From 0be4223e97680898cdec34270de741a51bf6db46 Mon Sep 17 00:00:00 2001 From: Sandro Santilli Date: Mon, 17 Sep 2012 12:31:54 +0000 Subject: [PATCH] Initial support for documentatin translation Adds "update-po" Makefile target under doc/ Adds "local-html" Makefile target under doc/po/ git-svn-id: http://svn.osgeo.org/postgis/trunk@10299 b70326c6-7e19-0410-871a-916f4a2858ee --- .gitignore | 5 + doc/Makefile.in | 43 +- doc/po/Makefile.local | 24 + doc/po/README | 11 + doc/po/it_IT/Makefile | 2 + doc/po/it_IT/extras.xml.po | 16 + doc/po/it_IT/extras_historytable.xml.po | 260 + doc/po/it_IT/extras_tigergeocoder.xml.po | 2161 +++ doc/po/it_IT/extras_topology.xml.po | 3792 +++++ doc/po/it_IT/faq.xml.po | 667 + doc/po/it_IT/faq_raster.xml.po | 658 + doc/po/it_IT/installation.xml.po | 1680 +++ doc/po/it_IT/introduction.xml.po | 509 + doc/po/it_IT/performance_tips.xml.po | 463 + doc/po/it_IT/postgis.xml.po | 63 + doc/po/it_IT/reference.xml.po | 55 + doc/po/it_IT/reference_accessor.xml.po | 3337 +++++ doc/po/it_IT/reference_constructor.xml.po | 2934 ++++ doc/po/it_IT/reference_editor.xml.po | 2417 +++ doc/po/it_IT/reference_exception.xml.po | 224 + doc/po/it_IT/reference_lrs.xml.po | 778 + doc/po/it_IT/reference_management.xml.po | 1143 ++ doc/po/it_IT/reference_measure.xml.po | 4934 ++++++ doc/po/it_IT/reference_misc.xml.po | 855 ++ doc/po/it_IT/reference_operator.xml.po | 1307 ++ doc/po/it_IT/reference_output.xml.po | 1846 +++ doc/po/it_IT/reference_processing.xml.po | 3813 +++++ doc/po/it_IT/reference_raster.xml.po | 12499 ++++++++++++++++ doc/po/it_IT/reference_transaction.xml.po | 392 + doc/po/it_IT/reference_type.xml.po | 279 + doc/po/it_IT/release_notes.xml.po | 4422 ++++++ doc/po/it_IT/reporting.xml.po | 170 + doc/po/it_IT/using_postgis_app.xml.po | 797 + doc/po/it_IT/using_postgis_dataman.xml.po | 3887 +++++ doc/po/it_IT/using_raster_dataman.xml.po | 1568 ++ doc/po/pt_BR/Makefile | 2 + doc/po/pt_BR/extras.xml.po | 16 + doc/po/pt_BR/extras_historytable.xml.po | 260 + doc/po/pt_BR/extras_tigergeocoder.xml.po | 2161 +++ doc/po/pt_BR/extras_topology.xml.po | 3792 +++++ doc/po/pt_BR/faq.xml.po | 667 + doc/po/pt_BR/faq_raster.xml.po | 658 + doc/po/pt_BR/installation.xml.po | 1680 +++ doc/po/pt_BR/introduction.xml.po | 509 + doc/po/pt_BR/performance_tips.xml.po | 463 + doc/po/pt_BR/postgis.xml.po | 59 + doc/po/pt_BR/reference.xml.po | 55 + doc/po/pt_BR/reference_accessor.xml.po | 3337 +++++ doc/po/pt_BR/reference_constructor.xml.po | 2934 ++++ doc/po/pt_BR/reference_editor.xml.po | 2417 +++ doc/po/pt_BR/reference_exception.xml.po | 224 + doc/po/pt_BR/reference_lrs.xml.po | 778 + doc/po/pt_BR/reference_management.xml.po | 1143 ++ doc/po/pt_BR/reference_measure.xml.po | 4934 ++++++ doc/po/pt_BR/reference_misc.xml.po | 855 ++ doc/po/pt_BR/reference_operator.xml.po | 1307 ++ doc/po/pt_BR/reference_output.xml.po | 1846 +++ doc/po/pt_BR/reference_processing.xml.po | 3813 +++++ doc/po/pt_BR/reference_raster.xml.po | 12499 ++++++++++++++++ doc/po/pt_BR/reference_transaction.xml.po | 392 + doc/po/pt_BR/reference_type.xml.po | 277 + doc/po/pt_BR/release_notes.xml.po | 4422 ++++++ doc/po/pt_BR/reporting.xml.po | 170 + doc/po/pt_BR/using_postgis_app.xml.po | 797 + doc/po/pt_BR/using_postgis_dataman.xml.po | 3887 +++++ doc/po/pt_BR/using_raster_dataman.xml.po | 1568 ++ doc/po/templates/README | 11 + doc/po/templates/extras.xml.pot | 16 + doc/po/templates/extras_historytable.xml.pot | 212 + doc/po/templates/extras_tigergeocoder.xml.pot | 1576 ++ doc/po/templates/extras_topology.xml.pot | 2896 ++++ doc/po/templates/faq.xml.pot | 473 + doc/po/templates/faq_raster.xml.pot | 480 + doc/po/templates/installation.xml.pot | 1680 +++ doc/po/templates/introduction.xml.pot | 382 + doc/po/templates/performance_tips.xml.pot | 352 + doc/po/templates/postgis.xml.pot | 46 + doc/po/templates/reference.xml.pot | 40 + doc/po/templates/reference_accessor.xml.pot | 2757 ++++ .../templates/reference_constructor.xml.pot | 2343 +++ doc/po/templates/reference_editor.xml.pot | 1916 +++ doc/po/templates/reference_exception.xml.pot | 187 + doc/po/templates/reference_lrs.xml.pot | 636 + doc/po/templates/reference_management.xml.pot | 854 ++ doc/po/templates/reference_measure.xml.pot | 3886 +++++ doc/po/templates/reference_misc.xml.pot | 681 + doc/po/templates/reference_operator.xml.pot | 1059 ++ doc/po/templates/reference_output.xml.pot | 1478 ++ doc/po/templates/reference_processing.xml.pot | 3079 ++++ doc/po/templates/reference_raster.xml.pot | 9079 +++++++++++ .../templates/reference_transaction.xml.pot | 309 + doc/po/templates/reference_type.xml.pot | 232 + doc/po/templates/release_notes.xml.pot | 3982 +++++ doc/po/templates/reporting.xml.pot | 136 + doc/po/templates/using_postgis_app.xml.pot | 659 + .../templates/using_postgis_dataman.xml.pot | 3084 ++++ doc/po/templates/using_raster_dataman.xml.pot | 1264 ++ 97 files changed, 161713 insertions(+), 5 deletions(-) create mode 100644 doc/po/Makefile.local create mode 100644 doc/po/README create mode 100644 doc/po/it_IT/Makefile create mode 100644 doc/po/it_IT/extras.xml.po create mode 100644 doc/po/it_IT/extras_historytable.xml.po create mode 100644 doc/po/it_IT/extras_tigergeocoder.xml.po create mode 100644 doc/po/it_IT/extras_topology.xml.po create mode 100644 doc/po/it_IT/faq.xml.po create mode 100644 doc/po/it_IT/faq_raster.xml.po create mode 100644 doc/po/it_IT/installation.xml.po create mode 100644 doc/po/it_IT/introduction.xml.po create mode 100644 doc/po/it_IT/performance_tips.xml.po create mode 100644 doc/po/it_IT/postgis.xml.po create mode 100644 doc/po/it_IT/reference.xml.po create mode 100644 doc/po/it_IT/reference_accessor.xml.po create mode 100644 doc/po/it_IT/reference_constructor.xml.po create mode 100644 doc/po/it_IT/reference_editor.xml.po create mode 100644 doc/po/it_IT/reference_exception.xml.po create mode 100644 doc/po/it_IT/reference_lrs.xml.po create mode 100644 doc/po/it_IT/reference_management.xml.po create mode 100644 doc/po/it_IT/reference_measure.xml.po create mode 100644 doc/po/it_IT/reference_misc.xml.po create mode 100644 doc/po/it_IT/reference_operator.xml.po create mode 100644 doc/po/it_IT/reference_output.xml.po create mode 100644 doc/po/it_IT/reference_processing.xml.po create mode 100644 doc/po/it_IT/reference_raster.xml.po create mode 100644 doc/po/it_IT/reference_transaction.xml.po create mode 100644 doc/po/it_IT/reference_type.xml.po create mode 100644 doc/po/it_IT/release_notes.xml.po create mode 100644 doc/po/it_IT/reporting.xml.po create mode 100644 doc/po/it_IT/using_postgis_app.xml.po create mode 100644 doc/po/it_IT/using_postgis_dataman.xml.po create mode 100644 doc/po/it_IT/using_raster_dataman.xml.po create mode 100644 doc/po/pt_BR/Makefile create mode 100644 doc/po/pt_BR/extras.xml.po create mode 100644 doc/po/pt_BR/extras_historytable.xml.po create mode 100644 doc/po/pt_BR/extras_tigergeocoder.xml.po create mode 100644 doc/po/pt_BR/extras_topology.xml.po create mode 100644 doc/po/pt_BR/faq.xml.po create mode 100644 doc/po/pt_BR/faq_raster.xml.po create mode 100644 doc/po/pt_BR/installation.xml.po create mode 100644 doc/po/pt_BR/introduction.xml.po create mode 100644 doc/po/pt_BR/performance_tips.xml.po create mode 100644 doc/po/pt_BR/postgis.xml.po create mode 100644 doc/po/pt_BR/reference.xml.po create mode 100644 doc/po/pt_BR/reference_accessor.xml.po create mode 100644 doc/po/pt_BR/reference_constructor.xml.po create mode 100644 doc/po/pt_BR/reference_editor.xml.po create mode 100644 doc/po/pt_BR/reference_exception.xml.po create mode 100644 doc/po/pt_BR/reference_lrs.xml.po create mode 100644 doc/po/pt_BR/reference_management.xml.po create mode 100644 doc/po/pt_BR/reference_measure.xml.po create mode 100644 doc/po/pt_BR/reference_misc.xml.po create mode 100644 doc/po/pt_BR/reference_operator.xml.po create mode 100644 doc/po/pt_BR/reference_output.xml.po create mode 100644 doc/po/pt_BR/reference_processing.xml.po create mode 100644 doc/po/pt_BR/reference_raster.xml.po create mode 100644 doc/po/pt_BR/reference_transaction.xml.po create mode 100644 doc/po/pt_BR/reference_type.xml.po create mode 100644 doc/po/pt_BR/release_notes.xml.po create mode 100644 doc/po/pt_BR/reporting.xml.po create mode 100644 doc/po/pt_BR/using_postgis_app.xml.po create mode 100644 doc/po/pt_BR/using_postgis_dataman.xml.po create mode 100644 doc/po/pt_BR/using_raster_dataman.xml.po create mode 100644 doc/po/templates/README create mode 100644 doc/po/templates/extras.xml.pot create mode 100644 doc/po/templates/extras_historytable.xml.pot create mode 100644 doc/po/templates/extras_tigergeocoder.xml.pot create mode 100644 doc/po/templates/extras_topology.xml.pot create mode 100644 doc/po/templates/faq.xml.pot create mode 100644 doc/po/templates/faq_raster.xml.pot create mode 100644 doc/po/templates/installation.xml.pot create mode 100644 doc/po/templates/introduction.xml.pot create mode 100644 doc/po/templates/performance_tips.xml.pot create mode 100644 doc/po/templates/postgis.xml.pot create mode 100644 doc/po/templates/reference.xml.pot create mode 100644 doc/po/templates/reference_accessor.xml.pot create mode 100644 doc/po/templates/reference_constructor.xml.pot create mode 100644 doc/po/templates/reference_editor.xml.pot create mode 100644 doc/po/templates/reference_exception.xml.pot create mode 100644 doc/po/templates/reference_lrs.xml.pot create mode 100644 doc/po/templates/reference_management.xml.pot create mode 100644 doc/po/templates/reference_measure.xml.pot create mode 100644 doc/po/templates/reference_misc.xml.pot create mode 100644 doc/po/templates/reference_operator.xml.pot create mode 100644 doc/po/templates/reference_output.xml.pot create mode 100644 doc/po/templates/reference_processing.xml.pot create mode 100644 doc/po/templates/reference_raster.xml.pot create mode 100644 doc/po/templates/reference_transaction.xml.pot create mode 100644 doc/po/templates/reference_type.xml.pot create mode 100644 doc/po/templates/release_notes.xml.pot create mode 100644 doc/po/templates/reporting.xml.pot create mode 100644 doc/po/templates/using_postgis_app.xml.pot create mode 100644 doc/po/templates/using_postgis_dataman.xml.pot create mode 100644 doc/po/templates/using_raster_dataman.xml.pot diff --git a/.gitignore b/.gitignore index 809866e1e..51fc09198 100644 --- a/.gitignore +++ b/.gitignore @@ -16,6 +16,11 @@ doc/html/image_src/Makefile doc/html/*.html doc/Makefile doc/Makefile.comments +doc/po/*/*.xml +doc/po/*/*.po~ +doc/po/*/html +doc/po/*/xsl +doc/po/*/*_comments.sql doc/postgis_aggs_mm.xml doc/postgis_comments.sql doc/postgis-out.xml diff --git a/doc/Makefile.in b/doc/Makefile.in index e5a27b28e..ed6215da6 100644 --- a/doc/Makefile.in +++ b/doc/Makefile.in @@ -21,6 +21,7 @@ # that we could produce a large number of files (think chunked HTML) # +translations = it_IT pt_BR POSTGIS_MAJOR_VERSION=@POSTGIS_MAJOR_VERSION@ POSTGIS_MINOR_VERSION=@POSTGIS_MINOR_VERSION@ @@ -68,6 +69,12 @@ DBLATEX=@DBLATEX@ # Imagemagick's convert utility program for generated images used in the documentation IMAGEMAGICK=@IMAGEMAGICK@ +# Gettext for translated documentation +MSGMERGE=msgmerge + +# XML gettext tools +XML2POT=xml2pot + # Directories for postgresql subdirectories PGSQL_DOCDIR=@PGSQL_DOCDIR@ PGSQL_MANDIR=@PGSQL_MANDIR@ @@ -127,6 +134,26 @@ XML_GENERATED_SOURCES = \ XML_INPUTS = $(XML_SOURCES) $(XML_GENERATED_SOURCES) +XML_INPUTS_POT = $(XML_SOURCES:%.xml=po/templates/%.xml.pot) + +$(XML_INPUTS_POT): po/templates/%.xml.pot: %.xml + $(XML2POT) $< > $@ + +# Creates or updates translation files +update-po: $(XML_INPUTS_POT) + @for lang in $(translations); do \ + echo "Creating po files for language $$lang..." ; \ + for pot in $(XML_INPUTS_POT); do \ + mkdir -p po/$$lang; \ + po=po/$$lang/`basename $$pot .pot`.po; \ + if test -f $$po; then \ + $(MSGMERGE) --update $$po $$pot; \ + else \ + cp $$pot $$po; \ + fi; \ + done; \ + done + ifeq ($(XSLTPROC),) postgis_aggs_mm.xml: requirements_not_met_xsltproc else @@ -169,16 +196,22 @@ chunked-html: postgis-out.xml Makefile images $(XML_INPUTS) $(CHUNK_HTML_DOCBOOK_XSL) \ $< -html: html/postgis.html +html: html/postgis$(DOCSUFFIX).html + +html-localized: + @for lang in $(translations); do \ + echo "Creating html for language $$lang..."; \ + $(MAKE) -C po/$$lang local-html; \ + done -html/postgis.html: postgis-out.xml Makefile images $(XML_INPUTS) +html/postgis$(DOCSUFFIX).html: postgis-out.xml Makefile images $(XML_INPUTS) $(XSLTPROC) $(XSLTPROC_COMMONOPTS) $(XSLTPROC_HTMLOPTS) \ - --output html/postgis.html \ + --output html/postgis$(DOCSUFFIX).html \ $(HTML_DOCBOOK_XSL) \ $< -postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}.pdf: postgis-out.xml images $(XML_INPUTS) +postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}$(DOCSUFFIX).pdf: postgis-out.xml images $(XML_INPUTS) if test x"$(DBLATEX)" = x; then \ echo "Error: dblatex not found, can't build pdf"; \ echo " try installing dblatex and then re-run configure"; \ @@ -196,7 +229,7 @@ postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSIO -o postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}.pdf $<; \ fi -pdf: postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}.pdf +pdf: postgis-${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}$(DOCSUFFIX).pdf doxygen.cfg: doxygen.cfg.in $(PERL) -lpe "s'@@LAST_RELEASE_VERSION@@'${POSTGIS_MAJOR_VERSION}.${POSTGIS_MINOR_VERSION}.${POSTGIS_MICRO_VERSION}'g" $< > $@ diff --git a/doc/po/Makefile.local b/doc/po/Makefile.local new file mode 100644 index 000000000..bb67f899e --- /dev/null +++ b/doc/po/Makefile.local @@ -0,0 +1,24 @@ +# This file should be included by the Makefile +# in each language directory + +local-all: local-html comments + +local-html: symlinks + $(MAKE) html + +local-pdf: symlinks + $(MAKE) pdf + +symlinks: + rm -f html; ln -s ../../html html + rm -f xsl; ln -s ../../xsl xsl + +# for XML_SOURCES +include ../../Makefile + +# XML gettext tools +PO2XML=po2xml + +$(XML_SOURCES): %.xml: %.xml.po + $(PO2XML) ../../$@ $< > $@ + diff --git a/doc/po/README b/doc/po/README new file mode 100644 index 000000000..36f6f5f6e --- /dev/null +++ b/doc/po/README @@ -0,0 +1,11 @@ +Translation files for the PostGIS manual. + +Compilation of the files require the ``poxml`` package, +part of the KDE development kit. + +Run ``make`` in language directories to generate the +localized manual. + +Run ``make update-po`` from the parent directory to +update the translation files to be in sync with the +official documentation. diff --git a/doc/po/it_IT/Makefile b/doc/po/it_IT/Makefile new file mode 100644 index 000000000..8e7df5460 --- /dev/null +++ b/doc/po/it_IT/Makefile @@ -0,0 +1,2 @@ +DOCSUFFIX=-it +include ../Makefile.local diff --git a/doc/po/it_IT/extras.xml.po b/doc/po/it_IT/extras.xml.po new file mode 100644 index 000000000..475a773f9 --- /dev/null +++ b/doc/po/it_IT/extras.xml.po @@ -0,0 +1,16 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" diff --git a/doc/po/it_IT/extras_historytable.xml.po b/doc/po/it_IT/extras_historytable.xml.po new file mode 100644 index 000000000..ba16bf119 --- /dev/null +++ b/doc/po/it_IT/extras_historytable.xml.po @@ -0,0 +1,260 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: extras_historytable.xml:3 +#, no-c-format +msgid "History Tracking" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:6 +#, no-c-format +msgid "" +"Suppose you have a table of data that represents the current state of a " +"particular geographic feature. A parcels table, or a roads table, or a fruit " +"trees table, whatever. Generally, GIS tools understand a table as a single " +"entity into which they can update, insert and delete rows from. How you do " +"allow common GIS tools to work against your data, while maintaining an audit " +"trail of what changes have been made, by whom, and what the past state of " +"the data is?" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:10 +#, no-c-format +msgid "" +"This history_table extra module provides some utility " +"functions for creating and maintaining history." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:14 +#, no-c-format +msgid "" +"The history_table was also packaged in PostGIS 1.5, but " +"added to the documentation in PostGIS 2.0. This package is written in " +"plpgsql and located in the extras/history_table of " +"PostGIS source tar balls and source repository." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:15 +#, no-c-format +msgid "" +"If you have a table 'roads', this module will maintain a 'roads_history' " +"side table, which contains all the columns of the parent table, and the " +"following additional columns:" +msgstr "" + +#. Tag: programlisting +#: extras_historytable.xml:16 +#, no-c-format +msgid "" +"history_id | integer | not null default \n" +" date_added | timestamp without time zone | not null default now()\n" +" date_deleted | timestamp without time zone | \n" +" last_operation | character varying(30) | not null\n" +" active_user | character varying(90) | not null default " +"\"current_user\"()\n" +" current_version | text | not null" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:20 +#, no-c-format +msgid "" +"When you insert a new record into 'roads' a record is automatically inserted " +"into 'roads_history', with the 'date_added' filled in the 'date_deleted' set " +"to NULL, a unique 'history_id', a 'last_operation' of 'INSERT' and " +"'active_user' set." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:23 +#, no-c-format +msgid "" +"When you delete a record in 'roads', the record in the history table is " +"*not* deleted, but the 'date_deleted' is set to the current date." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:26 +#, no-c-format +msgid "" +"When you update a record in 'roads', the current record has 'date_deleted' " +"filled in and a new record is created with the 'date_added' set and " +"'date_deleted' NULL." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:30 +#, no-c-format +msgid "" +"With this information maintained, it is possible to retrieve the history of " +"any record in the roads table:" +msgstr "" + +#. Tag: programlisting +#: extras_historytable.xml:31 +#, no-c-format +msgid "SELECT * FROM roads_history WHERE roads_pk = 111;" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:33 +#, no-c-format +msgid "Or, to retrieve a view of the roads table at any point in the past:" +msgstr "" + +#. Tag: programlisting +#: extras_historytable.xml:34 +#, no-c-format +msgid "" +"SELECT * FROM roads_history \n" +" WHERE date_added < 'January 1, 2001' AND \n" +" ( date_deleted >= 'January 1, 2001' OR date_deleted IS NULL );" +msgstr "" + +#. Tag: refname +#: extras_historytable.xml:38 +#, no-c-format +msgid "Postgis_Install_History" +msgstr "" + +#. Tag: refpurpose +#: extras_historytable.xml:39 +#, no-c-format +msgid "" +"Creates a table that will hold some interesting values for managing history " +"tables." +msgstr "" + +#. Tag: funcprototype +#: extras_historytable.xml:44 +#, no-c-format +msgid "" +"void Postgis_Install_History " +"" +msgstr "" + +#. Tag: title +#: extras_historytable.xml:52 extras_historytable.xml:92 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:54 +#, no-c-format +msgid "" +"Creates a table that will hold some interesting values for managing history " +"tables. Creates a table called historic_information" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:58 extras_historytable.xml:100 +#, no-c-format +msgid "Availability: 1.5.0" +msgstr "" + +#. Tag: title +#: extras_historytable.xml:63 extras_historytable.xml:105 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: extras_historytable.xml:65 +#, no-c-format +msgid "SELECT postgis_install_history();" +msgstr "" + +#. Tag: title +#: extras_historytable.xml:71 extras_historytable.xml:113 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: refname +#: extras_historytable.xml:77 +#, no-c-format +msgid "Postgis_Enable_History" +msgstr "" + +#. Tag: refpurpose +#: extras_historytable.xml:78 +#, no-c-format +msgid "" +"Registers a tablein the history_information table for tracking and also adds " +"in side line history table and insert, update, delete rules on the table." +msgstr "" + +#. Tag: funcprototype +#: extras_historytable.xml:83 +#, no-c-format +msgid "" +"boolean Postgis_Enable_History " +"text p_schema " +"text p_table" +msgstr "" + +#. Tag: para +#: extras_historytable.xml:94 +#, no-c-format +msgid "" +"Registers a table in the history_information table for tracking and also " +"adds in side line history table with same name as table but prefixed with " +"history in the same schema as the original table. Puts in " +"insert, update, delete rules on the table. Any inserts,updates,deletes of " +"the geometry are recorded in the history table." +msgstr "" + +#. Tag: para +#: extras_historytable.xml:97 +#, no-c-format +msgid "" +"This function currently relies on a geometry column being registered in " +"geometry_columns and fails if the geometry column is not " +"present in geometry_columns table." +msgstr "" + +#. Tag: programlisting +#: extras_historytable.xml:107 +#, no-c-format +msgid "" +"CREATE TABLE roads(gid SERIAL PRIMARY KEY, road_name varchar(150));\n" +"SELECT AddGeometryColumn('roads', 'geom', 26986, 'LINESTRING', 2);\n" +" \n" +"SELECT postgis_enable_history('public', 'roads', 'geom') As register_table;\n" +"register_table\n" +"--------------\n" +"t\n" +"\n" +"INSERT INTO roads(road_name, geom) \n" +" VALUES('Test Street', ST_GeomFromText('LINESTRING(231660.5 832170,231647 " +"832202,231627.5 832250.5)',26986));\n" +"\n" +"-- check transaction detail --\n" +"SELECT date_added, last_operation, current_version \n" +"FROM roads_history \n" +"WHERE road_name = 'Test Street' ORDER BY date_added DESC;\n" +"\n" +" date_added | last_operation | current_version\n" +"------------------------+----------------+-----------------\n" +" 2011-02-07 12:44:36.92 | INSERT | 2" +msgstr "" diff --git a/doc/po/it_IT/extras_tigergeocoder.xml.po b/doc/po/it_IT/extras_tigergeocoder.xml.po new file mode 100644 index 000000000..771420419 --- /dev/null +++ b/doc/po/it_IT/extras_tigergeocoder.xml.po @@ -0,0 +1,2161 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: para +#: extras_tigergeocoder.xml:6 +#, no-c-format +msgid "" +"A plpgsql based geocoder written to work with the TIGER (Topologically Integrated Geographic " +"Encoding and Referencing system ) / Line and Master Address database export released by the US Census Bureau. In versions prior to 2008 the TIGER " +"files were released in ASCII format. The older geocoder used to work with " +"that format and is available in PostGIS source 1.5 and below in " +"extras/tiger_geocoder/tiger_2006andbefore." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:8 +#, no-c-format +msgid "" +"There are four components to the geocoder: the data loader functions, the " +"address normalizer, the address geocoder, and the reverse geocoder. The " +"latest version updated to use the TIGER 2011 census data is located in the " +"extras/tiger_geocoder/tiger_2011 folder." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:9 +#, no-c-format +msgid "" +"Although it is designed specifically for the US, a lot of the concepts and " +"functions are applicable and can be adapted to work with other country " +"address and road networks." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:10 +#, no-c-format +msgid "" +"The script builds a schema called tiger to house all the " +"tiger related functions, reusable lookup data such as road type prefixes, " +"suffixes, states, various control tables for managing data load, and " +"skeleton base tables from which all the tiger loaded tables inherit from." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:11 +#, no-c-format +msgid "" +"Another schema called tiger_data is also created which " +"houses all the census data for each state that the loader downloads from " +"Census site and loads into the database. In the current model, each set of " +"state tables is prefixed with the state code e.g ma_addr, " +"ma_edges etc with constraints to enforce only that state " +"data. Each of these tables inherits from the tables addr, " +"faces, edges, etc located in the " +"tiger schema." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:13 +#, no-c-format +msgid "" +"All the geocode functions only reference the base tables, so there is no " +"requirement that the data schema be called tiger_data or " +"that data can't be further partitioned into other schemas -- e.g a different " +"schema for each state, as long as all the tables inherit from the tables in " +"the tiger schema." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:17 +#, no-c-format +msgid "" +"If you are using tiger geocoder (tiger_2010), you can upgrade the scripts " +"using the accompanying upgrade_geocoder.bat / .sh scripts in tiger_2011. One " +"major change between tiger_2010 and tiger_2011 is that the county and county and " +"state tables are no longer broken out by state. We'll be " +"refining the upgrade scripts until release. If you have data from tiger_2010 " +"and want replace with tiger_2011 refer to " +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:24 +#, no-c-format +msgid "Design:" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:25 +#, no-c-format +msgid "" +"The goal of this project is to build a fully functional geocoder that can " +"process an arbitrary United States address string and using normalized TIGER " +"census data, produce a point geometry and rating reflecting the location of " +"the given address and likeliness of the location. The higher the rating " +"number the worse the result." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:27 +#, no-c-format +msgid "" +"The reverse_geocode function, introduced in PostGIS 2.0.0 " +"is useful for deriving the street address and cross streets of a GPS " +"location." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:28 +#, no-c-format +msgid "" +"The geocoder should be simple for anyone familiar with PostGIS to install " +"and use, and should be easily installable and usable on all platforms " +"supported by PostGIS." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:29 +#, no-c-format +msgid "" +"It should be robust enough to function properly despite formatting and " +"spelling errors." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:30 +#, no-c-format +msgid "" +"It should be extensible enough to be used with future data updates, or " +"alternate data sources with a minimum of coding changes." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:32 +#, no-c-format +msgid "" +"The tiger schema must be added to the database search " +"path for the functions to work properly." +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:36 +#, no-c-format +msgid "Tiger Geocoder" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:38 +#, no-c-format +msgid "" +"There are a couple other open source geocoders for PostGIS, that unlike " +"tiger geocoder have the advantage of multi-country geocoding support" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:40 +#, no-c-format +msgid "" +"Nominatim and uses OpenStreetMap gazeteer formatted data. It requires osm2pgsql " +"for loading the data, PostgreSQL 8.4+ and PostGIS 1.5+ to function. It is " +"packaged as a webservice interface and seems designed to be called as a " +"webservice. Just like the tiger geocoder, it has both a geocoder and a " +"reverse geocoder component. From the documentation, it is unclear if it has " +"a pure SQL interface like the tiger geocoder, or if a good deal of the logic " +"is implemented in the web interface." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:43 +#, no-c-format +msgid "" +"GIS Graphy also utilizes " +"PostGIS and like Nominatim works with OpenStreetMap (OSM) data. It comes " +"with a loader to load OSM data and similar to Nominatim is capable of " +"geocoding not just US. Much like Nominatim, it runs as a webservice and " +"relies on Java 1.5, Servlet apps, Solr. GisGraphy is cross-platform and also " +"has a reverse geocoder among some other neat features." +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:48 +#, no-c-format +msgid "Drop_Indexes_Generate_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:50 +#, no-c-format +msgid "" +"Generates a script that drops all non-primary key and non-unique " +"indexes on tiger schema and user specified schema. Defaults schema to " +"tiger_data if no schema is specified." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:55 +#, no-c-format +msgid "" +"text Drop_Indexes_Generate_Script " +"text " +"param_schema=tiger_data" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:63 extras_tigergeocoder.xml:106 +#: extras_tigergeocoder.xml:148 extras_tigergeocoder.xml:204 +#: extras_tigergeocoder.xml:266 extras_tigergeocoder.xml:311 +#: extras_tigergeocoder.xml:351 extras_tigergeocoder.xml:390 +#: extras_tigergeocoder.xml:435 extras_tigergeocoder.xml:493 +#: extras_tigergeocoder.xml:550 extras_tigergeocoder.xml:605 +#: extras_tigergeocoder.xml:650 extras_tigergeocoder.xml:728 +#: extras_tigergeocoder.xml:775 extras_tigergeocoder.xml:847 +#: extras_tigergeocoder.xml:912 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:65 +#, no-c-format +msgid "" +"Generates a script that drops all non-primary key and non-unique " +"indexes on tiger schema and user specified schema. Defaults schema to " +"tiger_data if no schema is specified." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:66 +#, no-c-format +msgid "" +"This is useful for minimizing index bloat that may confuse the query planner " +"or take up unnecessary space. Use in combination with to add just the indexes used by the geocoder." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:69 extras_tigergeocoder.xml:154 +#: extras_tigergeocoder.xml:273 extras_tigergeocoder.xml:355 +#: extras_tigergeocoder.xml:398 extras_tigergeocoder.xml:453 +#: extras_tigergeocoder.xml:613 extras_tigergeocoder.xml:801 +#: extras_tigergeocoder.xml:873 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:76 extras_tigergeocoder.xml:118 +#: extras_tigergeocoder.xml:161 extras_tigergeocoder.xml:405 +#: extras_tigergeocoder.xml:460 extras_tigergeocoder.xml:518 +#: extras_tigergeocoder.xml:573 extras_tigergeocoder.xml:620 +#: extras_tigergeocoder.xml:696 extras_tigergeocoder.xml:738 +#: extras_tigergeocoder.xml:806 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:77 +#, no-c-format +msgid "" +"SELECT drop_indexes_generate_script() As actionsql;\n" +"actionsql\n" +"---------------------------------------------------------\n" +"DROP INDEX tiger.idx_tiger_countysub_lookup_lower_name;\n" +"DROP INDEX tiger.idx_tiger_edges_countyfp;\n" +"DROP INDEX tiger.idx_tiger_faces_countyfp;\n" +"DROP INDEX tiger.tiger_place_the_geom_gist;\n" +"DROP INDEX tiger.tiger_edges_the_geom_gist;\n" +"DROP INDEX tiger.tiger_state_the_geom_gist;\n" +"DROP INDEX tiger.idx_tiger_addr_least_address;\n" +"DROP INDEX tiger.idx_tiger_addr_tlid;\n" +"DROP INDEX tiger.idx_tiger_addr_zip;\n" +"DROP INDEX tiger.idx_tiger_county_countyfp;\n" +"DROP INDEX tiger.idx_tiger_county_lookup_lower_name;\n" +"DROP INDEX tiger.idx_tiger_county_lookup_snd_name;\n" +"DROP INDEX tiger.idx_tiger_county_lower_name;\n" +"DROP INDEX tiger.idx_tiger_county_snd_name;\n" +"DROP INDEX tiger.idx_tiger_county_the_geom_gist;\n" +"DROP INDEX tiger.idx_tiger_countysub_lookup_snd_name;\n" +"DROP INDEX tiger.idx_tiger_cousub_countyfp;\n" +"DROP INDEX tiger.idx_tiger_cousub_cousubfp;\n" +"DROP INDEX tiger.idx_tiger_cousub_lower_name;\n" +"DROP INDEX tiger.idx_tiger_cousub_snd_name;\n" +"DROP INDEX tiger.idx_tiger_cousub_the_geom_gist;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_addr_least_address;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_addr_tlid;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_addr_zip;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_county_countyfp;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_county_lookup_lower_name;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_county_lookup_snd_name;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_county_lower_name;\n" +"DROP INDEX tiger_data.idx_tiger_data_ma_county_snd_name;\n" +":\n" +":" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:83 extras_tigergeocoder.xml:125 +#: extras_tigergeocoder.xml:168 extras_tigergeocoder.xml:235 +#: extras_tigergeocoder.xml:289 extras_tigergeocoder.xml:328 +#: extras_tigergeocoder.xml:368 extras_tigergeocoder.xml:412 +#: extras_tigergeocoder.xml:470 extras_tigergeocoder.xml:528 +#: extras_tigergeocoder.xml:582 extras_tigergeocoder.xml:627 +#: extras_tigergeocoder.xml:706 extras_tigergeocoder.xml:749 +#: extras_tigergeocoder.xml:821 extras_tigergeocoder.xml:889 +#: extras_tigergeocoder.xml:929 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:84 extras_tigergeocoder.xml:413 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:90 +#, no-c-format +msgid "Drop_Nation_Tables_Generate_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:92 +#, no-c-format +msgid "" +"Generates a script that drops all tables in the specified schema that start " +"with county_all, state_all or stae " +"code followed by county or state." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:97 extras_tigergeocoder.xml:139 +#, no-c-format +msgid "" +"text Drop_State_Tables_Generate_Script text param_state text " +"param_schema=tiger_data" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:108 +#, no-c-format +msgid "" +"Generates a script that drops all tables in the specified schema that start " +"with county_all, state_all or stae " +"code followed by county or state. This " +"is needed if you are upgrading from tiger_2010 to " +"tiger_2011 data." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:111 extras_tigergeocoder.xml:316 +#: extras_tigergeocoder.xml:567 extras_tigergeocoder.xml:916 +#, no-c-format +msgid "Availability: 2.1.0" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:119 +#, no-c-format +msgid "" +"SELECT drop_nation_tables_generate_script();\n" +"DROP TABLE tiger_data.county_all;\n" +"DROP TABLE tiger_data.county_all_lookup;\n" +"DROP TABLE tiger_data.state_all;\n" +"DROP TABLE tiger_data.ma_county;\n" +"DROP TABLE tiger_data.ma_state;" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:132 +#, no-c-format +msgid "Drop_State_Tables_Generate_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:134 +#, no-c-format +msgid "" +"Generates a script that drops all tables in the specified schema that are " +"prefixed with the state abbreviation. Defaults schema to " +"tiger_data if no schema is specified." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:150 +#, no-c-format +msgid "" +"Generates a script that drops all tables in the specified schema that are " +"prefixed with the state abbreviation. Defaults schema to " +"tiger_data if no schema is specified. This function is " +"useful for dropping tables of a state just before you reload a state in case " +"something went wrong during your previous load." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:162 +#, no-c-format +msgid "" +"SELECT drop_state_tables_generate_script('PA');\n" +"DROP TABLE tiger_data.pa_addr;\n" +"DROP TABLE tiger_data.pa_county;\n" +"DROP TABLE tiger_data.pa_county_lookup;\n" +"DROP TABLE tiger_data.pa_cousub;\n" +"DROP TABLE tiger_data.pa_edges;\n" +"DROP TABLE tiger_data.pa_faces;\n" +"DROP TABLE tiger_data.pa_featnames;\n" +"DROP TABLE tiger_data.pa_place;\n" +"DROP TABLE tiger_data.pa_state;\n" +"DROP TABLE tiger_data.pa_zip_lookup_base;\n" +"DROP TABLE tiger_data.pa_zip_state;\n" +"DROP TABLE tiger_data.pa_zip_state_loc;" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:174 +#, no-c-format +msgid "Geocode" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:176 +#, no-c-format +msgid "" +"Takes in an address as a string (or other normalized address) and outputs a " +"set of possible locations which include a point geometry in NAD 83 long lat, " +"a normalized address for each, and the rating. The lower the rating the more " +"likely the match. Results are sorted by lowest rating first. Can optionally " +"pass in maximum results, defaults to 10, and restrict_region (defaults to " +"NULL)" +msgstr "" + +#. Tag: funcsynopsis +#: extras_tigergeocoder.xml:181 +#, no-c-format +msgid "" +" setof record geocode " +"varchar address " +"integer max_results=10 geometry " +"restrict_region=NULL " +"norm_addy OUT addy " +"geometry OUT geomout integer OUT rating setof record " +"geocode norm_addy " +"in_addy integer max_results=10 " +"geometry " +"restrict_region=NULL " +"norm_addy OUT addy " +"geometry OUT geomout integer OUT rating " +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:206 +#, no-c-format +msgid "" +"Takes in an address as a string (or already normalized address) and outputs " +"a set of possible locations which include a point geometry in NAD 83 long " +"lat, a normalized_address (addy) for each, and the " +"rating. The lower the rating the more likely the match. Results are sorted " +"by lowest rating first. Uses Tiger data (edges,faces,addr), PostgreSQL fuzzy " +"string matching (soundex,levenshtein) and PostGIS line interpolation " +"functions to interpolate address along the Tiger edges. The higher the " +"rating the less likely the geocode is right. The geocoded point is defaulted " +"to offset 10 meters from center-line off to side (L/R) of street address is " +"located on." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:210 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 to support Tiger 2010 structured data and revised some logic " +"to improve speed, accuracy of geocoding, and to offset point from centerline " +"to side of street address is located on. New parameter max_results useful " +"for specifying ot just return the best result." +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:216 extras_tigergeocoder.xml:279 +#: extras_tigergeocoder.xml:361 +#, no-c-format +msgid "Examples: Basic" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:217 +#, no-c-format +msgid "" +"The below examples timings are on a 3.0 GHZ single processor Windows 7 " +"machine with 2GB ram running PostgreSQL 9.1rc1/PostGIS 2.0 loaded with all " +"of MA,MN,CA, RI state Tiger data loaded." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:218 +#, no-c-format +msgid "Exact matches are faster to compute (61ms)" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:219 +#, no-c-format +msgid "" +"SELECT g.rating, ST_X(g.geomout) As lon, ST_Y(g.geomout) As lat, \n" +" (addy).address As stno, (addy).streetname As street, \n" +" (addy).streettypeabbrev As styp, (addy).location As city, (addy)." +"stateabbrev As st,(addy).zip \n" +" FROM geocode('75 State Street, Boston MA 02109') As g; \n" +" rating | lon | lat | stno | street | styp | " +"city | st | zip \n" +"--------+-------------------+------------------+------+--------+------" +"+--------+----+-------\n" +" 0 | -71.0556722990239 | 42.3589914927049 | 75 | State | St | " +"Boston | MA | 02109" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:220 +#, no-c-format +msgid "" +"Even if zip is not passed in the geocoder can guess (took about 122-150 ms)" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:221 +#, no-c-format +msgid "" +"SELECT g.rating, ST_AsText(ST_SnapToGrid(g.geomout,0.00001)) As wktlonlat, \n" +" (addy).address As stno, (addy).streetname As street, \n" +" (addy).streettypeabbrev As styp, (addy).location As city, (addy)." +"stateabbrev As st,(addy).zip \n" +" FROM geocode('226 Hanover Street, Boston, MA',1) As g; \n" +" rating | wktlonlat | stno | street | styp | city | st | " +"zip \n" +"--------+---------------------------+------+---------+------+--------+----" +"+-------\n" +" 1 | POINT(-71.05528 42.36316) | 226 | Hanover | St | Boston | MA | " +"02113" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:222 +#, no-c-format +msgid "" +"Can handle misspellings and provides more than one possible solution with " +"ratings and takes longer (500ms)." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:223 +#, no-c-format +msgid "" +"SELECT g.rating, ST_AsText(ST_SnapToGrid(g.geomout,0.00001)) As wktlonlat, \n" +" (addy).address As stno, (addy).streetname As street, \n" +" (addy).streettypeabbrev As styp, (addy).location As city, (addy)." +"stateabbrev As st,(addy).zip \n" +" FROM geocode('31 - 37 Stewart Street, Boston, MA 02116') As g; \n" +" rating | wktlonlat | stno | street | styp | city | st | " +"zip \n" +"--------+---------------------------+------+--------+------+--------+----" +"+-------\n" +" 70 | POINT(-71.06459 42.35113) | 31 | Stuart | St | Boston | MA | " +"02116" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:225 +#, no-c-format +msgid "" +"Using to do a batch geocode of addresses. Easiest is to set " +"max_results=1. Only process those not yet geocoded (have " +"no rating)." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:226 +#, no-c-format +msgid "" +"CREATE TABLE addresses_to_geocode(addid serial PRIMARY KEY, address text,\n" +" lon numeric, lat numeric, new_address text, rating " +"integer);\n" +"\n" +"INSERT INTO addresses_to_geocode(address)\n" +"VALUES ('529 Main Street, Boston MA, 02129'),\n" +" ('77 Massachusetts Avenue, Cambridge, MA 02139'),\n" +" ('25 Wizard of Oz, Walaford, KS 99912323'),\n" +" ('26 Capen Street, Medford, MA'),\n" +" ('124 Mount Auburn St, Cambridge, Massachusetts 02138'),\n" +" ('950 Main Street, Worcester, MA 01610');\n" +" \n" +"-- only update the first 3 addresses (323-704 ms - there are caching and " +"shared memory effects so first geocode you do is always slower) --\n" +"-- for large numbers of addresses you don't want to update all at once\n" +"-- since the whole geocode must commit at once \n" +"-- For this example we rejoin with LEFT JOIN \n" +"-- and set to rating to -1 rating if no match \n" +"-- to ensure we don't regeocode a bad address \n" +"UPDATE addresses_to_geocode\n" +" SET (rating, new_address, lon, lat) \n" +" = ( COALESCE((g.geo).rating,-1), pprint_addy((g.geo).addy),\n" +" ST_X((g.geo).geomout)::numeric(8,5), ST_Y((g.geo).geomout)::" +"numeric(8,5) )\n" +"FROM (SELECT addid \n" +" FROM addresses_to_geocode \n" +" WHERE rating IS NULL ORDER BY addid LIMIT 3) As a\n" +" LEFT JOIN (SELECT addid, (geocode(address,1)) As geo\n" +" FROM addresses_to_geocode As ag\n" +" WHERE ag.rating IS NULL ORDER BY addid LIMIT 3) As g ON a.addid = g." +"addid\n" +"WHERE a.addid = addresses_to_geocode.addid;\n" +"\n" +"result\n" +"-----\n" +"Query returned successfully: 3 rows affected, 480 ms execution time.\n" +"\n" +"SELECT * FROM addresses_to_geocode WHERE rating is not null;\n" +"\n" +" addid | address | lon | lat " +"| new_address | rating \n" +"-------+----------------------------------------------+-----------+----------" +"+-------------------------------------------+--------\n" +" 1 | 529 Main Street, Boston MA, 02129 | -71.07181 | 42.38359 " +"| 529 Main St, Boston, MA 02129 | 0\n" +" 2 | 77 Massachusetts Avenue, Cambridge, MA 02139 | -71.09428 | 42.35988 " +"| 77 Massachusetts Ave, Cambridge, MA 02139 | 0\n" +" 3 | 25 Wizard of Oz, Walaford, KS 99912323 | | " +"| | -1" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:229 +#, no-c-format +msgid "Examples: Using Geometry filter" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:230 +#, no-c-format +msgid "" +"SELECT g.rating, ST_AsText(ST_SnapToGrid(g.geomout,0.00001)) As wktlonlat, \n" +" (addy).address As stno, (addy).streetname As street, \n" +" (addy).streettypeabbrev As styp, \n" +" (addy).location As city, (addy).stateabbrev As st,(addy).zip \n" +" FROM geocode('100 Federal Street, MA',\n" +" 3, \n" +" (SELECT ST_Union(the_geom) \n" +" FROM place WHERE statefp = '25' AND name = 'Lynn')::" +"geometry\n" +" ) As g;\n" +"\n" +" rating | wktlonlat | stno | street | styp | city | st | " +"zip\n" +"--------+--------------------------+------+---------+------+------+----" +"+-------\n" +" 8 | POINT(-70.96796 42.4659) | 100 | Federal | St | Lynn | MA | " +"01905\n" +"Total query runtime: 245 ms." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:236 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:242 +#, no-c-format +msgid "Geocode_Intersection" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:244 +#, no-c-format +msgid "" +"Takes in 2 streets that intersect and a state, city, zip, and outputs a set " +"of possible locations on the first cross street that is at the intersection, " +"also includes a point geometry in NAD 83 long lat, a normalized address for " +"each location, and the rating. The lower the rating the more likely the " +"match. Results are sorted by lowest rating first. Can optionally pass in " +"maximum results, defaults to 10" +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:250 +#, no-c-format +msgid "" +"setof record geocode_intersection " +"text roadway1 " +"text roadway2 " +"text in_state " +"text in_city text in_zip integer " +"max_results=10 norm_addy OUT addy geometry OUT geomout integer " +" OUT rating" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:268 +#, no-c-format +msgid "" +"Takes in 2 streets that intersect and a state, city, zip, and outputs a set " +"of possible locations on the first cross street that is at the intersection, " +"also includes a point geometry in NAD 83 long lat, a normalized address for " +"each location, and the rating. The lower the rating the more likely the " +"match. Results are sorted by lowest rating first. Can optionally pass in " +"maximum results, defaults to 10. Returns normalized_address (addy) for each, geomout as the point location in nad 83 long lat, " +"and the rating. The lower the rating the more likely the match. Results are " +"sorted by lowest rating first. Uses Tiger data (edges,faces,addr), " +"PostgreSQL fuzzy string matching (soundex,levenshtein)" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:280 +#, no-c-format +msgid "" +"The below examples timings are on a 3.0 GHZ single processor Windows 7 " +"machine with 2GB ram running PostgreSQL 9.0/PostGIS 1.5 loaded with all of " +"MA state Tiger data loaded. Currently a bit slow (3000 ms)" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:281 +#, no-c-format +msgid "" +"Testing on Windows 2003 64-bit 8GB on PostGIS 2.0 PostgreSQL 64-bit Tiger " +"2011 data loaded -- (41ms)" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:282 +#, no-c-format +msgid "" +"SELECT pprint_addy(addy), st_astext(geomout),rating \n" +" FROM geocode_intersection( 'Haverford St','Germania " +"St', 'MA', 'Boston', '02130',1); \n" +" pprint_addy | st_astext | rating\n" +"----------------------------------+----------------------------+--------\n" +"98 Haverford St, Boston, MA 02130 | POINT(-71.101375 42.31376) | 0" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:283 +#, no-c-format +msgid "" +"Even if zip is not passed in the geocoder can guess (took about 3500 ms on " +"the windows 7 box), on the windows 2003 64-bit 741 ms" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:284 +#, no-c-format +msgid "" +"SELECT pprint_addy(addy), st_astext(geomout),rating \n" +" FROM geocode_intersection('Weld', 'School', " +"'MA', 'Boston');\n" +" pprint_addy | st_astext | rating\n" +"-------------------------------+--------------------------+--------\n" +" 98 Weld Ave, Boston, MA 02119 | POINT(-71.099 42.314234) | 3\n" +" 99 Weld Ave, Boston, MA 02119 | POINT(-71.099 42.314234) | 3" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:290 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:296 +#, no-c-format +msgid "Get_Geocode_Setting" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:298 +#, no-c-format +msgid "" +"Returns value of specific setting stored in tiger.geocode_settings table." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:303 +#, no-c-format +msgid "" +"text Get_Geocode_Setting " +"text setting_name" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:313 +#, no-c-format +msgid "" +"Returns value of specific setting stored in tiger.geocode_settings table. " +"Settings allow you to toggle debugging of functions. Later plans will be to " +"control rating with settings. Current list of settings are as follows:" +msgstr "" + +#. Tag: screen +#: extras_tigergeocoder.xml:314 +#, no-c-format +msgid "" +"name | category | " +"short_desc \n" +"----------------------------+----------" +"+----------------------------------------------------------------------------------\n" +" debug_geocode_address | debug | outputs debug information in notice " +"log such as queries \n" +" | when geocode_addresss is called if " +"true\n" +" debug_geocode_intersection | debug | outputs debug information in notice " +"log such as queries \n" +" | when geocode_intersection is " +"called if true\n" +" debug_normalize_address | debug | outputs debug information in notice " +"log such as queries \n" +" | and intermediate expressions when " +"normalize_address is called if true\n" +" debug_reverse_geocode | debug | if true, outputs debug information " +"in notice log \n" +" such as queries and intermediate " +"expressions when reverse_geocode" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:322 extras_tigergeocoder.xml:922 +#, no-c-format +msgid "Example return debugging setting" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:323 +#, no-c-format +msgid "" +"SELECT get_geocode_setting('debug_geocode_address) As result;\n" +"result\n" +"---------\n" +"false" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:335 +#, no-c-format +msgid "Get_Tract" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:337 +#, no-c-format +msgid "" +"Returns census tract or field from tract table of where the geometry is " +"located. Default to returning short name of tract." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:342 +#, no-c-format +msgid "" +"text get_tract " +"geometry loc_geom " +"text output_field='name'" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:353 +#, no-c-format +msgid "" +"Given a geometry will return the census tract location of that geometry. NAD " +"83 long lat is assumed if no spatial ref sys is specified." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:362 +#, no-c-format +msgid "" +"SELECT get_tract(ST_Point(-71.101375, 42.31376) ) As tract_name;\n" +"tract_name\n" +"---------\n" +"1203.01" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:363 +#, no-c-format +msgid "" +"--this one returns the tiger geoid\n" +"SELECT get_tract(ST_Point(-71.101375, 42.31376), 'tract_id' ) As tract_id;\n" +"tract_id\n" +"---------\n" +"25025120301" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:369 +#, no-c-format +msgid ">" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:375 +#, no-c-format +msgid "Install_Missing_Indexes" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:377 +#, no-c-format +msgid "" +"Finds all tables with key columns used in geocoder joins and filter " +"conditions that are missing used indexes on those columns and will add them." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:382 +#, no-c-format +msgid "" +"boolean Install_Missing_Indexes " +"" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:392 +#, no-c-format +msgid "" +"Finds all tables in tiger and tiger_data schemas with key columns used in geocoder joins and filters that " +"are missing indexes on those columns and will output the SQL DDL to define " +"the index for those tables and then execute the generated script. This is a " +"helper function that adds new indexes needed to make queries faster that may " +"have been missing during the load process. This function is a companion to " +" that in addition to " +"generating the create index script, also executes it. It is called as part " +"of the update_geocode.sql upgrade script." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:406 +#, no-c-format +msgid "" +"SELECT install_missing_indexes();\n" +" install_missing_indexes\n" +"-------------------------\n" +" t" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:419 +#, no-c-format +msgid "Loader_Generate_Census_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:421 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform for the specified states " +"that will download Tiger census state tract, bg, and tabblocks data tables, " +"stage and load into tiger_data schema. Each state script " +"is returned as a separate record." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:426 +#, no-c-format +msgid "" +"setof text loader_generate_census_script text[] param_states text os" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:437 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform for the specified states " +"that will download Tiger data census state tract, block " +"groups bg, and tabblocks data tables, " +"stage and load into tiger_data schema. Each state script " +"is returned as a separate record." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:438 +#, no-c-format +msgid "" +"It uses unzip on Linux (7-zip on Windows by default) and wget to do the " +"downloading. It uses to load in the " +"data. Note the smallest unit it does is a whole state. It will only process " +"the files in the staging and temp folders." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:440 extras_tigergeocoder.xml:498 +#, no-c-format +msgid "" +"It uses the following control tables to control the process and different OS " +"shell syntax variations." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:444 extras_tigergeocoder.xml:502 +#: extras_tigergeocoder.xml:558 +#, no-c-format +msgid "" +"loader_variables keeps track of various variables such as " +"census site, year, data and staging schemas" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:447 extras_tigergeocoder.xml:505 +#, no-c-format +msgid "" +"loader_platform profiles of various platforms and where " +"the various executables are located. Comes with windows and linux. More can " +"be added." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:450 extras_tigergeocoder.xml:508 +#: extras_tigergeocoder.xml:564 +#, no-c-format +msgid "" +"loader_lookuptables each record defines a kind of table " +"(state, county), whether to process records in it and how to load them in. " +"Defines the steps to import data, stage data, add, removes columns, indexes, " +"and constraints for each. Each table is prefixed with the state and inherits " +"from a table in the tiger schema. e.g. creates tiger_data.ma_faces which inherits from tiger.faces" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:454 +#, no-c-format +msgid "" +"includes this logic, but if you installed tiger geocoder prior to PostGIS " +"2.0.0 alpha5, you'll need to run this on the states you have already done to " +"get these additional tables." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:461 +#, no-c-format +msgid "" +"Generate script to load up data for select states in Windows shell script " +"format." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:462 +#, no-c-format +msgid "" +"SELECT loader_generate_census_script(ARRAY['MA'], 'windows');\n" +"-- result --\n" +"set STATEDIR=\"\\gisdata\\www2.census.gov\\geo\\pvs\\tiger2010st" +"\\25_Massachusetts\"\n" +"set TMPDIR=\\gisdata\\temp\\\n" +"set UNZIPTOOL=\"C:\\Program Files\\7-Zip\\7z.exe\"\n" +"set WGETTOOL=\"C:\\wget\\wget.exe\"\n" +"set PGBIN=C:\\projects\\pg\\pg91win\\bin\\\n" +"set PGPORT=5432\n" +"set PGHOST=localhost\n" +"set PGUSER=postgres\n" +"set PGPASSWORD=yourpasswordhere\n" +"set PGDATABASE=tiger_postgis20\n" +"set PSQL=\"%PGBIN%psql\"\n" +"set SHP2PGSQL=\"%PGBIN%shp2pgsql\"\n" +"cd \\gisdata\n" +"\n" +"%WGETTOOL% http://www2.census.gov/geo/pvs/tiger2010st/25_Massachusetts/25/ --" +"no-parent --relative --accept=*bg10.zip,*tract10.zip,*tabblock10.zip --" +"mirror --reject=html\n" +"del %TMPDIR%\\*.* /Q\n" +"%PSQL% -c \"DROP SCHEMA tiger_staging CASCADE;\"\n" +"%PSQL% -c \"CREATE SCHEMA tiger_staging;\"\n" +"cd %STATEDIR%\n" +"for /r %%z in (*.zip) do %UNZIPTOOL% e %%z -o%TMPDIR% \n" +"cd %TMPDIR% \n" +"%PSQL% -c \"CREATE TABLE tiger_data.MA_tract(CONSTRAINT pk_MA_tract PRIMARY " +"KEY (tract_id) ) INHERITS(tiger.tract); \" \n" +"%SHP2PGSQL% -c -s 4269 -g the_geom -W \"latin1\" tl_2010_25_tract10.dbf " +"tiger_staging.ma_tract10 | %PSQL%\n" +"%PSQL% -c \"ALTER TABLE tiger_staging.MA_tract10 RENAME geoid10 TO " +"tract_id; SELECT loader_load_staged_data(lower('MA_tract10'), lower" +"('MA_tract')); \"\n" +"%PSQL% -c \"CREATE INDEX tiger_data_MA_tract_the_geom_gist ON tiger_data." +"MA_tract USING gist(the_geom);\"\n" +"%PSQL% -c \"VACUUM ANALYZE tiger_data.MA_tract;\"\n" +"%PSQL% -c \"ALTER TABLE tiger_data.MA_tract ADD CONSTRAINT chk_statefp CHECK " +"(statefp = '25');\"\n" +":" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:463 extras_tigergeocoder.xml:521 +#, no-c-format +msgid "Generate sh script" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:464 +#, no-c-format +msgid "" +"STATEDIR=\"/gisdata/www2.census.gov/geo/pvs/tiger2010st/25_Massachusetts\" \n" +"TMPDIR=\"/gisdata/temp/\"\n" +"UNZIPTOOL=unzip\n" +"WGETTOOL=\"/usr/bin/wget\"\n" +"export PGBIN=/usr/pgsql-9.0/bin\n" +"export PGPORT=5432\n" +"export PGHOST=localhost\n" +"export PGUSER=postgres\n" +"export PGPASSWORD=yourpasswordhere\n" +"export PGDATABASE=geocoder\n" +"PSQL=${PGBIN}/psql\n" +"SHP2PGSQL=${PGBIN}/shp2pgsql\n" +"cd /gisdata\n" +"\n" +"wget http://www2.census.gov/geo/pvs/tiger2010st/25_Massachusetts/25/ --no-" +"parent --relative --accept=*bg10.zip,*tract10.zip,*tabblock10.zip --mirror --" +"reject=html\n" +"rm -f ${TMPDIR}/*.*\n" +"${PSQL} -c \"DROP SCHEMA tiger_staging CASCADE;\"\n" +"${PSQL} -c \"CREATE SCHEMA tiger_staging;\"\n" +"cd $STATEDIR\n" +"for z in *.zip; do $UNZIPTOOL -o -d $TMPDIR $z; done\n" +":\n" +":" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:477 +#, no-c-format +msgid "Loader_Generate_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:479 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform for the specified states " +"that will download Tiger data, stage and load into tiger_data schema. Each state script is returned as a separate record. Latest " +"version supports Tiger 2010 structural changes and also loads census tract, " +"block groups, and blocks tables." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:484 +#, no-c-format +msgid "" +"setof text loader_generate_script " +"text[] param_states " +"text os" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:495 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform for the specified states " +"that will download Tiger data, stage and load into tiger_data schema. Each state script is returned as a separate record." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:496 +#, no-c-format +msgid "" +"It uses unzip on Linux (7-zip on Windows by default) and wget to do the " +"downloading. It uses to load in the " +"data. Note the smallest unit it does is a whole state, but you can overwrite " +"this by downloading the files yourself. It will only process the files in " +"the staging and temp folders." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:511 +#, no-c-format +msgid "" +"Availability: 2.0.0 to support Tiger 2010 structured data and load census " +"tract (tract), block groups (bg), and blocks (tabblocks) tables ." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:519 +#, no-c-format +msgid "" +"Generate script to load up data for 2 states in Windows shell script format." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:520 +#, no-c-format +msgid "" +"SELECT loader_generate_script(ARRAY['MA','RI'], 'windows') AS result;\n" +"-- result --\n" +"set STATEDIR=\"\\gisdata\\www2.census.gov\\geo\\pvs\\tiger2010st" +"\\44_Rhode_Island\"\n" +"set TMPDIR=\\gisdata\\temp\\\n" +"set UNZIPTOOL=\"C:\\Program Files\\7-Zip\\7z.exe\"\n" +"set WGETTOOL=\"C:\\wget\\wget.exe\"\n" +"set PGBIN=C:\\Program Files\\PostgreSQL\\8.4\\bin\\\n" +"set PGPORT=5432\n" +"set PGHOST=localhost\n" +"set PGUSER=postgres\n" +"set PGPASSWORD=yourpasswordhere\n" +"set PGDATABASE=geocoder\n" +"set PSQL=\"%PGBIN%psql\"\n" +"set SHP2PGSQL=\"%PGBIN%shp2pgsql\"\n" +"\n" +"%WGETTOOL% http://www2.census.gov/geo/pvs/tiger2010st/44_Rhode_Island/ --no-" +"parent --relative --recursive --level=2 --accept=zip,txt --mirror --" +"reject=html\n" +":\n" +":" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:522 +#, no-c-format +msgid "" +"SELECT loader_generate_script(ARRAY['MA','RI'], 'sh') AS result;\n" +"-- result --\n" +"STATEDIR=\"/gisdata/www2.census.gov/geo/pvs/tiger2010st/44_Rhode_Island\" \n" +"TMPDIR=\"/gisdata/temp/\"\n" +"UNZIPTOOL=unzip\n" +"PGPORT=5432\n" +"PGHOST=localhost\n" +"PGUSER=postgres\n" +"PGPASSWORD=yourpasswordhere\n" +"PGDATABASE=geocoder\n" +"PSQL=psql\n" +"SHP2PGSQ=shp2pgsql\n" +"\n" +"wget http://www2.census.gov/geo/pvs/tiger2010st/44_Rhode_Island/ --no-parent " +"--relative --recursive --level=2 --accept=zip,txt --mirror --reject=html\n" +":\n" +":" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:535 +#, no-c-format +msgid "Loader_Generate_Nation_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:537 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform that loads in the county " +"and state lookup tables." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:542 +#, no-c-format +msgid "" +"text loader_generate_nation_script " +"text os" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:552 +#, no-c-format +msgid "" +"Generates a shell script for the specified platform that loads in the " +"county_all, county_all_lookup, " +"state_all tables into tiger_data " +"schema. These inherit respectively from the county, " +"county_lookup, state tables in " +"tiger schema." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:553 +#, no-c-format +msgid "" +"It uses unzip on Linux (7-zip on Windows by default) and wget to do the " +"downloading. It uses to load in the data." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:554 +#, no-c-format +msgid "" +"It uses the following control tables tiger.loader_platform, tiger.loader_variables, and tiger." +"loader_lookuptables to control the process and different OS shell " +"syntax variations." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:561 +#, no-c-format +msgid "" +"loader_platform profiles of various platforms and where " +"the various executables are located. Comes with windows and linux/unix. More " +"can be added." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:568 +#, no-c-format +msgid "" +"If you were running tiger_2010 version and you want to " +"reload as state with tiger_2011, you'll need to for the " +"very first load generate and run drop statements before you run this script." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:574 +#, no-c-format +msgid "Generate script script to load nation data Windows." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:575 +#, no-c-format +msgid "SELECT loader_generate_nation_script('windows');" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:576 +#, no-c-format +msgid "Generate script to load up data for Linux/Unix systems." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:577 +#, no-c-format +msgid "SELECT loader_generate_nation_script('sh');" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:589 +#, no-c-format +msgid "Missing_Indexes_Generate_Script" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:591 +#, no-c-format +msgid "" +"Finds all tables with key columns used in geocoder joins that are missing " +"indexes on those columns and will output the SQL DDL to define the index for " +"those tables." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:597 +#, no-c-format +msgid "" +"text Missing_Indexes_Generate_Script " +"" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:607 +#, no-c-format +msgid "" +"Finds all tables in tiger and tiger_data schemas with key columns used in geocoder joins that are missing " +"indexes on those columns and will output the SQL DDL to define the index for " +"those tables. This is a helper function that adds new indexes needed to make " +"queries faster that may have been missing during the load process. As the " +"geocoder is improved, this function will be updated to accommodate new " +"indexes being used. If this function outputs nothing, it means all your " +"tables have what we think are the key indexes already in place." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:621 +#, no-c-format +msgid "" +"SELECT missing_indexes_generate_script();\n" +"-- output: This was run on a database that was created before many " +"corrections were made to the loading script ---\n" +"CREATE INDEX idx_tiger_county_countyfp ON tiger.county USING btree" +"(countyfp);\n" +"CREATE INDEX idx_tiger_cousub_countyfp ON tiger.cousub USING btree" +"(countyfp);\n" +"CREATE INDEX idx_tiger_edges_tfidr ON tiger.edges USING btree(tfidr);\n" +"CREATE INDEX idx_tiger_edges_tfidl ON tiger.edges USING btree(tfidl);\n" +"CREATE INDEX idx_tiger_zip_lookup_all_zip ON tiger.zip_lookup_all USING btree" +"(zip);\n" +"CREATE INDEX idx_tiger_data_ma_county_countyfp ON tiger_data.ma_county USING " +"btree(countyfp);\n" +"CREATE INDEX idx_tiger_data_ma_cousub_countyfp ON tiger_data.ma_cousub USING " +"btree(countyfp);\n" +"CREATE INDEX idx_tiger_data_ma_edges_countyfp ON tiger_data.ma_edges USING " +"btree(countyfp);\n" +"CREATE INDEX idx_tiger_data_ma_faces_countyfp ON tiger_data.ma_faces USING " +"btree(countyfp);" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:628 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:634 +#, no-c-format +msgid "Normalize_Address" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:636 +#, no-c-format +msgid "" +"Given a textual street address, returns a composite norm_addy type that has road suffix, prefix and type standardized, street, " +"streetname etc. broken into separate fields. This function will work with " +"just the lookup data packaged with the tiger_geocoder (no need for tiger " +"census data)." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:642 +#, no-c-format +msgid "" +"norm_addy normalize_address " +"varchar in_address" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:652 +#, no-c-format +msgid "" +"Given a textual street address, returns a composite norm_addy type that has road suffix, prefix and type standardized, street, " +"streetname etc. broken into separate fields. This is the first step in the " +"geocoding process to get all addresses into normalized postal form. No other " +"data is required aside from what is packaged with the geocoder." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:654 +#, no-c-format +msgid "" +"This function just uses the various direction/state/suffix lookup tables " +"preloaded with the tiger_geocoder and located in the tiger schema, so it doesn't need you to download tiger census data or any " +"other additional data to make use of it. You may find the need to add more " +"abbreviations or alternative namings to the various lookup tables in the " +"tiger schema." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:656 +#, no-c-format +msgid "" +"It uses various control lookup tables located in tiger " +"schema to normalize the input address." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:657 +#, no-c-format +msgid "" +"Fields in the norm_addy type object returned by this " +"function in this order where () indicates a field required by the geocoder, " +"[] indicates an optional field:" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:658 +#, no-c-format +msgid "" +"(address) [predirAbbrev] (streetName) [streetTypeAbbrev] [postdirAbbrev] " +"[internal] [location] [stateAbbrev] [zip]" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:661 +#, no-c-format +msgid "address is an integer: The street number" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:664 +#, no-c-format +msgid "" +"predirAbbrev is varchar: Directional prefix of road such " +"as N, S, E, W etc. These are controlled using the direction_lookup table." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:667 +#, no-c-format +msgid "streetName varchar" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:670 +#, no-c-format +msgid "" +"streetTypeAbbrev varchar abbreviated version of street " +"type: e.g. St, Ave, Cir. These are controlled using the " +"street_type_lookup table." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:673 +#, no-c-format +msgid "" +"postdirAbbrev varchar abbreviated directional suffice of " +"road N, S, E, W etc. These are controlled using the " +"direction_lookup table." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:676 +#, no-c-format +msgid "" +"internal varchar internal address such as an apartment or " +"suite number." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:679 +#, no-c-format +msgid "" +"location varchar usually a city or governing province." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:682 +#, no-c-format +msgid "" +"stateAbbrev varchar two character US State. e.g MA, NY, " +"MI. These are controlled by the state_lookup table." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:685 +#, no-c-format +msgid "zip varchar 5-digit zipcode. e.g. 02109." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:688 +#, no-c-format +msgid "" +"parsed boolean - denotes if addess was formed from " +"normalize process. The normalize_address function sets this to true before " +"returning the address." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:697 +#, no-c-format +msgid "" +"Output select fields. Use if you want a " +"pretty textual output." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:698 +#, no-c-format +msgid "" +"SELECT address As orig, (g.na).streetname, (g.na).streettypeabbrev\n" +" FROM (SELECT address, normalize_address(address) As na\n" +" FROM addresses_to_geocode) As g;\n" +" \n" +" orig | streetname | " +"streettypeabbrev \n" +"-----------------------------------------------------+---------------" +"+------------------\n" +" 28 Capen Street, Medford, MA | Capen | St\n" +" 124 Mount Auburn St, Cambridge, Massachusetts 02138 | Mount Auburn | St\n" +" 950 Main Street, Worcester, MA 01610 | Main | St\n" +" 529 Main Street, Boston MA, 02129 | Main | St\n" +" 77 Massachusetts Avenue, Cambridge, MA 02139 | Massachusetts | Ave\n" +" 25 Wizard of Oz, Walaford, KS 99912323 | Wizard of Oz |" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:707 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:713 +#, no-c-format +msgid "Pprint_Addy" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:715 +#, no-c-format +msgid "" +"Given a norm_addy composite type object, returns a pretty " +"print representation of it. Usually used in conjunction with " +"normalize_address." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:720 +#, no-c-format +msgid "" +"varchar pprint_addy " +"norm_addy in_addy" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:730 +#, no-c-format +msgid "" +"Given a norm_addy composite type object, returns a pretty " +"print representation of it. No other data is required aside from what is " +"packaged with the geocoder." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:731 +#, no-c-format +msgid "Usually used in conjunction with ." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:739 +#, no-c-format +msgid "Pretty print a single address" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:740 +#, no-c-format +msgid "" +"SELECT pprint_addy(normalize_address('202 East Fremont Street, Las Vegas, " +"Nevada 89101')) As pretty_address;\n" +" pretty_address\n" +"---------------------------------------\n" +" 202 E Fremont St, Las Vegas, NV 89101" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:742 +#, no-c-format +msgid "Pretty print address a table of addresses" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:743 +#, no-c-format +msgid "" +"SELECT address As orig, pprint_addy(normalize_address(address)) As " +"pretty_address\n" +" FROM addresses_to_geocode;\n" +" \n" +" orig | " +"pretty_address\n" +"-----------------------------------------------------" +"+-------------------------------------------\n" +" 529 Main Street, Boston MA, 02129 | 529 Main St, Boston " +"MA, 02129\n" +" 77 Massachusetts Avenue, Cambridge, MA 02139 | 77 Massachusetts Ave, " +"Cambridge, MA 02139\n" +" 28 Capen Street, Medford, MA | 28 Capen St, Medford, " +"MA\n" +" 124 Mount Auburn St, Cambridge, Massachusetts 02138 | 124 Mount Auburn St, " +"Cambridge, MA 02138\n" +" 950 Main Street, Worcester, MA 01610 | 950 Main St, " +"Worcester, MA 01610" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:756 +#, no-c-format +msgid "Reverse_Geocode" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:758 +#, no-c-format +msgid "" +"Takes a geometry point in a known spatial ref sys and returns a record " +"containing an array of theoretically possible addresses and an array of " +"cross streets. If include_strnum_range = true, includes the street range in " +"the cross streets." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:763 +#, no-c-format +msgid "" +"record Reverse_Geocode " +"geometry pt " +"boolean " +"include_strnum_range=false " +"geometry[] OUT intpt norm_addy[] OUT addy varchar[] OUT " +"street" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:777 +#, no-c-format +msgid "" +"Takes a geometry point in a known spatial ref and returns a record " +"containing an array of theoretically possible addresses and an array of " +"cross streets. If include_strnum_range = true, includes the street range in " +"the cross streets. include_strnum_range defaults to false if not passed in. " +"Addresses are sorted according to which road a point is closest to so first " +"address is most likely the right one." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:780 +#, no-c-format +msgid "" +"Why do we say theoretical instead of actual addresses. The Tiger data " +"doesn't have real addresses, but just street ranges. As such the theoretical " +"address is an interpolated address based on the street ranges. Like for " +"example interpolating one of my addresses returns a 26 Court St. and 26 " +"Court Sq., though there is no such place as 26 Court Sq. This is because a " +"point may be at a corner of 2 streets and thus the logic interpolates along " +"both streets. The logic also assumes addresses are equally spaced along a " +"street, which of course is wrong since you can have a municipal building " +"taking up a good chunk of the street range and the rest of the buildings are " +"clustered at the end." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:785 +#, no-c-format +msgid "" +"Note: Hmm this function relies on Tiger data. If you have not loaded data " +"covering the region of this point, then hmm you will get a record filled " +"with NULLS." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:786 +#, no-c-format +msgid "Returned elements of the record are as follows:" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:789 +#, no-c-format +msgid "" +"intpt is an array of points: These are the center line " +"points on the street closest to the input point. There are as many points as " +"there are addresses." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:792 +#, no-c-format +msgid "" +"addy is an array of norm_addy (normalized addresses): " +"These are an array of possible addresses that fit the input point. The first " +"one in the array is most likely. Generally there should be only one, except " +"in the case when a point is at the corner of 2 or 3 streets, or the point is " +"somewhere on the road and not off to the side." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:796 +#, no-c-format +msgid "" +"street an array of varchar: These are cross streets (or " +"the street) (streets that intersect or are the street the point is projected " +"to be on)." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:807 +#, no-c-format +msgid "" +"Example of a point at the corner of two streets, but closest to one. This is " +"approximate location of MIT: 77 Massachusetts Ave, Cambridge, MA 02139 Note " +"that although we don't have 3 streets, PostgreSQL will just return null for " +"entries above our upper bound so safe to use. This includes street ranges" +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:809 +#, no-c-format +msgid "" +"SELECT pprint_addy(r.addy[1]) As st1, pprint_addy(r.addy[2]) As st2, " +"pprint_addy(r.addy[3]) As st3, \n" +" array_to_string(r.street, ',') As cross_streets \n" +" FROM reverse_geocode(ST_GeomFromText('POINT(-71.093902 " +"42.359446)',4269),true) As r;\n" +" \n" +" result\n" +" ------\n" +" st1 | st2 | st3 | " +"cross_streets\n" +"-------------------------------------------+-----+-----" +"+----------------------------------------------\n" +" 67 Massachusetts Ave, Cambridge, MA 02139 | | | 67 - 127 " +"Massachusetts Ave,32 - 88 Vassar St" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:811 +#, no-c-format +msgid "" +"Here we choose not to include the address ranges for the cross streets and " +"picked a location really really close to a corner of 2 streets thus could be " +"known by two different addresses." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:813 +#, no-c-format +msgid "" +"SELECT pprint_addy(r.addy[1]) As st1, pprint_addy(r.addy[2]) As st2, \n" +"pprint_addy(r.addy[3]) As st3, array_to_string(r.street, ',') As cross_str\n" +"FROM reverse_geocode(ST_GeomFromText('POINT(-71.06941 42.34225)',4269)) As " +"r;\n" +"\n" +"result\n" +"--------\n" +" st1 | st2 | st3 | " +"cross_str\n" +"---------------------------------+---------------------------------+-----" +"+------------------------\n" +" 5 Bradford St, Boston, MA 02118 | 49 Waltham St, Boston, MA 02118 | | " +"Waltham St" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:815 +#, no-c-format +msgid "" +"For this one we reuse our geocoded example from " +"and we only want the primary address and at most 2 cross streets." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:816 +#, no-c-format +msgid "" +"SELECT actual_addr, lon, lat, pprint_addy((rg).addy[1]) As int_addr1, \n" +" (rg).street[1] As cross1, (rg).street[2] As cross2\n" +"FROM (SELECT address As actual_addr, lon, lat,\n" +" reverse_geocode( ST_SetSRID(ST_Point(lon,lat),4326) ) As rg\n" +" FROM addresses_to_geocode WHERE rating > -1) As foo;\n" +"\n" +" actual_addr | lon | lat " +"| int_addr1 | cross1 | cross2 \n" +"-----------------------------------------------------+-----------+----------" +"+-------------------------------------------+-----------------+------------\n" +" 529 Main Street, Boston MA, 02129 | -71.07181 | 42.38359 " +"| 527 Main St, Boston, MA 02129 | Medford St | \n" +" 77 Massachusetts Avenue, Cambridge, MA 02139 | -71.09428 | 42.35988 " +"| 77 Massachusetts Ave, Cambridge, MA 02139 | Vassar St | \n" +" 26 Capen Street, Medford, MA | -71.12377 | 42.41101 " +"| 9 Edison Ave, Medford, MA 02155 | Capen St | Tesla Ave\n" +" 124 Mount Auburn St, Cambridge, Massachusetts 02138 | -71.12304 | 42.37328 " +"| 3 University Rd, Cambridge, MA 02138 | Mount Auburn St | \n" +" 950 Main Street, Worcester, MA 01610 | -71.82368 | 42.24956 " +"| 3 Maywood St, Worcester, MA 01603 | Main St | Maywood Pl" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:823 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:829 +#, no-c-format +msgid "Topology_Load_Tiger" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:831 +#, no-c-format +msgid "" +"Loads a defined region of tiger data into a PostGIS Topology and " +"transforming the tiger data to spatial reference of the topology and " +"snapping to the precision tolerance of the topology." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:837 +#, no-c-format +msgid "" +"text Topology_Load_Tiger " +"varchar topo_name " +"varchar region_type varchar region_id" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:849 +#, no-c-format +msgid "" +"Loads a defined region of tiger data into a PostGIS Topology. The faces, " +"nodes and edges are transformed to the spatial reference system of the " +"target topology and points are snapped to the tolerance of the target " +"topology. The created faces, nodes, edges maintain the same ids as the " +"original Tiger data faces, nodes, edges so that datasets can be in the " +"future be more easily reconciled with tiger data. Returns summary details " +"about the process." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:852 +#, no-c-format +msgid "" +"This would be useful for example for redistricting data where you require " +"the newly formed polygons to follow the center lines of streets and for the " +"resulting polygons not to overlap." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:854 +#, no-c-format +msgid "" +"This function relies on Tiger data as well as the installation of the " +"PostGIS topology module. For more information, refer to and . If you " +"have not loaded data covering the region of interest, then no topology " +"records will be created. This function will also fail if you have not " +"created a topology using the topology functions." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:856 +#, no-c-format +msgid "" +"Most topology validation errors are a result of tolerance issues where after " +"transformation the edges points don't quite line up or overlap. To remedy " +"the situation you may want to increase or lower the precision if you get " +"topology validation failures." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:858 +#, no-c-format +msgid "Required arguments:" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:861 +#, no-c-format +msgid "" +"topo_name The name of an existing PostGIS topology to " +"load data into." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:864 +#, no-c-format +msgid "" +"region_type The type of bounding region. Currently only " +"place and county are supported. Plan " +"is to have several more. This is the table to look into to define the region " +"bounds. e.g tiger.place, tiger.county" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:867 +#, no-c-format +msgid "" +"region_id This is what TIGER calls the geoid. It is the " +"unique identifier of the region in the table. For place it is the " +"plcidfp column in tiger.place. For " +"county it is the cntyidfp column in tiger." +"county" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:876 +#, no-c-format +msgid "Example: Boston, Massachusetts Topology" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:877 +#, no-c-format +msgid "" +"Create a topology for Boston, Massachusetts in Mass State Plane Feet (2249) " +"with tolerance 0.25 feet and then load in Boston city tiger faces, edges, " +"nodes." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:879 +#, no-c-format +msgid "" +"SELECT topology.CreateTopology('topo_boston', 2249, 0.25);\n" +"createtopology\n" +"--------------\n" +" 15\n" +"-- 60,902 ms ~ 1 minute on windows 7 desktop running 9.1 (with 5 states " +"tiger data loaded) \n" +"SELECT tiger.topology_load_tiger('topo_boston', 'place', '2507000'); \n" +"-- topology_loader_tiger --\n" +"29722 edges holding in temporary. 11108 faces added. 1875 edges of faces " +"added. 20576 nodes added. \n" +"19962 nodes contained in a face. 0 edge start end corrected. 31597 edges " +"added. \n" +" \n" +"-- 41 ms --\n" +"SELECT topology.TopologySummary('topo_boston');\n" +" -- topologysummary--\n" +"Topology topo_boston (15), SRID 2249, precision 0.25\n" +"20576 nodes, 31597 edges, 11109 faces, 0 topogeoms in 0 layers\n" +"\n" +"-- 28,797 ms to validate yeh returned no errors --\n" +"SELECT * FROM \n" +" topology.ValidateTopology('topo_boston'); \n" +" \n" +" error | id1 | id2\n" +"-------------------+----------+-----------" +msgstr "" + +#. Tag: title +#: extras_tigergeocoder.xml:883 +#, no-c-format +msgid "Example: Suffolk, Massachusetts Topology" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:884 +#, no-c-format +msgid "" +"Create a topology for Suffolk, Massachusetts in Mass State Plane Meters " +"(26986) with tolerance 0.25 meters and then load in Suffolk county tiger " +"faces, edges, nodes." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:886 +#, no-c-format +msgid "" +"SELECT topology.CreateTopology('topo_suffolk', 26986, 0.25);\n" +"-- this took 56,275 ms ~ 1 minute on Windows 7 32-bit with 5 states of tiger " +"loaded\n" +"-- must have been warmed up after loading boston\n" +"SELECT tiger.topology_load_tiger('topo_suffolk', 'county', '25025'); \n" +"-- topology_loader_tiger --\n" +" 36003 edges holding in temporary. 13518 faces added. 2172 edges of faces " +"added. \n" +" 24761 nodes added. 24075 nodes contained in a face. 0 edge start end " +"corrected. 38175 edges added. \n" +"-- 31 ms --\n" +"SELECT topology.TopologySummary('topo_suffolk');\n" +" -- topologysummary--\n" +" Topology topo_suffolk (14), SRID 26986, precision 0.25\n" +"24761 nodes, 38175 edges, 13519 faces, 0 topogeoms in 0 layers\n" +"\n" +"-- 33,606 ms to validate --\n" +"SELECT * FROM \n" +" topology.ValidateTopology('topo_suffolk'); \n" +" \n" +" error | id1 | id2\n" +"-------------------+----------+-----------\n" +" coincident nodes | 81045651 | 81064553\n" +" edge crosses node | 81045651 | 85737793\n" +" edge crosses node | 81045651 | 85742215\n" +" edge crosses node | 81045651 | 620628939\n" +" edge crosses node | 81064553 | 85697815\n" +" edge crosses node | 81064553 | 85728168\n" +" edge crosses node | 81064553 | 85733413" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:890 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: extras_tigergeocoder.xml:896 +#, no-c-format +msgid "Set_Geocode_Setting" +msgstr "" + +#. Tag: refpurpose +#: extras_tigergeocoder.xml:898 +#, no-c-format +msgid "Sets a setting that affects behavior of geocoder functions." +msgstr "" + +#. Tag: funcprototype +#: extras_tigergeocoder.xml:903 +#, no-c-format +msgid "" +"text Set_Geocode_Setting " +"text setting_name " +"text setting_value" +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:914 +#, no-c-format +msgid "" +"Sets value of specific setting stored in tiger.geocode_settings table. Settings allow you to toggle debugging of functions. Later " +"plans will be to control rating with settings. Current list of settings are " +"listed in ." +msgstr "" + +#. Tag: para +#: extras_tigergeocoder.xml:923 +#, no-c-format +msgid "" +"If you run when this function is true, the " +"NOTICE log will output timing and queries." +msgstr "" + +#. Tag: programlisting +#: extras_tigergeocoder.xml:924 +#, no-c-format +msgid "" +"SELECT set_geocode_setting('debug_geocode_address', 'true') As result;\n" +"result\n" +"---------\n" +"true" +msgstr "" diff --git a/doc/po/it_IT/extras_topology.xml.po b/doc/po/it_IT/extras_topology.xml.po new file mode 100644 index 000000000..7c6790e2b --- /dev/null +++ b/doc/po/it_IT/extras_topology.xml.po @@ -0,0 +1,3792 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: extras_topology.xml:3 +#, no-c-format +msgid "Topology" +msgstr "" + +#. Tag: para +#: extras_topology.xml:4 +#, no-c-format +msgid "" +"The PostGIS Topology types and functions are used to manage topological " +"objects such as faces, edges and nodes." +msgstr "" + +#. Tag: para +#: extras_topology.xml:5 +#, no-c-format +msgid "" +"Sandro Santilli's presentation at PostGIS Day Paris 2011 conference gives a " +"good synopsis of PostGIS Topology and where it is headed Topology with PostGIS 2.0 slide deck." +msgstr "" + +#. Tag: para +#: extras_topology.xml:6 +#, no-c-format +msgid "" +"Vincent Picavet provides a good synopsis and overview of what is Topology, " +"how is it used, and various FOSS4G tools that support it in State of the art of FOSS4G " +"for topology and network analysis." +msgstr "" + +#. Tag: para +#: extras_topology.xml:7 +#, no-c-format +msgid "" +"An example of a topologically based GIS database is the US Census Topologically " +"Integrated Geographic Encoding and Reference System (TIGER) " +"database. If you want to experiment with PostGIS topology and need some " +"data, check out ." +msgstr "" + +#. Tag: para +#: extras_topology.xml:8 +#, no-c-format +msgid "" +"The PostGIS topology module has existed in prior versions of PostGIS but was " +"never part of the Official PostGIS documentation. In PostGIS 2.0.0 major " +"cleanup is going on to remove use of all deprecated functions in it, fix " +"known usability issues, better document the features and functions, add new " +"functions, and enhance to closer conform to SQL-MM standards." +msgstr "" + +#. Tag: para +#: extras_topology.xml:10 +#, no-c-format +msgid "" +"Details of this project can be found at PostGIS Topology Wiki" +msgstr "" + +#. Tag: para +#: extras_topology.xml:11 +#, no-c-format +msgid "" +"All functions and tables associated with this module are installed in a " +"schema called topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:12 +#, no-c-format +msgid "" +"Functions that are defined in SQL/MM standard are prefixed with ST_ and " +"functions specific to PostGIS are not prefixed." +msgstr "" + +#. Tag: para +#: extras_topology.xml:13 +#, no-c-format +msgid "" +"To build PostGIS 2.0 with topology support, compile with the --with-topology " +"option as described in . Some " +"functions depend on GEOS 3.3+ so you should compile with GEOS 3.3+ to fully " +"utilize the topology support." +msgstr "" + +#. Tag: para +#: extras_topology.xml:18 +#, no-c-format +msgid "" +"This section lists the PostgreSQL data types installed by PostGIS Topology. " +"Note we describe the casting behavior of these which is very important " +"especially when designing your own functions." +msgstr "" + +#. Tag: title +#: extras_topology.xml:23 +#, no-c-format +msgid "Topology Types" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:27 +#, no-c-format +msgid "getfaceedges_returntype" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:28 +#, no-c-format +msgid "" +"A composite type that consists of a sequence number and edge number. This is " +"the return type for ST_GetFaceEdges" +msgstr "" + +#. Tag: title +#: extras_topology.xml:31 extras_topology.xml:50 extras_topology.xml:99 +#: extras_topology.xml:138 extras_topology.xml:159 extras_topology.xml:233 +#: extras_topology.xml:280 extras_topology.xml:321 extras_topology.xml:360 +#: extras_topology.xml:397 extras_topology.xml:467 extras_topology.xml:515 +#: extras_topology.xml:563 extras_topology.xml:607 extras_topology.xml:655 +#: extras_topology.xml:701 extras_topology.xml:747 extras_topology.xml:802 +#: extras_topology.xml:848 extras_topology.xml:895 extras_topology.xml:952 +#: extras_topology.xml:1010 extras_topology.xml:1082 extras_topology.xml:1150 +#: extras_topology.xml:1216 extras_topology.xml:1270 extras_topology.xml:1318 +#: extras_topology.xml:1365 extras_topology.xml:1408 extras_topology.xml:1462 +#: extras_topology.xml:1556 extras_topology.xml:1651 extras_topology.xml:1693 +#: extras_topology.xml:1735 extras_topology.xml:1778 extras_topology.xml:1827 +#: extras_topology.xml:1871 extras_topology.xml:1923 extras_topology.xml:1981 +#: extras_topology.xml:2022 extras_topology.xml:2079 extras_topology.xml:2125 +#: extras_topology.xml:2216 extras_topology.xml:2278 extras_topology.xml:2326 +#: extras_topology.xml:2374 extras_topology.xml:2422 extras_topology.xml:2516 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: extras_topology.xml:32 +#, no-c-format +msgid "" +"A composite type that consists of a sequence number and edge number. This is " +"the return type for ST_GetFaceEdges function." +msgstr "" + +#. Tag: para +#: extras_topology.xml:35 +#, no-c-format +msgid "" +"sequence is an integer: Refers to a topology defined in " +"the topology.topology table which defines the topology schema and srid." +msgstr "" + +#. Tag: para +#: extras_topology.xml:38 +#, no-c-format +msgid "edge is an integer: The identifier of an edge." +msgstr "" + +#. Tag: refname +#: extras_topology.xml:46 +#, no-c-format +msgid "topogeometry" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:47 +#, no-c-format +msgid "" +"A composite type that refers to a topology geometry in a specific topology, " +"layer, having specific type (1:[multi]point, 2:[multi]line, 3:[multi]poly, 4:" +"collection) with specific identifier id in the topology. The id uniquely " +"defines the topogeometry in the topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:51 +#, no-c-format +msgid "" +"A composite type that refers to a topology geometry in a specific topology, " +"layer, having specific type with specific id. The elements of a topogeometry " +"are the properties: topology_id,layer_id,id integer,type integer." +msgstr "" + +#. Tag: para +#: extras_topology.xml:54 +#, no-c-format +msgid "" +"topology_id is an integer: Refers to a topology defined " +"in the topology.topology table which defines the topology schema and srid." +msgstr "" + +#. Tag: para +#: extras_topology.xml:57 +#, no-c-format +msgid "" +"layer_id is an integer: The layer_id in the layers table " +"that hte topogeometry belongs to. The combination of topology_id, layer_id " +"provides a unique reference in the topology.layers table." +msgstr "" + +#. Tag: para +#: extras_topology.xml:60 +#, no-c-format +msgid "" +"type integer between 1 - 4 that defines the geometry " +"type: 1:[multi]point, 2:[multi]line, 3:[multi]poly, 4:collection" +msgstr "" + +#. Tag: para +#: extras_topology.xml:63 +#, no-c-format +msgid "" +"id is an integer: The id is the autogenerated sequence " +"number that uniquely defines the topogeometry in the respective topology." +msgstr "" + +#. Tag: title +#: extras_topology.xml:69 +#, no-c-format +msgid "Casting Behavior" +msgstr "" + +#. Tag: para +#: extras_topology.xml:70 +#, no-c-format +msgid "" +"This section lists the automatic as well as explicit casts allowed for this " +"data type" +msgstr "" + +#. Tag: entry +#: extras_topology.xml:75 +#, no-c-format +msgid "Cast To" +msgstr "" + +#. Tag: entry +#: extras_topology.xml:76 +#, no-c-format +msgid "Behavior" +msgstr "" + +#. Tag: entry +#: extras_topology.xml:79 +#, no-c-format +msgid "geometry" +msgstr "" + +#. Tag: entry +#: extras_topology.xml:80 +#, no-c-format +msgid "automatic" +msgstr "" + +#. Tag: title +#: extras_topology.xml:88 extras_topology.xml:116 extras_topology.xml:148 +#: extras_topology.xml:170 extras_topology.xml:258 extras_topology.xml:298 +#: extras_topology.xml:338 extras_topology.xml:375 extras_topology.xml:416 +#: extras_topology.xml:492 extras_topology.xml:541 extras_topology.xml:580 +#: extras_topology.xml:629 extras_topology.xml:670 extras_topology.xml:716 +#: extras_topology.xml:762 extras_topology.xml:823 extras_topology.xml:870 +#: extras_topology.xml:926 extras_topology.xml:983 extras_topology.xml:1055 +#: extras_topology.xml:1123 extras_topology.xml:1190 extras_topology.xml:1238 +#: extras_topology.xml:1287 extras_topology.xml:1337 extras_topology.xml:1385 +#: extras_topology.xml:1434 extras_topology.xml:1480 extras_topology.xml:1534 +#: extras_topology.xml:1578 extras_topology.xml:1628 extras_topology.xml:1666 +#: extras_topology.xml:1708 extras_topology.xml:1750 extras_topology.xml:1800 +#: extras_topology.xml:1845 extras_topology.xml:1895 extras_topology.xml:1948 +#: extras_topology.xml:1997 extras_topology.xml:2056 extras_topology.xml:2099 +#: extras_topology.xml:2174 extras_topology.xml:2246 extras_topology.xml:2304 +#: extras_topology.xml:2340 extras_topology.xml:2393 extras_topology.xml:2440 +#: extras_topology.xml:2548 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:95 +#, no-c-format +msgid "validatetopology_returntype" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:96 +#, no-c-format +msgid "" +"A composite type that consists of an error message and id1 and id2 to denote " +"location of error. This is the return type for ValidateTopology" +msgstr "" + +#. Tag: para +#: extras_topology.xml:100 +#, no-c-format +msgid "" +"A composite type that consists of an error message and two integers. The " +" function returns a set of these to " +"denote validation errors and the id1 and id2 to denote the ids of the " +"topology objects involved in the error." +msgstr "" + +#. Tag: para +#: extras_topology.xml:103 +#, no-c-format +msgid "error is varchar: Denotes type of error." +msgstr "" + +#. Tag: para +#: extras_topology.xml:104 +#, no-c-format +msgid "" +"Current error descriptors are: coincident nodes, edge crosses node, edge not " +"simple, edge end node geometry mis-match, edge start node geometry mismatch, " +"face overlaps face,face within face," +msgstr "" + +#. Tag: para +#: extras_topology.xml:107 +#, no-c-format +msgid "" +"id1 is an integer: Denotes identifier of edge / face / " +"nodes in error." +msgstr "" + +#. Tag: para +#: extras_topology.xml:110 +#, no-c-format +msgid "" +"id2 is an integer: For errors that involve 2 objects " +"denotes the secondary edge / or node" +msgstr "" + +#. Tag: para +#: extras_topology.xml:125 +#, no-c-format +msgid "" +"This section lists the PostgreSQL domains installed by PostGIS Topology. " +"Domains can be used like object types as return objects of functions or " +"table columns. The distinction between a domain and a type is that a domain " +"is an existing type with a check constraint bound to it." +msgstr "" + +#. Tag: title +#: extras_topology.xml:130 +#, no-c-format +msgid "Topology Domains" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:134 +#, no-c-format +msgid "TopoElement" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:135 +#, no-c-format +msgid "" +"An array of 2 integers generally used to identify a TopoGeometry component." +msgstr "" + +#. Tag: para +#: extras_topology.xml:139 +#, no-c-format +msgid "" +"An array of 2 integers used to represent the id and type of a topology " +"primitive or the id and layer of a TopoGeometry. Sets of such pairs are used " +"to define TopoGeometry objects (either simple or hierarchical)." +msgstr "" + +#. Tag: title +#: extras_topology.xml:142 extras_topology.xml:164 extras_topology.xml:251 +#: extras_topology.xml:291 extras_topology.xml:332 extras_topology.xml:370 +#: extras_topology.xml:410 extras_topology.xml:481 extras_topology.xml:531 +#: extras_topology.xml:574 extras_topology.xml:623 extras_topology.xml:816 +#: extras_topology.xml:863 extras_topology.xml:919 extras_topology.xml:976 +#: extras_topology.xml:1048 extras_topology.xml:1116 extras_topology.xml:1184 +#: extras_topology.xml:1232 extras_topology.xml:1379 extras_topology.xml:1428 +#: extras_topology.xml:1474 extras_topology.xml:1526 extras_topology.xml:1571 +#: extras_topology.xml:1620 extras_topology.xml:1660 extras_topology.xml:1702 +#: extras_topology.xml:1744 extras_topology.xml:1793 extras_topology.xml:1839 +#: extras_topology.xml:2050 extras_topology.xml:2093 extras_topology.xml:2168 +#: extras_topology.xml:2297 extras_topology.xml:2336 extras_topology.xml:2386 +#: extras_topology.xml:2433 extras_topology.xml:2539 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:143 +#, no-c-format +msgid "" +"SELECT ARRAY[1,2]::topology.topoelement;\n" +" te\n" +"-------\n" +" {1,2}" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:144 +#, no-c-format +msgid "" +"--Example of what happens when you try to case a 3 element array to " +"topoelement\n" +"-- NOTE: topoement has to be a 2 element array so fails dimension check\n" +"SELECT ARRAY[1,2,3]::topology.topoelement;\n" +"ERROR: value for domain topology.topoelement violates check constraint " +"\"dimensions\"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:155 +#, no-c-format +msgid "topoelementarray" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:156 +#, no-c-format +msgid "" +"An array of element_id,element_type values. a bidimensional array of " +"integers: '{{id,type}, {id,type}, ...}'" +msgstr "" + +#. Tag: para +#: extras_topology.xml:160 +#, no-c-format +msgid "" +"An array of 1 or more topoelements ( a bidimensional array of integers: " +"'{{id,type}, {id,type}, ...}'). So an array of 1 or more arrays each having " +"2 integers generally used to return an array of sets of element id and " +"element type of a topology relation." +msgstr "" + +#. Tag: para +#: extras_topology.xml:161 +#, no-c-format +msgid "" +"For types currrently only 3 types are supported: node=1, " +"edge=2, face=3" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:165 +#, no-c-format +msgid "" +"SELECT '{{1,2},{4,3}}'::topology.topoelementarray As tea;\n" +" tea\n" +"-------\n" +"{{1,2},{4,3}}\n" +"\n" +"-- more verbose equivalent --\n" +"SELECT ARRAY[ARRAY[1,2], ARRAY[4,3]]::topology.topoelementarray As tea;\n" +"\n" +" tea\n" +"-------\n" +"{{1,2},{4,3}}\n" +"\n" +"--using the array agg function packaged with topology --\n" +"SELECT topology.TopoElementArray_Agg(ARRAY[e,t]) As tea\n" +" FROM generate_series(1,4) As e CROSS JOIN generate_series(1,3) As t;\n" +" tea\n" +"--------------------------------------------------------------------------\n" +"{{1,1},{1,2},{1,3},{2,1},{2,2},{2,3},{3,1},{3,2},{3,3},{4,1},{4,2},{4,3}}" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:166 +#, no-c-format +msgid "" +"SELECT '{{1,2,4},{3,4,5}}'::topology.topoelementarray As tea;\n" +"ERROR: value for domain topology.topoelementarray violates check constraint " +"\"dimensions\"" +msgstr "" + +#. Tag: para +#: extras_topology.xml:171 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: para +#: extras_topology.xml:179 +#, no-c-format +msgid "" +"This section lists the Topology functions for building new Topology schemas, " +"validating topologies, and managing TopoGeometry Columns" +msgstr "" + +#. Tag: title +#: extras_topology.xml:182 +#, no-c-format +msgid "Topology and TopoGeometry Management" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:185 +#, no-c-format +msgid "AddTopoGeometryColumn" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:186 +#, no-c-format +msgid "" +"Adds a topogeometry column to an existing table, registers this new column " +"as a layer in topology.layer and returns the new layer_id." +msgstr "" + +#. Tag: funcsynopsis +#: extras_topology.xml:190 +#, no-c-format +msgid "" +" text AddTopoGeometryColumn varchar topology_name varchar " +"schema_name varchar table_name varchar column_name varchar " +" feature_type " +" text AddTopoGeometryColumn varchar topology_name varchar " +"schema_name varchar table_name varchar column_name varchar " +" feature_type " +"integer child_layer " +msgstr "" + +#. Tag: para +#: extras_topology.xml:235 +#, no-c-format +msgid "" +"Each TopoGeometry object belongs to a specific Layer of a specific Topology. " +"Before creating a TopoGeometry object you need to create its TopologyLayer. " +"A Topology Layer is an association of a feature-table with the topology. It " +"also contain type and hierarchy information. We create a layer using the " +"AddTopoGeometryColumn() function:" +msgstr "" + +#. Tag: para +#: extras_topology.xml:237 +#, no-c-format +msgid "" +"This function will both add the requested column to the table and add a " +"record to the topology.layer table with all the given info." +msgstr "" + +#. Tag: para +#: extras_topology.xml:238 +#, no-c-format +msgid "" +"If you don't specify [child_layer] (or set it to NULL) this layer would " +"contain Basic TopoGeometries (composed by primitive topology elements). " +"Otherwise this layer will contain hierarchical TopoGeometries (composed by " +"TopoGeometries from the child_layer)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:241 +#, no-c-format +msgid "" +"Once the layer is created (it's id is returned by the AddTopoGeometryColumn " +"function) you're ready to construct TopoGeometry objects in it" +msgstr "" + +#. Tag: para +#: extras_topology.xml:242 +#, no-c-format +msgid "" +"Valid feature_types are: POINT, LINE, POLYGON, COLLECTION" +msgstr "" + +#. Tag: para +#: extras_topology.xml:245 extras_topology.xml:286 extras_topology.xml:327 +#: extras_topology.xml:403 extras_topology.xml:476 extras_topology.xml:568 +#: extras_topology.xml:810 extras_topology.xml:857 extras_topology.xml:1225 +#: extras_topology.xml:1373 extras_topology.xml:1422 extras_topology.xml:1468 +#: extras_topology.xml:1655 extras_topology.xml:1739 extras_topology.xml:1833 +#: extras_topology.xml:2224 extras_topology.xml:2381 extras_topology.xml:2428 +#, no-c-format +msgid "Availability: 1.?" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:252 +#, no-c-format +msgid "" +"-- Note for this example we created our new table in the ma_topo schema \n" +"-- though we could have created it in a different schema -- in which case " +"topology_name and schema_name would be different \n" +"CREATE SCHEMA ma;\n" +"CREATE TABLE ma.parcels(gid serial, parcel_id varchar(20) PRIMARY KEY, " +"address text);\n" +"SELECT topology.AddTopoGeometryColumn('ma_topo', 'ma', 'parcels', 'topo', " +"'POLYGON');" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:253 +#, no-c-format +msgid "" +"CREATE SCHEMA ri;\n" +"CREATE TABLE ri.roads(gid serial PRIMARY KEY, road_name text);\n" +"SELECT topology.AddTopoGeometryColumn('ri_topo', 'ri', 'roads', 'topo', " +"'LINE');" +msgstr "" + +#. Tag: para +#: extras_topology.xml:260 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:265 +#, no-c-format +msgid "DropTopology" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:267 +#, no-c-format +msgid "" +"Use with caution: Drops a topology schema and deletes its reference from " +"topology.topology table and references to tables in that schema from the " +"geometry_columns table." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:272 +#, no-c-format +msgid "" +"integer DropTopology " +"varchar topology_schema_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:282 +#, no-c-format +msgid "" +"Drops a topology schema and deletes its reference from topology.topology " +"table and references to tables in that schema from the geometry_columns " +"table. This function should be USED WITH CAUTION, as it could destroy data " +"you care about. If the schema does not exist, it just removes reference " +"entries the named schema." +msgstr "" + +#. Tag: para +#: extras_topology.xml:292 +#, no-c-format +msgid "" +"Cascade drops the ma_topo schema and removes all references to it in " +"topology.topology and geometry_columns." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:293 +#, no-c-format +msgid "SELECT topology.DropTopology('ma_topo');" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:304 +#, no-c-format +msgid "DropTopoGeometryColumn" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:306 +#, no-c-format +msgid "" +"Drops the topogeometry column from the table named table_name in schema schema_name and unregisters the " +"columns from topology.layer table." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:311 +#, no-c-format +msgid "" +"text DropTopoGeometryColumn " +"varchar schema_name varchar table_name varchar column_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:323 +#, no-c-format +msgid "" +"Drops the topogeometry column from the table named table_name in schema schema_name and unregisters the " +"columns from topology.layer table. Returns summary of drop status. NOTE: it " +"first sets all values to NULL before dropping to bypass referential " +"integrity checks." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:333 +#, no-c-format +msgid "" +"SELECT topology.DropTopoGeometryColumn('ma_topo', 'parcel_topo', 'topo');" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:345 +#, no-c-format +msgid "TopologySummary" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:347 +#, no-c-format +msgid "" +"Takes a topology name and provides summary totals of types of objects in " +"topology" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:352 +#, no-c-format +msgid "" +"text TopologySummary " +"varchar topology_schema_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:362 +#, no-c-format +msgid "" +"Takes a topology name and provides summary totals of types of objects in " +"topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:365 extras_topology.xml:526 extras_topology.xml:664 +#: extras_topology.xml:710 extras_topology.xml:756 extras_topology.xml:1697 +#: extras_topology.xml:1992 extras_topology.xml:2045 extras_topology.xml:2163 +#: extras_topology.xml:2331 extras_topology.xml:2534 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:371 +#, no-c-format +msgid "" +"SELECT topology.topologysummary('city_data');\n" +" topologysummary \n" +"--------------------------------------------------------\n" +" Topology city_data (329), SRID 4326, precision: 0\n" +" 22 nodes, 24 edges, 10 faces, 29 topogeoms in 5 layers\n" +" Layer 1, type Polygonal (3), 9 topogeoms\n" +" Deploy: features.land_parcels.feature\n" +" Layer 2, type Puntal (1), 8 topogeoms\n" +" Deploy: features.traffic_signs.feature\n" +" Layer 3, type Lineal (2), 8 topogeoms\n" +" Deploy: features.city_streets.feature\n" +" Layer 4, type Polygonal (3), 3 topogeoms\n" +" Hierarchy level 1, child layer 1\n" +" Deploy: features.big_parcels.feature\n" +" Layer 5, type Puntal (1), 1 topogeoms\n" +" Hierarchy level 1, child layer 2\n" +" Deploy: features.big_signs.feature" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:382 +#, no-c-format +msgid "ValidateTopology" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:384 +#, no-c-format +msgid "" +"Returns a set of validatetopology_returntype objects detailing issues with " +"topology" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:389 +#, no-c-format +msgid "" +"setof validatetopology_returntype ValidateTopology varchar " +"topology_schema_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:399 +#, no-c-format +msgid "" +"Returns a set of objects " +"detailing issues with topology. Refer to for listing of possible errors." +msgstr "" + +#. Tag: para +#: extras_topology.xml:405 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 more efficient edge crossing detection and fixes for false " +"positives that were existent in prior versions." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:411 +#, no-c-format +msgid "" +"SELECT * FROM topology.ValidateTopology('ma_topo');\n" +" error | id1 | id2\n" +"-------------------+-----+-----\n" +"face without edges | 0 |" +msgstr "" + +#. Tag: para +#: extras_topology.xml:417 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: para +#: extras_topology.xml:425 +#, no-c-format +msgid "This section covers the topology functions for creating new topologies." +msgstr "" + +#. Tag: title +#: extras_topology.xml:428 +#, no-c-format +msgid "Topology Constructors" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:432 +#, no-c-format +msgid "CreateTopology" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:433 +#, no-c-format +msgid "" +"Creates a new topology schema and registers this new schema in the topology." +"topology table." +msgstr "" + +#. Tag: funcsynopsis +#: extras_topology.xml:437 +#, no-c-format +msgid "" +" integer CreateTopology varchar topology_schema_name integer " +"CreateTopology varchar topology_schema_name " +"integer srid integer CreateTopology varchar " +"topology_schema_name " +"integer srid " +"double precision tolerance integer " +"CreateTopology varchar topology_schema_name " +"integer srid " +"double precision tolerance boolean hasz " +msgstr "" + +#. Tag: para +#: extras_topology.xml:469 +#, no-c-format +msgid "" +"Creates a new schema with name topology_name consisting " +"of tables (edge_data,face," +"node, relation and registers this new " +"topology in the topology.topology table. It returns the id of the topology " +"in the topology table. The srid is the spatial reference identified as " +"defined in spatial_ref_sys table for that topology. Topologies must be " +"uniquely named. The tolerance is measured in the units of the spatial " +"reference system. If the tolerance is not specified defaults to 0." +msgstr "" + +#. Tag: para +#: extras_topology.xml:473 +#, no-c-format +msgid "" +"This is similar to the SQL/MM but a bit " +"more functional. hasz defaults to false if not specified." +msgstr "" + +#. Tag: para +#: extras_topology.xml:482 +#, no-c-format +msgid "" +"This example creates a new schema called ma_topo that will store edges, " +"faces, and relations in Massachusetts State Plane meters. The tolerance " +"represents 1/2 meter since the spatial reference system is a meter based " +"spatial reference system" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:484 +#, no-c-format +msgid "SELECT topology.CreateTopology('ma_topo',26986, 0.5);" +msgstr "" + +#. Tag: para +#: extras_topology.xml:486 +#, no-c-format +msgid "Create Rhode Island topology in State Plane ft" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:487 +#, no-c-format +msgid "" +"SELECT topology.CreateTopology('ri_topo',3438) As topoid;\n" +"topoid\n" +"------\n" +"2" +msgstr "" + +#. Tag: para +#: extras_topology.xml:494 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:500 +#, no-c-format +msgid "CopyTopology" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:501 +#, no-c-format +msgid "" +"Makes a copy of a topology structure (nodes, edges, faces, layers and " +"TopoGeometries)." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:506 +#, no-c-format +msgid "" +"integer CopyTopology " +"varchar existing_topology_name varchar new_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:517 +#, no-c-format +msgid "" +"Creates a new topology with name new_topology_name and " +"SRID and precision taken from existing_topology_name, " +"copies all nodes, edges and faces in there, copies layers and their " +"TopoGeometries too." +msgstr "" + +#. Tag: para +#: extras_topology.xml:521 +#, no-c-format +msgid "" +"The new rows in topology.layer will contain synthesized values for " +"schema_name, table_name and feature_column. This is because the TopoGeometry " +"will only exist as a definition but won't be available in any user-level " +"table yet." +msgstr "" + +#. Tag: para +#: extras_topology.xml:532 +#, no-c-format +msgid "This example makes a backup of a topology called ma_topo" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:535 +#, no-c-format +msgid "SELECT topology.CopyTopology('ma_topo', 'ma_topo_bakup');" +msgstr "" + +#. Tag: para +#: extras_topology.xml:543 extras_topology.xml:2057 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:549 +#, no-c-format +msgid "ST_InitTopoGeo" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:550 +#, no-c-format +msgid "" +"Creates a new topology schema and registers this new schema in the topology." +"topology table and details summary of process." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:555 +#, no-c-format +msgid "" +"text ST_InitTopoGeo " +"varchar topology_schema_name" +msgstr "" + +#. Tag: para +#: extras_topology.xml:565 +#, no-c-format +msgid "" +"This is an SQL-MM equivalent of CreateTopology but lacks the spatial " +"reference and tolerance options of CreateTopology and outputs a text " +"description of creation instead of topology id." +msgstr "" + +#. Tag: para +#: extras_topology.xml:569 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.17" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:575 +#, no-c-format +msgid "" +"SELECT topology.ST_InitTopoGeo('topo_schema_to_create') AS topocreation;\n" +" astopocreation\n" +"------------------------------------------------------------\n" +" Topology-Geometry 'topo_schema_to_create' (id:7) created." +msgstr "" + +#. Tag: refname +#: extras_topology.xml:589 +#, no-c-format +msgid "ST_CreateTopoGeo" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:591 +#, no-c-format +msgid "" +"Adds a collection of geometries to a given empty topology and " +"returns a message detailing success." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:598 +#, no-c-format +msgid "" +"text ST_CreateTopoGeo " +"varchar atopology " +"geometry acollection" +msgstr "" + +#. Tag: para +#: extras_topology.xml:609 +#, no-c-format +msgid "" +"Adds a collection of geometries to a given empty topology and returns " +"a message detailing success." +msgstr "" + +#. Tag: para +#: extras_topology.xml:613 +#, no-c-format +msgid "Useful for populating an empty topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:617 extras_topology.xml:913 extras_topology.xml:970 +#: extras_topology.xml:1042 extras_topology.xml:1110 extras_topology.xml:1280 +#: extras_topology.xml:1330 extras_topology.xml:1787 extras_topology.xml:1889 +#: extras_topology.xml:1943 extras_topology.xml:2294 +#, no-c-format +msgid "Availability: 2.0" +msgstr "" + +#. Tag: para +#: extras_topology.xml:618 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details -- X.3.18" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:624 +#, no-c-format +msgid "" +"-- Populate topology --\n" +"SELECT topology.ST_CreateTopoGeo('ri_topo', \n" +" ST_GeomFromText('MULTILINESTRING((384744 236928,384750 236923,384769 " +"236911,384799 236895,384811 236890,384833 236884,\n" +" 384844 236882,384866 236881,384879 236883,384954 236898,385087 " +"236932,385117 236938,\n" +" 385167 236938,385203 236941,385224 236946,385233 236950,385241 " +"236956,385254 236971,\n" +" 385260 236979,385268 236999,385273 237018,385273 237037,385271 " +"237047,385267 237057,\n" +" 385225 237125,385210 237144,385192 237161,385167 237192,385162 " +"237202,385159 237214,\n" +" 385159 237227,385162 237241,385166 237256,385196 237324,385209 " +"237345,385234 237375,\n" +" 385237 237383,385238 237399,385236 237407,385227 237419,385213 " +"237430,385193 237439,\n" +" 385174 237451,385170 237455,385169 237460,385171 237475,385181 " +"237503,385190 237521,\n" +" 385200 237533,385206 237538,385213 237541,385221 237542,385235 " +"237540,385242 237541,\n" +" 385249 237544,385260 237555,385270 237570,385289 237584,385292 " +"237589,385291 237596,385284 237630))',3438) \n" +" );\n" +"\n" +" st_createtopogeo\n" +"----------------------------\n" +" Topology ri_topo populated\n" +" \n" +" \n" +"-- create tables and topo geometries --\n" +"CREATE TABLE ri.roads(gid serial PRIMARY KEY, road_name text);\n" +"\n" +"SELECT topology.AddTopoGeometryColumn('ri_topo', 'ri', 'roads', 'topo', " +"'LINE');" +msgstr "" + +#. Tag: para +#: extras_topology.xml:630 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:636 +#, no-c-format +msgid "TopoGeo_AddPoint" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:638 +#, no-c-format +msgid "" +"Adds a point to an existing topology using a tolerance and possibly " +"splitting an existing edge." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:645 +#, no-c-format +msgid "" +"integer TopoGeo_AddPoint " +"varchar toponame " +"geometry apoint " +"float8 tolerance" +msgstr "" + +#. Tag: para +#: extras_topology.xml:657 +#, no-c-format +msgid "" +"Adds a point to an existing topology and return its identifier. The given " +"point will snap to existing nodes or edges within given tolerance. An " +"existing edge may be split by the snapped point." +msgstr "" + +#. Tag: para +#: extras_topology.xml:671 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:682 +#, no-c-format +msgid "TopoGeo_AddLineString" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:684 +#, no-c-format +msgid "" +"Adds a linestring to an existing topology using a tolerance and possibly " +"splitting existing edges/faces." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:691 +#, no-c-format +msgid "" +"integer TopoGeo_AddLineString " +"varchar toponame " +"geometry aline " +"float8 tolerance" +msgstr "" + +#. Tag: para +#: extras_topology.xml:703 +#, no-c-format +msgid "" +"Adds a linestring to an existing topology and return a set of edge " +"identifiers forming it up. The given line will snap to existing nodes or " +"edges within given tolerance. Existing edges and faces may be split by the " +"line." +msgstr "" + +#. Tag: para +#: extras_topology.xml:717 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:728 +#, no-c-format +msgid "TopoGeo_AddPolygon" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:730 +#, no-c-format +msgid "" +"Adds a polygon to an existing topology using a tolerance and possibly " +"splitting existing edges/faces." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:737 +#, no-c-format +msgid "" +"integer TopoGeo_AddPolygon " +"varchar atopology " +"geometry aline " +"float8 atolerance" +msgstr "" + +#. Tag: para +#: extras_topology.xml:749 +#, no-c-format +msgid "" +"Adds a polygon to an existing topology and return a set of face identifiers " +"forming it up. The boundary of the given polygon will snap to existing nodes " +"or edges within given tolerance. Existing edges and faces may be split by " +"the boundary of the new polygon." +msgstr "" + +#. Tag: para +#: extras_topology.xml:763 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: para +#: extras_topology.xml:778 +#, no-c-format +msgid "" +"This section covers topology functions for adding, moving, deleting, and " +"splitting edges, faces, and nodes. All of these functions are defined by ISO " +"SQL/MM." +msgstr "" + +#. Tag: title +#: extras_topology.xml:781 +#, no-c-format +msgid "Topology Editors" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:785 +#, no-c-format +msgid "ST_AddIsoNode" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:787 +#, no-c-format +msgid "" +"Adds an isolated node to a face in a topology and returns the nodeid of the " +"new node. If face is null, the node is still created." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:792 +#, no-c-format +msgid "" +"integer ST_AddIsoNode " +"varchar atopology " +"integer aface " +"geometry apoint" +msgstr "" + +#. Tag: para +#: extras_topology.xml:804 +#, no-c-format +msgid "" +"Adds an isolated node with point location apoint to an " +"existing face with faceid aface to a topology " +"atopology and returns the nodeid of the new node." +msgstr "" + +#. Tag: para +#: extras_topology.xml:805 +#, no-c-format +msgid "" +"If the spatial reference system (srid) of the point geometry is not the same " +"as the topology, the apoint is not a point geometry, the " +"point is null, or the point intersects an existing edge (even at the " +"boundaries) then an exception is thrown. If the point already exists as a " +"node, an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:807 +#, no-c-format +msgid "" +"If aface is not null and the apoint is " +"not within the face, then an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:811 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM: Topo-Net Routines: X+1.3.1" +msgstr "" + +#. Tag: para +#: extras_topology.xml:824 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:830 +#, no-c-format +msgid "ST_AddIsoEdge" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:832 +#, no-c-format +msgid "" +"Adds an isolated edge defined by geometry alinestring to a topology connecting two existing isolated nodes " +"anode and anothernode and returns the " +"edge id of the new edge." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:837 +#, no-c-format +msgid "" +"integer ST_AddIsoEdge " +"varchar atopology " +"integer anode " +"integer anothernode geometry alinestring" +msgstr "" + +#. Tag: para +#: extras_topology.xml:850 +#, no-c-format +msgid "" +"Adds an isolated edge defined by geometry alinestring to a topology connecting two existing isolated nodes " +"anode and anothernode and returns the " +"edge id of the new edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:851 +#, no-c-format +msgid "" +"If the spatial reference system (srid) of the alinestring " +"geometry is not the same as the topology, any of the input arguments are " +"null, or the nodes are contained in more than one face, or the nodes are " +"start or end nodes of an existing edge, then an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:853 +#, no-c-format +msgid "" +"If the alinestring is not within the face of the face the " +"anode and anothernode belong to, then " +"an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:854 +#, no-c-format +msgid "" +"If the anode and anothernode are not " +"the start and end points of the alinestring then an " +"exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:858 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.4" +msgstr "" + +#. Tag: para +#: extras_topology.xml:871 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:877 +#, no-c-format +msgid "ST_AddEdgeNewFaces" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:879 +#, no-c-format +msgid "" +"Add a new edge and, if in doing so it splits a face, delete the original " +"face and replace it with two new faces." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:884 +#, no-c-format +msgid "" +"integer ST_AddEdgeNewFaces " +"varchar atopology " +"integer anode " +"integer anothernode geometry acurve" +msgstr "" + +#. Tag: para +#: extras_topology.xml:897 +#, no-c-format +msgid "" +"Add a new edge and, if in doing so it splits a face, delete the original " +"face and replace it with two new faces. Returns the id of the newly added " +"edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:903 extras_topology.xml:961 extras_topology.xml:1024 +#: extras_topology.xml:1092 +#, no-c-format +msgid "Updates all existing joined edges and relationships accordingly." +msgstr "" + +#. Tag: para +#: extras_topology.xml:907 extras_topology.xml:965 +#, no-c-format +msgid "" +"If any arguments are null, the given nodes are unknown (must already exist " +"in the node table of the topology schema) , the " +"acurve is not a LINESTRING, the " +"anode and anothernode are not the " +"start and endpoints of acurve then an error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:910 extras_topology.xml:968 extras_topology.xml:1163 +#, no-c-format +msgid "" +"If the spatial reference system (srid) of the acurve " +"geometry is not the same as the topology an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:914 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.12" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:934 +#, no-c-format +msgid "ST_AddEdgeModFace" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:936 +#, no-c-format +msgid "" +"Add a new edge and, if in doing so it splits a face, modify the original " +"face and add a new face." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:941 +#, no-c-format +msgid "" +"integer ST_AddEdgeModFace " +"varchar atopology " +"integer anode " +"integer anothernode geometry acurve" +msgstr "" + +#. Tag: para +#: extras_topology.xml:954 +#, no-c-format +msgid "" +"Add a new edge and, if in doing so it splits a face, modify the original " +"face and add a new face. Unless the face being split is the Universal Face, " +"the new face will be on the right side of the newly added edge. Returns the " +"id of the newly added edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:971 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.13" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:991 +#, no-c-format +msgid "ST_RemEdgeNewFace" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:993 +#, no-c-format +msgid "" +"Removes an edge and, if the removed edge separated two faces, " +"delete the original faces and replace them with a new face." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1001 +#, no-c-format +msgid "" +"integer ST_RemEdgeNewFace " +"varchar atopology " +"integer anedge" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1012 +#, no-c-format +msgid "" +"Removes an edge and, if the removed edge separated two faces, delete " +"the original faces and replace them with a new face." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1017 +#, no-c-format +msgid "" +"Returns the id of a newly created face or NULL, if no new face is created. " +"No new face is created when the removed edge is dangling or isolated or " +"confined with the universe face (possibly making the universe flood into the " +"face on the other side)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1028 extras_topology.xml:1096 +#, no-c-format +msgid "" +"Refuses to remove an edge partecipating in the definition of an existing " +"TopoGeometry. Refuses to heal two faces if any TopoGeometry is defined by " +"only one of them (and not the other)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1035 extras_topology.xml:1103 +#, no-c-format +msgid "" +"If any arguments are null, the given edge is unknown (must already exist in " +"the edge table of the topology schema), the topology name " +"is invalid then an error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1043 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.14" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1063 +#, no-c-format +msgid "ST_RemEdgeModFace" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1065 +#, no-c-format +msgid "" +"Removes an edge and, if the removed edge separated two faces, delete one of " +"the them and modify the other to take the space of both." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1073 +#, no-c-format +msgid "" +"integer ST_RemEdgeModFace " +"varchar atopology " +"integer anedge" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1084 +#, no-c-format +msgid "" +"Removes an edge and, if the removed edge separated two faces, delete one of " +"the them and modify the other to take the space of both. Preferentially " +"keeps the face on the right, to be symmetric with ST_AddEdgeModFace also " +"keeping it. Returns the id of the face remaining in place of the removed " +"edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1111 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.15" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1131 +#, no-c-format +msgid "ST_ChangeEdgeGeom" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1133 +#, no-c-format +msgid "" +"Changes the shape of an edge without affecting the topology " +"structure." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1140 +#, no-c-format +msgid "" +"integer ST_ChangeEdgeGeom " +"varchar atopology " +"integer anedge " +"geometry acurve" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1152 +#, no-c-format +msgid "" +"Changes the shape of an edge without affecting the topology structure." +"" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1155 +#, no-c-format +msgid "" +"If any arguments are null, the given edge does not exist in the " +"node table of the topology schema, the acurve is not a LINESTRING, the anode and anothernode are not the start and endpoints " +"of acurve or the modification would change the underlying " +"topology then an error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1164 +#, no-c-format +msgid "" +"If the new acurve is not simple, then an error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1166 +#, no-c-format +msgid "" +"If moving the edge from old to new position would hit an obstacle then an " +"error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1172 +#, no-c-format +msgid "Availability: 1.1.0" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1175 +#, no-c-format +msgid "Enhanced: 2.0.0 adds topological consistency enforcement" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1179 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details X.3.6" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1185 +#, no-c-format +msgid "" +"SELECT topology.ST_ChangeEdgeGeom('ma_topo', 1, \n" +" ST_GeomFromText('LINESTRING(227591.9 893900.4,227622.6 " +"893844.3,227641.6 893816.6, 227704.5 893778.5)', 26986) );\n" +" ----\n" +" Edge 1 changed" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1199 +#, no-c-format +msgid "ST_ModEdgeSplit" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1201 +#, no-c-format +msgid "" +"Split an edge by creating a new node along an existing edge, modifying the " +"original edge and adding a new edge." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1206 +#, no-c-format +msgid "" +"text ST_ModEdgeSplit " +"varchar atopology " +"integer anedge " +"geometry apoint" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1218 +#, no-c-format +msgid "" +"Split an edge by creating a new node along an existing edge, modifying the " +"original edge and adding a new edge. Updates all existing joined edges and " +"relationships accordingly." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1226 +#, no-c-format +msgid "Changed: 2.0 - In prior versions, this was misnamed ST_ModEdgesSplit" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1227 extras_topology.xml:1281 extras_topology.xml:1331 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X.3.9" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1233 +#, no-c-format +msgid "" +"-- Add an edge --\n" +" SELECT topology.AddEdge('ma_topo', ST_GeomFromText('LINESTRING(227592 " +"893910, 227600 893910)', 26986) ) As edgeid;\n" +" \n" +"-- edgeid-\n" +"3\n" +"\n" +"\n" +"-- Split the edge --\n" +"SELECT topology.ST_ModEdgeSplit('ma_topo', 3, ST_SetSRID(ST_Point" +"(227594,893910),26986) ) As result;\n" +" result\n" +"-------------------------\n" +"7" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1239 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1250 +#, no-c-format +msgid "ST_ModEdgeHeal" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1252 +#, no-c-format +msgid "" +"Heal two edges by deleting the node connecting them, modifying the first " +"edge and deleting the second edge. Returns the id of the deleted node." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1260 +#, no-c-format +msgid "" +"int ST_ModEdgeHeal " +"varchar atopology " +"integer anedge " +"integer anotheredge" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1272 +#, no-c-format +msgid "" +"Heal two edges by deleting the node connecting them, modifying the first " +"edge and deleting the second edge. Returns the id of the deleted node. " +"Updates all existing joined edges and relationships accordingly." +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1297 +#, no-c-format +msgid "ST_NewEdgeHeal" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1299 +#, no-c-format +msgid "" +"Heal two edges by deleting the node connecting them, deleting both edges, " +"and replacing them with an edge whose direction is the same as the first " +"edge provided." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1308 +#, no-c-format +msgid "" +"int ST_NewEdgeHeal " +"varchar atopology " +"integer anedge " +"integer anotheredge" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1320 +#, no-c-format +msgid "" +"Heal two edges by deleting the node connecting them, deleting both edges, " +"and replacing them with an edge whose direction is the same as the first " +"edge provided. Returns the id of the new edge replacing the healed ones. " +"Updates all existing joined edges and relationships accordingly." +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1348 +#, no-c-format +msgid "ST_MoveIsoNode" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1350 +#, no-c-format +msgid "" +"Moves an isolated node in a topology from one point to another. If new " +"apoint geometry exists as a node an error is thrown. " +"REturns description of move." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1355 +#, no-c-format +msgid "" +"text ST_MoveIsoNode " +"varchar atopology " +"integer anedge " +"geometry apoint" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1367 +#, no-c-format +msgid "" +"Moves an isolated node in a topology from one point to another. If new " +"apoint geometry exists as a node an error is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1368 +#, no-c-format +msgid "" +"If any arguments are null, the apoint is not a point, the " +"existing node is not isolated (is a start or end point of an existing edge), " +"new node location intersects an existing edge (even at the end points) then " +"an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1369 +#, no-c-format +msgid "" +"If the spatial reference system (srid) of the point geometry is not the same " +"as the topology an exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1374 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM: Topo-Net Routines: X.3.2" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1380 +#, no-c-format +msgid "" +"-- Add an isolated node with no face --\n" +"SELECT topology.ST_AddIsoNode('ma_topo', NULL, ST_GeomFromText('POINT" +"(227579 893916)', 26986) ) As nodeid;\n" +" nodeid\n" +"--------\n" +" 7\n" +"-- Move the new node --\n" +"SELECT topology.ST_MoveIsoNode('ma_topo', 7, ST_GeomFromText('POINT" +"(227579.5 893916.5)', 26986) ) As descrip; \n" +" descrip\n" +"----------------------------------------------------\n" +"Isolated Node 7 moved to location 227579.5,893916.5" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1391 +#, no-c-format +msgid "ST_NewEdgesSplit" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1393 +#, no-c-format +msgid "" +"Split an edge by creating a new node along an existing edge, deleting the " +"original edge and replacing it with two new edges. Returns the id of the new " +"node created that joins the new edges." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1398 +#, no-c-format +msgid "" +"integer ST_NewEdgesSplit " +"varchar atopology " +"integer anedge " +"geometry apoint" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1410 +#, no-c-format +msgid "" +"Split an edge with edge id anedge by creating a new node " +"with point location apoint along current edge, deleting " +"the original edge and replacing it with two new edges. Returns the id of the " +"new node created that joins the new edges. Updates all existing joined edges " +"and relationships accordingly." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1418 +#, no-c-format +msgid "" +"If the spatial reference system (srid) of the point geometry is not the same " +"as the topology, the apoint is not a point geometry, the " +"point is null, the point already exists as a node, the edge does not " +"correspond to an existing edge or the point is not within the edge then an " +"exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1423 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM: Topo-Net Routines: X.3.8" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1429 +#, no-c-format +msgid "" +"-- Add an edge --\n" +"SELECT topology.AddEdge('ma_topo', ST_GeomFromText('LINESTRING(227575 " +"893917,227592 893900)', 26986) ) As edgeid;\n" +"-- result-\n" +"edgeid\n" +"------\n" +" 2\n" +"-- Split the new edge --\n" +"SELECT topology.ST_NewEdgesSplit('ma_topo', 2, ST_GeomFromText('POINT" +"(227578.5 893913.5)', 26986) ) As newnodeid; \n" +" newnodeid\n" +"---------\n" +" 6" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1446 +#, no-c-format +msgid "ST_RemoveIsoNode" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1448 +#, no-c-format +msgid "" +"Removes an isolated node and returns description of action. If " +"the node is not isolated (is start or end of an edge), then an exception is " +"thrown." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1453 +#, no-c-format +msgid "" +"text ST_RemoveIsoNode " +"varchar atopology " +"integer anode" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1464 +#, no-c-format +msgid "" +"Removes an isolated node and returns description of action. If the " +"node is not isolated (is start or end of an edge), then an exception is " +"thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1469 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM: Topo-Geo and Topo-Net 3: Routine Details: X+1.3.3" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1475 +#, no-c-format +msgid "" +"-- Add an isolated node with no face --\n" +"SELECT topology.ST_RemoveIsoNode('ma_topo', 7 ) As result;\n" +" result\n" +"-------------------------\n" +" Isolated node 7 removed" +msgstr "" + +#. Tag: title +#: extras_topology.xml:1487 +#, no-c-format +msgid "Topology Accessors" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1490 +#, no-c-format +msgid "GetEdgeByPoint" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1492 +#, no-c-format +msgid "Find the edge-id of an edge that intersects a given point" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1497 +#, no-c-format +msgid "" +"integer GetEdgeByPoint " +"varchar atopology " +"geometry apoint " +"float8 tol" +msgstr "" + +#. Tag: title +#: extras_topology.xml:1508 +#, no-c-format +msgid "Retrieve the id of an edge that intersects a Point" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1510 +#, no-c-format +msgid "" +"The function returns an integer (id-edge) given a topology, a POINT and a " +"tolerance. If tolerance = 0 then the point has to intersect the edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1511 extras_topology.xml:1559 +#, no-c-format +msgid "" +"If the point is the location of a node, then an exception is thrown. To " +"avoid this run the GetNodeByPoint function." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1512 +#, no-c-format +msgid "If the point doesn't intersect an edge, returns 0 (zero)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1513 +#, no-c-format +msgid "" +"If use tolerance > 0 and there is more than one edge near the point then an " +"exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1518 +#, no-c-format +msgid "" +"If tolerance = 0, the function use ST_Intersects otherwise uses ST_DWithin." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1521 extras_topology.xml:1568 extras_topology.xml:1615 +#, no-c-format +msgid "Availability: 2.0.0 - requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1527 extras_topology.xml:1621 +#, no-c-format +msgid "These examples use edges we created in " +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1528 +#, no-c-format +msgid "" +"SELECT topology.GetEdgeByPoint('ma_topo',geom, 1) As with1mtol, topology." +"GetEdgeByPoint('ma_topo',geom,0) As withnotol\n" +"FROM ST_GeomFromEWKT('SRID=26986;POINT(227622.6 893843)') As geom;\n" +" with1mtol | withnotol\n" +"-----------+-----------\n" +" 2 | 0" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1529 +#, no-c-format +msgid "" +"SELECT topology.GetEdgeByPoint('ma_topo',geom, 1) As nearnode\n" +"FROM ST_GeomFromEWKT('SRID=26986;POINT(227591.9 893900.4)') As geom;\n" +"\n" +"-- get error --\n" +"ERROR: Two or more edges found" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1536 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1542 +#, no-c-format +msgid "GetFaceByPoint" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1543 +#, no-c-format +msgid "Find the face-id of a face that intersects a given point" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1547 +#, no-c-format +msgid "" +"integer GetFaceByPoint " +"varchar atopology " +"geometry apoint " +"float8 tol" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1557 +#, no-c-format +msgid "Retrieve the id of a face that intersects a Point." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1558 +#, no-c-format +msgid "" +"The function returns an integer (id-face) given a topology, a POINT and a " +"tolerance. If tolerance = 0 then the point has to intersect the face." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1560 +#, no-c-format +msgid "If the point doesn't intersect a face, returns 0 (zero)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1561 +#, no-c-format +msgid "" +"If use tolerance > 0 and there is more than one face near the point then an " +"exception is thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1565 +#, no-c-format +msgid "" +"If tolerance = 0, the function uses ST_Intersects otherwise uses ST_DWithin." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1572 +#, no-c-format +msgid "These examples use edges faces created in " +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1573 +#, no-c-format +msgid "" +"SELECT topology.GetFaceByPoint('ma_topo',geom, 10) As with1mtol, topology." +"GetFaceByPoint('ma_topo',geom,0) As withnotol\n" +" FROM ST_GeomFromEWKT('POINT(234604.6 899382.0)') As geom;\n" +" \n" +" with1mtol | withnotol\n" +" -----------+-----------\n" +" 1 | 0" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1574 +#, no-c-format +msgid "" +"SELECT topology.GetFaceByPoint('ma_topo',geom, 1) As nearnode\n" +" FROM ST_GeomFromEWKT('POINT(227591.9 893900.4)') As geom;\n" +" \n" +"-- get error --\n" +"ERROR: Two or more faces found" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1579 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1585 +#, no-c-format +msgid "GetNodeByPoint" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1587 +#, no-c-format +msgid "Find the id of a node at a point location" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1592 +#, no-c-format +msgid "" +"integer GetNodeByPoint " +"varchar atopology " +"geometry point " +"float8 tol" +msgstr "" + +#. Tag: title +#: extras_topology.xml:1603 +#, no-c-format +msgid "Retrieve the id of a node at a point location" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1605 +#, no-c-format +msgid "" +"The function return an integer (id-node) given a topology, a POINT and a " +"tolerance. If tolerance = 0 mean exactly intersection otherwise retrieve the " +"node from an interval." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1606 +#, no-c-format +msgid "If there isn't a node at the point, it return 0 (zero)." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1607 +#, no-c-format +msgid "" +"If use tolerance > 0 and near the point there are more than one node it " +"throw an exception." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1612 +#, no-c-format +msgid "" +"If tolerance = 0, the function use ST_Intersects otherwise will use " +"ST_DWithin." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1622 +#, no-c-format +msgid "" +"SELECT topology.GetNodeByPoint('ma_topo',geom, 1) As nearnode \n" +" FROM ST_GeomFromEWKT('SRID=26986;POINT(227591.9 893900.4)') As geom;\n" +" nearnode\n" +"----------\n" +" 2" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1623 +#, no-c-format +msgid "" +"SELECT topology.GetNodeByPoint('ma_topo',geom, 1000) As too_much_tolerance\n" +" FROM ST_GeomFromEWKT('SRID=26986;POINT(227591.9 893900.4)') As geom;\n" +" \n" +" ----get error--\n" +" ERROR: Two or more nodes found" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1630 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1636 +#, no-c-format +msgid "GetTopologyID" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1638 +#, no-c-format +msgid "" +"Returns the id of a topology in the topology.topology table " +"given the name of the topology." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1643 extras_topology.xml:1685 +#, no-c-format +msgid "" +"integer GetTopologyID " +"varchar toponame" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1653 +#, no-c-format +msgid "" +"Returns the id of a topology in the topology.topology table given the " +"name of the topology." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1661 +#, no-c-format +msgid "" +"SELECT topology.GetTopologyID('ma_topo') As topo_id;\n" +" topo_id\n" +"---------\n" +" 1" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1667 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1678 +#, no-c-format +msgid "GetTopologySRID" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1680 +#, no-c-format +msgid "" +"Returns the SRID of a topology in the topology.topology table given the name " +"of the topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1695 +#, no-c-format +msgid "" +"Returns the spatial reference id of a topology in the topology.topology " +"table given the name of the topology." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1703 +#, no-c-format +msgid "" +"SELECT topology.GetTopologySRID('ma_topo') As SRID;\n" +" SRID\n" +"-------\n" +" 4326" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1709 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1720 +#, no-c-format +msgid "GetTopologyName" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1722 +#, no-c-format +msgid "Returns the name of a topology (schema) given the id of the topology." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1727 +#, no-c-format +msgid "" +"varchar GetTopologyName " +"integer topology_id" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1737 +#, no-c-format +msgid "" +"Returns the topology name (schema) of a topology from the topology.topology " +"table given the topology id of the topology." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1745 +#, no-c-format +msgid "" +"SELECT topology.GetTopologyName(1) As topo_name;\n" +" topo_name\n" +"-----------\n" +" ma_topo" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1751 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1762 +#, no-c-format +msgid "ST_GetFaceEdges" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1764 +#, no-c-format +msgid "" +"Returns a set of ordered edges that bound aface includes " +"the sequence order." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1769 +#, no-c-format +msgid "" +"getfaceedges_returntype ST_GetFaceEdges varchar atopology integer aface" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1780 +#, no-c-format +msgid "" +"Returns a set of ordered edges that bound aface includes " +"the sequence order. Each output consists of a sequence and edgeid. Sequence " +"numbers start with value 1." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1782 +#, no-c-format +msgid "" +"Enumeration of each ring edges start from the edge with smallest identifier." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1788 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.5" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1794 +#, no-c-format +msgid "" +"-- Returns the edges bounding face 1\n" +"SELECT (topology.ST_GetFaceEdges('tt', 1)).*;\n" +"-- result --\n" +" sequence | edge\n" +"----------+------\n" +" 1 | -4\n" +" 2 | 5\n" +" 3 | 7\n" +" 4 | -6\n" +" 5 | 1\n" +" 6 | 2\n" +" 7 | 3\n" +"(7 rows)" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1795 +#, no-c-format +msgid "" +"-- Returns the sequenc, edge id\n" +"-- , and geometry of the edges that bound face 1\n" +"-- If you just need geom and seq, can use ST_GetFaceGeometry\n" +"SELECT t.seq, t.edge, geom\n" +"FROM topology.ST_GetFaceEdges('tt',1) As t(seq,edge)\n" +" INNER JOIN tt.edge AS e ON abs(t.edge) = e.edge_id;" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1801 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1811 +#, no-c-format +msgid "ST_GetFaceGeometry" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1813 +#, no-c-format +msgid "Returns the polygon in the given topology with the specified face id." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1818 +#, no-c-format +msgid "" +"geometry ST_GetFaceGeometry " +"varchar atopology " +"integer aface" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1829 +#, no-c-format +msgid "" +"Returns the polygon in the given topology with the specified face id. Builds " +"the polygon from the edges making up the face." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1834 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM 3 Topo-Geo and Topo-Net 3: Routine Details: X.3.16" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:1840 +#, no-c-format +msgid "" +"-- Returns the wkt of the polygon added with AddFace\n" +"SELECT ST_AsText(topology.ST_GetFaceGeometry('ma_topo', 1)) As facegeomwkt;\n" +"-- result --\n" +" facegeomwkt\n" +"\n" +"--------------------------------------------------------------------------------\n" +" POLYGON((234776.9 899563.7,234896.5 899456.7,234914 899436.4,234946.6 " +"899356.9,\n" +"234872.5 899328.7,234891 899285.4,234992.5 899145,234890.6 899069,\n" +"234755.2 899255.4,234612.7 899379.4,234776.9 899563.7))" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1852 +#, no-c-format +msgid "GetRingEdges" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1854 +#, no-c-format +msgid "Returns an ordered set of edges forming a ring with the given edge ." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1861 +#, no-c-format +msgid "" +"getfaceedges_returntype GetRingEdges " +"varchar atopology " +"integer aring " +"integer max_edges=null" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1873 +#, no-c-format +msgid "" +"Returns an ordered set of edges forming a ring with the given edge. Each " +"output consists of a sequence and a signed edge id. Sequence numbers start " +"with value 1. A negative edge identifier means that the given edge is taken " +"backward. You can pass a negative edge id to start walking backward." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1881 +#, no-c-format +msgid "" +"If max_edges is not null no more than those records are " +"returned by that function. This is meant to be a safety parameter when " +"dealing with possibly invalid topologies." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1896 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1905 +#, no-c-format +msgid "GetNodeEdges" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1907 +#, no-c-format +msgid "Returns an ordered set of edges incident to the given node." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1914 +#, no-c-format +msgid "" +"getfaceedges_returntype GetNodeEdges " +"varchar atopology " +"integer anode" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1925 +#, no-c-format +msgid "" +"Returns an ordered set of edges incident to the given node. Each output " +"consists of a sequence and a signed edge id. Sequence numbers start with " +"value 1. A positive edge starts at the given node. A negative edge ends into " +"the given node. Closed edges will appear twice (with both signs). Order is " +"clockwise starting from northbound." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1936 +#, no-c-format +msgid "" +"This function computes ordering rather than deriving from metadata and is " +"thus usable to build edge ring linking." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1949 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: para +#: extras_topology.xml:1962 +#, no-c-format +msgid "" +"This section covers the functions for processing topologies in non-standard " +"ways." +msgstr "" + +#. Tag: title +#: extras_topology.xml:1965 +#, no-c-format +msgid "Topology Processing" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:1968 +#, no-c-format +msgid "Polygonize" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:1969 +#, no-c-format +msgid "Find and register all faces defined by topology edges" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:1973 +#, no-c-format +msgid "" +"text Polygonize " +"varchar toponame" +msgstr "" + +#. Tag: para +#: extras_topology.xml:1983 +#, no-c-format +msgid "Register all faces that can be built out a topology edge primitives." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1984 +#, no-c-format +msgid "The target topology is assumed to contain no self-intersecting edges." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1985 +#, no-c-format +msgid "" +"Already known faces are recognized, so it is safe to call Polygonize " +"multiple times on the same topology." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1986 extras_topology.xml:2139 +#, no-c-format +msgid "" +"This function does not use nor set the next_left_edge and next_right_edge " +"fields of the edge table." +msgstr "" + +#. Tag: para +#: extras_topology.xml:1998 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2004 +#, no-c-format +msgid "AddNode" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2006 +#, no-c-format +msgid "" +"Adds a point node to the node table in the specified topology schema and " +"returns the nodeid of new node. If point already exists as node, the " +"existing nodeid is returned." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2011 +#, no-c-format +msgid "" +"integer AddNode " +"varchar toponame " +"geometry apoint " +"boolean " +"allowEdgeSplitting=false boolean computeContainingFace=false" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2024 +#, no-c-format +msgid "" +"Adds a point node to the node table in the specified topology schema. The " +" function automatically adds start and end points " +"of an edge when called so not necessary to explicitly add nodes of an edge." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2031 +#, no-c-format +msgid "" +"If any edge crossing the node is found either an exception is raised or the " +"edge is splitted, depending on the allowEdgeSplitting " +"parameter value." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2037 +#, no-c-format +msgid "" +"If computeContainingFace is true a newly added node would " +"get the correct containing face computed." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2042 +#, no-c-format +msgid "" +"If the apoint geometry already exists as a node, the node " +"is not added but the existing nodeid is returned." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2051 +#, no-c-format +msgid "" +"SELECT topology.AddNode('ma_topo', ST_GeomFromText('POINT(227641.6 " +"893816.5)', 26986) ) As nodeid;\n" +"-- result --\n" +"nodeid\n" +"--------\n" +" 4" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2063 +#, no-c-format +msgid "AddEdge" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2065 +#, no-c-format +msgid "" +"Adds a linestring edge to the edge table and associated start and end points " +"to the point nodes table of the specified topology schema using the " +"specified linestring geometry and returns the edgeid of the new (or " +"existing) edge." +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2070 +#, no-c-format +msgid "" +"integer AddEdge " +"varchar toponame " +"geometry aline" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2081 +#, no-c-format +msgid "" +"Adds an edge to the edge table and associated nodes to the nodes table of " +"the specified toponame schema using the specified " +"linestring geometry and returns the edgeid of the new or existing record. " +"The newly added edge has \"universe\" face on both sides and links to itself." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2083 +#, no-c-format +msgid "" +"If the aline geometry crosses, overlaps, contains or is " +"contained by an existing linestring edge, then an error is thrown and the " +"edge is not added." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2084 +#, no-c-format +msgid "" +"The geometry of aline must have the same srid as defined for the topology otherwise an invalid spatial reference " +"sys error will be thrown." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2088 +#, no-c-format +msgid "Availability: 2.0.0 requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2094 +#, no-c-format +msgid "" +"SELECT topology.AddEdge('ma_topo', ST_GeomFromText('LINESTRING(227575.8 " +"893917.2,227591.9 893900.4)', 26986) ) As edgeid;\n" +"-- result-\n" +"edgeid\n" +"--------\n" +" 1\n" +" \n" +"SELECT topology.AddEdge('ma_topo', ST_GeomFromText('LINESTRING(227591.9 " +"893900.4,227622.6 893844.2,227641.6 893816.5,\n" +" 227704.5 893778.5)', 26986) ) As edgeid;\n" +"-- result --\n" +"edgeid\n" +"--------\n" +" 2\n" +" \n" +" SELECT topology.AddEdge('ma_topo', ST_GeomFromText('LINESTRING(227591.2 " +"893900, 227591.9 893900.4,\n" +" 227704.5 893778.5)', 26986) ) As edgeid;\n" +" -- gives error --\n" +" ERROR: Edge intersects (not on endpoints) with existing edge 1" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2100 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2106 +#, no-c-format +msgid "AddFace" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2108 +#, no-c-format +msgid "" +"Registers a face primitive to a topology and get it's identifier." +"" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2115 +#, no-c-format +msgid "" +"integer AddFace " +"varchar toponame " +"geometry apolygon " +"boolean force_new=false" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2127 +#, no-c-format +msgid "" +"Registers a face primitive to a topology and get it's identifier." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2131 +#, no-c-format +msgid "" +"For a newly added face, the edges forming its boundaries and the ones " +"contained in the face will be updated to have correct values in the " +"left_face and right_face fields. Isolated nodes contained in the face will " +"also be updated to have a correct containing_face field value." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2143 +#, no-c-format +msgid "" +"The target topology is assumed to be valid (containing no self-intersecting " +"edges). An exception is raised if: The polygon boundary is not fully defined " +"by existing edges or the polygon overlaps an existing face." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2145 +#, no-c-format +msgid "" +"If the apolygon geometry already exists as a face, then: " +"if force_new is false (the default) the face id of the " +"existing face is returned; if force_new is true a new id " +"will be assigned to the newly registered face." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2153 +#, no-c-format +msgid "" +"When a new registration of an existing face is performed (force_new=true), " +"no action will be taken to resolve dangling references to the existing face " +"in the edge, node an relation tables, nor will the MBR field of the existing " +"face record be updated. It is up to the caller to deal with that." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2160 +#, no-c-format +msgid "" +"The apolygon geometry must have the same srid as defined for the topology otherwise an invalid spatial reference " +"sys error will be thrown." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2169 +#, no-c-format +msgid "" +"-- first add the edges we use generate_series as an iterator (the below \n" +"-- will only work for polygons with < 10000 points because of our max in " +"gs) \n" +"SELECT topology.AddEdge('ma_topo', ST_MakeLine(ST_PointN(geom,i), ST_PointN" +"(geom, i + 1) )) As edgeid\n" +" FROM (SELECT ST_NPoints(geom) AS npt, geom\n" +" FROM \n" +" (SELECT ST_Boundary(ST_GeomFromText('POLYGON((234896.5 " +"899456.7,234914 899436.4,234946.6 899356.9,234872.5 899328.7,\n" +" 234891 899285.4,234992.5 899145, 234890.6 899069,234755.2 " +"899255.4,\n" +" 234612.7 899379.4,234776.9 899563.7,234896.5 899456.7))', " +"26986) ) As geom\n" +" ) As geoms) As facen CROSS JOIN generate_series(1,10000) As i\n" +" WHERE i < npt;\n" +"-- result --\n" +" edgeid\n" +"--------\n" +" 3\n" +" 4\n" +" 5\n" +" 6\n" +" 7\n" +" 8\n" +" 9\n" +" 10\n" +" 11\n" +" 12\n" +"(10 rows)\n" +"-- then add the face -\n" +" \n" +"SELECT topology.AddFace('ma_topo', \n" +" ST_GeomFromText('POLYGON((234896.5 899456.7,234914 899436.4,234946.6 " +"899356.9,234872.5 899328.7,\n" +" 234891 899285.4,234992.5 899145, 234890.6 899069,234755.2 899255.4,\n" +" 234612.7 899379.4,234776.9 899563.7,234896.5 899456.7))', 26986) ) As " +"faceid;\n" +"-- result --\n" +"faceid\n" +"--------\n" +" 1" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2175 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: para +#: extras_topology.xml:2185 +#, no-c-format +msgid "" +"This section covers the topology functions for creating new topogeometries." +msgstr "" + +#. Tag: title +#: extras_topology.xml:2188 +#, no-c-format +msgid "TopoGeometry Constructors" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2191 +#, no-c-format +msgid "CreateTopoGeom" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2193 +#, no-c-format +msgid "" +"Creates a new topo geometry object from topo element array - tg_type: 1:" +"[multi]point, 2:[multi]line, 3:[multi]poly, 4:collection" +msgstr "" + +#. Tag: funcsynopsis +#: extras_topology.xml:2197 +#, no-c-format +msgid "" +" topogeometry CreateTopoGeom varchar toponame integer tg_type integer layer_id topoelementarray tg_objs topogeometry " +"CreateTopoGeom varchar toponame integer tg_type integer layer_id " +msgstr "" + +#. Tag: para +#: extras_topology.xml:2218 extras_topology.xml:2280 +#, no-c-format +msgid "" +"Creates a topogeometry object for layer denoted by layer_id and registers it " +"in the relations table in the toponame schema." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2219 +#, no-c-format +msgid "" +"tg_type is an integer: 1:[multi]point (punctal), 2:[multi]line (lineal), 3:" +"[multi]poly (areal), 4:collection. layer_id is the layer id in the topology." +"layer table." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2220 +#, no-c-format +msgid "" +"punctal layers are formed from set of nodes, lineal layers are formed from a " +"set of edges, areal layers are formed from a set of faces, and collections " +"can be formed from a mixture of nodes, edges, and faces." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2222 +#, no-c-format +msgid "" +"Omitting the array of components generates an empty TopoGeometry object." +msgstr "" + +#. Tag: title +#: extras_topology.xml:2229 +#, no-c-format +msgid "Examples: Form from existing edges" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2230 +#, no-c-format +msgid "" +"Create a topogeom in ri_topo schema for layer 2 (our ri_roads), of type (2) " +"LINE, for the first edge (we loaded in ST_CreateTopoGeo." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2231 +#, no-c-format +msgid "" +"INSERT INTO ri.ri_roads(road_name, topo) VALUES('Unknown', topology." +"CreateTopoGeom('ri_topo',2,2,'{{1,2}}'::topology.topoelementarray);" +msgstr "" + +#. Tag: title +#: extras_topology.xml:2236 +#, no-c-format +msgid "Examples: Convert an areal geometry to best guess topogeometry" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2237 +#, no-c-format +msgid "" +"Lets say we have geometries that should be formed from a collection of " +"faces. We have for example blockgroups table and want to know the topo " +"geometry of each block group. If our data was perfectly aligned, we could do " +"this:" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2239 +#, no-c-format +msgid "" +"-- create our topo geometry column --\n" +"SELECT topology.AddTopoGeometryColumn(\n" +" 'topo_boston', \n" +" 'boston', 'blockgroups', 'topo', 'POLYGON');\n" +" \n" +"-- addtopgeometrycolumn --\n" +"1\n" +" \n" +"-- update our column assuming \n" +"-- everything is perfectly aligned with our edges\n" +"UPDATE boston.blockgroups AS bg\n" +" SET topo = topology.CreateTopoGeom('topo_boston'\n" +" ,3,1\n" +" , foo.bfaces)\n" +"FROM (SELECT b.gid, topology.TopoElementArray_Agg(ARRAY[f.face_id,3]) As " +"bfaces\n" +" FROM boston.blockgroups As b\n" +" INNER JOIN topo_boston.face As f ON b.geom && f.mbr\n" +" WHERE ST_Covers(b.geom, topology.ST_GetFaceGeometry('topo_boston', f." +"face_id))\n" +" GROUP BY b.gid) As foo\n" +"WHERE foo.gid = bg.gid;" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2241 +#, no-c-format +msgid "" +"--the world is rarely perfect allow for some error\n" +"--count the face if 50% of it falls \n" +"-- within what we think is our blockgroup boundary\n" +"UPDATE boston.blockgroups AS bg\n" +" SET topo = topology.CreateTopoGeom('topo_boston'\n" +" ,3,1\n" +" , foo.bfaces)\n" +"FROM (SELECT b.gid, topology.TopoElementArray_Agg(ARRAY[f.face_id,3]) As " +"bfaces\n" +" FROM boston.blockgroups As b\n" +" INNER JOIN topo_boston.face As f ON b.geom && f.mbr\n" +" WHERE ST_Covers(b.geom, topology.ST_GetFaceGeometry('topo_boston', f." +"face_id))\n" +" OR\n" +" ( ST_Intersects(b.geom, topology.ST_GetFaceGeometry('topo_boston', f." +"face_id))\n" +" AND ST_Area(ST_Intersection(b.geom, topology.ST_GetFaceGeometry" +"('topo_boston', f.face_id) ) ) > \n" +" ST_Area(topology.ST_GetFaceGeometry('topo_boston', f." +"face_id))*0.5\n" +" )\n" +" GROUP BY b.gid) As foo\n" +"WHERE foo.gid = bg.gid; \n" +"\n" +"-- and if we wanted to convert our topogeometry back\n" +"-- to a denomalized geometry aligned with our faces and edges \n" +"-- cast the topo to a geometry\n" +"-- The really cool thing is my new geometries\n" +"-- are now aligned with my tiger street centerlines\n" +"UPDATE boston.blockgroups SET new_geom = topo::geometry;" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2247 +#, no-c-format +msgid "" +", , , , " +"" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2260 +#, no-c-format +msgid "toTopoGeom" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2262 +#, no-c-format +msgid "Creates a new topo geometry from a simple geometry" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2267 +#, no-c-format +msgid "" +"topogeometry toTopoGeom " +"geometry geom " +"varchar toponame " +"integer layer_id " +"float8 tolerance" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2284 +#, no-c-format +msgid "" +"Topological primitives required to represent the input geometry will be " +"added, possibly splitting existing ones. Pre-existing TopoGeometry objects " +"will retain their shapes." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2289 +#, no-c-format +msgid "" +"When tolerance is given it will be used to snap the input " +"geometry to existing primitives." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2298 +#, no-c-format +msgid "This is a full self-contained workflow" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2299 +#, no-c-format +msgid "" +"-- do this if you don't have a topology setup already\n" +"-- creates topology not allowing any tolerance\n" +"SELECT topology.CreateTopology('topo_boston_test', 2249);\n" +"-- create a new table\n" +"CREATE TABLE nei_topo(gid serial primary key, nei varchar(30));\n" +"--add a topogeometry column to it\n" +"SELECT topology.AddTopoGeometryColumn('topo_boston_test', 'public', " +"'nei_topo', 'topo', 'MULTIPOLYGON') As new_layer_id;\n" +"new_layer_id\n" +"-----------\n" +"1\n" +"\n" +"--use new layer id in populating the new topogeometry column\n" +"-- we add the topogeoms to the new layer with 0 tolerance\n" +"INSERT INTO nei_topo(nei, topo)\n" +"SELECT nei, topology.toTopoGeom(geom, 'topo_boston_test', 1)\n" +"FROM neighborhoods\n" +"WHERE gid BETWEEN 1 and 15;\n" +"\n" +"--use to verify what has happened --\n" +"SELECT * FROM \n" +" topology.TopologySummary('topo_boston_test'); \n" +" \n" +"-- summary--\n" +"Topology topo_boston_test (5), SRID 2249, precision 0\n" +"61 nodes, 87 edges, 35 faces, 15 topogeoms in 1 layers\n" +"Layer 1, type Polygonal (3), 15 topogeoms\n" +" Deploy: public.nei_topo.topo" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2305 +#, no-c-format +msgid "" +",, , " +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2312 +#, no-c-format +msgid "TopoElementArray_Agg" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2313 +#, no-c-format +msgid "" +"Returns a topoelementarray for a set of element_id, type " +"arrays (topoelements)" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2318 +#, no-c-format +msgid "" +"topoelementarray TopoElementArray_Agg topoelement set tefield" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2328 +#, no-c-format +msgid "" +"Used to create a from a set of ." +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2337 +#, no-c-format +msgid "" +"SELECT topology.TopoElementArray_Agg(ARRAY[e,t]) As tea\n" +" FROM generate_series(1,3) As e CROSS JOIN generate_series(1,4) As t;\n" +" tea\n" +"--------------------------------------------------------------------------\n" +"{{1,1},{1,2},{1,3},{1,4},{2,1},{2,2},{2,3},{2,4},{3,1},{3,2},{3,3},{3,4}}" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2341 extras_topology.xml:2394 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: title +#: extras_topology.xml:2347 +#, no-c-format +msgid "TopoGeometry Accessors" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2351 +#, no-c-format +msgid "GetTopoGeomElementArray" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2353 +#, no-c-format +msgid "" +"Returns a topoelementarray (an array of topoelements) " +"containing the topological elements and type of the given TopoGeometry " +"(primitive elements)" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2358 +#, no-c-format +msgid "" +"topoelementarray GetTopoGeomElementArray varchar toponame integer layer_id integer tg_id" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2366 +#, no-c-format +msgid "" +"topoelementarray topoelement GetTopoGeomElementArray topogeometry tg" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2376 +#, no-c-format +msgid "" +"Returns a containing the topological " +"elements and type of the given TopoGeometry (primitive elements). This is " +"similar to GetTopoGeomElements except it returns the elements as an array " +"rather than as a dataset." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2378 extras_topology.xml:2425 +#, no-c-format +msgid "" +"tg_id is the topogeometry id of the topogeometry object in the topology in " +"the layer denoted by layer_id in the topology.layer table." +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2399 +#, no-c-format +msgid "GetTopoGeomElements" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2401 +#, no-c-format +msgid "" +"Returns a set of topoelement objects containing the " +"topological element_id,element_type of the given TopoGeometry (primitive " +"elements)" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2406 +#, no-c-format +msgid "" +"setof topoelement GetTopoGeomElements varchar toponame integer layer_id integer tg_id" +msgstr "" + +#. Tag: funcprototype +#: extras_topology.xml:2414 +#, no-c-format +msgid "" +"setof topoelement GetTopoGeomElements topogeometry tg" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2424 +#, no-c-format +msgid "" +"Returns a set of element_id,element_type (topoelements) for a given " +"topogeometry object in toponame schema." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2441 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: title +#: extras_topology.xml:2448 +#, no-c-format +msgid "TopoGeometry Outputs" +msgstr "" + +#. Tag: refname +#: extras_topology.xml:2451 +#, no-c-format +msgid "AsGML" +msgstr "" + +#. Tag: refpurpose +#: extras_topology.xml:2453 +#, no-c-format +msgid "Returns the GML representation of a topogeometry." +msgstr "" + +#. Tag: funcsynopsis +#: extras_topology.xml:2457 +#, no-c-format +msgid "" +" text AsGML " +"topogeometry tg text AsGML topogeometry tg text nsprefix_in text AsGML topogeometry tg regclass " +"visitedTable " +" text AsGML " +"topogeometry tg " +"regclass visitedTable text nsprefix text AsGML topogeometry tg text nsprefix_in integer precision integer options text " +"AsGML topogeometry " +"tg text " +"nsprefix_in integer precision integer options regclass visitedTable " +" text AsGML " +"topogeometry tg " +"text nsprefix_in " +"integer precision " +"integer options " +"regclass visitedTable text idprefix text AsGML topogeometry tg text nsprefix_in integer precision integer options regclass " +"visitedTable text " +"idprefix int " +"gmlversion " +msgstr "" + +#. Tag: para +#: extras_topology.xml:2518 +#, no-c-format +msgid "" +"Returns the GML representation of a topogeometry in version GML3 format. If " +"no nsprefix_in is specified then gml " +"is used. Pass in an empty string for nsprefix to get a non-qualified name " +"space. The precision (default: 15) and options (default 1) parameters, if " +"given, are passed untouched to the underlying call to ST_AsGML." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2520 +#, no-c-format +msgid "" +"The visitedTable parameter, if given, is used for keeping " +"track of the visited Node and Edge elements so to use cross-references " +"(xlink:xref) rather than duplicating definitions. The table is expected to " +"have (at least) two integer fields: 'element_type' and 'element_id'. The " +"calling user must have both read and write privileges on the given table. " +"For best performance, an index should be defined on element_type and element_id, in that order. Such index would " +"be created automatically by adding a unique constraint to the fields. " +"Example:" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2526 +#, no-c-format +msgid "" +"CREATE TABLE visited (\n" +" element_type integer, element_id integer,\n" +" unique(element_type, element_id)\n" +");" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2529 +#, no-c-format +msgid "" +"The idprefix parameter, if given, will be prepended to " +"Edge and Node tag identifiers." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2531 +#, no-c-format +msgid "" +"The gmlver parameter, if given, will be passed to the " +"underlying ST_AsGML. Defaults to 3." +msgstr "" + +#. Tag: para +#: extras_topology.xml:2540 +#, no-c-format +msgid "" +"This uses the topo geometry we created in " +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2541 +#, no-c-format +msgid "" +"SELECT topology.AsGML(topo) As rdgml \n" +" FROM ri.roads \n" +" WHERE road_name = 'Unknown';\n" +" \n" +"-- rdgml--\n" +"\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 384744 236928 " +"384750 236923 384769 236911 384799 236895 384811 236890 \n" +" 384833 236884 384844 236882 384866 236881 384879 " +"236883 384954 236898 385087 236932 385117 236938 \n" +" 385167 236938 385203 236941 385224 236946 385233 " +"236950 385241 236956 385254 236971 \n" +" 385260 236979 385268 236999 385273 237018 385273 " +"237037 385271 237047 385267 237057 385225 237125 \n" +" 385210 237144 385192 237161 385167 237192 385162 " +"237202 385159 237214 385159 237227 385162 237241 \n" +" 385166 237256 385196 237324 385209 237345 385234 " +"237375 385237 237383 385238 237399 385236 237407 \n" +" 385227 237419 385213 237430 385193 237439 385174 " +"237451 385170 237455 385169 237460 385171 237475 \n" +" 385181 237503 385190 237521 385200 237533 385206 " +"237538 385213 237541 385221 237542 385235 237540 385242 237541 \n" +" 385249 237544 385260 237555 385270 237570 385289 " +"237584 385292 237589 385291 237596 385284 237630\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +"]]>" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2542 +#, no-c-format +msgid "Same exercise as previous without namespace" +msgstr "" + +#. Tag: programlisting +#: extras_topology.xml:2543 +#, no-c-format +msgid "" +"SELECT topology.AsGML(topo,'') As rdgml \n" +" FROM ri.roads \n" +" WHERE road_name = 'Unknown';\n" +" \n" +"-- rdgml--\n" +"\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 384744 236928 384750 " +"236923 384769 236911 384799 236895 384811 236890 \n" +" 384833 236884 384844 236882 384866 236881 384879 " +"236883 384954 236898 385087 236932 385117 236938 \n" +" 385167 236938 385203 236941 385224 236946 385233 " +"236950 385241 236956 385254 236971 \n" +" 385260 236979 385268 236999 385273 237018 385273 " +"237037 385271 237047 385267 237057 385225 237125 \n" +" 385210 237144 385192 237161 385167 237192 385162 " +"237202 385159 237214 385159 237227 385162 237241 \n" +" 385166 237256 385196 237324 385209 237345 385234 " +"237375 385237 237383 385238 237399 385236 237407 \n" +" 385227 237419 385213 237430 385193 237439 385174 " +"237451 385170 237455 385169 237460 385171 237475 \n" +" 385181 237503 385190 237521 385200 237533 385206 " +"237538 385213 237541 385221 237542 385235 237540 385242 237541 \n" +" 385249 237544 385260 237555 385270 237570 385289 " +"237584 385292 237589 385291 237596 385284 237630\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +"]]>" +msgstr "" + +#. Tag: para +#: extras_topology.xml:2549 +#, no-c-format +msgid ", " +msgstr "" diff --git a/doc/po/it_IT/faq.xml.po b/doc/po/it_IT/faq.xml.po new file mode 100644 index 000000000..9f432fb8a --- /dev/null +++ b/doc/po/it_IT/faq.xml.po @@ -0,0 +1,667 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: faq.xml:3 +#, no-c-format +msgid "PostGIS Frequently Asked Questions" +msgstr "" + +#. Tag: para +#: faq.xml:8 +#, no-c-format +msgid "" +"My applications and desktop tools worked with PostGIS 1.5,but they don't " +"work with PostGIS 2.0. How do I fix this?" +msgstr "" + +#. Tag: para +#: faq.xml:12 +#, no-c-format +msgid "" +"A lot of deprecated functions were removed from the PostGIS code base in " +"PostGIS 2.0. This has affected applications in addition to third-party tools " +"such as Geoserver, MapServer, QuantumGIS, and OpenJump to name a few. There " +"are a couple of ways to resolve this. For the third-party apps, you can try " +"to upgrade to the latest versions of these which have many of these issues " +"fixed. For your own code, you can change your code to not use the functions " +"removed. Most of these functions are non ST_ aliases of ST_Union, ST_Length " +"etc. and as a last resort, install the whole of legacy.sql or just the portions of legacy.sql you need." +msgstr "" + +#. Tag: para +#: faq.xml:18 +#, no-c-format +msgid "" +"The legacy.sql file is located in the same folder as " +"postgis.sql. You can install this file after you have installed postgis.sql " +"and spatial_ref_sys.sql to get back all the 200 some-odd old functions we " +"removed." +msgstr "" + +#. Tag: para +#: faq.xml:24 +#, no-c-format +msgid "" +"I'm running PostgreSQL 9.0 and I can no longer read/view geometries in " +"OpenJump, Safe FME, and some other tools?" +msgstr "" + +#. Tag: para +#: faq.xml:28 +#, no-c-format +msgid "" +"In PostgreSQL 9.0+, the default encoding for bytea data has been changed to " +"hex and older JDBC drivers still assume escape format. This has affected " +"some applications such as Java applications using older JDBC drivers or .NET " +"applications that use the older npgsql driver that expect the old behavior " +"of ST_AsBinary. There are two approaches to getting this to work again." +msgstr "" + +#. Tag: para +#: faq.xml:32 +#, no-c-format +msgid "" +"You can upgrade your JDBC driver to the latest PostgreSQL 9.0 version which " +"you can get from http://jdbc.postgresql.org/download.html" +msgstr "" + +#. Tag: para +#: faq.xml:34 +#, no-c-format +msgid "" +"If you are running a .NET app, you can use Npgsql 2.0.11 or higher which you " +"can download from http://pgfoundry.org/frs/?group_id=1000140 and as " +"described on Francisco Figueiredo's NpgSQL 2.0.11 released blog entry" +msgstr "" + +#. Tag: para +#: faq.xml:38 +#, no-c-format +msgid "" +"If upgrading your PostgreSQL driver is not an option, then you can set the " +"default back to the old behavior with the following change:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:39 +#, no-c-format +msgid "ALTER DATABASE mypostgisdb SET bytea_output='escape';" +msgstr "" + +#. Tag: para +#: faq.xml:46 +#, no-c-format +msgid "" +"I tried to use PgAdmin to view my geometry column and it is blank, what " +"gives?" +msgstr "" + +#. Tag: para +#: faq.xml:50 +#, no-c-format +msgid "" +"PgAdmin doesn't show anything for large geometries. The best ways to verify " +"you do have data in your geometry columns are?" +msgstr "" + +#. Tag: programlisting +#: faq.xml:53 +#, no-c-format +msgid "" +"-- this should return no records if all your geom fields are filled " +"in \n" +"SELECT somefield FROM mytable WHERE geom IS NULL;" +msgstr "" + +#. Tag: programlisting +#: faq.xml:55 +#, no-c-format +msgid "" +"-- To tell just how large your geometry is do a query of the form\n" +"--which will tell you the most number of points you have in any of your " +"geometry columns\n" +"SELECT MAX(ST_NPoints(geom)) FROM sometable;" +msgstr "" + +#. Tag: para +#: faq.xml:61 +#, no-c-format +msgid "What kind of geometric objects can I store?" +msgstr "" + +#. Tag: para +#: faq.xml:65 +#, no-c-format +msgid "" +"You can store point, line, polygon, multipoint, multiline, multipolygon, and " +"geometrycollections. In PostGIS 2.0 and above you can also store TINS and " +"Polyhedral Surfaces in the basic geometry type. These are specified in the " +"Open GIS Well Known Text Format (with XYZ,XYM,XYZM extensions). There are " +"three data types currently supported. The standard OGC geometry data type " +"which uses a planar coordinate system for measurement, the geography data " +"type which uses a geodetic coordinate system (not OGC, but you'll find a " +"similar type in Microsoft SQL Server 2008+). Only WGS 84 long lat " +"(SRID:4326) is supported by the geography data type. The newest family " +"member of the PostGIS spatial type family is raster for storing and " +"analyzing raster data. Raster has its very own FAQ. Refer to and for more details." +msgstr "" + +#. Tag: para +#: faq.xml:78 +#, no-c-format +msgid "I'm all confused. Which data store should I use geometry or geography?" +msgstr "" + +#. Tag: para +#: faq.xml:82 +#, no-c-format +msgid "" +"Short Answer: geography is a new data type that supports long range " +"distances measurements, but most computations on it are currently slower " +"than they are on geometry. If you use geography -- you don't need to learn " +"much about planar coordinate systems. Geography is generally best if all you " +"care about is measuring distances and lengths and you have data from all " +"over the world. Geometry data type is an older data type that has many more " +"functions supporting it, enjoys greater support from third party tools, and " +"operations on it are generally faster -- sometimes as much as 10 fold faster " +"for larger geometries. Geometry is best if you are pretty comfortable with " +"spatial reference systems or you are dealing with localized data where all " +"your data fits in a single spatial " +"reference system (SRID), or you need to do a lot of spatial " +"processing. Note: It is fairly easy to do one-off conversions between the " +"two types to gain the benefits of each. Refer to to see what is currently supported and what " +"is not." +msgstr "" + +#. Tag: para +#: faq.xml:93 +#, no-c-format +msgid "" +"Long Answer: Refer to our more lengthy discussion in the and function type matrix." +msgstr "" + +#. Tag: para +#: faq.xml:101 +#, no-c-format +msgid "" +"I have more intense questions about geography, such as how big of a " +"geographic region can I stuff in a geography column and still get reasonable " +"answers. Are there limitations such as poles, everything in the field must " +"fit in a hemisphere (like SQL Server 2008 has), speed etc?" +msgstr "" + +#. Tag: para +#: faq.xml:105 +#, no-c-format +msgid "" +"Your questions are too deep and complex to be adequately answered in this " +"section. Please refer to our ." +msgstr "" + +#. Tag: para +#: faq.xml:112 +#, no-c-format +msgid "How do I insert a GIS object into the database?" +msgstr "" + +#. Tag: para +#: faq.xml:116 +#, no-c-format +msgid "" +"First, you need to create a table with a column of type \"geometry\" or " +"\"geography\" to hold your GIS data. Storing geography type data is a little " +"different than storing geometry. Refer to for details on storing geography." +msgstr "" + +#. Tag: para +#: faq.xml:120 +#, no-c-format +msgid "" +"For geometry: Connect to your database with psql and " +"try the following SQL:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:124 +#, no-c-format +msgid "" +"CREATE TABLE gtest ( ID int4, NAME varchar(20) );\n" +"SELECT AddGeometryColumn('', 'gtest','geom',-1,'LINESTRING',2);" +msgstr "" + +#. Tag: para +#: faq.xml:126 +#, no-c-format +msgid "" +"If the geometry column addition fails, you probably have not loaded the " +"PostGIS functions and objects into this database. See the ." +msgstr "" + +#. Tag: para +#: faq.xml:130 +#, no-c-format +msgid "" +"Then, you can insert a geometry into the table using a SQL insert statement. " +"The GIS object itself is formatted using the OpenGIS Consortium \"well-known " +"text\" format:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:134 +#, no-c-format +msgid "" +"INSERT INTO gtest (ID, NAME, GEOM) \n" +"VALUES (\n" +" 1, \n" +" 'First Geometry', \n" +" ST_GeomFromText('LINESTRING(2 3,4 5,6 5,7 8)', -1)\n" +");" +msgstr "" + +#. Tag: para +#: faq.xml:136 +#, no-c-format +msgid "" +"For more information about other GIS objects, see the object reference." +msgstr "" + +#. Tag: para +#: faq.xml:139 +#, no-c-format +msgid "To view your GIS data in the table:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:141 +#, no-c-format +msgid "SELECT id, name, ST_AsText(geom) AS geom FROM gtest;" +msgstr "" + +#. Tag: para +#: faq.xml:143 +#, no-c-format +msgid "The return value should look something like this:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:145 +#, no-c-format +msgid "" +"id | name | geom\n" +"----+----------------+-----------------------------\n" +" 1 | First Geometry | LINESTRING(2 3,4 5,6 5,7 8) \n" +"(1 row)" +msgstr "" + +#. Tag: para +#: faq.xml:151 +#, no-c-format +msgid "How do I construct a spatial query?" +msgstr "" + +#. Tag: para +#: faq.xml:155 +#, no-c-format +msgid "" +"The same way you construct any other database query, as an SQL combination " +"of return values, functions, and boolean tests." +msgstr "" + +#. Tag: para +#: faq.xml:158 +#, no-c-format +msgid "" +"For spatial queries, there are two issues that are important to keep in mind " +"while constructing your query: is there a spatial index you can make use of; " +"and, are you doing expensive calculations on a large number of geometries." +msgstr "" + +#. Tag: para +#: faq.xml:163 +#, no-c-format +msgid "" +"In general, you will want to use the \"intersects operator\" (&&) " +"which tests whether the bounding boxes of features intersect. The reason the " +"&& operator is useful is because if a spatial index is available to " +"speed up the test, the && operator will make use of this. This can " +"make queries much much faster." +msgstr "" + +#. Tag: para +#: faq.xml:170 +#, no-c-format +msgid "" +"You will also make use of spatial functions, such as Distance(), " +"ST_Intersects(), ST_Contains() and ST_Within(), among others, to narrow down " +"the results of your search. Most spatial queries include both an indexed " +"test and a spatial function test. The index test serves to limit the number " +"of return tuples to only tuples that might meet the " +"condition of interest. The spatial functions are then use to test the " +"condition exactly." +msgstr "" + +#. Tag: programlisting +#: faq.xml:178 +#, no-c-format +msgid "" +"SELECT id, the_geom \n" +"FROM thetable \n" +"WHERE \n" +" ST_Contains(the_geom,'POLYGON((0 0, 0 10, 10 10, 10 0, 0 0))');" +msgstr "" + +#. Tag: para +#: faq.xml:184 +#, no-c-format +msgid "How do I speed up spatial queries on large tables?" +msgstr "" + +#. Tag: para +#: faq.xml:188 +#, no-c-format +msgid "" +"Fast queries on large tables is the raison d'etre of " +"spatial databases (along with transaction support) so having a good index is " +"important." +msgstr "" + +#. Tag: para +#: faq.xml:192 +#, no-c-format +msgid "" +"To build a spatial index on a table with a geometry " +"column, use the \"CREATE INDEX\" function as follows:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:196 +#, no-c-format +msgid "" +"CREATE INDEX [indexname] ON [tablename] USING GIST ( [geometrycolumn] );" +msgstr "" + +#. Tag: para +#: faq.xml:198 +#, no-c-format +msgid "" +"The \"USING GIST\" option tells the server to use a GiST (Generalized Search " +"Tree) index." +msgstr "" + +#. Tag: para +#: faq.xml:202 +#, no-c-format +msgid "" +"GiST indexes are assumed to be lossy. Lossy indexes uses a proxy object (in " +"the spatial case, a bounding box) for building the index." +msgstr "" + +#. Tag: para +#: faq.xml:207 +#, no-c-format +msgid "" +"You should also ensure that the PostgreSQL query planner has enough " +"information about your index to make rational decisions about when to use " +"it. To do this, you have to \"gather statistics\" on your geometry tables." +msgstr "" + +#. Tag: para +#: faq.xml:212 +#, no-c-format +msgid "" +"For PostgreSQL 8.0.x and greater, just run the VACUUM ANALYZE command." +msgstr "" + +#. Tag: para +#: faq.xml:215 +#, no-c-format +msgid "" +"For PostgreSQL 7.4.x and below, run the SELECT UPDATE_GEOMETRY_STATS" +"() command." +msgstr "" + +#. Tag: para +#: faq.xml:222 +#, no-c-format +msgid "Why aren't PostgreSQL R-Tree indexes supported?" +msgstr "" + +#. Tag: para +#: faq.xml:226 +#, no-c-format +msgid "" +"Early versions of PostGIS used the PostgreSQL R-Tree indexes. However, " +"PostgreSQL R-Trees have been completely discarded since version 0.6, and " +"spatial indexing is provided with an R-Tree-over-GiST scheme." +msgstr "" + +#. Tag: para +#: faq.xml:231 +#, no-c-format +msgid "" +"Our tests have shown search speed for native R-Tree and GiST to be " +"comparable. Native PostgreSQL R-Trees have two limitations which make them " +"undesirable for use with GIS features (note that these limitations are due " +"to the current PostgreSQL native R-Tree implementation, not the R-Tree " +"concept in general):" +msgstr "" + +#. Tag: para +#: faq.xml:239 +#, no-c-format +msgid "" +"R-Tree indexes in PostgreSQL cannot handle features which are larger than 8K " +"in size. GiST indexes can, using the \"lossy\" trick of substituting the " +"bounding box for the feature itself." +msgstr "" + +#. Tag: para +#: faq.xml:246 +#, no-c-format +msgid "" +"R-Tree indexes in PostgreSQL are not \"null safe\", so building an index on " +"a geometry column which contains null geometries will fail." +msgstr "" + +#. Tag: para +#: faq.xml:256 +#, no-c-format +msgid "" +"Why should I use the AddGeometryColumn() function and all " +"the other OpenGIS stuff?" +msgstr "" + +#. Tag: para +#: faq.xml:261 +#, no-c-format +msgid "" +"If you do not want to use the OpenGIS support functions, you do not have to. " +"Simply create tables as in older versions, defining your geometry columns in " +"the CREATE statement. All your geometries will have SRIDs of -1, and the " +"OpenGIS meta-data tables will not be filled in " +"properly. However, this will cause most applications based on PostGIS to " +"fail, and it is generally suggested that you do use " +"AddGeometryColumn() to create geometry tables." +msgstr "" + +#. Tag: para +#: faq.xml:270 +#, no-c-format +msgid "" +"MapServer is one application which makes use of the " +"geometry_columns meta-data. Specifically, MapServer can " +"use the SRID of the geometry column to do on-the-fly reprojection of " +"features into the correct map projection." +msgstr "" + +#. Tag: para +#: faq.xml:279 +#, no-c-format +msgid "" +"What is the best way to find all objects within a radius of another object?" +msgstr "" + +#. Tag: para +#: faq.xml:284 +#, no-c-format +msgid "" +"To use the database most efficiently, it is best to do radius queries which " +"combine the radius test with a bounding box test: the bounding box test uses " +"the spatial index, giving fast access to a subset of data which the radius " +"test is then applied to." +msgstr "" + +#. Tag: para +#: faq.xml:289 +#, no-c-format +msgid "" +"The ST_DWithin(geometry, geometry, distance) function is " +"a handy way of performing an indexed distance search. It works by creating a " +"search rectangle large enough to enclose the distance radius, then " +"performing an exact distance search on the indexed subset of results." +msgstr "" + +#. Tag: para +#: faq.xml:295 +#, no-c-format +msgid "" +"For example, to find all objects with 100 meters of POINT(1000 1000) the " +"following query would work well:" +msgstr "" + +#. Tag: programlisting +#: faq.xml:298 +#, no-c-format +msgid "" +"SELECT * FROM geotable \n" +"WHERE ST_DWithin(geocolumn, 'POINT(1000 1000)', 100.0);" +msgstr "" + +#. Tag: para +#: faq.xml:304 +#, no-c-format +msgid "How do I perform a coordinate reprojection as part of a query?" +msgstr "" + +#. Tag: para +#: faq.xml:309 +#, no-c-format +msgid "" +"To perform a reprojection, both the source and destination coordinate " +"systems must be defined in the SPATIAL_REF_SYS table, and the geometries " +"being reprojected must already have an SRID set on them. Once that is done, " +"a reprojection is as simple as referring to the desired destination SRID. " +"The below projects a geometry to NAD 83 long lat. The below will only work " +"if the srid of the_geom is not -1 (not undefined spatial ref)" +msgstr "" + +#. Tag: programlisting +#: faq.xml:316 +#, no-c-format +msgid "SELECT ST_Transform(the_geom,4269) FROM geotable;" +msgstr "" + +#. Tag: para +#: faq.xml:322 +#, no-c-format +msgid "" +"I did an ST_AsEWKT and ST_AsText on my rather large geometry and it returned " +"blank field. What gives?" +msgstr "" + +#. Tag: para +#: faq.xml:326 +#, no-c-format +msgid "" +"You are probably using PgAdmin or some other tool that doesn't output large " +"text. If your geometry is big enough, it will appear blank in these tools. " +"Use PSQL if you really need to see it or output it in WKT." +msgstr "" + +#. Tag: programlisting +#: faq.xml:329 +#, no-c-format +msgid "" +"--To check number of geometries are really blank\n" +" SELECT count(gid) FROM geotable WHERE " +"the_geom IS NULL;" +msgstr "" + +#. Tag: para +#: faq.xml:335 +#, no-c-format +msgid "" +"When I do an ST_Intersects, it says my two geometries don't intersect when I " +"KNOW THEY DO. What gives?" +msgstr "" + +#. Tag: para +#: faq.xml:339 +#, no-c-format +msgid "" +"This generally happens in two common cases. Your geometry is invalid -- " +"check or you are assuming they intersect " +"because ST_AsText truncates the numbers and you have lots of decimals after " +"it is not showing you." +msgstr "" + +#. Tag: para +#: faq.xml:347 +#, no-c-format +msgid "" +"I am releasing software that uses PostGIS, does that mean my software has to " +"be licensed using the GPL like PostGIS? Will I have to publish all my code " +"if I use PostGIS?" +msgstr "" + +#. Tag: para +#: faq.xml:351 +#, no-c-format +msgid "" +"Almost certainly not. As an example, consider Oracle database running on " +"Linux. Linux is GPL, Oracle is not, does Oracle running on Linux have to be " +"distributed using the GPL? No. So your software can use a PostgreSQL/PostGIS " +"database as much as it wants and be under any license you like." +msgstr "" + +#. Tag: para +#: faq.xml:352 +#, no-c-format +msgid "" +"The only exception would be if you made changes to the PostGIS source code, " +"and distributed your changed version of PostGIS. In that case you would have " +"to share the code of your changed PostGIS (but not the code of applications " +"running on top of it). Even in this limited case, you would still only have " +"to distribute source code to people you distributed binaries to. The GPL " +"does not require that you publish your source code, " +"only that you share it with people you give binaries to." +msgstr "" diff --git a/doc/po/it_IT/faq_raster.xml.po b/doc/po/it_IT/faq_raster.xml.po new file mode 100644 index 000000000..6785b18cd --- /dev/null +++ b/doc/po/it_IT/faq_raster.xml.po @@ -0,0 +1,658 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: faq_raster.xml:3 +#, no-c-format +msgid "PostGIS Raster Frequently Asked Questions" +msgstr "" + +#. Tag: para +#: faq_raster.xml:9 +#, no-c-format +msgid "Where can I find out more about the PostGIS Raster Project?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:13 +#, no-c-format +msgid "" +"Refer to the PostGIS Raster home page." +msgstr "" + +#. Tag: para +#: faq_raster.xml:19 +#, no-c-format +msgid "" +"Are there any books or tutorials to get me started with this wonderful " +"invention?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:23 +#, no-c-format +msgid "" +"There is a full length beginner tutorial Intersecting vector buffers with large " +"raster coverage using PostGIS Raster. Jorge has a series of blog " +"articles on PostGIS Raster that demonstrate how to load raster data as well " +"as cross compare to same tasks in Oracle GeoRaster. Check out Jorge's PostGIS " +"Raster / Oracle GeoRaster Series. There is a whole chapter (more " +"than 35 pages of content) dedicated to PostGIS Raster with free code and " +"data downloads at PostGIS in " +"Action - Raster chapter. You can buy PostGIS in Action now from Manning in hard-copy " +"(significant discounts for bulk purchases) or just the E-book format. You " +"can also buy from Amazon and various other book distributors. All hard-copy " +"books come with a free coupon to download the E-book version." +msgstr "" + +#. Tag: para +#: faq_raster.xml:30 +#, no-c-format +msgid "" +"Here is a review from a PostGIS Raster user PostGIS raster applied to " +"land classification urban forestry" +msgstr "" + +#. Tag: para +#: faq_raster.xml:37 +#, no-c-format +msgid "How do I install Raster support in my PostGIS database?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:41 +#, no-c-format +msgid "" +"The easiest is to download binaries for PostGIS and Raster which are " +"currently available for windows and latest versions of Mac OSX. First you " +"need a working PostGIS 2.0.0 or above and be running PostgreSQL 8.4, 9.0, or " +"9.1. Note in PostGIS 2.0 PostGIS Raster is fully integrated, so it will be " +"compiled when you compile PostGIS." +msgstr "" + +#. Tag: para +#: faq_raster.xml:43 +#, no-c-format +msgid "" +"Instructions for installing and running under windows are available at " +"How to Install and Configure PostGIS " +"raster on windows" +msgstr "" + +#. Tag: para +#: faq_raster.xml:44 +#, no-c-format +msgid "" +"If you are on windows, you can compile yourself, or use the pre-" +"compiled PostGIS Raster windows binaries. If you are on Mac OSX " +"Leopard or Snow Leopard, there are binaries available at Kyng Chaos Mac OSX PostgreSQL/GIS " +"binaries." +msgstr "" + +#. Tag: para +#: faq_raster.xml:50 +#, no-c-format +msgid "" +"Then to enable raster support in your database, run the rtpostgis.sql file " +"in your database. To upgrade an existing install use " +"rtpostgis_upgrade_minor..sql instead of rtpostgis.sql" +msgstr "" + +#. Tag: para +#: faq_raster.xml:51 +#, no-c-format +msgid "" +"For other platforms, you generally need to compile yourself. Dependencies " +"are PostGIS and GDAL. For more details about compiling from source, please " +"refer to Installing PostGIS " +"Raster from source (in prior versions of PostGIS)" +msgstr "" + +#. Tag: para +#: faq_raster.xml:57 +#, no-c-format +msgid "" +"I get error could not load library \"C:/Program Files/PostgreSQL/8.4/lib/" +"rtpostgis.dll\": The specified module could not be found. or could not load " +"library on Linux when trying to run rtpostgis.sql" +msgstr "" + +#. Tag: para +#: faq_raster.xml:62 +#, no-c-format +msgid "" +"rtpostgis.so/dll is built with dependency on libgdal.dll/so. Make sure for " +"Windows you have libgdal-1.dll in the bin folder of your PostgreSQL install. " +"For Linux libgdal has to be in your path or bin folder." +msgstr "" + +#. Tag: para +#: faq_raster.xml:64 +#, no-c-format +msgid "" +"You may also run into different errors if you don't have PostGIS installed " +"in your database. Make sure to install PostGIS first in your database before " +"trying to install the raster support." +msgstr "" + +#. Tag: para +#: faq_raster.xml:71 +#, no-c-format +msgid "How do I load Raster data into PostGIS?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:75 +#, no-c-format +msgid "" +"The latest version of PostGIS comes packaged with a raster2pgsql raster loader executable capable of loading many kinds of rasters " +"and also generating lower resolution overviews without any additional " +"software. Please refer to for more " +"details. Pre-2.0 versions came with a raster2pgsql.py " +"that required python with numpy and GDAL. This is no longer needed." +msgstr "" + +#. Tag: para +#: faq_raster.xml:81 +#, no-c-format +msgid "What kind of raster file formats can I load into my database?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:85 +#, no-c-format +msgid "" +"Any that your GDAL library supports. GDAL supported formats are documented " +"GDAL File Formats." +msgstr "" + +#. Tag: para +#: faq_raster.xml:86 +#, no-c-format +msgid "" +"Your particular GDAL install may not support all formats. To verify the ones " +"supported by your particular GDAL install, you can use" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:87 +#, no-c-format +msgid "raster2pgsql -G" +msgstr "" + +#. Tag: para +#: faq_raster.xml:93 +#, no-c-format +msgid "Can I export my PostGIS raster data to other raster formats?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:97 +#, no-c-format +msgid "Yes" +msgstr "" + +#. Tag: para +#: faq_raster.xml:98 +#, no-c-format +msgid "" +"GDAL 1.7+ has a PostGIS raster driver, but is only compiled in if you choose " +"to compile with PostgreSQL support." +msgstr "" + +#. Tag: para +#: faq_raster.xml:99 +#, no-c-format +msgid "" +"The driver currently doesn't support irregularly blocked rasters, although " +"you can store irregularly blocked rasters in PostGIS raster data type." +msgstr "" + +#. Tag: para +#: faq_raster.xml:101 +#, no-c-format +msgid "" +"If you are compiling from source, you need to include in your configure " +"--with-pg=path/to/pg_config to enable the " +"driver. Refer to GDAL Build Hints for tips on building GDAL against in various OS " +"platforms." +msgstr "" + +#. Tag: para +#: faq_raster.xml:106 +#, no-c-format +msgid "" +"If your version of GDAL is compiled with the PostGIS Raster driver you " +"should see PostGIS Raster in list when you do" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:108 +#, no-c-format +msgid "gdalinfo --formats" +msgstr "" + +#. Tag: para +#: faq_raster.xml:110 +#, no-c-format +msgid "To get a summary about your raster via GDAL use gdalinfo:" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:111 +#, no-c-format +msgid "" +"gdalinfo \"PG:host=localhost port=5432 dbname='mygisdb' user='postgres' " +"password='whatever' schema='someschema' table=sometable\"" +msgstr "" + +#. Tag: para +#: faq_raster.xml:114 +#, no-c-format +msgid "" +"To export data to other raster formats, use gdal_translate the below will " +"export all data from a table to a PNG file at 10% size." +msgstr "" + +#. Tag: para +#: faq_raster.xml:116 +#, no-c-format +msgid "" +"Depending on your pixel band types, some translations may not work if the " +"export format does not support that Pixel type. For example floating point " +"band types and 32 bit unsigned ints will not translate easily to JPG or some " +"others." +msgstr "" + +#. Tag: para +#: faq_raster.xml:119 +#, no-c-format +msgid "Here is an example simple translation" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:120 +#, no-c-format +msgid "" +"gdal_translate -of PNG -outsize 10% 10% \"PG:host=localhost dbname='mygisdb' " +"user='postgres' password=whatever' schema='someschema' table=sometable\" C:" +"\\somefile.png" +msgstr "" + +#. Tag: para +#: faq_raster.xml:121 +#, no-c-format +msgid "" +"You can also use SQL where clauses in your export using the where=... in " +"your driver connection string. Below are some using a where clause" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:123 +#, no-c-format +msgid "" +"gdal_translate -of PNG -outsize 10% 10% \"PG:host=localhost dbname='mygisdb' " +"user='postgres' password=whatever' schema='someschema' table=sometable where=" +"\"owner='jimmy'\" \" C:\\somefile.png" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:124 +#, no-c-format +msgid "" +"gdal_translate -of PNG -outsize 10% 10% \"PG:host=localhost dbname='mygisdb' " +"user='postgres' password=whatever' schema='someschema' table=sometable " +"where='ST_Intersects(rast, ST_SetSRID(ST_Point(-71.032,42.3793),4326) )' \" " +"C:\\intersectregion.png" +msgstr "" + +#. Tag: para +#: faq_raster.xml:125 +#, no-c-format +msgid "" +"To see more examples and syntax refer to Reading Raster Data of PostGIS Raster section" +msgstr "" + +#. Tag: para +#: faq_raster.xml:130 +#, no-c-format +msgid "" +"Are their binaries of GDAL available already compiled with PostGIS Raster " +"suppport?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:132 +#, no-c-format +msgid "" +"Yes. Check out the page GDAL Binaries page. Any compiled with " +"PostgreSQL support should have PostGIS Raster in them." +msgstr "" + +#. Tag: para +#: faq_raster.xml:134 +#, no-c-format +msgid "" +"We know for sure the following windows binaries have PostGIS Raster built in." +msgstr "" + +#. Tag: para +#: faq_raster.xml:135 +#, no-c-format +msgid "" +"FWTools latest stable version " +"for Windows is compiled with Raster support." +msgstr "" + +#. Tag: para +#: faq_raster.xml:136 +#, no-c-format +msgid "" +"PostGIS Raster is undergoing many changes. If you want to get the latest " +"nightly build for Windows -- then check out the Tamas Szekeres nightly " +"builds built with Visual Studio which contain GDAL trunk, Python Bindings " +"and MapServer executables and PostGIS Raster driver built-in. Just click the " +"SDK bat and run your commands from there. http://vbkto.dyndns.org/sdk/. Also available are VS " +"project files." +msgstr "" + +#. Tag: para +#: faq_raster.xml:145 +#, no-c-format +msgid "What tools can I use to view PostGIS raster data?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:149 +#, no-c-format +msgid "" +"You can use MapServer compiled with GDAL 1.7+ and PostGIS Raster driver " +"support to view Raster data. QuantumGIS (QGIS) now supports viewing of " +"PostGIS Raster if you have PostGIS raster driver installed." +msgstr "" + +#. Tag: para +#: faq_raster.xml:151 +#, no-c-format +msgid "" +"In theory any tool that renders data using GDAL can support PostGIS raster " +"data or support it with fairly minimal effort. Again for Windows, Tamas' " +"binaries http://vbkto.dyndns.org/" +"sdk/ are a good choice if you don't want the hassle of having to " +"setup to compile your own." +msgstr "" + +#. Tag: para +#: faq_raster.xml:158 +#, no-c-format +msgid "How can I add a PostGIS raster layer to my MapServer map?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:162 +#, no-c-format +msgid "" +"First you need GDAL 1.7 or higher compiled with PostGIS raster support. GDAL " +"1.8 or above is preferred since many issues have been fixed in 1.8 and more " +"PostGIS raster issues fixed in trunk version." +msgstr "" + +#. Tag: para +#: faq_raster.xml:164 +#, no-c-format +msgid "" +"You can much like you can with any other raster. Refer to MapServer Raster processing " +"options for list of various processing functions you can use with " +"MapServer raster layers." +msgstr "" + +#. Tag: para +#: faq_raster.xml:167 +#, no-c-format +msgid "" +"What makes PostGIS raster data particularly interesting, is that since each " +"tile can have various standard database columns, you can segment it in your " +"data source" +msgstr "" + +#. Tag: para +#: faq_raster.xml:169 +#, no-c-format +msgid "" +"Below is an example of how you would define a PostGIS raster layer in " +"MapServer." +msgstr "" + +#. Tag: para +#: faq_raster.xml:170 +#, no-c-format +msgid "" +"The mode=2 is required for tiled rasters and was added in PostGIS 2.0 and " +"GDAL 1.8 drivers. This does not exist in GDAL 1.7 drivers." +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:171 +#, no-c-format +msgid "" +"-- displaying raster with standard raster options\n" +"LAYER\n" +" NAME coolwktraster\n" +" TYPE raster\n" +" STATUS ON\n" +" DATA \"PG:host=localhost port=5432 dbname='somedb' user='someuser' " +"password='whatever' \n" +" schema='someschema' table='cooltable' mode='2'\" \n" +" PROCESSING \"NODATA=0\"\n" +" PROCESSING \"SCALE=AUTO\"\n" +" #... other standard raster processing functions here\n" +" #... classes are optional but useful for 1 band data\n" +" CLASS\n" +" NAME \"boring\"\n" +" EXPRESSION ([pixel] < 20)\n" +" COLOR 250 250 250\n" +" END\n" +" CLASS\n" +" NAME \"mildly interesting\"\n" +" EXPRESSION ([pixel] > 20 AND [pixel] < 1000)\n" +" COLOR 255 0 0\n" +" END\n" +" CLASS\n" +" NAME \"very interesting\"\n" +" EXPRESSION ([pixel] >= 1000)\n" +" COLOR 0 255 0\n" +" END\n" +"END" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:173 +#, no-c-format +msgid "" +"-- displaying raster with standard raster options and a where clause\n" +"LAYER\n" +" NAME soil_survey2009\n" +" TYPE raster\n" +" STATUS ON\n" +" DATA \"PG:host=localhost port=5432 dbname='somedb' user='someuser' " +"password='whatever' \n" +" schema='someschema' table='cooltable' " +"where='survey_year=2009' mode='2'\" \n" +" PROCESSING \"NODATA=0\"\n" +" #... other standard raster processing functions here\n" +" #... classes are optional but useful for 1 band data\n" +"END" +msgstr "" + +#. Tag: para +#: faq_raster.xml:181 +#, no-c-format +msgid "What functions can I currently use with my raster data?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:185 +#, no-c-format +msgid "" +"Refer to the list of . There are more, but " +"this is still a work in progress." +msgstr "" + +#. Tag: para +#: faq_raster.xml:187 +#, no-c-format +msgid "" +"Refer to the PostGIS Raster roadmap page for details of what " +"you can expect in the future." +msgstr "" + +#. Tag: para +#: faq_raster.xml:195 +#, no-c-format +msgid "" +"I am getting error ERROR: function st_intersects(raster, unknown) is not " +"unique or st_union(geometry,text) is not unique. How do I fix?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:199 +#, no-c-format +msgid "" +"The function is not unique error happens if one of your arguments is a " +"textual representation of a geometry instead of a geometry. In these cases, " +"PostgreSQL marks the textual representation as an unknown type, which means " +"it can fall into the st_intersects(raster, geometry) or st_intersects(raster," +"raster) thus resulting in a non-unique case since both functions can in " +"theory support your request. To prevent this, you need to cast the geometry " +"to a geometry." +msgstr "" + +#. Tag: para +#: faq_raster.xml:200 +#, no-c-format +msgid "For example if your code looks like this:" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:201 +#, no-c-format +msgid "" +"SELECT rast\n" +" FROM my_raster\n" +" WHERE ST_Intersects(rast, 'SRID=4326;POINT(-10 10)');" +msgstr "" + +#. Tag: para +#: faq_raster.xml:202 +#, no-c-format +msgid "" +"Cast the textual geometry representation to a geometry by changing your code " +"to this:" +msgstr "" + +#. Tag: programlisting +#: faq_raster.xml:203 +#, no-c-format +msgid "" +"SELECT rast\n" +" FROM my_raster\n" +" WHERE ST_Intersects(rast, 'SRID=4326;POINT(-10 10)'::geometry);" +msgstr "" + +#. Tag: para +#: faq_raster.xml:211 +#, no-c-format +msgid "" +"How is PostGIS Raster different from Oracle GeoRaster (SDO_GEORASTER) and " +"SDO_RASTER types?" +msgstr "" + +#. Tag: para +#: faq_raster.xml:215 +#, no-c-format +msgid "" +"For a more extensive discussion on this topic, check out Jorge Arévalo " +"Oracle GeoRaster and PostGIS Raster: First impressions " +msgstr "" + +#. Tag: para +#: faq_raster.xml:216 +#, no-c-format +msgid "" +"The major advantage of one-georeference-by-raster over one-georeference-by-" +"layer is to allow:" +msgstr "" + +#. Tag: para +#: faq_raster.xml:217 +#, no-c-format +msgid "" +"* coverages to be not necessarily rectangular (which is often the case of " +"raster coverage covering large extents. See the possible raster arrangements " +"in the documentation)" +msgstr "" + +#. Tag: para +#: faq_raster.xml:218 +#, no-c-format +msgid "" +"* rasters to overlaps (which is necessary to implement lossless vector to " +"raster conversion)" +msgstr "" + +#. Tag: para +#: faq_raster.xml:219 +#, no-c-format +msgid "" +"These arrangements are possible in Oracle as well, but they imply the " +"storage of multiple SDO_GEORASTER objects linked to as many SDO_RASTER " +"tables. A complex coverage can lead to hundreds of tables in the database. " +"With PostGIS Raster you can store a similar raster arrangement into a unique " +"table." +msgstr "" + +#. Tag: para +#: faq_raster.xml:224 +#, no-c-format +msgid "" +"It's a bit like if PostGIS would force you to store only full rectangular " +"vector coverage without gaps or overlaps (a perfect rectangular topological " +"layer). This is very practical in some applications but practice has shown " +"that it is not realistic or desirable for most geographical coverages. " +"Vector structures needs the flexibility to store discontinuous and non-" +"rectangular coverages. We think it is a big advantage that raster structure " +"should benefit as well." +msgstr "" diff --git a/doc/po/it_IT/installation.xml.po b/doc/po/it_IT/installation.xml.po new file mode 100644 index 000000000..20ec7fd4c --- /dev/null +++ b/doc/po/it_IT/installation.xml.po @@ -0,0 +1,1680 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 07:51+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: installation.xml:3 installation.xml:226 installation.xml:635 +#, no-c-format +msgid "Installation" +msgstr "" + +#. Tag: para +#: installation.xml:5 +#, no-c-format +msgid "This chapter details the steps required to install PostGIS." +msgstr "" + +#. Tag: title +#: installation.xml:10 +#, no-c-format +msgid "Short Version" +msgstr "" + +#. Tag: para +#: installation.xml:11 +#, no-c-format +msgid "The raster support is currently optional, but installed by default. For installing using the PostgreSQL 9.1+ extensions model it is required. Please refer to if you are using PostgreSQL 9.1+." +msgstr "" + +#. Tag: para +#: installation.xml:13 +#, no-c-format +msgid "All the .sql files once installed will be installed in share/contrib/postgis-&last_release_version; folder of your PostgreSQL install" +msgstr "" + +#. Tag: para +#: installation.xml:15 +#, no-c-format +msgid "The postgis_comments.sql, raster_comments.sql, topology_comments.sql generate quick help tips for each function that can be accessed via pgAdmin III or psql. In psql with a command of the form e.g.\\dd ST_SetPoint" +msgstr "" + +#. Tag: programlisting +#: installation.xml:17 +#, no-c-format +msgid "" + "tar xvfz postgis-&last_release_version;.tar.gz\n" + "cd postgis-&last_release_version;\n" + "./configure --with-raster --with-topology --with-gui\n" + "make\n" + "make install\n" + "createdb yourdatabase\n" + "createlang plpgsql yourdatabase\n" + "psql -d yourdatabase -f postgis.sql\n" + "psql -d yourdatabase -f postgis_comments.sql\n" + "psql -d yourdatabase -f spatial_ref_sys.sql\n" + "psql -d yourdatabase -f rtpostgis.sql\n" + "psql -d yourdatabase -f raster_comments.sql\n" + "psql -d yourdatabase -f topology/topology.sql\n" + "psql -d yourdatabase -f doc/topology_comments.sql" +msgstr "" + +#. Tag: para +#: installation.xml:18 +#, no-c-format +msgid "topology_comments.sql since its an optional feature is not installed by make install or make comments install. However if you do a make comments or make topology_comments.sql, it will be generated in the docs folder" +msgstr "" + +#. Tag: para +#: installation.xml:22 +#, no-c-format +msgid "The rest of this chapter goes into detail each of the above installation steps." +msgstr "" + +#. Tag: title +#: installation.xml:29 +#, no-c-format +msgid "Requirements" +msgstr "" + +#. Tag: para +#: installation.xml:31 +#, no-c-format +msgid "PostGIS has the following requirements for building and usage:" +msgstr "" + +#. Tag: emphasis +#: installation.xml:36 +#, no-c-format +msgid "Required" +msgstr "" + +#. Tag: para +#: installation.xml:41 +#, no-c-format +msgid "PostgreSQL &min_postgres_version; or higher. A complete installation of PostgreSQL (including server headers) is required. PostgreSQL is available from http://www.postgresql.org ." +msgstr "" + +#. Tag: para +#: installation.xml:50 +#, no-c-format +msgid "For a full PostgreSQL / PostGIS support matrix and PostGIS/GEOS support matrix refer to http://trac.osgeo.org/postgis/wiki/UsersWikiPostgreSQLPostGIS" +msgstr "" + +#. Tag: para +#: installation.xml:56 +#, no-c-format +msgid "GNU C compiler (gcc). Some other ANSI C compilers can be used to compile PostGIS, but we find far fewer problems when compiling with gcc." +msgstr "" + +#. Tag: para +#: installation.xml:64 +#, no-c-format +msgid "GNU Make (gmake or make). For many systems, GNU make is the default version of make. Check the version by invoking make -v. Other versions of make may not process the PostGIS Makefile properly." +msgstr "" + +#. Tag: para +#: installation.xml:74 +#, no-c-format +msgid "Proj4 reprojection library, version 4.6.0 or greater. The Proj4 library is used to provide coordinate reprojection support within PostGIS. Proj4 is available for download from http://trac.osgeo.org/proj/ ." +msgstr "" + +#. Tag: para +#: installation.xml:86 +#, no-c-format +msgid "GEOS geometry library, version 3.3 or greater, but GEOS 3.4+ is recommended to take full advantage of all the new functions and features. Without GEOS 3.4, you will be missing some major enhancements such as ST_Triangles and long-running function interruption, and improvements to geometry validation and making geometries valid such as ST_ValidDetail and ST_MakeValid. GEOS 3.3.2+ is also required for topology support. GEOS is available for download from http://trac.osgeo.org/geos/ and 3.4+ is backward-compatible with older versions so fairly safe to upgrade." +msgstr "" + +#. Tag: para +#: installation.xml:96 +#, no-c-format +msgid "LibXML2, version 2.5.x or higher. LibXML2 is currently used in some imports functions (ST_GeomFromGML and ST_GeomFromKML). LibXML2 is available for download from http://xmlsoft.org/downloads.html." +msgstr "" + +#. Tag: para +#: installation.xml:103 +#, no-c-format +msgid "JSON-C, version 0.9 or higher. JSON-C is currently used to import GeoJSON via the function ST_GeomFromGeoJson. JSON-C is available for download from http://oss.metaparadigm.com/json-c/." +msgstr "" + +#. Tag: para +#: installation.xml:111 +#, no-c-format +msgid "GDAL, version 1.8 or higher (1.9 or higher is strongly recommended since some things will not work well or behavior differently with lower versions). This is required for raster support. http://trac.osgeo.org/gdal/wiki/DownloadSource." +msgstr "" + +#. Tag: emphasis +#: installation.xml:119 +#, no-c-format +msgid "Optional" +msgstr "" + +#. Tag: para +#: installation.xml:124 +#, no-c-format +msgid "GTK (requires GTK+2.0, 2.8+) to compile the shp2pgsql-gui shape file loader. http://www.gtk.org/ ." +msgstr "" + +#. Tag: para +#: installation.xml:134 +#, no-c-format +msgid "CUnit (CUnit). This is needed for regression testing. http://cunit.sourceforge.net/" +msgstr "" + +#. Tag: para +#: installation.xml:140 +#, no-c-format +msgid "Apache Ant (ant) is required for building any of the drivers under the java directory. Ant is available from http://ant.apache.org ." +msgstr "" + +#. Tag: para +#: installation.xml:152 +#, no-c-format +msgid "DocBook (xsltproc) is required for building the documentation. Docbook is available from http://www.docbook.org/ ." +msgstr "" + +#. Tag: para +#: installation.xml:163 +#, no-c-format +msgid "DBLatex (dblatex) is required for building the documentation in PDF format. DBLatex is available from http://dblatex.sourceforge.net/ ." +msgstr "" + +#. Tag: para +#: installation.xml:174 +#, no-c-format +msgid "ImageMagick (convert) is required to generate the images used in the documentation. ImageMagick is available from http://www.imagemagick.org/ ." +msgstr "" + +#. Tag: title +#: installation.xml:187 +#, no-c-format +msgid "Getting the Source" +msgstr "" + +#. Tag: para +#: installation.xml:189 +#, no-c-format +msgid "Retrieve the PostGIS source archive from the downloads website http://www.postgis.org/download/postgis-&last_release_version;.tar.gz " +msgstr "" + +#. Tag: programlisting +#: installation.xml:196 +#, no-c-format +msgid "" + "wget http://www.postgis.org/download/postgis-&last_release_version;.tar.gz\n" + "tar -xvzf postgis-&last_release_version;.tar.gz" +msgstr "" + +#. Tag: para +#: installation.xml:198 +#, no-c-format +msgid "This will create a directory called postgis-&last_release_version; in the current working directory." +msgstr "" + +#. Tag: para +#: installation.xml:204 +#, no-c-format +msgid "Alternatively, checkout the source from the svn repository http://svn.osgeo.org/postgis/trunk/ ." +msgstr "" + +#. Tag: programlisting +#: installation.xml:216 +#, no-c-format +msgid "svn checkout http://svn.osgeo.org/postgis/trunk/ postgis-&last_release_version;" +msgstr "" + +#. Tag: para +#: installation.xml:218 +#, no-c-format +msgid "Change into the newly created postgis-&last_release_version; directory to continue the installation." +msgstr "" + +#. Tag: para +#: installation.xml:229 +#, no-c-format +msgid "Many OS systems now include pre-built packages for PostgreSQL/PostGIS. In many cases compilation is only necessary if you want the most bleeding edge versions or you are a package maintainer." +msgstr "" + +#. Tag: para +#: installation.xml:234 +#, no-c-format +msgid "This section includes general compilation instructions, if you are compiling for Windows etc or another OS, you may find additional more detailed help at PostGIS User contributed compile guides and PostGIS Dev Wiki." +msgstr "" + +#. Tag: para +#: installation.xml:236 +#, no-c-format +msgid "Pre-Built Packages for various OS are listed in PostGIS Pre-built Packages" +msgstr "" + +#. Tag: para +#: installation.xml:237 +#, no-c-format +msgid "If you are a windows user, you can get stable builds via Stackbuilder or PostGIS Windows download site We also have very bleeding-edge windows experimental builds that are built usually once or twice a week or whenever anything exciting happens. You can use these to experiment with the in progress releases of PostGIS" +msgstr "" + +#. Tag: para +#: installation.xml:242 +#, no-c-format +msgid "The PostGIS module is an extension to the PostgreSQL backend server. As such, PostGIS &last_release_version; requires full PostgreSQL server headers access in order to compile. It can be built against PostgreSQL versions &min_postgres_version; or higher. Earlier versions of PostgreSQL are not supported." +msgstr "" + +#. Tag: para +#: installation.xml:250 +#, no-c-format +msgid "Refer to the PostgreSQL installation guides if you haven't already installed PostgreSQL. http://www.postgresql.org ." +msgstr "" + +#. Tag: para +#: installation.xml:260 +#, no-c-format +msgid "For GEOS functionality, when you install PostgresSQL you may need to explicitly link PostgreSQL against the standard C++ library:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:265 +#, no-c-format +msgid "LDFLAGS=-lstdc++ ./configure [YOUR OPTIONS HERE]" +msgstr "" + +#. Tag: para +#: installation.xml:267 +#, no-c-format +msgid "This is a workaround for bogus C++ exceptions interaction with older development tools. If you experience weird problems (backend unexpectedly closed or similar things) try this trick. This will require recompiling your PostgreSQL from scratch, of course." +msgstr "" + +#. Tag: para +#: installation.xml:275 +#, no-c-format +msgid "The following steps outline the configuration and compilation of the PostGIS source. They are written for Linux users and will not work on Windows or Mac." +msgstr "" + +#. Tag: title +#: installation.xml:282 +#, no-c-format +msgid "Configuration" +msgstr "" + +#. Tag: para +#: installation.xml:284 +#, no-c-format +msgid "As with most linux installations, the first step is to generate the Makefile that will be used to build the source code. This is done by running the shell script" +msgstr "" + +#. Tag: para +#: installation.xml:294 +#, no-c-format +msgid "With no additional parameters, this command will attempt to automatically locate the required components and libraries needed to build the PostGIS source code on your system. Although this is the most common usage of ./configure, the script accepts several parameters for those who have the required libraries and programs in non-standard locations." +msgstr "" + +#. Tag: para +#: installation.xml:303 +#, no-c-format +msgid "The following list shows only the most commonly used parameters. For a complete list, use the --help or --help=short parameters." +msgstr "" + +#. Tag: para +#: installation.xml:313 +#, no-c-format +msgid "This is the location the PostGIS libraries and SQL scripts will be installed to. By default, this location is the same as the detected PostgreSQL installation." +msgstr "" + +#. Tag: para +#: installation.xml:320 +#, no-c-format +msgid "This parameter is currently broken, as the package will only install into the PostgreSQL installation directory. Visit http://trac.osgeo.org/postgis/ticket/635 to track this bug." +msgstr "" + +#. Tag: para +#: installation.xml:335 +#, no-c-format +msgid "PostgreSQL provides a utility called pg_config to enable extensions like PostGIS to locate the PostgreSQL installation directory. Use this parameter (--with-pgconfig=/path/to/pg_config) to manually specify a particular PostgreSQL installation that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:349 +#, no-c-format +msgid "GDAL, a required library, provides functionality needed for raster support gdal-config to enable software installations to locate the GDAL installation directory. Use this parameter (--with-gdalconfig=/path/to/gdal-config) to manually specify a particular GDAL installation that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:363 +#, no-c-format +msgid "GEOS, a required geometry library, provides a utility called geos-config to enable software installations to locate the GEOS installation directory. Use this parameter (--with-geosconfig=/path/to/geos-config) to manually specify a particular GEOS installation that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:377 +#, no-c-format +msgid "LibXML is the library required for doing GeomFromKML/GML processes. It normally is found if you have libxml installed, but if not or you want a specific version used, you'll need to point PostGIS at a specific xml2-config confi file to enable software installations to locate the LibXML installation directory. Use this parameter (>--with-xml2config=/path/to/xml2-config) to manually specify a particular LibXML installation that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:395 +#, no-c-format +msgid "Proj4 is a reprojection library required by PostGIS. Use this parameter (--with-projdir=/path/to/projdir) to manually specify a particular Proj4 installation directory that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:407 +#, no-c-format +msgid "Directory where iconv is installed." +msgstr "" + +#. Tag: para +#: installation.xml:416 +#, no-c-format +msgid "JSON-C is an MIT-licensed JSON library required by PostGIS ST_GeomFromJSON support. Use this parameter (--with-jsondir=/path/to/jsondir) to manually specify a particular JSON-C installation directory that PostGIS will build against." +msgstr "" + +#. Tag: para +#: installation.xml:428 +#, no-c-format +msgid "Compile the data import GUI (requires GTK+2.0). This will create shp2pgsql-gui graphical interface to shp2pgsql." +msgstr "" + +#. Tag: para +#: installation.xml:437 +#, no-c-format +msgid "Compile with raster support. This will build rtpostgis-&last_release_version; library and rtpostgis.sql file. This may not be required in final release as plan is to build in raster support by default." +msgstr "" + +#. Tag: para +#: installation.xml:446 +#, no-c-format +msgid "Compile with topology support. This will build the topology.sql file. There is no corresponding library as all logic needed for topology is in postgis-&last_release_version; library." +msgstr "" + +#. Tag: para +#: installation.xml:455 +#, no-c-format +msgid "By default PostGIS will try to detect gettext support and compile with it, however if you run into incompatibility issues that cause breakage of loader, you can disable it entirely with this command. Refer to ticket http://trac.osgeo.org/postgis/ticket/748 for an example issue solved by configuring with this. NOTE: that you aren't missing much by turning this off. This is used for international help/label support for the GUI loader which is not yet documented and still experimental." +msgstr "" + +#. Tag: para +#: installation.xml:465 +#, no-c-format +msgid "If you obtained PostGIS from the SVN repository , the first step is really to run the script" +msgstr "" + +#. Tag: para +#: installation.xml:477 +#, no-c-format +msgid "This script will generate the configure script that in turn is used to customize the installation of PostGIS." +msgstr "" + +#. Tag: para +#: installation.xml:482 +#, no-c-format +msgid "If you instead obtained PostGIS as a tarball, running ./autogen.sh is not necessary as configure has already been generated." +msgstr "" + +#. Tag: title +#: installation.xml:491 +#, no-c-format +msgid "Building" +msgstr "" + +#. Tag: para +#: installation.xml:493 +#, no-c-format +msgid "Once the Makefile has been generated, building PostGIS is as simple as running" +msgstr "" + +#. Tag: para +#: installation.xml:502 +#, no-c-format +msgid "The last line of the output should be \"PostGIS was built successfully. Ready to install.\"" +msgstr "" + +#. Tag: para +#: installation.xml:507 +#, no-c-format +msgid "As of PostGIS v1.4.0, all the functions have comments generated from the documentation. If you wish to install these comments into your spatial databases later, run the command which requires docbook. The postgis_comments.sql and other package comments files raster_comments.sql, topology_comments.sql are also packaged in the tar.gz distribution in the doc folder so no need to make comments if installing from the tar ball." +msgstr "" + +#. Tag: command +#: installation.xml:517 +#, no-c-format +msgid "make comments" +msgstr "" + +#. Tag: para +#: installation.xml:520 +#, no-c-format +msgid "Introduced in PostGIS 2.0. This generates html cheat sheets suitable for quick reference or for student handouts. This requires xsltproc to build and will generate 4 files in doc folder topology_cheatsheet.html, tiger_geocoder_cheatsheet.html, raster_cheatsheet.html, postgis_cheatsheet.html" +msgstr "" + +#. Tag: para +#: installation.xml:525 +#, no-c-format +msgid "You can download some pre-built ones available in html and pdf from PostGIS / PostgreSQL Study Guides" +msgstr "" + +#. Tag: command +#: installation.xml:528 +#, no-c-format +msgid "make cheatsheets" +msgstr "" + +#. Tag: title +#: installation.xml:533 +#, no-c-format +msgid "Building PostGIS Extensions and Deploying them" +msgstr "" + +#. Tag: para +#: installation.xml:535 +#, no-c-format +msgid "The PostGIS extensions are built and installed automatically if you are using PostgreSQL 9.1+." +msgstr "" + +#. Tag: para +#: installation.xml:538 +#, no-c-format +msgid "If you are building from source repository, you need to build the function descriptions first. These get built if you have docbook installed. You can also manually build with the statement:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:539 +#, no-c-format +msgid "make comments" +msgstr "" + +#. Tag: para +#: installation.xml:540 +#, no-c-format +msgid "Building the comments is not necessary if you are building from a release tar ball since these are packaged pre-built with the tar ball already." +msgstr "" + +#. Tag: para +#: installation.xml:541 +#, no-c-format +msgid "If you are building against PostgreSQL 9.1, the extensions should automatically build as part of the make install process. You can if needed build from the extensions folders or copy files if you need them on a different server." +msgstr "" + +#. Tag: programlisting +#: installation.xml:543 +#, no-c-format +msgid "" + "cd extensions\n" + "cd postgis\n" + "make clean\n" + "make \n" + "make install\n" + "cd ..\n" + "cd postgis_topology\n" + "make clean\n" + "make \n" + "make install" +msgstr "" + +#. Tag: para +#: installation.xml:544 +#, no-c-format +msgid "The extension files will always be the same for the same version of PostGIS regardless of OS, so it is fine to copy over the extension files from one OS to another as long as you have the PostGIS binaries already installed on your servers." +msgstr "" + +#. Tag: para +#: installation.xml:546 +#, no-c-format +msgid "If you want to install the extensions manually on a separate server different from your development, You need to copy the following files from the extensions folder into the PostgreSQL / share / extension folder of your PostgreSQL install as well as the needed binaries for regular PostGIS if you don't have them already on the server." +msgstr "" + +#. Tag: para +#: installation.xml:553 +#, no-c-format +msgid "These are the control files that denote information such as the version of the extension to install if not specified. postgis.control, postgis_topology.control." +msgstr "" + +#. Tag: para +#: installation.xml:559 +#, no-c-format +msgid "All the files in the /sql folder of each extension. Note that these need to be copied to the root of the PostgreSQL share/extension folder extensions/postgis/sql/*.sql, extensions/postgis_topology/sql/*.sql" +msgstr "" + +#. Tag: para +#: installation.xml:565 +#, no-c-format +msgid "Once you do that, you should see postgis, postgis_topology as available extensions in PgAdmin -> extensions." +msgstr "" + +#. Tag: para +#: installation.xml:566 +#, no-c-format +msgid "If you are using psql, you can verify that the extensions are installed by running this query:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:567 +#, no-c-format +msgid "" + "SELECT name, default_version,installed_version \n" + "FROM pg_available_extensions WHERE name LIKE 'postgis%' ;\n" + " name | default_version | installed_version\n" + "-----------------+-----------------+-------------------\n" + "postgis | &last_release_version; | &last_release_version;\n" + "postgis_topology | &last_release_version; |" +msgstr "" + +#. Tag: para +#: installation.xml:569 +#, no-c-format +msgid "If you have the extension installed in the database you are querying, you'll see mention in the installed_version column. If you get no records back, it means you don't have postgis extensions installed on the server at all. PgAdmin III 1.14+ will also provide this information in the extensions section of the database browser tree and will even allow upgrade or uninstall by right-clicking." +msgstr "" + +#. Tag: para +#: installation.xml:573 +#, no-c-format +msgid "If you have the extensions available, you can install postgis extension in your database of choice by either using pgAdmin extension interface or running these sql commands:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:574 +#, no-c-format +msgid "" + "CREATE EXTENSION postgis;\n" + "CREATE EXTENSION postgis_topology;" +msgstr "" + +#. Tag: para +#: installation.xml:576 +#, no-c-format +msgid "Extension tables spatial_ref_sys, layer, topology can not be explicitly backed up. They can only be backed up when the respective postgis or postgis_topology extension is backed up, which only seems to happen when you backup the whole database. As of PostGIS 2.0.1, only srid records not packaged with PostGIS are backed up when the database is backed up so don't go around changing srids we package and expect your changes to be there. Put in a ticket if you find an issue. The structures of extension tables are never backed up since they are created with CREATE EXTENSION and assumed to be the same for a given version of an extension. These behaviors are built into the current PostgreSQL extension model, so nothing we can do about it." +msgstr "" + +#. Tag: para +#: installation.xml:581 +#, no-c-format +msgid "If you installed &last_release_version;, without using our wonderful extension system, you can change it to be extension based by first upgrading to the latest micro version running the upgrade scripts: postgis_upgrade_20_minor.sql,raster_upgrade_20_minor.sql,topology_upgrade_20_minor.sql." +msgstr "" + +#. Tag: para +#: installation.xml:582 +#, no-c-format +msgid "If you installed postgis without raster support, you'll need to install raster support first (using the full rtpostgis.sql" +msgstr "" + +#. Tag: para +#: installation.xml:583 +#, no-c-format +msgid "Then you can run the below commands to package the functions in their respective extension." +msgstr "" + +#. Tag: programlisting +#: installation.xml:584 +#, no-c-format +msgid "" + "CREATE EXTENSION postgis FROM unpackaged;\n" + "CREATE EXTENSION postgis_topology FROM unpackaged;" +msgstr "" + +#. Tag: title +#: installation.xml:590 +#, no-c-format +msgid "Testing" +msgstr "" + +#. Tag: para +#: installation.xml:592 +#, no-c-format +msgid "If you wish to test the PostGIS build, run" +msgstr "" + +#. Tag: command +#: installation.xml:597 +#, no-c-format +msgid "make check" +msgstr "" + +#. Tag: para +#: installation.xml:600 +#, no-c-format +msgid "The above command will run through various checks and regression tests using the generated library against an actual PostgreSQL database." +msgstr "" + +#. Tag: para +#: installation.xml:606 +#, no-c-format +msgid "If you configured PostGIS using non-standard PostgreSQL, GEOS, or Proj4 locations, you may need to add their library locations to the LD_LIBRARY_PATH environment variable." +msgstr "" + +#. Tag: para +#: installation.xml:614 +#, no-c-format +msgid "Currently, the make check relies on the PATH and PGPORT environment variables when performing the checks - it does not use the PostgreSQL version that may have been specified using the configuration parameter --with-pgconfig. So make sure to modify your PATH to match the detected PostgreSQL installation during configuration or be prepared to deal with the impending headaches." +msgstr "" + +#. Tag: para +#: installation.xml:626 +#, no-c-format +msgid "If successful, the output of the test should be similar to the following:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:631 +#, no-c-format +msgid "" + "CUnit - A Unit testing framework for C - Version 2.1-0\n" + " http://cunit.sourceforge.net/\n" + "\n" + "\n" + "Suite: print_suite\n" + " Test: test_lwprint_default_format ... passed\n" + " Test: test_lwprint_format_orders ... passed\n" + " Test: test_lwprint_optional_format ... passed\n" + " Test: test_lwprint_oddball_formats ... passed\n" + " Test: test_lwprint_bad_formats ... passed\n" + "Suite: Misc Suite\n" + " Test: test_misc_force_2d ... passed\n" + " Test: test_misc_simplify ... passed\n" + " Test: test_misc_count_vertices ... passed\n" + " Test: test_misc_area ... passed\n" + " Test: test_misc_wkb ... passed\n" + "Suite: PointArray Suite\n" + " Test: test_ptarray_append_point ... passed\n" + " Test: test_ptarray_append_ptarray ... passed\n" + "Suite: PostGIS Computational Geometry Suite\n" + " Test: test_lw_segment_side ... passed\n" + " Test: test_lw_segment_intersects ... passed\n" + " Test: test_lwline_crossing_short_lines ... passed\n" + " Test: test_lwline_crossing_long_lines ... passed\n" + " Test: test_lwline_crossing_bugs ... passed\n" + " Test: test_lwpoint_set_ordinate ... passed\n" + " Test: test_lwpoint_get_ordinate ... passed\n" + " Test: test_point_interpolate ... passed\n" + " Test: test_lwline_clip ... passed\n" + " Test: test_lwline_clip_big ... passed\n" + " Test: test_lwmline_clip ... passed\n" + " Test: test_geohash_point ... passed\n" + " Test: test_geohash_precision ... passed\n" + " Test: test_geohash ... passed\n" + " Test: test_isclosed ... passed\n" + "Suite: PostGIS Measures Suite\n" + " Test: test_mindistance2d_tolerance ... passed\n" + " Test: test_rect_tree_contains_point ... passed\n" + " Test: test_rect_tree_intersects_tree ... passed\n" + " Test: test_lwgeom_segmentize2d ... passed\n" + "Suite: WKT Out Suite\n" + " Test: test_wkt_out_point ... passed\n" + " Test: test_wkt_out_linestring ... passed\n" + " Test: test_wkt_out_polygon ... passed\n" + " Test: test_wkt_out_multipoint ... passed\n" + " Test: test_wkt_out_multilinestring ... passed\n" + ":\n" + ":\n" + "--Run Summary: Type Total Ran Passed Failed\n" + " suites 17 17 n/a 0\n" + " tests 143 143 143 0\n" + " asserts 1228 1228 1228 0\n" + "\n" + "\n" + "Creating spatial db postgis_reg\n" + " Postgis 2.0.0SVN - 2011-01-11 15:33:37\n" + " GEOS: 3.3.0-CAPI-1.7.0\n" + " PROJ: Rel. 4.6.1, 21 August 2008\n" + "\n" + "Running tests\n" + "\n" + " loader/Point.............. ok\n" + " loader/PointM.............. ok\n" + " loader/PointZ.............. ok\n" + " loader/MultiPoint.............. ok\n" + " loader/MultiPointM.............. ok\n" + " loader/MultiPointZ.............. ok\n" + " loader/Arc.............. ok\n" + " loader/ArcM.............. ok\n" + " loader/ArcZ.......... ok\n" + " loader/Polygon.............. ok\n" + " loader/PolygonM.............. ok\n" + " loader/PolygonZ.............. ok\n" + " regress. ok\n" + " regress_index. ok\n" + " regress_index_nulls. ok\n" + " lwgeom_regress. ok\n" + " regress_lrs. ok\n" + " removepoint. ok\n" + " setpoint. ok\n" + " simplify. ok\n" + " snaptogrid. ok\n" + " affine. ok\n" + " measures. ok\n" + " long_xact. ok\n" + " ctors. ok\n" + " sql-mm-serialize. ok\n" + " sql-mm-circularstring. ok\n" + " sql-mm-compoundcurve. ok\n" + " sql-mm-curvepoly. ok\n" + " sql-mm-general. ok\n" + " sql-mm-multicurve. ok\n" + " sql-mm-multisurface. ok\n" + " polyhedralsurface. ok\n" + " out_geometry. ok\n" + " out_geography. ok\n" + " in_gml. ok\n" + " in_kml. ok\n" + " iscollection. ok\n" + " regress_ogc. ok\n" + " regress_ogc_cover. ok\n" + " regress_ogc_prep. ok\n" + " regress_bdpoly. ok\n" + " regress_proj. ok\n" + " dump. ok\n" + " dumppoints. ok\n" + " wmsservers_new. ok\n" + " tickets. ok\n" + " remove_repeated_points. ok\n" + " split. ok\n" + " relatematch. ok\n" + " regress_buffer_params. ok\n" + " hausdorff. ok\n" + " clean. ok\n" + " sharedpaths. ok\n" + " snap. ok\n" + "\n" + "Run tests: 55\n" + "Failed: 0" +msgstr "" + +#. Tag: para +#: installation.xml:637 +#, no-c-format +msgid "To install PostGIS, type" +msgstr "" + +#. Tag: command +#: installation.xml:642 +#, no-c-format +msgid "make install" +msgstr "" + +#. Tag: para +#: installation.xml:645 +#, no-c-format +msgid "This will copy the PostGIS installation files into their appropriate subdirectory specified by the --prefix configuration parameter. In particular:" +msgstr "" + +#. Tag: para +#: installation.xml:653 +#, no-c-format +msgid "The loader and dumper binaries are installed in [prefix]/bin." +msgstr "" + +#. Tag: para +#: installation.xml:660 +#, no-c-format +msgid "The SQL files, such as postgis.sql, are installed in [prefix]/share/contrib." +msgstr "" + +#. Tag: para +#: installation.xml:667 +#, no-c-format +msgid "The PostGIS libraries are installed in [prefix]/lib." +msgstr "" + +#. Tag: para +#: installation.xml:674 +#, no-c-format +msgid "If you previously ran the make comments command to generate the postgis_comments.sql, raster_comments.sql file, install the sql file by running" +msgstr "" + +#. Tag: command +#: installation.xml:681 +#, no-c-format +msgid "make comments-install" +msgstr "" + +#. Tag: para +#: installation.xml:685 +#, no-c-format +msgid "postgis_comments.sql, raster_comments.sql, topology_comments.sql was separated from the typical build and installation targets since with it comes the extra dependency of xsltproc." +msgstr "" + +#. Tag: title +#: installation.xml:695 +#, no-c-format +msgid "Create a spatially-enabled database on PostgreSQL lower than 9.1" +msgstr "" + +#. Tag: para +#: installation.xml:697 +#, no-c-format +msgid "The first step in creating a PostGIS database is to create a simple PostgreSQL database." +msgstr "" + +#. Tag: command +#: installation.xml:703 installation.xml:800 +#, no-c-format +msgid "createdb [yourdatabase]" +msgstr "" + +#. Tag: para +#: installation.xml:706 +#, no-c-format +msgid "Many of the PostGIS functions are written in the PL/pgSQL procedural language. As such, the next step to create a PostGIS database is to enable the PL/pgSQL language in your new database. This is accomplish by the command below command. For PostgreSQL 8.4+, this is generally already installed" +msgstr "" + +#. Tag: command +#: installation.xml:714 +#, no-c-format +msgid "createlang plpgsql [yourdatabase]" +msgstr "" + +#. Tag: para +#: installation.xml:717 +#, no-c-format +msgid "Now load the PostGIS object and function definitions into your database by loading the postgis.sql definitions file (located in [prefix]/share/contrib as specified during the configuration step)." +msgstr "" + +#. Tag: command +#: installation.xml:725 +#, no-c-format +msgid "psql -d [yourdatabase] -f postgis.sql" +msgstr "" + +#. Tag: para +#: installation.xml:728 +#, no-c-format +msgid "For a complete set of EPSG coordinate system definition identifiers, you can also load the spatial_ref_sys.sql definitions file and populate the spatial_ref_sys table. This will permit you to perform ST_Transform() operations on geometries." +msgstr "" + +#. Tag: command +#: installation.xml:736 +#, no-c-format +msgid "psql -d [yourdatabase] -f spatial_ref_sys.sql" +msgstr "" + +#. Tag: para +#: installation.xml:739 +#, no-c-format +msgid "If you wish to add comments to the PostGIS functions, the final step is to load the postgis_comments.sql into your spatial database. The comments can be viewed by simply typing \\dd [function_name] from a psql terminal window." +msgstr "" + +#. Tag: command +#: installation.xml:747 +#, no-c-format +msgid "psql -d [yourdatabase] -f postgis_comments.sql" +msgstr "" + +#. Tag: para +#: installation.xml:750 +#, no-c-format +msgid "Install raster support" +msgstr "" + +#. Tag: command +#: installation.xml:755 +#, no-c-format +msgid "psql -d [yourdatabase] -f rtpostgis.sql" +msgstr "" + +#. Tag: para +#: installation.xml:758 +#, no-c-format +msgid "Install raster support comments. This will provide quick help info for each raster function using psql or PgAdmin or any other PostgreSQL tool that can show function comments" +msgstr "" + +#. Tag: command +#: installation.xml:764 +#, no-c-format +msgid "psql -d [yourdatabase] -f raster_comments.sql" +msgstr "" + +#. Tag: para +#: installation.xml:766 +#, no-c-format +msgid "Install topology support" +msgstr "" + +#. Tag: command +#: installation.xml:771 +#, no-c-format +msgid "psql -d [yourdatabase] -f topology/topology.sql" +msgstr "" + +#. Tag: para +#: installation.xml:774 +#, no-c-format +msgid "Install topology support comments. This will provide quick help info for each topology function / type using psql or PgAdmin or any other PostgreSQL tool that can show function comments" +msgstr "" + +#. Tag: command +#: installation.xml:780 +#, no-c-format +msgid "psql -d [yourdatabase] -f topology/topology_comments.sql" +msgstr "" + +#. Tag: para +#: installation.xml:783 installation.xml:820 +#, no-c-format +msgid "If you plan to restore an old backup from prior versions in this new db, run:" +msgstr "" + +#. Tag: command +#: installation.xml:784 installation.xml:821 +#, no-c-format +msgid "psql -d [yourdatabase] -f legacy.sql" +msgstr "" + +#. Tag: para +#: installation.xml:785 +#, no-c-format +msgid "There is an alternative legacy_minimal.sql you can run instead which will install barebones needed to recover tables and work with apps like MapServer and GeoServer. If you have views that use things like distance / length etc, you'll need the full blown legacy.sql" +msgstr "" + +#. Tag: para +#: installation.xml:788 installation.xml:823 +#, no-c-format +msgid "You can later run uninstall_legacy.sql to get rid of the deprecated functions after you are done with restoring and cleanup." +msgstr "" + +#. Tag: title +#: installation.xml:792 +#, no-c-format +msgid "Creating a spatial database using EXTENSIONS" +msgstr "" + +#. Tag: para +#: installation.xml:794 +#, no-c-format +msgid "If you are using PostgreSQL 9.1+ and have compiled and installed the extensions/ postgis modules, you can create a spatial database the new way." +msgstr "" + +#. Tag: para +#: installation.xml:803 +#, no-c-format +msgid "The core postgis extension installs PostGIS geometry, geography, raster, spatial_ref_sys and all the functions and comments with a simple: CREATE EXTENSION postgis; command." +msgstr "" + +#. Tag: command +#: installation.xml:809 +#, no-c-format +msgid "psql -d [yourdatabase] -c \"CREATE EXTENSION postgis;\"" +msgstr "" + +#. Tag: para +#: installation.xml:812 +#, no-c-format +msgid "Topology is packaged as a separate extension and installable with command:" +msgstr "" + +#. Tag: command +#: installation.xml:817 +#, no-c-format +msgid "psql -d [yourdatabase] -c \"CREATE EXTENSION postgis_topology;\"" +msgstr "" + +#. Tag: title +#: installation.xml:827 +#, no-c-format +msgid "Installing, Upgrading Tiger Geocoder and loading data" +msgstr "" + +#. Tag: para +#: installation.xml:829 +#, no-c-format +msgid "The Tiger geocoder does not get installed / upgraded with the core PostGIS scripts because it is only of regional use. In fact nothing located in the extras folder is installed by default with the regular PostGIS install / upgrade. Extras like Tiger geocoder may also not be packaged in your PostGIS distribution, but will always be available in the postgis-&last_release_version;.tar.gz file. The instructions provided here are also available in the extras/tiger_geocoder/tiger_2010/README" +msgstr "" + +#. Tag: para +#: installation.xml:831 +#, no-c-format +msgid "If you are on Windows and you don't have tar installed, you can use http://www.7-zip.org/ to unzip the PostGIS tarball." +msgstr "" + +#. Tag: title +#: installation.xml:833 +#, no-c-format +msgid "Tiger Geocoder Enabling your PostGIS database" +msgstr "" + +#. Tag: para +#: installation.xml:834 +#, no-c-format +msgid "First install PostGIS using the prior instructions." +msgstr "" + +#. Tag: para +#: installation.xml:838 installation.xml:865 +#, no-c-format +msgid "If you don't have an extras folder, download http://www.postgis.org/download/postgis-&last_release_version;.tar.gz" +msgstr "" + +#. Tag: command +#: installation.xml:843 installation.xml:870 +#, no-c-format +msgid "tar xvfz postgis-&last_release_version;.tar.gz" +msgstr "" + +#. Tag: command +#: installation.xml:847 installation.xml:874 +#, no-c-format +msgid "cd postgis-&last_release_version;/extras/tiger_geocoder/tiger_2011" +msgstr "" + +#. Tag: para +#: installation.xml:850 +#, no-c-format +msgid "Edit the tiger_loader.sql to the paths of your executables server etc." +msgstr "" + +#. Tag: para +#: installation.xml:851 +#, no-c-format +msgid "If you are installing Tiger geocoder for the first time edit either the create_geocode.bat script If you are on windows or the create_geocode.sh if you are on Linux/Unix/Mac OSX with your PostgreSQL specific settings and run the corresponding script from the commandline. If you don't edit this file, it will just contain common case locations of items. You can edit the generated script after the fact when you run the command." +msgstr "" + +#. Tag: para +#: installation.xml:854 +#, no-c-format +msgid "Verify that you now have a tiger schema in your database and that it is part of your database search_path. If it is not, add it with a command something along the line of:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:854 +#, no-c-format +msgid "ALTER DATABASE geocoder SET search_path=public, tiger;" +msgstr "" + +#. Tag: para +#: installation.xml:855 +#, no-c-format +msgid "The normalizing address functionality works more or less without any data except for tricky addresses. Run this test and verify things look like this:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:856 +#, no-c-format +msgid "" + "SELECT pprint_addy(normalize_address('202 East Fremont Street, Las Vegas, Nevada 89101')) As pretty_address;\n" + "pretty_address\n" + "---------------------------------------\n" + "202 E Fremont St, Las Vegas, NV 89101" +msgstr "" + +#. Tag: title +#: installation.xml:860 +#, no-c-format +msgid "Upgrading your Tiger Geocoder Install" +msgstr "" + +#. Tag: para +#: installation.xml:861 +#, no-c-format +msgid "If you have Tiger Geocoder packaged with 2.0+ already installed, you can upgrade the functions at any time even from an interim tar ball if there are fixes you badly need." +msgstr "" + +#. Tag: para +#: installation.xml:877 +#, no-c-format +msgid "Locate the upgrade_geocoder.bat script If you are on windows or the upgrade_geocoder.sh if you are on Linux/Unix/Mac OSX. Edit the file to have your postgis database credientials and run then corresponding script from the commandline." +msgstr "" + +#. Tag: para +#: installation.xml:880 +#, no-c-format +msgid "Next drop all nation tables and load up the new ones. Generate a drop script with this SQL statement as detailed in " +msgstr "" + +#. Tag: programlisting +#: installation.xml:881 +#, no-c-format +msgid "SELECT drop_nation_tables_generate_script();" +msgstr "" + +#. Tag: para +#: installation.xml:882 +#, no-c-format +msgid "Run the generated drop SQL statements." +msgstr "" + +#. Tag: para +#: installation.xml:883 +#, no-c-format +msgid "Generate a nation load script with this SELECT statement as detailed in " +msgstr "" + +#. Tag: emphasis +#: installation.xml:884 +#, no-c-format +msgid "For windows" +msgstr "" + +#. Tag: programlisting +#: installation.xml:885 +#, no-c-format +msgid "SELECT loader_generate_nation_script('windows');" +msgstr "" + +#. Tag: emphasis +#: installation.xml:886 +#, no-c-format +msgid "For unix/linux" +msgstr "" + +#. Tag: programlisting +#: installation.xml:887 +#, no-c-format +msgid "SELECT loader_generate_nation_script('sh');" +msgstr "" + +#. Tag: para +#: installation.xml:888 +#, no-c-format +msgid "Refer to for instructions on how to run the generate script. This only needs to be done once." +msgstr "" + +#. Tag: para +#: installation.xml:889 +#, no-c-format +msgid "You can have a mix of 2010/2011 state tables and can upgrade each state separately. Before you upgrade a state to 2011, you first need to drop the 2010 tables for that state using ." +msgstr "" + +#. Tag: title +#: installation.xml:892 +#, no-c-format +msgid "Loading Tiger Data" +msgstr "" + +#. Tag: para +#: installation.xml:893 +#, no-c-format +msgid "The instructions for loading data are available in a more detailed form in the extras/tiger_geocoder/tiger_2011/README. This just includes the general steps." +msgstr "" + +#. Tag: para +#: installation.xml:894 +#, no-c-format +msgid "The load process downloads data from the census website for the respective nation files, states requested, extracts the files, and then loads each state into its own separate set of state tables. Each state table inherits from the tables defined in tiger schema so that its sufficient to just query those tables to access all the data and drop a set of state tables at any time using the if you need to reload a state or just don't need a state anymore." +msgstr "" + +#. Tag: para +#: installation.xml:896 +#, no-c-format +msgid "In order to be able to load data you'll need the following tools:" +msgstr "" + +#. Tag: para +#: installation.xml:898 +#, no-c-format +msgid "A tool to unzip the zip files from census website." +msgstr "" + +#. Tag: para +#: installation.xml:899 +#, no-c-format +msgid "For Unix like systems: unzip executable which is usually already installed on most Unix like platforms." +msgstr "" + +#. Tag: para +#: installation.xml:900 +#, no-c-format +msgid "For Windows, 7-zip which is a free compress/uncompress tool you can download from http://www.7-zip.org/" +msgstr "" + +#. Tag: para +#: installation.xml:902 +#, no-c-format +msgid "shp2pgsql commandline which is installed by default when you install PostGIS." +msgstr "" + +#. Tag: para +#: installation.xml:903 +#, no-c-format +msgid "wget which is a web grabber tool usually installed on most Unix/Linux systems." +msgstr "" + +#. Tag: para +#: installation.xml:904 +#, no-c-format +msgid "If you are on windows, you can get pre-compiled binaries from http://gnuwin32.sourceforge.net/packages/wget.htm" +msgstr "" + +#. Tag: para +#: installation.xml:907 +#, no-c-format +msgid "If you are upgrading from tiger_2010, you'll need to first generate and run . Before you load any state data, you need to load the nation wide data which you do with . Which will generate a loader script for you." +msgstr "" + +#. Tag: para +#: installation.xml:909 +#, no-c-format +msgid "To load data refer to to generate a data load script for your platform for the states you desire. Note that you can install these piecemeal. You don't have to load all the states you want all at once. You can load them as you need them." +msgstr "" + +#. Tag: para +#: installation.xml:912 +#, no-c-format +msgid "After the states you desire have been loaded, make sure to run the: SELECT install_missing_indexes(); as described in ." +msgstr "" + +#. Tag: para +#: installation.xml:914 +#, no-c-format +msgid "To test that things are working as they should, try to run a geocode on an address in your state using " +msgstr "" + +#. Tag: title +#: installation.xml:919 +#, no-c-format +msgid "Create a spatially-enabled database from a template" +msgstr "" + +#. Tag: para +#: installation.xml:921 +#, no-c-format +msgid "Some packaged distributions of PostGIS (in particular the Win32 installers for PostGIS >= 1.1.5) load the PostGIS functions into a template database called template_postgis. If the template_postgis database exists in your PostgreSQL installation then it is possible for users and/or applications to create spatially-enabled databases using a single command. Note that in both cases, the database user must have been granted the privilege to create new databases." +msgstr "" + +#. Tag: para +#: installation.xml:932 +#, no-c-format +msgid "From the shell:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:936 +#, no-c-format +msgid "# createdb -T template_postgis my_spatial_db" +msgstr "" + +#. Tag: para +#: installation.xml:938 +#, no-c-format +msgid "From SQL:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:942 +#, no-c-format +msgid "postgres=# CREATE DATABASE my_spatial_db TEMPLATE=template_postgis" +msgstr "" + +#. Tag: title +#: installation.xml:946 +#, no-c-format +msgid "Upgrading" +msgstr "" + +#. Tag: para +#: installation.xml:948 +#, no-c-format +msgid "Upgrading existing spatial databases can be tricky as it requires replacement or introduction of new PostGIS object definitions." +msgstr "" + +#. Tag: para +#: installation.xml:953 +#, no-c-format +msgid "Unfortunately not all definitions can be easily replaced in a live database, so sometimes your best bet is a dump/reload process." +msgstr "" + +#. Tag: para +#: installation.xml:958 +#, no-c-format +msgid "PostGIS provides a SOFT UPGRADE procedure for minor or bugfix releases, and a HARD UPGRADE procedure for major releases." +msgstr "" + +#. Tag: para +#: installation.xml:963 +#, no-c-format +msgid "Before attempting to upgrade PostGIS, it is always worth to backup your data. If you use the -Fc flag to pg_dump you will always be able to restore the dump with a HARD UPGRADE." +msgstr "" + +#. Tag: title +#: installation.xml:970 +#, no-c-format +msgid "Soft upgrade" +msgstr "" + +#. Tag: para +#: installation.xml:972 +#, no-c-format +msgid "If you installed your database using extensions, you'll need to upgrade using the extension model as well. If you installed using the old sql script way, then you should upgrade using the sql script way. Please refer to the appropriate." +msgstr "" + +#. Tag: title +#: installation.xml:975 +#, no-c-format +msgid "Soft Upgrade Pre 9.1+ or without extensions" +msgstr "" + +#. Tag: para +#: installation.xml:976 +#, no-c-format +msgid "This section applies only to those who installed PostGIS not using extensions. If you have extensions and try to upgrade with this approach you'll get messages like:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:977 +#, no-c-format +msgid "can't drop ... because postgis extension depends on it" +msgstr "" + +#. Tag: para +#: installation.xml:978 +#, no-c-format +msgid "After compiling you should find several postgis_upgrade*.sql files. Install the one for your version of PostGIS. For example postgis_upgrade_13_to_15.sql should be used if you are upgrading from PostGIS 1.3 to 1.5. If you are moving from PostGIS 1.* to PostGIS 2.* or from PostGIS 2.* prior to r7409, you need to do a HARD UPGRADE." +msgstr "" + +#. Tag: programlisting +#: installation.xml:984 +#, no-c-format +msgid "psql -f postgis_upgrade_20_minor.sql -d your_spatial_database" +msgstr "" + +#. Tag: para +#: installation.xml:986 +#, no-c-format +msgid "The same procedure applies to raster and topology extensions, with upgrade files named rtpostgis_upgrade*.sql and topology_upgrade*.sql respectively. If you need them:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:994 +#, no-c-format +msgid "psql -f rtpostgis_upgrade_20_minor.sql -d your_spatial_database" +msgstr "" + +#. Tag: programlisting +#: installation.xml:995 +#, no-c-format +msgid "psql -f topology_upgrade_20_minor.sql -d your_spatial_database" +msgstr "" + +#. Tag: para +#: installation.xml:998 +#, no-c-format +msgid "If you can't find the postgis_upgrade*.sql specific for upgrading your version you are using a version too early for a soft upgrade and need to do a HARD UPGRADE." +msgstr "" + +#. Tag: para +#: installation.xml:1004 +#, no-c-format +msgid "The function should inform you about the need to run this kind of upgrade using a \"procs need upgrade\" message." +msgstr "" + +#. Tag: title +#: installation.xml:1011 +#, no-c-format +msgid "Soft Upgrade 9.1+ using extensions" +msgstr "" + +#. Tag: para +#: installation.xml:1012 +#, no-c-format +msgid "If you originally installed PostGIS with extensions, then you need to upgrade using extensions as well. Doing a minor upgrade with extensions, is fairly painless." +msgstr "" + +#. Tag: programlisting +#: installation.xml:1013 +#, no-c-format +msgid "" + "ALTER EXTENSION postgis UPDATE TO \"&last_release_version;\";\n" + "ALTER EXTENSION postgis_topology UPDATE TO \"&last_release_version;\";" +msgstr "" + +#. Tag: para +#: installation.xml:1014 +#, no-c-format +msgid "If you get an error notice something like:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1015 +#, no-c-format +msgid "No migration path defined for ... to &last_release_version;" +msgstr "" + +#. Tag: para +#: installation.xml:1016 +#, no-c-format +msgid "Then you'll need to backup your database, create a fresh one as described in and then restore your backup ontop of this new database. You might get a message that postgis extension already installed which you can safely ignore." +msgstr "" + +#. Tag: para +#: installation.xml:1018 +#, no-c-format +msgid "If you installed PostGIS originally without a version specified, you can often skip the reinstallation of postgis extension before restoring since the backup just has CREATE EXTENSION postgis and thus picks up the newest latest version during restore. ." +msgstr "" + +#. Tag: title +#: installation.xml:1025 +#, no-c-format +msgid "Hard upgrade" +msgstr "" + +#. Tag: para +#: installation.xml:1027 +#, no-c-format +msgid "By HARD UPGRADE we mean full dump/reload of postgis-enabled databases. You need a HARD UPGRADE when PostGIS objects' internal storage changes or when SOFT UPGRADE is not possible. The Release Notes appendix reports for each version whether you need a dump/reload (HARD UPGRADE) to upgrade." +msgstr "" + +#. Tag: para +#: installation.xml:1036 +#, no-c-format +msgid "The dump/reload process is assisted by the postgis_restore.pl script which takes care of skipping from the dump all definitions which belong to PostGIS (including old ones), allowing you to restore your schemas and data into a database with PostGIS installed without getting duplicate symbol errors or bringing forward deprecated objects." +msgstr "" + +#. Tag: para +#: installation.xml:1045 +#, no-c-format +msgid "Supplementary instructions for windows users are available at Windows Hard upgrade." +msgstr "" + +#. Tag: para +#: installation.xml:1048 +#, no-c-format +msgid "The Procedure is as follows:" +msgstr "" + +#. Tag: para +#: installation.xml:1056 +#, no-c-format +msgid "Create a \"custom-format\" dump of the database you want to upgrade (let's call it olddb) include binary blobs (-b) and verbose (-v) output. The user can be the owner of the db, need not be postgres super account." +msgstr "" + +#. Tag: programlisting +#: installation.xml:1064 +#, no-c-format +msgid "pg_dump -h localhost -p 5432 -U postgres -Fc -b -v -f \"/somepath/olddb.backup\" olddb" +msgstr "" + +#. Tag: para +#: installation.xml:1070 +#, no-c-format +msgid "Do a fresh install of PostGIS in a new database -- we'll refer to this database as newdb. Please refer to and for instructions on how to do this." +msgstr "" + +#. Tag: para +#: installation.xml:1077 +#, no-c-format +msgid "The spatial_ref_sys entries found in your dump will be restored, but they will not override existing ones in spatial_ref_sys. This is to ensure that fixes in the official set will be properly propagated to restored databases. If for any reason you really want your own overrides of standard entries just don't load the spatial_ref_sys.sql file when creating the new db." +msgstr "" + +#. Tag: para +#: installation.xml:1087 +#, no-c-format +msgid "If your database is really old or you know you've been using long deprecated functions in your views and functions, you might need to load legacy.sql for all your functions and views etc. to properly come back. Only do this if _really_ needed. Consider upgrading your views and functions before dumping instead, if possible. The deprecated functions can be later removed by loading uninstall_legacy.sql." +msgstr "" + +#. Tag: para +#: installation.xml:1103 +#, no-c-format +msgid "Restore your backup into your fresh newdb database using postgis_restore.pl. Unexpected errors, if any, will be printed to the standard error stream by psql. Keep a log of those." +msgstr "" + +#. Tag: programlisting +#: installation.xml:1111 +#, no-c-format +msgid "perl utils/postgis_restore.pl \"/somepath/olddb.backup\" | psql -h localhost -p 5432 -U postgres newdb 2> errors.txt" +msgstr "" + +#. Tag: para +#: installation.xml:1117 +#, no-c-format +msgid "Errors may arise in the following cases:" +msgstr "" + +#. Tag: para +#: installation.xml:1123 +#, no-c-format +msgid "Some of your views or functions make use of deprecated PostGIS objects. In order to fix this you may try loading legacy.sql script prior to restore or you'll have to restore to a version of PostGIS which still contains those objects and try a migration again after porting your code. If the legacy.sql way works for you, don't forget to fix your code to stop using deprecated functions and drop them loading uninstall_legacy.sql." +msgstr "" + +#. Tag: para +#: installation.xml:1135 +#, no-c-format +msgid "Some custom records of spatial_ref_sys in dump file have an invalid SRID value. Valid SRID values are bigger than 0 and smaller than 999000. Values in the 999000.999999 range are reserved for internal use while values > 999999 can't be used at all. All your custom records with invalid SRIDs will be retained, with those > 999999 moved into the reserved range, but the spatial_ref_sys table would loose a check constraint guarding for that invariant to hold and possibly also its primary key ( when multiple invalid SRIDS get converted to the same reserved SRID value )." +msgstr "" + +#. Tag: para +#: installation.xml:1149 +#, no-c-format +msgid "In order to fix this you should copy your custom SRS to a SRID with a valid value (maybe in the 910000..910999 range), convert all your tables to the new srid (see ), delete the invalid entry from spatial_ref_sys and re-construct the check(s) with:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1156 +#, no-c-format +msgid "ALTER TABLE spatial_ref_sys ADD CONSTRAINT spatial_ref_sys_srid_check check (srid > 0 AND srid < 999000 );" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1158 +#, no-c-format +msgid "ALTER TABLE spatial_ref_sys ADD PRIMARY KEY(srid));" +msgstr "" + +#. Tag: title +#: installation.xml:1169 +#, no-c-format +msgid "Common Problems" +msgstr "" + +#. Tag: para +#: installation.xml:1170 +#, no-c-format +msgid "There are several things to check when your installation or upgrade doesn't go as you expected." +msgstr "" + +#. Tag: para +#: installation.xml:1177 +#, no-c-format +msgid "Check that you have installed PostgreSQL &min_postgres_version; or newer, and that you are compiling against the same version of the PostgreSQL source as the version of PostgreSQL that is running. Mix-ups can occur when your (Linux) distribution has already installed PostgreSQL, or you have otherwise installed PostgreSQL before and forgotten about it. PostGIS will only work with PostgreSQL &min_postgres_version; or newer, and strange, unexpected error messages will result if you use an older version. To check the version of PostgreSQL which is running, connect to the database using psql and run this query:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1190 +#, no-c-format +msgid "SELECT version();" +msgstr "" + +#. Tag: para +#: installation.xml:1192 +#, no-c-format +msgid "If you are running an RPM based distribution, you can check for the existence of pre-installed packages using the rpm command as follows: rpm -qa | grep postgresql" +msgstr "" + +#. Tag: para +#: installation.xml:1200 +#, no-c-format +msgid "If your upgrade fails, make sure you are restoring into a database that already has PostGIS installed." +msgstr "" + +#. Tag: programlisting +#: installation.xml:1201 +#, no-c-format +msgid "SELECT postgis_full_version();" +msgstr "" + +#. Tag: para +#: installation.xml:1205 +#, no-c-format +msgid "Also check that configure has correctly detected the location and version of PostgreSQL, the Proj4 library and the GEOS library." +msgstr "" + +#. Tag: para +#: installation.xml:1212 +#, no-c-format +msgid "The output from configure is used to generate the postgis_config.h file. Check that the POSTGIS_PGSQL_VERSION, POSTGIS_PROJ_VERSION and POSTGIS_GEOS_VERSION variables have been set correctly." +msgstr "" + +#. Tag: title +#: installation.xml:1225 +#, no-c-format +msgid "JDBC" +msgstr "" + +#. Tag: para +#: installation.xml:1227 +#, no-c-format +msgid "The JDBC extensions provide Java objects corresponding to the internal PostGIS types. These objects can be used to write Java clients which query the PostGIS database and draw or do calculations on the GIS data in PostGIS." +msgstr "" + +#. Tag: para +#: installation.xml:1236 +#, no-c-format +msgid "Enter the java/jdbc sub-directory of the PostGIS distribution." +msgstr "" + +#. Tag: para +#: installation.xml:1243 +#, no-c-format +msgid "Run the ant command. Copy the postgis.jar file to wherever you keep your java libraries." +msgstr "" + +#. Tag: para +#: installation.xml:1251 +#, no-c-format +msgid "The JDBC extensions require a PostgreSQL JDBC driver to be present in the current CLASSPATH during the build process. If the PostgreSQL JDBC driver is located elsewhere, you may pass the location of the JDBC driver JAR separately using the -D parameter like this:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1258 +#, no-c-format +msgid "# ant -Dclasspath=/path/to/postgresql-jdbc.jar" +msgstr "" + +#. Tag: para +#: installation.xml:1260 +#, no-c-format +msgid "PostgreSQL JDBC drivers can be downloaded from http://jdbc.postgresql.org ." +msgstr "" + +#. Tag: title +#: installation.xml:1270 +#, no-c-format +msgid "Loader/Dumper" +msgstr "" + +#. Tag: para +#: installation.xml:1272 +#, no-c-format +msgid "The data loader and dumper are built and installed automatically as part of the PostGIS build. To build and install them manually:" +msgstr "" + +#. Tag: programlisting +#: installation.xml:1277 +#, no-c-format +msgid "" + "# cd postgis-&last_release_version;/loader\n" + "# make\n" + "# make install" +msgstr "" + +#. Tag: para +#: installation.xml:1279 +#, no-c-format +msgid "The loader is called shp2pgsql and converts ESRI Shape files into SQL suitable for loading in PostGIS/PostgreSQL. The dumper is called pgsql2shp and converts PostGIS tables (or queries) into ESRI Shape files. For more verbose documentation, see the online help, and the manual pages." +msgstr "" + diff --git a/doc/po/it_IT/introduction.xml.po b/doc/po/it_IT/introduction.xml.po new file mode 100644 index 000000000..625b88f42 --- /dev/null +++ b/doc/po/it_IT/introduction.xml.po @@ -0,0 +1,509 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: introduction.xml:3 +#, no-c-format +msgid "Introduction" +msgstr "" + +#. Tag: para +#: introduction.xml:5 +#, no-c-format +msgid "" +"PostGIS was developed by Refractions Research Inc, as a spatial database " +"technology research project. Refractions is a GIS and database consulting " +"company in Victoria, British Columbia, Canada, specializing in data " +"integration and custom software development. We plan on supporting and " +"developing PostGIS to support a range of important GIS functionality, " +"including full OpenGIS support, advanced topological constructs (coverages, " +"surfaces, networks), desktop user interface tools for viewing and editing " +"GIS data, and web-based access tools." +msgstr "" + +#. Tag: para +#: introduction.xml:15 +#, no-c-format +msgid "" +"PostGIS is an incubation project of the OSGeo Foundation. PostGIS is being " +"continually improved and funded by many FOSS4G Developers as well as " +"corporations all over the world that gain great benefit from its " +"functionality and versatility." +msgstr "" + +#. Tag: title +#: introduction.xml:21 +#, no-c-format +msgid "Project Steering Committee" +msgstr "" + +#. Tag: para +#: introduction.xml:22 +#, no-c-format +msgid "" +"The PostGIS Project Steering Committee (PSC) coordinates the general " +"direction, release cycles, documentation, and outreach efforts for the " +"PostGIS project. In addition the PSC provides general user support, accepts " +"and approves patches from the general PostGIS community and votes on " +"miscellaneous issues involving PostGIS such as developer commit access, new " +"PSC members or significant API changes." +msgstr "" + +#. Tag: term +#: introduction.xml:31 +#, no-c-format +msgid "Mark Cave-Ayland" +msgstr "" + +#. Tag: para +#: introduction.xml:33 +#, no-c-format +msgid "" +"Coordinates bug fixing and maintenance effort, alignment of PostGIS with " +"PostgreSQL releases, spatial index selectivity and binding, loader/dumper, " +"and Shapefile GUI Loader, integration of new and new function enhancements." +msgstr "" + +#. Tag: term +#: introduction.xml:40 +#, no-c-format +msgid "Regina Obe" +msgstr "" + +#. Tag: para +#: introduction.xml:42 +#, no-c-format +msgid "" +"Buildbot Maintenance, windows production and experimental builds, " +"Documentation, general user support on PostGIS newsgroup, X3D support, Tiger " +"Geocoder Support, management functions, and smoke testing new functionality " +"or major code changes." +msgstr "" + +#. Tag: term +#: introduction.xml:49 +#, no-c-format +msgid "Paul Ramsey (Chair)" +msgstr "" + +#. Tag: para +#: introduction.xml:51 +#, no-c-format +msgid "" +"Co-founder of PostGIS project. General bug fixing, geography support, " +"geography and geometry index support (2D, 3D, nD index and anything spatial " +"index), underlying geometry internal structures, GEOS functionality " +"integration and alignment with GEOS releases, loader/dumper, and Shapefile " +"GUI loader." +msgstr "" + +#. Tag: term +#: introduction.xml:57 +#, no-c-format +msgid "Sandro Santilli" +msgstr "" + +#. Tag: para +#: introduction.xml:60 +#, no-c-format +msgid "" +"Bug fixes and maintenance and integration of new GEOS functionality and " +"alignment with GEOS releases, Topology support, and Raster framework and low " +"level api functions." +msgstr "" + +#. Tag: title +#: introduction.xml:67 +#, no-c-format +msgid "Contributors Past and Present" +msgstr "" + +#. Tag: term +#: introduction.xml:71 +#, no-c-format +msgid "Chris Hodgson" +msgstr "" + +#. Tag: para +#: introduction.xml:73 +#, no-c-format +msgid "" +"Prior PSC Member. General development, site and buildbot maintenance, OSGeo " +"incubation management" +msgstr "" + +#. Tag: term +#: introduction.xml:77 +#, no-c-format +msgid "Kevin Neufeld" +msgstr "" + +#. Tag: para +#: introduction.xml:79 +#, no-c-format +msgid "" +"Prior PSC Member. Documentation and documentation support tools, advanced " +"user support on PostGIS newsgroup, and PostGIS maintenance function " +"enhancements." +msgstr "" + +#. Tag: term +#: introduction.xml:85 +#, no-c-format +msgid "Dave Blasby" +msgstr "" + +#. Tag: para +#: introduction.xml:88 +#, no-c-format +msgid "" +"The original developer/Co-founder of PostGIS. Dave wrote the server side " +"objects, index bindings, and many of the server side analytical functions." +msgstr "" + +#. Tag: term +#: introduction.xml:95 +#, no-c-format +msgid "Jeff Lounsbury" +msgstr "" + +#. Tag: para +#: introduction.xml:97 +#, no-c-format +msgid "" +"Original development of the Shape file loader/dumper. Current PostGIS " +"Project Owner representative." +msgstr "" + +#. Tag: term +#: introduction.xml:102 +#, no-c-format +msgid "Olivier Courtin" +msgstr "" + +#. Tag: para +#: introduction.xml:104 +#, no-c-format +msgid "Input output XML (KML,GML)/GeoJSON functions, 3D support and bug fixes." +msgstr "" + +#. Tag: term +#: introduction.xml:109 +#, no-c-format +msgid "Mark Leslie" +msgstr "" + +#. Tag: para +#: introduction.xml:111 +#, no-c-format +msgid "" +"Ongoing maintenance and development of core functions. Enhanced curve " +"support. Shapefile GUI loader." +msgstr "" + +#. Tag: term +#: introduction.xml:116 +#, no-c-format +msgid "Pierre Racine" +msgstr "" + +#. Tag: para +#: introduction.xml:118 +#, no-c-format +msgid "Raster overall architecture, prototyping, programming support" +msgstr "" + +#. Tag: term +#: introduction.xml:123 +#, no-c-format +msgid "Nicklas Avén" +msgstr "" + +#. Tag: para +#: introduction.xml:126 +#, no-c-format +msgid "" +"Distance function enhancements (including 3D distance and relationship " +"functions) and additions, Windows testing, and general user support" +msgstr "" + +#. Tag: term +#: introduction.xml:131 +#, no-c-format +msgid "Jorge Arévalo" +msgstr "" + +#. Tag: para +#: introduction.xml:134 +#, no-c-format +msgid "Raster development, GDAL driver support, loader" +msgstr "" + +#. Tag: term +#: introduction.xml:139 +#, no-c-format +msgid "Bborie Park" +msgstr "" + +#. Tag: para +#: introduction.xml:141 +#, no-c-format +msgid "Raster development, raster loader" +msgstr "" + +#. Tag: term +#: introduction.xml:146 +#, no-c-format +msgid "Mateusz Loskot" +msgstr "" + +#. Tag: para +#: introduction.xml:148 +#, no-c-format +msgid "Raster loader, low level raster api functions" +msgstr "" + +#. Tag: term +#: introduction.xml:153 +#, no-c-format +msgid "David Zwarg" +msgstr "" + +#. Tag: para +#: introduction.xml:156 +#, no-c-format +msgid "Raster development" +msgstr "" + +#. Tag: term +#: introduction.xml:161 +#, no-c-format +msgid "Other contributors: Individuals" +msgstr "" + +#. Tag: para +#: introduction.xml:164 +#, no-c-format +msgid "" +"In alphabetical order: Alex Bodnaru, Alex Mayrhofer, Andrea Peri, Andreas " +"Forø Tollefsen, Andreas Neumann, Anne Ghisla, Barbara Phillipot, Ben Jubb, " +"Bernhard Reiter, Brian Hamlin, Bruce Rindahl, Bruno Wolff III, Bryce L. " +"Nordgren, Carl Anderson, Charlie Savage, Dane Springmeyer, David Skea, David " +"Techer, Eduin Carrillo, Even Rouault, Frank Warmerdam, George Silva, Gerald " +"Fenoy, Gino Lucrezi, Guillaume Lelarge, IIDA Tetsushi, Ingvild Nystuen, Jeff " +"Adams, Jose Carlos Martinez Llari, Kashif Rasul, Klaus Foerster, Kris Jurka, " +"Leo Hsu, Loic Dachary, Luca S. Percich, Maria Arias de Reyna, Mark Sondheim, " +"Markus Schaber, Maxime Guillaud, Maxime van Noppen, Michael Fuhr, Nikita " +"Shulga, Norman Vine, Rafal Magda, Ralph Mason, Richard Greenwood, Silvio " +"Grosso, Steffen Macke, Stephen Frost, Tom van Tilburg, Vincent Picavet" +msgstr "" + +#. Tag: term +#: introduction.xml:221 +#, no-c-format +msgid "Other contributors: Corporate Sponsors" +msgstr "" + +#. Tag: para +#: introduction.xml:224 +#, no-c-format +msgid "" +"These are corporate entities that have contributed developer time, hosting, " +"or direct monetary funding to the PostGIS project" +msgstr "" + +#. Tag: para +#: introduction.xml:225 +#, no-c-format +msgid "" +"In alphabetical order: Arrival 3D, Associazione Italiana per l'Informazione " +"Geografica Libera (GFOSS.it), AusVet, Avencia, Azavea, Cadcorp, CampToCamp, " +"City of Boston (DND), Clever Elephant Solutions, Cooperativa Alveo, Deimos " +"Space, Faunalia, Geographic Data BC, Hunter Systems Group, Lidwala " +"Consulting Engineers, LisaSoft, Logical Tracking & Tracing International " +"AG, Michigan Tech Research Institute, Norwegian Forest and Landscape " +"Institute, OpenGeo, OSGeo, Oslandia, Paragon Corporation, R3 GIS,, " +"Refractions Research, Regione Toscana-SIGTA, Safe Software, Sirius " +"Corporation plc, Stadt Uster, UC Davis Center for Vectorborne Diseases, " +"University of Laval, U.S Department of State (HIU), Vizzuality, Zonar Systems" +msgstr "" + +#. Tag: term +#: introduction.xml:265 +#, no-c-format +msgid "Crowd Funding Campaigns" +msgstr "" + +#. Tag: para +#: introduction.xml:268 +#, no-c-format +msgid "" +"Crowd funding campaigns are campaigns we run to get badly wanted features " +"funded that can service a large number of people. Each campaign is " +"specifically focused on a particular feature or set of features. Each " +"sponsor chips in a small fraction of the needed funding and with enough " +"people/organizations contributing, we have the funds to pay for the work " +"that will help many. If you have an idea for a feature you think many others " +"would be willing to co-fund, please post to the PostGIS newsgroup your " +"thoughts and together we can make it happen." +msgstr "" + +#. Tag: para +#: introduction.xml:269 +#, no-c-format +msgid "" +"PostGIS 2.0.0 was the first release we tried this strategy. We used PledgeBank and we got two " +"successful campaigns out of it." +msgstr "" + +#. Tag: para +#: introduction.xml:270 +#, no-c-format +msgid "" +"postgistopology - 10 plus sponsors each " +"contributed $250 USD to build toTopoGeometry function and beef up topology " +"support in 2.0.0. It happened." +msgstr "" + +#. Tag: para +#: introduction.xml:271 +#, no-c-format +msgid "" +"postgis64windows - 20 someodd sponsors each " +"contributed $100 USD to pay for the work needed to work out PostGIS 64-bit " +"on windows issues. It happened. We now have a 64-bit beta release for " +"PostGIS 2.0.0 and a final one planned for release that will be available on " +"PostgreSQL stack builder." +msgstr "" + +#. Tag: term +#: introduction.xml:276 +#, no-c-format +msgid "Important Support Libraries" +msgstr "" + +#. Tag: para +#: introduction.xml:279 +#, no-c-format +msgid "" +"The GEOS geometry " +"operations library, and the algorithmic work of Martin Davis in making it " +"all work, ongoing maintenance and support of Mateusz Loskot, Sandro Santilli " +"(strk), Paul Ramsey and others." +msgstr "" + +#. Tag: para +#: introduction.xml:284 +#, no-c-format +msgid "" +"The GDAL Geospatial Data " +"Abstraction Library, by Frank Warmerdam and others is used to power much of " +"the raster functionality introduced in PostGIS 2.0.0. In kind, improvements " +"needed in GDAL to support PostGIS are contributed back to the GDAL project." +msgstr "" + +#. Tag: para +#: introduction.xml:289 +#, no-c-format +msgid "" +"The Proj4 cartographic " +"projection library, and the work of Gerald Evenden and Frank Warmerdam in " +"creating and maintaining it." +msgstr "" + +#. Tag: para +#: introduction.xml:293 +#, no-c-format +msgid "" +"Last but not least, the PostgreSQL " +"DBMS, The giant that PostGIS stands on. Much of the speed and " +"flexibility of PostGIS would not be possible without the extensibility, " +"great query planner, GIST index, and plethora of SQL features provided by " +"PostgreSQL." +msgstr "" + +#. Tag: title +#: introduction.xml:302 +#, no-c-format +msgid "More Information" +msgstr "" + +#. Tag: para +#: introduction.xml:306 +#, no-c-format +msgid "" +"The latest software, documentation and news items are available at the " +"PostGIS web site, http://www.postgis." +"org." +msgstr "" + +#. Tag: para +#: introduction.xml:312 +#, no-c-format +msgid "" +"More information about the GEOS geometry operations library is available " +"at http://trac.osgeo.org/geos/." +msgstr "" + +#. Tag: para +#: introduction.xml:318 +#, no-c-format +msgid "" +"More information about the Proj4 reprojection library is available at http://trac.osgeo.org/proj/." +msgstr "" + +#. Tag: para +#: introduction.xml:324 +#, no-c-format +msgid "" +"More information about the PostgreSQL database server is available at the " +"PostgreSQL main site http://www." +"postgresql.org." +msgstr "" + +#. Tag: para +#: introduction.xml:330 +#, no-c-format +msgid "" +"More information about GiST indexing is available at the PostgreSQL GiST " +"development site, http://www.sai.msu.su/~megera/postgres/gist/." +msgstr "" + +#. Tag: para +#: introduction.xml:336 +#, no-c-format +msgid "" +"More information about MapServer internet map server is available at http://mapserver.org." +msgstr "" + +#. Tag: para +#: introduction.xml:342 +#, no-c-format +msgid "" +"The "Simple " +"Features for Specification for SQL" is available at the OpenGIS " +"Consortium web site: http://" +"www.opengeospatial.org/." +msgstr "" diff --git a/doc/po/it_IT/performance_tips.xml.po b/doc/po/it_IT/performance_tips.xml.po new file mode 100644 index 000000000..b03dee1ca --- /dev/null +++ b/doc/po/it_IT/performance_tips.xml.po @@ -0,0 +1,463 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: performance_tips.xml:3 +#, no-c-format +msgid "Performance tips" +msgstr "" + +#. Tag: title +#: performance_tips.xml:6 +#, no-c-format +msgid "Small tables of large geometries" +msgstr "" + +#. Tag: title +#: performance_tips.xml:9 +#, no-c-format +msgid "Problem description" +msgstr "" + +#. Tag: para +#: performance_tips.xml:11 +#, no-c-format +msgid "" +"Current PostgreSQL versions (including 8.0) suffer from a query optimizer " +"weakness regarding TOAST tables. TOAST tables are a kind of \"extension room" +"\" used to store large (in the sense of data size) values that do not fit " +"into normal data pages (like long texts, images or complex geometries with " +"lots of vertices), see the PostgreSQL Documentation for TOAST " +"for more information)." +msgstr "" + +#. Tag: para +#: performance_tips.xml:19 +#, no-c-format +msgid "" +"The problem appears if you happen to have a table with rather large " +"geometries, but not too much rows of them (like a table containing the " +"boundaries of all European countries in high resolution). Then the table " +"itself is small, but it uses lots of TOAST space. In our example case, the " +"table itself had about 80 rows and used only 3 data pages, but the TOAST " +"table used 8225 pages." +msgstr "" + +#. Tag: para +#: performance_tips.xml:26 +#, no-c-format +msgid "" +"Now issue a query where you use the geometry operator && to search " +"for a bounding box that matches only very few of those rows. Now the query " +"optimizer sees that the table has only 3 pages and 80 rows. He estimates " +"that a sequential scan on such a small table is much faster than using an " +"index. And so he decides to ignore the GIST index. Usually, this estimation " +"is correct. But in our case, the && operator has to fetch every " +"geometry from disk to compare the bounding boxes, thus reading all TOAST " +"pages, too." +msgstr "" + +#. Tag: para +#: performance_tips.xml:35 +#, no-c-format +msgid "" +"To see whether your suffer from this bug, use the \"EXPLAIN ANALYZE\" " +"postgresql command. For more information and the technical details, you can " +"read the thread on the postgres performance mailing list: http://archives." +"postgresql.org/pgsql-performance/2005-02/msg00030.php" +msgstr "" + +#. Tag: title +#: performance_tips.xml:43 +#, no-c-format +msgid "Workarounds" +msgstr "" + +#. Tag: para +#: performance_tips.xml:45 +#, no-c-format +msgid "" +"The PostgreSQL people are trying to solve this issue by making the query " +"estimation TOAST-aware. For now, here are two workarounds:" +msgstr "" + +#. Tag: para +#: performance_tips.xml:48 +#, no-c-format +msgid "" +"The first workaround is to force the query planner to use the index. Send " +"\"SET enable_seqscan TO off;\" to the server before issuing the query. This " +"basically forces the query planner to avoid sequential scans whenever " +"possible. So it uses the GIST index as usual. But this flag has to be set on " +"every connection, and it causes the query planner to make misestimations in " +"other cases, so you should \"SET enable_seqscan TO on;\" after the query." +msgstr "" + +#. Tag: para +#: performance_tips.xml:56 +#, no-c-format +msgid "" +"The second workaround is to make the sequential scan as fast as the query " +"planner thinks. This can be achieved by creating an additional column that " +"\"caches\" the bbox, and matching against this. In our example, the commands " +"are like:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:61 +#, no-c-format +msgid "" +"SELECT AddGeometryColumn" +"('myschema','mytable','bbox','4326','GEOMETRY','2'); \n" +"UPDATE mytable SET bbox = ST_Envelope(ST_Force_2d(the_geom));" +msgstr "" + +#. Tag: para +#: performance_tips.xml:63 +#, no-c-format +msgid "" +"Now change your query to use the && operator against bbox instead of " +"geom_column, like:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:66 +#, no-c-format +msgid "" +"SELECT geom_column \n" +"FROM mytable \n" +"WHERE bbox && ST_SetSRID('BOX3D(0 0,1 1)'::box3d,4326);" +msgstr "" + +#. Tag: para +#: performance_tips.xml:68 +#, no-c-format +msgid "" +"Of course, if you change or add rows to mytable, you have to keep the bbox " +"\"in sync\". The most transparent way to do this would be triggers, but you " +"also can modify your application to keep the bbox column current or run the " +"UPDATE query above after every modification." +msgstr "" + +#. Tag: title +#: performance_tips.xml:77 +#, no-c-format +msgid "CLUSTERing on geometry indices" +msgstr "" + +#. Tag: para +#: performance_tips.xml:79 +#, no-c-format +msgid "" +"For tables that are mostly read-only, and where a single index is used for " +"the majority of queries, PostgreSQL offers the CLUSTER command. This command " +"physically reorders all the data rows in the same order as the index " +"criteria, yielding two performance advantages: First, for index range scans, " +"the number of seeks on the data table is drastically reduced. Second, if " +"your working set concentrates to some small intervals on the indices, you " +"have a more efficient caching because the data rows are spread along fewer " +"data pages. (Feel invited to read the CLUSTER command documentation from the " +"PostgreSQL manual at this point.)" +msgstr "" + +#. Tag: para +#: performance_tips.xml:89 +#, no-c-format +msgid "" +"However, currently PostgreSQL does not allow clustering on PostGIS GIST " +"indices because GIST indices simply ignores NULL values, you get an error " +"message like:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:93 +#, no-c-format +msgid "" +"lwgeom=# CLUSTER my_geom_index ON my_table; \n" +"ERROR: cannot cluster when index access method does not handle null values\n" +"HINT: You may be able to work around this by marking column \"the_geom\" NOT " +"NULL." +msgstr "" + +#. Tag: para +#: performance_tips.xml:95 +#, no-c-format +msgid "" +"As the HINT message tells you, one can work around this deficiency by adding " +"a \"not null\" constraint to the table:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:98 +#, no-c-format +msgid "" +"lwgeom=# ALTER TABLE my_table ALTER COLUMN the_geom SET not null; \n" +"ALTER TABLE" +msgstr "" + +#. Tag: para +#: performance_tips.xml:100 +#, no-c-format +msgid "" +"Of course, this will not work if you in fact need NULL values in your " +"geometry column. Additionally, you must use the above method to add the " +"constraint, using a CHECK constraint like \"ALTER TABLE blubb ADD CHECK " +"(geometry is not null);\" will not work." +msgstr "" + +#. Tag: title +#: performance_tips.xml:107 +#, no-c-format +msgid "Avoiding dimension conversion" +msgstr "" + +#. Tag: para +#: performance_tips.xml:109 +#, no-c-format +msgid "" +"Sometimes, you happen to have 3D or 4D data in your table, but always access " +"it using OpenGIS compliant ST_AsText() or ST_AsBinary() functions that only " +"output 2D geometries. They do this by internally calling the ST_Force_2d() " +"function, which introduces a significant overhead for large geometries. To " +"avoid this overhead, it may be feasible to pre-drop those additional " +"dimensions once and forever:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:116 +#, no-c-format +msgid "" +"UPDATE mytable SET the_geom = ST_Force_2d(the_geom); \n" +"VACUUM FULL ANALYZE mytable;" +msgstr "" + +#. Tag: para +#: performance_tips.xml:118 +#, no-c-format +msgid "" +"Note that if you added your geometry column using AddGeometryColumn() " +"there'll be a constraint on geometry dimension. To bypass it you will need " +"to drop the constraint. Remember to update the entry in the geometry_columns " +"table and recreate the constraint afterwards." +msgstr "" + +#. Tag: para +#: performance_tips.xml:124 +#, no-c-format +msgid "" +"In case of large tables, it may be wise to divide this UPDATE into smaller " +"portions by constraining the UPDATE to a part of the table via a WHERE " +"clause and your primary key or another feasible criteria, and running a " +"simple \"VACUUM;\" between your UPDATEs. This drastically reduces the need " +"for temporary disk space. Additionally, if you have mixed dimension " +"geometries, restricting the UPDATE by \"WHERE dimension(the_geom)>2\" " +"skips re-writing of geometries that already are in 2D." +msgstr "" + +#. Tag: title +#: performance_tips.xml:136 +#, no-c-format +msgid "Tuning your configuration" +msgstr "" + +#. Tag: para +#: performance_tips.xml:138 +#, no-c-format +msgid "" +"These tips are taken from Kevin Neufeld's presentation \"Tips for the " +"PostGIS Power User\" at the FOSS4G 2007 conference. Depending on your use of " +"PostGIS (for example, static data and complex analysis vs frequently updated " +"data and lots of users) these changes can provide significant speedups to " +"your queries." +msgstr "" + +#. Tag: para +#: performance_tips.xml:144 +#, no-c-format +msgid "" +"For a more tips (and better formatting), the original presentation is at " +" http://2007.foss4g.org/presentations/view.php?" +"abstract_id=117." +msgstr "" + +#. Tag: title +#: performance_tips.xml:151 +#, no-c-format +msgid "Startup" +msgstr "" + +#. Tag: para +#: performance_tips.xml:153 +#, no-c-format +msgid "These settings are configured in postgresql.conf:" +msgstr "" + +#. Tag: ulink +#: performance_tips.xml:158 +#, no-c-format +msgid "checkpoint_segments" +msgstr "" + +#. Tag: para +#: performance_tips.xml:163 +#, no-c-format +msgid "" +"Maximum number of log file segments between automatic WAL checkpoints (each " +"segment is normally 16MB); default is 3" +msgstr "" + +#. Tag: para +#: performance_tips.xml:169 +#, no-c-format +msgid "" +"Set to at least 10 or 30 for databases with heavy write activity, or more " +"for large database loads. Another article on the topic worth reading Greg Smith: Checkpoint and Background writer" +msgstr "" + +#. Tag: para +#: performance_tips.xml:175 +#, no-c-format +msgid "Possibly store the xlog on a separate disk device" +msgstr "" + +#. Tag: ulink +#: performance_tips.xml:182 +#, no-c-format +msgid "constraint_exclusion" +msgstr "" + +#. Tag: para +#: performance_tips.xml:187 +#, no-c-format +msgid "" +"Default: off (prior to PostgreSQL 8.4 and for PostgreSQL 8.4+ is set to " +"partition)" +msgstr "" + +#. Tag: para +#: performance_tips.xml:192 +#, no-c-format +msgid "" +"This is generally used for table partitioning. If you are running PostgreSQL " +"versions below 8.4, set to \"on\" to ensure the query planner will optimize " +"as desired. As of PostgreSQL 8.4, the default for this is set to \"partition" +"\" which is ideal for PostgreSQL 8.4 and above since it will force the " +"planner to only analyze tables for constraint consideration if they are in " +"an inherited hierarchy and not pay the planner penalty otherwise." +msgstr "" + +#. Tag: ulink +#: performance_tips.xml:202 +#, no-c-format +msgid "shared_buffers" +msgstr "" + +#. Tag: para +#: performance_tips.xml:207 +#, no-c-format +msgid "Default: ~32MB" +msgstr "" + +#. Tag: para +#: performance_tips.xml:212 +#, no-c-format +msgid "Set to about 1/3 to 3/4 of available RAM" +msgstr "" + +#. Tag: title +#: performance_tips.xml:220 +#, no-c-format +msgid "Runtime" +msgstr "" + +#. Tag: para +#: performance_tips.xml:222 +#, no-c-format +msgid "" +"work_mem (the memory used for sort " +"operations and complex queries)" +msgstr "" + +#. Tag: para +#: performance_tips.xml:228 +#, no-c-format +msgid "Default: 1MB" +msgstr "" + +#. Tag: para +#: performance_tips.xml:233 +#, no-c-format +msgid "Adjust up for large dbs, complex queries, lots of RAM" +msgstr "" + +#. Tag: para +#: performance_tips.xml:238 +#, no-c-format +msgid "Adjust down for many concurrent users or low RAM." +msgstr "" + +#. Tag: para +#: performance_tips.xml:243 +#, no-c-format +msgid "If you have lots of RAM and few developers:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:245 +#, no-c-format +msgid "SET work_mem TO 1200000;" +msgstr "" + +#. Tag: para +#: performance_tips.xml:250 +#, no-c-format +msgid "" +"maintenance_work_mem (used " +"for VACUUM, CREATE INDEX, etc.)" +msgstr "" + +#. Tag: para +#: performance_tips.xml:256 +#, no-c-format +msgid "Default: 16MB" +msgstr "" + +#. Tag: para +#: performance_tips.xml:261 +#, no-c-format +msgid "Generally too low - ties up I/O, locks objects while swapping memory" +msgstr "" + +#. Tag: para +#: performance_tips.xml:266 +#, no-c-format +msgid "" +"Recommend 32MB to 256MB on production servers w/lots of RAM, but depends on " +"the # of concurrent users. If you have lots of RAM and few developers:" +msgstr "" + +#. Tag: programlisting +#: performance_tips.xml:269 +#, no-c-format +msgid "SET maintainence_work_mem TO 1200000;" +msgstr "" diff --git a/doc/po/it_IT/postgis.xml.po b/doc/po/it_IT/postgis.xml.po new file mode 100644 index 000000000..161783da7 --- /dev/null +++ b/doc/po/it_IT/postgis.xml.po @@ -0,0 +1,63 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: 2012-09-14 19:55+CEST\n" +"Last-Translator: Sandro Santilli \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: postgis.xml:106 +#, no-c-format +msgid "PostGIS &last_release_version; Manual" +msgstr "Manuale di PostGIS &last_release_version;" + +#. Tag: affiliation +#: postgis.xml:114 +#, no-c-format +msgid "" +"clever elephant
Victoria British Columbia Canada pramsey@cleverelephant.ca" +msgstr "" + +#. Tag: para +#: postgis.xml:124 +#, no-c-format +msgid "" +"PostGIS is an extension to the PostgreSQL object-relational database system " +"which allows GIS (Geographic Information Systems) objects to be stored in " +"the database. PostGIS includes support for GiST-based R-Tree spatial " +"indexes, and functions for analysis and processing of GIS objects." +msgstr "" +"PostGIS e' un'estensione per la base di dati relazionale ad oggetti PostgreSQL " +"che consente di conservare oggetti GIS (Sistemi di Informazione Geografica) nella " +"base di dati. PostGIS include il supporto per gli indici spaziali di tipo R-Tree " +"basati sul GiST e le funzioni per l'analisi e il trattamento degli oggetti GIS." + +#. Tag: para +#: postgis.xml:133 +#, no-c-format +msgid "This is the manual for version &last_release_version;" +msgstr "Questo e' il manuale per la versione &last_release_version;" + +#. Tag: para +#: postgis.xml:134 +#, no-c-format +msgid "" +"This work is licensed under a Creative Commons Attribution-Share Alike 3.0 License. Feel free to use this material any way you like, but we ask that you " +"attribute credit to the PostGIS Project and wherever possible, a link back " +"to http://www.postgis.org." +msgstr "" diff --git a/doc/po/it_IT/reference.xml.po b/doc/po/it_IT/reference.xml.po new file mode 100644 index 000000000..2f397612d --- /dev/null +++ b/doc/po/it_IT/reference.xml.po @@ -0,0 +1,55 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference.xml:3 +#, no-c-format +msgid "PostGIS Reference" +msgstr "" + +#. Tag: para +#: reference.xml:5 +#, no-c-format +msgid "" +"The functions given below are the ones which a user of PostGIS is likely to " +"need. There are other functions which are required support functions to the " +"PostGIS objects which are not of use to a general user." +msgstr "" + +#. Tag: para +#: reference.xml:11 +#, no-c-format +msgid "" +"PostGIS has begun a transition from the existing naming convention to an SQL-" +"MM-centric convention. As a result, most of the functions that you know and " +"love have been renamed using the standard spatial type (ST) prefix. Previous " +"functions are still available, though are not listed in this document where " +"updated functions are equivalent. The non ST_ functions not listed in this " +"documentation are deprecated and will be removed in a future release so STOP " +"USING THEM." +msgstr "" + +#. Tag: chapter +#: reference.xml:16 +#, no-c-format +msgid "" +"&reference_type; &reference_management; &reference_constructor; " +"&reference_accessor; &reference_editor; &reference_output; " +"&reference_operator; &reference_measure; &reference_processing; " +"&reference_lrs; &reference_transaction; &reference_misc; " +"&reference_exception;" +msgstr "" diff --git a/doc/po/it_IT/reference_accessor.xml.po b/doc/po/it_IT/reference_accessor.xml.po new file mode 100644 index 000000000..eee2bd410 --- /dev/null +++ b/doc/po/it_IT/reference_accessor.xml.po @@ -0,0 +1,3337 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_accessor.xml:4 +#, no-c-format +msgid "Geometry Accessors" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:8 +#, no-c-format +msgid "GeometryType" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:10 +#, no-c-format +msgid "" +"Returns the type of the geometry as a string. Eg: 'LINESTRING', " +"'POLYGON', 'MULTIPOINT', etc." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:16 +#, no-c-format +msgid "" +"text GeometryType " +"geometry geomA" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:24 reference_accessor.xml:81 +#: reference_accessor.xml:128 reference_accessor.xml:176 +#: reference_accessor.xml:224 reference_accessor.xml:273 +#: reference_accessor.xml:325 reference_accessor.xml:374 +#: reference_accessor.xml:435 reference_accessor.xml:486 +#: reference_accessor.xml:545 reference_accessor.xml:604 +#: reference_accessor.xml:659 reference_accessor.xml:703 +#: reference_accessor.xml:754 reference_accessor.xml:811 +#: reference_accessor.xml:876 reference_accessor.xml:928 +#: reference_accessor.xml:987 reference_accessor.xml:1033 +#: reference_accessor.xml:1068 reference_accessor.xml:1107 +#: reference_accessor.xml:1147 reference_accessor.xml:1193 +#: reference_accessor.xml:1232 reference_accessor.xml:1265 +#: reference_accessor.xml:1306 reference_accessor.xml:1350 +#: reference_accessor.xml:1407 reference_accessor.xml:1460 +#: reference_accessor.xml:1503 reference_accessor.xml:1554 +#: reference_accessor.xml:1618 reference_accessor.xml:1661 +#: reference_accessor.xml:1706 reference_accessor.xml:1752 +#: reference_accessor.xml:1794 reference_accessor.xml:1839 +#: reference_accessor.xml:1885 reference_accessor.xml:1927 +#: reference_accessor.xml:1973 reference_accessor.xml:2014 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:26 +#, no-c-format +msgid "" +"Returns the type of the geometry as a string. Eg: 'LINESTRING', " +"'POLYGON', 'MULTIPOINT', etc." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:29 +#, no-c-format +msgid "" +"OGC SPEC s2.1.1.1 - Returns the name of the instantiable subtype of Geometry " +"of which this Geometry instance is a member. The name of the instantiable " +"subtype of Geometry is returned as a string." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:35 +#, no-c-format +msgid "" +"This function also indicates if the geometry is measured, by returning a " +"string of the form 'POINTM'." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:38 reference_accessor.xml:388 +#: reference_accessor.xml:1152 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was " +"introduced." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:39 reference_accessor.xml:134 +#: reference_accessor.xml:390 reference_accessor.xml:497 +#: reference_accessor.xml:550 reference_accessor.xml:830 +#: reference_accessor.xml:996 reference_accessor.xml:1272 +#: reference_accessor.xml:1314 reference_accessor.xml:1423 +#: reference_accessor.xml:1757 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:40 reference_accessor.xml:136 +#: reference_accessor.xml:393 reference_accessor.xml:559 +#: reference_accessor.xml:624 reference_accessor.xml:670 +#: reference_accessor.xml:1074 reference_accessor.xml:1112 +#: reference_accessor.xml:1426 reference_accessor.xml:1468 +#: reference_accessor.xml:1671 reference_accessor.xml:1716 +#: reference_accessor.xml:1804 reference_accessor.xml:1849 +#: reference_accessor.xml:1937 reference_accessor.xml:1979 +#: reference_accessor.xml:2024 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:41 reference_accessor.xml:96 +#: reference_accessor.xml:137 reference_accessor.xml:231 +#: reference_accessor.xml:334 reference_accessor.xml:392 +#: reference_accessor.xml:441 reference_accessor.xml:499 +#: reference_accessor.xml:558 reference_accessor.xml:623 +#: reference_accessor.xml:768 reference_accessor.xml:998 +#: reference_accessor.xml:1038 reference_accessor.xml:1073 +#: reference_accessor.xml:1111 reference_accessor.xml:1156 +#: reference_accessor.xml:1271 reference_accessor.xml:1367 +#: reference_accessor.xml:1425 reference_accessor.xml:1510 +#: reference_accessor.xml:1626 reference_accessor.xml:1670 +#: reference_accessor.xml:1715 reference_accessor.xml:1759 +#: reference_accessor.xml:1803 reference_accessor.xml:1848 +#: reference_accessor.xml:1893 reference_accessor.xml:1936 +#: reference_accessor.xml:1978 reference_accessor.xml:2023 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:42 reference_accessor.xml:138 +#: reference_accessor.xml:189 reference_accessor.xml:394 +#: reference_accessor.xml:442 reference_accessor.xml:562 +#: reference_accessor.xml:1075 reference_accessor.xml:1157 +#: reference_accessor.xml:1274 reference_accessor.xml:1368 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:43 reference_accessor.xml:139 +#: reference_accessor.xml:190 reference_accessor.xml:395 +#: reference_accessor.xml:1158 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:49 reference_accessor.xml:100 +#: reference_accessor.xml:144 reference_accessor.xml:194 +#: reference_accessor.xml:241 reference_accessor.xml:295 +#: reference_accessor.xml:339 reference_accessor.xml:447 +#: reference_accessor.xml:505 reference_accessor.xml:629 +#: reference_accessor.xml:677 reference_accessor.xml:722 +#: reference_accessor.xml:773 reference_accessor.xml:837 +#: reference_accessor.xml:893 reference_accessor.xml:953 +#: reference_accessor.xml:1004 reference_accessor.xml:1042 +#: reference_accessor.xml:1080 reference_accessor.xml:1117 +#: reference_accessor.xml:1163 reference_accessor.xml:1204 +#: reference_accessor.xml:1278 reference_accessor.xml:1319 +#: reference_accessor.xml:1374 reference_accessor.xml:1432 +#: reference_accessor.xml:1473 reference_accessor.xml:1520 +#: reference_accessor.xml:1574 reference_accessor.xml:1632 +#: reference_accessor.xml:1676 reference_accessor.xml:1721 +#: reference_accessor.xml:1765 reference_accessor.xml:1809 +#: reference_accessor.xml:1854 reference_accessor.xml:1898 +#: reference_accessor.xml:1942 reference_accessor.xml:1984 +#: reference_accessor.xml:2029 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:51 +#, no-c-format +msgid "" +"SELECT GeometryType(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 " +"29.26,77.27 29.31,77.29 29.07)'));\n" +" geometrytype\n" +"--------------\n" +" LINESTRING" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:52 +#, no-c-format +msgid "" +"SELECT ST_GeometryType(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 " +"1 1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 " +"1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 " +"1, 0 1 1, 0 0 1)) )'));\n" +" --result\n" +" POLYHEDRALSURFACE" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:53 +#, no-c-format +msgid "" +"SELECT GeometryType(geom) as result\n" +" FROM\n" +" (SELECT \n" +" ST_GeomFromEWKT('TIN (((\n" +" 0 0 0, \n" +" 0 0 1, \n" +" 0 1 0, \n" +" 0 0 0\n" +" )), ((\n" +" 0 0 0, \n" +" 0 1 0, \n" +" 1 1 0, \n" +" 0 0 0\n" +" ))\n" +" )') AS geom\n" +" ) AS g;\n" +" result\n" +"--------\n" +" TIN" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:58 reference_accessor.xml:105 +#: reference_accessor.xml:151 reference_accessor.xml:199 +#: reference_accessor.xml:247 reference_accessor.xml:300 +#: reference_accessor.xml:344 reference_accessor.xml:414 +#: reference_accessor.xml:458 reference_accessor.xml:512 +#: reference_accessor.xml:579 reference_accessor.xml:635 +#: reference_accessor.xml:728 reference_accessor.xml:779 +#: reference_accessor.xml:843 reference_accessor.xml:900 +#: reference_accessor.xml:960 reference_accessor.xml:1010 +#: reference_accessor.xml:1047 reference_accessor.xml:1085 +#: reference_accessor.xml:1124 reference_accessor.xml:1168 +#: reference_accessor.xml:1209 reference_accessor.xml:1243 +#: reference_accessor.xml:1283 reference_accessor.xml:1324 +#: reference_accessor.xml:1381 reference_accessor.xml:1438 +#: reference_accessor.xml:1478 reference_accessor.xml:1526 +#: reference_accessor.xml:1580 reference_accessor.xml:1638 +#: reference_accessor.xml:1683 reference_accessor.xml:1728 +#: reference_accessor.xml:1771 reference_accessor.xml:1816 +#: reference_accessor.xml:1861 reference_accessor.xml:1904 +#: reference_accessor.xml:1949 reference_accessor.xml:1991 +#: reference_accessor.xml:2036 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:64 +#, no-c-format +msgid "ST_Boundary" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:66 +#, no-c-format +msgid "Returns the closure of the combinatorial boundary of this Geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:72 +#, no-c-format +msgid "" +"geometry ST_Boundary " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:83 +#, no-c-format +msgid "" +"Returns the closure of the combinatorial boundary of this Geometry. The " +"combinatorial boundary is defined as described in section 3.12.3.2 of the " +"OGC SPEC. Because the result of this function is a closure, and hence " +"topologically closed, the resulting boundary can be represented using " +"representational geometry primitives as discussed in the OGC SPEC, section " +"3.12.2." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:90 +#, no-c-format +msgid "Performed by the GEOS module" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:92 +#, no-c-format +msgid "" +"Prior to 2.0.0, this function throws an exception if used with " +"GEOMETRYCOLLECTION. From 2.0.0 up it will return NULL " +"instead (unsupported input)." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:94 +#, no-c-format +msgid "&sfs_compliant; OGC SPEC s2.1.1.1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:95 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.14" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:102 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Boundary(ST_GeomFromText('LINESTRING(1 1,0 0, -1 " +"1)')));\n" +"st_astext\n" +"-----------\n" +"MULTIPOINT(1 1,-1 1)\n" +"\n" +"SELECT ST_AsText(ST_Boundary(ST_GeomFromText('POLYGON((1 1,0 0, -1 1, 1 " +"1))')));\n" +"st_astext\n" +"----------\n" +"LINESTRING(1 1,0 0,-1 1,1 1)\n" +"\n" +"--Using a 3d polygon\n" +"SELECT ST_AsEWKT(ST_Boundary(ST_GeomFromEWKT('POLYGON((1 1 1,0 0 1, -1 1 1, " +"1 1 1))')));\n" +"\n" +"st_asewkt\n" +"-----------------------------------\n" +"LINESTRING(1 1 1,0 0 1,-1 1 1,1 1 1)\n" +"\n" +"--Using a 3d multilinestring\n" +"SELECT ST_AsEWKT(ST_Boundary(ST_GeomFromEWKT('MULTILINESTRING((1 1 1,0 0 " +"0.5, -1 1 1),(1 1 0.5,0 0 0.5, -1 1 0.5, 1 1 0.5) )')));\n" +"\n" +"st_asewkt\n" +"----------\n" +"MULTIPOINT(-1 1 1,1 1 0.75)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:107 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:113 +#, no-c-format +msgid "ST_CoordDim" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:115 +#, no-c-format +msgid "" +"Return the coordinate dimension of the ST_Geometry value." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:120 +#, no-c-format +msgid "" +"integer ST_CoordDim " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:130 +#, no-c-format +msgid "Return the coordinate dimension of the ST_Geometry value." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:132 +#, no-c-format +msgid "This is the MM compliant alias name for " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:135 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.3" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:146 +#, no-c-format +msgid "" +"SELECT ST_CoordDim('CIRCULARSTRING(1 2 3, 1 3 4, 5 6 7, 8 9 10, 11 12 " +"13)');\n" +" ---result--\n" +" 3\n" +"\n" +" SELECT ST_CoordDim(ST_Point(1,2));\n" +" --result--\n" +" 2" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:159 +#, no-c-format +msgid "ST_Dimension" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:161 +#, no-c-format +msgid "" +"The inherent dimension of this Geometry object, which must be less than or " +"equal to the coordinate dimension." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:167 +#, no-c-format +msgid "" +"integer ST_Dimension " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:178 +#, no-c-format +msgid "" +"The inherent dimension of this Geometry object, which must be less than or " +"equal to the coordinate dimension. OGC SPEC s2.1.1.1 - returns 0 for " +"POINT, 1 for LINESTRING, 2 for " +"POLYGON, and the largest dimension of the components of a " +"GEOMETRYCOLLECTION. If unknown (empty geometry) null is " +"returned." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:186 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.2" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:187 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces and TINs was introduced. No " +"longer throws an exception if given empty geometry." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:188 +#, no-c-format +msgid "" +"Prior to 2.0.0, this function throws an exception if used with empty " +"geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:196 +#, no-c-format +msgid "" +"SELECT ST_Dimension('GEOMETRYCOLLECTION(LINESTRING(1 1,0 0),POINT(0 0))');\n" +"ST_Dimension\n" +"-----------\n" +"1" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:207 +#, no-c-format +msgid "ST_EndPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:209 +#, no-c-format +msgid "" +"Returns the last point of a LINESTRING geometry as a " +"POINT." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:215 +#, no-c-format +msgid "" +"boolean ST_EndPoint " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:226 +#, no-c-format +msgid "" +"Returns the last point of a LINESTRING geometry as a " +"POINT or NULL if the input parameter " +"is not a LINESTRING." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:230 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.4" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:232 reference_accessor.xml:1511 +#, no-c-format +msgid "" +"Changed: 2.0.0 no longer works with single geometry multilinestrings. In " +"older versions of PostGIS -- a single line multilinestring would work " +"happily with this function and return the start point. In 2.0.0 it just " +"returns NULL like any other multilinestring. The older behavior was an " +"undocumented feature, but people who assumed they had their data stored as " +"LINESTRING may experience these returning NULL in 2.0 now." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:243 +#, no-c-format +msgid "" +"postgis=# SELECT ST_AsText(ST_EndPoint('LINESTRING(1 1, 2 2, 3 3)'::" +"geometry));\n" +" st_astext\n" +"------------\n" +" POINT(3 3)\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_EndPoint('POINT(1 1)'::geometry) IS NULL AS is_null;\n" +" is_null\n" +"----------\n" +" t\n" +"(1 row)\n" +"\n" +"--3d endpoint\n" +"SELECT ST_AsEWKT(ST_EndPoint('LINESTRING(1 1 2, 1 2 3, 0 0 5)'));\n" +" st_asewkt\n" +"--------------\n" +" POINT(0 0 5)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:249 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:256 +#, no-c-format +msgid "ST_Envelope" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:258 +#, no-c-format +msgid "" +"Returns a geometry representing the double precision (float8) bounding box " +"of the supplied geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:264 +#, no-c-format +msgid "" +"geometry ST_Envelope " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:275 +#, no-c-format +msgid "" +"Returns the float8 minimum bounding box for the supplied geometry, as a " +"geometry. The polygon is defined by the corner points of the bounding box " +"((MINX, MINY), (MINX, MAXY), (MAXX, MAXY), (MAXX, MINY), " +"(MINX, MINY)). (PostGIS will add a " +"ZMIN/ZMAX coordinate as well)." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:285 +#, no-c-format +msgid "" +"Degenerate cases (vertical lines, points) will return a geometry of lower " +"dimension than POLYGON, ie. POINT or " +"LINESTRING." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:289 +#, no-c-format +msgid "" +"Availability: 1.5.0 behavior changed to output double precision instead of " +"float4" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:290 reference_accessor.xml:668 +#: reference_accessor.xml:766 reference_accessor.xml:1466 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:291 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.15" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:297 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Envelope('POINT(1 3)'::geometry));\n" +" st_astext\n" +"------------\n" +" POINT(1 3)\n" +"(1 row)\n" +"\n" +"\n" +"SELECT ST_AsText(ST_Envelope('LINESTRING(0 0, 1 3)'::geometry));\n" +" st_astext\n" +"--------------------------------\n" +" POLYGON((0 0,0 3,1 3,1 0,0 0))\n" +"(1 row)\n" +"\n" +"\n" +"SELECT ST_AsText(ST_Envelope('POLYGON((0 0, 0 1, 1.0000001 1, 1.0000001 0, 0 " +"0))'::geometry));\n" +" st_astext\n" +"--------------------------------------------------------------\n" +" POLYGON((0 0,0 1,1.00000011920929 1,1.00000011920929 0,0 0))\n" +"(1 row)\n" +"SELECT ST_AsText(ST_Envelope('POLYGON((0 0, 0 1, 1.0000000001 1, " +"1.0000000001 0, 0 0))'::geometry));\n" +" st_astext\n" +"--------------------------------------------------------------\n" +" POLYGON((0 0,0 1,1.00000011920929 1,1.00000011920929 0,0 0))\n" +"(1 row)\n" +" \n" +"SELECT Box3D(geom), Box2D(geom), ST_AsText(ST_Envelope(geom)) As " +"envelopewkt\n" +" FROM (SELECT 'POLYGON((0 0, 0 1000012333334.34545678, 1.0000001 1, " +"1.0000001 0, 0 0))'::geometry As geom) As foo;\n" +"\n" +"" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:302 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:308 +#, no-c-format +msgid "ST_ExteriorRing" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:310 +#, no-c-format +msgid "" +"Returns a line string representing the exterior ring of the " +"POLYGON geometry. Return NULL if the geometry is not a " +"polygon. Will not work with MULTIPOLYGON" +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:316 +#, no-c-format +msgid "" +"geometry ST_ExteriorRing " +"geometry a_polygon" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:327 +#, no-c-format +msgid "" +"Returns a line string representing the exterior ring of the " +"POLYGON geometry. Return NULL if the geometry is not a " +"polygon." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:330 +#, no-c-format +msgid "Only works with POLYGON geometry types" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:332 reference_accessor.xml:712 +#, no-c-format +msgid "&sfs_compliant; 2.1.5.1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:333 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.2.3, 8.3.3" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:340 +#, no-c-format +msgid "" +"--If you have a table of polygons\n" +"SELECT gid, ST_ExteriorRing(the_geom) AS ering\n" +"FROM sometable;\n" +"\n" +"--If you have a table of MULTIPOLYGONs\n" +"--and want to return a MULTILINESTRING composed of the exterior rings of " +"each polygon\n" +"SELECT gid, ST_Collect(ST_ExteriorRing(the_geom)) AS erings\n" +" FROM (SELECT gid, (ST_Dump(the_geom)).geom As the_geom\n" +" FROM sometable) As foo\n" +"GROUP BY gid;\n" +"\n" +"--3d Example\n" +"SELECT ST_AsEWKT(\n" +" ST_ExteriorRing(\n" +" ST_GeomFromEWKT('POLYGON((0 0 1, 1 1 1, 1 2 1, 1 1 1, 0 0 1))')\n" +" )\n" +");\n" +"\n" +"st_asewkt\n" +"---------\n" +"LINESTRING(0 0 1,1 1 1,1 2 1,1 1 1,0 0 1)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:346 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:356 +#, no-c-format +msgid "ST_GeometryN" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:358 +#, no-c-format +msgid "" +"Return the 1-based Nth geometry if the geometry is a GEOMETRYCOLLECTION, " +"(MULTI)POINT, (MULTI)LINESTRING, MULTICURVE or (MULTI)POLYGON, " +"POLYHEDRALSURFACE Otherwise, return NULL." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:365 +#, no-c-format +msgid "" +"geometry ST_GeometryN " +"geometry geomA " +"integer n" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:376 +#, no-c-format +msgid "" +"Return the 1-based Nth geometry if the geometry is a GEOMETRYCOLLECTION, " +"(MULTI)POINT, (MULTI)LINESTRING, MULTICURVE or (MULTI)POLYGON, " +"POLYHEDRALSURFACE Otherwise, return NULL" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:381 reference_accessor.xml:1414 +#, no-c-format +msgid "" +"Index is 1-based as for OGC specs since version 0.8.0. Previous versions " +"implemented this as 0-based instead." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:386 +#, no-c-format +msgid "" +"If you want to extract all geometries, of a geometry, ST_Dump is more " +"efficient and will also work for singular geoms." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:389 +#, no-c-format +msgid "" +"Changed: 2.0.0 Prior versions would return NULL for singular geometries. " +"This was changed to return the geometry for ST_GeometryN(..,1) case." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:391 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 9.1.5" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:401 +#, no-c-format +msgid "Standard Examples" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:403 +#, no-c-format +msgid "" +"--Extracting a subset of points from a 3d multipoint\n" +"SELECT n, ST_AsEWKT(ST_GeometryN(the_geom, n)) As geomewkt\n" +"FROM (\n" +"VALUES (ST_GeomFromEWKT('MULTIPOINT(1 2 7, 3 4 7, 5 6 7, 8 9 10)') ),\n" +"( ST_GeomFromEWKT('MULTICURVE(CIRCULARSTRING(2.5 2.5,4.5 2.5, 3.5 3.5), (10 " +"11, 12 11))') )\n" +" )As foo(the_geom)\n" +" CROSS JOIN generate_series(1,100) n\n" +"WHERE n <= ST_NumGeometries(the_geom);\n" +"\n" +" n | geomewkt\n" +"---+-----------------------------------------\n" +" 1 | POINT(1 2 7)\n" +" 2 | POINT(3 4 7)\n" +" 3 | POINT(5 6 7)\n" +" 4 | POINT(8 9 10)\n" +" 1 | CIRCULARSTRING(2.5 2.5,4.5 2.5,3.5 3.5)\n" +" 2 | LINESTRING(10 11,12 11)\n" +"\n" +"\n" +"--Extracting all geometries (useful when you want to assign an id)\n" +"SELECT gid, n, ST_GeometryN(the_geom, n)\n" +"FROM sometable CROSS JOIN generate_series(1,100) n\n" +"WHERE n <= ST_NumGeometries(the_geom);" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:406 +#, no-c-format +msgid "Polyhedral Surfaces, TIN and Triangle Examples" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:407 +#, no-c-format +msgid "" +"-- Polyhedral surface example\n" +"-- Break a Polyhedral surface into its faces\n" +"SELECT ST_AsEWKT(ST_GeometryN(p_geom,3)) As geom_ewkt\n" +" FROM (SELECT ST_GeomFromEWKT('POLYHEDRALSURFACE( \n" +"((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)), \n" +"((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), \n" +"((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 0)), \n" +"((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +"((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), \n" +"((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 1)) \n" +")') AS p_geom ) AS a;\n" +"\n" +" geom_ewkt\n" +"------------------------------------------\n" +" POLYGON((0 0 0,1 0 0,1 0 1,0 0 1,0 0 0))" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:409 +#, no-c-format +msgid "" +"-- TIN -- \n" +"SELECT ST_AsEWKT(ST_GeometryN(geom,2)) as wkt\n" +" FROM\n" +" (SELECT \n" +" ST_GeomFromEWKT('TIN (((\n" +" 0 0 0, \n" +" 0 0 1, \n" +" 0 1 0, \n" +" 0 0 0\n" +" )), ((\n" +" 0 0 0, \n" +" 0 1 0, \n" +" 1 1 0, \n" +" 0 0 0\n" +" ))\n" +" )') AS geom\n" +" ) AS g;\n" +"-- result --\n" +" wkt\n" +"-------------------------------------\n" +" TRIANGLE((0 0 0,0 1 0,1 1 0,0 0 0))" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:416 reference_accessor.xml:1285 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:422 +#, no-c-format +msgid "ST_GeometryType" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:423 +#, no-c-format +msgid "Return the geometry type of the ST_Geometry value." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:428 +#, no-c-format +msgid "" +"text ST_GeometryType " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:437 +#, no-c-format +msgid "" +"Returns the type of the geometry as a string. EG: 'ST_Linestring', " +"'ST_Polygon','ST_MultiPolygon' etc. This function differs from GeometryType" +"(geometry) in the case of the string and ST in front that is returned, as " +"well as the fact that it will not indicate whether the geometry is measured." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:439 reference_accessor.xml:560 +#: reference_accessor.xml:1071 +#, no-c-format +msgid "Enhanced: 2.0.0 support for Polyhedral surfaces was introduced." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:440 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.4" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:449 +#, no-c-format +msgid "" +"SELECT ST_GeometryType(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 " +"29.26,77.27 29.31,77.29 29.07)'));\n" +" --result\n" +" ST_LineString" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:451 reference_accessor.xml:453 +#, no-c-format +msgid "" +"SELECT ST_GeometryType(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 " +"1 1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 " +"1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 " +"1, 0 1 1, 0 0 1)) )'));\n" +" --result\n" +" ST_PolyhedralSurface" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:455 +#, no-c-format +msgid "" +"SELECT ST_GeometryType(geom) as result\n" +" FROM\n" +" (SELECT \n" +" ST_GeomFromEWKT('TIN (((\n" +" 0 0 0, \n" +" 0 0 1, \n" +" 0 1 0, \n" +" 0 0 0\n" +" )), ((\n" +" 0 0 0, \n" +" 0 1 0, \n" +" 1 1 0, \n" +" 0 0 0\n" +" ))\n" +" )') AS geom\n" +" ) AS g;\n" +" result\n" +"--------\n" +" ST_Tin" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:468 +#, no-c-format +msgid "ST_InteriorRingN" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:470 +#, no-c-format +msgid "" +"Return the Nth interior linestring ring of the polygon geometry. Return NULL " +"if the geometry is not a polygon or the given N is out of range." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:477 +#, no-c-format +msgid "" +"geometry ST_InteriorRingN " +"geometry a_polygon " +"integer n" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:488 +#, no-c-format +msgid "" +"Return the Nth interior linestring ring of the polygon geometry. Return NULL " +"if the geometry is not a polygon or the given N is out of range. index " +"starts at 1." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:494 +#, no-c-format +msgid "" +"This will not work for MULTIPOLYGONs. Use in conjunction with ST_Dump for " +"MULTIPOLYGONS" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:498 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.2.6, 8.3.5" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:507 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_InteriorRingN(the_geom, 1)) As the_geom\n" +"FROM (SELECT ST_BuildArea(\n" +" ST_Collect(ST_Buffer(ST_Point(1,2), 20,3),\n" +" ST_Buffer(ST_Point(1, 2), 10,3))) As the_geom\n" +" ) as foo" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:514 +#, no-c-format +msgid "" +", , , ," +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:527 +#, no-c-format +msgid "ST_IsClosed" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:529 +#, no-c-format +msgid "" +"Returns TRUE if the LINESTRING's start " +"and end points are coincident. For Polyhedral surface is closed (volumetric)." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:536 +#, no-c-format +msgid "" +"boolean ST_IsClosed " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:547 +#, no-c-format +msgid "" +"Returns TRUE if the LINESTRING's start " +"and end points are coincident. For Polyhedral Surfaces, it tells you if the " +"surface is areal (open) or volumetric (closed)." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:551 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.5, 9.3.3" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:553 +#, no-c-format +msgid "" +"SQL-MM defines the result of ST_IsClosed(NULL) to be 0, while PostGIS returns NULL." +msgstr "" + +#. Tag: title +#: reference_accessor.xml:567 +#, no-c-format +msgid "Line String and Point Examples" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:569 +#, no-c-format +msgid "" +"postgis=# SELECT ST_IsClosed('LINESTRING(0 0, 1 1)'::geometry);\n" +" st_isclosed\n" +"-------------\n" +" f\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsClosed('LINESTRING(0 0, 0 1, 1 1, 0 0)'::geometry);\n" +" st_isclosed\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsClosed('MULTILINESTRING((0 0, 0 1, 1 1, 0 0),(0 0, 1 " +"1))'::geometry);\n" +" st_isclosed\n" +"-------------\n" +" f\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsClosed('POINT(0 0)'::geometry);\n" +" st_isclosed\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsClosed('MULTIPOINT((0 0), (1 1))'::geometry);\n" +" st_isclosed\n" +"-------------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: title +#: reference_accessor.xml:573 +#, no-c-format +msgid "Polyhedral Surface Examples" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:575 +#, no-c-format +msgid "" +"-- A cube --\n" +" SELECT ST_IsClosed(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 " +"0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 " +"1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 " +"1, 0 1 1, 0 0 1)) )'));\n" +"\n" +" st_isclosed\n" +"-------------\n" +" t\n" +"\n" +"\n" +" -- Same as cube but missing a side --\n" +" SELECT ST_IsClosed(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 " +"1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 " +"1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)) )'));\n" +"\n" +" st_isclosed\n" +"-------------\n" +" f" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:587 +#, no-c-format +msgid "ST_IsCollection" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:589 +#, no-c-format +msgid "" +"Returns TRUE if the argument is a collection " +"(MULTI*, GEOMETRYCOLLECTION, ...)" +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:596 +#, no-c-format +msgid "" +"boolean ST_IsCollection " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:606 +#, no-c-format +msgid "" +"Returns TRUE if the geometry type of the argument is " +"either:" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:609 +#, no-c-format +msgid "GEOMETRYCOLLECTION" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:610 +#, no-c-format +msgid "MULTI{POINT,POLYGON,LINESTRING,CURVE,SURFACE}" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:611 +#, no-c-format +msgid "COMPOUNDCURVE" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:616 +#, no-c-format +msgid "" +"This function analyzes the type of the geometry. This means that it will " +"return TRUE on collections that are empty or that contain " +"a single element." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:631 +#, no-c-format +msgid "" +"postgis=# SELECT ST_IsCollection('LINESTRING(0 0, 1 1)'::geometry);\n" +" st_iscollection\n" +"-------------\n" +" f\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsCollection('MULTIPOINT EMPTY'::geometry);\n" +" st_iscollection\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsCollection('MULTIPOINT((0 0))'::geometry);\n" +" st_iscollection\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsCollection('MULTIPOINT((0 0), (42 42))'::geometry);\n" +" st_iscollection\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_IsCollection('GEOMETRYCOLLECTION(POINT(0 0))'::" +"geometry);\n" +" st_iscollection\n" +"-------------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:643 +#, no-c-format +msgid "ST_IsEmpty" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:645 +#, no-c-format +msgid "" +"Returns true if this Geometry is an empty geometrycollection, polygon, point " +"etc." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:651 +#, no-c-format +msgid "" +"boolean ST_IsEmpty " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:661 +#, no-c-format +msgid "" +"Returns true if this Geometry is an empty geometry. If true, then this " +"Geometry represents an empty geometry collection, polygon, point etc." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:664 +#, no-c-format +msgid "" +"SQL-MM defines the result of ST_IsEmpty(NULL) to be 0, while PostGIS returns " +"NULL." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:669 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.7" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:671 +#, no-c-format +msgid "" +"Changed: 2.0.0 In prior versions of PostGIS ST_GeomFromText" +"('GEOMETRYCOLLECTION(EMPTY)') was allowed. This is now illegal in PostGIS " +"2.0.0 to better conform with SQL/MM standards" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:679 +#, no-c-format +msgid "" +"SELECT ST_IsEmpty(ST_GeomFromText('GEOMETRYCOLLECTION EMPTY'));\n" +" st_isempty\n" +"------------\n" +" t\n" +"(1 row)\n" +"\n" +" SELECT ST_IsEmpty(ST_GeomFromText('POLYGON EMPTY'));\n" +" st_isempty\n" +"------------\n" +" t\n" +"(1 row)\n" +"\n" +"SELECT ST_IsEmpty(ST_GeomFromText('POLYGON((1 2, 3 4, 5 6, 1 2))'));\n" +"\n" +" st_isempty\n" +"------------\n" +" f\n" +"(1 row)\n" +"\n" +" SELECT ST_IsEmpty(ST_GeomFromText('POLYGON((1 2, 3 4, 5 6, 1 2))')) = " +"false;\n" +" ?column?\n" +"----------\n" +" t\n" +"(1 row)\n" +"\n" +" SELECT ST_IsEmpty(ST_GeomFromText('CIRCULARSTRING EMPTY'));\n" +" st_isempty\n" +"------------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:686 +#, no-c-format +msgid "ST_IsRing" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:688 +#, no-c-format +msgid "" +"Returns TRUE if this LINESTRING is " +"both closed and simple." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:694 +#, no-c-format +msgid "" +"boolean ST_IsRing " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:705 +#, no-c-format +msgid "" +"Returns TRUE if this LINESTRING is " +"both (ST_StartPoint(g) ~= ST_Endpoint" +"(g)) and " +"(does not self intersect)." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:713 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.6" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:715 +#, no-c-format +msgid "" +"SQL-MM defines the result of ST_IsRing(NULL) to be 0, while PostGIS returns NULL." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:724 +#, no-c-format +msgid "" +"SELECT ST_IsRing(the_geom), ST_IsClosed(the_geom), ST_IsSimple(the_geom)\n" +"FROM (SELECT 'LINESTRING(0 0, 0 1, 1 1, 1 0, 0 0)'::geometry AS the_geom) AS " +"foo;\n" +" st_isring | st_isclosed | st_issimple\n" +"-----------+-------------+-------------\n" +" t | t | t\n" +"(1 row)\n" +"\n" +"SELECT ST_IsRing(the_geom), ST_IsClosed(the_geom), ST_IsSimple(the_geom)\n" +"FROM (SELECT 'LINESTRING(0 0, 0 1, 1 0, 1 1, 0 0)'::geometry AS the_geom) AS " +"foo;\n" +" st_isring | st_isclosed | st_issimple\n" +"-----------+-------------+-------------\n" +" f | t | f\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:730 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:738 +#, no-c-format +msgid "ST_IsSimple" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:740 +#, no-c-format +msgid "" +"Returns (TRUE) if this Geometry has no anomalous geometric points, such as " +"self intersection or self tangency." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:746 +#, no-c-format +msgid "" +"boolean ST_IsSimple " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:756 +#, no-c-format +msgid "" +"Returns true if this Geometry has no anomalous geometric points, such as " +"self intersection or self tangency. For more information on the OGC's " +"definition of geometry simplicity and validity, refer to \"Ensuring OpenGIS compliancy of geometries\"" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:762 +#, no-c-format +msgid "" +"SQL-MM defines the result of ST_IsSimple(NULL) to be 0, while PostGIS " +"returns NULL." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:767 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.8" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:775 +#, no-c-format +msgid "" +"SELECT ST_IsSimple(ST_GeomFromText('POLYGON((1 2, 3 4, 5 6, 1 2))'));\n" +" st_issimple\n" +"-------------\n" +" t\n" +"(1 row)\n" +"\n" +" SELECT ST_IsSimple(ST_GeomFromText('LINESTRING(1 1,2 2,2 3.5,1 3,1 2,2 " +"1)'));\n" +" st_issimple\n" +"-------------\n" +" f\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:787 +#, no-c-format +msgid "ST_IsValid" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:789 +#, no-c-format +msgid "" +"Returns true if the ST_Geometry is " +"well formed." +msgstr "" + +#. Tag: funcsynopsis +#: reference_accessor.xml:795 +#, no-c-format +msgid "" +" boolean ST_IsValid " +"geometry g boolean ST_IsValid geometry g integer flags " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:813 +#, no-c-format +msgid "" +"Test if an ST_Geometry value is well formed. For geometries that are " +"invalid, the PostgreSQL NOTICE will provide details of why it is not valid. " +"For more information on the OGC's definition of geometry simplicity and " +"validity, refer to \"Ensuring OpenGIS " +"compliancy of geometries\"" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:819 +#, no-c-format +msgid "" +"SQL-MM defines the result of ST_IsValid(NULL) to be 0, while PostGIS returns " +"NULL." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:823 +#, no-c-format +msgid "" +"The version accepting flags is available starting with 2.0.0 and requires " +"GEOS >= 3.3.0. Such version does not print a NOTICE explaining the " +"invalidity. Allowed flags are documented in ." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:831 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.9" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:839 +#, no-c-format +msgid "" +"SELECT ST_IsValid(ST_GeomFromText('LINESTRING(0 0, 1 1)')) As good_line,\n" +" ST_IsValid(ST_GeomFromText('POLYGON((0 0, 1 1, 1 2, 1 1, 0 0))')) As " +"bad_poly\n" +"--results\n" +"NOTICE: Self-intersection at or near point 0 0\n" +" good_line | bad_poly\n" +"-----------+----------\n" +" t | f" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:845 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:856 +#, no-c-format +msgid "ST_IsValidReason" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:858 +#, no-c-format +msgid "" +"Returns text stating if a geometry is valid or not and if not valid, a " +"reason why." +msgstr "" + +#. Tag: funcsynopsis +#: reference_accessor.xml:862 +#, no-c-format +msgid "" +" text ST_IsValidReason geometry geomA text " +"ST_IsValidReason geometry geomA integer flags " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:878 +#, no-c-format +msgid "" +"Returns text stating if a geometry is valid or not an if not valid, a reason " +"why." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:880 +#, no-c-format +msgid "" +"Useful in combination with ST_IsValid to generate a detailed report of " +"invalid geometries and reasons." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:882 +#, no-c-format +msgid "" +"Allowed flags are documented in ." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:886 +#, no-c-format +msgid "Availability: 1.4 - requires GEOS >= 3.1.0." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:887 +#, no-c-format +msgid "" +"Availability: 2.0 - requires GEOS >= 3.3.0 for the version taking flags." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:895 +#, no-c-format +msgid "" +"--First 3 Rejects from a successful quintuplet experiment\n" +"SELECT gid, ST_IsValidReason(the_geom) as validity_info\n" +"FROM\n" +"(SELECT ST_MakePolygon(ST_ExteriorRing(e.buff), ST_Accum(f.line)) As " +"the_geom, gid\n" +"FROM (SELECT ST_Buffer(ST_MakePoint(x1*10,y1), z1) As buff, x1*10 + y1*100 + " +"z1*1000 As gid\n" +" FROM generate_series(-4,6) x1\n" +" CROSS JOIN generate_series(2,5) y1\n" +" CROSS JOIN generate_series(1,8) z1\n" +" WHERE x1 > y1*0.5 AND z1 < x1*y1) As e\n" +" INNER JOIN (SELECT ST_Translate(ST_ExteriorRing(ST_Buffer" +"(ST_MakePoint(x1*10,y1), z1)),y1*1, z1*2) As line\n" +" FROM generate_series(-3,6) x1\n" +" CROSS JOIN generate_series(2,5) y1\n" +" CROSS JOIN generate_series(1,10) z1\n" +" WHERE x1 > y1*0.75 AND z1 < x1*y1) As f\n" +"ON (ST_Area(e.buff) > 78 AND ST_Contains(e.buff, f.line))\n" +"GROUP BY gid, e.buff) As quintuplet_experiment\n" +"WHERE ST_IsValid(the_geom) = false\n" +"ORDER BY gid\n" +"LIMIT 3;\n" +"\n" +" gid | validity_info\n" +"------+--------------------------\n" +" 5330 | Self-intersection [32 5]\n" +" 5340 | Self-intersection [42 5]\n" +" 5350 | Self-intersection [52 5]\n" +"\n" +" --simple example\n" +"SELECT ST_IsValidReason('LINESTRING(220227 150406,2220227 150407,222020 " +"150410)');\n" +"\n" +" st_isvalidreason\n" +"------------------\n" +" Valid Geometry" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:902 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:908 +#, no-c-format +msgid "ST_IsValidDetail" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:910 +#, no-c-format +msgid "" +"Returns a valid_detail (valid,reason,location) row stating if a geometry is " +"valid or not and if not valid, a reason why and a location where." +msgstr "" + +#. Tag: funcsynopsis +#: reference_accessor.xml:914 +#, no-c-format +msgid "" +" valid_detail ST_IsValidDetail geometry geom valid_detail " +"ST_IsValidDetail geometry geom integer " +"flags " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:930 +#, no-c-format +msgid "" +"Returns a valid_detail row, formed by a boolean (valid) stating if a " +"geometry is valid, a varchar (reason) stating a reason why it is invalid and " +"a geometry (location) pointing out where it is invalid." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:932 +#, no-c-format +msgid "" +"Useful to substitute and improve the combination of ST_IsValid and " +"ST_IsValidReason to generate a detailed report of invalid geometries." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:934 +#, no-c-format +msgid "The 'flags' argument is a bitfield. It can have the following values:" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:938 +#, no-c-format +msgid "" +"1: Consider self-intersecting rings forming holes as valid. This is also " +"know as \"the ESRI flag\". Note that this is against the OGC model." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:947 +#, no-c-format +msgid "Availability: 2.0.0 - requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:955 +#, no-c-format +msgid "" +"--First 3 Rejects from a successful quintuplet experiment\n" +"SELECT gid, reason(ST_IsValidDetail(the_geom)), ST_AsText(location" +"(ST_IsValidDetail(the_geom))) as location \n" +"FROM\n" +"(SELECT ST_MakePolygon(ST_ExteriorRing(e.buff), ST_Accum(f.line)) As " +"the_geom, gid\n" +"FROM (SELECT ST_Buffer(ST_MakePoint(x1*10,y1), z1) As buff, x1*10 + y1*100 + " +"z1*1000 As gid\n" +" FROM generate_series(-4,6) x1\n" +" CROSS JOIN generate_series(2,5) y1\n" +" CROSS JOIN generate_series(1,8) z1\n" +" WHERE x1 > y1*0.5 AND z1 < x1*y1) As e\n" +" INNER JOIN (SELECT ST_Translate(ST_ExteriorRing(ST_Buffer" +"(ST_MakePoint(x1*10,y1), z1)),y1*1, z1*2) As line\n" +" FROM generate_series(-3,6) x1\n" +" CROSS JOIN generate_series(2,5) y1\n" +" CROSS JOIN generate_series(1,10) z1\n" +" WHERE x1 > y1*0.75 AND z1 < x1*y1) As f\n" +"ON (ST_Area(e.buff) > 78 AND ST_Contains(e.buff, f.line))\n" +"GROUP BY gid, e.buff) As quintuplet_experiment\n" +"WHERE ST_IsValid(the_geom) = false\n" +"ORDER BY gid\n" +"LIMIT 3;\n" +"\n" +" gid | reason | location\n" +"------+-------------------+-------------\n" +" 5330 | Self-intersection | POINT(32 5)\n" +" 5340 | Self-intersection | POINT(42 5)\n" +" 5350 | Self-intersection | POINT(52 5)\n" +"\n" +" --simple example\n" +"SELECT * FROM ST_IsValidDetail('LINESTRING(220227 150406,2220227 " +"150407,222020 150410)');\n" +"\n" +" valid | reason | location\n" +"-------+--------+----------\n" +" t | |" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:962 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:971 +#, no-c-format +msgid "ST_M" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:973 +#, no-c-format +msgid "" +"Return the M coordinate of the point, or NULL if not available. " +"Input must be a point." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:979 +#, no-c-format +msgid "" +"float ST_M geometry " +" a_point" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:989 +#, no-c-format +msgid "" +"Return the M coordinate of the point, or NULL if not available. Input " +"must be a point." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:993 +#, no-c-format +msgid "" +"This is not (yet) part of the OGC spec, but is listed here to complete the " +"point coordinate extractor function list." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:997 reference_accessor.xml:1892 +#, no-c-format +msgid "&sqlmm_compliant;" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1005 +#, no-c-format +msgid "" +"SELECT ST_M(ST_GeomFromEWKT('POINT(1 2 3 4)'));\n" +" st_m\n" +"------\n" +" 4\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1012 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1018 +#, no-c-format +msgid "ST_NDims" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1019 +#, no-c-format +msgid "" +"Returns coordinate dimension of the geometry as a small int. Values are: 2,3 " +"or 4." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1025 +#, no-c-format +msgid "" +"integer ST_NDims " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1035 +#, no-c-format +msgid "" +"Returns the coordinate dimension of the geometry. PostGIS supports 2 - (x," +"y) , 3 - (x,y,z) or 2D with measure - x,y,m, and 4 - 3D with measure space x," +"y,z,m" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1044 +#, no-c-format +msgid "" +"SELECT ST_NDims(ST_GeomFromText('POINT(1 1)')) As d2point,\n" +" ST_NDims(ST_GeomFromEWKT('POINT(1 1 2)')) As d3point,\n" +" ST_NDims(ST_GeomFromEWKT('POINTM(1 1 0.5)')) As d2pointm;\n" +"\n" +" d2point | d3point | d2pointm\n" +"---------+---------+----------\n" +" 2 | 3 | 3" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1048 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1054 +#, no-c-format +msgid "ST_NPoints" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1055 +#, no-c-format +msgid "Return the number of points (vertexes) in a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1060 +#, no-c-format +msgid "" +"integer ST_NPoints " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1070 +#, no-c-format +msgid "Return the number of points in a geometry. Works for all geometries." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1072 +#, no-c-format +msgid "" +"Prior to 1.3.4, this function crashes if used with geometries that contain " +"CURVES. This is fixed in 1.3.4+" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1082 +#, no-c-format +msgid "" +"SELECT ST_NPoints(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 29.26,77.27 " +"29.31,77.29 29.07)'));\n" +"--result\n" +"4\n" +"\n" +"--Polygon in 3D space\n" +"SELECT ST_NPoints(ST_GeomFromEWKT('LINESTRING(77.29 29.07 1,77.42 29.26 " +"0,77.27 29.31 -1,77.29 29.07 3)'))\n" +"--result\n" +"4" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1093 +#, no-c-format +msgid "ST_NRings" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1094 +#, no-c-format +msgid "" +"If the geometry is a polygon or multi-polygon returns the number of rings." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1099 +#, no-c-format +msgid "" +"integer ST_NRings " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1109 +#, no-c-format +msgid "" +"If the geometry is a polygon or multi-polygon returns the number of rings. " +"Unlike NumInteriorRings, it counts the outer rings as well." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1119 +#, no-c-format +msgid "" +"SELECT ST_NRings(the_geom) As Nrings, ST_NumInteriorRings(the_geom) As " +"ninterrings\n" +" FROM (SELECT ST_GeomFromText('POLYGON" +"((1 2, 3 4, 5 6, 1 2))') As the_geom) As foo;\n" +" nrings | ninterrings\n" +"--------+-------------\n" +" 1 | 0\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1132 +#, no-c-format +msgid "ST_NumGeometries" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1133 +#, no-c-format +msgid "" +"If geometry is a GEOMETRYCOLLECTION (or MULTI*) return the number of " +"geometries, for single geometries will return 1, otherwise return NULL." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1139 +#, no-c-format +msgid "" +"integer ST_NumGeometries " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1149 +#, no-c-format +msgid "" +"Returns the number of Geometries. If geometry is a GEOMETRYCOLLECTION (or " +"MULTI*) return the number of geometries, for single geometries will return " +"1, otherwise return NULL." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1153 +#, no-c-format +msgid "" +"Changed: 2.0.0 In prior versions this would return NULL if the geometry was " +"not a collection/MULTI type. 2.0.0+ now returns 1 for single geometries e.g " +"POLYGON, LINESTRING, POINT." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1155 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 9.1.4" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1165 +#, no-c-format +msgid "" +"--Prior versions would have returned NULL for this -- in 2.0.0 this returns " +"1\n" +"SELECT ST_NumGeometries(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 " +"29.26,77.27 29.31,77.29 29.07)'));\n" +"--result\n" +"1\n" +"\n" +"--Geometry Collection Example - multis count as one geom in a collection\n" +"SELECT ST_NumGeometries(ST_GeomFromEWKT('GEOMETRYCOLLECTION(MULTIPOINT(-2 " +"3 , -2 2),\n" +"LINESTRING(5 5 ,10 10),\n" +"POLYGON((-7 4.2,-7.1 5,-7.1 4.3,-7 4.2)))'));\n" +"--result\n" +"3" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1170 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1176 +#, no-c-format +msgid "ST_NumInteriorRings" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1177 +#, no-c-format +msgid "" +"Return the number of interior rings of the first polygon in the " +"geometry. This will work with both POLYGON and MULTIPOLYGON types but only " +"looks at the first polygon. Return NULL if there is no polygon in the " +"geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1185 +#, no-c-format +msgid "" +"integer ST_NumInteriorRings " +"geometry a_polygon" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1195 +#, no-c-format +msgid "" +"Return the number of interior rings of the first polygon in the " +"geometry. This will work with both POLYGON and MULTIPOLYGON types but only " +"looks at the first polygon. Return NULL if there is no polygon in the " +"geometry." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1200 reference_accessor.xml:1239 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.2.5" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1206 +#, no-c-format +msgid "" +"--If you have a regular polygon\n" +"SELECT gid, field1, field2, ST_NumInteriorRings(the_geom) AS numholes\n" +"FROM sometable;\n" +"\n" +"--If you have multipolygons\n" +"--And you want to know the total number of interior rings in the " +"MULTIPOLYGON\n" +"SELECT gid, field1, field2, SUM(ST_NumInteriorRings(the_geom)) AS numholes\n" +"FROM (SELECT gid, field1, field2, (ST_Dump(the_geom)).geom As the_geom\n" +" FROM sometable) As foo\n" +"GROUP BY gid, field1,field2;" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1217 +#, no-c-format +msgid "ST_NumInteriorRing" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1218 +#, no-c-format +msgid "" +"Return the number of interior rings of the first polygon in the geometry. " +"Synonym to ST_NumInteriorRings." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1224 +#, no-c-format +msgid "" +"integer ST_NumInteriorRing " +"geometry a_polygon" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1234 +#, no-c-format +msgid "" +"Return the number of interior rings of the first polygon in the geometry. " +"Synonym to ST_NumInteriorRings. The OpenGIS specs are ambiguous about the " +"exact function naming, so we provide both spellings." +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1251 +#, no-c-format +msgid "ST_NumPatches" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1252 +#, no-c-format +msgid "" +"Return the number of faces on a Polyhedral Surface. Will return null for non-" +"polyhedral geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1257 +#, no-c-format +msgid "" +"integer ST_NumPatches " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1267 +#, no-c-format +msgid "" +"Return the number of faces on a Polyhedral Surface. Will return null for non-" +"polyhedral geometries. This is an alias for ST_NumGeometries to support MM " +"naming. Faster to use ST_NumGeometries if you don't care about MM convention." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1270 reference_accessor.xml:1365 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1273 reference_accessor.xml:1366 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: ?" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1280 +#, no-c-format +msgid "" +"SELECT ST_NumPatches(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 " +"1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 " +"1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 " +"1, 0 1 1, 0 0 1)) )'));\n" +" --result\n" +" 6" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1291 +#, no-c-format +msgid "ST_NumPoints" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1292 +#, no-c-format +msgid "" +"Return the number of points in an ST_LineString or ST_CircularString value." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1298 +#, no-c-format +msgid "" +"integer ST_NumPoints " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1308 +#, no-c-format +msgid "" +"Return the number of points in an ST_LineString or ST_CircularString value. " +"Prior to 1.4 only works with Linestrings as the specs state. From 1.4 " +"forward this is an alias for ST_NPoints which returns number of vertexes for " +"not just line strings. Consider using ST_NPoints instead which is multi-" +"purpose and works with many geometry types." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1315 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.2.4" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1321 +#, no-c-format +msgid "" +"SELECT ST_NumPoints(ST_GeomFromText('LINESTRING(77.29 29.07,77.42 " +"29.26,77.27 29.31,77.29 29.07)'));\n" +" --result\n" +" 4" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1332 +#, no-c-format +msgid "ST_PatchN" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1334 +#, no-c-format +msgid "" +"Return the 1-based Nth geometry (face) if the geometry is a " +"POLYHEDRALSURFACE, POLYHEDRALSURFACEM. Otherwise, return NULL." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1341 +#, no-c-format +msgid "" +"geometry ST_PatchN " +"geometry geomA " +"integer n" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1352 +#, no-c-format +msgid "" +">Return the 1-based Nth geometry (face) if the geometry is a " +"POLYHEDRALSURFACE, POLYHEDRALSURFACEM. Otherwise, return NULL. This returns " +"the same answer as ST_GeometryN for Polyhedral Surfaces. Using ST_GemoetryN " +"is faster." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1358 +#, no-c-format +msgid "Index is 1-based." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1362 +#, no-c-format +msgid "" +"If you want to extract all geometries, of a geometry, ST_Dump is more " +"efficient." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1376 +#, no-c-format +msgid "" +"--Extract the 2nd face of the polyhedral surface\n" +"SELECT ST_AsEWKT(ST_PatchN(geom, 2)) As geomewkt\n" +"FROM (\n" +"VALUES (ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 " +"0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, " +"0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, " +"0 0 1)) )')) ) As foo(geom);\n" +"\n" +" geomewkt\n" +"---+-----------------------------------------\n" +" POLYGON((0 0 0,0 1 0,1 1 0,1 0 0,0 0 0))" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1383 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1389 +#, no-c-format +msgid "ST_PointN" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1391 +#, no-c-format +msgid "" +"Return the Nth point in the first linestring or circular " +"linestring in the geometry. Return NULL if there is no linestring in the " +"geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1398 +#, no-c-format +msgid "" +"geometry ST_PointN " +"geometry a_linestring integer n" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1409 +#, no-c-format +msgid "" +"Return the Nth point in the first linestring or circular linestring in " +"the geometry. Return NULL if there is no linestring in the geometry." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1419 +#, no-c-format +msgid "" +"If you want to get the nth point of each line string in a multilinestring, " +"use in conjunction with ST_Dump" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1424 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.2.5, 7.3.5" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1434 +#, no-c-format +msgid "" +"-- Extract all POINTs from a LINESTRING\n" +"SELECT ST_AsText(\n" +" ST_PointN(\n" +" column1,\n" +" generate_series(1, ST_NPoints(column1))\n" +" ))\n" +"FROM ( VALUES ('LINESTRING(0 0, 1 1, 2 2)'::geometry) ) AS foo;\n" +"\n" +" st_astext\n" +"------------\n" +" POINT(0 0)\n" +" POINT(1 1)\n" +" POINT(2 2)\n" +"(3 rows)\n" +"\n" +"--Example circular string\n" +"SELECT ST_AsText(ST_PointN(ST_GeomFromText('CIRCULARSTRING(1 2, 3 2, 1 " +"2)'),2));\n" +"\n" +"st_astext\n" +"----------\n" +"POINT(3 2)" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1446 +#, no-c-format +msgid "ST_SRID" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1447 +#, no-c-format +msgid "" +"Returns the spatial reference identifier for the ST_Geometry as defined in " +"spatial_ref_sys table." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1452 +#, no-c-format +msgid "" +"integer ST_SRID " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1462 +#, no-c-format +msgid "" +"Returns the spatial reference identifier for the ST_Geometry as defined in " +"spatial_ref_sys table. " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1463 +#, no-c-format +msgid "" +"spatial_ref_sys table is a table that catalogs all spatial reference systems " +"known to PostGIS and is used for transformations from one spatial reference " +"system to another. So verifying you have the right spatial reference system " +"identifier is important if you plan to ever transform your geometries." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1467 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.5" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1475 +#, no-c-format +msgid "" +"SELECT ST_SRID(ST_GeomFromText('POINT(-71.1043 42.315)',4326));\n" +" --result\n" +" 4326" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1480 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1486 +#, no-c-format +msgid "ST_StartPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1488 +#, no-c-format +msgid "" +"Returns the first point of a LINESTRING geometry as a " +"POINT." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1494 +#, no-c-format +msgid "" +"geometry ST_StartPoint " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1505 +#, no-c-format +msgid "" +"Returns the first point of a LINESTRING geometry as a " +"POINT or NULL if the input parameter " +"is not a LINESTRING." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1509 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.3" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1522 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_StartPoint('LINESTRING(0 1, 0 2)'::geometry));\n" +" st_astext\n" +"------------\n" +" POINT(0 1)\n" +"(1 row)\n" +"\n" +"SELECT ST_StartPoint('POINT(0 1)'::geometry) IS NULL AS is_null;\n" +" is_null\n" +"----------\n" +" t\n" +"(1 row)\n" +"\n" +"--3d line\n" +"SELECT ST_AsEWKT(ST_StartPoint('LINESTRING(0 1 1, 0 2 2)'::geometry));\n" +" st_asewkt\n" +"------------\n" +" POINT(0 1 1)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1528 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1533 +#, no-c-format +msgid "ST_Summary" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1535 +#, no-c-format +msgid "" +"Returns a text summary of the contents of the geometry." +msgstr "" + +#. Tag: funcsynopsis +#: reference_accessor.xml:1541 +#, no-c-format +msgid "" +" text ST_Summary " +"geometry g text ST_Summary geography g " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1556 +#, no-c-format +msgid "Returns a text summary of the contents of the geometry." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1558 +#, no-c-format +msgid "" +"Flags shown square brackets after the geometry type have the following " +"meaning:" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1562 +#, no-c-format +msgid "M: has M ordinate" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1563 +#, no-c-format +msgid "Z: has Z ordinate" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1564 +#, no-c-format +msgid "B: has a cached bounding box" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1565 +#, no-c-format +msgid "G: is geodetic (geography)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1569 +#, no-c-format +msgid "Availability: 1.2.2 - 2.0.0 added support for geography" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1576 +#, no-c-format +msgid "" +"=# SELECT ST_Summary(ST_GeomFromText('LINESTRING(0 0, 1 1)')) as geom,\n" +" ST_Summary(ST_GeogFromText('POLYGON((0 0, 1 1, 1 2, 1 1, 0 0))')) " +"geog;\n" +" geom | geog \n" +"-----------------------------+--------------------------\n" +" LineString[B] with 2 points | Polygon[BG] with 1 rings\n" +" : ring 0 has 5 points\n" +" :\n" +"(1 row)\n" +"\n" +"\n" +"=# SELECT ST_Summary(ST_GeogFromText('LINESTRING(0 0 1, 1 1 1)')) As " +"geog_line,\n" +" ST_Summary(ST_GeomFromText('POLYGON((0 0 1, 1 1 2, 1 2 3, 1 1 1, 0 0 " +"1))')) As geom_poly;\n" +";\n" +" geog_line | geom_poly\n" +"-------------------------------+--------------------------\n" +" LineString[ZBG] with 2 points | Polygon[ZB] with 1 rings\n" +" : ring 0 has 5 points\n" +" :\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1582 +#, no-c-format +msgid "" +", , , " +", , " +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1591 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1602 +#, no-c-format +msgid "ST_X" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1604 +#, no-c-format +msgid "" +"Return the X coordinate of the point, or NULL if not available. " +"Input must be a point." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1610 +#, no-c-format +msgid "" +"float ST_X geometry " +" a_point" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1620 +#, no-c-format +msgid "" +"Return the X coordinate of the point, or NULL if not available. Input " +"must be a point." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1623 +#, no-c-format +msgid "" +"If you want to get the max min x values of any geometry look at ST_XMin, " +"ST_XMax functions." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1625 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 6.1.3" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1633 +#, no-c-format +msgid "" +"SELECT ST_X(ST_GeomFromEWKT('POINT(1 2 3 4)'));\n" +" st_x\n" +"------\n" +" 1\n" +"(1 row)\n" +"\n" +"SELECT ST_Y(ST_Centroid(ST_GeomFromEWKT('LINESTRING(1 2 3 4, 1 1 1 1)')));\n" +" st_y\n" +"------\n" +" 1.5\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1640 +#, no-c-format +msgid "" +", , , , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1646 +#, no-c-format +msgid "ST_XMax" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1648 +#, no-c-format +msgid "" +"Returns X maxima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1653 +#, no-c-format +msgid "" +"float ST_XMax box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1663 +#, no-c-format +msgid "Returns X maxima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1666 reference_accessor.xml:1711 +#: reference_accessor.xml:1799 reference_accessor.xml:1844 +#: reference_accessor.xml:1932 reference_accessor.xml:2019 +#, no-c-format +msgid "" +"Although this function is only defined for box3d, it will work for box2d and " +"geometry because of the auto-casting behavior defined for geometries and " +"box2d. However you can not feed it a geometry or box2d text representation, " +"since that will not auto-cast." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1678 +#, no-c-format +msgid "" +"SELECT ST_XMax('BOX3D(1 2 3, 4 5 6)');\n" +"st_xmax\n" +"-------\n" +"4\n" +"\n" +"SELECT ST_XMax(ST_GeomFromText('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_xmax\n" +"-------\n" +"5\n" +"\n" +"SELECT ST_XMax(CAST('BOX(-3 2, 3 4)' As box2d));\n" +"st_xmax\n" +"-------\n" +"3\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_XMax('LINESTRING(1 3, 5 6)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_XMax(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_xmax\n" +"--------\n" +"220288.248780547" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1685 reference_accessor.xml:1730 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1691 +#, no-c-format +msgid "ST_XMin" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1693 +#, no-c-format +msgid "" +"Returns X minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1698 +#, no-c-format +msgid "" +"float ST_XMin box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1708 +#, no-c-format +msgid "Returns X minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1723 +#, no-c-format +msgid "" +"SELECT ST_XMin('BOX3D(1 2 3, 4 5 6)');\n" +"st_xmin\n" +"-------\n" +"1\n" +"\n" +"SELECT ST_XMin(ST_GeomFromText('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_xmin\n" +"-------\n" +"1\n" +"\n" +"SELECT ST_XMin(CAST('BOX(-3 2, 3 4)' As box2d));\n" +"st_xmin\n" +"-------\n" +"-3\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_XMin('LINESTRING(1 3, 5 6)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_XMin(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_xmin\n" +"--------\n" +"220186.995121892" +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1736 +#, no-c-format +msgid "ST_Y" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1738 +#, no-c-format +msgid "" +"Return the Y coordinate of the point, or NULL if not available. " +"Input must be a point." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1744 +#, no-c-format +msgid "" +"float ST_Y geometry " +" a_point" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1754 +#, no-c-format +msgid "" +"Return the Y coordinate of the point, or NULL if not available. Input " +"must be a point." +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1758 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 6.1.4" +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1766 +#, no-c-format +msgid "" +"SELECT ST_Y(ST_GeomFromEWKT('POINT(1 2 3 4)'));\n" +" st_y\n" +"------\n" +" 2\n" +"(1 row)\n" +"\n" +"SELECT ST_Y(ST_Centroid(ST_GeomFromEWKT('LINESTRING(1 2 3 4, 1 1 1 1)')));\n" +" st_y\n" +"------\n" +" 1.5\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1773 +#, no-c-format +msgid "" +", , , , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1779 +#, no-c-format +msgid "ST_YMax" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1781 +#, no-c-format +msgid "" +"Returns Y maxima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1786 +#, no-c-format +msgid "" +"float ST_YMax box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1796 +#, no-c-format +msgid "Returns Y maxima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1811 +#, no-c-format +msgid "" +"SELECT ST_YMax('BOX3D(1 2 3, 4 5 6)');\n" +"st_ymax\n" +"-------\n" +"5\n" +"\n" +"SELECT ST_YMax(ST_GeomFromText('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_ymax\n" +"-------\n" +"6\n" +"\n" +"SELECT ST_YMax(CAST('BOX(-3 2, 3 4)' As box2d));\n" +"st_ymax\n" +"-------\n" +"4\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_YMax('LINESTRING(1 3, 5 6)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_YMax(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_ymax\n" +"--------\n" +"150506.126829327" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1818 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1824 +#, no-c-format +msgid "ST_YMin" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1826 +#, no-c-format +msgid "" +"Returns Y minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1831 +#, no-c-format +msgid "" +"float ST_YMin box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1841 +#, no-c-format +msgid "Returns Y minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1856 +#, no-c-format +msgid "" +"SELECT ST_YMin('BOX3D(1 2 3, 4 5 6)');\n" +"st_ymin\n" +"-------\n" +"2\n" +"\n" +"SELECT ST_YMin(ST_GeomFromText('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_ymin\n" +"-------\n" +"3\n" +"\n" +"SELECT ST_YMin(CAST('BOX(-3 2, 3 4)' As box2d));\n" +"st_ymin\n" +"-------\n" +"2\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_YMin('LINESTRING(1 3, 5 6)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_YMin(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_ymin\n" +"--------\n" +"150406" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1863 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1869 +#, no-c-format +msgid "ST_Z" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1871 +#, no-c-format +msgid "" +"Return the Z coordinate of the point, or NULL if not available. " +"Input must be a point." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1877 +#, no-c-format +msgid "" +"float ST_Z geometry " +" a_point" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1887 +#, no-c-format +msgid "" +"Return the Z coordinate of the point, or NULL if not available. Input " +"must be a point." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1899 +#, no-c-format +msgid "" +"SELECT ST_Z(ST_GeomFromEWKT('POINT(1 2 3 4)'));\n" +" st_z\n" +"------\n" +" 3\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1906 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1912 +#, no-c-format +msgid "ST_ZMax" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1914 reference_accessor.xml:2001 +#, no-c-format +msgid "" +"Returns Z minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1919 +#, no-c-format +msgid "" +"float ST_ZMax box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1929 +#, no-c-format +msgid "Returns Z maxima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1944 +#, no-c-format +msgid "" +"SELECT ST_ZMax('BOX3D(1 2 3, 4 5 6)');\n" +"st_zmax\n" +"-------\n" +"6\n" +"\n" +"SELECT ST_ZMax(ST_GeomFromEWKT('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_zmax\n" +"-------\n" +"7\n" +"\n" +"SELECT ST_ZMax('BOX3D(-3 2 1, 3 4 1)' );\n" +"st_zmax\n" +"-------\n" +"1\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_ZMax('LINESTRING(1 3 4, 5 6 7)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_ZMax(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_zmax\n" +"--------\n" +"3" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1951 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1957 +#, no-c-format +msgid "ST_Zmflag" +msgstr "" + +#. Tag: refpurpose +#: reference_accessor.xml:1959 +#, no-c-format +msgid "" +"Returns ZM (dimension semantic) flag of the geometries as a " +"small int. Values are: 0=2d, 1=3dm, 2=3dz, 3=4d." +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:1965 +#, no-c-format +msgid "" +"smallint ST_Zmflag " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1975 +#, no-c-format +msgid "" +"Returns ZM (dimension semantic) flag of the geometries as a small int. " +"Values are: 0=2d, 1=3dm, 2=3dz, 3=4d." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:1986 +#, no-c-format +msgid "" +"SELECT ST_Zmflag(ST_GeomFromEWKT('LINESTRING(1 2, 3 4)'));\n" +" st_zmflag\n" +"-----------\n" +" 0\n" +"\n" +"SELECT ST_Zmflag(ST_GeomFromEWKT('LINESTRINGM(1 2 3, 3 4 3)'));\n" +" st_zmflag\n" +"-----------\n" +" 1\n" +"\n" +"SELECT ST_Zmflag(ST_GeomFromEWKT('CIRCULARSTRING(1 2 3, 3 4 3, 5 6 3)'));\n" +" st_zmflag\n" +"-----------\n" +" 2\n" +"SELECT ST_Zmflag(ST_GeomFromEWKT('POINT(1 2 3 4)'));\n" +" st_zmflag\n" +"-----------\n" +" 3" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:1993 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_accessor.xml:1999 +#, no-c-format +msgid "ST_ZMin" +msgstr "" + +#. Tag: funcprototype +#: reference_accessor.xml:2006 +#, no-c-format +msgid "" +"float ST_ZMin box3d " +" aGeomorBox2DorBox3D" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:2016 +#, no-c-format +msgid "Returns Z minima of a bounding box 2d or 3d or a geometry." +msgstr "" + +#. Tag: programlisting +#: reference_accessor.xml:2031 +#, no-c-format +msgid "" +"SELECT ST_ZMin('BOX3D(1 2 3, 4 5 6)');\n" +"st_zmin\n" +"-------\n" +"3\n" +"\n" +"SELECT ST_ZMin(ST_GeomFromEWKT('LINESTRING(1 3 4, 5 6 7)'));\n" +"st_zmin\n" +"-------\n" +"4\n" +"\n" +"SELECT ST_ZMin('BOX3D(-3 2 1, 3 4 1)' );\n" +"st_zmin\n" +"-------\n" +"1\n" +"--Observe THIS DOES NOT WORK because it will try to autocast the string " +"representation to a BOX3D\n" +"SELECT ST_ZMin('LINESTRING(1 3 4, 5 6 7)');\n" +"\n" +"--ERROR: BOX3D parser - doesnt start with BOX3D(\n" +"\n" +"SELECT ST_ZMin(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)'));\n" +"st_zmin\n" +"--------\n" +"1" +msgstr "" + +#. Tag: para +#: reference_accessor.xml:2038 +#, no-c-format +msgid "" +", , , , , , " +msgstr "" diff --git a/doc/po/it_IT/reference_constructor.xml.po b/doc/po/it_IT/reference_constructor.xml.po new file mode 100644 index 000000000..90b6563d4 --- /dev/null +++ b/doc/po/it_IT/reference_constructor.xml.po @@ -0,0 +1,2934 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_constructor.xml:3 +#, no-c-format +msgid "Geometry Constructors" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:6 +#, no-c-format +msgid "ST_BdPolyFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:8 +#, no-c-format +msgid "" +"Construct a Polygon given an arbitrary collection of closed " +"linestrings as a MultiLineString Well-Known text representation." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:14 +#, no-c-format +msgid "" +"geometry ST_BdPolyFromText " +"text WKT " +"integer srid" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:23 reference_constructor.xml:72 +#: reference_constructor.xml:119 reference_constructor.xml:148 +#: reference_constructor.xml:175 reference_constructor.xml:227 +#: reference_constructor.xml:278 reference_constructor.xml:326 +#: reference_constructor.xml:369 reference_constructor.xml:400 +#: reference_constructor.xml:474 reference_constructor.xml:513 +#: reference_constructor.xml:564 reference_constructor.xml:596 +#: reference_constructor.xml:649 reference_constructor.xml:695 +#: reference_constructor.xml:740 reference_constructor.xml:799 +#: reference_constructor.xml:867 reference_constructor.xml:927 +#: reference_constructor.xml:966 reference_constructor.xml:1023 +#: reference_constructor.xml:1094 reference_constructor.xml:1139 +#: reference_constructor.xml:1220 reference_constructor.xml:1263 +#: reference_constructor.xml:1305 reference_constructor.xml:1366 +#: reference_constructor.xml:1427 reference_constructor.xml:1481 +#: reference_constructor.xml:1535 reference_constructor.xml:1591 +#: reference_constructor.xml:1640 reference_constructor.xml:1694 +#: reference_constructor.xml:1737 reference_constructor.xml:1760 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:25 +#, no-c-format +msgid "" +"Construct a Polygon given an arbitrary collection of closed " +"linestrings as a MultiLineString Well-Known text representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:30 +#, no-c-format +msgid "" +"Throws an error if WKT is not a MULTILINESTRING. Throws an error if output " +"is a MULTIPOLYGON; use ST_BdMPolyFromText in that case, or see ST_BuildArea" +"() for a postgis-specific approach." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:36 reference_constructor.xml:88 +#: reference_constructor.xml:241 reference_constructor.xml:756 +#: reference_constructor.xml:824 reference_constructor.xml:890 +#: reference_constructor.xml:1321 reference_constructor.xml:1443 +#: reference_constructor.xml:1705 +#, no-c-format +msgid "&sfs_compliant; s3.2.6.2" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:38 reference_constructor.xml:90 +#, no-c-format +msgid "Availability: 1.1.0 - requires GEOS >= 2.1.0." +msgstr "" + +#. Tag: title +#: reference_constructor.xml:42 reference_constructor.xml:94 +#: reference_constructor.xml:125 reference_constructor.xml:190 +#: reference_constructor.xml:248 reference_constructor.xml:292 +#: reference_constructor.xml:340 reference_constructor.xml:485 +#: reference_constructor.xml:617 reference_constructor.xml:665 +#: reference_constructor.xml:703 reference_constructor.xml:763 +#: reference_constructor.xml:831 reference_constructor.xml:895 +#: reference_constructor.xml:935 reference_constructor.xml:982 +#: reference_constructor.xml:1235 reference_constructor.xml:1270 +#: reference_constructor.xml:1328 reference_constructor.xml:1389 +#: reference_constructor.xml:1450 reference_constructor.xml:1559 +#: reference_constructor.xml:1609 reference_constructor.xml:1658 +#: reference_constructor.xml:1710 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:44 reference_constructor.xml:96 +#, no-c-format +msgid "Forthcoming" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:48 reference_constructor.xml:100 +#: reference_constructor.xml:129 reference_constructor.xml:153 +#: reference_constructor.xml:195 reference_constructor.xml:255 +#: reference_constructor.xml:305 reference_constructor.xml:346 +#: reference_constructor.xml:374 reference_constructor.xml:453 +#: reference_constructor.xml:492 reference_constructor.xml:540 +#: reference_constructor.xml:571 reference_constructor.xml:621 +#: reference_constructor.xml:672 reference_constructor.xml:710 +#: reference_constructor.xml:770 reference_constructor.xml:838 +#: reference_constructor.xml:902 reference_constructor.xml:942 +#: reference_constructor.xml:989 reference_constructor.xml:1066 +#: reference_constructor.xml:1109 reference_constructor.xml:1173 +#: reference_constructor.xml:1239 reference_constructor.xml:1276 +#: reference_constructor.xml:1335 reference_constructor.xml:1396 +#: reference_constructor.xml:1457 reference_constructor.xml:1508 +#: reference_constructor.xml:1563 reference_constructor.xml:1616 +#: reference_constructor.xml:1665 reference_constructor.xml:1717 +#: reference_constructor.xml:1741 reference_constructor.xml:1764 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:49 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:55 +#, no-c-format +msgid "ST_BdMPolyFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:56 +#, no-c-format +msgid "" +"Construct a MultiPolygon given an arbitrary collection of closed linestrings " +"as a MultiLineString text representation Well-Known text representation." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:63 +#, no-c-format +msgid "" +"geometry ST_BdMPolyFromText " +"text WKT " +"integer srid" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:74 +#, no-c-format +msgid "" +"Construct a Polygon given an arbitrary collection of closed linestrings, " +"polygons, MultiLineStrings as Well-Known text representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:79 +#, no-c-format +msgid "" +"Throws an error if WKT is not a MULTILINESTRING. Forces MULTIPOLYGON output " +"even when result is really only composed by a single POLYGON; use ST_BdPolyFromText if you're sure a " +"single POLYGON will result from operation, or see ST_BuildArea() for a postgis-specific approach." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:101 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:107 +#, no-c-format +msgid "ST_GeogFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:108 reference_constructor.xml:137 +#, no-c-format +msgid "" +"Return a specified geography value from Well-Known Text representation or " +"extended (WKT)." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:112 +#, no-c-format +msgid "" +"geography ST_GeogFromText " +"text EWKT" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:120 +#, no-c-format +msgid "" +"Returns a geography object from the well-known text or extended well-known " +"representation. SRID 4326 is assumed. This is an alias for " +"ST_GeographyFromText. Points are always expressed in long lat form." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:126 +#, no-c-format +msgid "" +"--- converting lon lat coords to geography\n" +"ALTER TABLE sometable ADD COLUMN geog geography(POINT,4326);\n" +"UPDATE sometable SET geog = ST_GeogFromText('SRID=4326;POINT(' || lon || ' ' " +"|| lat || ')');" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:130 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:136 +#, no-c-format +msgid "ST_GeographyFromText" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:141 +#, no-c-format +msgid "" +"geography ST_GeographyFromText " +"text EWKT" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:149 +#, no-c-format +msgid "" +"Returns a geography object from the well-known text representation. SRID " +"4326 is assumed." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:154 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:160 +#, no-c-format +msgid "ST_GeogFromWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:161 +#, no-c-format +msgid "" +"Creates a geography instance from a Well-Known Binary geometry " +"representation (WKB) or extended Well Known Binary (EWKB)." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:167 +#, no-c-format +msgid "" +"geography ST_GeogFromWKB " +"bytea geom" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:177 +#, no-c-format +msgid "" +"The ST_GeogFromWKB function, takes a well-known binary " +"representation (WKB) of a geometry or PostGIS Extended WKB and creates an " +"instance of the appropriate geography type. This function plays the role of " +"the Geometry Factory in SQL." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:182 +#, no-c-format +msgid "If SRID is not specified, it defaults to 4326 (WGS 84 long lat)." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:184 reference_constructor.xml:286 +#: reference_constructor.xml:334 reference_constructor.xml:610 +#: reference_constructor.xml:660 reference_constructor.xml:1605 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:192 +#, no-c-format +msgid "" +"--Although bytea rep contains single \\, these need to be escaped when " +"inserting into a table\n" +"SELECT ST_AsText(\n" +"ST_GeogFromWKB(E'\\\\001\\\\002\\\\000\\\\000\\\\000\\\\002\\\\000\\\\000\\" +"\\000\\\\037\\\\205\\\\353Q\\\\270~\\\\\\\\\\\\300\\\\323Mb\\\\020X\\\\231C@" +"\\\\020X9\\\\264\\\\310~\\\\\\\\\\\\300)\\\\\\\\\\\\217\\\\302\\\\365\\" +"\\230C@')\n" +");\n" +" st_astext\n" +"------------------------------------------------------\n" +" LINESTRING(-113.98 39.198,-113.981 39.195)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:197 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:204 +#, no-c-format +msgid "ST_GeomCollFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:206 +#, no-c-format +msgid "" +"Makes a collection Geometry from collection WKT with the given SRID. If SRID " +"is not give, it defaults to -1." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:211 +#, no-c-format +msgid "" +" geometry ST_GeomCollFromText text WKT " +"integer srid geometry " +"ST_GeomCollFromText text WKT " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:229 +#, no-c-format +msgid "" +"Makes a collection Geometry from the Well-Known-Text (WKT) representation " +"with the given SRID. If SRID is not give, it defaults to -1." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:232 reference_constructor.xml:1310 +#: reference_constructor.xml:1371 reference_constructor.xml:1432 +#: reference_constructor.xml:1700 +#, no-c-format +msgid "OGC SPEC 3.2.6.2 - option SRID is from the conformance suite" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:234 +#, no-c-format +msgid "Returns null if the WKT is not a GEOMETRYCOLLECTION" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:236 +#, no-c-format +msgid "" +"If you are absolutely sure all your WKT geometries are collections, don't " +"use this function. It is slower than ST_GeomFromText since it adds an " +"additional validation step." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:242 +#, no-c-format +msgid "&sqlmm_compliant;" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:250 +#, no-c-format +msgid "" +"SELECT ST_GeomCollFromText('GEOMETRYCOLLECTION(POINT(1 2),LINESTRING(1 2, 3 " +"4))');" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:257 reference_constructor.xml:1459 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:264 +#, no-c-format +msgid "ST_GeomFromEWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:265 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from Extended Well-Known Binary " +"representation (EWKB)." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:270 +#, no-c-format +msgid "" +"geometry ST_GeomFromEWKB " +"bytea EWKB" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:279 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry object from the OGC Extended Well-Known " +"binary (EWKT) representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:281 +#, no-c-format +msgid "" +"The EWKB format is not an OGC standard, but a PostGIS specific format that " +"includes the spatial reference system (SRID) identifier" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:284 reference_constructor.xml:332 +#: reference_constructor.xml:420 reference_constructor.xml:567 +#, no-c-format +msgid "Enhanced: 2.0.0 support for Polyhedral surfaces and TIN was introduced." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:285 reference_constructor.xml:333 +#: reference_constructor.xml:422 reference_constructor.xml:481 +#: reference_constructor.xml:527 reference_constructor.xml:698 +#: reference_constructor.xml:1034 reference_constructor.xml:1151 +#: reference_constructor.xml:1230 reference_constructor.xml:1604 +#: reference_constructor.xml:1652 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:287 reference_constructor.xml:335 +#: reference_constructor.xml:423 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:288 reference_constructor.xml:336 +#: reference_constructor.xml:424 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:293 +#, no-c-format +msgid "" +"line string binary rep 0f LINESTRING(-71.160281 42.258729,-71.160837 " +"42.259113,-71.161144 42.25932) in NAD 83 long lat (4269)." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:295 +#, no-c-format +msgid "" +"NOTE: Even though byte arrays are delimited with \\ and may have ', we need " +"to escape both out with \\ and '' if standard_conforming_strings is off. So " +"it does not look exactly like its AsEWKB representation." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:297 +#, no-c-format +msgid "" +"SELECT ST_GeomFromEWKB(E'\\\\001\\\\002\\\\000\\\\000 \\\\255\\\\020\\\\000\\" +"\\000\\\\003\\\\000\\\\000\\\\000\\\\344J=\n" +"\\\\013B\\\\312Q\\\\300n\\\\303(\\\\010\\\\036!E@''\\\\277E''K\n" +"\\\\312Q\\\\300\\\\366{b\\\\235*!E@\\\\225|\\\\354.P\\\\312Q\n" +"\\\\300p\\\\231\\\\323e1!E@');" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:299 +#, no-c-format +msgid "" +"In PostgreSQL 9.1+ - standard_conforming_strings is set to on by default, " +"where as in past versions it was set to on. You can change defaults as " +"needed for a single query or at the database or server level. Below is how " +"you would do it with standard_conforming_strings = on. In this case we " +"escape the ' with standard ansi ', but slashes are not escaped" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:302 +#, no-c-format +msgid "" +"set standard_conforming_strings = on;\n" +"SELECT ST_GeomFromEWKB('\\001\\002\\000\\000 " +"\\255\\020\\000\\000\\003\\000\\000\\000\\344J=\\012\\013B\n" +" \\312Q\\300n\\303(\\010\\036!E@''\\277E''K\\012\\312Q\\300\\366{b\\235*!" +"E@\\225|\\354.P\\312Q\\012\\300p\\231\\323e1')" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:306 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:312 +#, no-c-format +msgid "ST_GeomFromEWKT" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:313 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from Extended Well-Known Text " +"representation (EWKT)." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:318 +#, no-c-format +msgid "" +"geometry ST_GeomFromEWKT " +"text EWKT" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:327 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry object from the OGC Extended Well-Known " +"text (EWKT) representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:329 +#, no-c-format +msgid "" +"The EWKT format is not an OGC standard, but an PostGIS specific format that " +"includes the spatial reference system (SRID) identifier" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:341 +#, no-c-format +msgid "" +"SELECT ST_GeomFromEWKT('SRID=4269;LINESTRING(-71.160281 42.258729,-71.160837 " +"42.259113,-71.161144 42.25932)');\n" +"SELECT ST_GeomFromEWKT('SRID=4269;MULTILINESTRING((-71.160281 " +"42.258729,-71.160837 42.259113,-71.161144 42.25932))');\n" +"\n" +"SELECT ST_GeomFromEWKT('SRID=4269;POINT(-71.064544 42.28787)');\n" +"\n" +"SELECT ST_GeomFromEWKT('SRID=4269;POLYGON((-71.1776585052917 " +"42.3902909739571,-71.1776820268866 42.3903701743239,\n" +"-71.1776063012595 42.3903825660754,-71.1775826583081 " +"42.3903033653531,-71.1776585052917 42.3902909739571))');\n" +"\n" +"SELECT ST_GeomFromEWKT('SRID=4269;MULTIPOLYGON(((-71.1031880899493 " +"42.3152774590236,\n" +"-71.1031627617667 42.3152960829043,-71.102923838298 42.3149156848307,\n" +"-71.1023097974109 42.3151969047397,-71.1019285062273 42.3147384934248,\n" +"-71.102505233663 42.3144722937587,-71.10277487471 42.3141658254797,\n" +"-71.103113945163 42.3142739188902,-71.10324876416 42.31402489987,\n" +"-71.1033002961013 42.3140393340215,-71.1033488797549 42.3139495090772,\n" +"-71.103396240451 42.3138632439557,-71.1041521907712 42.3141153348029,\n" +"-71.1041411411543 42.3141545014533,-71.1041287795912 42.3142114839058,\n" +"-71.1041188134329 42.3142693656241,-71.1041112482575 42.3143272556118,\n" +"-71.1041072845732 42.3143851580048,-71.1041057218871 42.3144430686681,\n" +"-71.1041065602059 42.3145009876017,-71.1041097995362 42.3145589148055,\n" +"-71.1041166403905 42.3146168544148,-71.1041258822717 42.3146748022936,\n" +"-71.1041375307579 42.3147318674446,-71.1041492906949 42.3147711126569,\n" +"-71.1041598612795 42.314808571739,-71.1042515013869 42.3151287620809,\n" +"-71.1041173835118 42.3150739481917,-71.1040809891419 42.3151344119048,\n" +"-71.1040438678912 42.3151191367447,-71.1040194562988 42.3151832057859,\n" +"-71.1038734225584 42.3151140942995,-71.1038446938243 42.3151006300338,\n" +"-71.1038315271889 42.315094347535,-71.1037393329282 42.315054824985,\n" +"-71.1035447555574 42.3152608696313,-71.1033436658644 42.3151648370544,\n" +"-71.1032580383161 42.3152269126061,-71.103223066939 42.3152517403219,\n" +"-71.1031880899493 42.3152774590236)),\n" +"((-71.1043632495873 42.315113108546,-71.1043583974082 42.3151211109857,\n" +"-71.1043443253471 42.3150676015829,-71.1043850704575 " +"42.3150793250568,-71.1043632495873 42.315113108546)))');" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:342 +#, no-c-format +msgid "" +"--3d circular string\n" +"SELECT ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 150505 " +"2,220227 150406 3)');" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:343 +#, no-c-format +msgid "" +"--Polyhedral Surface example\n" +"SELECT ST_GeomFromEWKT('POLYHEDRALSURFACE( \n" +" ((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)), \n" +" ((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), \n" +" ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 0)), \n" +" ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +" ((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), \n" +" ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 1)) \n" +")');" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:347 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:352 +#, no-c-format +msgid "ST_GeometryFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:353 reference_constructor.xml:1749 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from Well-Known Text representation " +"(WKT). This is an alias name for ST_GeomFromText" +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:356 +#, no-c-format +msgid "" +" geometry ST_GeometryFromText text WKT " +" geometry " +"ST_GeometryFromText text WKT integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:370 reference_constructor.xml:1650 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:371 reference_constructor.xml:609 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.40" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:381 +#, no-c-format +msgid "ST_GeomFromGML" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:382 +#, no-c-format +msgid "" +"Takes as input GML representation of geometry and outputs a PostGIS geometry " +"object" +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:386 +#, no-c-format +msgid "" +" geometry ST_GeomFromGML text geomgml geometry " +"ST_GeomFromGML text " +"geomgml integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:401 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry object from the OGC GML representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:402 +#, no-c-format +msgid "" +"ST_GeomFromGML works only for GML Geometry fragments. It throws an error if " +"you try to use it on a whole GML document." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:403 +#, no-c-format +msgid "" +"OGC GML versions supported: GML 3.2.1 " +"Namespace GML 3.1.1 Simple Features " +"profile SF-2 (with GML 3.1.0 and 3.0.0 backward compatibility) GML 2.1.2 OGC " +"GML standards, cf: http://www.opengeospatial.org/standards/gml:" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:419 reference_constructor.xml:566 +#, no-c-format +msgid "Availability: 1.5, requires libxml2 1.6+" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:421 reference_constructor.xml:568 +#, no-c-format +msgid "Enhanced: 2.0.0 default srid optional parameter added." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:425 +#, no-c-format +msgid "" +"GML allow mixed dimensions (2D and 3D inside the same MultiGeometry for " +"instance). As PostGIS geometries don't, ST_GeomFromGML convert the whole " +"geometry to 2D if a missing Z dimension is found once." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:427 +#, no-c-format +msgid "" +"GML support mixed SRS inside the same MultiGeometry. As PostGIS geometries " +"don't, ST_GeomFromGML, in this case, reproject all subgeometries to the SRS " +"root node. If no srsName attribute available for the GML root node, the " +"function throw an error." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:429 +#, no-c-format +msgid "" +"ST_GeomFromGML function is not pedantic about an explicit GML namespace. You " +"could avoid to mention it explicitly for common usages. But you need it if " +"you want to use XLink feature inside GML." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:431 +#, no-c-format +msgid "ST_GeomFromGML function not support SQL/MM curves geometries." +msgstr "" + +#. Tag: title +#: reference_constructor.xml:437 reference_constructor.xml:535 +#, no-c-format +msgid "Examples - A single geometry with srsName" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:438 +#, no-c-format +msgid "" +"SELECT ST_GeomFromGML('\n" +" \n" +" -71.16028,42.258729 -71.160837,42.259112 " +"-71.161143,42.25932\n" +" \n" +" ']]>);" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:442 +#, no-c-format +msgid "Examples - XLink usage" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:443 +#, no-c-format +msgid "" +"SELECT \n" +" \n" +" 42.258729 " +"-71.16028\n" +" \n" +" 42.259112 -71.160837\n" +" \n" +" \n" +" \n" +" ');]]>);" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:447 +#, no-c-format +msgid "Examples - Polyhedral Surface" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:448 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(\n" +"\n" +" \n" +" \n" +" 0 0 0 0 0 1 0 1 1 0 1 " +"0 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" 0 0 0 0 1 0 1 1 " +"0 1 0 0 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" 0 0 0 1 0 0 1 0 " +"1 0 0 1 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" 1 1 0 1 1 1 1 0 " +"1 1 0 0 1 1 0\n" +" \n" +" \n" +" \n" +" \n" +" 0 1 0 0 1 1 1 1 " +"1 1 1 0 0 1 0\n" +" \n" +" \n" +" \n" +" \n" +" 0 0 1 1 0 1 1 1 " +"1 0 1 1 0 0 1\n" +" \n" +" \n" +"\n" +"']]>));\n" +"\n" +"-- result --\n" +" POLYHEDRALSURFACE(((0 0 0,0 0 1,0 1 1,0 1 0,0 0 0)),\n" +" ((0 0 0,0 1 0,1 1 0,1 0 0,0 0 0)),\n" +" ((0 0 0,1 0 0,1 0 1,0 0 1,0 0 0)),\n" +" ((1 1 0,1 1 1,1 0 1,1 0 0,1 1 0)),\n" +" ((0 1 0,0 1 1,1 1 1,1 1 0,0 1 0)),\n" +" ((0 0 1,1 0 1,1 1 1,0 1 1,0 0 1)))" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:454 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:460 +#, no-c-format +msgid "ST_GeomFromGeoJSON" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:461 +#, no-c-format +msgid "" +"Takes as input a geojson representation of a geometry and outputs a PostGIS " +"geometry object" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:466 +#, no-c-format +msgid "" +"geometry ST_GeomFromGeoJSON " +"text geomjson" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:475 +#, no-c-format +msgid "Constructs a PostGIS geometry object from the GeoJSON representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:476 +#, no-c-format +msgid "" +"ST_GeomFromGeoJSON works only for JSON Geometry fragments. It throws an " +"error if you try to use it on a whole JSON document." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:478 +#, no-c-format +msgid "Availability: 2.0.0 requires - JSON-C >= 0.9" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:479 +#, no-c-format +msgid "" +"If you do not have JSON-C enabled, support you will get an error notice " +"instead of seeing an output. To enable JSON-C, run configure --with-jsondir=/" +"path/to/json-c. See for " +"details." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:486 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_GeomFromGeoJSON('{\"type\":\"Point\",\"coordinates\":" +"[-48.23456,20.12345]}')) As wkt;\n" +"wkt\n" +"------\n" +"POINT(-48.23456 20.12345)" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:487 +#, no-c-format +msgid "" +"-- a 3D linestring\n" +"SELECT ST_AsText(ST_GeomFromGeoJSON('{\"type\":\"LineString\",\"coordinates" +"\":[[1,2,3],[4,5,6],[7,8,9]]}')) As wkt;\n" +"\n" +"wkt\n" +"-------------------\n" +"LINESTRING(1 2,4 5,7 8)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:493 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:499 +#, no-c-format +msgid "ST_GeomFromKML" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:500 +#, no-c-format +msgid "" +"Takes as input KML representation of geometry and outputs a PostGIS geometry " +"object" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:505 +#, no-c-format +msgid "" +"geometry ST_GeomFromKML " +"text geomkml" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:514 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry object from the OGC KML representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:515 +#, no-c-format +msgid "" +"ST_GeomFromKML works only for KML Geometry fragments. It throws an error if " +"you try to use it on a whole KML document." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:516 +#, no-c-format +msgid "" +"OGC KML versions supported: KML 2.2.0 " +"Namespace OGC KML standards, cf: http://www." +"opengeospatial.org/standards/kml:" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:526 +#, no-c-format +msgid "Availability: 1.5,libxml2 2.6+" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:529 +#, no-c-format +msgid "ST_GeomFromKML function not support SQL/MM curves geometries." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:536 +#, no-c-format +msgid "" +"SELECT ST_GeomFromKML('\n" +" -71.1663,42.2614 \n" +" -71.1667,42.2616\n" +" ']]>);" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:541 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:547 +#, no-c-format +msgid "ST_GMLToSQL" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:548 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from GML representation. This is an " +"alias name for ST_GeomFromGML" +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:551 +#, no-c-format +msgid "" +" geometry ST_GMLToSQL " +"text geomgml geometry ST_GMLToSQL text geomgml integer srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:565 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.50 (except for curves support)." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:572 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:578 +#, no-c-format +msgid "ST_GeomFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:579 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from Well-Known Text representation " +"(WKT)." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:582 +#, no-c-format +msgid "" +" geometry ST_GeomFromText text WKT " +" geometry " +"ST_GeomFromText text " +"WKT integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:598 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry object from the OGC Well-Known text " +"representation." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:602 +#, no-c-format +msgid "" +"There are 2 variants of ST_GeomFromText function, the first takes no SRID " +"and returns a geometry with no defined spatial reference system. The second " +"takes a spatial reference id as the second argument and returns an " +"ST_Geometry that includes this srid as part of its meta-data. The srid must " +"be defined in the spatial_ref_sys table." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:608 reference_constructor.xml:1554 +#, no-c-format +msgid "&sfs_compliant; s3.2.6.2 - option SRID is from the conformance suite." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:611 +#, no-c-format +msgid "" +"Changed: 2.0.0 In prior versions of PostGIS ST_GeomFromText" +"('GEOMETRYCOLLECTION(EMPTY)') was allowed. This is now illegal in PostGIS " +"2.0.0 to better conform with SQL/MM standards. This should now be written as " +"ST_GeomFromText('GEOMETRYCOLLECTION EMPTY')" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:618 +#, no-c-format +msgid "" +"SELECT ST_GeomFromText('LINESTRING(-71.160281 42.258729,-71.160837 " +"42.259113,-71.161144 42.25932)');\n" +"SELECT ST_GeomFromText('LINESTRING(-71.160281 42.258729,-71.160837 " +"42.259113,-71.161144 42.25932)',4269);\n" +"\n" +"SELECT ST_GeomFromText('MULTILINESTRING((-71.160281 42.258729,-71.160837 " +"42.259113,-71.161144 42.25932))');\n" +"\n" +"SELECT ST_GeomFromText('POINT(-71.064544 42.28787)');\n" +"\n" +"SELECT ST_GeomFromText('POLYGON((-71.1776585052917 " +"42.3902909739571,-71.1776820268866 42.3903701743239,\n" +"-71.1776063012595 42.3903825660754,-71.1775826583081 " +"42.3903033653531,-71.1776585052917 42.3902909739571))');\n" +"\n" +"SELECT ST_GeomFromText('MULTIPOLYGON(((-71.1031880899493 42.3152774590236,\n" +"-71.1031627617667 42.3152960829043,-71.102923838298 42.3149156848307,\n" +"-71.1023097974109 42.3151969047397,-71.1019285062273 42.3147384934248,\n" +"-71.102505233663 42.3144722937587,-71.10277487471 42.3141658254797,\n" +"-71.103113945163 42.3142739188902,-71.10324876416 42.31402489987,\n" +"-71.1033002961013 42.3140393340215,-71.1033488797549 42.3139495090772,\n" +"-71.103396240451 42.3138632439557,-71.1041521907712 42.3141153348029,\n" +"-71.1041411411543 42.3141545014533,-71.1041287795912 42.3142114839058,\n" +"-71.1041188134329 42.3142693656241,-71.1041112482575 42.3143272556118,\n" +"-71.1041072845732 42.3143851580048,-71.1041057218871 42.3144430686681,\n" +"-71.1041065602059 42.3145009876017,-71.1041097995362 42.3145589148055,\n" +"-71.1041166403905 42.3146168544148,-71.1041258822717 42.3146748022936,\n" +"-71.1041375307579 42.3147318674446,-71.1041492906949 42.3147711126569,\n" +"-71.1041598612795 42.314808571739,-71.1042515013869 42.3151287620809,\n" +"-71.1041173835118 42.3150739481917,-71.1040809891419 42.3151344119048,\n" +"-71.1040438678912 42.3151191367447,-71.1040194562988 42.3151832057859,\n" +"-71.1038734225584 42.3151140942995,-71.1038446938243 42.3151006300338,\n" +"-71.1038315271889 42.315094347535,-71.1037393329282 42.315054824985,\n" +"-71.1035447555574 42.3152608696313,-71.1033436658644 42.3151648370544,\n" +"-71.1032580383161 42.3152269126061,-71.103223066939 42.3152517403219,\n" +"-71.1031880899493 42.3152774590236)),\n" +"((-71.1043632495873 42.315113108546,-71.1043583974082 42.3151211109857,\n" +"-71.1043443253471 42.3150676015829,-71.1043850704575 " +"42.3150793250568,-71.1043632495873 42.315113108546)))',4326);\n" +"\n" +"SELECT ST_GeomFromText('CIRCULARSTRING(220268 150415,220227 150505,220227 " +"150406)');" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:622 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:628 +#, no-c-format +msgid "ST_GeomFromWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:629 +#, no-c-format +msgid "" +"Creates a geometry instance from a Well-Known Binary geometry representation " +"(WKB) and optional SRID." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:634 reference_constructor.xml:1576 +#, no-c-format +msgid "" +" geometry ST_GeomFromWKB bytea geom geometry " +"ST_GeomFromWKB bytea " +"geom integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:651 +#, no-c-format +msgid "" +"The ST_GeomFromWKB function, takes a well-known binary " +"representation of a geometry and a Spatial Reference System ID " +"(SRID) and creates an instance of the appropriate " +"geometry type. This function plays the role of the Geometry Factory in SQL. " +"This is an alternate name for ST_WKBToSQL." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:657 +#, no-c-format +msgid "If SRID is not specified, it defaults to -1 (Unknown)." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:658 +#, no-c-format +msgid "" +"&sfs_compliant; s3.2.7.2 - the optional SRID is from the conformance suite" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:659 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.41" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:667 +#, no-c-format +msgid "" +"--Although bytea rep contains single \\, these need to be escaped when " +"inserting into a table \n" +" -- unless standard_conforming_strings is set to on.\n" +"SELECT ST_AsEWKT(\n" +"ST_GeomFromWKB(E'\\\\001\\\\002\\\\000\\\\000\\\\000\\\\002\\\\000\\\\000\\" +"\\000\\\\037\\\\205\\\\353Q\\\\270~\\\\\\\\\\\\300\\\\323Mb\\\\020X\\\\231C@" +"\\\\020X9\\\\264\\\\310~\\\\\\\\\\\\300)\\\\\\\\\\\\217\\\\302\\\\365\\" +"\\230C@',4326)\n" +");\n" +" st_asewkt\n" +"------------------------------------------------------\n" +" SRID=4326;LINESTRING(-113.98 39.198,-113.981 39.195)\n" +"(1 row)\n" +"\n" +"SELECT\n" +" ST_AsText(\n" +" ST_GeomFromWKB(\n" +" ST_AsEWKB('POINT(2 5)'::geometry)\n" +" )\n" +" );\n" +" st_astext\n" +"------------\n" +" POINT(2 5)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:674 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:680 +#, no-c-format +msgid "ST_LineFromMultiPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:682 +#, no-c-format +msgid "" +"Creates a LineString from a MultiPoint geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:687 +#, no-c-format +msgid "" +"geometry ST_LineFromMultiPoint " +"geometry aMultiPoint" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:697 +#, no-c-format +msgid "Creates a LineString from a MultiPoint geometry." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:705 +#, no-c-format +msgid "" +"--Create a 3d line string from a 3d multipoint\n" +"SELECT ST_AsEWKT(ST_LineFromMultiPoint(ST_GeomFromEWKT('MULTIPOINT(1 2 3, 4 " +"5 6, 7 8 9)')));\n" +"--result--\n" +"LINESTRING(1 2 3,4 5 6,7 8 9)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:712 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:718 +#, no-c-format +msgid "ST_LineFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:720 +#, no-c-format +msgid "" +"Makes a Geometry from WKT representation with the given SRID. If SRID is not " +"given, it defaults to -1." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:725 +#, no-c-format +msgid "" +" geometry ST_LineFromText text WKT " +" geometry " +"ST_LineFromText text " +"WKT integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:742 +#, no-c-format +msgid "" +"Makes a Geometry from WKT with the given SRID. If SRID is not give, it " +"defaults to -1. If WKT passed in is not a LINESTRING, then null is returned." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:746 reference_constructor.xml:812 +#, no-c-format +msgid "OGC SPEC 3.2.6.2 - option SRID is from the conformance suite." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:751 +#, no-c-format +msgid "" +"If you know all your geometries are LINESTRINGS, its more efficient to just " +"use ST_GeomFromText. This just calls ST_GeomFromText and adds additional " +"validation that it returns a linestring." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:757 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.2.8" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:765 +#, no-c-format +msgid "" +"SELECT ST_LineFromText('LINESTRING(1 2, 3 4)') AS aline, ST_LineFromText" +"('POINT(1 2)') AS null_return;\n" +"aline | null_return\n" +"------------------------------------------------\n" +"010200000002000000000000000000F ... | t" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:778 +#, no-c-format +msgid "ST_LineFromWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:780 +#, no-c-format +msgid "Makes a LINESTRING from WKB with the given SRID" +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:784 +#, no-c-format +msgid "" +" geometry ST_LineFromWKB bytea WKB " +" geometry ST_LineFromWKB bytea WKB integer srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:801 +#, no-c-format +msgid "" +"The ST_LineFromWKB function, takes a well-known binary " +"representation of geometry and a Spatial Reference System ID (SRID) and creates an instance of the appropriate geometry type - in this " +"case, a LINESTRING geometry. This function plays the role " +"of the Geometry Factory in SQL." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:807 +#, no-c-format +msgid "" +"If an SRID is not specified, it defaults to -1. NULL is " +"returned if the input bytea does not represent a " +"LINESTRING." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:817 +#, no-c-format +msgid "" +"If you know all your geometries are LINESTRINGs, its more " +"efficient to just use . This function just " +"calls and adds additional validation that " +"it returns a linestring." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:825 reference_constructor.xml:891 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.2.9" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:833 +#, no-c-format +msgid "" +"SELECT ST_LineFromWKB(ST_AsBinary(ST_GeomFromText('LINESTRING(1 2, 3 4)'))) " +"AS aline,\n" +" ST_LineFromWKB(ST_AsBinary(ST_GeomFromText('POINT(1 2)'))) " +"IS NULL AS null_return;\n" +"aline | null_return\n" +"------------------------------------------------\n" +"010200000002000000000000000000F ... | t" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:840 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:846 +#, no-c-format +msgid "ST_LinestringFromWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:848 +#, no-c-format +msgid "Makes a geometry from WKB with the given SRID." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:852 +#, no-c-format +msgid "" +" geometry ST_LinestringFromWKB bytea WKB " +" geometry " +"ST_LinestringFromWKB bytea WKB integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:869 +#, no-c-format +msgid "" +"The ST_LinestringFromWKB function, takes a well-known " +"binary representation of geometry and a Spatial Reference System ID " +"(SRID) and creates an instance of the appropriate " +"geometry type - in this case, a LINESTRING geometry. This " +"function plays the role of the Geometry Factory in SQL." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:875 +#, no-c-format +msgid "" +"If an SRID is not specified, it defaults to -1. NULL is " +"returned if the input bytea does not represent a " +"LINESTRING geometry. This an alias for ." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:880 +#, no-c-format +msgid "OGC SPEC 3.2.6.2 - optional SRID is from the conformance suite." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:884 +#, no-c-format +msgid "" +"If you know all your geometries are LINESTRINGs, it's " +"more efficient to just use . This function " +"just calls and adds additional validation " +"that it returns a LINESTRING." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:897 +#, no-c-format +msgid "" +"SELECT\n" +" ST_LineStringFromWKB(\n" +" ST_AsBinary(ST_GeomFromText('LINESTRING(1 2, 3 4)'))\n" +" ) AS aline,\n" +" ST_LinestringFromWKB(\n" +" ST_AsBinary(ST_GeomFromText('POINT(1 2)'))\n" +" ) IS NULL AS null_return;\n" +" aline | null_return\n" +"------------------------------------------------\n" +"010200000002000000000000000000F ... | t" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:904 reference_constructor.xml:1618 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:910 +#, no-c-format +msgid "ST_MakeBox2D" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:912 +#, no-c-format +msgid "Creates a BOX2D defined by the given point geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:918 +#, no-c-format +msgid "" +"box2d ST_MakeBox2D " +"geometry pointLowLeft geometry pointUpRight" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:929 +#, no-c-format +msgid "" +"Creates a BOX2D defined by the given point geometries. This is useful for " +"doing range queries" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:937 +#, no-c-format +msgid "" +"--Return all features that fall reside or partly reside in a US national " +"atlas coordinate bounding box\n" +"--It is assumed here that the geometries are stored with SRID = 2163 (US " +"National atlas equal area)\n" +"SELECT feature_id, feature_name, the_geom\n" +"FROM features\n" +"WHERE the_geom && ST_SetSRID(ST_MakeBox2D(ST_Point(-989502.1875, " +"528439.5625),\n" +" ST_Point(-987121.375 ,529933.1875)),2163)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:944 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:950 +#, no-c-format +msgid "ST_3DMakeBox" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:952 +#, no-c-format +msgid "Creates a BOX3D defined by the given 3d point geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:957 +#, no-c-format +msgid "" +"box3d ST_3DMakeBox " +"geometry point3DLowLeftBottom geometry " +"point3DUpRightTop" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:968 +#, no-c-format +msgid "Creates a BOX3D defined by the given 2 3D point geometries." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:975 +#, no-c-format +msgid "This function supports 3d and will not drop the z-index." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:977 +#, no-c-format +msgid "Changed: 2.0.0 In prior versions this used to be called ST_MakeBox3D" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:984 +#, no-c-format +msgid "" +"SELECT ST_3DMakeBox(ST_MakePoint(-989502.1875, 528439.5625, 10),\n" +" ST_MakePoint(-987121.375 ,529933.1875, 10)) As abb3d\n" +"\n" +"--bb3d--\n" +"--------\n" +"BOX3D(-989502.1875 528439.5625 10,-987121.375 529933.1875 10)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:991 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:997 +#, no-c-format +msgid "ST_MakeLine" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:999 +#, no-c-format +msgid "Creates a Linestring from point or line geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1003 +#, no-c-format +msgid "" +" geometry ST_MakeLine " +"geometry set geoms " +" geometry ST_MakeLine geometry geom1 geometry geom2 geometry " +"ST_MakeLine geometry[] " +"geoms_array " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1025 +#, no-c-format +msgid "" +"ST_MakeLine comes in 3 forms: a spatial aggregate that takes rows of point-" +"or-line geometries and returns a line string, a function that takes an array " +"of point-or-lines, and a regular function that takes two point-or-line " +"geometries. You might want to use a subselect to order points before feeding " +"them to the aggregate version of this function." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1030 +#, no-c-format +msgid "When adding line components a common node is removed from the output." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1035 +#, no-c-format +msgid "" +"Availability: 1.4.0 - ST_MakeLine(geomarray) was introduced. ST_MakeLine " +"aggregate functions was enhanced to handle more points faster." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1036 +#, no-c-format +msgid "" +"Availability: 2.0.0 - Support for linestring input elements was introduced" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1040 +#, no-c-format +msgid "Examples: Spatial Aggregate version" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1041 +#, no-c-format +msgid "" +"This example takes a sequence of GPS points and creates one record for each " +"gps travel where the geometry field is a line string composed of the gps " +"points in the order of the travel." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1045 +#, no-c-format +msgid "" +"-- For pre-PostgreSQL 9.0 - this usually works, \n" +"-- but the planner may on occasion choose not to respect the order of the " +"subquery\n" +"SELECT gps.gps_track, ST_MakeLine(gps.the_geom) As newgeom\n" +" FROM (SELECT gps_track,gps_time, the_geom\n" +" FROM gps_points ORDER BY gps_track, gps_time) As " +"gps\n" +" GROUP BY gps.gps_track;" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1047 +#, no-c-format +msgid "" +"-- If you are using PostgreSQL 9.0+ \n" +"-- (you can use the new ORDER BY support for aggregates)\n" +"-- this is a guaranteed way to get a correctly ordered linestring\n" +"-- Your order by part can order by more than one column if needed\n" +"SELECT gps.gps_track, ST_MakeLine(gps.the_geom ORDER BY gps_time) As " +"newgeom\n" +" FROM gps_points As gps\n" +" GROUP BY gps.gps_track;" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1050 +#, no-c-format +msgid "Examples: Non-Spatial Aggregate version" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1052 +#, no-c-format +msgid "" +"First example is a simple one off line string composed of 2 points. The " +"second formulates line strings from 2 points a user draws. The third is a " +"one-off that joins 2 3d points to create a line in 3d space." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1054 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_MakeLine(ST_MakePoint(1,2), ST_MakePoint(3,4)));\n" +" st_astext\n" +"---------------------\n" +" LINESTRING(1 2,3 4)\n" +"\n" +"SELECT userpoints.id, ST_MakeLine(startpoint, endpoint) As drawn_line\n" +" FROM userpoints ;\n" +"\n" +"SELECT ST_AsEWKT(ST_MakeLine(ST_MakePoint(1,2,3), ST_MakePoint(3,4,5)));\n" +" st_asewkt\n" +"-------------------------\n" +" LINESTRING(1 2 3,3 4 5)" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1058 +#, no-c-format +msgid "Examples: Using Array version" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1060 +#, no-c-format +msgid "" +"SELECT ST_MakeLine(ARRAY(SELECT ST_Centroid(the_geom) FROM visit_locations " +"ORDER BY visit_time));\n" +"\n" +"--Making a 3d line with 3 3-d points\n" +"SELECT ST_AsEWKT(ST_MakeLine(ARRAY[ST_MakePoint(1,2,3),\n" +" ST_MakePoint(3,4,5), ST_MakePoint" +"(6,6,6)]));\n" +" st_asewkt\n" +"-------------------------\n" +"LINESTRING(1 2 3,3 4 5,6 6 6)" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1067 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1074 +#, no-c-format +msgid "ST_MakeEnvelope" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1076 +#, no-c-format +msgid "" +"Creates a rectangular Polygon formed from the given minimums and maximums. " +"Input values must be in SRS specified by the SRID." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1082 +#, no-c-format +msgid "" +"geometry ST_MakeEnvelope " +"double precision xmin double precision ymin double precision " +"xmax double precision ymax integer srid=unknown" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1096 +#, no-c-format +msgid "" +"Creates a rectangular Polygon formed from the minima and maxima. by the " +"given shell. Input values must be in SRS specified by the SRID. If no SRID " +"is specified the unknown spatial reference system is assumed" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1099 +#, no-c-format +msgid "Availability: 1.5" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1100 +#, no-c-format +msgid "" +"Enhanced: 2.0: Ability to specify an envelope without specifying an SRID was " +"introduced." +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1105 +#, no-c-format +msgid "Example: Building a bounding box polygon" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1106 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_MakeEnvelope(10, 10, 11, 11, 4326));\n" +"\n" +"st_asewkt\n" +"-----------\n" +"POLYGON((10 10, 10 11, 11 11, 11 10, 10 10))" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1110 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1116 +#, no-c-format +msgid "ST_MakePolygon" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1118 +#, no-c-format +msgid "" +"Creates a Polygon formed by the given shell. Input geometries must be closed " +"LINESTRINGS." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1124 +#, no-c-format +msgid "" +"geometry ST_MakePolygon " +"geometry linestring" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1130 +#, no-c-format +msgid "" +"geometry ST_MakePolygon " +"geometry outerlinestring geometry[] interiorlinestrings" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1141 +#, no-c-format +msgid "" +"Creates a Polygon formed by the given shell. Input geometries must be closed " +"LINESTRINGS. Comes in 2 variants." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1143 +#, no-c-format +msgid "Variant 1: takes one closed linestring." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1144 +#, no-c-format +msgid "" +"Variant 2: Creates a Polygon formed by the given shell and array of holes. " +"You can construct a geometry array using ST_Accum or the PostgreSQL ARRAY[] " +"and ARRAY() constructs. Input geometries must be closed LINESTRINGS." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1148 +#, no-c-format +msgid "" +"This function will not accept a MULTILINESTRING. Use or to generate line strings." +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1155 +#, no-c-format +msgid "Examples: Single closed LINESTRING" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1156 +#, no-c-format +msgid "" +"--2d line\n" +"SELECT ST_MakePolygon(ST_GeomFromText('LINESTRING(75.15 29.53,77 29,77.6 " +"29.5, 75.15 29.53)'));\n" +"--If linestring is not closed\n" +"--you can add the start point to close it\n" +"SELECT ST_MakePolygon(ST_AddPoint(foo.open_line, ST_StartPoint(foo." +"open_line)))\n" +"FROM (\n" +"SELECT ST_GeomFromText('LINESTRING(75.15 29.53,77 29,77.6 29.5)') As " +"open_line) As foo;\n" +"\n" +"--3d closed line\n" +"SELECT ST_MakePolygon(ST_GeomFromText('LINESTRING(75.15 29.53 1,77 29 1,77.6 " +"29.5 1, 75.15 29.53 1)'));\n" +"\n" +"st_asewkt\n" +"-----------\n" +"POLYGON((75.15 29.53 1,77 29 1,77.6 29.5 1,75.15 29.53 1))\n" +"\n" +"--measured line --\n" +"SELECT ST_MakePolygon(ST_GeomFromText('LINESTRINGM(75.15 29.53 1,77 29 " +"1,77.6 29.5 2, 75.15 29.53 2)'));\n" +"\n" +"st_asewkt\n" +"----------\n" +"POLYGONM((75.15 29.53 1,77 29 1,77.6 29.5 2,75.15 29.53 2))" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1159 +#, no-c-format +msgid "Examples: Outter shell with inner shells" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1161 +#, no-c-format +msgid "Build a donut with an ant hole" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1162 +#, no-c-format +msgid "" +"SELECT ST_MakePolygon(\n" +" ST_ExteriorRing(ST_Buffer(foo.line,10)),\n" +" ARRAY[ST_Translate(foo.line,1,1),\n" +" ST_ExteriorRing(ST_Buffer(ST_MakePoint(20,20),1)) ]\n" +" )\n" +"FROM\n" +" (SELECT ST_ExteriorRing(ST_Buffer(ST_MakePoint(10,10),10,10))\n" +" As line )\n" +" As foo;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1163 +#, no-c-format +msgid "" +"Build province boundaries with holes representing lakes in the province from " +"a set of province polygons/multipolygons and water line strings this is an " +"example of using PostGIS ST_Accum" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1167 +#, no-c-format +msgid "" +"The use of CASE because feeding a null array into ST_MakePolygon results in " +"NULL" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1169 +#, no-c-format +msgid "" +"the use of left join to guarantee we get all provinces back even if they " +"have no lakes" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1170 +#, no-c-format +msgid "" +"SELECT p.gid, p.province_name,\n" +" CASE WHEN\n" +" ST_Accum(w.the_geom) IS NULL THEN p.the_geom\n" +" ELSE ST_MakePolygon(ST_LineMerge(ST_Boundary(p.the_geom)), " +"ST_Accum(w.the_geom)) END\n" +" FROM\n" +" provinces p LEFT JOIN waterlines w\n" +" ON (ST_Within(w.the_geom, p.the_geom) AND ST_IsClosed" +"(w.the_geom))\n" +" GROUP BY p.gid, p.province_name, p.the_geom;\n" +"\n" +" --Same example above but utilizing a correlated subquery\n" +" --and PostgreSQL built-in ARRAY() function that converts a row set " +"to an array\n" +"\n" +" SELECT p.gid, p.province_name, CASE WHEN\n" +" EXISTS(SELECT w.the_geom\n" +" FROM waterlines w\n" +" WHERE ST_Within(w.the_geom, p.the_geom)\n" +" AND ST_IsClosed(w.the_geom))\n" +" THEN\n" +" ST_MakePolygon(ST_LineMerge(ST_Boundary(p.the_geom)),\n" +" ARRAY(SELECT w.the_geom\n" +" FROM waterlines w\n" +" WHERE ST_Within(w.the_geom, p.the_geom)\n" +" AND ST_IsClosed(w.the_geom)))\n" +" ELSE p.the_geom END As the_geom\n" +" FROM\n" +" provinces p;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1174 +#, no-c-format +msgid "" +", , , " +", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1187 +#, no-c-format +msgid "ST_MakePoint" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1189 +#, no-c-format +msgid "Creates a 2D,3DZ or 4D point geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1194 +#, no-c-format +msgid "" +"geometry ST_MakePoint " +"double precision x " +"double precision y" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1201 +#, no-c-format +msgid "" +"geometry ST_MakePoint " +"double precision x " +"double precision y " +"double precision z" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1209 +#, no-c-format +msgid "" +"geometry ST_MakePoint " +"double precision x " +"double precision y " +"double precision z " +"double precision m" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1222 +#, no-c-format +msgid "" +"Creates a 2D,3DZ or 4D point geometry (geometry with measure). " +"ST_MakePoint while not being OGC compliant is generally " +"faster and more precise than and . It is also easier to use if you have raw " +"coordinates rather than WKT." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1228 +#, no-c-format +msgid "Note x is longitude and y is latitude" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1229 +#, no-c-format +msgid "" +"Use if you need to make a point with x,y,m." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1236 +#, no-c-format +msgid "" +"--Return point with unknown SRID\n" +"SELECT ST_MakePoint(-71.1043443253471, 42.3150676015829);\n" +"\n" +"--Return point marked as WGS 84 long lat\n" +"SELECT ST_SetSRID(ST_MakePoint(-71.1043443253471, 42.3150676015829),4326);\n" +"\n" +"--Return a 3D point (e.g. has altitude)\n" +"SELECT ST_MakePoint(1, 2,1.5);\n" +"\n" +"--Get z of point\n" +"SELECT ST_Z(ST_MakePoint(1, 2,1.5));\n" +"result\n" +"-------\n" +"1.5" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1240 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1246 +#, no-c-format +msgid "ST_MakePointM" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1248 +#, no-c-format +msgid "Creates a point geometry with an x y and m coordinate." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1253 +#, no-c-format +msgid "" +"geometry ST_MakePointM " +"float x " +"float y " +"float m" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1265 +#, no-c-format +msgid "Creates a point with x, y and measure coordinates." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1266 +#, no-c-format +msgid "Note x is longitude and y is latitude." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1271 +#, no-c-format +msgid "" +"We use ST_AsEWKT in these examples to show the text representation instead " +"of ST_AsText because ST_AsText does not support returning M." +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1273 +#, no-c-format +msgid "" +"--Return EWKT representation of point with unknown SRID\n" +"SELECT ST_AsEWKT(ST_MakePointM(-71.1043443253471, 42.3150676015829, 10));\n" +"\n" +"--result\n" +" st_asewkt\n" +"-----------------------------------------------\n" +" POINTM(-71.1043443253471 42.3150676015829 10)\n" +"\n" +"--Return EWKT representation of point with measure marked as WGS 84 long " +"lat\n" +"SELECT ST_AsEWKT(ST_SetSRID(ST_MakePointM(-71.1043443253471, " +"42.3150676015829,10),4326));\n" +"\n" +" st_asewkt\n" +"---------------------------------------------------------\n" +"SRID=4326;POINTM(-71.1043443253471 42.3150676015829 10)\n" +"\n" +"--Return a 3d point (e.g. has altitude)\n" +"SELECT ST_MakePoint(1, 2,1.5);\n" +"\n" +"--Get m of point\n" +"SELECT ST_M(ST_MakePointM(-71.1043443253471, 42.3150676015829,10));\n" +"result\n" +"-------\n" +"10" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1277 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1283 +#, no-c-format +msgid "ST_MLineFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1285 +#, no-c-format +msgid "Return a specified ST_MultiLineString value from WKT representation." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1289 +#, no-c-format +msgid "" +" geometry ST_MLineFromText text WKT " +"integer srid geometry ST_MLineFromText text WKT " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1307 +#, no-c-format +msgid "" +"Makes a Geometry from Well-Known-Text (WKT) with the given SRID. If SRID is " +"not give, it defaults to -1." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1313 +#, no-c-format +msgid "Returns null if the WKT is not a MULTILINESTRING" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1316 reference_constructor.xml:1377 +#, no-c-format +msgid "" +"If you are absolutely sure all your WKT geometries are points, don't use " +"this function. It is slower than ST_GeomFromText since it adds an additional " +"validation step." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1322 +#, no-c-format +msgid "&sqlmm_compliant;SQL-MM 3: 9.4.4" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1330 +#, no-c-format +msgid "SELECT ST_MLineFromText('MULTILINESTRING((1 2, 3 4), (4 5, 6 7))');" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1343 +#, no-c-format +msgid "ST_MPointFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1345 reference_constructor.xml:1675 +#, no-c-format +msgid "" +"Makes a Geometry from WKT with the given SRID. If SRID is not " +"give, it defaults to -1." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1350 +#, no-c-format +msgid "" +" geometry ST_MPointFromText text WKT " +"integer srid geometry " +"ST_MPointFromText text WKT " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1368 +#, no-c-format +msgid "" +"Makes a Geometry from WKT with the given SRID. If SRID is not give, it " +"defaults to -1." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1374 +#, no-c-format +msgid "Returns null if the WKT is not a MULTIPOINT" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1382 +#, no-c-format +msgid "&sfs_compliant; 3.2.6.2" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1383 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 9.2.4" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1391 +#, no-c-format +msgid "" +"SELECT ST_MPointFromText('MULTIPOINT(1 2, 3 4)');\n" +"SELECT ST_MPointFromText('MULTIPOINT(-70.9590 42.1180, -70.9611 42.1223)', " +"4326);" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1404 +#, no-c-format +msgid "ST_MPolyFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1406 +#, no-c-format +msgid "" +"Makes a MultiPolygon Geometry from WKT with the given SRID. If SRID is not " +"give, it defaults to -1." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1411 +#, no-c-format +msgid "" +" geometry ST_MPolyFromText text WKT " +"integer srid geometry ST_MPolyFromText text WKT " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1429 +#, no-c-format +msgid "" +"Makes a MultiPolygon from WKT with the given SRID. If SRID is not give, it " +"defaults to -1." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1435 +#, no-c-format +msgid "Throws an error if the WKT is not a MULTIPOLYGON" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1438 +#, no-c-format +msgid "" +"If you are absolutely sure all your WKT geometries are multipolygons, don't " +"use this function. It is slower than ST_GeomFromText since it adds an " +"additional validation step." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1444 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 9.6.4" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1452 +#, no-c-format +msgid "" +"SELECT ST_MPolyFromText('MULTIPOLYGON(((0 0 1,20 0 1,20 20 1,0 20 1,0 0 1)," +"(5 5 3,5 7 3,7 7 3,7 5 3,5 5 3)))');\n" +"SELECt ST_MPolyFromText('MULTIPOLYGON(((-70.916 42.1002,-70.9468 " +"42.0946,-70.9765 42.0872,-70.9754 42.0875,-70.9749 42.0879,-70.9752 " +"42.0881,-70.9754 42.0891,-70.9758 42.0894,-70.9759 42.0897,-70.9759 " +"42.0899,-70.9754 42.0902,-70.9756 42.0906,-70.9753 42.0907,-70.9753 " +"42.0917,-70.9757 42.0924,-70.9755 42.0928,-70.9755 42.0942,-70.9751 " +"42.0948,-70.9755 42.0953,-70.9751 42.0958,-70.9751 42.0962,-70.9759 " +"42.0983,-70.9767 42.0987,-70.9768 42.0991,-70.9771 42.0997,-70.9771 " +"42.1003,-70.9768 42.1005,-70.977 42.1011,-70.9766 42.1019,-70.9768 " +"42.1026,-70.9769 42.1033,-70.9775 42.1042,-70.9773 42.1043,-70.9776 " +"42.1043,-70.9778 42.1048,-70.9773 42.1058,-70.9774 42.1061,-70.9779 " +"42.1065,-70.9782 42.1078,-70.9788 42.1085,-70.9798 42.1087,-70.9806 " +"42.109,-70.9807 42.1093,-70.9806 42.1099,-70.9809 42.1109,-70.9808 " +"42.1112,-70.9798 42.1116,-70.9792 42.1127,-70.979 42.1129,-70.9787 " +"42.1134,-70.979 42.1139,-70.9791 42.1141,-70.9987 42.1116,-71.0022 42.1273,\n" +" -70.9408 42.1513,-70.9315 42.1165,-70.916 42.1002)))',4326);" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1465 +#, no-c-format +msgid "ST_Point" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1467 +#, no-c-format +msgid "" +"Returns an ST_Point with the given coordinate values. OGC alias for " +"ST_MakePoint." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1472 +#, no-c-format +msgid "" +"geometry ST_Point " +"float x_lon " +"float y_lat" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1483 +#, no-c-format +msgid "" +"Returns an ST_Point with the given coordinate values. MM compliant alias for " +"ST_MakePoint that takes just an x and y." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1486 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 6.1.2" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1492 +#, no-c-format +msgid "Examples: Geometry" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1494 +#, no-c-format +msgid "SELECT ST_SetSRID(ST_Point(-71.1043443253471, 42.3150676015829),4326)" +msgstr "" + +#. Tag: title +#: reference_constructor.xml:1498 +#, no-c-format +msgid "Examples: Geography" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1500 +#, no-c-format +msgid "" +"SELECT CAST(ST_SetSRID(ST_Point(-71.1043443253471, 42.3150676015829),4326) " +"As geography);" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1501 +#, no-c-format +msgid "" +"-- the :: is PostgreSQL short-hand for casting.\n" +"SELECT ST_SetSRID(ST_Point(-71.1043443253471, 42.3150676015829),4326)::" +"geography;" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1503 +#, no-c-format +msgid "" +"--If your point coordinates are in a different spatial reference from WGS-84 " +"long lat, then you need to transform before casting\n" +"-- This example we convert a point in Pennsylvania State Plane feet to WGS " +"84 and then geography\n" +"SELECT ST_Transform(ST_SetSRID(ST_Point(3637510, 3014852),2273),4326)::" +"geography;" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1510 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1516 +#, no-c-format +msgid "ST_PointFromText" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1517 +#, no-c-format +msgid "" +"Makes a point Geometry from WKT with the given SRID. If SRID is not given, " +"it defaults to unknown." +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1521 +#, no-c-format +msgid "" +" geometry ST_PointFromText text WKT " +" geometry " +"ST_PointFromText text " +"WKT integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1537 +#, no-c-format +msgid "" +"Constructs a PostGIS ST_Geometry point object from the OGC Well-Known text " +"representation. If SRID is not give, it defaults to unknown (currently -1). " +"If geometry is not a WKT point representation, returns null. If completely " +"invalid WKT, then throws an error." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1543 +#, no-c-format +msgid "" +"There are 2 variants of ST_PointFromText function, the first takes no SRID " +"and returns a geometry with no defined spatial reference system. The second " +"takes a spatial reference id as the second argument and returns an " +"ST_Geometry that includes this srid as part of its meta-data. The srid must " +"be defined in the spatial_ref_sys table." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1550 +#, no-c-format +msgid "" +"If you are absolutely sure all your WKT geometries are points, don't use " +"this function. It is slower than ST_GeomFromText since it adds an additional " +"validation step. If you are building points from long lat coordinates and " +"care more about performance and accuracy than OGC compliance, use or OGC compliant alias ." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1555 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 6.1.8" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1560 +#, no-c-format +msgid "" +"SELECT ST_PointFromText('POINT(-71.064544 42.28787)');\n" +"SELECT ST_PointFromText('POINT(-71.064544 42.28787)', 4326);" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1564 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1570 +#, no-c-format +msgid "ST_PointFromWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1572 +#, no-c-format +msgid "Makes a geometry from WKB with the given SRID" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1593 +#, no-c-format +msgid "" +"The ST_PointFromWKB function, takes a well-known binary " +"representation of geometry and a Spatial Reference System ID (SRID) and creates an instance of the appropriate geometry type - in this " +"case, a POINT geometry. This function plays the role of " +"the Geometry Factory in SQL." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1599 +#, no-c-format +msgid "" +"If an SRID is not specified, it defaults to -1. NULL is " +"returned if the input bytea does not represent a " +"POINT geometry." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1602 +#, no-c-format +msgid "&sfs_compliant; s3.2.7.2" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1603 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 6.1.9" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1611 +#, no-c-format +msgid "" +"SELECT\n" +" ST_AsText(\n" +" ST_PointFromWKB(\n" +" ST_AsEWKB('POINT(2 5)'::geometry)\n" +" )\n" +" );\n" +" st_astext\n" +"------------\n" +" POINT(2 5)\n" +"(1 row)\n" +"\n" +"SELECT\n" +" ST_AsText(\n" +" ST_PointFromWKB(\n" +" ST_AsEWKB('LINESTRING(2 5, 2 6)'::geometry)\n" +" )\n" +" );\n" +" st_astext\n" +"-----------\n" +"\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1624 +#, no-c-format +msgid "ST_Polygon" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1626 +#, no-c-format +msgid "" +"Returns a polygon built from the specified linestring and SRID." +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1631 +#, no-c-format +msgid "" +"geometry ST_Polygon " +"geometry aLineString integer srid" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1642 +#, no-c-format +msgid "" +"Returns a polygon built from the specified linestring and SRID." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1646 +#, no-c-format +msgid "" +"ST_Polygon is similar to first version oST_MakePolygon except it also sets " +"the spatial ref sys (SRID) of the polygon. Will not work with " +"MULTILINESTRINGS so use LineMerge to merge multilines. Also does not create " +"polygons with holes. Use ST_MakePolygon for that." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1651 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.3.2" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1660 +#, no-c-format +msgid "" +"--a 2d polygon\n" +"SELECT ST_Polygon(ST_GeomFromText('LINESTRING(75.15 29.53,77 29,77.6 29.5, " +"75.15 29.53)'), 4326);\n" +"\n" +"--result--\n" +"POLYGON((75.15 29.53,77 29,77.6 29.5,75.15 29.53))\n" +"--a 3d polygon\n" +"SELECT ST_AsEWKT(ST_Polygon(ST_GeomFromEWKT('LINESTRING(75.15 29.53 1,77 29 " +"1,77.6 29.5 1, 75.15 29.53 1)'), 4326));\n" +"\n" +"result\n" +"------\n" +"SRID=4326;POLYGON((75.15 29.53 1,77 29 1,77.6 29.5 1,75.15 29.53 1))" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1667 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1673 +#, no-c-format +msgid "ST_PolygonFromText" +msgstr "" + +#. Tag: funcsynopsis +#: reference_constructor.xml:1680 +#, no-c-format +msgid "" +" geometry ST_PolygonFromText text WKT " +" geometry " +"ST_PolygonFromText text WKT integer " +"srid " +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1696 +#, no-c-format +msgid "" +"Makes a Geometry from WKT with the given SRID. If SRID is not give, it " +"defaults to -1. Returns null if WKT is not a polygon." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1703 +#, no-c-format +msgid "" +"If you are absolutely sure all your WKT geometries are polygons, don't use " +"this function. It is slower than ST_GeomFromText since it adds an additional " +"validation step." +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1706 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.3.6" +msgstr "" + +#. Tag: programlisting +#: reference_constructor.xml:1712 +#, no-c-format +msgid "" +"SELECT ST_PolygonFromText('POLYGON((-71.1776585052917 " +"42.3902909739571,-71.1776820268866 42.3903701743239,\n" +"-71.1776063012595 42.3903825660754,-71.1775826583081 " +"42.3903033653531,-71.1776585052917 42.3902909739571))');\n" +"st_polygonfromtext\n" +"------------------\n" +"010300000001000000050000006...\n" +"\n" +"\n" +"SELECT ST_PolygonFromText('POINT(1 2)') IS NULL as point_is_notpoly;\n" +"\n" +"point_is_not_poly\n" +"----------\n" +"t" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1725 +#, no-c-format +msgid "ST_WKBToSQL" +msgstr "" + +#. Tag: refpurpose +#: reference_constructor.xml:1726 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from Well-Known Binary representation " +"(WKB). This is an alias name for ST_GeomFromWKB that takes no srid" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1730 +#, no-c-format +msgid "" +"geometry ST_WKBToSQL " +"bytea WKB" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1738 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.36" +msgstr "" + +#. Tag: refname +#: reference_constructor.xml:1748 +#, no-c-format +msgid "ST_WKTToSQL" +msgstr "" + +#. Tag: funcprototype +#: reference_constructor.xml:1753 +#, no-c-format +msgid "" +"geometry ST_WKTToSQL " +"text WKT" +msgstr "" + +#. Tag: para +#: reference_constructor.xml:1761 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.34" +msgstr "" diff --git a/doc/po/it_IT/reference_editor.xml.po b/doc/po/it_IT/reference_editor.xml.po new file mode 100644 index 000000000..cebc1c09e --- /dev/null +++ b/doc/po/it_IT/reference_editor.xml.po @@ -0,0 +1,2417 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_editor.xml:3 +#, no-c-format +msgid "Geometry Editors" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:7 +#, no-c-format +msgid "ST_AddPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:8 +#, no-c-format +msgid "" +"Adds a point to a LineString before point <position> (0-based index)." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:13 +#, no-c-format +msgid "" +"geometry ST_AddPoint " +"geometry linestring " +"geometry point" +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:20 +#, no-c-format +msgid "" +"geometry ST_AddPoint " +"geometry linestring " +"geometry point " +"integer position" +msgstr "" + +#. Tag: title +#: reference_editor.xml:30 reference_editor.xml:89 reference_editor.xml:148 +#: reference_editor.xml:193 reference_editor.xml:235 reference_editor.xml:277 +#: reference_editor.xml:317 reference_editor.xml:357 reference_editor.xml:407 +#: reference_editor.xml:453 reference_editor.xml:495 reference_editor.xml:543 +#: reference_editor.xml:582 reference_editor.xml:616 reference_editor.xml:649 +#: reference_editor.xml:693 reference_editor.xml:742 reference_editor.xml:789 +#: reference_editor.xml:838 reference_editor.xml:902 reference_editor.xml:962 +#: reference_editor.xml:1004 reference_editor.xml:1047 +#: reference_editor.xml:1124 reference_editor.xml:1202 +#: reference_editor.xml:1338 reference_editor.xml:1421 +#: reference_editor.xml:1475 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_editor.xml:32 +#, no-c-format +msgid "" +"Adds a point to a LineString before point <position> (0-based index). " +"Third parameter can be omitted or set to -1 for appending." +msgstr "" + +#. Tag: para +#: reference_editor.xml:35 reference_editor.xml:460 reference_editor.xml:619 +#: reference_editor.xml:1009 +#, no-c-format +msgid "Availability: 1.1.0" +msgstr "" + +#. Tag: para +#: reference_editor.xml:36 reference_editor.xml:111 reference_editor.xml:158 +#: reference_editor.xml:200 reference_editor.xml:241 reference_editor.xml:321 +#: reference_editor.xml:366 reference_editor.xml:416 reference_editor.xml:620 +#: reference_editor.xml:702 reference_editor.xml:752 reference_editor.xml:800 +#: reference_editor.xml:851 reference_editor.xml:917 reference_editor.xml:1011 +#: reference_editor.xml:1155 reference_editor.xml:1429 +#: reference_editor.xml:1488 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: title +#: reference_editor.xml:40 reference_editor.xml:117 reference_editor.xml:163 +#: reference_editor.xml:205 reference_editor.xml:247 reference_editor.xml:287 +#: reference_editor.xml:327 reference_editor.xml:372 reference_editor.xml:421 +#: reference_editor.xml:465 reference_editor.xml:514 reference_editor.xml:554 +#: reference_editor.xml:590 reference_editor.xml:624 reference_editor.xml:655 +#: reference_editor.xml:711 reference_editor.xml:758 reference_editor.xml:807 +#: reference_editor.xml:859 reference_editor.xml:924 reference_editor.xml:976 +#: reference_editor.xml:1015 reference_editor.xml:1063 +#: reference_editor.xml:1160 reference_editor.xml:1236 +#: reference_editor.xml:1366 reference_editor.xml:1434 +#: reference_editor.xml:1494 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:41 +#, no-c-format +msgid "" +"--guarantee all linestrings in a table are closed\n" +" --by adding the start point of each linestring to the end of " +"the line string\n" +" --only for those that are not closed\n" +" UPDATE sometable\n" +" SET the_geom = ST_AddPoint(the_geom, ST_StartPoint" +"(the_geom))\n" +" FROM sometable\n" +" WHERE ST_IsClosed(the_geom) = false;\n" +"\n" +" --Adding point to a 3-d line\n" +" SELECT ST_AsEWKT(ST_AddPoint(ST_GeomFromEWKT('LINESTRING(0 0 " +"1, 1 1 1)'), ST_MakePoint(1, 2, 3)));\n" +"\n" +" --result\n" +" st_asewkt\n" +" ----------\n" +" LINESTRING(0 0 1,1 1 1,1 2 3)" +msgstr "" + +#. Tag: title +#: reference_editor.xml:44 reference_editor.xml:124 reference_editor.xml:170 +#: reference_editor.xml:212 reference_editor.xml:254 reference_editor.xml:294 +#: reference_editor.xml:334 reference_editor.xml:381 reference_editor.xml:427 +#: reference_editor.xml:470 reference_editor.xml:519 reference_editor.xml:559 +#: reference_editor.xml:595 reference_editor.xml:628 reference_editor.xml:718 +#: reference_editor.xml:765 reference_editor.xml:814 reference_editor.xml:866 +#: reference_editor.xml:931 reference_editor.xml:981 reference_editor.xml:1019 +#: reference_editor.xml:1071 reference_editor.xml:1167 +#: reference_editor.xml:1311 reference_editor.xml:1388 +#: reference_editor.xml:1447 reference_editor.xml:1501 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_editor.xml:45 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:51 +#, no-c-format +msgid "ST_Affine" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:53 +#, no-c-format +msgid "" +"Applies a 3d affine transformation to the geometry to do things " +"like translate, rotate, scale in one step." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:57 +#, no-c-format +msgid "" +" geometry ST_Affine " +"geometry geomA " +"float a " +"float b " +"float c " +"float d " +"float e " +"float f " +"float g " +"float h " +"float i " +"float xoff " +"float yoff " +"float zoff geometry ST_Affine geometry geomA float a float b float d float e float xoff float yoff " +msgstr "" + +#. Tag: para +#: reference_editor.xml:91 +#, no-c-format +msgid "" +"Applies a 3d affine transformation to the geometry to do things like " +"translate, rotate, scale in one step." +msgstr "" + +#. Tag: para +#: reference_editor.xml:92 +#, no-c-format +msgid "" +"Version 1: The call ST_Affine(geom, a, b, c, d, e, f, g, h, " +"i, xoff, yoff, zoff) represents the transformation matrix " +"/ a b c xoff \\\n" +"| d e f yoff |\n" +"| g h i zoff |\n" +"\\ 0 0 0 1 / and the vertices are transformed as " +"follows: x' = a*x + b*y + c*z + xoff\n" +"y' = d*x + e*y + f*z + yoff\n" +"z' = g*x + h*y + i*z + zoff All of the translate / scale " +"functions below are expressed via such an affine transformation." +msgstr "" + +#. Tag: para +#: reference_editor.xml:99 +#, no-c-format +msgid "" +"Version 2: Applies a 2d affine transformation to the geometry. The call " +"ST_Affine(geom, a, b, d, e, xoff, yoff) " +"represents the transformation matrix / a b 0 xoff " +"\\ / a b xoff \\\n" +"| d e 0 yoff | rsp. | d e yoff |\n" +"| 0 0 1 0 | \\ 0 0 1 /\n" +"\\ 0 0 0 1 / and the vertices are transformed as " +"follows: x' = a*x + b*y + xoff\n" +"y' = d*x + e*y + yoff\n" +"z' = z This method is a subcase of the 3D method above." +msgstr "" + +#. Tag: para +#: reference_editor.xml:105 reference_editor.xml:699 reference_editor.xml:749 +#: reference_editor.xml:797 reference_editor.xml:846 reference_editor.xml:915 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was " +"introduced." +msgstr "" + +#. Tag: para +#: reference_editor.xml:106 +#, no-c-format +msgid "Availability: 1.1.2. Name changed from Affine to ST_Affine in 1.2.2" +msgstr "" + +#. Tag: para +#: reference_editor.xml:107 reference_editor.xml:849 reference_editor.xml:911 +#: reference_editor.xml:1356 reference_editor.xml:1426 +#: reference_editor.xml:1484 +#, no-c-format +msgid "" +"Prior to 1.3.4, this function crashes if used with geometries that contain " +"CURVES. This is fixed in 1.3.4+" +msgstr "" + +#. Tag: para +#: reference_editor.xml:109 reference_editor.xml:157 reference_editor.xml:198 +#: reference_editor.xml:240 reference_editor.xml:365 reference_editor.xml:417 +#: reference_editor.xml:704 reference_editor.xml:751 reference_editor.xml:799 +#: reference_editor.xml:853 reference_editor.xml:916 reference_editor.xml:1361 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_editor.xml:110 reference_editor.xml:705 reference_editor.xml:753 +#: reference_editor.xml:801 reference_editor.xml:854 reference_editor.xml:919 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: para +#: reference_editor.xml:112 reference_editor.xml:156 reference_editor.xml:199 +#: reference_editor.xml:242 reference_editor.xml:282 reference_editor.xml:322 +#: reference_editor.xml:367 reference_editor.xml:703 reference_editor.xml:852 +#: reference_editor.xml:918 reference_editor.xml:1059 +#: reference_editor.xml:1360 reference_editor.xml:1430 +#: reference_editor.xml:1489 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:119 +#, no-c-format +msgid "" +"--Rotate a 3d line 180 degrees about the z axis. Note this is long-hand for " +"doing ST_Rotate();\n" +" SELECT ST_AsEWKT(ST_Affine(the_geom, cos(pi()), -sin(pi()), 0, sin(pi()), " +"cos(pi()), 0, 0, 0, 1, 0, 0, 0)) As using_affine,\n" +" ST_AsEWKT(ST_Rotate(the_geom, pi())) As using_rotate\n" +" FROM (SELECT ST_GeomFromEWKT('LINESTRING(1 2 3, 1 4 3)') As " +"the_geom) As foo;\n" +" using_affine | using_rotate\n" +"-----------------------------+-----------------------------\n" +" LINESTRING(-1 -2 3,-1 -4 3) | LINESTRING(-1 -2 3,-1 -4 3)\n" +"(1 row)\n" +"\n" +"--Rotate a 3d line 180 degrees in both the x and z axis\n" +"SELECT ST_AsEWKT(ST_Affine(the_geom, cos(pi()), -sin(pi()), 0, sin(pi()), cos" +"(pi()), -sin(pi()), 0, sin(pi()), cos(pi()), 0, 0, 0))\n" +" FROM (SELECT ST_GeomFromEWKT('LINESTRING(1 2 3, 1 4 3)') As " +"the_geom) As foo;\n" +" st_asewkt\n" +"-------------------------------\n" +" LINESTRING(-1 -2 -3,-1 -4 -3)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:126 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:132 +#, no-c-format +msgid "ST_Force_2D" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:134 +#, no-c-format +msgid "" +"Forces the geometries into a \"2-dimensional mode\" so that all output " +"representations will only have the X and Y coordinates." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:140 +#, no-c-format +msgid "" +"geometry ST_Force_2D " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:150 +#, no-c-format +msgid "" +"Forces the geometries into a \"2-dimensional mode\" so that all output " +"representations will only have the X and Y coordinates. This is useful for " +"force OGC-compliant output (since OGC only specifies 2-D geometries)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:155 reference_editor.xml:197 reference_editor.xml:239 +#: reference_editor.xml:362 reference_editor.xml:415 reference_editor.xml:1358 +#, no-c-format +msgid "Enhanced: 2.0.0 support for Polyhedral surfaces was introduced." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:165 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_Force_2D(ST_GeomFromEWKT('CIRCULARSTRING(1 1 2, 2 3 2, 4 " +"5 2, 6 7 2, 5 6 2)')));\n" +" st_asewkt\n" +"-------------------------------------\n" +"CIRCULARSTRING(1 1,2 3,4 5,6 7,5 6)\n" +"\n" +"SELECT ST_AsEWKT(ST_Force_2D('POLYGON((0 0 2,0 5 2,5 0 2,0 0 2),(1 1 2,3 1 " +"2,1 3 2,1 1 2))'));\n" +"\n" +" st_asewkt\n" +"----------------------------------------------\n" +" POLYGON((0 0,0 5,5 0,0 0),(1 1,3 1,1 3,1 1))" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:178 +#, no-c-format +msgid "ST_Force_3D" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:180 +#, no-c-format +msgid "Forces the geometries into XYZ mode. This is an alias for ST_Force_3DZ." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:185 +#, no-c-format +msgid "" +"geometry ST_Force_3D " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:195 +#, no-c-format +msgid "" +"Forces the geometries into XYZ mode. This is an alias for ST_Force_3DZ. If a " +"geometry has no Z component, then a 0 Z coordinate is tacked on." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:207 +#, no-c-format +msgid "" +"--Nothing happens to an already 3D geometry\n" +" SELECT ST_AsEWKT(ST_Force_3D(ST_GeomFromEWKT('CIRCULARSTRING" +"(1 1 2, 2 3 2, 4 5 2, 6 7 2, 5 6 2)')));\n" +" st_asewkt\n" +"-----------------------------------------------\n" +" CIRCULARSTRING(1 1 2,2 3 2,4 5 2,6 7 2,5 6 2)\n" +"\n" +"\n" +"SELECT ST_AsEWKT(ST_Force_3D('POLYGON((0 0,0 5,5 0,0 0),(1 1,3 1,1 3,1 " +"1))'));\n" +"\n" +" st_asewkt\n" +"--------------------------------------------------------------\n" +" POLYGON((0 0 0,0 5 0,5 0 0,0 0 0),(1 1 0,3 1 0,1 3 0,1 1 0))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:214 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:220 +#, no-c-format +msgid "ST_Force_3DZ" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:222 +#, no-c-format +msgid "Forces the geometries into XYZ mode. This is a synonym for ST_Force_3D." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:227 +#, no-c-format +msgid "" +"geometry ST_Force_3DZ " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:237 +#, no-c-format +msgid "" +"Forces the geometries into XYZ mode. This is a synonym for ST_Force_3DZ. If " +"a geometry has no Z component, then a 0 Z coordinate is tacked on." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:249 +#, no-c-format +msgid "" +"--Nothing happens to an already 3D geometry\n" +"SELECT ST_AsEWKT(ST_Force_3DZ(ST_GeomFromEWKT('CIRCULARSTRING(1 1 2, 2 3 2, " +"4 5 2, 6 7 2, 5 6 2)')));\n" +" st_asewkt\n" +"-----------------------------------------------\n" +" CIRCULARSTRING(1 1 2,2 3 2,4 5 2,6 7 2,5 6 2)\n" +"\n" +"\n" +"SELECT ST_AsEWKT(ST_Force_3DZ('POLYGON((0 0,0 5,5 0,0 0),(1 1,3 1,1 3,1 " +"1))'));\n" +"\n" +" st_asewkt\n" +"--------------------------------------------------------------\n" +" POLYGON((0 0 0,0 5 0,5 0 0,0 0 0),(1 1 0,3 1 0,1 3 0,1 1 0))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:256 reference_editor.xml:336 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:262 +#, no-c-format +msgid "ST_Force_3DM" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:264 +#, no-c-format +msgid "Forces the geometries into XYM mode." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:269 +#, no-c-format +msgid "" +"geometry ST_Force_3DM " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:279 +#, no-c-format +msgid "" +"Forces the geometries into XYM mode. If a geometry has no M component, then " +"a 0 M coordinate is tacked on. If it has a Z component, then Z is removed" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:289 +#, no-c-format +msgid "" +"--Nothing happens to an already 3D geometry\n" +"SELECT ST_AsEWKT(ST_Force_3DM(ST_GeomFromEWKT('CIRCULARSTRING(1 1 2, 2 3 2, " +"4 5 2, 6 7 2, 5 6 2)')));\n" +" st_asewkt\n" +"------------------------------------------------\n" +" CIRCULARSTRINGM(1 1 0,2 3 0,4 5 0,6 7 0,5 6 0)\n" +"\n" +"\n" +"SELECT ST_AsEWKT(ST_Force_3DM('POLYGON((0 0 1,0 5 1,5 0 1,0 0 1),(1 1 1,3 1 " +"1,1 3 1,1 1 1))'));\n" +"\n" +" st_asewkt\n" +"---------------------------------------------------------------\n" +" POLYGONM((0 0 0,0 5 0,5 0 0,0 0 0),(1 1 0,3 1 0,1 3 0,1 1 0))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:296 reference_editor.xml:383 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:302 +#, no-c-format +msgid "ST_Force_4D" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:304 +#, no-c-format +msgid "Forces the geometries into XYZM mode." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:309 +#, no-c-format +msgid "" +"geometry ST_Force_4D " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:319 +#, no-c-format +msgid "" +"Forces the geometries into XYZM mode. 0 is tacked on for missing Z and M " +"dimensions." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:329 +#, no-c-format +msgid "" +"--Nothing happens to an already 3D geometry\n" +"SELECT ST_AsEWKT(ST_Force_4D(ST_GeomFromEWKT('CIRCULARSTRING(1 1 2, 2 3 2, 4 " +"5 2, 6 7 2, 5 6 2)')));\n" +" st_asewkt\n" +"---------------------------------------------------------\n" +" CIRCULARSTRING(1 1 2 0,2 3 2 0,4 5 2 0,6 7 2 0,5 6 2 0)\n" +"\n" +"\n" +"\n" +"SELECT ST_AsEWKT(ST_Force_4D('MULTILINESTRINGM((0 0 1,0 5 2,5 0 3,0 0 4),(1 " +"1 1,3 1 1,1 3 1,1 1 1))'));\n" +"\n" +" st_asewkt\n" +"--------------------------------------------------------------------------------------\n" +" MULTILINESTRING((0 0 0 1,0 5 0 2,5 0 0 3,0 0 0 4),(1 1 0 1,3 1 0 1,1 3 0 " +"1,1 1 0 1))" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:342 +#, no-c-format +msgid "ST_Force_Collection" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:344 +#, no-c-format +msgid "Converts the geometry into a GEOMETRYCOLLECTION." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:349 +#, no-c-format +msgid "" +"geometry ST_Force_Collection " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_editor.xml:359 +#, no-c-format +msgid "" +"Converts the geometry into a GEOMETRYCOLLECTION. This is useful for " +"simplifying the WKB representation." +msgstr "" + +#. Tag: para +#: reference_editor.xml:363 +#, no-c-format +msgid "" +"Availability: 1.2.2, prior to 1.3.4 this function will crash with Curves. " +"This is fixed in 1.3.4+" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:374 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_Force_Collection('POLYGON((0 0 1,0 5 1,5 0 1,0 0 1),(1 " +"1 1,3 1 1,1 3 1,1 1 1))'));\n" +"\n" +" st_asewkt\n" +"----------------------------------------------------------------------------------\n" +" GEOMETRYCOLLECTION(POLYGON((0 0 1,0 5 1,5 0 1,0 0 1),(1 1 1,3 1 1,1 3 1,1 1 " +"1)))\n" +"\n" +"\n" +" SELECT ST_AsText(ST_Force_Collection('CIRCULARSTRING(220227 150406,2220227 " +"150407,220227 150406)'));\n" +" st_astext\n" +"--------------------------------------------------------------------------------\n" +" GEOMETRYCOLLECTION(CIRCULARSTRING(220227 150406,2220227 150407,220227 " +"150406))\n" +"(1 row)" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:376 +#, no-c-format +msgid "" +"-- POLYHEDRAL example --\n" +"SELECT ST_AsEWKT(ST_Force_Collection('POLYHEDRALSURFACE(((0 0 0,0 0 1,0 1 " +"1,0 1 0,0 0 0)),\n" +" ((0 0 0,0 1 0,1 1 0,1 0 0,0 0 0)),\n" +" ((0 0 0,1 0 0,1 0 1,0 0 1,0 0 0)),\n" +" ((1 1 0,1 1 1,1 0 1,1 0 0,1 1 0)),\n" +" ((0 1 0,0 1 1,1 1 1,1 1 0,0 1 0)),\n" +" ((0 0 1,1 0 1,1 1 1,0 1 1,0 0 1)))'))\n" +"\n" +" st_asewkt\n" +"----------------------------------------------------------------------------------\n" +"GEOMETRYCOLLECTION(\n" +" POLYGON((0 0 0,0 0 1,0 1 1,0 1 0,0 0 0)),\n" +" POLYGON((0 0 0,0 1 0,1 1 0,1 0 0,0 0 0)),\n" +" POLYGON((0 0 0,1 0 0,1 0 1,0 0 1,0 0 0)),\n" +" POLYGON((1 1 0,1 1 1,1 0 1,1 0 0,1 1 0)),\n" +" POLYGON((0 1 0,0 1 1,1 1 1,1 1 0,0 1 0)),\n" +" POLYGON((0 0 1,1 0 1,1 1 1,0 1 1,0 0 1))\n" +")" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:390 +#, no-c-format +msgid "ST_ForceRHR" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:392 +#, no-c-format +msgid "" +"Forces the orientation of the vertices in a polygon to follow the Right-Hand-" +"Rule." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:398 +#, no-c-format +msgid "" +"boolean ST_ForceRHR " +"geometry g" +msgstr "" + +#. Tag: para +#: reference_editor.xml:409 +#, no-c-format +msgid "" +"Forces the orientation of the vertices in a polygon to follow the Right-Hand-" +"Rule. In GIS terminology, this means that the area that is bounded by the " +"polygon is to the right of the boundary. In particular, the exterior ring is " +"orientated in a clockwise direction and the interior rings in a counter-" +"clockwise direction." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:423 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(\n" +" ST_ForceRHR(\n" +" 'POLYGON((0 0 2, 5 0 2, 0 5 2, 0 0 2),(1 1 2, 1 3 2, 3 1 2, 1 1 " +"2))'\n" +" )\n" +");\n" +" st_asewkt\n" +"--------------------------------------------------------------\n" +" POLYGON((0 0 2,0 5 2,5 0 2,0 0 2),(1 1 2,3 1 2,1 3 2,1 1 2))\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:429 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:437 +#, no-c-format +msgid "ST_LineMerge" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:439 +#, no-c-format +msgid "" +"Returns a (set of) LineString(s) formed by sewing together a MULTILINESTRING." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:445 +#, no-c-format +msgid "" +"geometry ST_LineMerge " +"geometry amultilinestring" +msgstr "" + +#. Tag: para +#: reference_editor.xml:455 +#, no-c-format +msgid "" +"Returns a (set of) LineString(s) formed by sewing together the constituent " +"line work of a MULTILINESTRING." +msgstr "" + +#. Tag: para +#: reference_editor.xml:457 +#, no-c-format +msgid "" +"Only use with MULTILINESTRING/LINESTRINGs. If you feed a polygon or geometry " +"collection into this function, it will return an empty GEOMETRYCOLLECTION" +msgstr "" + +#. Tag: para +#: reference_editor.xml:461 +#, no-c-format +msgid "requires GEOS >= 2.1.0" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:467 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_LineMerge(\n" +"ST_GeomFromText('MULTILINESTRING((-29 -27,-30 -29.7,-36 -31,-45 -33),(-45 " +"-33,-46 -32))')\n" +" )\n" +");\n" +"st_astext\n" +"--------------------------------------------------------------------------------------------------\n" +"LINESTRING(-29 -27,-30 -29.7,-36 -31,-45 -33,-46 -32)\n" +"(1 row)\n" +"\n" +"--If can't be merged - original MULTILINESTRING is returned\n" +"SELECT ST_AsText(ST_LineMerge(\n" +"ST_GeomFromText('MULTILINESTRING((-29 -27,-30 -29.7,-36 -31,-45 -33),(-45.2 " +"-33.2,-46 -32))')\n" +")\n" +");\n" +"st_astext\n" +"----------------\n" +"MULTILINESTRING((-45.2 -33.2,-46 -32),(-29 -27,-30 -29.7,-36 -31,-45 -33))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:471 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:477 +#, no-c-format +msgid "ST_CollectionExtract" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:479 +#, no-c-format +msgid "" +"Given a (multi)geometry, returns a (multi)geometry consisting only of " +"elements of the specified type." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:486 +#, no-c-format +msgid "" +"geometry ST_CollectionExtract " +"geometry collection integer type" +msgstr "" + +#. Tag: para +#: reference_editor.xml:497 +#, no-c-format +msgid "" +"Given a (multi)geometry, returns a (multi)geometry consisting only of " +"elements of the specified type. Sub-geometries that are not the specified " +"type are ignored. If there are no sub-geometries of the right type, an EMPTY " +"geometry will be returned. Only points, lines and polygons are supported. " +"Type numbers are 1 == POINT, 2 == LINESTRING, 3 == POLYGON." +msgstr "" + +#. Tag: para +#: reference_editor.xml:503 +#, no-c-format +msgid "Availability: 1.5.0" +msgstr "" + +#. Tag: para +#: reference_editor.xml:505 +#, no-c-format +msgid "" +"Prior to 1.5.3 this function returned non-collection inputs untouched, no " +"matter type. In 1.5.3 non-matching single geometries result in a NULL " +"return. In of 2.0.0 every case of missing match results in a typed EMPTY " +"return." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:516 +#, no-c-format +msgid "" +"-- Constants: 1 == POINT, 2 == LINESTRING, 3 == POLYGON\n" +"SELECT ST_AsText(ST_CollectionExtract(ST_GeomFromText('GEOMETRYCOLLECTION" +"(GEOMETRYCOLLECTION(POINT(0 0)))'),1));\n" +"st_astext\n" +"---------------\n" +"MULTIPOINT(0 0)\n" +"(1 row)\n" +"\n" +"SELECT ST_AsText(ST_CollectionExtract(ST_GeomFromText('GEOMETRYCOLLECTION" +"(GEOMETRYCOLLECTION(LINESTRING(0 0, 1 1)),LINESTRING(2 2, 3 3))'),2));\n" +"st_astext\n" +"---------------\n" +"MULTILINESTRING((0 0, 1 1), (2 2, 3 3))\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:520 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:526 +#, no-c-format +msgid "ST_CollectionHomogenize" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:528 +#, no-c-format +msgid "" +"Given a geometry collection, returns the \"simplest\" representation of the " +"contents." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:535 +#, no-c-format +msgid "" +"geometry ST_CollectionHomogenize " +"geometry collection" +msgstr "" + +#. Tag: para +#: reference_editor.xml:545 +#, no-c-format +msgid "" +"Given a geometry collection, returns the \"simplest\" representation of the " +"contents. Singletons will be returned as singletons. Collections that are " +"homogeneous will be returned as the appropriate multi-type." +msgstr "" + +#. Tag: para +#: reference_editor.xml:549 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:556 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_CollectionHomogenize('GEOMETRYCOLLECTION(POINT(0 " +"0))')); \n" +"\n" +" st_astext\n" +" ------------\n" +" POINT(0 0)\n" +" (1 row)\n" +"\n" +" SELECT ST_AsText(ST_CollectionHomogenize('GEOMETRYCOLLECTION(POINT(0 0)," +"POINT(1 1))')); \n" +"\n" +" st_astext\n" +" ---------------------\n" +" MULTIPOINT(0 0,1 1)\n" +" (1 row)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:560 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:566 +#, no-c-format +msgid "ST_Multi" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:568 +#, no-c-format +msgid "" +"Returns the geometry as a MULTI* geometry. If the geometry is " +"already a MULTI*, it is returned unchanged." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:574 +#, no-c-format +msgid "" +"geometry ST_Multi " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_editor.xml:584 +#, no-c-format +msgid "" +"Returns the geometry as a MULTI* geometry. If the geometry is already " +"a MULTI*, it is returned unchanged." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:592 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Multi(ST_GeomFromText('POLYGON((743238 2967416,743238 " +"2967450,\n" +" 743265 2967450,743265.625 2967416,743238 " +"2967416))')));\n" +" st_astext\n" +" --------------------------------------------------------------------------------------------------\n" +" MULTIPOLYGON(((743238 2967416,743238 2967450,743265 " +"2967450,743265.625 2967416,\n" +" 743238 2967416)))\n" +" (1 row)" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:602 +#, no-c-format +msgid "ST_RemovePoint" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:603 +#, no-c-format +msgid "Removes point from a linestring. Offset is 0-based." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:607 +#, no-c-format +msgid "" +"geometry ST_RemovePoint " +"geometry linestring " +"integer offset" +msgstr "" + +#. Tag: para +#: reference_editor.xml:618 +#, no-c-format +msgid "" +"Removes point from a linestring. Useful for turning a closed ring into an " +"open line string" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:625 +#, no-c-format +msgid "" +"--guarantee no LINESTRINGS are closed\n" +"--by removing the end point. The below assumes the_geom is of type " +"LINESTRING\n" +"UPDATE sometable\n" +" SET the_geom = ST_RemovePoint(the_geom, ST_NPoints(the_geom) - 1)\n" +" FROM sometable\n" +" WHERE ST_IsClosed(the_geom) = true;" +msgstr "" + +#. Tag: para +#: reference_editor.xml:629 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:635 +#, no-c-format +msgid "ST_Reverse" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:636 +#, no-c-format +msgid "Returns the geometry with vertex order reversed." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:641 +#, no-c-format +msgid "" +"geometry ST_Reverse " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_editor.xml:651 +#, no-c-format +msgid "Can be used on any geometry and reverses the order of the vertexes." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:656 +#, no-c-format +msgid "" +"SELECT ST_AsText(the_geom) as line, ST_AsText(ST_Reverse(the_geom)) As " +"reverseline\n" +"FROM\n" +"(SELECT ST_MakeLine(ST_MakePoint(1,2),\n" +" ST_MakePoint(1,10)) As the_geom) as foo;\n" +"--result\n" +" line | reverseline\n" +"---------------------+----------------------\n" +"LINESTRING(1 2,1 10) | LINESTRING(1 10,1 2)" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:662 +#, no-c-format +msgid "ST_Rotate" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:664 +#, no-c-format +msgid "Rotate a geometry rotRadians counter-clockwise about an origin." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:668 +#, no-c-format +msgid "" +" geometry ST_Rotate " +"geometry geomA " +"float rotRadians geometry ST_Rotate geometry geomA float rotRadians float x0 float y0 geometry " +"ST_Rotate geometry " +"geomA float " +"rotRadians geometry " +"pointOrigin " +msgstr "" + +#. Tag: para +#: reference_editor.xml:695 +#, no-c-format +msgid "" +"Rotates geometry rotRadians counter-clockwise about the origin. The rotation " +"origin can be specified either as a POINT geometry, or as x and y " +"coordinates. If the origin is not specified, the geometry is rotated about " +"POINT(0 0)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:700 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 additional parameters for specifying the origin of rotation " +"were added." +msgstr "" + +#. Tag: para +#: reference_editor.xml:701 +#, no-c-format +msgid "Availability: 1.1.2. Name changed from Rotate to ST_Rotate in 1.2.2" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:713 +#, no-c-format +msgid "" +"--Rotate 180 degrees\n" +"SELECT ST_AsEWKT(ST_Rotate('LINESTRING (50 160, 50 50, 100 50)', pi()));\n" +" st_asewkt\n" +"---------------------------------------\n" +" LINESTRING(-50 -160,-50 -50,-100 -50)\n" +"(1 row)\n" +"\n" +"--Rotate 30 degrees counter-clockwise at x=50, y=160\n" +"SELECT ST_AsEWKT(ST_Rotate('LINESTRING (50 160, 50 50, 100 50)', pi()/6, 50, " +"160));\n" +" st_asewkt\n" +"---------------------------------------------------------------------------\n" +" LINESTRING(50 160,105 64.7372055837117,148.301270189222 89.7372055837117)\n" +"(1 row)\n" +"\n" +"--Rotate 60 degrees clockwise from centroid\n" +"SELECT ST_AsEWKT(ST_Rotate(geom, -pi()/3, ST_Centroid(geom)))\n" +"FROM (SELECT 'LINESTRING (50 160, 50 50, 100 50)'::geometry AS geom) AS " +"foo;\n" +" st_asewkt\n" +"--------------------------------------------------------------\n" +" LINESTRING(116.4225 130.6721,21.1597 75.6721,46.1597 32.3708)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:720 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:726 +#, no-c-format +msgid "ST_RotateX" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:728 +#, no-c-format +msgid "Rotate a geometry rotRadians about the X axis." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:733 +#, no-c-format +msgid "" +"geometry ST_RotateX " +"geometry geomA " +"float rotRadians" +msgstr "" + +#. Tag: para +#: reference_editor.xml:744 +#, no-c-format +msgid "Rotate a geometry geomA - rotRadians about the X axis." +msgstr "" + +#. Tag: para +#: reference_editor.xml:746 +#, no-c-format +msgid "" +"ST_RotateX(geomA, rotRadians) is short-hand for ST_Affine" +"(geomA, 1, 0, 0, 0, cos(rotRadians), -sin(rotRadians), 0, sin(rotRadians), " +"cos(rotRadians), 0, 0, 0)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:750 +#, no-c-format +msgid "Availability: 1.1.2. Name changed from RotateX to ST_RotateX in 1.2.2" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:760 +#, no-c-format +msgid "" +"--Rotate a line 90 degrees along x-axis\n" +"SELECT ST_AsEWKT(ST_RotateX(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), pi" +"()/2));\n" +" st_asewkt\n" +"---------------------------\n" +" LINESTRING(1 -3 2,1 -1 1)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:767 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:773 +#, no-c-format +msgid "ST_RotateY" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:775 +#, no-c-format +msgid "Rotate a geometry rotRadians about the Y axis." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:780 +#, no-c-format +msgid "" +"geometry ST_RotateY " +"geometry geomA " +"float rotRadians" +msgstr "" + +#. Tag: para +#: reference_editor.xml:791 +#, no-c-format +msgid "Rotate a geometry geomA - rotRadians about the y axis." +msgstr "" + +#. Tag: para +#: reference_editor.xml:793 +#, no-c-format +msgid "" +"ST_RotateY(geomA, rotRadians) is short-hand for ST_Affine" +"(geomA, cos(rotRadians), 0, sin(rotRadians), 0, 1, 0, -sin(rotRadians), 0, " +"cos(rotRadians), 0, 0, 0)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:796 +#, no-c-format +msgid "Availability: 1.1.2. Name changed from RotateY to ST_RotateY in 1.2.2" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:809 +#, no-c-format +msgid "" +"--Rotate a line 90 degrees along y-axis\n" +" SELECT ST_AsEWKT(ST_RotateY(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), pi" +"()/2));\n" +" st_asewkt\n" +"---------------------------\n" +" LINESTRING(3 2 -1,1 1 -1)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:816 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:822 +#, no-c-format +msgid "ST_RotateZ" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:824 +#, no-c-format +msgid "Rotate a geometry rotRadians about the Z axis." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:829 +#, no-c-format +msgid "" +"geometry ST_RotateZ " +"geometry geomA " +"float rotRadians" +msgstr "" + +#. Tag: para +#: reference_editor.xml:840 +#, no-c-format +msgid "Rotate a geometry geomA - rotRadians about the Z axis." +msgstr "" + +#. Tag: para +#: reference_editor.xml:842 +#, no-c-format +msgid "This is a synonym for ST_Rotate" +msgstr "" + +#. Tag: para +#: reference_editor.xml:843 +#, no-c-format +msgid "" +"ST_RotateZ(geomA, rotRadians) is short-hand for SELECT " +"ST_Affine(geomA, cos(rotRadians), -sin(rotRadians), 0, sin(rotRadians), cos" +"(rotRadians), 0, 0, 0, 1, 0, 0, 0)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:848 +#, no-c-format +msgid "Availability: 1.1.2. Name changed from RotateZ to ST_RotateZ in 1.2.2" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:861 +#, no-c-format +msgid "" +"--Rotate a line 90 degrees along z-axis\n" +"SELECT ST_AsEWKT(ST_RotateZ(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), pi" +"()/2));\n" +" st_asewkt\n" +"---------------------------\n" +" LINESTRING(-2 1 3,-1 1 1)\n" +"\n" +" --Rotate a curved circle around z-axis\n" +"SELECT ST_AsEWKT(ST_RotateZ(the_geom, pi()/2))\n" +"FROM (SELECT ST_LineToCurve(ST_Buffer(ST_GeomFromText('POINT(234 567)'), 3)) " +"As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"----------------------------------------------------------------------------------------------------------------------------\n" +" CURVEPOLYGON(CIRCULARSTRING(-567 237,-564.87867965644 236.12132034356,-564 " +"234,-569.12132034356 231.87867965644,-567 237))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:868 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:874 +#, no-c-format +msgid "ST_Scale" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:876 +#, no-c-format +msgid "" +"Scales the geometry to a new size by multiplying the ordinates " +"with the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor)." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:883 +#, no-c-format +msgid "" +" geometry ST_Scale " +"geometry geomA " +"float XFactor " +"float YFactor " +"float ZFactor geometry ST_Scale geometry geomA float XFactor float YFactor " +msgstr "" + +#. Tag: para +#: reference_editor.xml:904 +#, no-c-format +msgid "" +"Scales the geometry to a new size by multiplying the ordinates with " +"the parameters. Ie: ST_Scale(geom, Xfactor, Yfactor, Zfactor)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:908 +#, no-c-format +msgid "" +"ST_Scale(geomA, XFactor, YFactor, ZFactor) is short-hand for " +"ST_Affine(geomA, XFactor, 0, 0, 0, YFactor, 0, 0, 0, ZFactor, 0, 0, 0)" +"." +msgstr "" + +#. Tag: para +#: reference_editor.xml:914 reference_editor.xml:1487 +#, no-c-format +msgid "Availability: 1.1.0." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:926 +#, no-c-format +msgid "" +"--Version 1: scale X, Y, Z\n" +"SELECT ST_AsEWKT(ST_Scale(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), 0.5, " +"0.75, 0.8));\n" +" st_asewkt\n" +"--------------------------------------\n" +" LINESTRING(0.5 1.5 2.4,0.5 0.75 0.8)\n" +"\n" +"--Version 2: Scale X Y\n" +" SELECT ST_AsEWKT(ST_Scale(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), 0.5, " +"0.75));\n" +" st_asewkt\n" +"----------------------------------\n" +" LINESTRING(0.5 1.5 3,0.5 0.75 1)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:933 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:939 +#, no-c-format +msgid "ST_Segmentize" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:941 +#, no-c-format +msgid "" +"Return a modified geometry/geography having no segment longer than the given " +"distance. Distance computation is performed in 2d only. For geometry, length " +"units are in units of spatial reference. For geography, units are in meters." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:947 +#, no-c-format +msgid "" +" geometry ST_Segmentize geometry geom float max_segment_length geometry " +"ST_Segmentize geography geog float " +"max_segment_length " +msgstr "" + +#. Tag: para +#: reference_editor.xml:964 +#, no-c-format +msgid "" +"Returns a modified geometry having no segment longer than the given " +"max_segment_length. Distance computation is performed in " +"2d only. For geometry, length units are in units of spatial reference. For " +"geography, units are in meters." +msgstr "" + +#. Tag: para +#: reference_editor.xml:967 reference_editor.xml:1428 +#, no-c-format +msgid "Availability: 1.2.2" +msgstr "" + +#. Tag: para +#: reference_editor.xml:968 +#, no-c-format +msgid "Enhanced: 2.1.0 support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_editor.xml:969 +#, no-c-format +msgid "" +"Changed: 2.1.0 As a result of the introduction of geography support: The " +"construct SELECT ST_Segmentize('LINESTRING(1 2, 3 4)',0.5); " +"will result in ambiguous function error. You need to have properly typed " +"object e.g. a geometry/geography column, use ST_GeomFromText, " +"ST_GeogFromText or SELECT ST_Segmentize('LINESTRING(1 2, 3 4)'::" +"geometry,0.5);" +msgstr "" + +#. Tag: para +#: reference_editor.xml:971 +#, no-c-format +msgid "" +"This will only increase segments. It will not lengthen segments shorter than " +"max length" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:978 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Segmentize(\n" +"ST_GeomFromText('MULTILINESTRING((-29 -27,-30 -29.7,-36 -31,-45 -33),(-45 " +"-33,-46 -32))')\n" +" ,5)\n" +");\n" +"st_astext\n" +"--------------------------------------------------------------------------------------------------\n" +"MULTILINESTRING((-29 -27,-30 -29.7,-34.886615700134 -30.758766735029,-36 " +"-31,\n" +"-40.8809353009198 -32.0846522890933,-45 -33),\n" +"(-45 -33,-46 -32))\n" +"(1 row)\n" +"\n" +"SELECT ST_AsText(ST_Segmentize(ST_GeomFromText('POLYGON((-29 28, -30 40, -29 " +"28))'),10));\n" +"st_astext\n" +"-----------------------\n" +"POLYGON((-29 28,-29.8304547985374 37.9654575824488,-30 40,-29.1695452014626 " +"30.0345424175512,-29 28))\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:988 +#, no-c-format +msgid "ST_SetPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:989 +#, no-c-format +msgid "Replace point N of linestring with given point. Index is 0-based." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:994 +#, no-c-format +msgid "" +"geometry ST_SetPoint " +"geometry linestring " +"integer zerobasedposition geometry point" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1006 +#, no-c-format +msgid "" +"Replace point N of linestring with given point. Index is 0-based. This is " +"especially useful in triggers when trying to maintain relationship of joints " +"when one vertex moves." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1016 +#, no-c-format +msgid "" +"--Change first point in line string from -1 3 to -1 1\n" +"SELECT ST_AsText(ST_SetPoint('LINESTRING(-1 2,-1 3)', 0, 'POINT(-1 1)'));\n" +" st_astext\n" +"-----------------------\n" +" LINESTRING(-1 1,-1 3)\n" +"\n" +"---Change last point in a line string (lets play with 3d linestring this " +"time)\n" +"SELECT ST_AsEWKT(ST_SetPoint(foo.the_geom, ST_NumPoints(foo.the_geom) - 1, " +"ST_GeomFromEWKT('POINT(-1 1 3)')))\n" +"FROM (SELECT ST_GeomFromEWKT('LINESTRING(-1 2 3,-1 3 4, 5 6 7)') As " +"the_geom) As foo;\n" +" st_asewkt\n" +"-----------------------\n" +"LINESTRING(-1 2 3,-1 3 4,-1 1 3)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1020 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1026 +#, no-c-format +msgid "ST_SetSRID" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1028 +#, no-c-format +msgid "Sets the SRID on a geometry to a particular integer value." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:1034 +#, no-c-format +msgid "" +"geometry ST_SetSRID " +"geometry geom " +"integer srid" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1049 +#, no-c-format +msgid "" +"Sets the SRID on a geometry to a particular integer value. Useful in " +"constructing bounding boxes for queries." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1053 +#, no-c-format +msgid "" +"This function does not transform the geometry coordinates in any way - it " +"simply sets the meta data defining the spatial reference system the geometry " +"is assumed to be in. Use if you want to " +"transform the geometry into a new projection." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1058 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1064 +#, no-c-format +msgid "-- Mark a point as WGS 84 long lat --" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1065 +#, no-c-format +msgid "" +"SELECT ST_SetSRID(ST_Point(-123.365556, 48.428611),4326) As wgs84long_lat;\n" +"-- the ewkt representation (wrap with ST_AsEWKT) -\n" +"SRID=4326;POINT(-123.365556 48.428611)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1066 +#, no-c-format +msgid "" +"-- Mark a point as WGS 84 long lat and then transform to web mercator " +"(Spherical Mercator) --" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1067 +#, no-c-format +msgid "" +"SELECT ST_Transform(ST_SetSRID(ST_Point(-123.365556, 48.428611),4326),3785) " +"As spere_merc;\n" +"-- the ewkt representation (wrap with ST_AsEWKT) -\n" +"SRID=3785;POINT(-13732990.8753491 6178458.96425423)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1073 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1080 +#, no-c-format +msgid "ST_SnapToGrid" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1082 +#, no-c-format +msgid "Snap all points of the input geometry to a regular grid." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:1088 +#, no-c-format +msgid "" +" geometry ST_SnapToGrid geometry geomA float originX float originY float sizeX float sizeY geometry " +"ST_SnapToGrid geometry geomA float " +"sizeX float " +"sizeY " +"geometry ST_SnapToGrid " +"geometry geomA " +"float size geometry ST_SnapToGrid geometry geomA geometry " +"pointOrigin float " +"sizeX float " +"sizeY float " +"sizeZ float " +"sizeM " +msgstr "" + +#. Tag: para +#: reference_editor.xml:1126 +#, no-c-format +msgid "" +"Variant 1,2,3: Snap all points of the input geometry to the grid defined by " +"its origin and cell size. Remove consecutive points falling on the same " +"cell, eventually returning NULL if output points are not enough to define a " +"geometry of the given type. Collapsed geometries in a collection are " +"stripped from it. Useful for reducing precision." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1134 +#, no-c-format +msgid "" +"Variant 4: Introduced 1.1.0 - Snap all points of the input geometry to the " +"grid defined by its origin (the second argument, must be a point) and cell " +"sizes. Specify 0 as size for any dimension you don't want to snap to a grid." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1140 +#, no-c-format +msgid "" +"The returned geometry might loose its simplicity (see )." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1145 +#, no-c-format +msgid "" +"Before release 1.1.0 this function always returned a 2d geometry. Starting " +"at 1.1.0 the returned geometry will have same dimensionality as the input " +"one with higher dimension values untouched. Use the version taking a second " +"geometry argument to define all grid dimensions." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1152 +#, no-c-format +msgid "Availability: 1.0.0RC1" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1153 +#, no-c-format +msgid "Availability: 1.1.0 - Z and M support" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1162 +#, no-c-format +msgid "" +"--Snap your geometries to a precision grid of 10^-3\n" +"UPDATE mytable\n" +" SET the_geom = ST_SnapToGrid(the_geom, 0.001);\n" +"\n" +"SELECT ST_AsText(ST_SnapToGrid(\n" +" ST_GeomFromText('LINESTRING(1.1115678 2.123, " +"4.111111 3.2374897, 4.11112 3.23748667)'),\n" +" 0.001)\n" +" );\n" +" st_astext\n" +"-------------------------------------\n" +" LINESTRING(1.112 2.123,4.111 3.237)\n" +" --Snap a 4d geometry\n" +"SELECT ST_AsEWKT(ST_SnapToGrid(\n" +" ST_GeomFromEWKT('LINESTRING(-1.1115678 2.123 2.3456 1.11111,\n" +" 4.111111 3.2374897 3.1234 1.1111, -1.11111112 2.123 2.3456 " +"1.1111112)'),\n" +" ST_GeomFromEWKT('POINT(1.12 2.22 3.2 4.4444)'),\n" +" 0.1, 0.1, 0.1, 0.01) );\n" +" st_asewkt\n" +"------------------------------------------------------------------------------\n" +" LINESTRING(-1.08 2.12 2.3 1.1144,4.12 3.22 3.1 1.1144,-1.08 2.12 2.3 " +"1.1144)\n" +"\n" +"\n" +"--With a 4d geometry - the ST_SnapToGrid(geom,size) only touches x and y " +"coords but keeps m and z the same\n" +"SELECT ST_AsEWKT(ST_SnapToGrid(ST_GeomFromEWKT('LINESTRING(-1.1115678 2.123 " +"3 2.3456,\n" +" 4.111111 3.2374897 3.1234 1.1111)'),\n" +" 0.01) );\n" +" st_asewkt\n" +"---------------------------------------------------------\n" +" LINESTRING(-1.11 2.12 3 2.3456,4.11 3.24 3.1234 1.1111)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1169 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1182 +#, no-c-format +msgid "ST_Snap" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1184 +#, no-c-format +msgid "" +"Snap segments and vertices of input geometry to vertices of a reference " +"geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:1192 +#, no-c-format +msgid "" +"geometry ST_Snap " +"geometry input " +"geometry reference " +"float tolerance" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1204 +#, no-c-format +msgid "" +"Snaps the vertices and segments of a geometry another Geometry's vertices. A " +"snap distance tolerance is used to control where snapping is performed." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1209 +#, no-c-format +msgid "" +"Snapping one geometry to another can improve robustness for overlay " +"operations by eliminating nearly-coincident edges (which cause problems " +"during noding and intersection calculation)." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1216 +#, no-c-format +msgid "" +"Too much snapping can result in invalid topology being created, so the " +"number and location of snapped vertices is decided using heuristics to " +"determine when it is safe to snap. This can result in some potential snaps " +"being omitted, however." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1225 +#, no-c-format +msgid "" +"The returned geometry might loose its simplicity (see ) and validity (see )." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1232 +#, no-c-format +msgid "Availability: 2.0.0 requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1249 +#, no-c-format +msgid "A multipolygon shown with a linestring (before any snapping)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1260 +#, no-c-format +msgid "" +"A multipolygon snapped to linestring to tolerance: 1.01 of distance. The new " +"multipolygon is shown with reference linestring" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1264 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Snap(poly,line, ST_Distance(poly,line)*1.01)) AS " +"polysnapped\n" +"FROM (SELECT \n" +" ST_GeomFromText('MULTIPOLYGON(\n" +" ((26 125, 26 200, 126 200, 126 125, 26 125 ),\n" +" ( 51 150, 101 150, 76 175, 51 150 )), \n" +" (( 151 100, 151 200, 176 175, 151 100 )))') As poly,\n" +" ST_GeomFromText('LINESTRING (5 107, 54 84, 101 100)') As line\n" +" \n" +" ) As foo;\n" +"\n" +" polysnapped\n" +"---------------------------------------------------------------------\n" +" MULTIPOLYGON(((26 125,26 200,126 200,126 125,101 100,26 125),\n" +" (51 150,101 150,76 175,51 150)),((151 100,151 200,176 175,151 100)))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1271 +#, no-c-format +msgid "" +"A multipolygon snapped to linestring to tolerance: 1.25 of distance. The new " +"multipolygon is shown with reference linestring" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1275 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_Snap(poly,line, ST_Distance(poly,line)*1.25)\n" +" ) AS polysnapped\n" +"FROM (SELECT \n" +" ST_GeomFromText('MULTIPOLYGON(\n" +" (( 26 125, 26 200, 126 200, 126 125, 26 125 ),\n" +" ( 51 150, 101 150, 76 175, 51 150 )),\n" +" (( 151 100, 151 200, 176 175, 151 100 )))') As poly,\n" +" ST_GeomFromText('LINESTRING (5 107, 54 84, 101 100)') As line\n" +" \n" +" ) As foo;\n" +"\n" +" polysnapped\n" +"---------------------------------------------------------------------\n" +"MULTIPOLYGON(((5 107,26 200,126 200,126 125,101 100,54 84,5 107),\n" +"(51 150,101 150,76 175,51 150)),((151 100,151 200,176 175,151 100)))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1284 +#, no-c-format +msgid "" +"The linestring snapped to the original multipolygon at tolerance 1.01 of " +"distance. The new linestring is shown with reference multipolygon" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1288 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_Snap(line, poly, ST_Distance(poly,line)*1.01)\n" +" ) AS linesnapped\n" +"FROM (SELECT \n" +" ST_GeomFromText('MULTIPOLYGON(\n" +" ((26 125, 26 200, 126 200, 126 125, 26 125),\n" +" (51 150, 101 150, 76 175, 51 150 )), \n" +" ((151 100, 151 200, 176 175, 151 100)))') As poly,\n" +" ST_GeomFromText('LINESTRING (5 107, 54 84, 101 100)') As line\n" +" ) As foo;\n" +"\n" +" linesnapped\n" +"----------------------------------------\n" +" LINESTRING(5 107,26 125,54 84,101 100)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1296 +#, no-c-format +msgid "" +"The linestring snapped to the original multipolygon at tolerance 1.25 of " +"distance. The new linestring is shown with reference multipolygon" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1300 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_Snap(line, poly, ST_Distance(poly,line)*1.25)\n" +" ) AS linesnapped\n" +"FROM (SELECT \n" +" ST_GeomFromText('MULTIPOLYGON(\n" +" (( 26 125, 26 200, 126 200, 126 125, 26 125 ),\n" +" (51 150, 101 150, 76 175, 51 150 )), \n" +" ((151 100, 151 200, 176 175, 151 100 )))') As poly,\n" +" ST_GeomFromText('LINESTRING (5 107, 54 84, 101 100)') As " +"line \n" +" ) As foo;\n" +" linesnapped\n" +"---------------------------------------\n" +"LINESTRING(26 125,54 84,101 100)" +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1321 +#, no-c-format +msgid "ST_Transform" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1323 +#, no-c-format +msgid "" +"Returns a new geometry with its coordinates transformed to the SRID " +"referenced by the integer parameter." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:1329 +#, no-c-format +msgid "" +"geometry ST_Transform " +"geometry g1 " +"integer srid" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1340 +#, no-c-format +msgid "" +"Returns a new geometry with its coordinates transformed to spatial reference " +"system referenced by the SRID integer parameter. The destination SRID must " +"exist in the SPATIAL_REF_SYS table." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1343 +#, no-c-format +msgid "" +"ST_Transform is often confused with ST_SetSRID(). ST_Transform actually " +"changes the coordinates of a geometry from one spatial reference system to " +"another, while ST_SetSRID() simply changes the SRID identifier of the " +"geometry" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1348 +#, no-c-format +msgid "" +"Requires PostGIS be compiled with Proj support. Use to confirm you have proj support compiled in." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1352 +#, no-c-format +msgid "" +"If using more than one transformation, it is useful to have a functional " +"index on the commonly used transformations to take advantage of index usage." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1359 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.6" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1367 +#, no-c-format +msgid "Change Mass state plane US feet geometry to WGS 84 long lat" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1368 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Transform(ST_GeomFromText('POLYGON((743238 " +"2967416,743238 2967450,\n" +" 743265 2967450,743265.625 2967416,743238 2967416))',2249),4326)) As " +"wgs_geom;\n" +"\n" +" wgs_geom\n" +"---------------------------\n" +" POLYGON((-71.1776848522251 42.3902896512902,-71.1776843766326 " +"42.3903829478009,\n" +"-71.1775844305465 42.3903826677917,-71.1775825927231 " +"42.3902893647987,-71.177684\n" +"8522251 42.3902896512902));\n" +"(1 row)\n" +"\n" +"--3D Circular String example\n" +"SELECT ST_AsEWKT(ST_Transform(ST_GeomFromEWKT('SRID=2249;CIRCULARSTRING" +"(743238 2967416 1,743238 2967450 2,743265 2967450 3,743265.625 2967416 " +"3,743238 2967416 4)'),4326));\n" +"\n" +" st_asewkt\n" +"--------------------------------------------------------------------------------------\n" +" SRID=4326;CIRCULARSTRING(-71.1776848522251 42.3902896512902 " +"1,-71.1776843766326 42.3903829478009 2,\n" +" -71.1775844305465 42.3903826677917 3,\n" +" -71.1775825927231 42.3902893647987 3,-71.1776848522251 42.3902896512902 4)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1369 +#, no-c-format +msgid "" +"Example of creating a partial functional index. For tables where you are not " +"sure all the geometries will be filled in, its best to use a partial index " +"that leaves out null geometries which will both conserve space and make your " +"index smaller and more efficient." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1371 +#, no-c-format +msgid "" +"CREATE INDEX idx_the_geom_26986_parcels\n" +" ON parcels\n" +" USING gist\n" +" (ST_Transform(the_geom, 26986))\n" +" WHERE the_geom IS NOT NULL;" +msgstr "" + +#. Tag: title +#: reference_editor.xml:1375 +#, no-c-format +msgid "Configuring transformation behaviour" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1376 +#, no-c-format +msgid "" +"Sometimes coordinate transformation involving a grid-shift can fail, for " +"example if PROJ.4 has not been built with grid-shift files or the coordinate " +"does not lie within the range for which the grid shift is defined. By " +"default, PostGIS will throw an error if a grid shift file is not present, " +"but this behaviour can be configured on a per-SRID basis by altering the " +"proj4text value within the spatial_ref_sys table." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1377 +#, no-c-format +msgid "" +"For example, the proj4text parameter +datum=NAD87 is a shorthand form for " +"the following +nadgrids parameter:" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1378 +#, no-c-format +msgid "+nadgrids=@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1379 +#, no-c-format +msgid "" +"The @ prefix means no error is reported if the files are not present, but if " +"the end of the list is reached with no file having been appropriate (ie. " +"found and overlapping) then an error is issued." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1380 +#, no-c-format +msgid "" +"If, conversely, you wanted to ensure that at least the standard files were " +"present, but that if all files were scanned without a hit a null " +"transformation is applied you could use:" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1381 +#, no-c-format +msgid "+nadgrids=@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat,null" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1382 +#, no-c-format +msgid "" +"The null grid shift file is a valid grid shift file covering the whole world " +"and applying no shift. So for a complete example, if you wanted to alter " +"PostGIS so that transformations to SRID 4267 that didn't lie within the " +"correct range did not throw an ERROR, you would use the following:" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1383 +#, no-c-format +msgid "" +"UPDATE spatial_ref_sys SET proj4text = '+proj=longlat +ellps=clrk66 " +"+nadgrids=@conus,@alaska,@ntv2_0.gsb,@ntv1_can.dat,null +no_defs' WHERE srid " +"= 4267;" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1390 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1396 +#, no-c-format +msgid "ST_Translate" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1398 +#, no-c-format +msgid "" +"Translates the geometry to a new location using the numeric parameters as " +"offsets. Ie: ST_Translate(geom, X, Y) or ST_Translate(geom, X, Y,Z)." +msgstr "" + +#. Tag: funcsynopsis +#: reference_editor.xml:1403 +#, no-c-format +msgid "" +" geometry ST_Translate geometry g1 float deltax float deltay geometry " +"ST_Translate geometry " +"g1 float " +"deltax float " +"deltay float " +"deltaz " +msgstr "" + +#. Tag: para +#: reference_editor.xml:1423 +#, no-c-format +msgid "" +"Returns a new geometry whose coordinates are translated delta x,delta y," +"delta z units. Units are based on the units defined in spatial reference " +"(SRID) for this geometry." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1435 +#, no-c-format +msgid "Move a point 1 degree longitude" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1436 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Translate(ST_GeomFromText('POINT(-71.01 " +"42.37)',4326),1,0)) As wgs_transgeomtxt;\n" +"\n" +" wgs_transgeomtxt\n" +" ---------------------\n" +" POINT(-70.01 42.37)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1437 +#, no-c-format +msgid "Move a linestring 1 degree longitude and 1/2 degree latitude" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1438 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Translate(ST_GeomFromText('LINESTRING(-71.01 " +"42.37,-71.11 42.38)',4326),1,0.5)) As wgs_transgeomtxt;\n" +" wgs_transgeomtxt\n" +" ---------------------------------------\n" +" LINESTRING(-70.01 42.87,-70.11 42.88)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1439 +#, no-c-format +msgid "Move a 3d point" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1440 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_Translate(CAST('POINT(0 0 0)' As geometry), 5, 12,3));\n" +" st_asewkt\n" +" ---------\n" +" POINT(5 12 3)" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1441 +#, no-c-format +msgid "Move a curve and a point" +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1442 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Translate(ST_Collect('CURVEPOLYGON(CIRCULARSTRING(4 " +"3,3.12 0.878,1 0,-1.121 5.1213,6 7, 8 9,4 3))','POINT(1 3)'),1,2));\n" +" st_astext\n" +"------------------------------------------------------------------------------------------------------------\n" +" GEOMETRYCOLLECTION(CURVEPOLYGON(CIRCULARSTRING(5 5,4.12 2.878,2 2,-0.121 " +"7.1213,7 9,9 11,5 5)),POINT(2 5))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1448 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_editor.xml:1454 +#, no-c-format +msgid "ST_TransScale" +msgstr "" + +#. Tag: refpurpose +#: reference_editor.xml:1456 +#, no-c-format +msgid "" +"Translates the geometry using the deltaX and deltaY args, then " +"scales it using the XFactor, YFactor args, working in 2D only." +msgstr "" + +#. Tag: funcprototype +#: reference_editor.xml:1463 +#, no-c-format +msgid "" +"geometry ST_TransScale " +"geometry geomA " +"float deltaX " +"float deltaY " +"float XFactor " +"float YFactor" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1477 +#, no-c-format +msgid "" +"Translates the geometry using the deltaX and deltaY args, then scales " +"it using the XFactor, YFactor args, working in 2D only." +msgstr "" + +#. Tag: para +#: reference_editor.xml:1480 +#, no-c-format +msgid "" +"ST_TransScale(geomA, deltaX, deltaY, XFactor, YFactor) is short-" +"hand for ST_Affine(geomA, XFactor, 0, 0, 0, YFactor, 0, 0, 0, 1, " +"deltaX*XFactor, deltaY*YFactor, 0)." +msgstr "" + +#. Tag: programlisting +#: reference_editor.xml:1496 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_TransScale(ST_GeomFromEWKT('LINESTRING(1 2 3, 1 1 1)'), " +"0.5, 1, 1, 2));\n" +" st_asewkt\n" +"-----------------------------\n" +" LINESTRING(1.5 6 3,1.5 4 1)\n" +"\n" +"\n" +"--Buffer a point to get an approximation of a circle, convert to curve and " +"then translate 1,2 and scale it 3,4\n" +" SELECT ST_AsText(ST_Transscale(ST_LineToCurve(ST_Buffer('POINT(234 567)', " +"3)),1,2,3,4));\n" +" st_astext\n" +"------------------------------------------------------------------------------------------------------------------------------\n" +" CURVEPOLYGON(CIRCULARSTRING(714 2276,711.363961030679 2267.51471862576,705 " +"2264,698.636038969321 2284.48528137424,714 2276))" +msgstr "" + +#. Tag: para +#: reference_editor.xml:1503 +#, no-c-format +msgid ", " +msgstr "" diff --git a/doc/po/it_IT/reference_exception.xml.po b/doc/po/it_IT/reference_exception.xml.po new file mode 100644 index 000000000..6185aa48b --- /dev/null +++ b/doc/po/it_IT/reference_exception.xml.po @@ -0,0 +1,224 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_exception.xml:3 +#, no-c-format +msgid "Exceptional Functions" +msgstr "" + +#. Tag: para +#: reference_exception.xml:4 +#, no-c-format +msgid "" +"These functions are rarely used functions that should only be used if your " +"data is corrupted in someway. They are used for troubleshooting corruption " +"and also fixing things that should under normal circumstances, never happen." +msgstr "" + +#. Tag: refname +#: reference_exception.xml:9 +#, no-c-format +msgid "PostGIS_AddBBox" +msgstr "" + +#. Tag: refpurpose +#: reference_exception.xml:11 +#, no-c-format +msgid "Add bounding box to the geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_exception.xml:16 +#, no-c-format +msgid "" +"geometry PostGIS_AddBBox " +"geometry geomA" +msgstr "" + +#. Tag: title +#: reference_exception.xml:24 reference_exception.xml:70 +#: reference_exception.xml:119 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_exception.xml:26 +#, no-c-format +msgid "" +"Add bounding box to the geometry. This would make bounding box based queries " +"faster, but will increase the size of the geometry." +msgstr "" + +#. Tag: para +#: reference_exception.xml:31 +#, no-c-format +msgid "" +"Bounding boxes are automatically added to geometries so in general this is " +"not needed unless the generated bounding box somehow becomes corrupted or " +"you have an old install that is lacking bounding boxes. Then you need to " +"drop the old and readd." +msgstr "" + +#. Tag: para +#: reference_exception.xml:35 reference_exception.xml:83 +#: reference_exception.xml:124 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: title +#: reference_exception.xml:40 reference_exception.xml:88 +#: reference_exception.xml:129 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_exception.xml:42 +#, no-c-format +msgid "" +"UPDATE sometable\n" +" SET the_geom = PostGIS_AddBBox(the_geom)\n" +" WHERE PostGIS_HasBBox(the_geom) = false;" +msgstr "" + +#. Tag: title +#: reference_exception.xml:47 reference_exception.xml:95 +#: reference_exception.xml:136 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_exception.xml:49 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_exception.xml:55 +#, no-c-format +msgid "PostGIS_DropBBox" +msgstr "" + +#. Tag: refpurpose +#: reference_exception.xml:57 +#, no-c-format +msgid "Drop the bounding box cache from the geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_exception.xml:62 +#, no-c-format +msgid "" +"geometry PostGIS_DropBBox " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_exception.xml:72 +#, no-c-format +msgid "" +"Drop the bounding box cache from the geometry. This reduces geometry size, " +"but makes bounding-box based queries slower. It is also used to drop a " +"corrupt bounding box. A tale-tell sign of a corrupt cached bounding box is " +"when your ST_Intersects and other relation queries leave out geometries that " +"rightfully should return true." +msgstr "" + +#. Tag: para +#: reference_exception.xml:77 +#, no-c-format +msgid "" +"Bounding boxes are automatically added to geometries and improve speed of " +"queries so in general this is not needed unless the generated bounding box " +"somehow becomes corrupted or you have an old install that is lacking " +"bounding boxes. Then you need to drop the old and readd. This kind of " +"corruption has been observed in 8.3-8.3.6 series whereby cached bboxes were " +"not always recalculated when a geometry changed and upgrading to a newer " +"version without a dump reload will not correct already corrupted boxes. So " +"one can manually correct using below and readd the bbox or do a dump reload." +msgstr "" + +#. Tag: programlisting +#: reference_exception.xml:90 +#, no-c-format +msgid "" +"--This example drops bounding boxes where the cached box is not correct\n" +" --The force to ST_AsBinary before applying Box2D " +"forces a recalculation of the box, and Box2D applied to the table geometry " +"always\n" +" -- returns the cached bounding box.\n" +" UPDATE sometable\n" +" SET the_geom = PostGIS_DropBBox(the_geom)\n" +" WHERE Not (Box2D(ST_AsBinary(the_geom)) = Box2D(the_geom));\n" +"\n" +" UPDATE sometable\n" +" SET the_geom = PostGIS_AddBBox(the_geom)\n" +" WHERE Not PostGIS_HasBBOX(the_geom);" +msgstr "" + +#. Tag: para +#: reference_exception.xml:97 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_exception.xml:104 +#, no-c-format +msgid "PostGIS_HasBBox" +msgstr "" + +#. Tag: refpurpose +#: reference_exception.xml:106 +#, no-c-format +msgid "Returns TRUE if the bbox of this geometry is cached, FALSE otherwise." +msgstr "" + +#. Tag: funcprototype +#: reference_exception.xml:111 +#, no-c-format +msgid "" +"boolean PostGIS_HasBBox " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_exception.xml:121 +#, no-c-format +msgid "" +"Returns TRUE if the bbox of this geometry is cached, FALSE otherwise. Use " +" and " +"to control caching." +msgstr "" + +#. Tag: programlisting +#: reference_exception.xml:131 +#, no-c-format +msgid "" +"SELECT the_geom\n" +"FROM sometable WHERE PostGIS_HasBBox(the_geom) = false;" +msgstr "" + +#. Tag: para +#: reference_exception.xml:138 +#, no-c-format +msgid ", " +msgstr "" diff --git a/doc/po/it_IT/reference_lrs.xml.po b/doc/po/it_IT/reference_lrs.xml.po new file mode 100644 index 000000000..ee87a47f1 --- /dev/null +++ b/doc/po/it_IT/reference_lrs.xml.po @@ -0,0 +1,778 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_lrs.xml:3 +#, no-c-format +msgid "Linear Referencing" +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:7 +#, no-c-format +msgid "ST_Line_Interpolate_Point" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:9 +#, no-c-format +msgid "" +"Returns a point interpolated along a line. Second argument is a float8 " +"between 0 and 1 representing fraction of total length of linestring the " +"point has to be located." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:15 +#, no-c-format +msgid "" +"geometry ST_Line_Interpolate_Point " +"geometry a_linestring float a_fraction" +msgstr "" + +#. Tag: title +#: reference_lrs.xml:24 reference_lrs.xml:85 reference_lrs.xml:136 +#: reference_lrs.xml:202 reference_lrs.xml:260 reference_lrs.xml:311 +#: reference_lrs.xml:356 reference_lrs.xml:400 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:26 +#, no-c-format +msgid "" +"Returns a point interpolated along a line. First argument must be a " +"LINESTRING. Second argument is a float8 between 0 and 1 representing " +"fraction of total linestring length the point has to be located." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:30 reference_lrs.xml:147 +#, no-c-format +msgid "" +"See for computing the line location " +"nearest to a Point." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:34 +#, no-c-format +msgid "" +"Since release 1.1.1 this function also interpolates M and Z values (when " +"present), while prior releases set them to 0.0." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:38 +#, no-c-format +msgid "Availability: 0.8.2, Z and M supported added in 1.1.1" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:39 reference_lrs.xml:157 reference_lrs.xml:319 +#: reference_lrs.xml:362 reference_lrs.xml:406 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: title +#: reference_lrs.xml:44 reference_lrs.xml:101 reference_lrs.xml:161 +#: reference_lrs.xml:225 reference_lrs.xml:276 reference_lrs.xml:323 +#: reference_lrs.xml:366 reference_lrs.xml:410 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:50 +#, no-c-format +msgid "A linestring with the interpolated point at 20% position (0.20)" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:53 +#, no-c-format +msgid "" +"--Return point 20% along 2d line\n" +"SELECT ST_AsEWKT(ST_Line_Interpolate_Point(the_line, 0.20))\n" +" FROM (SELECT ST_GeomFromEWKT('LINESTRING(25 50, 100 125, 150 190)') " +"as the_line) As foo;\n" +" st_asewkt\n" +"----------------\n" +" POINT(51.5974135047432 76.5974135047432)" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:54 +#, no-c-format +msgid "" +"--Return point mid-way of 3d line\n" +"SELECT ST_AsEWKT(ST_Line_Interpolate_Point(the_line, 0.5))\n" +" FROM (SELECT ST_GeomFromEWKT('LINESTRING(1 2 3, 4 5 6, 6 7 8)') as " +"the_line) As foo;\n" +"\n" +" st_asewkt\n" +"--------------------\n" +" POINT(3.5 4.5 5.5)\n" +"\n" +"\n" +"--find closest point on a line to a point or other geometry\n" +" SELECT ST_AsText(ST_Line_Interpolate_Point(foo.the_line, " +"ST_Line_Locate_Point(foo.the_line, ST_GeomFromText('POINT(4 3)'))))\n" +"FROM (SELECT ST_GeomFromText('LINESTRING(1 2, 4 5, 6 7)') As the_line) As " +"foo;\n" +" st_astext\n" +"----------------\n" +" POINT(3 4)" +msgstr "" + +#. Tag: title +#: reference_lrs.xml:59 reference_lrs.xml:108 reference_lrs.xml:175 +#: reference_lrs.xml:231 reference_lrs.xml:283 reference_lrs.xml:330 +#: reference_lrs.xml:372 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:61 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:67 +#, no-c-format +msgid "ST_Line_Locate_Point" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:69 +#, no-c-format +msgid "" +"Returns a float between 0 and 1 representing the location of the closest " +"point on LineString to the given Point, as a fraction of total 2d line " +"length." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:76 +#, no-c-format +msgid "" +"float ST_Line_Locate_Point " +"geometry a_linestring geometry a_point" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:87 +#, no-c-format +msgid "" +"Returns a float between 0 and 1 representing the location of the closest " +"point on LineString to the given Point, as a fraction of total 2d line length." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:91 +#, no-c-format +msgid "" +"You can use the returned location to extract a Point () or a substring ()." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:94 +#, no-c-format +msgid "This is useful for approximating numbers of addresses" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:96 +#, no-c-format +msgid "Availability: 1.1.0" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:103 +#, no-c-format +msgid "" +"--Rough approximation of finding the street number of a point along the " +"street\n" +"--Note the whole foo thing is just to generate dummy data that looks\n" +"--like house centroids and street\n" +"--We use ST_DWithin to exclude\n" +"--houses too far away from the street to be considered on the street\n" +"SELECT ST_AsText(house_loc) As as_text_house_loc,\n" +" startstreet_num +\n" +" CAST( (endstreet_num - startstreet_num)\n" +" * ST_Line_Locate_Point(street_line, house_loc) As " +"integer) As street_num\n" +"FROM\n" +"(SELECT ST_GeomFromText('LINESTRING(1 2, 3 4)') As street_line,\n" +" ST_MakePoint(x*1.01,y*1.03) As house_loc, 10 As startstreet_num,\n" +" 20 As endstreet_num\n" +"FROM generate_series(1,3) x CROSS JOIN generate_series(2,4) As y)\n" +"As foo\n" +"WHERE ST_DWithin(street_line, house_loc, 0.2);\n" +"\n" +" as_text_house_loc | street_num\n" +"-------------------+------------\n" +" POINT(1.01 2.06) | 10\n" +" POINT(2.02 3.09) | 15\n" +" POINT(3.03 4.12) | 20\n" +"\n" +" --find closest point on a line to a point or other geometry\n" +" SELECT ST_AsText(ST_Line_Interpolate_Point(foo.the_line, " +"ST_Line_Locate_Point(foo.the_line, ST_GeomFromText('POINT(4 3)'))))\n" +"FROM (SELECT ST_GeomFromText('LINESTRING(1 2, 4 5, 6 7)') As the_line) As " +"foo;\n" +" st_astext\n" +"----------------\n" +" POINT(3 4)" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:110 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:116 +#, no-c-format +msgid "ST_Line_Substring" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:118 +#, no-c-format +msgid "" +"Return a linestring being a substring of the input one starting and ending " +"at the given fractions of total 2d length. Second and third arguments are " +"float8 values between 0 and 1." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:126 +#, no-c-format +msgid "" +"geometry ST_Line_Substring " +"geometry a_linestring float startfraction float endfraction" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:138 +#, no-c-format +msgid "" +"Return a linestring being a substring of the input one starting and ending " +"at the given fractions of total 2d length. Second and third arguments are " +"float8 values between 0 and 1. This only works with LINESTRINGs. To use with " +"contiguous MULTILINESTRINGs use in conjunction with ." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:144 +#, no-c-format +msgid "" +"If 'start' and 'end' have the same value this is equivalent to ." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:151 +#, no-c-format +msgid "" +"Since release 1.1.1 this function also interpolates M and Z values (when " +"present), while prior releases set them to unspecified values." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:156 +#, no-c-format +msgid "Availability: 1.1.0, Z and M supported added in 1.1.1" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:167 +#, no-c-format +msgid "A linestring seen with 1/3 midrange overlaid (0.333, 0.666)" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:170 +#, no-c-format +msgid "" +"--Return the approximate 1/3 mid-range part of a linestring\n" +"SELECT ST_AsText(ST_Line_SubString(ST_GeomFromText('LINESTRING(25 50, 100 " +"125, 150 190)'), 0.333, 0.666));\n" +"\n" +" st_astext\n" +"------------------------------------------------------------------------------------------------\n" +"LINESTRING(69.2846934853974 94.2846934853974,100 125,111.700356260683 " +"140.210463138888)\n" +"\n" +"--The below example simulates a while loop in\n" +"--SQL using PostgreSQL generate_series() to cut all\n" +"--linestrings in a table to 100 unit segments\n" +"-- of which no segment is longer than 100 units\n" +"-- units are measured in the SRID units of measurement\n" +"-- It also assumes all geometries are LINESTRING or contiguous " +"MULTILINESTRING\n" +"--and no geometry is longer than 100 units*10000\n" +"--for better performance you can reduce the 10000\n" +"--to match max number of segments you expect\n" +"\n" +"SELECT field1, field2, ST_Line_Substring(the_geom, 100.00*n/length,\n" +" CASE\n" +" WHEN 100.00*(n+1) < length THEN 100.00*(n+1)/length\n" +" ELSE 1\n" +" END) As the_geom\n" +"FROM\n" +" (SELECT sometable.field1, sometable.field2,\n" +" ST_LineMerge(sometable.the_geom) AS the_geom,\n" +" ST_Length(sometable.the_geom) As length\n" +" FROM sometable\n" +" ) AS t\n" +"CROSS JOIN generate_series(0,10000) AS n\n" +"WHERE n*100.00/length < 1;" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:177 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:183 +#, no-c-format +msgid "ST_LocateAlong" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:185 +#, no-c-format +msgid "" +"Return a derived geometry collection value with elements that " +"match the specified measure. Polygonal elements are not supported." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:192 +#, no-c-format +msgid "" +"geometry ST_LocateAlong " +"geometry ageom_with_measure float a_measure float offset" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:204 +#, no-c-format +msgid "" +"Return a derived geometry collection value with elements that match " +"the specified measure. Polygonal elements are not supported." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:208 +#, no-c-format +msgid "" +"If an offset is provided, the resultant will be offset to the left or right " +"of the input line by the specified number of units. A positive offset will " +"be to the left, and a negative one to the right." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:213 reference_lrs.xml:266 +#, no-c-format +msgid "" +"Semantic is specified by: ISO/IEC CD 13249-3:200x(E) - Text for Continuation " +"CD Editing Meeting" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:216 +#, no-c-format +msgid "Availability: 1.1.0 by old name ST_Locate_Along_Measure." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:217 +#, no-c-format +msgid "" +"Changed: 2.0.0 in prior versions this used to be called " +"ST_Locate_Along_Measure. The old name has been deprecated and will be " +"removed in the future but is still available." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:218 +#, no-c-format +msgid "Use this function only for geometries with an M component" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:220 reference_lrs.xml:272 +#, no-c-format +msgid "&M_support;" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:226 +#, no-c-format +msgid "" +"SELECT ST_AsText(the_geom)\n" +" FROM\n" +" (SELECT ST_LocateAlong(\n" +" ST_GeomFromText('MULTILINESTRINGM((1 2 3, 3 4 2, 9 4 " +"3),\n" +" (1 2 3, 5 4 5))'),3) As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"-----------------------------------------------------------\n" +" MULTIPOINT M (1 2 3)\n" +"\n" +"--Geometry collections are difficult animals so dump them\n" +"--to make them more digestable\n" +"SELECT ST_AsText((ST_Dump(the_geom)).geom)\n" +" FROM\n" +" (SELECT ST_LocateAlong(\n" +" ST_GeomFromText('MULTILINESTRINGM((1 2 3, 3 4 2, 9 4 " +"3),\n" +" (1 2 3, 5 4 5))'),3) As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"---------------\n" +" POINTM(1 2 3)\n" +" POINTM(9 4 3)\n" +" POINTM(1 2 3)" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:233 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:239 +#, no-c-format +msgid "ST_LocateBetween" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:241 +#, no-c-format +msgid "" +"Return a derived geometry collection value with elements that " +"match the specified range of measures inclusively. Polygonal elements are " +"not supported." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:248 +#, no-c-format +msgid "" +"geometry ST_LocateBetween " +"geometry geomA " +"float measure_start float measure_end float offset" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:262 +#, no-c-format +msgid "" +"Return a derived geometry collection value with elements that match " +"the specified range of measures inclusively. Polygonal elements are not " +"supported." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:269 +#, no-c-format +msgid "Availability: 1.1.0 by old name ST_Locate_Between_Measures." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:270 +#, no-c-format +msgid "" +"Changed: 2.0.0 - in prior versions this used to be called " +"ST_Locate_Between_Measures. The old name has been deprecated and will be " +"removed in the future but is still available for backward compatibility." +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:278 +#, no-c-format +msgid "" +"SELECT ST_AsText(the_geom)\n" +" FROM\n" +" (SELECT ST_LocateBetween(\n" +" ST_GeomFromText('MULTILINESTRING M ((1 2 3, 3 4 2, 9 " +"4 3),\n" +" (1 2 3, 5 4 5))'),1.5, 3) As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"------------------------------------------------------------------------\n" +" GEOMETRYCOLLECTION M (LINESTRING M (1 2 3,3 4 2,9 4 3),POINT M (1 2 3))\n" +"\n" +"--Geometry collections are difficult animals so dump them\n" +"--to make them more digestable\n" +"SELECT ST_AsText((ST_Dump(the_geom)).geom)\n" +" FROM\n" +" (SELECT ST_LocateBetween(\n" +" ST_GeomFromText('MULTILINESTRING M ((1 2 3, 3 4 2, 9 " +"4 3),\n" +" (1 2 3, 5 4 5))'),1.5, 3) As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"--------------------------------\n" +" LINESTRING M (1 2 3,3 4 2,9 4 3)\n" +" POINT M (1 2 3)" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:285 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:291 +#, no-c-format +msgid "ST_LocateBetweenElevations" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:293 +#, no-c-format +msgid "" +"Return a derived geometry (collection) value with elements that intersect " +"the specified range of elevations inclusively. Only 3D, 4D LINESTRINGS and " +"MULTILINESTRINGS are supported." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:300 +#, no-c-format +msgid "" +"geometry ST_LocateBetweenElevations " +"geometry geom_mline float elevation_start float " +"elevation_end" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:313 +#, no-c-format +msgid "" +"Return a derived geometry (collection) value with elements that intersect " +"the specified range of elevations inclusively. Only 3D, 3DM LINESTRINGS and " +"MULTILINESTRINGS are supported." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:317 +#, no-c-format +msgid "Availability: 1.4.0" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:325 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_LocateBetweenElevations(\n" +" ST_GeomFromEWKT('LINESTRING(1 2 3, 4 5 6)'),2,4)) As " +"ewelev;\n" +" ewelev\n" +"----------------------------------------------------------------\n" +" MULTILINESTRING((1 2 3,2 3 4))\n" +"\n" +"SELECT ST_AsEWKT(ST_LocateBetweenElevations(\n" +" ST_GeomFromEWKT('LINESTRING(1 2 6, 4 5 -1, 7 8 " +"9)'),6,9)) As ewelev;\n" +"\n" +" ewelev\n" +"----------------------------------------------------------------\n" +"GEOMETRYCOLLECTION(POINT(1 2 6),LINESTRING(6.1 7.1 6,7 8 9))\n" +"\n" +"--Geometry collections are difficult animals so dump them\n" +"--to make them more digestable\n" +"SELECT ST_AsEWKT((ST_Dump(the_geom)).geom)\n" +" FROM\n" +" (SELECT ST_LocateBetweenElevations(\n" +" ST_GeomFromEWKT('LINESTRING(1 2 6, 4 5 -1, 7 8 " +"9)'),6,9) As the_geom) As foo;\n" +"\n" +" st_asewkt\n" +"--------------------------------\n" +"POINT(1 2 6)\n" +"LINESTRING(6.1 7.1 6,7 8 9)" +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:339 +#, no-c-format +msgid "ST_InterpolatePoint" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:341 +#, no-c-format +msgid "" +"Return the value of the measure dimension of a geometry at the " +"point closed to the provided point." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:346 +#, no-c-format +msgid "" +"float ST_InterpolatePoint " +"geometry line " +"geometry point" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:358 +#, no-c-format +msgid "" +"Return the value of the measure dimension of a geometry at the point " +"closed to the provided point." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:360 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:368 +#, no-c-format +msgid "" +"SELECT ST_InterpolatePoint('LINESTRING M (0 0 0, 10 0 20)', 'POINT(5 5)');\n" +" st_interpolatepoint \n" +" ---------------------\n" +" 10" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:374 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_lrs.xml:382 +#, no-c-format +msgid "ST_AddMeasure" +msgstr "" + +#. Tag: refpurpose +#: reference_lrs.xml:384 +#, no-c-format +msgid "" +"Return a derived geometry with measure elements linearly " +"interpolated between the start and end points. If the geometry has no " +"measure dimension, one is added. If the geometry has a measure dimension, it " +"is over-written with new values. Only LINESTRINGS and MULTILINESTRINGS are " +"supported." +msgstr "" + +#. Tag: funcprototype +#: reference_lrs.xml:389 +#, no-c-format +msgid "" +"geometry ST_AddMeasure " +"geometry geom_mline float measure_start float measure_end" +msgstr "" + +#. Tag: para +#: reference_lrs.xml:402 +#, no-c-format +msgid "" +"Return a derived geometry with measure elements linearly interpolated " +"between the start and end points. If the geometry has no measure dimension, " +"one is added. If the geometry has a measure dimension, it is over-written " +"with new values. Only LINESTRINGS and MULTILINESTRINGS are supported." +msgstr "" + +#. Tag: para +#: reference_lrs.xml:404 +#, no-c-format +msgid "Availability: 1.5.0" +msgstr "" + +#. Tag: programlisting +#: reference_lrs.xml:412 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_AddMeasure(\n" +"ST_GeomFromEWKT('LINESTRING(1 0, 2 0, 4 0)'),1,4)) As ewelev;\n" +" ewelev \n" +"--------------------------------\n" +" LINESTRINGM(1 0 1,2 0 2,4 0 4)\n" +"\n" +"SELECT ST_AsText(ST_AddMeasure(\n" +"ST_GeomFromEWKT('LINESTRING(1 0 4, 2 0 4, 4 0 4)'),10,40)) As ewelev;\n" +" ewelev \n" +"----------------------------------------\n" +" LINESTRING(1 0 4 10,2 0 4 20,4 0 4 40)\n" +"\n" +"SELECT ST_AsText(ST_AddMeasure(\n" +"ST_GeomFromEWKT('LINESTRINGM(1 0 4, 2 0 4, 4 0 4)'),10,40)) As ewelev;\n" +" ewelev \n" +"----------------------------------------\n" +" LINESTRINGM(1 0 10,2 0 20,4 0 40)\n" +" \n" +"SELECT ST_AsText(ST_AddMeasure(\n" +"ST_GeomFromEWKT('MULTILINESTRINGM((1 0 4, 2 0 4, 4 0 4),(1 0 4, 2 0 4, 4 0 " +"4))'),10,70)) As ewelev;\n" +" ewelev \n" +"-----------------------------------------------------------------\n" +" MULTILINESTRINGM((1 0 10,2 0 20,4 0 40),(1 0 40,2 0 50,4 0 70))" +msgstr "" diff --git a/doc/po/it_IT/reference_management.xml.po b/doc/po/it_IT/reference_management.xml.po new file mode 100644 index 000000000..1cc7153bf --- /dev/null +++ b/doc/po/it_IT/reference_management.xml.po @@ -0,0 +1,1143 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_management.xml:3 +#, no-c-format +msgid "Management Functions" +msgstr "" + +#. Tag: refname +#: reference_management.xml:7 +#, no-c-format +msgid "AddGeometryColumn" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:9 +#, no-c-format +msgid "" +"Adds a geometry column to an existing table of attributes. By default uses " +"type modifier to define rather than constraints. Pass in false for " +"use_typmod to get old check constraint based behavior" +msgstr "" + +#. Tag: funcsynopsis +#: reference_management.xml:15 +#, no-c-format +msgid "" +" text AddGeometryColumn varchar table_name varchar column_name integer srid varchar type integer dimension boolean " +"use_typmod=true " +" text AddGeometryColumn varchar schema_name varchar table_name varchar column_name integer srid varchar type integer dimension boolean " +"use_typmod=true " +" text AddGeometryColumn varchar catalog_name varchar " +"schema_name varchar table_name varchar column_name integer " +" srid varchar type integer " +"dimension boolean use_typmod=true " +msgstr "" + +#. Tag: title +#: reference_management.xml:92 reference_management.xml:188 +#: reference_management.xml:254 reference_management.xml:298 +#: reference_management.xml:344 reference_management.xml:386 +#: reference_management.xml:427 reference_management.xml:458 +#: reference_management.xml:499 reference_management.xml:540 +#: reference_management.xml:583 reference_management.xml:631 +#: reference_management.xml:677 reference_management.xml:726 +#: reference_management.xml:862 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_management.xml:94 +#, no-c-format +msgid "" +"Adds a geometry column to an existing table of attributes. The " +"schema_name is the name of the table schema. The " +"srid must be an integer value reference to an entry in " +"the SPATIAL_REF_SYS table. The type must be a string " +"corresponding to the geometry type, eg, 'POLYGON' or 'MULTILINESTRING' . An " +"error is thrown if the schemaname doesn't exist (or not visible in the " +"current search_path) or the specified SRID, geometry type, or dimension is " +"invalid." +msgstr "" + +#. Tag: para +#: reference_management.xml:104 +#, no-c-format +msgid "" +"Changed: 2.0.0 This function no longer updates geometry_columns since " +"geometry_columns is a view that reads from system catalogs. It by default " +"also does not create constraints, but instead uses the built in type " +"modifier behavior of PostgreSQL. So for example building a wgs84 POINT " +"column with this function is now equivalent to: ALTER TABLE some_table " +"ADD COLUMN geom geometry(Point,4326);" +msgstr "" + +#. Tag: para +#: reference_management.xml:107 +#, no-c-format +msgid "" +"Changed: 2.0.0 If you require the old behavior of constraints use the " +"default use_typmod, but set it to false." +msgstr "" + +#. Tag: para +#: reference_management.xml:111 +#, no-c-format +msgid "" +"Changed: 2.0.0 Views can no longer be manually registered in " +"geometry_columns, however views built against geometry typmod tables " +"geometries and used without wrapper functions will register themselves " +"correctly because they inherit the typmod behavior of their parent table " +"column. Views that use geometry functions that output other geometries will " +"need to be cast to typmod geometries for these view geometry columns to be " +"registered correctly in geometry_columns. Refer to ." +msgstr "" + +#. Tag: para +#: reference_management.xml:117 reference_management.xml:194 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_management.xml:118 reference_management.xml:195 +#: reference_management.xml:868 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_management.xml:119 reference_management.xml:196 +#: reference_management.xml:869 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: para +#: reference_management.xml:120 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 use_typmod argument introduced. Defaults to creating typmod " +"geometry column instead of constraint-based." +msgstr "" + +#. Tag: title +#: reference_management.xml:124 reference_management.xml:203 +#: reference_management.xml:267 reference_management.xml:306 +#: reference_management.xml:351 reference_management.xml:393 +#: reference_management.xml:433 reference_management.xml:464 +#: reference_management.xml:506 reference_management.xml:548 +#: reference_management.xml:600 reference_management.xml:646 +#: reference_management.xml:683 reference_management.xml:784 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:126 +#, no-c-format +msgid "" +"-- Create schema to hold data\n" +"CREATE SCHEMA my_schema;\n" +"-- Create a new simple PostgreSQL table\n" +"CREATE TABLE my_schema.my_spatial_table (id serial);\n" +"\n" +"-- Describing the table shows a simple table with a single \"id\" column.\n" +"postgis=# \\d my_schema.my_spatial_table\n" +" Table \"my_schema." +"my_spatial_table\"\n" +" Column | Type | Modifiers\n" +"--------+---------" +"+-------------------------------------------------------------------------\n" +" id | integer | not null default nextval('my_schema." +"my_spatial_table_id_seq'::regclass)\n" +"\n" +"-- Add a spatial column to the table\n" +"SELECT AddGeometryColumn " +"('my_schema','my_spatial_table','geom',4326,'POINT',2);\n" +"\n" +"-- Add a point using the old constraint based behavior\n" +"SELECT AddGeometryColumn " +"('my_schema','my_spatial_table','geom_c',4326,'POINT',2, false);\n" +"\n" +"--Add a curvepolygon using old constraint behavior\n" +"SELECT AddGeometryColumn " +"('my_schema','my_spatial_table','geomcp_c',4326,'CURVEPOLYGON',2, false);\n" +"\n" +"-- Describe the table again reveals the addition of a new geometry columns.\n" +"\\d my_schema.my_spatial_table\n" +" addgeometrycolumn \n" +"-------------------------------------------------------------------------\n" +" my_schema.my_spatial_table.geomcp_c SRID:4326 TYPE:CURVEPOLYGON DIMS:2 \n" +"(1 row)\n" +"\n" +" Table \"my_schema.my_spatial_table\"\n" +" Column | Type | " +"Modifiers \n" +"----------+----------------------" +"+-------------------------------------------------------------------------\n" +" id | integer | not null default nextval('my_schema." +"my_spatial_table_id_seq'::regclass)\n" +" geom | geometry(Point,4326) | \n" +" geom_c | geometry | \n" +" geomcp_c | geometry | \n" +"Check constraints:\n" +" \"enforce_dims_geom_c\" CHECK (st_ndims(geom_c) = 2)\n" +" \"enforce_dims_geomcp_c\" CHECK (st_ndims(geomcp_c) = 2)\n" +" \"enforce_geotype_geom_c\" CHECK (geometrytype(geom_c) = 'POINT'::text " +"OR geom_c IS NULL)\n" +" \"enforce_geotype_geomcp_c\" CHECK (geometrytype(geomcp_c) = " +"'CURVEPOLYGON'::text OR geomcp_c IS NULL)\n" +" \"enforce_srid_geom_c\" CHECK (st_srid(geom_c) = 4326)\n" +" \"enforce_srid_geomcp_c\" CHECK (st_srid(geomcp_c) = 4326)\n" +" \n" +"-- geometry_columns view also registers the new columns --\n" +"SELECT f_geometry_column As col_name, type, srid, coord_dimension As ndims \n" +" FROM geometry_columns\n" +" WHERE f_table_name = 'my_spatial_table' AND f_table_schema = " +"'my_schema';\n" +"\n" +" col_name | type | srid | ndims \n" +"----------+--------------+------+-------\n" +" geom | Point | 4326 | 2\n" +" geom_c | Point | 4326 | 2\n" +" geomcp_c | CurvePolygon | 4326 | 2" +msgstr "" + +#. Tag: title +#: reference_management.xml:130 reference_management.xml:208 +#: reference_management.xml:272 reference_management.xml:312 +#: reference_management.xml:357 reference_management.xml:399 +#: reference_management.xml:470 reference_management.xml:512 +#: reference_management.xml:554 reference_management.xml:606 +#: reference_management.xml:652 reference_management.xml:689 +#: reference_management.xml:873 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_management.xml:132 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:138 +#, no-c-format +msgid "DropGeometryColumn" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:140 +#, no-c-format +msgid "Removes a geometry column from a spatial table." +msgstr "" + +#. Tag: funcsynopsis +#: reference_management.xml:145 +#, no-c-format +msgid "" +" text DropGeometryColumn varchar table_name varchar column_name text " +"DropGeometryColumn varchar schema_name varchar " +" table_name varchar " +" column_name " +" text DropGeometryColumn varchar catalog_name varchar " +"schema_name varchar table_name varchar column_name " +msgstr "" + +#. Tag: para +#: reference_management.xml:190 +#, no-c-format +msgid "" +"Removes a geometry column from a spatial table. Note that schema_name will " +"need to match the f_table_schema field of the table's row in the " +"geometry_columns table." +msgstr "" + +#. Tag: para +#: reference_management.xml:198 +#, no-c-format +msgid "" +"Changed: 2.0.0 This function is provided for backward compatibility. Now " +"that since geometry_columns is now a view against the system catalogs, you " +"can drop a geometry column like any other table column using ALTER " +"TABLE" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:205 +#, no-c-format +msgid "" +"SELECT DropGeometryColumn ('my_schema','my_spatial_table','geom');\n" +" ----RESULT output ---\n" +" dropgeometrycolumn\n" +"------------------------------------------------------\n" +" my_schema.my_spatial_table.geom effectively removed.\n" +" \n" +"-- In PostGIS 2.0+ the above is also equivalent to the standard\n" +"-- the standard alter table. Both will deregister from geometry_columns\n" +"ALTER TABLE my_schema.my_spatial_table DROP column geom;" +msgstr "" + +#. Tag: para +#: reference_management.xml:210 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:216 +#, no-c-format +msgid "DropGeometryTable" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:218 +#, no-c-format +msgid "Drops a table and all its references in geometry_columns." +msgstr "" + +#. Tag: funcsynopsis +#: reference_management.xml:223 +#, no-c-format +msgid "" +" boolean DropGeometryTable varchar table_name boolean " +"DropGeometryTable varchar schema_name varchar " +" table_name " +" boolean DropGeometryTable varchar catalog_name varchar " +"schema_name varchar table_name " +msgstr "" + +#. Tag: para +#: reference_management.xml:256 +#, no-c-format +msgid "" +"Drops a table and all its references in geometry_columns. Note: uses " +"current_schema() on schema-aware pgsql installations if schema is not " +"provided." +msgstr "" + +#. Tag: para +#: reference_management.xml:261 +#, no-c-format +msgid "" +"Changed: 2.0.0 This function is provided for backward compatibility. Now " +"that since geometry_columns is now a view against the system catalogs, you " +"can drop a table with geometry columns like any other table using DROP " +"TABLE" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:269 +#, no-c-format +msgid "" +"SELECT DropGeometryTable ('my_schema','my_spatial_table');\n" +"----RESULT output ---\n" +"my_schema.my_spatial_table dropped.\n" +" \n" +"-- The above is now equivalent to --\n" +"DROP TABLE my_schema.my_spatial_table;" +msgstr "" + +#. Tag: para +#: reference_management.xml:274 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:281 +#, no-c-format +msgid "PostGIS_Full_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:283 +#, no-c-format +msgid "Reports full postgis version and build configuration infos." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:289 +#, no-c-format +msgid "" +"text PostGIS_Full_Version " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:300 +#, no-c-format +msgid "" +"Reports full postgis version and build configuration infos. Also informs " +"about synchronization between libraries and scripts suggesting upgrades as " +"needed." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:308 +#, no-c-format +msgid "" +"SELECT PostGIS_Full_Version();\n" +" postgis_full_version\n" +"----------------------------------------------------------------------------------\n" +" POSTGIS=\"1.3.3\" GEOS=\"3.1.0-CAPI-1.5.0\" PROJ=\"Rel. 4.4.9, 29 Oct " +"2004\" USE_STATS\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:314 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:327 +#, no-c-format +msgid "PostGIS_GEOS_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:329 +#, no-c-format +msgid "Returns the version number of the GEOS library." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:335 +#, no-c-format +msgid "" +"text PostGIS_GEOS_Version " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:346 +#, no-c-format +msgid "" +"Returns the version number of the GEOS library, or NULL " +"if GEOS support is not enabled." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:353 +#, no-c-format +msgid "" +"SELECT PostGIS_GEOS_Version();\n" +" postgis_geos_version\n" +"----------------------\n" +" 3.1.0-CAPI-1.5.0\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:359 +#, no-c-format +msgid "" +", , , , " +"" +msgstr "" + +#. Tag: refname +#: reference_management.xml:369 +#, no-c-format +msgid "PostGIS_LibXML_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:371 +#, no-c-format +msgid "Returns the version number of the libxml2 library." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:377 +#, no-c-format +msgid "" +"text PostGIS_LibXML_Version " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:388 +#, no-c-format +msgid "Returns the version number of the LibXML2 library." +msgstr "" + +#. Tag: para +#: reference_management.xml:389 +#, no-c-format +msgid "Availability: 1.5" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:395 +#, no-c-format +msgid "" +"SELECT PostGIS_LibXML_Version();\n" +" postgis_libxml_version\n" +"----------------------\n" +" 2.7.6\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:401 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:411 +#, no-c-format +msgid "PostGIS_Lib_Build_Date" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:413 +#, no-c-format +msgid "Returns build date of the PostGIS library." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:418 +#, no-c-format +msgid "" +"text PostGIS_Lib_Build_Date " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:429 +#, no-c-format +msgid "Returns build date of the PostGIS library." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:435 +#, no-c-format +msgid "" +"SELECT PostGIS_Lib_Build_Date();\n" +" postgis_lib_build_date\n" +"------------------------\n" +" 2008-06-21 17:53:21\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_management.xml:441 +#, no-c-format +msgid "PostGIS_Lib_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:443 +#, no-c-format +msgid "" +"Returns the version number of the PostGIS library." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:449 +#, no-c-format +msgid "" +"text PostGIS_Lib_Version " +msgstr "" + +#. Tag: para +#: reference_management.xml:460 +#, no-c-format +msgid "Returns the version number of the PostGIS library." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:466 +#, no-c-format +msgid "" +"SELECT PostGIS_Lib_Version();\n" +" postgis_lib_version\n" +"---------------------\n" +" 1.3.3\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:472 +#, no-c-format +msgid "" +", , , , " +"" +msgstr "" + +#. Tag: refname +#: reference_management.xml:482 +#, no-c-format +msgid "PostGIS_PROJ_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:484 +#, no-c-format +msgid "Returns the version number of the PROJ4 library." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:490 +#, no-c-format +msgid "" +"text PostGIS_PROJ_Version " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:501 +#, no-c-format +msgid "" +"Returns the version number of the PROJ4 library, or NULL " +"if PROJ4 support is not enabled." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:508 +#, no-c-format +msgid "" +"SELECT PostGIS_PROJ_Version();\n" +" postgis_proj_version\n" +"-------------------------\n" +" Rel. 4.4.9, 29 Oct 2004\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:514 reference_management.xml:556 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:524 +#, no-c-format +msgid "PostGIS_Scripts_Build_Date" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:526 +#, no-c-format +msgid "Returns build date of the PostGIS scripts." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:531 +#, no-c-format +msgid "" +"text PostGIS_Scripts_Build_Date " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:542 +#, no-c-format +msgid "Returns build date of the PostGIS scripts." +msgstr "" + +#. Tag: para +#: reference_management.xml:544 +#, no-c-format +msgid "Availability: 1.0.0RC1" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:550 +#, no-c-format +msgid "" +"SELECT PostGIS_Scripts_Build_Date();\n" +" postgis_scripts_build_date\n" +"-------------------------\n" +" 2007-08-18 09:09:26\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_management.xml:566 +#, no-c-format +msgid "PostGIS_Scripts_Installed" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:568 +#, no-c-format +msgid "" +"Returns version of the postgis scripts installed in this " +"database." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:574 +#, no-c-format +msgid "" +"text PostGIS_Scripts_Installed " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:585 +#, no-c-format +msgid "" +"Returns version of the postgis scripts installed in this database." +msgstr "" + +#. Tag: para +#: reference_management.xml:589 +#, no-c-format +msgid "" +"If the output of this function doesn't match the output of you probably missed to properly upgrade an " +"existing database. See the Upgrading " +"section for more info." +msgstr "" + +#. Tag: para +#: reference_management.xml:596 reference_management.xml:642 +#, no-c-format +msgid "Availability: 0.9.0" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:602 +#, no-c-format +msgid "" +"SELECT PostGIS_Scripts_Installed();\n" +" postgis_scripts_installed\n" +"-------------------------\n" +" 1.5.0SVN\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:608 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:614 +#, no-c-format +msgid "PostGIS_Scripts_Released" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:616 +#, no-c-format +msgid "" +"Returns the version number of the postgis.sql script released " +"with the installed postgis lib." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:622 +#, no-c-format +msgid "" +"text PostGIS_Scripts_Released " +"" +msgstr "" + +#. Tag: para +#: reference_management.xml:633 +#, no-c-format +msgid "" +"Returns the version number of the postgis.sql script released with the " +"installed postgis lib." +msgstr "" + +#. Tag: para +#: reference_management.xml:637 +#, no-c-format +msgid "" +"Starting with version 1.1.0 this function returns the same value of . Kept for backward compatibility." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:648 +#, no-c-format +msgid "" +"SELECT PostGIS_Scripts_Released();\n" +" postgis_scripts_released\n" +"-------------------------\n" +" 1.3.4SVN\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:654 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:660 +#, no-c-format +msgid "PostGIS_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:662 +#, no-c-format +msgid "" +"Returns PostGIS version number and compile-time options." +msgstr "" + +#. Tag: funcprototype +#: reference_management.xml:668 +#, no-c-format +msgid "" +"text PostGIS_Version " +msgstr "" + +#. Tag: para +#: reference_management.xml:679 +#, no-c-format +msgid "Returns PostGIS version number and compile-time options." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:685 +#, no-c-format +msgid "" +"SELECT PostGIS_Version();\n" +" postgis_version\n" +"---------------------------------------\n" +" 1.3 USE_GEOS=1 USE_PROJ=1 USE_STATS=1\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_management.xml:691 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_management.xml:701 +#, no-c-format +msgid "Populate_Geometry_Columns" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:703 +#, no-c-format +msgid "" +"Ensures geometry columns are defined with type modifiers or have appropriate " +"spatial constraints This ensures they will be registered correctly in " +"geometry_columns view. By default will convert all " +"geometry columns with no type modifier to ones with type modifiers. To get " +"old behavior set use_typmod=false" +msgstr "" + +#. Tag: funcsynopsis +#: reference_management.xml:709 +#, no-c-format +msgid "" +" text Populate_Geometry_Columns boolean " +"use_typmod=true " +" int Populate_Geometry_Columns oid relation_oid boolean use_typmod=true " +msgstr "" + +#. Tag: para +#: reference_management.xml:728 +#, no-c-format +msgid "" +"Ensures geometry columns have appropriate type modifiers or spatial " +"constraints to ensure they are registered correctly in " +"geometry_columns table." +msgstr "" + +#. Tag: para +#: reference_management.xml:730 +#, no-c-format +msgid "" +"For backwards compatibility and for spatial needs such as tble inheritance " +"where each child table may have different geometry type, the old check " +"constraint behavior is still supported. If you need the old behavior, you " +"need to pass in the new optional argument as false " +"use_typmod=false. When this is done geometry columns will " +"be created with no type modifiers but will have 3 constraints defined. In " +"particular, this means that every geometry column belonging to a table has " +"at least three constraints:" +msgstr "" + +#. Tag: para +#: reference_management.xml:738 +#, no-c-format +msgid "" +"enforce_dims_the_geom - ensures every geometry has the " +"same dimension (see )" +msgstr "" + +#. Tag: para +#: reference_management.xml:744 +#, no-c-format +msgid "" +"enforce_geotype_the_geom - ensures every geometry is of " +"the same type (see )" +msgstr "" + +#. Tag: para +#: reference_management.xml:750 +#, no-c-format +msgid "" +"enforce_srid_the_geom - ensures every geometry is in the " +"same projection (see )" +msgstr "" + +#. Tag: para +#: reference_management.xml:756 +#, no-c-format +msgid "" +"If a table oid is provided, this function tries to " +"determine the srid, dimension, and geometry type of all geometry columns in " +"the table, adding constraints as necessary. If successful, an appropriate " +"row is inserted into the geometry_columns table, otherwise, the exception is " +"caught and an error notice is raised describing the problem." +msgstr "" + +#. Tag: para +#: reference_management.xml:763 +#, no-c-format +msgid "" +"If the oid of a view is provided, as with a table oid, " +"this function tries to determine the srid, dimension, and type of all the " +"geometries in the view, inserting appropriate entries into the " +"geometry_columns table, but nothing is done to enforce " +"constraints." +msgstr "" + +#. Tag: para +#: reference_management.xml:769 +#, no-c-format +msgid "" +"The parameterless variant is a simple wrapper for the parameterized variant " +"that first truncates and repopulates the geometry_columns table for every " +"spatial table and view in the database, adding spatial constraints to tables " +"where appropriate. It returns a summary of the number of geometry columns " +"detected in the database and the number that were inserted into the " +"geometry_columns table. The parameterized version simply " +"returns the number of rows inserted into the geometry_columns table." +msgstr "" + +#. Tag: para +#: reference_management.xml:777 +#, no-c-format +msgid "Availability: 1.4.0" +msgstr "" + +#. Tag: para +#: reference_management.xml:778 +#, no-c-format +msgid "" +"Changed: 2.0.0 By default, now uses type modifiers instead of check " +"constraints to constrain geometry types. You can still use check constraint " +"behavior instead by using the new use_typmod and setting " +"it to false." +msgstr "" + +#. Tag: para +#: reference_management.xml:780 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 use_typmod optional argument was " +"introduced that allows controlling if columns are created with typmodifiers " +"or with check constraints." +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:786 +#, no-c-format +msgid "" +"CREATE TABLE public.myspatial_table(gid serial, geom geometry);\n" +"INSERT INTO myspatial_table(geom) VALUES(ST_GeomFromText('LINESTRING(1 2, 3 " +"4)',4326) );\n" +"-- This will now use typ modifiers. For this to work, there must exist " +"data\n" +"SELECT Populate_Geometry_Columns('public.myspatial_table'::regclass);\n" +"\n" +"populate_geometry_columns\n" +"--------------------------\n" +" 1\n" +" \n" +" \n" +"\\d myspatial_table\n" +"\n" +" Table \"public.myspatial_table\"\n" +" Column | Type | " +"Modifiers \n" +"--------+---------------------------" +"+---------------------------------------------------------------\n" +" gid | integer | not null default nextval" +"('myspatial_table_gid_seq'::regclass)\n" +" geom | geometry(LineString,4326) |" +msgstr "" + +#. Tag: programlisting +#: reference_management.xml:788 +#, no-c-format +msgid "" +"-- This will change the geometry columns to use constraints if they are not " +"typmod or have constraints already. \n" +"--For this to work, there must exist data\n" +"CREATE TABLE public.myspatial_table_cs(gid serial, geom geometry);\n" +"INSERT INTO myspatial_table_cs(geom) VALUES(ST_GeomFromText('LINESTRING(1 2, " +"3 4)',4326) );\n" +"SELECT Populate_Geometry_Columns('public.myspatial_table_cs'::regclass, " +"false);\n" +"populate_geometry_columns\n" +"--------------------------\n" +" 1\n" +"\\d myspatial_table_cs\n" +"\n" +" Table \"public.myspatial_table_cs\"\n" +" Column | Type | " +"Modifiers \n" +"--------+----------" +"+------------------------------------------------------------------\n" +" gid | integer | not null default nextval('myspatial_table_cs_gid_seq'::" +"regclass)\n" +" geom | geometry | \n" +"Check constraints:\n" +" \"enforce_dims_geom\" CHECK (st_ndims(geom) = 2)\n" +" \"enforce_geotype_geom\" CHECK (geometrytype(geom) = 'LINESTRING'::text " +"OR geom IS NULL)\n" +" \"enforce_srid_geom\" CHECK (st_srid(geom) = 4326)" +msgstr "" + +#. Tag: refname +#: reference_management.xml:803 +#, no-c-format +msgid "UpdateGeometrySRID" +msgstr "" + +#. Tag: refpurpose +#: reference_management.xml:805 +#, no-c-format +msgid "" +"Updates the SRID of all features in a geometry column, geometry_columns " +"metadata and srid table constraint" +msgstr "" + +#. Tag: funcsynopsis +#: reference_management.xml:810 +#, no-c-format +msgid "" +" text UpdateGeometrySRID varchar table_name varchar column_name integer srid text " +"UpdateGeometrySRID varchar schema_name varchar " +" table_name varchar " +" column_name " +"integer srid text UpdateGeometrySRID varchar catalog_name varchar " +"schema_name varchar table_name varchar column_name integer " +" srid " +msgstr "" + +#. Tag: para +#: reference_management.xml:864 +#, no-c-format +msgid "" +"Updates the SRID of all features in a geometry column, updating constraints " +"and reference in geometry_columns. Note: uses current_schema() on schema-" +"aware pgsql installations if schema is not provided." +msgstr "" diff --git a/doc/po/it_IT/reference_measure.xml.po b/doc/po/it_IT/reference_measure.xml.po new file mode 100644 index 000000000..eb943c6e0 --- /dev/null +++ b/doc/po/it_IT/reference_measure.xml.po @@ -0,0 +1,4934 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_measure.xml:3 +#, no-c-format +msgid "Spatial Relationships and Measurements" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:6 +#, no-c-format +msgid "ST_3DClosestPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:8 +#, no-c-format +msgid "" +"Returns the 3-dimensional point on g1 that is closest to g2. This is the " +"first point of the 3D shortest line." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:14 +#, no-c-format +msgid "" +"geometry ST_3DClosestPoint " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: title +#: reference_measure.xml:27 reference_measure.xml:92 reference_measure.xml:143 +#: reference_measure.xml:195 reference_measure.xml:252 +#: reference_measure.xml:302 reference_measure.xml:371 +#: reference_measure.xml:417 reference_measure.xml:489 +#: reference_measure.xml:547 reference_measure.xml:621 +#: reference_measure.xml:739 reference_measure.xml:812 +#: reference_measure.xml:964 reference_measure.xml:1045 +#: reference_measure.xml:1127 reference_measure.xml:1187 +#: reference_measure.xml:1353 reference_measure.xml:1488 +#: reference_measure.xml:1566 reference_measure.xml:1627 +#: reference_measure.xml:1679 reference_measure.xml:1726 +#: reference_measure.xml:1775 reference_measure.xml:1828 +#: reference_measure.xml:1910 reference_measure.xml:1973 +#: reference_measure.xml:2022 reference_measure.xml:2082 +#: reference_measure.xml:2145 reference_measure.xml:2195 +#: reference_measure.xml:2228 reference_measure.xml:2273 +#: reference_measure.xml:2325 reference_measure.xml:2376 +#: reference_measure.xml:2428 reference_measure.xml:2516 +#: reference_measure.xml:2559 reference_measure.xml:2651 +#: reference_measure.xml:2700 reference_measure.xml:2737 +#: reference_measure.xml:2779 reference_measure.xml:2826 +#: reference_measure.xml:2884 reference_measure.xml:2950 +#: reference_measure.xml:2993 reference_measure.xml:3072 +#: reference_measure.xml:3220 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_measure.xml:29 +#, no-c-format +msgid "" +"Returns the 3-dimensional point on g1 that is closest to g2. This is the " +"first point of the 3D shortest line. The 3D length of the 3D shortest line " +"is the 3D distance." +msgstr "" + +#. Tag: para +#: reference_measure.xml:32 reference_measure.xml:97 reference_measure.xml:148 +#: reference_measure.xml:210 reference_measure.xml:265 +#: reference_measure.xml:311 reference_measure.xml:376 +#: reference_measure.xml:430 reference_measure.xml:2027 +#: reference_measure.xml:2232 reference_measure.xml:2287 +#: reference_measure.xml:2384 reference_measure.xml:2741 +#: reference_measure.xml:2787 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_measure.xml:34 reference_measure.xml:99 reference_measure.xml:150 +#: reference_measure.xml:212 reference_measure.xml:267 +#: reference_measure.xml:313 reference_measure.xml:378 +#: reference_measure.xml:432 reference_measure.xml:499 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_measure.xml:35 reference_measure.xml:102 +#: reference_measure.xml:153 reference_measure.xml:209 +#: reference_measure.xml:259 reference_measure.xml:310 +#: reference_measure.xml:380 reference_measure.xml:429 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: title +#: reference_measure.xml:39 reference_measure.xml:106 +#: reference_measure.xml:157 reference_measure.xml:217 +#: reference_measure.xml:317 reference_measure.xml:384 +#: reference_measure.xml:436 reference_measure.xml:505 +#: reference_measure.xml:563 reference_measure.xml:647 +#: reference_measure.xml:749 reference_measure.xml:850 +#: reference_measure.xml:1003 reference_measure.xml:1081 +#: reference_measure.xml:1156 reference_measure.xml:1253 +#: reference_measure.xml:1388 reference_measure.xml:1511 +#: reference_measure.xml:1580 reference_measure.xml:1652 +#: reference_measure.xml:1693 reference_measure.xml:1741 +#: reference_measure.xml:1789 reference_measure.xml:1846 +#: reference_measure.xml:1943 reference_measure.xml:1992 +#: reference_measure.xml:2033 reference_measure.xml:2238 +#: reference_measure.xml:2292 reference_measure.xml:2344 +#: reference_measure.xml:2390 reference_measure.xml:2438 +#: reference_measure.xml:2531 reference_measure.xml:2581 +#: reference_measure.xml:2747 reference_measure.xml:2791 +#: reference_measure.xml:2836 reference_measure.xml:2920 +#: reference_measure.xml:2960 reference_measure.xml:3009 +#: reference_measure.xml:3122 reference_measure.xml:3252 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: para +#: reference_measure.xml:44 +#, no-c-format +msgid "linestring and point -- both 3d and 2d closest point" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:45 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DClosestPoint(line,pt)) AS cp3d_line_pt, \n" +" ST_AsEWKT(ST_ClosestPoint(line,pt)) As cp2d_line_pt\n" +" FROM (SELECT 'POINT(100 100 30)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"1000)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" cp3d_line_pt " +"| cp2d_line_pt\n" +"-----------------------------------------------------------" +"+------------------------------------------\n" +" POINT(54.6993798867619 128.935022917228 11.5475869506606) | POINT" +"(73.0769230769231 115.384615384615)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:49 +#, no-c-format +msgid "linestring and multipoint -- both 3d and 2d closest point" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:50 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DClosestPoint(line,pt)) AS cp3d_line_pt, \n" +" ST_AsEWKT(ST_ClosestPoint(line,pt)) As cp2d_line_pt\n" +" FROM (SELECT 'MULTIPOINT(100 100 30, 50 74 1000)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"900)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" cp3d_line_pt | cp2d_line_pt\n" +"-----------------------------------------------------------+--------------\n" +" POINT(54.6993798867619 128.935022917228 11.5475869506606) | POINT(50 75)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:54 +#, no-c-format +msgid "Multilinestring and polygon both 3d and 2d closest point" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:55 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DClosestPoint(poly, mline)) As cp3d,\n" +" ST_AsEWKT(ST_ClosestPoint(poly, mline)) As cp2d \n" +" FROM (SELECT ST_GeomFromEWKT('POLYGON((175 150 5, 20 40 5, 35 45 5, " +"50 60 5, 100 100 5, 175 150 5))') As poly,\n" +" ST_GeomFromEWKT('MULTILINESTRING((175 155 2, 20 40 20, 50 60 " +"-2, 125 100 1, 175 155 1),\n" +" (1 10 2, 5 20 1))') As mline ) As foo;\n" +" cp3d | cp2d\n" +"-------------------------------------------+--------------\n" +" POINT(39.993580415989 54.1889925532825 5) | POINT(20 40)" +msgstr "" + +#. Tag: title +#: reference_measure.xml:65 reference_measure.xml:113 +#: reference_measure.xml:163 reference_measure.xml:222 +#: reference_measure.xml:275 reference_measure.xml:343 +#: reference_measure.xml:390 reference_measure.xml:462 +#: reference_measure.xml:521 reference_measure.xml:596 +#: reference_measure.xml:710 reference_measure.xml:784 +#: reference_measure.xml:937 reference_measure.xml:1008 +#: reference_measure.xml:1089 reference_measure.xml:1161 +#: reference_measure.xml:1458 reference_measure.xml:1517 +#: reference_measure.xml:1586 reference_measure.xml:1700 +#: reference_measure.xml:1748 reference_measure.xml:1796 +#: reference_measure.xml:1851 reference_measure.xml:1948 +#: reference_measure.xml:1998 reference_measure.xml:2040 +#: reference_measure.xml:2121 reference_measure.xml:2172 +#: reference_measure.xml:2204 reference_measure.xml:2247 +#: reference_measure.xml:2299 reference_measure.xml:2351 +#: reference_measure.xml:2397 reference_measure.xml:2491 +#: reference_measure.xml:2536 reference_measure.xml:2623 +#: reference_measure.xml:2677 reference_measure.xml:2713 +#: reference_measure.xml:2754 reference_measure.xml:2797 +#: reference_measure.xml:2842 reference_measure.xml:2926 +#: reference_measure.xml:2966 reference_measure.xml:3043 +#: reference_measure.xml:3263 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_measure.xml:67 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:72 +#, no-c-format +msgid "ST_3DDistance" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:74 +#, no-c-format +msgid "" +"For geometry type Returns the 3-dimensional cartesian minimum distance " +"(based on spatial ref) between two geometries in projected units." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:79 +#, no-c-format +msgid "" +"float ST_3DDistance " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:94 +#, no-c-format +msgid "" +"For geometry type returns the 3-dimensional minimum cartesian distance " +"between two geometries in projected units (spatial ref units)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:100 reference_measure.xml:151 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM ?" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:108 +#, no-c-format +msgid "" +"-- Geometry example - units in meters (SRID: 2163 US National Atlas Equal " +"area) (3D point and line compared 2D point and line)\n" +"-- Note: currently no vertical datum support so Z is not transformed and " +"assumed to be same units as final.\n" +"SELECT ST_3DDistance(\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;POINT" +"(-72.1235 42.3521 4)'),2163),\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;LINESTRING" +"(-72.1260 42.45 15, -72.123 42.1546 20)'),2163)\n" +" ) As dist_3d,\n" +" ST_Distance(\n" +" ST_Transform(ST_GeomFromText('POINT(-72.1235 " +"42.3521)',4326),2163),\n" +" ST_Transform(ST_GeomFromText('LINESTRING(-72.1260 " +"42.45, -72.123 42.1546)', 4326),2163)\n" +" ) As dist_2d;\n" +"\n" +" dist_3d | dist_2d\n" +"------------------+-----------------\n" +" 127.295059324629 | 126.66425605671" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:109 +#, no-c-format +msgid "" +"-- Multilinestring and polygon both 3d and 2d distance\n" +"-- Same example as 3D closest point example\n" +"SELECT ST_3DDistance(poly, mline) As dist3d,\n" +" ST_Distance(poly, mline) As dist2d \n" +" FROM (SELECT ST_GeomFromEWKT('POLYGON((175 150 5, 20 40 5, 35 45 5, " +"50 60 5, 100 100 5, 175 150 5))') As poly,\n" +" ST_GeomFromEWKT('MULTILINESTRING((175 155 2, 20 40 20, 50 60 " +"-2, 125 100 1, 175 155 1),\n" +" (1 10 2, 5 20 1))') As mline ) As foo;\n" +" dist3d | dist2d\n" +"-------------------+--------\n" +" 0.716635696066337 | 0" +msgstr "" + +#. Tag: para +#: reference_measure.xml:115 +#, no-c-format +msgid "" +", , , " +", , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:121 +#, no-c-format +msgid "ST_3DDWithin" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:123 +#, no-c-format +msgid "" +"For 3d (z) geometry type Returns true if two geometries 3d distance is " +"within number of units." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:127 +#, no-c-format +msgid "" +"boolean ST_3DDWithin " +"geometry g1 " +"geometry g2 " +"double precision distance_of_srid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:145 +#, no-c-format +msgid "" +"For geometry type returns true if the 3d distance between two objects is " +"within distance_of_srid specified projected units (spatial ref units)." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:159 +#, no-c-format +msgid "" +"-- Geometry example - units in meters (SRID: 2163 US National Atlas Equal " +"area) (3D point and line compared 2D point and line)\n" +"-- Note: currently no vertical datum support so Z is not transformed and " +"assumed to be same units as final.\n" +"SELECT ST_3DDWithin(\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;POINT" +"(-72.1235 42.3521 4)'),2163),\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;LINESTRING" +"(-72.1260 42.45 15, -72.123 42.1546 20)'),2163),\n" +" 126.8\n" +" ) As within_dist_3d,\n" +"ST_DWithin(\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;POINT" +"(-72.1235 42.3521 4)'),2163),\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;LINESTRING" +"(-72.1260 42.45 15, -72.123 42.1546 20)'),2163),\n" +" 126.8\n" +" ) As within_dist_2d;\n" +"\n" +" within_dist_3d | within_dist_2d\n" +"----------------+----------------\n" +" f | t" +msgstr "" + +#. Tag: para +#: reference_measure.xml:165 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:171 +#, no-c-format +msgid "ST_3DDFullyWithin" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:173 +#, no-c-format +msgid "" +"Returns true if all of the 3D geometries are within the specified distance " +"of one another." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:179 +#, no-c-format +msgid "" +"boolean ST_3DDFullyWithin " +"geometry g1 " +"geometry g2 " +"double precision distance" +msgstr "" + +#. Tag: para +#: reference_measure.xml:197 +#, no-c-format +msgid "" +"Returns true if the 3D geometries are fully within the specified distance of " +"one another. The distance is specified in units defined by the spatial " +"reference system of the geometries. For this function to make sense, the " +"source geometries must both be of the same coordinate projection, having the " +"same SRID." +msgstr "" + +#. Tag: para +#: reference_measure.xml:204 reference_measure.xml:261 +#: reference_measure.xml:1243 reference_measure.xml:1837 +#: reference_measure.xml:1923 reference_measure.xml:2095 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:218 +#, no-c-format +msgid "" +"-- This compares the difference between fully within and distance within as " +"well\n" +" -- as the distance fully within for the 2D footprint of the " +"line/point vs. the 3d fully within\n" +" SELECT ST_3DDFullyWithin(geom_a, geom_b, 10) as " +"D3DFullyWithin10, ST_3DDWithin(geom_a, geom_b, 10) as D3DWithin10, \n" +" ST_DFullyWithin(geom_a, geom_b, 20) as D2DFullyWithin20, \n" +" ST_3DDFullyWithin(geom_a, geom_b, 20) as D3DFullyWithin20 from \n" +" (select ST_GeomFromEWKT('POINT(1 1 2)') as geom_a,\n" +" ST_GeomFromEWKT('LINESTRING(1 5 2, 2 7 20, 1 9 100, 14 12 " +"3)') as geom_b) t1;\n" +" d3dfullywithin10 | d3dwithin10 | d2dfullywithin20 | d3dfullywithin20\n" +"------------------+-------------+------------------+------------------\n" +" f | t | t | f" +msgstr "" + +#. Tag: para +#: reference_measure.xml:224 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:230 +#, no-c-format +msgid "ST_3DIntersects" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:232 +#, no-c-format +msgid "" +"Returns TRUE if the Geometries \"spatially intersect\" in 3d - only for " +"points and linestrings" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:238 +#, no-c-format +msgid "" +"boolean ST_3DIntersects " +"geometry geomA " +"geometry geomB " +msgstr "" + +#. Tag: para +#: reference_measure.xml:253 reference_measure.xml:2083 +#, no-c-format +msgid "" +"Overlaps, Touches, Within all imply spatial intersection. If any of the " +"aforementioned returns true, then the geometries also spatially intersect. " +"Disjoint implies false for spatial intersection." +msgstr "" + +#. Tag: para +#: reference_measure.xml:268 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: ?" +msgstr "" + +#. Tag: title +#: reference_measure.xml:271 reference_measure.xml:2113 +#: reference_measure.xml:2161 +#, no-c-format +msgid "Geometry Examples" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:272 +#, no-c-format +msgid "" +"SELECT ST_3DIntersects(pt, line), ST_Intersects(pt,line) \n" +" FROM (SELECT 'POINT(0 0 2)'::geometry As pt, \n" +" 'LINESTRING (0 0 1, 0 2 3 )'::geometry As line) As foo;\n" +" st_3dintersects | st_intersects\n" +"-----------------+---------------\n" +" f | t\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:282 +#, no-c-format +msgid "ST_3DLongestLine" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:284 +#, no-c-format +msgid "Returns the 3-dimensional longest line between two geometries" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:289 +#, no-c-format +msgid "" +"geometry ST_3DLongestLine " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:304 +#, no-c-format +msgid "" +"Returns the 3-dimensional longest line between two geometries. The function " +"will only return the first longest line if more than one. The line returned " +"will always start in g1 and end in g2. The 3D length of the line this " +"function returns will always be the same as returns for g1 and g2." +msgstr "" + +#. Tag: para +#: reference_measure.xml:322 +#, no-c-format +msgid "linestring and point -- both 3d and 2d longest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:323 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DLongestLine(line,pt)) AS lol3d_line_pt, \n" +" ST_AsEWKT(ST_LongestLine(line,pt)) As lol2d_line_pt\n" +" FROM (SELECT 'POINT(100 100 30)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"1000)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" lol3d_line_pt | lol2d_line_pt\n" +"-----------------------------------+----------------------------\n" +" LINESTRING(50 75 1000,100 100 30) | LINESTRING(98 190,100 100)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:327 +#, no-c-format +msgid "linestring and multipoint -- both 3d and 2d longest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:328 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DLongestLine(line,pt)) AS lol3d_line_pt, \n" +" ST_AsEWKT(ST_LongestLine(line,pt)) As lol2d_line_pt\n" +" FROM (SELECT 'MULTIPOINT(100 100 30, 50 74 1000)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"900)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" lol3d_line_pt | lol2d_line_pt\n" +"---------------------------------+--------------------------\n" +" LINESTRING(98 190 1,50 74 1000) | LINESTRING(98 190,50 74)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:332 +#, no-c-format +msgid "Multilinestring and polygon both 3d and 2d longest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:333 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DLongestLine(poly, mline)) As lol3d,\n" +" ST_AsEWKT(ST_LongestLine(poly, mline)) As lol2d \n" +" FROM (SELECT ST_GeomFromEWKT('POLYGON((175 150 5, 20 40 5, 35 45 5, " +"50 60 5, 100 100 5, 175 150 5))') As poly,\n" +" ST_GeomFromEWKT('MULTILINESTRING((175 155 2, 20 40 20, 50 60 " +"-2, 125 100 1, 175 155 1),\n" +" (1 10 2, 5 20 1))') As mline ) As foo;\n" +" lol3d | lol2d\n" +"------------------------------+--------------------------\n" +" LINESTRING(175 150 5,1 10 2) | LINESTRING(175 150,1 10)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:345 +#, no-c-format +msgid "" +", , , " +", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:351 +#, no-c-format +msgid "ST_3DMaxDistance" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:353 +#, no-c-format +msgid "" +"For geometry type Returns the 3-dimensional cartesian maximum distance " +"(based on spatial ref) between two geometries in projected units." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:358 +#, no-c-format +msgid "" +"float ST_3DMaxDistance " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:373 +#, no-c-format +msgid "" +"For geometry type returns the 3-dimensional maximum cartesian distance " +"between two geometries in projected units (spatial ref units)." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:386 +#, no-c-format +msgid "" +"-- Geometry example - units in meters (SRID: 2163 US National Atlas Equal " +"area) (3D point and line compared 2D point and line)\n" +"-- Note: currently no vertical datum support so Z is not transformed and " +"assumed to be same units as final.\n" +"SELECT ST_3DMaxDistance(\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;POINT" +"(-72.1235 42.3521 10000)'),2163),\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;LINESTRING" +"(-72.1260 42.45 15, -72.123 42.1546 20)'),2163)\n" +" ) As dist_3d,\n" +" ST_MaxDistance(\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;POINT" +"(-72.1235 42.3521 10000)'),2163),\n" +" ST_Transform(ST_GeomFromEWKT('SRID=4326;LINESTRING" +"(-72.1260 42.45 15, -72.123 42.1546 20)'),2163)\n" +" ) As dist_2d;\n" +"\n" +" dist_3d | dist_2d\n" +"------------------+------------------\n" +" 24383.7467488441 | 22247.8472107251" +msgstr "" + +#. Tag: para +#: reference_measure.xml:392 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:397 +#, no-c-format +msgid "ST_3DShortestLine" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:399 +#, no-c-format +msgid "Returns the 3-dimensional shortest line between two geometries" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:404 +#, no-c-format +msgid "" +"geometry ST_3DShortestLine " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:419 +#, no-c-format +msgid "" +"Returns the 3-dimensional shortest line between two geometries. The function " +"will only return the first shortest line if more than one, that the function " +"finds. If g1 and g2 intersects in just one point the function will return a " +"line with both start and end in that intersection-point. If g1 and g2 are " +"intersecting with more than one point the function will return a line with " +"start and end in the same point but it can be any of the intersecting " +"points. The line returned will always start in g1 and end in g2. The 3D " +"length of the line this function returns will always be the same as returns for g1 and g2." +msgstr "" + +#. Tag: para +#: reference_measure.xml:441 +#, no-c-format +msgid "linestring and point -- both 3d and 2d shortest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:442 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DShortestLine(line,pt)) AS shl3d_line_pt, \n" +" ST_AsEWKT(ST_ShortestLine(line,pt)) As shl2d_line_pt\n" +" FROM (SELECT 'POINT(100 100 30)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"1000)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" shl3d_line_pt " +"| shl2d_line_pt\n" +"----------------------------------------------------------------------------" +"+------------------------------------------------------\n" +" LINESTRING(54.6993798867619 128.935022917228 11.5475869506606,100 100 30) " +"| LINESTRING(73.0769230769231 115.384615384615,100 100)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:446 +#, no-c-format +msgid "linestring and multipoint -- both 3d and 2d shortest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:447 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DShortestLine(line,pt)) AS shl3d_line_pt, \n" +" ST_AsEWKT(ST_ShortestLine(line,pt)) As shl2d_line_pt\n" +" FROM (SELECT 'MULTIPOINT(100 100 30, 50 74 1000)'::geometry As pt, \n" +" 'LINESTRING (20 80 20, 98 190 1, 110 180 3, 50 75 " +"900)'::geometry As line\n" +" ) As foo;\n" +" \n" +" \n" +" shl3d_line_pt | " +"shl2d_line_pt\n" +"---------------------------------------------------------------------------" +"+------------------------\n" +" LINESTRING(54.6993798867619 128.935022917228 11.5475869506606,100 100 30) | " +"LINESTRING(50 75,50 74)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:451 +#, no-c-format +msgid "Multilinestring and polygon both 3d and 2d shortest line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:452 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_3DShortestLine(poly, mline)) As shl3d,\n" +" ST_AsEWKT(ST_ShortestLine(poly, mline)) As shl2d \n" +" FROM (SELECT ST_GeomFromEWKT('POLYGON((175 150 5, 20 40 5, 35 45 5, " +"50 60 5, 100 100 5, 175 150 5))') As poly,\n" +" ST_GeomFromEWKT('MULTILINESTRING((175 155 2, 20 40 20, 50 60 " +"-2, 125 100 1, 175 155 1),\n" +" (1 10 2, 5 20 1))') As mline ) As foo;\n" +" shl3d " +"| shl2d\n" +"---------------------------------------------------------------------------------------------------" +"+------------------------\n" +" LINESTRING(39.993580415989 54.1889925532825 5,40.4078575708294 " +"53.6052383805529 5.03423778139177) | LINESTRING(20 40,20 40)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:464 +#, no-c-format +msgid "" +", , , " +", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:469 +#, no-c-format +msgid "ST_Area" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:471 +#, no-c-format +msgid "" +"Returns the area of the surface if it is a polygon or multi-polygon. For " +"\"geometry\" type area is in SRID units. For \"geography\" area is in square " +"meters." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:475 +#, no-c-format +msgid "" +" float ST_Area " +"geometry g1 float ST_Area geography geog boolean use_spheroid=true " +msgstr "" + +#. Tag: para +#: reference_measure.xml:491 +#, no-c-format +msgid "" +"Returns the area of the geometry if it is a polygon or multi-polygon. Return " +"the area measurement of an ST_Surface or ST_MultiSurface value. For geometry " +"Area is in the units of the srid. For geography area is in square meters and " +"defaults to measuring about the spheroid of the geography (currently only " +"WGS84). To measure around the faster but less accurate sphere -- ST_Area" +"(geog,false)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:496 +#, no-c-format +msgid "Enhanced: 2.0.0 - support for 2D polyhedral surfaces was introduced." +msgstr "" + +#. Tag: para +#: reference_measure.xml:497 reference_measure.xml:642 +#: reference_measure.xml:1572 reference_measure.xml:1937 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_measure.xml:498 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.1.2, 9.5.3" +msgstr "" + +#. Tag: para +#: reference_measure.xml:500 +#, no-c-format +msgid "" +"For polyhedral surfaces, only supports 2D polyhedral surfaces (not 2.5D). " +"For 2.5D, may give a non-zero answer, but only for the faces that sit " +"completely in XY plane." +msgstr "" + +#. Tag: para +#: reference_measure.xml:506 +#, no-c-format +msgid "" +"Return area in square feet for a plot of Massachusetts land and multiply by " +"conversion to get square meters. Note this is in square feet because 2249 is " +"Mass State Plane Feet" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:509 +#, no-c-format +msgid "" +"SELECT ST_Area(the_geom) As sqft, ST_Area(the_geom)*POWER(0.3048,2) As sqm\n" +" FROM (SELECT\n" +" ST_GeomFromText('POLYGON((743238 2967416,743238 2967450,\n" +" 743265 2967450,743265.625 2967416,743238 " +"2967416))',2249) ) As foo(the_geom);\n" +" sqft | sqm\n" +"---------+-------------\n" +" 928.625 | 86.27208552" +msgstr "" + +#. Tag: para +#: reference_measure.xml:510 +#, no-c-format +msgid "" +"Return area square feet and transform to Massachusetts state plane meters " +"(26986) to get square meters. Note this is in square feet because 2249 is " +"Mass State Plane Feet and transformed area is in square meters since 26986 " +"is state plane mass meters" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:513 +#, no-c-format +msgid "" +"SELECT ST_Area(the_geom) As sqft, ST_Area(ST_Transform(the_geom,26986)) As " +"sqm\n" +" FROM (SELECT\n" +" ST_GeomFromText('POLYGON((743238 2967416,743238 2967450,\n" +" 743265 2967450,743265.625 2967416,743238 " +"2967416))',2249) ) As foo(the_geom);\n" +" sqft | sqm\n" +"---------+------------------\n" +" 928.625 | 86.2724304199219" +msgstr "" + +#. Tag: para +#: reference_measure.xml:515 +#, no-c-format +msgid "" +"Return area square feet and square meters using Geography data type. Note " +"that we transform to our geometry to geography (before you can do that make " +"sure your geometry is in WGS 84 long lat 4326). Geography always measures in " +"meters. This is just for demonstration to compare. Normally your table will " +"be stored in geography data type already." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:518 +#, no-c-format +msgid "" +"SELECT ST_Area(the_geog)/POWER(0.3048,2) As sqft_spheroid, ST_Area(the_geog," +"false)/POWER(0.3048,2) As sqft_sphere, ST_Area(the_geog) As sqm_spheroid\n" +" FROM (SELECT\n" +" geography(\n" +" ST_Transform(\n" +" ST_GeomFromText('POLYGON((743238 2967416,743238 " +"2967450,743265 2967450,743265.625 2967416,743238 2967416))',\n" +" 2249\n" +" ) ,4326\n" +" )\n" +" )\n" +" ) As foo(the_geog);\n" +" sqft_spheroid | sqft_sphere | sqm_spheroid\n" +"-----------------+------------------+------------------\n" +"928.684405217197 | 927.186481558724 | 86.2776044452694\n" +"\n" +" --if your data is in geography already\n" +" SELECT ST_Area(the_geog)/POWER(0.3048,2) As sqft, ST_Area(the_geog) As " +"sqm\n" +" FROM somegeogtable;" +msgstr "" + +#. Tag: para +#: reference_measure.xml:522 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:528 +#, no-c-format +msgid "ST_Azimuth" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:530 +#, no-c-format +msgid "" +"Returns the angle in radians from the horizontal of the vector defined by " +"pointA and pointB. Angle is computed clockwise from down-to-up: on the " +"clock: 12=0; 3=PI/2; 6=PI; 9=3PI/2." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:533 +#, no-c-format +msgid "" +" float ST_Azimuth " +"geometry pointA " +"geometry pointB float ST_Azimuth geography pointA geography pointB " +msgstr "" + +#. Tag: para +#: reference_measure.xml:549 +#, no-c-format +msgid "" +"Returns the azimuth of the segment defined by the given Point geometries, or " +"NULL if the two points are coincident. Return value is in radians. Angle is " +"computed clockwise from down-to-up: on the clock: 12=0; 3=PI/2; 6=PI; 9=3PI/2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:553 +#, no-c-format +msgid "" +"The Azimuth is mathematical concept defined as the angle, in this case " +"measured in radian, between a reference plane and a point." +msgstr "" + +#. Tag: para +#: reference_measure.xml:556 +#, no-c-format +msgid "Availability: 1.1.0" +msgstr "" + +#. Tag: para +#: reference_measure.xml:557 +#, no-c-format +msgid "Enhanced: 2.0.0 support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_measure.xml:558 +#, no-c-format +msgid "" +"Azimuth is especially useful in conjunction with ST_Translate for shifting " +"an object along its perpendicular axis. See upgis_lineshift Plpgsqlfunctions PostGIS wiki section for example of this." +msgstr "" + +#. Tag: para +#: reference_measure.xml:564 +#, no-c-format +msgid "Geometry Azimuth in degrees" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:565 +#, no-c-format +msgid "" +"SELECT ST_Azimuth(ST_Point(25,45), ST_Point(75,100))/(2*pi())*360 as degAz,\n" +" ST_Azimuth(ST_Point(75,100), ST_Point(25,45))/(2*pi())*360 As " +"degAzrev;\n" +" \n" +"-- NOTE easier to remember syntax using PostgreSQL built-in degrees function " +"--\n" +"-- Both yield same answer --\n" +"SELECT degrees( ST_Azimuth(ST_Point(25,45), ST_Point(75,100)) ) as degAz,\n" +" degrees( ST_Azimuth(ST_Point(75,100), ST_Point(25,45)) ) As " +"degAzrev;\n" +"\n" +" degaz | degazrev\n" +"------------------+------------------\n" +" 42.2736890060937 | 222.273689006094" +msgstr "" + +#. Tag: para +#: reference_measure.xml:575 +#, no-c-format +msgid "" +"degAz is path to travel (azimuth), horizontal line (which starts at the " +"start point and ends where we want the end point to fall) and points (start " +"point: 25,45 is in green)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:585 +#, no-c-format +msgid "" +"degAzrev is azimuth curve shown, horizontal line (which starts at the start " +"point and ends where we want the end point to fall) and points (start point: " +"75,100 is in green)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:597 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:604 +#, no-c-format +msgid "ST_Centroid" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:606 +#, no-c-format +msgid "Returns the geometric center of a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:611 +#, no-c-format +msgid "" +"geometry ST_Centroid " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_measure.xml:623 +#, no-c-format +msgid "" +"Computes the geometric center of a geometry, or equivalently, the center of " +"mass of the geometry as a POINT. For [MULTI]POINTs, this is computed as the arithmetric mean " +"of the input coordinates. For [MULTI]LINESTRINGs, this is computed as the weighted length of each line segment. For " +"[MULTI]POLYGONs, \"weight\" is thought " +"in terms of area. If an empty geometry is supplied, an empty " +"GEOMETRYCOLLECTION is returned. If NULL is supplied, NULL is returned." +msgstr "" + +#. Tag: para +#: reference_measure.xml:635 +#, no-c-format +msgid "" +"The centroid is equal to the centroid of the set of component Geometries of " +"highest dimension (since the lower-dimension geometries contribute zero " +"\"weight\" to the centroid)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:639 +#, no-c-format +msgid "" +"Computation will be more accurate if performed by the GEOS module (enabled " +"at compile time)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:643 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.1.4, 9.5.5" +msgstr "" + +#. Tag: para +#: reference_measure.xml:649 +#, no-c-format +msgid "" +"In each of the following illustrations, the blue dot represents the centroid " +"of the source geometry." +msgstr "" + +#. Tag: para +#: reference_measure.xml:662 +#, no-c-format +msgid "Centroid of a MULTIPOINT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:673 +#, no-c-format +msgid "Centroid of a LINESTRING" +msgstr "" + +#. Tag: para +#: reference_measure.xml:686 +#, no-c-format +msgid "Centroid of a POLYGON" +msgstr "" + +#. Tag: para +#: reference_measure.xml:697 +#, no-c-format +msgid "Centroid of a GEOMETRYCOLLECTION" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:706 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Centroid('MULTIPOINT ( -1 0, -1 2, -1 3, -1 4, -1 7, 0 " +"1, 0 3, 1 1, 2 0, 6 0, 7 8, 9 8, 10 6 )'));\n" +" st_astext\n" +"------------------------------------------\n" +" POINT(2.30769230769231 3.30769230769231)\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:718 +#, no-c-format +msgid "ST_ClosestPoint" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:720 +#, no-c-format +msgid "" +"Returns the 2-dimensional point on g1 that is closest to g2. " +"This is the first point of the shortest line." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:726 +#, no-c-format +msgid "" +"geometry ST_ClosestPoint " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:741 +#, no-c-format +msgid "" +"Returns the 2-dimensional point on g1 that is closest to g2. This is " +"the first point of the shortest line." +msgstr "" + +#. Tag: para +#: reference_measure.xml:745 reference_measure.xml:1690 +#: reference_measure.xml:1842 reference_measure.xml:2433 +#: reference_measure.xml:3005 +#, no-c-format +msgid "Availability: 1.5.0" +msgstr "" + +#. Tag: para +#: reference_measure.xml:759 +#, no-c-format +msgid "" +"Closest between point and linestring is the point itself, but closest point " +"between a linestring and point is the point on line string that is closest." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:763 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_ClosestPoint(pt,line)) AS cp_pt_line, \n" +" ST_AsText(ST_ClosestPoint(line,pt)) As cp_line_pt\n" +"FROM (SELECT 'POINT(100 100)'::geometry As pt, \n" +" 'LINESTRING (20 80, 98 190, 110 180, 50 75 )'::geometry As " +"line\n" +" ) As foo;\n" +"\n" +" \n" +" cp_pt_line | cp_line_pt\n" +"----------------+------------------------------------------\n" +" POINT(100 100) | POINT(73.0769230769231 115.384615384615)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:771 +#, no-c-format +msgid "closest point on polygon A to polygon B" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:774 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_ClosestPoint(\n" +" ST_GeomFromText('POLYGON((175 150, 20 40, 50 60, 125 " +"100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ) \n" +" ) As ptwkt;\n" +" \n" +" ptwkt\n" +"------------------------------------------\n" +" POINT(140.752120669087 125.695053378061)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:786 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:792 +#, no-c-format +msgid "ST_Contains" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:794 +#, no-c-format +msgid "" +"Returns true if and only if no points of B lie in the exterior of A, and at " +"least one point of the interior of B lies in the interior of A." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:799 +#, no-c-format +msgid "" +"boolean ST_Contains " +"geometry geomA " +"geometry geomB" +msgstr "" + +#. Tag: para +#: reference_measure.xml:814 +#, no-c-format +msgid "" +"Geometry A contains Geometry B if and only if no points of B lie in the " +"exterior of A, and at least one point of the interior of B lies in the " +"interior of A. An important subtlety of this definition is that A does not " +"contain its boundary, but A does contain itself. Contrast that to where geometry A does not Contain Properly " +"itself." +msgstr "" + +#. Tag: para +#: reference_measure.xml:818 +#, no-c-format +msgid "" +"Returns TRUE if geometry B is completely inside geometry A. For this " +"function to make sense, the source geometries must both be of the same " +"coordinate projection, having the same SRID. ST_Contains is the inverse of " +"ST_Within. So ST_Contains(A,B) implies ST_Within(B,A) except in the case of " +"invalid geometries where the result is always false regardless or not " +"defined." +msgstr "" + +#. Tag: para +#: reference_measure.xml:823 reference_measure.xml:1050 +#: reference_measure.xml:1132 reference_measure.xml:1497 +#: reference_measure.xml:2564 reference_measure.xml:2910 +#: reference_measure.xml:3227 +#, no-c-format +msgid "Performed by the GEOS module" +msgstr "" + +#. Tag: para +#: reference_measure.xml:826 reference_measure.xml:988 +#: reference_measure.xml:1053 reference_measure.xml:1135 +#: reference_measure.xml:1239 reference_measure.xml:1494 +#: reference_measure.xml:3108 reference_measure.xml:3230 +#, no-c-format +msgid "Do not call with a GEOMETRYCOLLECTION as an argument" +msgstr "" + +#. Tag: para +#: reference_measure.xml:830 reference_measure.xml:992 +#: reference_measure.xml:1061 reference_measure.xml:1139 +#: reference_measure.xml:3234 +#, no-c-format +msgid "" +"Do not use this function with invalid geometries. You will get unexpected " +"results." +msgstr "" + +#. Tag: para +#: reference_measure.xml:833 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_Contains." +msgstr "" + +#. Tag: para +#: reference_measure.xml:838 reference_measure.xml:1072 +#: reference_measure.xml:1147 reference_measure.xml:1503 +#: reference_measure.xml:2104 reference_measure.xml:2573 +#: reference_measure.xml:3242 +#, no-c-format +msgid "" +"NOTE: this is the \"allowable\" version that returns a boolean, not an " +"integer." +msgstr "" + +#. Tag: para +#: reference_measure.xml:841 +#, no-c-format +msgid "" +"&sfs_compliant; s2.1.1.2 // s2.1.13.3 - same as within(geometry B, geometry " +"A)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:843 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.31" +msgstr "" + +#. Tag: para +#: reference_measure.xml:845 reference_measure.xml:1076 +#: reference_measure.xml:1151 +#, no-c-format +msgid "" +"There are certain subtleties to ST_Contains and ST_Within that are not " +"intuitively obvious. For details check out Subtleties of OGC Covers, Contains, Within" +msgstr "" + +#. Tag: para +#: reference_measure.xml:852 +#, no-c-format +msgid "" +"The ST_Contains predicate returns TRUE in all the following illustrations." +msgstr "" + +#. Tag: para +#: reference_measure.xml:864 +#, no-c-format +msgid "LINESTRING / MULTIPOINT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:874 reference_measure.xml:3186 +#, no-c-format +msgid "POLYGON / POINT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:885 reference_measure.xml:925 +#: reference_measure.xml:3155 +#, no-c-format +msgid "POLYGON / LINESTRING" +msgstr "" + +#. Tag: para +#: reference_measure.xml:895 reference_measure.xml:2610 +#: reference_measure.xml:3135 reference_measure.xml:3145 +#, no-c-format +msgid "POLYGON / POLYGON" +msgstr "" + +#. Tag: para +#: reference_measure.xml:903 +#, no-c-format +msgid "" +"The ST_Contains predicate returns FALSE in all the following illustrations." +msgstr "" + +#. Tag: para +#: reference_measure.xml:915 +#, no-c-format +msgid "POLYGON / MULTIPOINT" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:933 +#, no-c-format +msgid "" +"-- A circle within a circle\n" +"SELECT ST_Contains(smallc, bigc) As smallcontainsbig,\n" +" ST_Contains(bigc,smallc) As bigcontainssmall,\n" +" ST_Contains(bigc, ST_Union(smallc, bigc)) as bigcontainsunion,\n" +" ST_Equals(bigc, ST_Union(smallc, bigc)) as bigisunion,\n" +" ST_Covers(bigc, ST_ExteriorRing(bigc)) As bigcoversexterior,\n" +" ST_Contains(bigc, ST_ExteriorRing(bigc)) As bigcontainsexterior\n" +"FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 2)'), 10) As smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(1 2)'), 20) As " +"bigc) As foo;\n" +"\n" +"-- Result\n" +" smallcontainsbig | bigcontainssmall | bigcontainsunion | bigisunion | " +"bigcoversexterior | bigcontainsexterior\n" +"------------------+------------------+------------------+------------" +"+-------------------+---------------------\n" +" f | t | t | t | " +"t | f\n" +"\n" +"-- Example demonstrating difference between contains and contains properly\n" +"SELECT ST_GeometryType(geomA) As geomtype, ST_Contains(geomA,geomA) AS " +"acontainsa, ST_ContainsProperly(geomA, geomA) AS acontainspropa,\n" +" ST_Contains(geomA, ST_Boundary(geomA)) As acontainsba, ST_ContainsProperly" +"(geomA, ST_Boundary(geomA)) As acontainspropba\n" +"FROM (VALUES ( ST_Buffer(ST_Point(1,1), 5,1) ),\n" +" ( ST_MakeLine(ST_Point(1,1), ST_Point(-1,-1) ) ),\n" +" ( ST_Point(1,1) )\n" +" ) As foo(geomA);\n" +"\n" +" geomtype | acontainsa | acontainspropa | acontainsba | acontainspropba\n" +"--------------+------------+----------------+-------------" +"+-----------------\n" +"ST_Polygon | t | f | f | f\n" +"ST_LineString | t | f | f | f\n" +"ST_Point | t | t | f | f" +msgstr "" + +#. Tag: para +#: reference_measure.xml:938 +#, no-c-format +msgid "" +", , , " +", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:944 +#, no-c-format +msgid "ST_ContainsProperly" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:946 +#, no-c-format +msgid "" +"Returns true if B intersects the interior of A but not the boundary (or " +"exterior). A does not contain properly itself, but does contain itself." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:951 +#, no-c-format +msgid "" +"boolean ST_ContainsProperly " +"geometry geomA " +"geometry geomB" +msgstr "" + +#. Tag: para +#: reference_measure.xml:966 +#, no-c-format +msgid "" +"Returns true if B intersects the interior of A but not the boundary (or " +"exterior)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:968 +#, no-c-format +msgid "A does not contain properly itself, but does contain itself." +msgstr "" + +#. Tag: para +#: reference_measure.xml:969 +#, no-c-format +msgid "" +"Every point of the other geometry is a point of this geometry's interior. " +"The DE-9IM Intersection Matrix for the two geometries matches [T**FF*FF*] " +"used in " +msgstr "" + +#. Tag: para +#: reference_measure.xml:973 +#, no-c-format +msgid "" +"From JTS docs slightly reworded: The advantage to using this predicate over " +" and is " +"that it can be computed efficiently, with no need to compute topology at " +"individual points." +msgstr "" + +#. Tag: para +#: reference_measure.xml:975 +#, no-c-format +msgid "" +"An example use case for this predicate is computing the intersections of a " +"set of geometries with a large polygonal geometry. Since intersection is a " +"fairly slow operation, it can be more efficient to use containsProperly to " +"filter out test geometries which lie wholly inside the area. In these cases " +"the intersection is known a priori to be exactly the original test geometry." +msgstr "" + +#. Tag: para +#: reference_measure.xml:985 +#, no-c-format +msgid "Availability: 1.4.0 - requires GEOS >= 3.1.0." +msgstr "" + +#. Tag: para +#: reference_measure.xml:995 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_ContainsProperly." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1004 +#, no-c-format +msgid "" +"--a circle within a circle\n" +" SELECT ST_ContainsProperly(smallc, bigc) As smallcontainspropbig,\n" +" ST_ContainsProperly(bigc,smallc) As bigcontainspropsmall,\n" +" ST_ContainsProperly(bigc, ST_Union(smallc, bigc)) as " +"bigcontainspropunion,\n" +" ST_Equals(bigc, ST_Union(smallc, bigc)) as bigisunion,\n" +" ST_Covers(bigc, ST_ExteriorRing(bigc)) As bigcoversexterior,\n" +" ST_ContainsProperly(bigc, ST_ExteriorRing(bigc)) As " +"bigcontainsexterior\n" +" FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 2)'), 10) As " +"smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(1 2)'), 20) As bigc) As foo;\n" +" --Result\n" +" smallcontainspropbig | bigcontainspropsmall | bigcontainspropunion | " +"bigisunion | bigcoversexterior | bigcontainsexterior\n" +"------------------+------------------+------------------+------------" +"+-------------------+---------------------\n" +" f | t | f | " +"t | t | f\n" +"\n" +" --example demonstrating difference between contains and contains properly\n" +" SELECT ST_GeometryType(geomA) As geomtype, ST_Contains(geomA,geomA) AS " +"acontainsa, ST_ContainsProperly(geomA, geomA) AS acontainspropa,\n" +" ST_Contains(geomA, ST_Boundary(geomA)) As acontainsba, ST_ContainsProperly" +"(geomA, ST_Boundary(geomA)) As acontainspropba\n" +" FROM (VALUES ( ST_Buffer(ST_Point(1,1), 5,1) ),\n" +" ( ST_MakeLine(ST_Point(1,1), ST_Point(-1,-1) ) ),\n" +" ( ST_Point(1,1) )\n" +" ) As foo(geomA);\n" +"\n" +" geomtype | acontainsa | acontainspropa | acontainsba | acontainspropba\n" +"--------------+------------+----------------+-------------" +"+-----------------\n" +"ST_Polygon | t | f | f | f\n" +"ST_LineString | t | f | f | f\n" +"ST_Point | t | t | f | f" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1009 +#, no-c-format +msgid "" +", , , , , , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1015 +#, no-c-format +msgid "ST_Covers" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1017 +#, no-c-format +msgid "Returns 1 (TRUE) if no point in Geometry B is outside Geometry A" +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:1022 +#, no-c-format +msgid "" +" boolean ST_Covers " +"geometry geomA " +"geometry geomB boolean ST_Covers geography geogpolyA geography " +"geogpointB " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1047 +#, no-c-format +msgid "" +"Returns 1 (TRUE) if no point in Geometry/Geography B is outside Geometry/" +"Geography A" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1057 +#, no-c-format +msgid "For geography only Polygon covers point is supported." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1064 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_Covers." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1069 reference_measure.xml:1141 +#, no-c-format +msgid "Availability: 1.2.2 - requires GEOS >= 3.0" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1070 +#, no-c-format +msgid "Availability: 1.5 - support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1075 reference_measure.xml:1150 +#, no-c-format +msgid "Not an OGC standard, but Oracle has it too." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1082 +#, no-c-format +msgid "Geometry example" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1083 +#, no-c-format +msgid "" +"--a circle covering a circle\n" +"SELECT ST_Covers(smallc,smallc) As smallinsmall,\n" +" ST_Covers(smallc, bigc) As smallcoversbig,\n" +" ST_Covers(bigc, ST_ExteriorRing(bigc)) As bigcoversexterior,\n" +" ST_Contains(bigc, ST_ExteriorRing(bigc)) As bigcontainsexterior\n" +"FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 2)'), 10) As smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(1 2)'), 20) As bigc) As foo;\n" +" --Result\n" +" smallinsmall | smallcoversbig | bigcoversexterior | bigcontainsexterior\n" +"--------------+----------------+-------------------+---------------------\n" +" t | f | t | f\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1084 +#, no-c-format +msgid "Geeography Example" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1085 +#, no-c-format +msgid "" +"-- a point with a 300 meter buffer compared to a point, a point and its 10 " +"meter buffer\n" +"SELECT ST_Covers(geog_poly, geog_pt) As poly_covers_pt, \n" +" ST_Covers(ST_Buffer(geog_pt,10), geog_pt) As buff_10m_covers_cent\n" +" FROM (SELECT ST_Buffer(ST_GeogFromText('SRID=4326;POINT(-99.327 " +"31.4821)'), 300) As geog_poly,\n" +" ST_GeogFromText('SRID=4326;POINT(-99.33 " +"31.483)') As geog_pt ) As foo;\n" +" \n" +" poly_covers_pt | buff_10m_covers_cent\n" +"----------------+------------------\n" +" f | t" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1090 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1096 +#, no-c-format +msgid "ST_CoveredBy" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1098 +#, no-c-format +msgid "" +"Returns 1 (TRUE) if no point in Geometry/Geography A is outside " +"Geometry/Geography B" +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:1103 +#, no-c-format +msgid "" +" boolean ST_CoveredBy " +"geometry geomA " +"geometry geomB boolean ST_CoveredBy geography geogA geography geogB " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1129 +#, no-c-format +msgid "" +"Returns 1 (TRUE) if no point in Geometry/Geography A is outside " +"Geometry/Geography B" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1142 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_CoveredBy." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1157 +#, no-c-format +msgid "" +"--a circle coveredby a circle\n" +"SELECT ST_CoveredBy(smallc,smallc) As smallinsmall,\n" +" ST_CoveredBy(smallc, bigc) As smallcoveredbybig,\n" +" ST_CoveredBy(ST_ExteriorRing(bigc), bigc) As exteriorcoveredbybig,\n" +" ST_Within(ST_ExteriorRing(bigc),bigc) As exeriorwithinbig\n" +"FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 2)'), 10) As smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(1 2)'), 20) As bigc) As foo;\n" +" --Result\n" +" smallinsmall | smallcoveredbybig | exteriorcoveredbybig | exeriorwithinbig\n" +"--------------+-------------------+----------------------" +"+------------------\n" +" t | t | t | f\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1162 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1168 +#, no-c-format +msgid "ST_Crosses" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1170 +#, no-c-format +msgid "" +"Returns TRUE if the supplied geometries have some, but " +"not all, interior points in common." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1176 +#, no-c-format +msgid "" +"boolean ST_Crosses " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1189 +#, no-c-format +msgid "" +"ST_Crosses takes two geometry objects and returns " +"TRUE if their intersection \"spatially cross\", that is, " +"the geometries have some, but not all interior points in common. The " +"intersection of the interiors of the geometries must not be the empty set " +"and must have a dimensionality less than the the maximum dimension of the " +"two input geometries. Additionally, the intersection of the two geometries " +"must not equal either of the source geometries. Otherwise, it returns " +"FALSE." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1198 +#, no-c-format +msgid "In mathematical terms, this is expressed as:" +msgstr "" + +#. Tag: remark +#: reference_measure.xml:1200 +#, no-c-format +msgid "" +"TODO: Insert appropriate MathML markup here or use a gif. Simple HTML markup " +"does not work well in both IE and Firefox." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1211 +#, no-c-format +msgid "The DE-9IM Intersection Matrix for the two geometries is:" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1215 +#, no-c-format +msgid "" +"T*T****** (for Point/Line, Point/Area, and Line/Area " +"situations)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1220 +#, no-c-format +msgid "" +"T*****T** (for Line/Point, Area/Point, and Area/Line " +"situations)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1225 +#, no-c-format +msgid "0******** (for Line/Line situations)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1229 +#, no-c-format +msgid "For any other combination of dimensions this predicate returns false." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1232 +#, no-c-format +msgid "" +"The OpenGIS Simple Features Specification defines this predicate only for " +"Point/Line, Point/Area, Line/Line, and Line/Area situations. JTS / GEOS " +"extends the definition to apply to Line/Point, Area/Point and Area/Line " +"situations as well. This makes the relation symmetric." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1248 +#, no-c-format +msgid "&sfs_compliant; s2.1.13.3" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1249 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.29" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1255 reference_measure.xml:2582 +#, no-c-format +msgid "The following illustrations all return TRUE." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1267 +#, no-c-format +msgid "MULTIPOINT / LINESTRING" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1277 +#, no-c-format +msgid "MULTIPOINT / POLYGON" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1289 +#, no-c-format +msgid "LINESTRING / POLYGON" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1299 reference_measure.xml:2602 +#: reference_measure.xml:3166 reference_measure.xml:3176 +#, no-c-format +msgid "LINESTRING / LINESTRING" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1307 +#, no-c-format +msgid "" +"Consider a situation where a user has two tables: a table of roads and a " +"table of highways." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1315 +#, no-c-format +msgid "" +"CREATE TABLE roads (\n" +" id serial NOT NULL,\n" +" the_geom geometry,\n" +" CONSTRAINT roads_pkey PRIMARY KEY (road_id)\n" +");" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1319 +#, no-c-format +msgid "" +"CREATE TABLE highways (\n" +" id serial NOT NULL,\n" +" the_gem geometry,\n" +" CONSTRAINT roads_pkey PRIMARY KEY (road_id)\n" +");" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1326 +#, no-c-format +msgid "" +"To determine a list of roads that cross a highway, use a query similiar to:" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1330 +#, no-c-format +msgid "" +"SELECT roads.id\n" +"FROM roads, highways\n" +"WHERE ST_Crosses(roads.the_geom, highways.the_geom);" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1337 +#, no-c-format +msgid "ST_LineCrossingDirection" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1339 +#, no-c-format +msgid "" +"Given 2 linestrings, returns a number between -3 and 3 denoting what kind of " +"crossing behavior. 0 is no crossing." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1344 +#, no-c-format +msgid "" +"integer ST_LineCrossingDirection " +"geometry linestringA geometry linestringB" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1355 +#, no-c-format +msgid "" +"Given 2 linestrings, returns a number between -3 and 3 denoting what kind of " +"crossing behavior. 0 is no crossing. This is only supported for " +"LINESTRING" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1356 +#, no-c-format +msgid "Definition of integer constants is as follows:" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1359 +#, no-c-format +msgid "0: LINE NO CROSS" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1362 +#, no-c-format +msgid "-1: LINE CROSS LEFT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1365 +#, no-c-format +msgid "1: LINE CROSS RIGHT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1368 +#, no-c-format +msgid "-2: LINE MULTICROSS END LEFT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1371 +#, no-c-format +msgid "2: LINE MULTICROSS END RIGHT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1374 +#, no-c-format +msgid "-3: LINE MULTICROSS END SAME FIRST LEFT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1377 +#, no-c-format +msgid "3: LINE MULTICROSS END SAME FIRST RIGHT" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1381 +#, no-c-format +msgid "Availability: 1.4" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1399 +#, no-c-format +msgid "" +"Line 1 (green), Line 2 ball is start point, triangle are end points. Query " +"below." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1403 +#, no-c-format +msgid "" +"SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 ,\n" +" ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1\n" +"FROM (\n" +"SELECT\n" +" ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,\n" +" ST_GeomFromText('LINESTRING(171 154,20 140,71 74,161 53)') As line2\n" +" ) As foo;\n" +"\n" +" l1_cross_l2 | l2_cross_l1\n" +"-------------+-------------\n" +" 3 | -3" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1413 reference_measure.xml:1427 +#: reference_measure.xml:1441 +#, no-c-format +msgid "" +"Line 1 (green), Line 2 (blue) ball is start point, triangle are end points. " +"Query below." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1417 +#, no-c-format +msgid "" +"SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 ,\n" +" ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1\n" +"FROM (\n" +" SELECT\n" +" ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,\n" +" ST_GeomFromText('LINESTRING (171 154, 20 140, 71 74, 2.99 90.16)') As " +"line2\n" +") As foo;\n" +"\n" +" l1_cross_l2 | l2_cross_l1\n" +"-------------+-------------\n" +" 2 | -2" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1431 +#, no-c-format +msgid "" +"SELECT\n" +" ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 ,\n" +" ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1\n" +"FROM (\n" +" SELECT\n" +" ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,\n" +" ST_GeomFromText('LINESTRING (20 140, 71 74, 161 53)') As line2\n" +" ) As foo;\n" +"\n" +" l1_cross_l2 | l2_cross_l1\n" +"-------------+-------------\n" +" -1 | 1" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1445 +#, no-c-format +msgid "" +"SELECT ST_LineCrossingDirection(foo.line1, foo.line2) As l1_cross_l2 ,\n" +" ST_LineCrossingDirection(foo.line2, foo.line1) As l2_cross_l1\n" +"FROM (SELECT\n" +" ST_GeomFromText('LINESTRING(25 169,89 114,40 70,86 43)') As line1,\n" +" ST_GeomFromText('LINESTRING(2.99 90.16,71 74,20 140,171 154)') As " +"line2\n" +" ) As foo;\n" +"\n" +" l1_cross_l2 | l2_cross_l1\n" +"-------------+-------------\n" +" -2 | 2" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1453 +#, no-c-format +msgid "" +"SELECT s1.gid, s2.gid, ST_LineCrossingDirection(s1.the_geom, s2.the_geom)\n" +" FROM streets s1 CROSS JOIN streets s2 ON (s1.gid != s2.gid AND s1." +"the_geom && s2.the_geom )\n" +"WHERE ST_CrossingDirection(s1.the_geom, s2.the_geom) > 0;" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1466 +#, no-c-format +msgid "ST_Disjoint" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1468 +#, no-c-format +msgid "" +"Returns TRUE if the Geometries do not \"spatially intersect\" - if they do " +"not share any space together." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1474 +#, no-c-format +msgid "" +"boolean ST_Disjoint " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1489 +#, no-c-format +msgid "" +"Overlaps, Touches, Within all imply geometries are not spatially disjoint. " +"If any of the aforementioned returns true, then the geometries are not " +"spatially disjoint. Disjoint implies false for spatial intersection." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1499 +#, no-c-format +msgid "This function call does not use indexes" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1506 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.2 //s2.1.13.3 - a.Relate(b, 'FF*FF****')" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1508 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.26" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1513 +#, no-c-format +msgid "" +"SELECT ST_Disjoint('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::" +"geometry);\n" +" st_disjoint\n" +"---------------\n" +" t\n" +"(1 row)\n" +"SELECT ST_Disjoint('POINT(0 0)'::geometry, 'LINESTRING ( 0 0, 0 2 )'::" +"geometry);\n" +" st_disjoint\n" +"---------------\n" +" f\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1518 +#, no-c-format +msgid "ST_Intersects" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1524 +#, no-c-format +msgid "ST_Distance" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1526 +#, no-c-format +msgid "" +"For geometry type Returns the 2-dimensional cartesian minimum distance " +"(based on spatial ref) between two geometries in projected units. For " +"geography type defaults to return spheroidal minimum distance between two " +"geographies in meters." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:1530 +#, no-c-format +msgid "" +" float ST_Distance " +"geometry g1 " +"geometry g2 float ST_Distance geography gg1 geography gg2 float " +"ST_Distance geography " +"gg1 geography " +"gg2 boolean " +"use_spheroid " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1568 +#, no-c-format +msgid "" +"For geometry type returns the 2-dimensional minimum cartesian distance " +"between two geometries in projected units (spatial ref units). For geography " +"type defaults to return the minimum distance around WGS 84 spheroid between " +"two geographies in meters. Pass in false to return answer in sphere instead " +"of spheroid." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1573 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.23" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1575 +#, no-c-format +msgid "" +"Availability: 1.5.0 geography support was introduced in 1.5. Speed " +"improvements for planar to better handle large or many vertex geometries" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1576 reference_measure.xml:1939 +#, no-c-format +msgid "" +"Enhanced: 2.1.0 improved speed for geography. See Making Geography faster for details." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1582 +#, no-c-format +msgid "" +"--Geometry example - units in planar degrees 4326 is WGS 84 long lat " +"unit=degrees\n" +"SELECT ST_Distance(\n" +" ST_GeomFromText('POINT(-72.1235 42.3521)',4326),\n" +" ST_GeomFromText('LINESTRING(-72.1260 42.45, -72.123 " +"42.1546)', 4326)\n" +" );\n" +"st_distance\n" +"-----------------\n" +"0.00150567726382282\n" +"\n" +"-- Geometry example - units in meters (SRID: 26986 Massachusetts state plane " +"meters) (most accurate for Massachusetts)\n" +"SELECT ST_Distance(\n" +" ST_Transform(ST_GeomFromText('POINT(-72.1235 " +"42.3521)',4326),26986),\n" +" ST_Transform(ST_GeomFromText('LINESTRING(-72.1260 " +"42.45, -72.123 42.1546)', 4326),26986)\n" +" );\n" +"st_distance\n" +"-----------------\n" +"123.797937878454\n" +"\n" +"-- Geometry example - units in meters (SRID: 2163 US National Atlas Equal " +"area) (least accurate)\n" +"SELECT ST_Distance(\n" +" ST_Transform(ST_GeomFromText('POINT(-72.1235 " +"42.3521)',4326),2163),\n" +" ST_Transform(ST_GeomFromText('LINESTRING(-72.1260 " +"42.45, -72.123 42.1546)', 4326),2163)\n" +" );\n" +"\n" +"st_distance\n" +"------------------\n" +"126.664256056812\n" +"\n" +"-- Geography example -- same but note units in meters - use sphere for " +"slightly faster less accurate\n" +"SELECT ST_Distance(gg1, gg2) As spheroid_dist, ST_Distance(gg1, gg2, false) " +"As sphere_dist \n" +"FROM (SELECT\n" +" ST_GeographyFromText('SRID=4326;POINT(-72.1235 42.3521)') As gg1,\n" +" ST_GeographyFromText('SRID=4326;LINESTRING(-72.1260 42.45, -72.123 " +"42.1546)') As gg2\n" +" ) As foo ;\n" +"\n" +" spheroid_dist | sphere_dist\n" +"------------------+------------------\n" +" 123.802076746848 | 123.475736916397" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1588 +#, no-c-format +msgid "" +", , , " +", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1594 +#, no-c-format +msgid "ST_HausdorffDistance" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1596 +#, no-c-format +msgid "" +"Returns the Hausdorff distance between two geometries. Basically a measure " +"of how similar or dissimilar 2 geometries are. Units are in the units of the " +"spatial reference system of the geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:1601 +#, no-c-format +msgid "" +" float ST_HausdorffDistance geometry g1 geometry g2 float " +"ST_HausdorffDistance geometry " +" g1 geometry g2 float " +"densifyFrac " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1629 +#, no-c-format +msgid "" +"Implements algorithm for computing a distance metric which can be thought of " +"as the \"Discrete Hausdorff Distance\". This is the Hausdorff distance " +"restricted to discrete points for one of the geometries. Wikipedia article on Hausdorff " +"distance Martin Davis note on how Hausdorff " +"Distance calculation was used to prove correctness of the " +"CascadePolygonUnion approach." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1632 +#, no-c-format +msgid "" +"When densifyFrac is specified, this function performs a segment " +"densification before computing the discrete hausdorff distance. The " +"densifyFrac parameter sets the fraction by which to densify each segment. " +"Each segment will be split into a number of equal-length subsegments, whose " +"fraction of the total length is closest to the given fraction." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1637 +#, no-c-format +msgid "" +"The current implementation supports only vertices as the discrete locations. " +"This could be extended to allow an arbitrary density of points to be used." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1642 +#, no-c-format +msgid "" +"This algorithm is NOT equivalent to the standard Hausdorff distance. " +"However, it computes an approximation that is correct for a large subset of " +"useful cases. One important part of this subset is Linestrings that are " +"roughly parallel to each other, and roughly equal in length. This is a " +"useful metric for line matching." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1647 +#, no-c-format +msgid "Availability: 1.5.0 - requires GEOS >= 3.2.0" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1654 +#, no-c-format +msgid "" +"postgis=# SELECT st_HausdorffDistance(\n" +" 'LINESTRING (0 0, 2 0)'::geometry,\n" +" 'MULTIPOINT (0 1, 1 0, 2 1)'::geometry);\n" +" st_hausdorffdistance\n" +" ----------------------\n" +" 1\n" +"(1 row)" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1655 +#, no-c-format +msgid "" +"postgis=# SELECT st_hausdorffdistance('LINESTRING (130 0, 0 0, 0 150)'::" +"geometry, 'LINESTRING (10 10, 10 150, 130 10)'::geometry, 0.5);\n" +" st_hausdorffdistance\n" +" ----------------------\n" +" 70\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1662 +#, no-c-format +msgid "ST_MaxDistance" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1664 +#, no-c-format +msgid "" +"Returns the 2-dimensional largest distance between two geometries in " +"projected units." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1670 +#, no-c-format +msgid "" +"float ST_MaxDistance " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1681 +#, no-c-format +msgid "Some useful description here." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1685 +#, no-c-format +msgid "" +"Returns the 2-dimensional maximum distance between two linestrings in " +"projected units. If g1 and g2 is the same geometry the function will return " +"the distance between the two vertices most far from each other in that " +"geometry." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1695 +#, no-c-format +msgid "" +"postgis=# SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 " +"2 )'::geometry);\n" +" st_maxdistance\n" +"-----------------\n" +" 2\n" +"(1 row)\n" +"\n" +"postgis=# SELECT ST_MaxDistance('POINT(0 0)'::geometry, 'LINESTRING ( 2 2, 2 " +"2 )'::geometry);\n" +" st_maxdistance \n" +"------------------\n" +" 2.82842712474619\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1701 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1707 +#, no-c-format +msgid "ST_Distance_Sphere" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1709 +#, no-c-format +msgid "" +"Returns minimum distance in meters between two lon/lat geometries. Uses a " +"spherical earth and radius of 6370986 meters. Faster than " +"ST_Distance_Spheroid , but less " +"accurate. PostGIS versions prior to 1.5 only implemented for points." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1717 +#, no-c-format +msgid "" +"float ST_Distance_Sphere " +"geometry geomlonlatA geometry geomlonlatB" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1728 +#, no-c-format +msgid "" +"Returns minimum distance in meters between two lon/lat points. Uses a " +"spherical earth and radius of 6370986 meters. Faster than , but less accurate. PostGIS Versions prior to 1.5 " +"only implemented for points." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1733 +#, no-c-format +msgid "" +"This function currently does not look at the SRID of a geometry and will " +"always assume its in WGS 84 long lat. Prior versions of this function only " +"support points." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1736 reference_measure.xml:1784 +#, no-c-format +msgid "" +"Availability: 1.5 - support for other geometry types besides points was " +"introduced. Prior versions only work with points." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1743 +#, no-c-format +msgid "" +"SELECT round(CAST(ST_Distance_Sphere(ST_Centroid(the_geom), ST_GeomFromText" +"('POINT(-118 38)',4326)) As numeric),2) As dist_meters,\n" +"round(CAST(ST_Distance(ST_Transform(ST_Centroid(the_geom),32611),\n" +" ST_Transform(ST_GeomFromText('POINT(-118 38)', 4326),32611)) " +"As numeric),2) As dist_utm11_meters,\n" +"round(CAST(ST_Distance(ST_Centroid(the_geom), ST_GeomFromText('POINT(-118 " +"38)', 4326)) As numeric),5) As dist_degrees,\n" +"round(CAST(ST_Distance(ST_Transform(the_geom,32611),\n" +" ST_Transform(ST_GeomFromText('POINT(-118 38)', 4326),32611)) " +"As numeric),2) As min_dist_line_point_meters\n" +"FROM\n" +" (SELECT ST_GeomFromText('LINESTRING(-118.584 38.374,-118.583 38.5)', " +"4326) As the_geom) as foo;\n" +" dist_meters | dist_utm11_meters | dist_degrees | " +"min_dist_line_point_meters\n" +" -------------+-------------------+--------------" +"+----------------------------\n" +" 70424.47 | 70438.00 | 0.72900 " +"| 65871.18" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1750 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1756 +#, no-c-format +msgid "ST_Distance_Spheroid" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1758 +#, no-c-format +msgid "" +"Returns the minimum distance between two lon/lat geometries given a " +"particular spheroid. PostGIS versions prior to 1.5 only support points." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1765 +#, no-c-format +msgid "" +"float ST_Distance_Spheroid " +"geometry geomlonlatA geometry geomlonlatB spheroid " +"measurement_spheroid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1777 +#, no-c-format +msgid "" +"Returns minimum distance in meters between two lon/lat geometries given a " +"particular spheroid. See the explanation of spheroids given for . PostGIS version prior to 1.5 only support " +"points." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1781 +#, no-c-format +msgid "" +"This function currently does not look at the SRID of a geometry and will " +"always assume its represented in the coordinates of the passed in spheroid. " +"Prior versions of this function only support points." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1791 +#, no-c-format +msgid "" +"SELECT round(CAST(\n" +" ST_Distance_Spheroid(ST_Centroid(the_geom), ST_GeomFromText" +"('POINT(-118 38)',4326), 'SPHEROID[\"WGS 84\",6378137,298.257223563]')\n" +" As numeric),2) As dist_meters_spheroid,\n" +" round(CAST(ST_Distance_Sphere(ST_Centroid(the_geom), " +"ST_GeomFromText('POINT(-118 38)',4326)) As numeric),2) As " +"dist_meters_sphere,\n" +"round(CAST(ST_Distance(ST_Transform(ST_Centroid(the_geom),32611),\n" +" ST_Transform(ST_GeomFromText('POINT(-118 38)', 4326),32611)) " +"As numeric),2) As dist_utm11_meters\n" +"FROM\n" +" (SELECT ST_GeomFromText('LINESTRING(-118.584 38.374,-118.583 38.5)', " +"4326) As the_geom) as foo;\n" +" dist_meters_spheroid | dist_meters_sphere | dist_utm11_meters\n" +"----------------------+--------------------+-------------------\n" +" 70454.92 | 70424.47 | 70438.00" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1798 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1804 +#, no-c-format +msgid "ST_DFullyWithin" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1806 +#, no-c-format +msgid "" +"Returns true if all of the geometries are within the specified distance of " +"one another" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1812 +#, no-c-format +msgid "" +"boolean ST_DFullyWithin " +"geometry g1 " +"geometry g2 " +"double precision distance" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1830 +#, no-c-format +msgid "" +"Returns true if the geometries is fully within the specified distance of one " +"another. The distance is specified in units defined by the spatial reference " +"system of the geometries. For this function to make sense, the source " +"geometries must both be of the same coordinate projection, having the same " +"SRID." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1847 +#, no-c-format +msgid "" +"postgis=# SELECT ST_DFullyWithin(geom_a, geom_b, 10) as DFullyWithin10, " +"ST_DWithin(geom_a, geom_b, 10) as DWithin10, ST_DFullyWithin(geom_a, geom_b, " +"20) as DFullyWithin20 from \n" +" (select ST_GeomFromText('POINT(1 1)') as geom_a," +"ST_GeomFromText('LINESTRING(1 5, 2 7, 1 9, 14 12)') as geom_b) t1;\n" +" \n" +"-----------------\n" +" DFullyWithin10 | DWithin10 | DFullyWithin20 |\n" +"---------------+----------+---------------+\n" +" f | t | t |" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1853 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1859 +#, no-c-format +msgid "ST_DWithin" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1861 +#, no-c-format +msgid "" +"Returns true if the geometries are within the specified distance of one " +"another. For geometry units are in those of spatial reference and For " +"geography units are in meters and measurement is defaulted to " +"use_spheroid=true (measure around spheroid), for faster check, " +"use_spheroid=false to measure along sphere." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:1867 +#, no-c-format +msgid "" +" boolean ST_DWithin " +"geometry g1 " +"geometry g2 " +"double precision distance_of_srid boolean " +"ST_DWithin geography " +"gg1 geography " +"gg2 double precision distance_meters " +" boolean ST_DWithin " +"geography gg1 " +"geography gg2 " +"double precision distance_meters boolean " +"use_spheroid " +msgstr "" + +#. Tag: para +#: reference_measure.xml:1912 +#, no-c-format +msgid "" +"Returns true if the geometries are within the specified distance of one " +"another." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1914 +#, no-c-format +msgid "" +"For Geometries: The distance is specified in units defined by the spatial " +"reference system of the geometries. For this function to make sense, the " +"source geometries must both be of the same coordinate projection, having the " +"same SRID." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1919 +#, no-c-format +msgid "" +"For geography units are in meters and measurement is defaulted to " +"use_spheroid=true (measure around WGS 84 spheroid), for faster check, " +"use_spheroid=false to measure along sphere." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1929 +#, no-c-format +msgid "" +"Prior to 1.3, ST_Expand was commonly used in conjunction with && and " +"ST_Distance to achieve the same effect and in pre-1.3.4 this function was " +"basically short-hand for that construct. From 1.3.4, ST_DWithin uses a more " +"short-circuit distance function which should make it more efficient than " +"prior versions for larger buffer regions." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1935 +#, no-c-format +msgid "Use ST_3DDWithin if you have 3D geometries." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1938 +#, no-c-format +msgid "Availability: 1.5.0 support for geography was introduced" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1944 +#, no-c-format +msgid "" +"--Find the nearest hospital to each school\n" +"--that is within 3000 units of the school.\n" +"-- We do an ST_DWithin search to utilize indexes to limit our search list\n" +"-- that the non-indexable ST_Distance needs to process\n" +"--If the units of the spatial reference is meters then units would be " +"meters\n" +"SELECT DISTINCT ON (s.gid) s.gid, s.school_name, s.the_geom, h." +"hospital_name\n" +" FROM schools s\n" +" LEFT JOIN hospitals h ON ST_DWithin(s.the_geom, h.the_geom, " +"3000)\n" +" ORDER BY s.gid, ST_Distance(s.the_geom, h.the_geom);\n" +"\n" +"--The schools with no close hospitals\n" +"--Find all schools with no hospital within 3000 units\n" +"--away from the school. Units is in units of spatial ref (e.g. meters, " +"feet, degrees)\n" +"SELECT s.gid, s.school_name\n" +" FROM schools s\n" +" LEFT JOIN hospitals h ON ST_DWithin(s.the_geom, h.the_geom, " +"3000)\n" +" WHERE h.gid IS NULL;" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1950 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:1956 +#, no-c-format +msgid "ST_Equals" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:1958 +#, no-c-format +msgid "" +"Returns true if the given geometries represent the same geometry. " +"Directionality is ignored." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:1964 +#, no-c-format +msgid "" +"boolean ST_Equals " +"geometry A " +"geometry B" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1975 +#, no-c-format +msgid "" +"Returns TRUE if the given Geometries are \"spatially equal\". Use this for a " +"'better' answer than '='. Note by spatially equal we mean ST_Within(A,B) = " +"true and ST_Within(B,A) = true and also mean ordering of points can be " +"different but represent the same geometry structure. To verify the order of " +"points is consistent, use ST_OrderingEquals (it must be noted " +"ST_OrderingEquals is a little more stringent than simply verifying order of " +"points are the same)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1984 +#, no-c-format +msgid "" +"This function will return false if either geometry is invalid even if they " +"are binary equal." +msgstr "" + +#. Tag: para +#: reference_measure.xml:1987 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:1988 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.24" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:1994 +#, no-c-format +msgid "" +"SELECT ST_Equals(ST_GeomFromText('LINESTRING(0 0, 10 10)'),\n" +" ST_GeomFromText('LINESTRING(0 0, 5 5, 10 10)'));\n" +" st_equals\n" +"-----------\n" +" t\n" +"(1 row)\n" +"\n" +"SELECT ST_Equals(ST_Reverse(ST_GeomFromText('LINESTRING(0 0, 10 10)')),\n" +" ST_GeomFromText('LINESTRING(0 0, 5 5, 10 10)'));\n" +" st_equals\n" +"-----------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2000 +#, no-c-format +msgid "" +", , , " +"" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2007 +#, no-c-format +msgid "ST_HasArc" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2009 +#, no-c-format +msgid "" +"Returns true if a geometry or geometry collection contains a " +"circular string" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2014 +#, no-c-format +msgid "" +"boolean ST_HasArc " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2024 +#, no-c-format +msgid "" +"Returns true if a geometry or geometry collection contains a circular " +"string" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2026 +#, no-c-format +msgid "Availability: 1.2.3?" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2028 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2035 +#, no-c-format +msgid "" +"SELECT ST_HasArc(ST_Collect('LINESTRING(1 2, 3 4, 5 6)', 'CIRCULARSTRING(1 " +"1, 2 3, 4 5, 6 7, 5 6)'));\n" +" st_hasarc\n" +" --------\n" +" t" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2042 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2048 +#, no-c-format +msgid "ST_Intersects" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2050 +#, no-c-format +msgid "" +"Returns TRUE if the Geometries/Geography \"spatially intersect in 2D\" - " +"(share any portion of space) and FALSE if they don't (they are Disjoint). " +"For geography -- tolerance is 0.00001 meters (so any points that close are " +"considered to intersect)" +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:2056 +#, no-c-format +msgid "" +" boolean ST_Intersects geometry geomA geometry geomB boolean " +"ST_Intersects geography geogA geography geogB " +msgstr "" + +#. Tag: para +#: reference_measure.xml:2088 +#, no-c-format +msgid "" +"Do not call with a GEOMETRYCOLLECTION as an argument for " +"geometry version. The geography version supports GEOMETRYCOLLECTION since " +"its a thin wrapper around distance implementation." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2092 +#, no-c-format +msgid "Performed by the GEOS module (for geometry), geography is native" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2093 +#, no-c-format +msgid "Availability: 1.5 support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2100 +#, no-c-format +msgid "" +"For geography, this function has a distance tolerance of about 0.00001 " +"meters and uses the sphere rather than spheroid calculation." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2107 +#, no-c-format +msgid "" +"&sfs_compliant; s2.1.1.2 //s2.1.13.3 - ST_Intersects(g1, g2 ) --> Not " +"(ST_Disjoint(g1, g2 ))" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2110 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.27" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2114 +#, no-c-format +msgid "" +"SELECT ST_Intersects('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, 0 2 )'::" +"geometry);\n" +" st_intersects\n" +"---------------\n" +" f\n" +"(1 row)\n" +"SELECT ST_Intersects('POINT(0 0)'::geometry, 'LINESTRING ( 0 0, 0 2 )'::" +"geometry);\n" +" st_intersects\n" +"---------------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: title +#: reference_measure.xml:2117 reference_measure.xml:2167 +#, no-c-format +msgid "Geography Examples" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2118 +#, no-c-format +msgid "" +"SELECT ST_Intersects(\n" +" ST_GeographyFromText('SRID=4326;LINESTRING(-43.23456 " +"72.4567,-43.23456 72.4568)'),\n" +" ST_GeographyFromText('SRID=4326;POINT(-43.23456 " +"72.4567772)')\n" +" );\n" +"\n" +" st_intersects\n" +"---------------\n" +"t" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2122 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2127 +#, no-c-format +msgid "ST_Length" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2129 +#, no-c-format +msgid "" +"Returns the 2d length of the geometry if it is a linestring or " +"multilinestring. geometry are in units of spatial reference and geography " +"are in meters (default spheroid)" +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:2132 +#, no-c-format +msgid "" +" float ST_Length " +"geometry a_2dlinestring float " +"ST_Length geography geog boolean use_spheroid=true " +"" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2147 +#, no-c-format +msgid "" +"For geometry: Returns the cartesian 2D length of the geometry if it is a " +"linestring, multilinestring, ST_Curve, ST_MultiCurve. 0 is returned for " +"areal geometries. For areal geometries use ST_Perimeter. Geometry: " +"Measurements are in the units of the spatial reference system of the " +"geometry. Geography: Units are in meters and also acts as a Perimeter " +"function for areal geogs." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2151 +#, no-c-format +msgid "" +"Currently for geometry this is an alias for ST_Length2D, but this may change " +"to support higher dimensions." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2152 +#, no-c-format +msgid "" +"Changed: 2.0.0 Breaking change -- in prior versions applying this to a MULTI/" +"POLYGON of type geography would give you the perimeter of the POLYGON/" +"MULTIPOLYGON. In 2.0.0 this was changed to return 0 to be in line with " +"geometry behavior. Please use ST_Perimeter if you want the perimeter of a " +"polygon" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2154 +#, no-c-format +msgid "" +"For geography measurement defaults spheroid measurement. To use the faster " +"less accurate sphere use ST_Length(gg,false);" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2155 reference_measure.xml:2660 +#, no-c-format +msgid "&sfs_compliant; s2.1.5.1" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2156 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.2, 9.3.4" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2157 +#, no-c-format +msgid "Availability: 1.5.0 geography support was introduced in 1.5." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2162 +#, no-c-format +msgid "" +"Return length in feet for line string. Note this is in feet because 2249 is " +"Mass State Plane Feet" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2164 +#, no-c-format +msgid "" +"SELECT ST_Length(ST_GeomFromText('LINESTRING(743238 2967416,743238 " +"2967450,743265 2967450,\n" +"743265.625 2967416,743238 2967416)',2249));\n" +"st_length\n" +"---------\n" +" 122.630744000095\n" +"\n" +"\n" +"--Transforming WGS 84 linestring to Massachusetts state plane meters\n" +"SELECT ST_Length(\n" +" ST_Transform(\n" +" ST_GeomFromEWKT('SRID=4326;LINESTRING(-72.1260 42.45, " +"-72.1240 42.45666, -72.123 42.1546)'),\n" +" 26986\n" +" )\n" +");\n" +"st_length\n" +"---------\n" +"34309.4563576191" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2168 +#, no-c-format +msgid "Return length of WGS 84 geography line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2169 +#, no-c-format +msgid "" +"-- default calculation is using a sphere rather than spheroid\n" +"SELECT ST_Length(the_geog) As length_spheroid, ST_Length(the_geog,false) As " +"length_sphere\n" +"FROM (SELECT ST_GeographyFromText(\n" +"'SRID=4326;LINESTRING(-72.1260 42.45, -72.1240 42.45666, -72.123 42.1546)') " +"As the_geog)\n" +" As foo;\n" +" length_spheroid | length_sphere\n" +"------------------+------------------\n" +" 34310.5703627305 | 34346.2060960742\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2173 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2179 +#, no-c-format +msgid "ST_Length2D" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2181 +#, no-c-format +msgid "" +"Returns the 2-dimensional length of the geometry if it is a " +"linestring or multi-linestring. This is an alias for ST_Length" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2187 +#, no-c-format +msgid "" +"float ST_Length2D " +"geometry a_2dlinestring" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2197 +#, no-c-format +msgid "" +"Returns the 2-dimensional length of the geometry if it is a linestring " +"or multi-linestring. This is an alias for ST_Length" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2206 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2212 +#, no-c-format +msgid "ST_3DLength" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2214 +#, no-c-format +msgid "" +"Returns the 3-dimensional or 2-dimensional length of the geometry if it is a " +"linestring or multi-linestring." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2220 +#, no-c-format +msgid "" +"float ST_3DLength " +"geometry a_3dlinestring" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2230 +#, no-c-format +msgid "" +"Returns the 3-dimensional or 2-dimensional length of the geometry if it is a " +"linestring or multi-linestring. For 2-d lines it will just return the 2-d " +"length (same as ST_Length and ST_Length2D)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2233 +#, no-c-format +msgid "Changed: 2.0.0 In prior versions this used to be called ST_Length3D" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2240 +#, no-c-format +msgid "" +"Return length in feet for a 3D cable. Note this is in feet because 2249 is " +"Mass State Plane Feet" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2242 +#, no-c-format +msgid "" +"SELECT ST_3DLength(ST_GeomFromText('LINESTRING(743238 2967416 1,743238 " +"2967450 1,743265 2967450 3,\n" +"743265.625 2967416 3,743238 2967416 3)',2249));\n" +"ST_3DLength\n" +"-----------\n" +"122.704716741457" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2249 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2255 +#, no-c-format +msgid "ST_Length_Spheroid" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2257 +#, no-c-format +msgid "" +"Calculates the 2D or 3D length of a linestring/multilinestring on an " +"ellipsoid. This is useful if the coordinates of the geometry are in " +"longitude/latitude and a length is desired without reprojection." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2264 +#, no-c-format +msgid "" +"float ST_Length_Spheroid " +"geometry a_linestring spheroid a_spheroid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2275 +#, no-c-format +msgid "" +"Calculates the length of a geometry on an ellipsoid. This is useful if the " +"coordinates of the geometry are in longitude/latitude and a length is " +"desired without reprojection. The ellipsoid is a separate database type and " +"can be constructed as follows:" +msgstr "" + +#. Tag: literallayout +#: reference_measure.xml:2281 reference_measure.xml:2333 +#, no-c-format +msgid "" +"SPHEROID[<NAME>,<SEMI-MAJOR\n" +" AXIS>,<INVERSE FLATTENING>]" +msgstr "" + +#. Tag: literallayout +#: reference_measure.xml:2284 reference_measure.xml:2336 +#, no-c-format +msgid "SPHEROID[\"GRS_1980\",6378137,298.257222101]" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2285 reference_measure.xml:2337 +#, no-c-format +msgid "Will return 0 for anything that is not a MULTILINESTRING or LINESTRING" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2294 +#, no-c-format +msgid "" +"SELECT ST_Length_Spheroid( geometry_column,\n" +" 'SPHEROID[\"GRS_1980\",6378137,298.257222101]' )\n" +" FROM geometry_table;\n" +"\n" +"SELECT ST_Length_Spheroid( the_geom, sph_m ) As tot_len,\n" +"ST_Length_Spheroid(ST_GeometryN(the_geom,1), sph_m) As len_line1,\n" +"ST_Length_Spheroid(ST_GeometryN(the_geom,2), sph_m) As len_line2\n" +" FROM (SELECT ST_GeomFromText('MULTILINESTRING" +"((-118.584 38.374,-118.583 38.5),\n" +" (-71.05957 42.3589 , -71.061 43))') As the_geom,\n" +"CAST('SPHEROID[\"GRS_1980\",6378137,298.257222101]' As spheroid) As sph_m) " +"as foo;\n" +" tot_len | len_line1 | len_line2\n" +"------------------+------------------+------------------\n" +" 85204.5207562955 | 13986.8725229309 | 71217.6482333646\n" +"\n" +" --3D\n" +"SELECT ST_Length_Spheroid( the_geom, sph_m ) As tot_len,\n" +"ST_Length_Spheroid(ST_GeometryN(the_geom,1), sph_m) As len_line1,\n" +"ST_Length_Spheroid(ST_GeometryN(the_geom,2), sph_m) As len_line2\n" +" FROM (SELECT ST_GeomFromEWKT('MULTILINESTRING" +"((-118.584 38.374 20,-118.583 38.5 30),\n" +" (-71.05957 42.3589 75, -71.061 43 90))') As the_geom,\n" +"CAST('SPHEROID[\"GRS_1980\",6378137,298.257222101]' As spheroid) As sph_m) " +"as foo;\n" +"\n" +" tot_len | len_line1 | len_line2\n" +"------------------+-----------------+------------------\n" +" 85204.5259107402 | 13986.876097711 | 71217.6498130292" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2301 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2307 +#, no-c-format +msgid "ST_Length2D_Spheroid" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2309 +#, no-c-format +msgid "" +"Calculates the 2D length of a linestring/multilinestring on an ellipsoid. " +"This is useful if the coordinates of the geometry are in longitude/latitude " +"and a length is desired without reprojection." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2316 +#, no-c-format +msgid "" +"float ST_Length2D_Spheroid " +"geometry a_linestring spheroid a_spheroid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2327 +#, no-c-format +msgid "" +"Calculates the 2D length of a geometry on an ellipsoid. This is useful if " +"the coordinates of the geometry are in longitude/latitude and a length is " +"desired without reprojection. The ellipsoid is a separate database type and " +"can be constructed as follows:" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2338 +#, no-c-format +msgid "" +"This is much like and except it will throw away the Z coordinate in " +"calculations." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2346 +#, no-c-format +msgid "" +"SELECT ST_Length2D_Spheroid( geometry_column,\n" +" 'SPHEROID[\"GRS_1980\",6378137,298.257222101]' )\n" +" FROM geometry_table;\n" +"\n" +"SELECT ST_Length2D_Spheroid( the_geom, sph_m ) As tot_len,\n" +"ST_Length2D_Spheroid(ST_GeometryN(the_geom,1), sph_m) As len_line1,\n" +"ST_Length2D_Spheroid(ST_GeometryN(the_geom,2), sph_m) As len_line2\n" +" FROM (SELECT ST_GeomFromText('MULTILINESTRING" +"((-118.584 38.374,-118.583 38.5),\n" +" (-71.05957 42.3589 , -71.061 43))') As the_geom,\n" +"CAST('SPHEROID[\"GRS_1980\",6378137,298.257222101]' As spheroid) As sph_m) " +"as foo;\n" +" tot_len | len_line1 | len_line2\n" +"------------------+------------------+------------------\n" +" 85204.5207562955 | 13986.8725229309 | 71217.6482333646\n" +"\n" +" --3D Observe same answer\n" +"SELECT ST_Length2D_Spheroid( the_geom, sph_m ) As tot_len,\n" +"ST_Length2D_Spheroid(ST_GeometryN(the_geom,1), sph_m) As len_line1,\n" +"ST_Length2D_Spheroid(ST_GeometryN(the_geom,2), sph_m) As len_line2\n" +" FROM (SELECT ST_GeomFromEWKT('MULTILINESTRING" +"((-118.584 38.374 20,-118.583 38.5 30),\n" +" (-71.05957 42.3589 75, -71.061 43 90))') As the_geom,\n" +"CAST('SPHEROID[\"GRS_1980\",6378137,298.257222101]' As spheroid) As sph_m) " +"as foo;\n" +"\n" +" tot_len | len_line1 | len_line2\n" +"------------------+------------------+------------------\n" +" 85204.5207562955 | 13986.8725229309 | 71217.6482333646" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2353 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2359 +#, no-c-format +msgid "ST_3DLength_Spheroid" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2361 +#, no-c-format +msgid "" +"Calculates the length of a geometry on an ellipsoid, taking the " +"elevation into account. This is just an alias for ST_Length_Spheroid." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2367 +#, no-c-format +msgid "" +"float ST_3DLength_Spheroid " +"geometry a_linestring spheroid a_spheroid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2378 +#, no-c-format +msgid "" +"Calculates the length of a geometry on an ellipsoid, taking the " +"elevation into account. This is just an alias for ST_Length_Spheroid." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2382 +#, no-c-format +msgid "" +"Changed: 2.0.0 In prior versions this used to return 0 for anything that is " +"not a MULTILINESTRING or LINESTRING and in 2.0.0 on returns the perimeter of " +"if given a polgon." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2383 +#, no-c-format +msgid "This function is just an alias for ST_Length_Spheroid." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2385 +#, no-c-format +msgid "" +"Changed: 2.0.0 In prior versions this used to be called ST_Length3d_Spheroid" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2392 +#, no-c-format +msgid "See ST_Length_Spheroid" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2399 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2405 +#, no-c-format +msgid "ST_LongestLine" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2407 +#, no-c-format +msgid "" +"Returns the 2-dimensional longest line points of two geometries. The " +"function will only return the first longest line if more than one, that the " +"function finds. The line returned will always start in g1 and end in g2. The " +"length of the line this function returns will always be the same as " +"st_maxdistance returns for g1 and g2." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2415 +#, no-c-format +msgid "" +"geometry ST_LongestLine " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2430 +#, no-c-format +msgid "" +"Returns the 2-dimensional longest line between the points of two geometries." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2448 +#, no-c-format +msgid "Longest line between point and line" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2451 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_LongestLine('POINT(100 100)'::geometry, \n" +" 'LINESTRING (20 80, 98 190, 110 180, 50 75 )'::geometry)\n" +" ) As lline;\n" +"\n" +" \n" +" lline\n" +"-----------------\n" +"LINESTRING(100 100,98 190)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2459 +#, no-c-format +msgid "longest line between polygon and polygon" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2462 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_LongestLine(\n" +" ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ) \n" +" ) As llinewkt;\n" +" \n" +" lline\n" +"-----------------\n" +"LINESTRING(20 40,121.111404660392 186.629392246051)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2478 +#, no-c-format +msgid "" +"longest straight distance to travel from one part of an elegant city to the " +"other Note the max distance = to the length of the line." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2482 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_LongestLine(c.the_geom, c.the_geom)) As llinewkt, \n" +" ST_MaxDistance(c.the_geom,c.the_geom) As max_dist, \n" +" ST_Length(ST_LongestLine(c.the_geom, c.the_geom)) As lenll \n" +"FROM (SELECT ST_BuildArea(ST_Collect(the_geom)) As the_geom\n" +" FROM (SELECT ST_Translate(ST_SnapToGrid(ST_Buffer(ST_Point(50 ," +"generate_series(50,190, 50) \n" +" ),40, 'quad_segs=2'),1), x, 0) As the_geom \n" +" FROM generate_series(1,100,50) As x) AS foo\n" +") As c;\n" +" \n" +" llinewkt | max_dist | lenll\n" +"---------------------------+------------------+------------------\n" +" LINESTRING(23 22,129 178) | 188.605408193933 | 188.605408193933" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2493 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2499 +#, no-c-format +msgid "ST_OrderingEquals" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2501 +#, no-c-format +msgid "" +"Returns true if the given geometries represent the same geometry and points " +"are in the same directional order." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2507 +#, no-c-format +msgid "" +"boolean ST_OrderingEquals " +"geometry A " +"geometry B" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2518 +#, no-c-format +msgid "" +"ST_OrderingEquals compares two geometries and returns t (TRUE) if the " +"geometries are equal and the coordinates are in the same order; otherwise it " +"returns f (FALSE)." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2523 +#, no-c-format +msgid "" +"This function is implemented as per the ArcSDE SQL specification rather than " +"SQL-MM. http://edndoc.esri.com/arcsde/9.1/sql_api/sqlapi3." +"htm#ST_OrderingEquals" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2527 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.43" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2533 +#, no-c-format +msgid "" +"SELECT ST_OrderingEquals(ST_GeomFromText('LINESTRING(0 0, 10 10)'),\n" +" ST_GeomFromText('LINESTRING(0 0, 5 5, 10 10)'));\n" +" st_orderingequals\n" +"-----------\n" +" f\n" +"(1 row)\n" +"\n" +"SELECT ST_OrderingEquals(ST_GeomFromText('LINESTRING(0 0, 10 10)'),\n" +" ST_GeomFromText('LINESTRING(0 0, 0 0, 10 10)'));\n" +" st_orderingequals\n" +"-----------\n" +" t\n" +"(1 row)\n" +"\n" +"SELECT ST_OrderingEquals(ST_Reverse(ST_GeomFromText('LINESTRING(0 0, 10 " +"10)')),\n" +" ST_GeomFromText('LINESTRING(0 0, 0 0, 10 10)'));\n" +" st_orderingequals\n" +"-----------\n" +" f\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2537 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2543 +#, no-c-format +msgid "ST_Overlaps" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2545 +#, no-c-format +msgid "" +"Returns TRUE if the Geometries share space, are of the same dimension, but " +"are not completely contained by each other." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2550 +#, no-c-format +msgid "" +"boolean ST_Overlaps " +"geometry A " +"geometry B" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2561 +#, no-c-format +msgid "" +"Returns TRUE if the Geometries \"spatially overlap\". By that we mean they " +"intersect, but one does not completely contain another." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2566 reference_measure.xml:2892 +#: reference_measure.xml:2906 +#, no-c-format +msgid "Do not call with a GeometryCollection as an argument" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2568 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_Overlaps." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2576 reference_measure.xml:2912 +#: reference_measure.xml:3117 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.2 // s2.1.13.3" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2577 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.32" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2593 +#, no-c-format +msgid "MULTIPOINT / MULTIPOINT" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2617 +#, no-c-format +msgid "" +"--a point on a line is contained by the line and is of a lower dimension, " +"and therefore does not overlap the line\n" +" nor crosses\n" +"\n" +"SELECT ST_Overlaps(a,b) As a_overlap_b,\n" +" ST_Crosses(a,b) As a_crosses_b,\n" +" ST_Intersects(a, b) As a_intersects_b, ST_Contains(b,a) As " +"b_contains_a\n" +"FROM (SELECT ST_GeomFromText('POINT(1 0.5)') As a, ST_GeomFromText" +"('LINESTRING(1 0, 1 1, 3 5)') As b)\n" +" As foo\n" +"\n" +"a_overlap_b | a_crosses_b | a_intersects_b | b_contains_a\n" +"------------+-------------+----------------+--------------\n" +"f | f | t | t\n" +"\n" +"--a line that is partly contained by circle, but not fully is defined as " +"intersecting and crossing,\n" +"-- but since of different dimension it does not overlap\n" +"SELECT ST_Overlaps(a,b) As a_overlap_b, ST_Crosses(a,b) As a_crosses_b,\n" +" ST_Intersects(a, b) As a_intersects_b,\n" +" ST_Contains(a,b) As a_contains_b\n" +"FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 0.5)'), 3) As a, " +"ST_GeomFromText('LINESTRING(1 0, 1 1, 3 5)') As b)\n" +" As foo;\n" +"\n" +" a_overlap_b | a_crosses_b | a_intersects_b | a_contains_b\n" +"-------------+-------------+----------------+--------------\n" +" f | t | t | f\n" +"\n" +" -- a 2-dimensional bent hot dog (aka buffered line string) that intersects " +"a circle,\n" +" -- but is not fully contained by the circle is defined as " +"overlapping since they are of the same dimension,\n" +"-- but it does not cross, because the intersection of the 2 is of the " +"same dimension\n" +"-- as the maximum dimension of the 2\n" +"\n" +"SELECT ST_Overlaps(a,b) As a_overlap_b, ST_Crosses(a,b) As a_crosses_b, " +"ST_Intersects(a, b) As a_intersects_b,\n" +"ST_Contains(b,a) As b_contains_a,\n" +"ST_Dimension(a) As dim_a, ST_Dimension(b) as dim_b, ST_Dimension" +"(ST_Intersection(a,b)) As dima_intersection_b\n" +"FROM (SELECT ST_Buffer(ST_GeomFromText('POINT(1 0.5)'), 3) As a,\n" +" ST_Buffer(ST_GeomFromText('LINESTRING(1 0, 1 1, 3 5)'),0.5) As b)\n" +" As foo;\n" +"\n" +" a_overlap_b | a_crosses_b | a_intersects_b | b_contains_a | dim_a | dim_b | " +"dima_intersection_b\n" +"-------------+-------------+----------------+--------------+-------+-------" +"+---------------------\n" +" t | f | t | f | 2 | 2 " +"| 2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2625 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2630 +#, no-c-format +msgid "ST_Perimeter" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2632 +#, no-c-format +msgid "" +"Return the length measurement of the boundary of an ST_Surface or " +"ST_MultiSurface geometry or geography. (Polygon, Multipolygon). geometry " +"measurement is in units of spatial reference and geography is in meters." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2637 +#, no-c-format +msgid "" +"float ST_Perimeter " +"geometry g1" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2643 +#, no-c-format +msgid "" +"float ST_Perimeter " +"geography geog " +"boolean use_spheroid=true" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2653 +#, no-c-format +msgid "" +"Returns the 2D perimeter of the geometry/geography if it is a ST_Surface, " +"ST_MultiSurface (Polygon, Multipolygon). 0 is returned for non-areal " +"geometries. For linestrings use ST_Length. Measurements for geometry are in " +"the units of the spatial reference system of the geometry. Measurements for " +"geography are in meters. If use_spheroid is set to false, " +"then will model earth as a sphere instead of a spheroid." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2658 +#, no-c-format +msgid "" +"Currently this is an alias for ST_Perimeter2D, but this may change to " +"support higher dimensions." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2661 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 8.1.3, 9.5.4" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2662 +#, no-c-format +msgid "Availability 2.0.0: Support for geography was introduced" +msgstr "" + +#. Tag: title +#: reference_measure.xml:2666 +#, no-c-format +msgid "Examples: Geometry" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2667 +#, no-c-format +msgid "" +"Return perimeter in feet for polygon and multipolygon. Note this is in feet " +"because 2249 is Mass State Plane Feet" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2669 +#, no-c-format +msgid "" +"SELECT ST_Perimeter(ST_GeomFromText('POLYGON((743238 2967416,743238 " +"2967450,743265 2967450,\n" +"743265.625 2967416,743238 2967416))', 2249));\n" +"st_perimeter\n" +"---------\n" +" 122.630744000095\n" +"(1 row)\n" +"\n" +"SELECT ST_Perimeter(ST_GeomFromText('MULTIPOLYGON(((763104.471273676 " +"2949418.44119003,\n" +"763104.477769673 2949418.42538203,\n" +"763104.189609677 2949418.22343004,763104.471273676 2949418.44119003)),\n" +"((763104.471273676 2949418.44119003,763095.804579742 2949436.33850239,\n" +"763086.132105649 2949451.46730207,763078.452329651 2949462.11549407,\n" +"763075.354136904 2949466.17407812,763064.362142565 2949477.64291974,\n" +"763059.953961626 2949481.28983009,762994.637609571 2949532.04103014,\n" +"762990.568508415 2949535.06640477,762986.710889563 2949539.61421415,\n" +"763117.237897679 2949709.50493431,763235.236617789 2949617.95619822,\n" +"763287.718121842 2949562.20592617,763111.553321674 2949423.91664605,\n" +"763104.471273676 2949418.44119003)))', 2249));\n" +"st_perimeter\n" +"---------\n" +" 845.227713366825\n" +"(1 row)" +msgstr "" + +#. Tag: title +#: reference_measure.xml:2672 +#, no-c-format +msgid "Examples: Geography" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2673 +#, no-c-format +msgid "" +"Return perimeter in meters and feet for polygon and multipolygon. Note this " +"is geography (WGS 84 long lat)" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2674 +#, no-c-format +msgid "" +"SELECT ST_Perimeter(geog) As per_meters, ST_Perimeter(geog)/0.3048 As " +"per_ft \n" +"FROM ST_GeogFromText('POLYGON((-71.1776848522251 " +"42.3902896512902,-71.1776843766326 42.3903829478009,\n" +"-71.1775844305465 42.3903826677917,-71.1775825927231 " +"42.3902893647987,-71.1776848522251 42.3902896512902))') As geog;\n" +"\n" +" per_meters | per_ft\n" +"-----------------+------------------\n" +"37.3790462565251 | 122.634666195949\n" +"\n" +"\n" +"-- Multipolygon example --\n" +"SELECT ST_Perimeter(geog) As per_meters, ST_Perimeter(geog,false) As " +"per_sphere_meters, ST_Perimeter(geog)/0.3048 As per_ft \n" +"FROM ST_GeogFromText('MULTIPOLYGON(((-71.1044543107478 " +"42.340674480411,-71.1044542869917 42.3406744369506,\n" +"-71.1044553562977 42.340673886454,-71.1044543107478 42.340674480411)),\n" +"((-71.1044543107478 42.340674480411,-71.1044860600303 " +"42.3407237015564,-71.1045215770124 42.3407653385914,\n" +"-71.1045498002983 42.3407946553165,-71.1045611902745 " +"42.3408058316308,-71.1046016507427 42.340837442371,\n" +"-71.104617893173 42.3408475056957,-71.1048586153981 " +"42.3409875993595,-71.1048736143677 42.3409959528211,\n" +"-71.1048878050242 42.3410084812078,-71.1044020965803 42.3414730072048,\n" +"-71.1039672113619 42.3412202916693,-71.1037740497748 42.3410666421308,\n" +"-71.1044280218456 42.3406894151355,-71.1044543107478 42.340674480411)))') As " +"geog;\n" +"\n" +" per_meters | per_sphere_meters | per_ft\n" +"------------------+-------------------+------------------\n" +" 257.634283683311 | 257.412311446337 | 845.256836231335" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2678 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2684 +#, no-c-format +msgid "ST_Perimeter2D" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2686 +#, no-c-format +msgid "" +"Returns the 2-dimensional perimeter of the geometry, if it is a polygon or " +"multi-polygon. This is currently an alias for ST_Perimeter." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2692 +#, no-c-format +msgid "" +"float ST_Perimeter2D " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2702 +#, no-c-format +msgid "" +"Returns the 2-dimensional perimeter of the geometry, if it is a polygon or " +"multi-polygon." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2707 +#, no-c-format +msgid "" +"This is currently an alias for ST_Perimeter. In future versions ST_Perimeter " +"may return the highest dimension perimeter for a geometry. This is still " +"under consideration" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2721 +#, no-c-format +msgid "ST_3DPerimeter" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2723 +#, no-c-format +msgid "" +"Returns the 3-dimensional perimeter of the geometry, if it is a polygon or " +"multi-polygon." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2729 +#, no-c-format +msgid "" +"float ST_3DPerimeter " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2739 +#, no-c-format +msgid "" +"Returns the 3-dimensional perimeter of the geometry, if it is a polygon or " +"multi-polygon. If the geometry is 2-dimensional, then the 2-dimensional " +"perimeter is returned." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2742 +#, no-c-format +msgid "Changed: 2.0.0 In prior versions this used to be called ST_Perimeter3D" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2748 +#, no-c-format +msgid "" +"Perimeter of a slightly elevated polygon in the air in Massachusetts state " +"plane feet" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2749 +#, no-c-format +msgid "" +"SELECT ST_3DPerimeter(the_geom), ST_Perimeter2d(the_geom), ST_Perimeter" +"(the_geom) FROM\n" +" (SELECT ST_GeomFromEWKT('SRID=2249;POLYGON((743238 " +"2967416 2,743238 2967450 1,\n" +"743265.625 2967416 1,743238 2967416 2))') As the_geom) As foo;\n" +"\n" +" ST_3DPerimeter | st_perimeter2d | st_perimeter\n" +"------------------+------------------+------------------\n" +" 105.465793597674 | 105.432997272188 | 105.432997272188" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2756 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2762 +#, no-c-format +msgid "ST_PointOnSurface" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2764 +#, no-c-format +msgid "Returns a POINT guaranteed to lie on the surface." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2769 +#, no-c-format +msgid "" +"geometry ST_PointOnSurface " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2781 +#, no-c-format +msgid "Returns a POINT guaranteed to intersect a surface." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2783 +#, no-c-format +msgid "&sfs_compliant; s3.2.14.2 // s3.2.18.2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2784 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM 3: 8.1.5, 9.5.6. According to the specs, " +"ST_PointOnSurface works for surface geometries (POLYGONs, MULTIPOLYGONS, " +"CURVED POLYGONS). So PostGIS seems to be extending what the spec allows " +"here. Most databases Oracle,DB II, ESRI SDE seem to only support this " +"function for surfaces. SQL Server 2008 like PostGIS supports for all common " +"geometries." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2793 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_PointOnSurface('POINT(0 5)'::geometry));\n" +" st_astext\n" +"------------\n" +" POINT(0 5)\n" +"(1 row)\n" +"\n" +"SELECT ST_AsText(ST_PointOnSurface('LINESTRING(0 5, 0 10)'::geometry));\n" +" st_astext\n" +"------------\n" +" POINT(0 5)\n" +"(1 row)\n" +"\n" +"SELECT ST_AsText(ST_PointOnSurface('POLYGON((0 0, 0 5, 5 5, 5 0, 0 0))'::" +"geometry));\n" +" st_astext\n" +"----------------\n" +" POINT(2.5 2.5)\n" +"(1 row)\n" +"\n" +"SELECT ST_AsEWKT(ST_PointOnSurface(ST_GeomFromEWKT('LINESTRING(0 5 1, 0 0 1, " +"0 10 2)')));\n" +" st_asewkt\n" +"----------------\n" +" POINT(0 0 1)\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2799 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2805 +#, no-c-format +msgid "ST_Project" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2807 +#, no-c-format +msgid "" +"Returns a POINT projected from a start point using a " +"bearing and distance." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2812 +#, no-c-format +msgid "" +"geography ST_Project " +"geography g1 " +"float distance " +"float azimuth" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2828 +#, no-c-format +msgid "" +"Returns a POINT projected from a start point using an " +"azimuth (bearing) and distance." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2829 +#, no-c-format +msgid "" +"Distance, azimuth and projection are all aspects of the same operation, " +"describing (or in the case of projection, constructing) the relationship " +"between two points on the world." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2830 +#, no-c-format +msgid "" +"The azimuth is sometimes called the heading or the bearing in navigation. It " +"is measured relative to true north (azimuth zero). East is azimuth 90, south " +"is azimuth 180, west is azimuth 270." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2831 +#, no-c-format +msgid "The distance is given in meters." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2838 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Project('POINT(0 0)'::geography, 100000, 45));\n" +" st_astext\n" +" ------------------------------------------\n" +" POINT(0.63523102912532 0.63947233472882)\n" +" (1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2844 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2850 +#, no-c-format +msgid "ST_Relate" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2852 +#, no-c-format +msgid "" +"Returns true if this Geometry is spatially related to anotherGeometry, by " +"testing for intersections between the Interior, Boundary and Exterior of the " +"two geometries as specified by the values in the intersectionMatrixPattern. " +"If no intersectionMatrixPattern is passed in, then returns the maximum " +"intersectionMatrixPattern that relates the 2 geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_measure.xml:2860 +#, no-c-format +msgid "" +" boolean ST_Relate " +"geometry geomA " +"geometry geomB " +"text intersectionMatrixPattern text " +"ST_Relate geometry " +"geomA geometry " +"geomB " +"text ST_Relate " +"geometry geomA " +"geometry geomB " +"int BoundaryNodeRule " +msgstr "" + +#. Tag: para +#: reference_measure.xml:2886 +#, no-c-format +msgid "" +"Version 1: Takes geomA, geomB, intersectionMatrix and Returns 1 (TRUE) if " +"this Geometry is spatially related to anotherGeometry, by testing for " +"intersections between the Interior, Boundary and Exterior of the two " +"geometries as specified by the values in the DE-9IM matrix pattern." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2891 +#, no-c-format +msgid "" +"This is especially useful for testing compound checks of intersection, " +"crosses, etc in one step." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2894 +#, no-c-format +msgid "" +"This is the \"allowable\" version that returns a boolean, not an integer. " +"This is defined in OGC spec" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2897 +#, no-c-format +msgid "" +"This DOES NOT automagically include an index call. The reason for that is " +"some relationships are anti e.g. Disjoint. If you are using a relationship " +"pattern that requires intersection, then include the && index call." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2902 +#, no-c-format +msgid "" +"Version 2: Takes geomA and geomB and returns the " +msgstr "" + +#. Tag: para +#: reference_measure.xml:2904 +#, no-c-format +msgid "" +"Version 3: same as version 2 bu allows to specify a boundary node rule (1:" +"OGC/MOD2, 2:Endpoint, 3:MultivalentEndpoint, 4:MonovalentEndpoint)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2908 +#, no-c-format +msgid "not in OGC spec, but implied. see s2.1.13.2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2913 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.25" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2914 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 - added support for specifying boundary node rule (requires " +"GEOS >= 3.0)." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2921 +#, no-c-format +msgid "" +"--Find all compounds that intersect and not touch a poly (interior " +"intersects)\n" +"SELECT l.* , b.name As poly_name\n" +" FROM polys As b\n" +"INNER JOIN compounds As l\n" +"ON (p.the_geom && b.the_geom\n" +"AND ST_Relate(l.the_geom, b.the_geom,'T********'));\n" +"\n" +"SELECT ST_Relate(ST_GeometryFromText('POINT(1 2)'), ST_Buffer" +"(ST_GeometryFromText('POINT(1 2)'),2));\n" +"st_relate\n" +"-----------\n" +"0FFFFF212\n" +"\n" +"SELECT ST_Relate(ST_GeometryFromText('LINESTRING(1 2, 3 4)'), " +"ST_GeometryFromText('LINESTRING(5 6, 7 8)'));\n" +"st_relate\n" +"-----------\n" +"FF1FF0102\n" +"\n" +"\n" +"SELECT ST_Relate(ST_GeometryFromText('POINT(1 2)'), ST_Buffer" +"(ST_GeometryFromText('POINT(1 2)'),2), '0FFFFF212');\n" +"st_relate\n" +"-----------\n" +"t\n" +"\n" +"SELECT ST_Relate(ST_GeometryFromText('POINT(1 2)'), ST_Buffer" +"(ST_GeometryFromText('POINT(1 2)'),2), '*FF*FF212');\n" +"st_relate\n" +"-----------\n" +"t" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2928 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2934 +#, no-c-format +msgid "ST_RelateMatch" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2936 +#, no-c-format +msgid "" +"Returns true if intersectionMattrixPattern1 implies " +"intersectionMatrixPattern2" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2941 +#, no-c-format +msgid "" +"boolean ST_RelateMatch " +"text intersectionMatrix text intersectionMatrixPattern" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2952 +#, no-c-format +msgid "" +"Takes intersectionMatrix and intersectionMatrixPattern and Returns true if " +"the intersectionMatrix satisfies the intersectionMatrixPattern. For more " +"information refer to ." +msgstr "" + +#. Tag: para +#: reference_measure.xml:2955 +#, no-c-format +msgid "Availability: 2.0.0 - requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:2961 +#, no-c-format +msgid "" +"SELECT ST_RelateMatch('101202FFF', 'TTTTTTFFF') ;\n" +"-- result --\n" +"t\n" +"--example of common intersection matrix patterns and example matrices\n" +"-- comparing relationships of involving one invalid geometry and ( a line " +"and polygon that intersect at interior and boundary)\n" +"SELECT mat.name, pat.name, ST_RelateMatch(mat.val, pat.val) As satisfied\n" +" FROM \n" +" ( VALUES ('Equality', 'T1FF1FFF1'),\n" +" ('Overlaps', 'T*T***T**'),\n" +" ('Within', 'T*F**F***'),\n" +" ('Disjoint', 'FF*FF****') As pat(name,val)\n" +" CROSS JOIN \n" +" ( VALUES ('Self intersections (invalid)', '111111111'),\n" +" ('IE2_BI1_BB0_BE1_EI1_EE2', 'FF2101102'),\n" +" ('IB1_IE1_BB0_BE0_EI2_EI1_EE2', 'F11F00212')\n" +" ) As mat(name,val);" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2967 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:2973 +#, no-c-format +msgid "ST_ShortestLine" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:2975 +#, no-c-format +msgid "Returns the 2-dimensional shortest line between two geometries" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:2980 +#, no-c-format +msgid "" +"geometry ST_ShortestLine " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:2995 +#, no-c-format +msgid "" +"Returns the 2-dimensional shortest line between two geometries. The function " +"will only return the first shortest line if more than one, that the function " +"finds. If g1 and g2 intersects in just one point the function will return a " +"line with both start and end in that intersection-point. If g1 and g2 are " +"intersecting with more than one point the function will return a line with " +"start and end in the same point but it can be any of the intersecting " +"points. The line returned will always start in g1 and end in g2. The length " +"of the line this function returns will always be the same as st_distance " +"returns for g1 and g2." +msgstr "" + +#. Tag: para +#: reference_measure.xml:3019 +#, no-c-format +msgid "Shortest line between point and linestring" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:3022 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_ShortestLine('POINT(100 100)'::geometry, \n" +" 'LINESTRING (20 80, 98 190, 110 180, 50 75 )'::geometry)\n" +" ) As sline;\n" +"\n" +" \n" +" sline\n" +"-----------------\n" +"LINESTRING(100 100,73.0769230769231 115.384615384615)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3030 +#, no-c-format +msgid "shortest line between polygon and polygon" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:3033 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_ShortestLine(\n" +" ST_GeomFromText('POLYGON((175 150, 20 40, 50 60, 125 " +"100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ) \n" +" ) As slinewkt;\n" +" \n" +" LINESTRING(140.752120669087 125.695053378061,121.111404660392 " +"153.370607753949)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3045 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_measure.xml:3051 +#, no-c-format +msgid "ST_Touches" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:3053 +#, no-c-format +msgid "" +"Returns TRUE if the geometries have at least one point in " +"common, but their interiors do not intersect." +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:3059 +#, no-c-format +msgid "" +"boolean ST_Touches " +"geometry g1 " +"geometry g2" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3074 +#, no-c-format +msgid "" +"Returns TRUE if the only points in common between " +"g1 and g2 lie in the union of " +"the boundaries of g1 and g2. " +"The ST_Touches relation applies to all Area/Area, Line/" +"Line, Line/Area, Point/Area and Point/Line pairs of relationships, but " +"not to the Point/Point pair." +msgstr "" + +#. Tag: para +#: reference_measure.xml:3081 +#, no-c-format +msgid "In mathematical terms, this predicate is expressed as:" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3091 +#, no-c-format +msgid "The allowable DE-9IM Intersection Matrices for the two geometries are:" +msgstr "" + +#. Tag: markup +#: reference_measure.xml:3095 +#, no-c-format +msgid "FT*******" +msgstr "" + +#. Tag: markup +#: reference_measure.xml:3099 +#, no-c-format +msgid "F**T*****" +msgstr "" + +#. Tag: markup +#: reference_measure.xml:3103 +#, no-c-format +msgid "F***T****" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3112 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"using an index, use _ST_Touches instead." +msgstr "" + +#. Tag: para +#: reference_measure.xml:3118 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.28" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3124 +#, no-c-format +msgid "" +"The ST_Touches predicate returns TRUE in all the following illustrations." +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:3194 +#, no-c-format +msgid "" +"SELECT ST_Touches('LINESTRING(0 0, 1 1, 0 2)'::geometry, 'POINT(1 1)'::" +"geometry);\n" +" st_touches\n" +"------------\n" +" f\n" +"(1 row)\n" +"\n" +"SELECT ST_Touches('LINESTRING(0 0, 1 1, 0 2)'::geometry, 'POINT(0 2)'::" +"geometry);\n" +" st_touches\n" +"------------\n" +" t\n" +"(1 row)" +msgstr "" + +#. Tag: refname +#: reference_measure.xml:3200 +#, no-c-format +msgid "ST_Within" +msgstr "" + +#. Tag: refpurpose +#: reference_measure.xml:3202 +#, no-c-format +msgid "Returns true if the geometry A is completely inside geometry B" +msgstr "" + +#. Tag: funcprototype +#: reference_measure.xml:3207 +#, no-c-format +msgid "" +"boolean ST_Within " +"geometry A " +"geometry B" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3222 +#, no-c-format +msgid "" +"Returns TRUE if geometry A is completely inside geometry B. For this " +"function to make sense, the source geometries must both be of the same " +"coordinate projection, having the same SRID. It is a given that if ST_Within" +"(A,B) is true and ST_Within(B,A) is true, then the two geometries are " +"considered spatially equal." +msgstr "" + +#. Tag: para +#: reference_measure.xml:3237 +#, no-c-format +msgid "" +"This function call will automatically include a bounding box comparison that " +"will make use of any indexes that are available on the geometries. To avoid " +"index use, use the function _ST_Within." +msgstr "" + +#. Tag: para +#: reference_measure.xml:3245 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.2 // s2.1.13.3 - a.Relate(b, 'T*F**F***')" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3248 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.30" +msgstr "" + +#. Tag: programlisting +#: reference_measure.xml:3253 +#, no-c-format +msgid "" +"--a circle within a circle\n" +"SELECT ST_Within(smallc,smallc) As smallinsmall,\n" +" ST_Within(smallc, bigc) As smallinbig,\n" +" ST_Within(bigc,smallc) As biginsmall,\n" +" ST_Within(ST_Union(smallc, bigc), bigc) as unioninbig,\n" +" ST_Within(bigc, ST_Union(smallc, bigc)) as biginunion,\n" +" ST_Equals(bigc, ST_Union(smallc, bigc)) as bigisunion\n" +"FROM\n" +"(\n" +"SELECT ST_Buffer(ST_GeomFromText('POINT(50 50)'), 20) As smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(50 50)'), 40) As bigc) As foo;\n" +"--Result\n" +" smallinsmall | smallinbig | biginsmall | unioninbig | biginunion | " +"bigisunion\n" +"--------------+------------+------------+------------+------------" +"+------------\n" +" t | t | f | t | t | t\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_measure.xml:3264 +#, no-c-format +msgid ", , " +msgstr "" diff --git a/doc/po/it_IT/reference_misc.xml.po b/doc/po/it_IT/reference_misc.xml.po new file mode 100644 index 000000000..3c28a7a9b --- /dev/null +++ b/doc/po/it_IT/reference_misc.xml.po @@ -0,0 +1,855 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_misc.xml:3 +#, no-c-format +msgid "Miscellaneous Functions" +msgstr "" + +#. Tag: refname +#: reference_misc.xml:7 +#, no-c-format +msgid "ST_Accum" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:9 +#, no-c-format +msgid "Aggregate. Constructs an array of geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:14 +#, no-c-format +msgid "" +"geometry[] ST_Accum " +"geometry set geomfield" +msgstr "" + +#. Tag: title +#: reference_misc.xml:22 reference_misc.xml:64 reference_misc.xml:106 +#: reference_misc.xml:158 reference_misc.xml:229 reference_misc.xml:289 +#: reference_misc.xml:343 reference_misc.xml:396 reference_misc.xml:438 +#: reference_misc.xml:488 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_misc.xml:24 +#, no-c-format +msgid "Aggregate. Constructs an array of geometries." +msgstr "" + +#. Tag: para +#: reference_misc.xml:25 reference_misc.xml:68 reference_misc.xml:109 +#: reference_misc.xml:255 reference_misc.xml:309 reference_misc.xml:355 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was " +"introduced." +msgstr "" + +#. Tag: para +#: reference_misc.xml:26 reference_misc.xml:113 reference_misc.xml:357 +#: reference_misc.xml:447 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_misc.xml:27 reference_misc.xml:69 reference_misc.xml:110 +#: reference_misc.xml:183 reference_misc.xml:358 reference_misc.xml:448 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: para +#: reference_misc.xml:28 reference_misc.xml:70 reference_misc.xml:111 +#: reference_misc.xml:256 reference_misc.xml:310 reference_misc.xml:359 +#: reference_misc.xml:449 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_misc.xml:29 reference_misc.xml:71 reference_misc.xml:112 +#: reference_misc.xml:257 reference_misc.xml:311 reference_misc.xml:360 +#: reference_misc.xml:450 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: title +#: reference_misc.xml:34 reference_misc.xml:76 reference_misc.xml:118 +#: reference_misc.xml:188 reference_misc.xml:262 reference_misc.xml:316 +#: reference_misc.xml:364 reference_misc.xml:408 reference_misc.xml:455 +#: reference_misc.xml:499 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:36 +#, no-c-format +msgid "" +"SELECT (ST_Accum(the_geom)) As all_em, ST_AsText((ST_Accum(the_geom))[1]) As " +"grabone,\n" +"(ST_Accum(the_geom))[2:4] as grab_rest\n" +" FROM (SELECT ST_MakePoint(a*CAST(random()*10 As " +"integer), a*CAST(random()*10 As integer), a*CAST(random()*10 As integer)) As " +"the_geom\n" +" FROM generate_series(1,4) a) As foo;\n" +"\n" +"all_em|grabone | grab_rest\n" +"\n" +"-------------------------------------------------------------------------------" +"+\n" +"\n" +" {0101000080000000000000144000000000000024400000000000001040:\n" +" 0101000080000000000\n" +"00018400000000000002C400000000000003040:\n" +"0101000080000000000000354000000000000038400000000000001840:\n" +"010100008000000000000040400000000000003C400000000000003040} |\n" +" POINT(5 10) | {010100008000000000000018400000000000002C400000000000003040:\n" +" 0101000080000000000000354000000000000038400000000000001840:\n" +" 010100008000000000000040400000000000003C400000000000003040}\n" +"(1 row)" +msgstr "" + +#. Tag: title +#: reference_misc.xml:41 reference_misc.xml:83 reference_misc.xml:125 +#: reference_misc.xml:195 reference_misc.xml:268 reference_misc.xml:322 +#: reference_misc.xml:369 reference_misc.xml:415 reference_misc.xml:462 +#: reference_misc.xml:506 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: refname +#: reference_misc.xml:49 +#, no-c-format +msgid "Box2D" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:51 +#, no-c-format +msgid "" +"Returns a BOX2D representing the maximum extents of the geometry." +"" +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:56 +#, no-c-format +msgid "" +"box2d Box2D geometry " +" geomA" +msgstr "" + +#. Tag: para +#: reference_misc.xml:66 +#, no-c-format +msgid "" +"Returns a BOX2D representing the maximum extents of the geometry." +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:78 +#, no-c-format +msgid "" +"SELECT Box2D(ST_GeomFromText('LINESTRING(1 2, 3 4, 5 6)'));\n" +" box2d\n" +" ---------\n" +" BOX(1 2,5 6)\n" +"\n" +" SELECT Box2D(ST_GeomFromText('CIRCULARSTRING(220268 150415,220227 " +"150505,220227 150406)'));\n" +" box2d\n" +" --------\n" +" BOX(220186.984375 150406,220288.25 150506.140625)" +msgstr "" + +#. Tag: para +#: reference_misc.xml:85 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_misc.xml:91 +#, no-c-format +msgid "Box3D" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:93 +#, no-c-format +msgid "" +"Returns a BOX3D representing the maximum extents of the geometry." +"" +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:98 +#, no-c-format +msgid "" +"box3d Box3D geometry " +" geomA" +msgstr "" + +#. Tag: para +#: reference_misc.xml:108 +#, no-c-format +msgid "" +"Returns a BOX3D representing the maximum extents of the geometry." +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:120 +#, no-c-format +msgid "" +"SELECT Box3D(ST_GeomFromEWKT('LINESTRING(1 2 3, 3 4 5, 5 6 5)'));\n" +" Box3d\n" +" ---------\n" +" BOX3D(1 2 3,5 6 5)\n" +"\n" +" SELECT Box3D(ST_GeomFromEWKT('CIRCULARSTRING(220268 150415 1,220227 " +"150505 1,220227 150406 1)'));\n" +" Box3d\n" +" --------\n" +" BOX3D(220227 150406 1,220268 150415 1)" +msgstr "" + +#. Tag: para +#: reference_misc.xml:127 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_misc.xml:133 +#, no-c-format +msgid "ST_EstimatedExtent" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:135 +#, no-c-format +msgid "" +"Return the 'estimated' extent of the given spatial table. The " +"estimated is taken from the geometry column's statistics. The current schema " +"will be used if not specified." +msgstr "" + +#. Tag: funcsynopsis +#: reference_misc.xml:141 +#, no-c-format +msgid "" +" box2d ST_EstimatedExtent text schema_name text table_name text geocolumn_name box2d " +"ST_EstimatedExtent text table_name text geocolumn_name " +msgstr "" + +#. Tag: para +#: reference_misc.xml:160 +#, no-c-format +msgid "" +"Return the 'estimated' extent of the given spatial table. The " +"estimated is taken from the geometry column's statistics. The current schema " +"will be used if not specified." +msgstr "" + +#. Tag: para +#: reference_misc.xml:164 +#, no-c-format +msgid "" +"For PostgreSQL>=8.0.0 statistics are gathered by VACUUM ANALYZE and " +"resulting extent will be about 95% of the real one." +msgstr "" + +#. Tag: para +#: reference_misc.xml:169 +#, no-c-format +msgid "" +"In absence of statistics (empty table or no ANALYZE called) this function " +"returns NULL. Prior to version 1.5.4 an exception was thrown instead." +msgstr "" + +#. Tag: para +#: reference_misc.xml:177 +#, no-c-format +msgid "" +"For PostgreSQL<8.0.0 statistics are gathered by update_geometry_stats() " +"and resulting extent will be exact." +msgstr "" + +#. Tag: para +#: reference_misc.xml:180 +#, no-c-format +msgid "Availability: 1.0.0" +msgstr "" + +#. Tag: para +#: reference_misc.xml:181 +#, no-c-format +msgid "Changed: 2.1.0. Up to 2.0.x this was called ST_Estimated_Extent." +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:190 +#, no-c-format +msgid "" +"SELECT ST_EstimatedExtent('ny', 'edges', 'the_geom');\n" +"--result--\n" +"BOX(-8877653 4912316,-8010225.5 5589284)\n" +"\n" +"SELECT ST_EstimatedExtent('feature_poly', 'the_geom');\n" +"--result--\n" +"BOX(-124.659652709961 24.6830825805664,-67.7798080444336 49.0012092590332)" +msgstr "" + +#. Tag: refname +#: reference_misc.xml:202 +#, no-c-format +msgid "ST_Expand" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:203 +#, no-c-format +msgid "" +"Returns bounding box expanded in all directions from the bounding box of the " +"input geometry. Uses double-precision" +msgstr "" + +#. Tag: funcsynopsis +#: reference_misc.xml:207 +#, no-c-format +msgid "" +" geometry ST_Expand " +"geometry g1 " +"float units_to_expand box2d " +"ST_Expand box2d " +"g1 float " +"units_to_expand " +" box3d ST_Expand " +"box3d g1 " +"float units_to_expand " +msgstr "" + +#. Tag: para +#: reference_misc.xml:231 +#, no-c-format +msgid "" +"This function returns a bounding box expanded in all directions from the " +"bounding box of the input geometry, by an amount specified in the second " +"argument. Uses double-precision. Very useful for distance() queries, or " +"bounding box queries to add an index filter to the query." +msgstr "" + +#. Tag: para +#: reference_misc.xml:235 +#, no-c-format +msgid "" +"There are 3 variants of this. The one that takes a geometry will return a " +"POLYGON geometry representation of the bounding box and is the most commonly " +"used variant." +msgstr "" + +#. Tag: para +#: reference_misc.xml:237 +#, no-c-format +msgid "" +"ST_Expand is similar in concept to ST_Buffer except while buffer expands the " +"geometry in all directions, ST_Expand expands the bounding box an x,y,z unit " +"amount." +msgstr "" + +#. Tag: para +#: reference_misc.xml:239 +#, no-c-format +msgid "" +"Units are in the units of the spatial reference system in use denoted by the " +"SRID" +msgstr "" + +#. Tag: para +#: reference_misc.xml:242 +#, no-c-format +msgid "" +"Pre 1.3, ST_Expand was used in conjunction with distance to do indexable " +"queries. Something of the form the_geom && ST_Expand('POINT(10 " +"20)', 10) AND ST_Distance(the_geom, 'POINT(10 20)') < 10 Post 1.2, " +"this was replaced with the easier ST_DWithin construct." +msgstr "" + +#. Tag: para +#: reference_misc.xml:248 +#, no-c-format +msgid "" +"Bounding boxes of all geometries are currently 2-d even if they are 3-" +"dimensional geometries." +msgstr "" + +#. Tag: para +#: reference_misc.xml:252 +#, no-c-format +msgid "" +"Availability: 1.5.0 behavior changed to output double precision instead of " +"float4 coordinates." +msgstr "" + +#. Tag: para +#: reference_misc.xml:263 +#, no-c-format +msgid "" +"Examples below use US National Atlas Equal Area (SRID=2163) which is a meter " +"projection" +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:264 +#, no-c-format +msgid "" +"\n" +"--10 meter expanded box around bbox of a linestring\n" +"SELECT CAST(ST_Expand(ST_GeomFromText('LINESTRING(2312980 110676,2312923 " +"110701,2312892 110714)', 2163),10) As box2d);\n" +" st_expand\n" +"------------------------------------\n" +" BOX(2312882 110666,2312990 110724)\n" +"\n" +"--10 meter expanded 3d box of a 3d box\n" +"SELECT ST_Expand(CAST('BOX3D(778783 2951741 1,794875 2970042.61545891 10)' " +"As box3d),10)\n" +" st_expand\n" +"-----------------------------------------------------\n" +" BOX3D(778773 2951731 -9,794885 2970052.61545891 20)\n" +"\n" +" --10 meter geometry astext rep of a expand box around a point geometry\n" +" SELECT ST_AsEWKT(ST_Expand(ST_GeomFromEWKT('SRID=2163;POINT(2312980 " +"110676)'),10));\n" +" st_asewkt\n" +"-------------------------------------------------------------------------------------------------\n" +" SRID=2163;POLYGON((2312970 110666,2312970 110686,2312990 110686,2312990 " +"110666,2312970 110666))" +msgstr "" + +#. Tag: para +#: reference_misc.xml:269 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_misc.xml:275 +#, no-c-format +msgid "ST_Extent" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:276 +#, no-c-format +msgid "" +"an aggregate function that returns the bounding box that bounds rows of " +"geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:281 +#, no-c-format +msgid "" +"box2d ST_Extent " +"geometry set geomfield" +msgstr "" + +#. Tag: para +#: reference_misc.xml:291 +#, no-c-format +msgid "" +"ST_Extent returns a bounding box that encloses a set of geometries. The " +"ST_Extent function is an \"aggregate\" function in the terminology of SQL. " +"That means that it operates on lists of data, in the same way the SUM() and " +"AVG() functions do." +msgstr "" + +#. Tag: para +#: reference_misc.xml:294 reference_misc.xml:348 +#, no-c-format +msgid "" +"Since it returns a bounding box, the spatial Units are in the units of the " +"spatial reference system in use denoted by the SRID" +msgstr "" + +#. Tag: para +#: reference_misc.xml:295 +#, no-c-format +msgid "" +"ST_Extent is similar in concept to Oracle Spatial/Locator's SDO_AGGR_MBR" +msgstr "" + +#. Tag: para +#: reference_misc.xml:297 +#, no-c-format +msgid "" +"Since ST_Extent returns a bounding box, the SRID meta-data is lost. Use " +"ST_SetSRID to force it back into a geometry with SRID meta data. The " +"coordinates are in the units of the spatial ref of the orginal geometries." +msgstr "" + +#. Tag: para +#: reference_misc.xml:302 +#, no-c-format +msgid "" +"ST_Extent will return boxes with only an x and y component even with (x,y,z) " +"coordinate geometries. To maintain x,y,z use ST_3DExtent instead." +msgstr "" + +#. Tag: para +#: reference_misc.xml:306 +#, no-c-format +msgid "Availability: 1.4.0" +msgstr "" + +#. Tag: para +#: reference_misc.xml:317 +#, no-c-format +msgid "Examples below use Massachusetts State Plane ft (SRID=2249)" +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:318 +#, no-c-format +msgid "" +"SELECT ST_Extent(the_geom) as bextent FROM sometable;\n" +" st_bextent\n" +"------------------------------------\n" +"BOX(739651.875 2908247.25,794875.8125 2970042.75)\n" +"\n" +"\n" +"--Return extent of each category of geometries\n" +"SELECT ST_Extent(the_geom) as bextent\n" +"FROM sometable\n" +"GROUP BY category ORDER BY category;\n" +"\n" +" bextent " +"| name\n" +"----------------------------------------------------+----------------\n" +" BOX(778783.5625 2951741.25,794875.8125 2970042.75) | A\n" +" BOX(751315.8125 2919164.75,765202.6875 2935417.25) | B\n" +" BOX(739651.875 2917394.75,756688.375 2935866) | C\n" +"\n" +" --Force back into a geometry\n" +" -- and render the extended text representation of that geometry\n" +"SELECT ST_SetSRID(ST_Extent(the_geom),2249) as bextent FROM sometable;\n" +"\n" +" bextent\n" +"--------------------------------------------------------------------------------\n" +" SRID=2249;POLYGON((739651.875 2908247.25,739651.875 2970042.75,794875.8125 " +"2970042.75,\n" +" 794875.8125 2908247.25,739651.875 2908247.25))" +msgstr "" + +#. Tag: para +#: reference_misc.xml:323 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_misc.xml:329 +#, no-c-format +msgid "ST_3DExtent" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:330 +#, no-c-format +msgid "" +"an aggregate function that returns the box3D bounding box that bounds rows " +"of geometries." +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:335 +#, no-c-format +msgid "" +"box3d ST_3DExtent " +"geometry set geomfield" +msgstr "" + +#. Tag: para +#: reference_misc.xml:345 +#, no-c-format +msgid "" +"ST_3DExtent returns a box3d (includes Z coordinate) bounding box that " +"encloses a set of geometries. The ST_3DExtent function is an \"aggregate\" " +"function in the terminology of SQL. That means that it operates on lists of " +"data, in the same way the SUM() and AVG() functions do." +msgstr "" + +#. Tag: para +#: reference_misc.xml:351 +#, no-c-format +msgid "" +"Since ST_3DExtent returns a bounding box, the SRID meta-data is lost. Use " +"ST_SetSRID to force it back into a geometry with SRID meta data. The " +"coordinates are in the units of the spatial ref of the orginal geometries." +msgstr "" + +#. Tag: para +#: reference_misc.xml:356 +#, no-c-format +msgid "Changed: 2.0.0 In prior versions this used to be called ST_Extent3D" +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:365 +#, no-c-format +msgid "" +"SELECT ST_3DExtent(foo.the_geom) As b3extent\n" +"FROM (SELECT ST_MakePoint(x,y,z) As the_geom\n" +" FROM generate_series(1,3) As x\n" +" CROSS JOIN generate_series(1,2) As y\n" +" CROSS JOIN generate_series(0,2) As Z) As foo;\n" +" b3extent\n" +"--------------------\n" +" BOX3D(1 1 0,3 2 2)\n" +"\n" +"--Get the extent of various elevated circular strings\n" +"SELECT ST_3DExtent(foo.the_geom) As b3extent\n" +"FROM (SELECT ST_Translate(ST_Force_3DZ(ST_LineToCurve(ST_Buffer(ST_MakePoint" +"(x,y),1))),0,0,z) As the_geom\n" +" FROM generate_series(1,3) As x\n" +" CROSS JOIN generate_series(1,2) As y\n" +" CROSS JOIN generate_series(0,2) As Z) As foo;\n" +"\n" +" b3extent\n" +"--------------------\n" +" BOX3D(1 0 0,4 2 2)" +msgstr "" + +#. Tag: para +#: reference_misc.xml:370 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_misc.xml:377 +#, no-c-format +msgid "Find_SRID" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:379 +#, no-c-format +msgid "" +"The syntax is find_srid(<db/schema>, <table>, <column>) " +"and the function returns the integer SRID of the specified column by " +"searching through the GEOMETRY_COLUMNS table." +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:386 +#, no-c-format +msgid "" +"integer Find_SRID " +"varchar a_schema_name varchar a_table_name varchar " +"a_geomfield_name" +msgstr "" + +#. Tag: para +#: reference_misc.xml:398 +#, no-c-format +msgid "" +"The syntax is find_srid(<db/schema>, <table>, <column>) " +"and the function returns the integer SRID of the specified column by " +"searching through the GEOMETRY_COLUMNS table. If the geometry column has not " +"been properly added with the AddGeometryColumns() function, this function " +"will not work either." +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:410 +#, no-c-format +msgid "" +"SELECT Find_SRID('public', 'tiger_us_state_2007', 'the_geom_4269');\n" +"find_srid\n" +"----------\n" +"4269" +msgstr "" + +#. Tag: refname +#: reference_misc.xml:423 +#, no-c-format +msgid "ST_Mem_Size" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:425 +#, no-c-format +msgid "" +"Returns the amount of space (in bytes) the geometry takes." +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:430 +#, no-c-format +msgid "" +"integer ST_Mem_Size " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_misc.xml:440 +#, no-c-format +msgid "Returns the amount of space (in bytes) the geometry takes." +msgstr "" + +#. Tag: para +#: reference_misc.xml:441 +#, no-c-format +msgid "" +"This is a nice compliment to PostgreSQL built in functions pg_size_pretty, " +"pg_relation_size, pg_total_relation_size." +msgstr "" + +#. Tag: para +#: reference_misc.xml:442 +#, no-c-format +msgid "" +"pg_relation_size which gives the byte size of a table may return byte size " +"lower than ST_Mem_Size. This is because pg_relation_size does not add " +"toasted table contribution and large geometries are stored in TOAST tables." +msgstr "" + +#. Tag: para +#: reference_misc.xml:444 +#, no-c-format +msgid "" +"pg_total_relation_size - includes, the table, the toasted tables, and the " +"indexes." +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:457 +#, no-c-format +msgid "" +"--Return how much byte space Boston takes up in our Mass data set\n" +"SELECT pg_size_pretty(SUM(ST_Mem_Size(the_geom))) as totgeomsum,\n" +"pg_size_pretty(SUM(CASE WHEN town = 'BOSTON' THEN st_mem_size(the_geom) ELSE " +"0 END)) As bossum,\n" +"CAST(SUM(CASE WHEN town = 'BOSTON' THEN st_mem_size(the_geom) ELSE 0 END)" +"*1.00 /\n" +" SUM(st_mem_size(the_geom))*100 As numeric(10,2)) As perbos\n" +"FROM towns;\n" +"\n" +"totgeomsum bossum perbos\n" +"---------- ------ ------\n" +"1522 kB 30 kB 1.99\n" +"\n" +"\n" +"SELECT ST_Mem_Size(ST_GeomFromText('CIRCULARSTRING(220268 150415,220227 " +"150505,220227 150406)'));\n" +"\n" +"---\n" +"73\n" +"\n" +"--What percentage of our table is taken up by just the geometry\n" +"SELECT pg_total_relation_size('public.neighborhoods') As fulltable_size, sum" +"(ST_Mem_Size(the_geom)) As geomsize,\n" +"sum(ST_Mem_Size(the_geom))*1.00/pg_total_relation_size('public." +"neighborhoods')*100 As pergeom\n" +"FROM neighborhoods;\n" +"fulltable_size geomsize pergeom\n" +"------------------------------------------------\n" +"262144 96238 36.71188354492187500000" +msgstr "" + +#. Tag: refname +#: reference_misc.xml:470 +#, no-c-format +msgid "ST_Point_Inside_Circle" +msgstr "" + +#. Tag: refpurpose +#: reference_misc.xml:472 +#, no-c-format +msgid "" +"Is the point geometry insert circle defined by center_x, center_y, radius" +msgstr "" + +#. Tag: funcprototype +#: reference_misc.xml:477 +#, no-c-format +msgid "" +"boolean ST_Point_Inside_Circle " +"geometry a_point " +"float center_x " +"float center_y " +"float radius" +msgstr "" + +#. Tag: para +#: reference_misc.xml:490 +#, no-c-format +msgid "" +"The syntax for this functions is point_inside_circle(<geometry>,<" +"circle_center_x>,<circle_center_y>,<radius>). Returns the " +"true if the geometry is a point and is inside the circle. Returns false " +"otherwise." +msgstr "" + +#. Tag: para +#: reference_misc.xml:494 +#, no-c-format +msgid "This only works for points as the name suggests" +msgstr "" + +#. Tag: programlisting +#: reference_misc.xml:501 +#, no-c-format +msgid "" +"SELECT ST_Point_Inside_Circle(ST_Point(1,2), 0.5, 2, 3);\n" +" st_point_inside_circle\n" +"------------------------\n" +" t" +msgstr "" diff --git a/doc/po/it_IT/reference_operator.xml.po b/doc/po/it_IT/reference_operator.xml.po new file mode 100644 index 000000000..43f6de842 --- /dev/null +++ b/doc/po/it_IT/reference_operator.xml.po @@ -0,0 +1,1307 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_operator.xml:3 +#, no-c-format +msgid "Operators" +msgstr "" + +#. Tag: refname +#: reference_operator.xml:6 +#, no-c-format +msgid "&&" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:8 +#, no-c-format +msgid "" +"Returns TRUE if A's 2D bounding box intersects B's 2D " +"bounding box." +msgstr "" + +#. Tag: funcsynopsis +#: reference_operator.xml:12 +#, no-c-format +msgid "" +" boolean && " +" geometry A " +" geometry B boolean && geography A geography B " +msgstr "" + +#. Tag: title +#: reference_operator.xml:50 reference_operator.xml:111 +#: reference_operator.xml:176 reference_operator.xml:234 +#: reference_operator.xml:295 reference_operator.xml:353 +#: reference_operator.xml:406 reference_operator.xml:475 +#: reference_operator.xml:546 reference_operator.xml:599 +#: reference_operator.xml:654 reference_operator.xml:712 +#: reference_operator.xml:765 reference_operator.xml:818 +#: reference_operator.xml:883 reference_operator.xml:949 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_operator.xml:52 +#, no-c-format +msgid "" +"The && operator returns TRUE " +"if the 2D bounding box of geometry A intersects the 2D bounding box of " +"geometry B." +msgstr "" + +#. Tag: para +#: reference_operator.xml:54 reference_operator.xml:115 +#: reference_operator.xml:182 reference_operator.xml:243 +#: reference_operator.xml:301 reference_operator.xml:358 +#: reference_operator.xml:411 reference_operator.xml:551 +#: reference_operator.xml:605 reference_operator.xml:660 +#: reference_operator.xml:717 reference_operator.xml:770 +#: reference_operator.xml:823 +#, no-c-format +msgid "" +"This operand will make use of any indexes that may be available on the " +"geometries." +msgstr "" + +#. Tag: para +#: reference_operator.xml:57 +#, no-c-format +msgid "Enhanced: 2.0.0 support for Polyhedral surfaces was introduced." +msgstr "" + +#. Tag: para +#: reference_operator.xml:58 +#, no-c-format +msgid "Availability: 1.5.0 support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_operator.xml:59 reference_operator.xml:119 +#: reference_operator.xml:240 reference_operator.xml:492 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: para +#: reference_operator.xml:60 reference_operator.xml:120 +#: reference_operator.xml:241 reference_operator.xml:493 +#: reference_operator.xml:827 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: title +#: reference_operator.xml:64 reference_operator.xml:187 +#: reference_operator.xml:248 reference_operator.xml:306 +#: reference_operator.xml:363 reference_operator.xml:416 +#: reference_operator.xml:502 reference_operator.xml:556 +#: reference_operator.xml:611 reference_operator.xml:665 +#: reference_operator.xml:722 reference_operator.xml:775 +#: reference_operator.xml:843 reference_operator.xml:899 +#: reference_operator.xml:963 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:66 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 && tbl2.column2 AS " +"overlaps\n" +"FROM ( VALUES\n" +" (1, 'LINESTRING(0 0, 3 3)'::geometry),\n" +" (2, 'LINESTRING(0 1, 0 5)'::geometry)) AS tbl1,\n" +"( VALUES\n" +" (3, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overlaps\n" +"---------+---------+----------\n" +" 1 | 3 | t\n" +" 2 | 3 | f\n" +"(2 rows)" +msgstr "" + +#. Tag: title +#: reference_operator.xml:71 reference_operator.xml:139 +#: reference_operator.xml:193 reference_operator.xml:254 +#: reference_operator.xml:312 reference_operator.xml:369 +#: reference_operator.xml:422 reference_operator.xml:508 +#: reference_operator.xml:562 reference_operator.xml:617 +#: reference_operator.xml:671 reference_operator.xml:728 +#: reference_operator.xml:781 reference_operator.xml:848 +#: reference_operator.xml:915 reference_operator.xml:967 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_operator.xml:73 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:85 +#, no-c-format +msgid "&&&" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:87 +#, no-c-format +msgid "" +"Returns TRUE if A's 3D bounding box intersects B's 3D " +"bounding box." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:92 +#, no-c-format +msgid "" +"boolean &&& " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:113 +#, no-c-format +msgid "" +"The &&& operator returns TRUE if the n-D bounding box of geometry A intersects the n-D bounding " +"box of geometry B." +msgstr "" + +#. Tag: para +#: reference_operator.xml:118 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: para +#: reference_operator.xml:121 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: para +#: reference_operator.xml:122 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: title +#: reference_operator.xml:126 +#, no-c-format +msgid "Examples: 3D LineStrings" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:128 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &&& tbl2.column2 " +"AS overlaps_3d, \n" +" tbl1.column2 && tbl2.column2 AS " +"overlaps_2d\n" +"FROM ( VALUES\n" +" (1, 'LINESTRING Z(0 0 1, 3 3 2)'::geometry),\n" +" (2, 'LINESTRING Z(1 2 0, 0 5 -1)'::geometry)) AS tbl1,\n" +"( VALUES\n" +" (3, 'LINESTRING Z(1 2 1, 4 6 1)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overlaps_3d | overlaps_2d\n" +"---------+---------+-------------+-------------\n" +" 1 | 3 | t | t\n" +" 2 | 3 | f | t" +msgstr "" + +#. Tag: title +#: reference_operator.xml:132 +#, no-c-format +msgid "Examples: 3M LineStrings" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:134 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &&& tbl2.column2 " +"AS overlaps_3zm, \n" +" tbl1.column2 && tbl2.column2 AS " +"overlaps_2d\n" +"FROM ( VALUES\n" +" (1, 'LINESTRING M(0 0 1, 3 3 2)'::geometry),\n" +" (2, 'LINESTRING M(1 2 0, 0 5 -1)'::geometry)) AS tbl1,\n" +"( VALUES\n" +" (3, 'LINESTRING M(1 2 1, 4 6 1)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overlaps_3zm | overlaps_2d\n" +"---------+---------+-------------+-------------\n" +" 1 | 3 | t | t\n" +" 2 | 3 | f | t" +msgstr "" + +#. Tag: refname +#: reference_operator.xml:147 +#, no-c-format +msgid "&<" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:149 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box overlaps or is to the " +"left of B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:154 +#, no-c-format +msgid "" +"boolean &< " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:178 +#, no-c-format +msgid "" +"The &< operator returns TRUE if " +"the bounding box of geometry A overlaps or is to the left of the bounding " +"box of geometry B, or more accurately, overlaps or is NOT to the right of " +"the bounding box of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:189 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &< tbl2.column2 AS " +"overleft\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n" +" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n" +" (4, 'LINESTRING(6 0, 6 1)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overleft\n" +"---------+---------+----------\n" +" 1 | 2 | f\n" +" 1 | 3 | f\n" +" 1 | 4 | t\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:195 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:205 +#, no-c-format +msgid "&<|" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:207 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box overlaps or is below B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:212 +#, no-c-format +msgid "" +"boolean &<| " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:236 +#, no-c-format +msgid "" +"The &<| operator returns TRUE " +"if the bounding box of geometry A overlaps or is below of the bounding box " +"of geometry B, or more accurately, overlaps or is NOT above the bounding box " +"of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:250 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &<| tbl2.column2 AS " +"overbelow\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING(6 0, 6 4)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n" +" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n" +" (4, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overbelow\n" +"---------+---------+-----------\n" +" 1 | 2 | f\n" +" 1 | 3 | t\n" +" 1 | 4 | t\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:256 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:266 +#, no-c-format +msgid "&>" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:268 +#, no-c-format +msgid "" +"Returns TRUE if A' bounding box overlaps or is to the " +"right of B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:273 +#, no-c-format +msgid "" +"boolean &> " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:297 +#, no-c-format +msgid "" +"The &> operator returns TRUE if " +"the bounding box of geometry A overlaps or is to the right of the bounding " +"box of geometry B, or more accurately, overlaps or is NOT to the left of the " +"bounding box of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:308 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 &> tbl2.column2 AS " +"overright\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n" +" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n" +" (4, 'LINESTRING(6 0, 6 1)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overright\n" +"---------+---------+-----------\n" +" 1 | 2 | t\n" +" 1 | 3 | t\n" +" 1 | 4 | f\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:314 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:324 +#, no-c-format +msgid "<<" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:326 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is strictly to the left " +"of B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:331 +#, no-c-format +msgid "" +"boolean << " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:355 +#, no-c-format +msgid "" +"The << operator returns TRUE if " +"the bounding box of geometry A is strictly to the left of the bounding box " +"of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:365 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 << tbl2.column2 AS " +"left\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (1 2, 1 5)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (0 0, 4 3)'::geometry),\n" +" (3, 'LINESTRING (6 0, 6 5)'::geometry),\n" +" (4, 'LINESTRING (2 2, 5 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | left\n" +"---------+---------+------\n" +" 1 | 2 | f\n" +" 1 | 3 | t\n" +" 1 | 4 | t\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:371 reference_operator.xml:564 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:377 +#, no-c-format +msgid "<<|" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:379 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is strictly below B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:384 +#, no-c-format +msgid "" +"boolean <<| " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:408 +#, no-c-format +msgid "" +"The <<| operator returns TRUE if " +"the bounding box of geometry A is strictly below the bounding box of " +"geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:418 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 <<| tbl2.column2 AS " +"below\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (0 0, 4 3)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (1 4, 1 7)'::geometry),\n" +" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n" +" (4, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | below\n" +"---------+---------+-------\n" +" 1 | 2 | t\n" +" 1 | 3 | f\n" +" 1 | 4 | f\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:424 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:430 +#, no-c-format +msgid "=" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:432 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is the same as B's. Uses " +"double precision bounding box." +msgstr "" + +#. Tag: funcsynopsis +#: reference_operator.xml:436 +#, no-c-format +msgid "" +" boolean = " +" geometry A " +" geometry B boolean = geography A geography B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:477 +#, no-c-format +msgid "" +"The = operator returns TRUE if the " +"bounding box of geometry/geography A is the same as the bounding box of " +"geometry/geography B. PostgreSQL uses the =, <, and > operators " +"defined for geometries to perform internal orderings and comparison of " +"geometries (ie. in a GROUP BY or ORDER BY clause)." +msgstr "" + +#. Tag: para +#: reference_operator.xml:482 +#, no-c-format +msgid "" +"This is cause for a lot of confusion. When you compare geometryA = geometryB " +"it will return true even when the geometries are clearly different IF their " +"bounding boxes are the same. To check for true equality use or " +msgstr "" + +#. Tag: para +#: reference_operator.xml:489 +#, no-c-format +msgid "" +"This operand will NOT make use of any indexes that may be available on the " +"geometries." +msgstr "" + +#. Tag: para +#: reference_operator.xml:494 +#, no-c-format +msgid "" +"Changed: 2.0.0 , the bounding box of geometries was changed to use double " +"precision instead of float4 precision of prior. The side effect of this is " +"that in particular points in prior versions that were a little different may " +"have returned true in prior versions and false in 2.0+ since their float4 " +"boxes would be the same but there float8 (double precision), would be " +"different." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:504 +#, no-c-format +msgid "" +"SELECT 'LINESTRING(0 0, 0 1, 1 0)'::geometry = 'LINESTRING(1 1, 0 0)'::" +"geometry;\n" +" ?column?\n" +"----------\n" +" t\n" +"(1 row)\n" +"\n" +"SELECT ST_AsText(column1)\n" +"FROM ( VALUES\n" +" ('LINESTRING(0 0, 1 1)'::geometry),\n" +" ('LINESTRING(1 1, 0 0)'::geometry)) AS foo;\n" +" st_astext\n" +"---------------------\n" +" LINESTRING(0 0,1 1)\n" +" LINESTRING(1 1,0 0)\n" +"(2 rows)\n" +"\n" +"-- Note: the GROUP BY uses the \"=\" to compare for geometry equivalency.\n" +"SELECT ST_AsText(column1)\n" +"FROM ( VALUES\n" +" ('LINESTRING(0 0, 1 1)'::geometry),\n" +" ('LINESTRING(1 1, 0 0)'::geometry)) AS foo\n" +"GROUP BY column1;\n" +" st_astext\n" +"---------------------\n" +" LINESTRING(0 0,1 1)\n" +"(1 row)\n" +"\n" +"-- In versions prior to 2.0, this used to return true --\n" +" SELECT ST_GeomFromText('POINT(1707296.37 4820536.77)') =\n" +" ST_GeomFromText('POINT(1707296.27 4820536.87)') As pt_intersect;\n" +" \n" +"--pt_intersect --\n" +"f" +msgstr "" + +#. Tag: para +#: reference_operator.xml:510 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:517 +#, no-c-format +msgid ">>" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:519 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is strictly to the right " +"of B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:524 +#, no-c-format +msgid "" +"boolean >> " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:548 +#, no-c-format +msgid "" +"The >> operator returns TRUE if " +"the bounding box of geometry A is strictly to the right of the bounding box " +"of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:558 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 >> tbl2.column2 AS " +"right\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (1 4, 1 7)'::geometry),\n" +" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n" +" (4, 'LINESTRING (0 0, 4 3)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | right\n" +"---------+---------+-------\n" +" 1 | 2 | t\n" +" 1 | 3 | f\n" +" 1 | 4 | f\n" +"(3 rows)" +msgstr "" + +#. Tag: refname +#: reference_operator.xml:570 +#, no-c-format +msgid "@" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:572 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is contained by B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:577 +#, no-c-format +msgid "" +"boolean @ geometry " +" A geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:601 +#, no-c-format +msgid "" +"The @ operator returns TRUE if the " +"bounding box of geometry A is completely contained by the bounding box of " +"geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:613 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 @ tbl2.column2 AS contained\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (1 1, 3 3)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (0 0, 4 4)'::geometry),\n" +" (3, 'LINESTRING (2 2, 4 4)'::geometry),\n" +" (4, 'LINESTRING (1 1, 3 3)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | contained\n" +"---------+---------+-----------\n" +" 1 | 2 | t\n" +" 1 | 3 | f\n" +" 1 | 4 | t\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:619 reference_operator.xml:783 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:625 +#, no-c-format +msgid "|&>" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:627 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box overlaps or is above B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:632 +#, no-c-format +msgid "" +"boolean |&> " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:656 +#, no-c-format +msgid "" +"The |&> operator returns TRUE " +"if the bounding box of geometry A overlaps or is above the bounding box of " +"geometry B, or more accurately, overlaps or is NOT below the bounding box of " +"geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:667 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 |&> tbl2.column2 AS " +"overabove\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING(6 0, 6 4)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING(0 0, 3 3)'::geometry),\n" +" (3, 'LINESTRING(0 1, 0 5)'::geometry),\n" +" (4, 'LINESTRING(1 2, 4 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | overabove\n" +"---------+---------+-----------\n" +" 1 | 2 | t\n" +" 1 | 3 | f\n" +" 1 | 4 | f\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:673 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:683 +#, no-c-format +msgid "|>>" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:685 +#, no-c-format +msgid "" +"Returns TRUE if A's bounding box is strictly above B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:690 +#, no-c-format +msgid "" +"boolean |>> " +"geometry A " +"geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:714 +#, no-c-format +msgid "" +"The |>> operator returns TRUE if " +"the bounding box of geometry A is strictly to the right of the bounding box " +"of geometry B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:724 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 |>> tbl2.column2 AS " +"above\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (1 4, 1 7)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (0 0, 4 2)'::geometry),\n" +" (3, 'LINESTRING (6 1, 6 5)'::geometry),\n" +" (4, 'LINESTRING (2 3, 5 6)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | above\n" +"---------+---------+-------\n" +" 1 | 2 | t\n" +" 1 | 3 | f\n" +" 1 | 4 | f\n" +"(3 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:730 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:736 +#, no-c-format +msgid "~" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:738 +#, no-c-format +msgid "Returns TRUE if A's bounding box contains B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:743 +#, no-c-format +msgid "" +"boolean ~ geometry " +" A geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:767 +#, no-c-format +msgid "" +"The ~ operator returns TRUE if the " +"bounding box of geometry A completely contains the bounding box of geometry " +"B." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:777 +#, no-c-format +msgid "" +"SELECT tbl1.column1, tbl2.column1, tbl1.column2 ~ tbl2.column2 AS contains\n" +"FROM\n" +" ( VALUES\n" +" (1, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl1,\n" +" ( VALUES\n" +" (2, 'LINESTRING (0 0, 4 4)'::geometry),\n" +" (3, 'LINESTRING (1 1, 2 2)'::geometry),\n" +" (4, 'LINESTRING (0 0, 3 3)'::geometry)) AS tbl2;\n" +"\n" +" column1 | column1 | contains\n" +"---------+---------+----------\n" +" 1 | 2 | f\n" +" 1 | 3 | t\n" +" 1 | 4 | t\n" +"(3 rows)" +msgstr "" + +#. Tag: refname +#: reference_operator.xml:789 +#, no-c-format +msgid "~=" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:791 +#, no-c-format +msgid "Returns TRUE if A's bounding box is the same as B's." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:796 +#, no-c-format +msgid "" +"boolean ~= geometry " +" A geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:820 +#, no-c-format +msgid "" +"The ~= operator returns TRUE if the " +"bounding box of geometry/geography A is the same as the bounding box of " +"geometry/geography B." +msgstr "" + +#. Tag: para +#: reference_operator.xml:826 +#, no-c-format +msgid "Availability: 1.5.0 changed behavior" +msgstr "" + +#. Tag: para +#: reference_operator.xml:830 +#, no-c-format +msgid "" +"This operator has changed behavior in PostGIS 1.5 from testing for actual " +"geometric equality to only checking for bounding box equality. To complicate " +"things it also depends on if you have done a hard or soft upgrade which " +"behavior your database has. To find out which behavior your database has you " +"can run the query below. To check for true equality use or and to check for " +"bounding box equality ; operator is a " +"safer option." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:844 +#, no-c-format +msgid "" +"select 'LINESTRING(0 0, 1 1)'::geometry ~= 'LINESTRING(0 1, 1 0)'::geometry " +"as equality;\n" +" equality |\n" +"-----------------+\n" +" t |" +msgstr "" + +#. Tag: para +#: reference_operator.xml:845 +#, no-c-format +msgid "" +"The above can be used to test if you have the new or old behavior of ~= " +"operator." +msgstr "" + +#. Tag: para +#: reference_operator.xml:849 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:855 +#, no-c-format +msgid "<->" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:857 +#, no-c-format +msgid "" +"Returns the distance between two points. For point / point checks it uses " +"floating point accuracy (as opposed to the double precision accuracy of the " +"underlying point geometry). For other geometry types the distance between " +"the floating point bounding box centroids is returned. Useful for doing " +"distance ordering and nearest neighbor limits using KNN gist functionality." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:864 +#, no-c-format +msgid "" +"double precision <-> " +" geometry A " +" geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:885 +#, no-c-format +msgid "" +"The <-> operator returns distance between two " +"points read from the spatial index for points (float precision). For other " +"geometries it returns the distance from centroid of bounding box of " +"geometries. Useful for doing nearest neighbor approximate distance ordering." +msgstr "" + +#. Tag: para +#: reference_operator.xml:888 reference_operator.xml:953 +#, no-c-format +msgid "" +"This operand will make use of any indexes that may be available on the " +"geometries. It is different from other operators that use spatial indexes in " +"that the spatial index is only used when the operator is in the ORDER BY " +"clause." +msgstr "" + +#. Tag: para +#: reference_operator.xml:891 +#, no-c-format +msgid "" +"Index only kicks in if one of the geometries is a constant (not in a " +"subquery/cte). e.g. 'SRID=3005;POINT(1011102 450541)'::geometry instead of a." +"geom" +msgstr "" + +#. Tag: para +#: reference_operator.xml:893 reference_operator.xml:958 +#, no-c-format +msgid "Availability: 2.0.0 only available for PostgreSQL 9.1+" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:900 +#, no-c-format +msgid "" +"\n" +"\n" +" d | edabbr | vaabbr\n" +"------------------+--------+--------\n" +" 0 | ALQ | 128\n" +" 5541.57712511724 | ALQ | 129A\n" +" 5579.67450712005 | ALQ | 001\n" +" 6083.4207708641 | ALQ | 131\n" +" 7691.2205404848 | ALQ | 003\n" +" 7900.75451037313 | ALQ | 122\n" +" 8694.20710669982 | ALQ | 129B\n" +" 9564.24289057111 | ALQ | 130\n" +" 12089.665931705 | ALQ | 127\n" +" 18472.5531479404 | ALQ | 002\n" +"(10 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:901 +#, no-c-format +msgid "Then the KNN raw answer:" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:904 +#, no-c-format +msgid "" +" 'SRID=3005;POINT(1011102 450541)'::geometry limit 10;]]>\n" +"\n" +" d | edabbr | vaabbr\n" +"------------------+--------+--------\n" +" 0 | ALQ | 128\n" +" 5579.67450712005 | ALQ | 001\n" +" 5541.57712511724 | ALQ | 129A\n" +" 8694.20710669982 | ALQ | 129B\n" +" 9564.24289057111 | ALQ | 130\n" +" 6083.4207708641 | ALQ | 131\n" +" 12089.665931705 | ALQ | 127\n" +" 24795.264503022 | ALQ | 124\n" +" 24587.6584922302 | ALQ | 123\n" +" 26764.2555463114 | ALQ | 125\n" +"(10 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:905 +#, no-c-format +msgid "" +"Note the misordering in the actual distances and the different entries that " +"actually show up in the top 10." +msgstr "" + +#. Tag: para +#: reference_operator.xml:909 +#, no-c-format +msgid "Finally the hybrid:" +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:912 +#, no-c-format +msgid "" +" 'SRID=3005;POINT(1011102 450541)'::geometry LIMIT 100) \n" +" SELECT * \n" +" FROM index_query \n" +" ORDER BY d limit 10;]]>\n" +"\n" +" d | edabbr | vaabbr\n" +"------------------+--------+--------\n" +" 0 | ALQ | 128\n" +" 5541.57712511724 | ALQ | 129A\n" +" 5579.67450712005 | ALQ | 001\n" +" 6083.4207708641 | ALQ | 131\n" +" 7691.2205404848 | ALQ | 003\n" +" 7900.75451037313 | ALQ | 122\n" +" 8694.20710669982 | ALQ | 129B\n" +" 9564.24289057111 | ALQ | 130\n" +" 12089.665931705 | ALQ | 127\n" +" 18472.5531479404 | ALQ | 002\n" +"(10 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:916 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_operator.xml:922 +#, no-c-format +msgid "<#>" +msgstr "" + +#. Tag: refpurpose +#: reference_operator.xml:924 +#, no-c-format +msgid "" +"Returns the distance between bounding box of 2 geometries. For point / point " +"checks it's almost the same as distance (though may be different since the " +"bounding box is at floating point accuracy and geometries are double " +"precision). Useful for doing distance ordering and nearest neighbor limits " +"using KNN gist functionality." +msgstr "" + +#. Tag: funcprototype +#: reference_operator.xml:930 +#, no-c-format +msgid "" +"double precision <#> " +" geometry A " +" geometry B " +msgstr "" + +#. Tag: para +#: reference_operator.xml:951 +#, no-c-format +msgid "" +"The <#> KNN GIST operator returns distance between " +"two floating point bounding boxes read from the spatial index if available. " +"Useful for doing nearest neighbor approximate distance ordering." +msgstr "" + +#. Tag: para +#: reference_operator.xml:956 +#, no-c-format +msgid "" +"Index only kicks in if one of the geometries is a constant e.g. ORDER BY " +"(ST_GeomFromText('POINT(1 2)') <#> geom) instead of g1.geom <#>." +msgstr "" + +#. Tag: programlisting +#: reference_operator.xml:964 +#, no-c-format +msgid "" +" ST_GeomFromText('LINESTRING(746149 2948672,745954 " +"2948576,\n" +" 745787 2948499,745740 2948468,745712 2948438,\n" +" 745690 2948384,745677 2948319)',2249) As b_dist, \n" +" ST_Distance(b.geom, ST_GeomFromText('LINESTRING(746149 " +"2948672,745954 2948576,\n" +" 745787 2948499,745740 2948468,745712 2948438,\n" +" 745690 2948384,745677 2948319)',2249)) As act_dist\n" +" FROM bos_roads As b \n" +" ORDER BY b_dist, b.tlid\n" +" LIMIT 100) As foo\n" +" ORDER BY act_dist, tlid LIMIT 10;]]>\n" +"\n" +" tlid | mtfcc | b_dist | act_dist\n" +"-----------+-------+------------------+------------------\n" +" 85732027 | S1400 | 0 | 0\n" +" 85732029 | S1400 | 0 | 0\n" +" 85732031 | S1400 | 0 | 0\n" +" 85734335 | S1400 | 0 | 0\n" +" 85736037 | S1400 | 0 | 0\n" +" 624683742 | S1400 | 0 | 128.528874268666\n" +" 85719343 | S1400 | 260.839270432962 | 260.839270432962\n" +" 85741826 | S1400 | 164.759294123275 | 260.839270432962\n" +" 85732032 | S1400 | 277.75 | 311.830282365264\n" +" 85735592 | S1400 | 222.25 | 311.830282365264\n" +"(10 rows)" +msgstr "" + +#. Tag: para +#: reference_operator.xml:968 +#, no-c-format +msgid "" +", , " +msgstr "" diff --git a/doc/po/it_IT/reference_output.xml.po b/doc/po/it_IT/reference_output.xml.po new file mode 100644 index 000000000..6ac7c5655 --- /dev/null +++ b/doc/po/it_IT/reference_output.xml.po @@ -0,0 +1,1846 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_output.xml:4 +#, no-c-format +msgid "Geometry Outputs" +msgstr "" + +#. Tag: refname +#: reference_output.xml:7 +#, no-c-format +msgid "ST_AsBinary" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:8 +#, no-c-format +msgid "" +"Return the Well-Known Binary (WKB) representation of the geometry/geography " +"without SRID meta data." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:12 +#, no-c-format +msgid "" +" bytea ST_AsBinary " +"geometry g1 bytea ST_AsBinary geometry g1 text NDR_or_XDR bytea " +"ST_AsBinary geography " +"g1 " +"bytea ST_AsBinary " +"geography g1 " +"text NDR_or_XDR " +msgstr "" + +#. Tag: title +#: reference_output.xml:35 reference_output.xml:108 reference_output.xml:161 +#: reference_output.xml:233 reference_output.xml:335 reference_output.xml:436 +#: reference_output.xml:492 reference_output.xml:557 reference_output.xml:600 +#: reference_output.xml:702 reference_output.xml:751 reference_output.xml:809 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_output.xml:37 +#, no-c-format +msgid "" +"Returns the Well-Known Binary representation of the geometry. There are 2 " +"variants of the function. The first variant takes no endian encoding " +"parameter and defaults to server machine endian. The second variant takes a " +"second argument denoting the encoding - using little-endian ('NDR') or big-" +"endian ('XDR') encoding." +msgstr "" + +#. Tag: para +#: reference_output.xml:40 reference_output.xml:112 +#, no-c-format +msgid "" +"This is useful in binary cursors to pull data out of the database without " +"converting it to a string representation." +msgstr "" + +#. Tag: para +#: reference_output.xml:44 +#, no-c-format +msgid "" +"The WKB spec does not include the SRID. To get the WKB with SRID format use " +"ST_AsEWKB" +msgstr "" + +#. Tag: para +#: reference_output.xml:47 +#, no-c-format +msgid "" +"ST_AsBinary is the reverse of for " +"geometry. Use to convert to a postgis " +"geometry from ST_AsBinary representation." +msgstr "" + +#. Tag: para +#: reference_output.xml:51 +#, no-c-format +msgid "" +"The default behavior in PostgreSQL 9.0 has been changed to output bytea in " +"hex encoding. ST_AsBinary is the reverse of for geometry. If your GUI tools require the old behavior, then SET " +"bytea_output='escape' in your database." +msgstr "" + +#. Tag: para +#: reference_output.xml:55 reference_output.xml:120 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was " +"introduced." +msgstr "" + +#. Tag: para +#: reference_output.xml:56 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for higher coordinate dimensions was introduced." +msgstr "" + +#. Tag: para +#: reference_output.xml:57 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for specifying endian with geography was introduced." +msgstr "" + +#. Tag: para +#: reference_output.xml:58 reference_output.xml:274 reference_output.xml:379 +#, no-c-format +msgid "Availability: 1.5.0 geography support was introduced." +msgstr "" + +#. Tag: para +#: reference_output.xml:59 +#, no-c-format +msgid "" +"Changed: 2.0.0 Inputs to this function can not be unknown -- must be " +"geometry. Constructs such as ST_AsBinary('POINT(1 2)') are no " +"longer valid and you will get an n st_asbinary(unknown) is not unique " +"error. Code like that needs to be changed to ST_AsBinary('POINT" +"(1 2)'::geometry);. If that is not possible, then install " +"legacy.sql." +msgstr "" + +#. Tag: para +#: reference_output.xml:61 reference_output.xml:767 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.1" +msgstr "" + +#. Tag: para +#: reference_output.xml:62 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.37" +msgstr "" + +#. Tag: para +#: reference_output.xml:63 reference_output.xml:122 reference_output.xml:176 +#: reference_output.xml:445 reference_output.xml:716 reference_output.xml:769 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: para +#: reference_output.xml:64 reference_output.xml:123 reference_output.xml:177 +#: reference_output.xml:386 reference_output.xml:659 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_output.xml:65 reference_output.xml:124 reference_output.xml:178 +#: reference_output.xml:387 reference_output.xml:662 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: para +#: reference_output.xml:66 reference_output.xml:121 reference_output.xml:175 +#: reference_output.xml:276 reference_output.xml:385 reference_output.xml:444 +#: reference_output.xml:519 reference_output.xml:657 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: title +#: reference_output.xml:71 reference_output.xml:129 reference_output.xml:183 +#: reference_output.xml:280 reference_output.xml:449 reference_output.xml:523 +#: reference_output.xml:576 reference_output.xml:720 reference_output.xml:774 +#: reference_output.xml:838 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:73 +#, no-c-format +msgid "" +"SELECT ST_AsBinary(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326));\n" +"\n" +" st_asbinary\n" +"--------------------------------\n" +"\\001\\003\\000\\000\\000\\001\\000\\000\\000\\005\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\360?\\000\\000\\000\\000\\000\\000\n" +"\\360?\\000\\000\\000\\000\\000\\000\\360?\\000\\000\n" +"\\000\\000\\000\\000\\360?\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\n" +"(1 row)" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:74 +#, no-c-format +msgid "" +"SELECT ST_AsBinary(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326), " +"'XDR');\n" +" st_asbinary\n" +"--------------------------------\n" +"\\000\\000\\000\\000\\003\\000\\000\\000\\001\\000\\000\\000\\005\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000?\\360\\000\\000\\000\\000\\000\\000?" +"\\360\\000\\000\\000\\000\\000\\000?\\360\\000\\000\n" +"\\000\\000\\000\\000?" +"\\360\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"(1 row)" +msgstr "" + +#. Tag: title +#: reference_output.xml:79 reference_output.xml:137 reference_output.xml:190 +#: reference_output.xml:405 reference_output.xml:527 reference_output.xml:724 +#: reference_output.xml:781 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_output.xml:80 +#, no-c-format +msgid ", ," +msgstr "" + +#. Tag: refname +#: reference_output.xml:89 +#, no-c-format +msgid "ST_AsEWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:90 +#, no-c-format +msgid "" +"Return the Well-Known Binary (WKB) representation of the geometry with SRID " +"meta data." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:94 +#, no-c-format +msgid "" +" bytea ST_AsEWKB " +"geometry g1 bytea ST_AsEWKB geometry g1 text NDR_or_XDR " +msgstr "" + +#. Tag: para +#: reference_output.xml:109 +#, no-c-format +msgid "" +"Returns the Well-Known Binary representation of the geometry with SRID " +"metadata. There are 2 variants of the function. The first variant takes no " +"endian encoding parameter and defaults to little endian. The second variant " +"takes a second argument denoting the encoding - using little-endian ('NDR') " +"or big-endian ('XDR') encoding." +msgstr "" + +#. Tag: para +#: reference_output.xml:115 +#, no-c-format +msgid "" +"The WKB spec does not include the SRID. To get the OGC WKB format use " +"ST_AsBinary" +msgstr "" + +#. Tag: para +#: reference_output.xml:118 +#, no-c-format +msgid "" +"ST_AsEWKB is the reverse of ST_GeomFromEWKB. Use ST_GeomFromEWKB to convert " +"to a postgis geometry from ST_AsEWKB representation." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:131 +#, no-c-format +msgid "" +"SELECT ST_AsEWKB(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326));\n" +"\n" +" st_asewkb\n" +"--------------------------------\n" +"\\001\\003\\000\\000 \\346\\020\\000\\000\\001\\000\n" +"\\000\\000\\005\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\360?\\000\\000\\000\\000\\000\\000\\360?\n" +"\\000\\000\\000\\000\\000\\000\\360?\\000\\000\\000\\000\\000\n" +"\\000\\360?\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"(1 row)" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:132 +#, no-c-format +msgid "" +"SELECT ST_AsEWKB(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326), " +"'XDR');\n" +" st_asewkb\n" +"--------------------------------\n" +"\\000 " +"\\000\\000\\003\\000\\000\\020\\346\\000\\000\\000\\001\\000\\000\\000\\005\\000\\000\\000\\000\\\n" +"000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000?\n" +"\\360\\000\\000\\000\\000\\000\\000?\\360\\000\\000\\000\\000\\000\\000?" +"\\360\\000\\000\\000\\000\n" +"\\000\\000?" +"\\360\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\n" +"\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000\\000" +msgstr "" + +#. Tag: para +#: reference_output.xml:138 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_output.xml:143 +#, no-c-format +msgid "ST_AsEWKT" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:144 +#, no-c-format +msgid "" +"Return the Well-Known Text (WKT) representation of the geometry with SRID " +"meta data." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:148 +#, no-c-format +msgid "" +" text ST_AsEWKT " +"geometry g1 text ST_AsEWKT geography g1 " +msgstr "" + +#. Tag: para +#: reference_output.xml:163 +#, no-c-format +msgid "" +"Returns the Well-Known Text representation of the geometry prefixed with the " +"SRID." +msgstr "" + +#. Tag: para +#: reference_output.xml:166 +#, no-c-format +msgid "" +"The WKT spec does not include the SRID. To get the OGC WKT format use " +"ST_AsText" +msgstr "" + +#. Tag: para +#: reference_output.xml:168 reference_output.xml:759 +#, no-c-format +msgid "" +"WKT format does not maintain precision so to prevent floating truncation, " +"use ST_AsBinary or ST_AsEWKB format for transport." +msgstr "" + +#. Tag: para +#: reference_output.xml:172 +#, no-c-format +msgid "" +"ST_AsEWKT is the reverse of . Use to convert to a postgis geometry from " +"ST_AsEWKT representation." +msgstr "" + +#. Tag: para +#: reference_output.xml:174 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Geography, Polyhedral surfaces, Triangles and " +"TIN was introduced." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:185 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT('0103000020E61000000100000005000000000000\n" +" 000000000000000000000000000000000000000000000000000000\n" +" F03F000000000000F03F000000000000F03F000000000000F03\n" +" F000000000000000000000000000000000000000000000000'::" +"geometry);\n" +"\n" +" st_asewkt\n" +"--------------------------------\n" +"SRID=4326;POLYGON((0 0,0 1,1 1,1 0,0 0))\n" +"(1 row)\n" +"\n" +"SELECT ST_AsEWKT" +"('0108000080030000000000000060E30A4100000000785C0241000000000000F03F0000000018\n" +"E20A4100000000485F024100000000000000400000000018\n" +"E20A4100000000305C02410000000000000840')\n" +"\n" +"--st_asewkt---\n" +"CIRCULARSTRING(220268 150415 1,220227 150505 2,220227 150406 3)" +msgstr "" + +#. Tag: para +#: reference_output.xml:191 +#, no-c-format +msgid "," +msgstr "" + +#. Tag: refname +#: reference_output.xml:196 +#, no-c-format +msgid "ST_AsGeoJSON" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:198 +#, no-c-format +msgid "Return the geometry as a GeoJSON element." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:202 +#, no-c-format +msgid "" +" text ST_AsGeoJSON " +"geometry geom " +"integer " +"maxdecimaldigits=15 integer options=0 text ST_AsGeoJSON geography geog integer " +"maxdecimaldigits=15 integer options=0 text ST_AsGeoJSON integer gj_version geometry geom integer " +"maxdecimaldigits=15 integer options=0 text ST_AsGeoJSON integer gj_version geography geog integer " +"maxdecimaldigits=15 integer options=0 " +msgstr "" + +#. Tag: para +#: reference_output.xml:235 +#, no-c-format +msgid "" +"Return the geometry as a Geometry Javascript Object Notation (GeoJSON) " +"element. (Cf GeoJSON " +"specifications 1.0). 2D and 3D Geometries are both supported. " +"GeoJSON only support SFS 1.1 geometry type (no curve support for example)." +msgstr "" + +#. Tag: para +#: reference_output.xml:241 +#, no-c-format +msgid "" +"The gj_version parameter is the major version of the GeoJSON spec. If " +"specified, must be 1. This represents the spec version of GeoJSON." +msgstr "" + +#. Tag: para +#: reference_output.xml:243 +#, no-c-format +msgid "" +"The third argument may be used to reduce the maximum number of decimal " +"places used in output (defaults to 15)." +msgstr "" + +#. Tag: para +#: reference_output.xml:246 +#, no-c-format +msgid "" +"The last 'options' argument could be used to add Bbox or Crs in GeoJSON " +"output:" +msgstr "" + +#. Tag: para +#: reference_output.xml:250 +#, no-c-format +msgid "0: means no option (default value)" +msgstr "" + +#. Tag: para +#: reference_output.xml:254 +#, no-c-format +msgid "1: GeoJSON Bbox" +msgstr "" + +#. Tag: para +#: reference_output.xml:258 +#, no-c-format +msgid "2: GeoJSON Short CRS (e.g EPSG:4326)" +msgstr "" + +#. Tag: para +#: reference_output.xml:262 +#, no-c-format +msgid "4: GeoJSON Long CRS (e.g urn:ogc:def:crs:EPSG::4326)" +msgstr "" + +#. Tag: para +#: reference_output.xml:266 +#, no-c-format +msgid "Version 1: ST_AsGeoJSON(geom) / precision=15 version=1 options=0" +msgstr "" + +#. Tag: para +#: reference_output.xml:267 +#, no-c-format +msgid "Version 2: ST_AsGeoJSON(geom, precision) / version=1 options=0" +msgstr "" + +#. Tag: para +#: reference_output.xml:268 +#, no-c-format +msgid "Version 3: ST_AsGeoJSON(geom, precision, options) / version=1" +msgstr "" + +#. Tag: para +#: reference_output.xml:269 +#, no-c-format +msgid "Version 4: ST_AsGeoJSON(gj_version, geom) / precision=15 options=0" +msgstr "" + +#. Tag: para +#: reference_output.xml:270 +#, no-c-format +msgid "Version 5: ST_AsGeoJSON(gj_version, geom, precision) /options=0" +msgstr "" + +#. Tag: para +#: reference_output.xml:271 +#, no-c-format +msgid "Version 6: ST_AsGeoJSON(gj_version, geom, precision,options)" +msgstr "" + +#. Tag: para +#: reference_output.xml:273 +#, no-c-format +msgid "Availability: 1.3.4" +msgstr "" + +#. Tag: para +#: reference_output.xml:275 +#, no-c-format +msgid "Changed: 2.0.0 support default args and named args." +msgstr "" + +#. Tag: para +#: reference_output.xml:281 +#, no-c-format +msgid "" +"GeoJSON format is generally more efficient than other formats for use in " +"ajax mapping. One popular javascript client that supports this is Open " +"Layers. Example of its use is OpenLayers GeoJSON Example" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:286 +#, no-c-format +msgid "" +"SELECT ST_AsGeoJSON(the_geom) from fe_edges limit 1;\n" +" st_asgeojson\n" +"-----------------------------------------------------------------------------------------------------------\n" +"\n" +"{\"type\":\"MultiLineString\",\"coordinates\":" +"[[[-89.734634999999997,31.492072000000000],\n" +"[-89.734955999999997,31.492237999999997]]]}\n" +"(1 row)\n" +"--3d point\n" +"SELECT ST_AsGeoJSON('LINESTRING(1 2 3, 4 5 6)');\n" +"\n" +"st_asgeojson\n" +"-----------------------------------------------------------------------------------------\n" +" {\"type\":\"LineString\",\"coordinates\":[[1,2,3],[4,5,6]]}" +msgstr "" + +#. Tag: refname +#: reference_output.xml:291 +#, no-c-format +msgid "ST_AsGML" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:292 +#, no-c-format +msgid "Return the geometry as a GML version 2 or 3 element." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:296 +#, no-c-format +msgid "" +" text ST_AsGML " +"integer version " +"geometry geom " +"integer " +"maxdecimaldigits=15 integer options=0 " +"text nprefix=null text " +"id=null " +"text ST_AsGML " +"integer version " +"geography geog " +"integer " +"maxdecimaldigits=15 integer options=0 " +"text nprefix=null text " +"id=null " +msgstr "" + +#. Tag: para +#: reference_output.xml:337 +#, no-c-format +msgid "" +"Return the geometry as a Geography Markup Language (GML) element. The " +"version parameter, if specified, may be either 2 or 3. If no version " +"parameter is specified then the default is assumed to be 2. The precision " +"argument may be used to reduce the maximum number of decimal places " +"(maxdecimaldigits) used in output (defaults to 15)." +msgstr "" + +#. Tag: para +#: reference_output.xml:342 +#, no-c-format +msgid "GML 2 refer to 2.1.2 version, GML 3 to 3.1.1 version" +msgstr "" + +#. Tag: para +#: reference_output.xml:343 +#, no-c-format +msgid "" +"The 'options' argument is a bitfield. It could be used to define CRS output " +"type in GML output, and to declare data as lat/lon:" +msgstr "" + +#. Tag: para +#: reference_output.xml:347 +#, no-c-format +msgid "0: GML Short CRS (e.g EPSG:4326), default value" +msgstr "" + +#. Tag: para +#: reference_output.xml:351 +#, no-c-format +msgid "1: GML Long CRS (e.g urn:ogc:def:crs:EPSG::4326)" +msgstr "" + +#. Tag: para +#: reference_output.xml:355 +#, no-c-format +msgid "2: For GML 3 only, remove srsDimension attribute from output." +msgstr "" + +#. Tag: para +#: reference_output.xml:359 +#, no-c-format +msgid "" +"4: For GML 3 only, use <LineString> rather than <Curve> tag for " +"lines." +msgstr "" + +#. Tag: para +#: reference_output.xml:363 +#, no-c-format +msgid "" +"16: Declare that datas are lat/lon (e.g srid=4326). Default is to assume " +"that data are planars. This option is useful for GML 3.1.1 output only, " +"related to axis order. So if you set it, it will swap the coordinates so " +"order is lat lon instead of database lon lat." +msgstr "" + +#. Tag: para +#: reference_output.xml:369 +#, no-c-format +msgid "32: Output the box of the geometry (envelope)." +msgstr "" + +#. Tag: para +#: reference_output.xml:374 +#, no-c-format +msgid "" +"The 'namespace prefix' argument may be used to specify a custom namespace " +"prefix or no prefix (if empty). If null or omitted 'gml' prefix is used" +msgstr "" + +#. Tag: para +#: reference_output.xml:378 +#, no-c-format +msgid "Availability: 1.3.2" +msgstr "" + +#. Tag: para +#: reference_output.xml:380 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 prefix support was introduced. Option 4 for GML3 was " +"introduced to allow using LineString instead of Curve tag for lines. GML3 " +"Support for Polyhedral surfaces and TINS was introduced. Option 32 was " +"introduced to output the box." +msgstr "" + +#. Tag: para +#: reference_output.xml:381 +#, no-c-format +msgid "Changed: 2.0.0 use default named args" +msgstr "" + +#. Tag: para +#: reference_output.xml:382 +#, no-c-format +msgid "Enhanced: 2.1.0 id support was introduced, for GML 3." +msgstr "" + +#. Tag: para +#: reference_output.xml:384 +#, no-c-format +msgid "Only version 3+ of ST_AsGML supports Polyhedral Surfaces and TINS." +msgstr "" + +#. Tag: title +#: reference_output.xml:391 +#, no-c-format +msgid "Examples: Version 2" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:392 +#, no-c-format +msgid "" +"0,0 0,1 1,1 1,0 0,0]]>" +msgstr "" + +#. Tag: title +#: reference_output.xml:395 +#, no-c-format +msgid "Examples: Version 3" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:396 +#, no-c-format +msgid "" +"-- Flip coordinates and output extended EPSG (16 | 1)--\n" +"6.34535 5.23423]]>" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:397 +#, no-c-format +msgid "" +"-- Output the envelope (32) --\n" +"\n" +" 1 2\n" +" 10 20\n" +" ]]>" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:399 +#, no-c-format +msgid "" +"-- Output the envelope (32) , reverse (lat lon instead of lon lat) (16), " +"long srs (1)= 32 | 16 | 1 = 49 --\n" +"\n" +" 2 1\n" +" 20 10\n" +"]]>" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:401 +#, no-c-format +msgid "" +"-- Polyhedral Example --\n" +"SELECT ST_AsGML(3, ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 " +"1, 0 1 0, 0 0 0)), \n" +"((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 " +"0)), \n" +"((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +"((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 " +"1)) )'));\n" +" st_asgml\n" +" --------\n" +"\n" +"\n" +" \n" +" \n" +" \n" +" 0 0 0 0 0 " +"1 0 1 1 0 1 0 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 0 0 0 0 1 " +"0 1 1 0 1 0 0 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 0 0 0 1 0 " +"0 1 0 1 0 0 1 0 0 0\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 1 1 0 1 1 " +"1 1 0 1 1 0 0 1 1 0\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 0 1 0 0 1 " +"1 1 1 1 1 1 0 0 1 0\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" 0 0 1 1 0 " +"1 1 1 1 0 1 1 0 0 1\n" +" \n" +" \n" +" \n" +"\n" +"]]>" +msgstr "" + +#. Tag: refname +#: reference_output.xml:414 +#, no-c-format +msgid "ST_AsHEXEWKB" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:416 +#, no-c-format +msgid "" +"Returns a Geometry in HEXEWKB format (as text) using either little-endian " +"(NDR) or big-endian (XDR) encoding." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:421 +#, no-c-format +msgid "" +" text ST_AsHEXEWKB " +"geometry g1 " +"text NDRorXDR text ST_AsHEXEWKB geometry g1 " +msgstr "" + +#. Tag: para +#: reference_output.xml:438 +#, no-c-format +msgid "" +"Returns a Geometry in HEXEWKB format (as text) using either little-endian " +"(NDR) or big-endian (XDR) encoding. If no encoding is specified, then NDR is " +"used." +msgstr "" + +#. Tag: para +#: reference_output.xml:442 +#, no-c-format +msgid "Availability: 1.2.2" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:450 +#, no-c-format +msgid "" +"SELECT ST_AsHEXEWKB(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 " +"0))',4326));\n" +" which gives same answer as\n" +"\n" +" SELECT ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 " +"0))',4326)::text;\n" +"\n" +" st_ashexewkb\n" +" --------\n" +" 0103000020E6100000010000000500\n" +" 00000000000000000000000000000000\n" +" 00000000000000000000000000000000F03F\n" +" 000000000000F03F000000000000F03F000000000000F03\n" +" F000000000000000000000000000000000000000000000000" +msgstr "" + +#. Tag: refname +#: reference_output.xml:456 +#, no-c-format +msgid "ST_AsKML" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:458 +#, no-c-format +msgid "" +"Return the geometry as a KML element. Several variants. Default version=2, " +"default precision=15" +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:462 +#, no-c-format +msgid "" +" text ST_AsKML " +"geometry geom " +"integer " +"maxdecimaldigits=15 " +" text ST_AsKML " +"geography geog " +"integer " +"maxdecimaldigits=15 " +" text ST_AsKML " +"integer version " +"geometry geom " +"integer " +"maxdecimaldigits=15 text nprefix=NULL text ST_AsKML integer version geography geog integer " +"maxdecimaldigits=15 text nprefix=NULL " +msgstr "" + +#. Tag: para +#: reference_output.xml:494 +#, no-c-format +msgid "" +"Return the geometry as a Keyhole Markup Language (KML) element. There are " +"several variants of this function. maximum number of decimal places used in " +"output (defaults to 15), version default to 2 and default namespace is no " +"prefix." +msgstr "" + +#. Tag: para +#: reference_output.xml:498 +#, no-c-format +msgid "" +"Version 1: ST_AsKML(geom_or_geog, maxdecimaldigits) / version=2 / " +"maxdecimaldigits=15" +msgstr "" + +#. Tag: para +#: reference_output.xml:499 +#, no-c-format +msgid "" +"Version 2: ST_AsKML(version, geom_or_geog, maxdecimaldigits, nprefix) " +"maxdecimaldigits=15 / nprefix=NULL" +msgstr "" + +#. Tag: para +#: reference_output.xml:502 +#, no-c-format +msgid "" +"Requires PostGIS be compiled with Proj support. Use to confirm you have proj support compiled in." +msgstr "" + +#. Tag: para +#: reference_output.xml:506 +#, no-c-format +msgid "" +"Availability: 1.2.2 - later variants that include version param came in 1.3.2" +msgstr "" + +#. Tag: para +#: reference_output.xml:509 +#, no-c-format +msgid "Enhanced: 2.0.0 - Add prefix namespace. Default is no prefix" +msgstr "" + +#. Tag: para +#: reference_output.xml:512 +#, no-c-format +msgid "Changed: 2.0.0 - uses default args and supports named args" +msgstr "" + +#. Tag: para +#: reference_output.xml:516 +#, no-c-format +msgid "AsKML output will not work with geometries that do not have an SRID" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:524 +#, no-c-format +msgid "" +"0,0 0,1 " +"1,1 1,0 0,0\n" +"\n" +" --3d linestring\n" +" SELECT ST_AsKML('SRID=4326;LINESTRING(1 2 3, 4 5 6)');\n" +" 1,2,3 4,5,6\n" +" ]]>" +msgstr "" + +#. Tag: para +#: reference_output.xml:529 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_output.xml:534 +#, no-c-format +msgid "ST_AsSVG" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:536 +#, no-c-format +msgid "" +"Returns a Geometry in SVG path data given a geometry or geography object." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:540 +#, no-c-format +msgid "" +" text ST_AsSVG " +"geometry geom " +"integer rel=0 integer " +"maxdecimaldigits=15 " +" text ST_AsSVG " +"geography geog " +"integer rel=0 integer " +"maxdecimaldigits=15 " +msgstr "" + +#. Tag: para +#: reference_output.xml:559 +#, no-c-format +msgid "" +"Return the geometry as Scalar Vector Graphics (SVG) path data. Use 1 as " +"second argument to have the path data implemented in terms of relative " +"moves, the default (or 0) uses absolute moves. Third argument may be used to " +"reduce the maximum number of decimal digits used in output (defaults to 15). " +"Point geometries will be rendered as cx/cy when 'rel' arg is 0, x/y when " +"'rel' is 1. Multipoint geometries are delimited by commas (\",\"), " +"GeometryCollection geometries are delimited by semicolons (\";\")." +msgstr "" + +#. Tag: para +#: reference_output.xml:569 +#, no-c-format +msgid "" +"Availability: 1.2.2. Availability: 1.4.0 Changed in PostGIS 1.4.0 to include " +"L command in absolute path to conform to http://www.w3.org/TR/SVG/paths." +"html#PathDataBNF" +msgstr "" + +#. Tag: para +#: reference_output.xml:572 +#, no-c-format +msgid "Changed: 2.0.0 to use default args and support named args" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:577 +#, no-c-format +msgid "" +"SELECT ST_AsSVG(ST_GeomFromText('POLYGON((0 0,0 1,1 1,1 0,0 0))',4326));\n" +"\n" +" st_assvg\n" +" --------\n" +" M 0 0 L 0 -1 1 -1 1 0 Z" +msgstr "" + +#. Tag: refname +#: reference_output.xml:583 +#, no-c-format +msgid "ST_AsX3D" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:585 +#, no-c-format +msgid "" +"Returns a Geometry in X3D xml node element format: ISO-IEC-19776-1.2-" +"X3DEncodings-XML" +msgstr "" + +#. Tag: funcprototype +#: reference_output.xml:590 +#, no-c-format +msgid "" +"text ST_AsX3D " +"geometry g1 " +"integer " +"maxdecimaldigits=15 integer options=0" +msgstr "" + +#. Tag: para +#: reference_output.xml:602 +#, no-c-format +msgid "" +"Returns a geometry as an X3D xml formatted node element http://web3d.org/x3d/specifications/ISO-IEC-19776-1.2-" +"X3DEncodings-XML/Part01/EncodingOfNodes.html. If " +"maxdecimaldigits (precision) is not specified then " +"defaults to 15." +msgstr "" + +#. Tag: para +#: reference_output.xml:604 +#, no-c-format +msgid "" +"There are various options for translating PostGIS geometries to X3D since " +"X3D geometry types don't map directly to PostGIS geometry types and some " +"newer X3D types that might be better mappings we ahve avoided since most " +"rendering tools don't currently support them. These are the mappings we have " +"settled on. Feel free to post a bug ticket if you have thoughts on the idea " +"or ways we can allow people to denote their preferred mappings." +msgstr "" + +#. Tag: para +#: reference_output.xml:606 +#, no-c-format +msgid "Below is how we currently map PostGIS 2D/3D types to X3D types" +msgstr "" + +#. Tag: entry +#: reference_output.xml:613 +#, no-c-format +msgid "PostGIS Type" +msgstr "" + +#. Tag: entry +#: reference_output.xml:614 +#, no-c-format +msgid "2D X3D Type" +msgstr "" + +#. Tag: entry +#: reference_output.xml:615 +#, no-c-format +msgid "3D X3D Type" +msgstr "" + +#. Tag: entry +#: reference_output.xml:620 +#, no-c-format +msgid "LINESTRING" +msgstr "" + +#. Tag: entry +#: reference_output.xml:621 reference_output.xml:626 +#, no-c-format +msgid "not yet implemented - will be PolyLine2D" +msgstr "" + +#. Tag: entry +#: reference_output.xml:622 +#, no-c-format +msgid "LineSet" +msgstr "" + +#. Tag: entry +#: reference_output.xml:625 +#, no-c-format +msgid "MULTILINESTRING" +msgstr "" + +#. Tag: entry +#: reference_output.xml:627 +#, no-c-format +msgid "IndexedLineSet" +msgstr "" + +#. Tag: entry +#: reference_output.xml:630 +#, no-c-format +msgid "MULTIPOINT" +msgstr "" + +#. Tag: entry +#: reference_output.xml:631 +#, no-c-format +msgid "Polypoint2D" +msgstr "" + +#. Tag: entry +#: reference_output.xml:632 +#, no-c-format +msgid "PointSet" +msgstr "" + +#. Tag: entry +#: reference_output.xml:635 +#, no-c-format +msgid "POINT" +msgstr "" + +#. Tag: entry +#: reference_output.xml:636 reference_output.xml:637 +#, no-c-format +msgid "outputs the space delimited coordinates" +msgstr "" + +#. Tag: entry +#: reference_output.xml:640 +#, no-c-format +msgid "(MULTI) POLYGON, POLYHEDRALSURFACE" +msgstr "" + +#. Tag: entry +#: reference_output.xml:641 +#, no-c-format +msgid "Invalid X3D markup" +msgstr "" + +#. Tag: entry +#: reference_output.xml:642 +#, no-c-format +msgid "IndexedFaceSet (inner rings currently output as another faceset)" +msgstr "" + +#. Tag: entry +#: reference_output.xml:645 +#, no-c-format +msgid "TIN" +msgstr "" + +#. Tag: entry +#: reference_output.xml:646 +#, no-c-format +msgid "TriangleSet2D (Not Yet Implemented)" +msgstr "" + +#. Tag: entry +#: reference_output.xml:647 +#, no-c-format +msgid "IndexedTriangleSet" +msgstr "" + +#. Tag: para +#: reference_output.xml:652 +#, no-c-format +msgid "" +"2D geometry support not yet complete. Inner rings currently just drawn as " +"separate polygons. We are working on these." +msgstr "" + +#. Tag: para +#: reference_output.xml:653 +#, no-c-format +msgid "" +"Lots of advancements happening in 3D space particularly with X3D Integration with HTML5" +msgstr "" + +#. Tag: para +#: reference_output.xml:654 +#, no-c-format +msgid "" +"There is also a nice open source X3D viewer you can use to view rendered " +"geometries. Free Wrl http://" +"freewrl.sourceforge.net/ binaries available for Mac, Linux, and " +"Windows. Use the FreeWRL_Launcher packaged to view the geometries." +msgstr "" + +#. Tag: para +#: reference_output.xml:655 +#, no-c-format +msgid "Availability: 2.0.0: ISO-IEC-19776-1.2-X3DEncodings-XML" +msgstr "" + +#. Tag: title +#: reference_output.xml:667 +#, no-c-format +msgid "" +"Example: Create a fully functional X3D document - This will generate a cube " +"that is viewable in FreeWrl and other X3D viewers." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:668 +#, no-c-format +msgid "" +"\n" +"\n" +"\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" ' || \n" +" ST_AsX3D( ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 1, " +"0 1 0, 0 0 0)), \n" +"((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 " +"0)), \n" +"((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +"((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 " +"1)) )')) ||\n" +" '\n" +" \n" +" \n" +"' As x3ddoc;]]>\n" +"\n" +" x3ddoc\n" +" --------\n" +"\n" +"\n" +"\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +"]]>" +msgstr "" + +#. Tag: title +#: reference_output.xml:671 +#, no-c-format +msgid "Example: An Octagon elevated 3 Units and decimal precision of 6" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:672 +#, no-c-format +msgid "" +"SELECT ST_AsX3D(\n" +"ST_Translate(\n" +" ST_Force_3d(\n" +" ST_Buffer(ST_Point(10,10),5, 'quad_segs=2')), 0,0,\n" +" 3)\n" +" ,6) As x3dfrag;\n" +"\n" +"x3dfrag\n" +"--------\n" +"\n" +" \n" +"]]>" +msgstr "" + +#. Tag: title +#: reference_output.xml:675 +#, no-c-format +msgid "Example: TIN" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:676 +#, no-c-format +msgid "" +"\n" +"\n" +" x3dfrag\n" +" --------\n" +"]]>" +msgstr "" + +#. Tag: title +#: reference_output.xml:679 +#, no-c-format +msgid "Example: Closed multilinestring (the boundary of a polygon with holes)" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:680 +#, no-c-format +msgid "" +"\n" +"\n" +" x3dfrag\n" +" --------\n" +"\n" +" \n" +" ]]>" +msgstr "" + +#. Tag: refname +#: reference_output.xml:686 +#, no-c-format +msgid "ST_GeoHash" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:688 +#, no-c-format +msgid "Return a GeoHash representation (geohash.org) of the geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_output.xml:693 +#, no-c-format +msgid "" +"text ST_GeoHash " +"geometry geom " +"integer " +"maxchars=full_precision_of_point" +msgstr "" + +#. Tag: para +#: reference_output.xml:704 +#, no-c-format +msgid "" +"Return a GeoHash representation (geohash.org) of the geometry. A GeoHash " +"encodes a point into a text form that is sortable and searchable based on " +"prefixing. A shorter GeoHash is a less precise representation of a point. It " +"can also be thought of as a box, that contains the actual point." +msgstr "" + +#. Tag: para +#: reference_output.xml:706 +#, no-c-format +msgid "" +"If no maxchars is specficified ST_GeoHash returns a " +"GeoHash based on full precision of the input geometry type. Points return a " +"GeoHash with 20 characters of precision (about enough to hold the full " +"double precision of the input). Other types return a GeoHash with a variable " +"amount of precision, based on the size of the feature. Larger features are " +"represented with less precision, smaller features with more precision. The " +"idea is that the box implied by the GeoHash will always contain the input " +"feature." +msgstr "" + +#. Tag: para +#: reference_output.xml:708 +#, no-c-format +msgid "" +"If maxchars is specified ST_GeoHash returns a GeoHash " +"with at most that many characters so a possibly lower precision " +"representation of the input geometry. For non-points, the starting point of " +"the calculation is the center of the bounding box of the geometry." +msgstr "" + +#. Tag: para +#: reference_output.xml:710 +#, no-c-format +msgid "Availability: 1.4.0" +msgstr "" + +#. Tag: para +#: reference_output.xml:713 +#, no-c-format +msgid "" +"ST_GeoHash will not work with geometries that are not in geographic (lon/" +"lat) coordinates." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:721 +#, no-c-format +msgid "" +"" +msgstr "" + +#. Tag: refname +#: reference_output.xml:733 +#, no-c-format +msgid "ST_AsText" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:734 +#, no-c-format +msgid "" +"Return the Well-Known Text (WKT) representation of the geometry/geography " +"without SRID metadata." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:738 +#, no-c-format +msgid "" +" text ST_AsText " +"geometry g1 text ST_AsText geography g1 " +msgstr "" + +#. Tag: para +#: reference_output.xml:753 +#, no-c-format +msgid "Returns the Well-Known Text representation of the geometry/geography." +msgstr "" + +#. Tag: para +#: reference_output.xml:756 +#, no-c-format +msgid "" +"The WKT spec does not include the SRID. To get the SRID as part of the data, " +"use the non-standard PostGIS " +msgstr "" + +#. Tag: para +#: reference_output.xml:763 +#, no-c-format +msgid "" +"ST_AsText is the reverse of . Use to convert to a postgis geometry from " +"ST_AsText representation." +msgstr "" + +#. Tag: para +#: reference_output.xml:766 +#, no-c-format +msgid "Availability: 1.5 - support for geography was introduced." +msgstr "" + +#. Tag: para +#: reference_output.xml:768 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.25" +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:776 +#, no-c-format +msgid "" +"SELECT ST_AsText('01030000000100000005000000000000000000\n" +"000000000000000000000000000000000000000000000000\n" +"F03F000000000000F03F000000000000F03F000000000000F03\n" +"F000000000000000000000000000000000000000000000000');\n" +"\n" +" st_astext\n" +"--------------------------------\n" +" POLYGON((0 0,0 1,1 1,1 0,0 0))\n" +"(1 row)" +msgstr "" + +#. Tag: para +#: reference_output.xml:783 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_output.xml:790 +#, no-c-format +msgid "ST_AsLatLonText" +msgstr "" + +#. Tag: refpurpose +#: reference_output.xml:791 +#, no-c-format +msgid "Return the Degrees, Minutes, Seconds representation of the given point." +msgstr "" + +#. Tag: funcsynopsis +#: reference_output.xml:795 +#, no-c-format +msgid "" +" text ST_AsLatLonText " +"geometry pt text ST_AsLatLonText geometry pt text format " +msgstr "" + +#. Tag: para +#: reference_output.xml:811 +#, no-c-format +msgid "Returns the Degrees, Minutes, Seconds representation of the point." +msgstr "" + +#. Tag: para +#: reference_output.xml:814 +#, no-c-format +msgid "" +"It is assumed the point is in a lat/lon projection. The X (lon) and Y (lat) " +"coordinates are normalized in the output to the \"normal\" range (-180 to " +"+180 for lon, -90 to +90 for lat)." +msgstr "" + +#. Tag: para +#: reference_output.xml:817 +#, no-c-format +msgid "" +"The text parameter is a format string containing the format for the " +"resulting text, similar to a date format string. Valid tokens are \"D\" for " +"degrees, \"M\" for minutes, \"S\" for seconds, and \"C\" for cardinal " +"direction (NSEW). DMS tokens may be repeated to indicate desired width and " +"precision (\"SSS.SSSS\" means \" 1.0023\")." +msgstr "" + +#. Tag: para +#: reference_output.xml:822 +#, no-c-format +msgid "" +"\"M\", \"S\", and \"C\" are optional. If \"C\" is omitted, degrees are shown " +"with a \"-\" sign if south or west. If \"S\" is omitted, minutes will be " +"shown as decimal with as many digits of precision as you specify. If \"M\" " +"is also omitted, degrees are shown as decimal with as many digits precision " +"as you specify." +msgstr "" + +#. Tag: para +#: reference_output.xml:827 +#, no-c-format +msgid "" +"If the format string is omitted (or zero-length) a default format will be " +"used." +msgstr "" + +#. Tag: para +#: reference_output.xml:833 +#, no-c-format +msgid "Availability: 2.0" +msgstr "" + +#. Tag: para +#: reference_output.xml:839 +#, no-c-format +msgid "Default format." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:840 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-3.2342342 -2.32498)'));\n" +" st_aslatlontext \n" +"----------------------------\n" +" 2°19'29.928\"S 3°14'3.243\"W" +msgstr "" + +#. Tag: para +#: reference_output.xml:841 +#, no-c-format +msgid "Providing a format (same as the default)." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:842 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-3.2342342 -2.32498)', 'D°M''S.SSS\"C'));\n" +" st_aslatlontext \n" +"----------------------------\n" +" 2°19'29.928\"S 3°14'3.243\"W" +msgstr "" + +#. Tag: para +#: reference_output.xml:843 +#, no-c-format +msgid "Characters other than D, M, S, C and . are just passed through." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:844 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-3.2342342 -2.32498)', 'D degrees, M " +"minutes, S seconds to the C'));\n" +" st_aslatlontext \n" +"--------------------------------------------------------------------------------------\n" +" 2 degrees, 19 minutes, 30 seconds to the S 3 degrees, 14 minutes, 3 seconds " +"to the W" +msgstr "" + +#. Tag: para +#: reference_output.xml:845 +#, no-c-format +msgid "Signed degrees instead of cardinal directions." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:846 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-3.2342342 -2.32498)', 'D°M''S.SSS\"'));\n" +" st_aslatlontext \n" +"----------------------------\n" +" -2°19'29.928\" -3°14'3.243\"" +msgstr "" + +#. Tag: para +#: reference_output.xml:847 +#, no-c-format +msgid "Decimal degrees." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:848 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-3.2342342 -2.32498)', 'D.DDDD degrees " +"C'));\n" +" st_aslatlontext \n" +"-----------------------------------\n" +" 2.3250 degrees S 3.2342 degrees W" +msgstr "" + +#. Tag: para +#: reference_output.xml:849 +#, no-c-format +msgid "Excessively large values are normalized." +msgstr "" + +#. Tag: programlisting +#: reference_output.xml:850 +#, no-c-format +msgid "" +"SELECT (ST_AsLatLonText('POINT (-302.2342342 -792.32498)'));\n" +" st_aslatlontext \n" +"-------------------------------\n" +" 72°19'29.928\"S 57°45'56.757\"E" +msgstr "" diff --git a/doc/po/it_IT/reference_processing.xml.po b/doc/po/it_IT/reference_processing.xml.po new file mode 100644 index 000000000..06fd42ed4 --- /dev/null +++ b/doc/po/it_IT/reference_processing.xml.po @@ -0,0 +1,3813 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_processing.xml:3 +#, no-c-format +msgid "Geometry Processing" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:6 +#, no-c-format +msgid "ST_Buffer" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:8 +#, no-c-format +msgid "" +"(T) For geometry: Returns a geometry that represents all points whose " +"distance from this Geometry is less than or equal to distance. Calculations " +"are in the Spatial Reference System of this Geometry. For geography: Uses a " +"planar transform wrapper. Introduced in 1.5 support for different end cap " +"and mitre settings to control shape. buffer_style options: quad_segs=#," +"endcap=round|flat|square,join=round|mitre|bevel,mitre_limit=#.#" +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:16 +#, no-c-format +msgid "" +" geometry ST_Buffer " +"geometry g1 " +"float radius_of_buffer geometry " +"ST_Buffer geometry " +"g1 float " +"radius_of_buffer integer num_seg_quarter_circle geometry ST_Buffer geometry g1 float " +"radius_of_buffer text buffer_style_parameters geography ST_Buffer geography g1 float " +"radius_of_buffer_in_meters " +msgstr "" + +#. Tag: title +#: reference_processing.xml:47 reference_processing.xml:221 +#: reference_processing.xml:307 reference_processing.xml:373 +#: reference_processing.xml:522 reference_processing.xml:590 +#: reference_processing.xml:638 reference_processing.xml:736 +#: reference_processing.xml:816 reference_processing.xml:874 +#: reference_processing.xml:942 reference_processing.xml:989 +#: reference_processing.xml:1041 reference_processing.xml:1093 +#: reference_processing.xml:1133 reference_processing.xml:1192 +#: reference_processing.xml:1239 reference_processing.xml:1298 +#: reference_processing.xml:1350 reference_processing.xml:1404 +#: reference_processing.xml:1557 reference_processing.xml:1593 +#: reference_processing.xml:1670 reference_processing.xml:1720 +#: reference_processing.xml:1766 reference_processing.xml:1808 +#: reference_processing.xml:1919 reference_processing.xml:2012 +#: reference_processing.xml:2081 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_processing.xml:49 +#, no-c-format +msgid "" +"Returns a geometry/geography that represents all points whose distance from " +"this Geometry/geography is less than or equal to distance." +msgstr "" + +#. Tag: para +#: reference_processing.xml:51 +#, no-c-format +msgid "" +"Geometry: Calculations are in the Spatial Reference System of the geometry. " +"Introduced in 1.5 support for different end cap and mitre settings to " +"control shape." +msgstr "" + +#. Tag: para +#: reference_processing.xml:54 +#, no-c-format +msgid "" +"Negative radii: For polygons, a negative radius can be used, which will " +"shrink the polygon rather than expanding it." +msgstr "" + +#. Tag: para +#: reference_processing.xml:55 +#, no-c-format +msgid "" +"Geography: For geography this is really a thin wrapper around the geometry " +"implementation. It first determines the best SRID that fits the bounding box " +"of the geography object (favoring UTM, Lambert Azimuthal Equal Area (LAEA) " +"north/south pole, and falling back on mercator in worst case scenario) and " +"then buffers in that planar spatial ref and retransforms back to WGS84 " +"geography." +msgstr "" + +#. Tag: para +#: reference_processing.xml:57 +#, no-c-format +msgid "" +"For geography this may not behave as expected if object is sufficiently " +"large that it falls between two UTM zones or crosses the dateline" +msgstr "" + +#. Tag: para +#: reference_processing.xml:59 +#, no-c-format +msgid "" +"Availability: 1.5 - ST_Buffer was enhanced to support different endcaps and " +"join types. These are useful for example to convert road linestrings into " +"polygon roads with flat or square edges instead of rounded edges. Thin " +"wrapper for geography was added. - requires GEOS >= 3.2 to take advantage " +"of advanced geometry functionality." +msgstr "" + +#. Tag: para +#: reference_processing.xml:62 +#, no-c-format +msgid "" +"The optional third parameter (currently only applies to geometry) can either " +"specify number of segments used to approximate a quarter circle (integer " +"case, defaults to 8) or a list of blank-separated key=value pairs (string " +"case) to tweak operations as follows:" +msgstr "" + +#. Tag: para +#: reference_processing.xml:66 reference_processing.xml:1427 +#, no-c-format +msgid "" +"'quad_segs=#' : number of segments used to approximate a quarter circle " +"(defaults to 8)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:69 +#, no-c-format +msgid "" +"'endcap=round|flat|square' : endcap style (defaults to \"round\", needs " +"GEOS-3.2 or higher for a different value). 'butt' is also accepted as a " +"synonym for 'flat'." +msgstr "" + +#. Tag: para +#: reference_processing.xml:72 +#, no-c-format +msgid "" +"'join=round|mitre|bevel' : join style (defaults to \"round\", needs GEOS-3.2 " +"or higher for a different value). 'miter' is also accepted as a synonym for " +"'mitre'." +msgstr "" + +#. Tag: para +#: reference_processing.xml:75 +#, no-c-format +msgid "" +"'mitre_limit=#.#' : mitre ratio limit (only affects mitered join style). " +"'miter_limit' is also accepted as a synonym for 'mitre_limit'." +msgstr "" + +#. Tag: para +#: reference_processing.xml:80 +#, no-c-format +msgid "Units of radius are measured in units of the spatial reference system." +msgstr "" + +#. Tag: para +#: reference_processing.xml:81 +#, no-c-format +msgid "" +"The inputs can be POINTS, MULTIPOINTS, LINESTRINGS, MULTILINESTRINGS, " +"POLYGONS, MULTIPOLYGONS, and GeometryCollections." +msgstr "" + +#. Tag: para +#: reference_processing.xml:82 +#, no-c-format +msgid "" +"This function ignores the third dimension (z) and will always give a 2-d " +"buffer even when presented with a 3d-geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:84 reference_processing.xml:1444 +#: reference_processing.xml:1732 reference_processing.xml:1775 +#: reference_processing.xml:2032 +#, no-c-format +msgid "Performed by the GEOS module." +msgstr "" + +#. Tag: para +#: reference_processing.xml:85 reference_processing.xml:541 +#: reference_processing.xml:747 reference_processing.xml:1063 +#: reference_processing.xml:1930 reference_processing.xml:2041 +#, no-c-format +msgid "&sfs_compliant; s2.1.1.3" +msgstr "" + +#. Tag: para +#: reference_processing.xml:86 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.17" +msgstr "" + +#. Tag: para +#: reference_processing.xml:88 +#, no-c-format +msgid "" +"People often make the mistake of using this function to try to do radius " +"searches. Creating a buffer to to a radius search is slow and pointless. Use " +" instead." +msgstr "" + +#. Tag: title +#: reference_processing.xml:93 reference_processing.xml:238 +#: reference_processing.xml:343 reference_processing.xml:411 +#: reference_processing.xml:547 reference_processing.xml:604 +#: reference_processing.xml:754 reference_processing.xml:957 +#: reference_processing.xml:1067 reference_processing.xml:1104 +#: reference_processing.xml:1208 reference_processing.xml:1256 +#: reference_processing.xml:1367 reference_processing.xml:1453 +#: reference_processing.xml:1690 reference_processing.xml:1737 +#: reference_processing.xml:1781 reference_processing.xml:1823 +#: reference_processing.xml:1938 reference_processing.xml:2048 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: para +#: reference_processing.xml:104 +#, no-c-format +msgid "quad_segs=8 (default)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:107 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText('POINT(100 90)'),\n" +" 50, 'quad_segs=8');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:115 +#, no-c-format +msgid "quad_segs=2 (lame)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:118 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText('POINT(100 90)'),\n" +" 50, 'quad_segs=2');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:127 +#, no-c-format +msgid "endcap=round join=round (default)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:130 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'endcap=round join=round');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:138 +#, no-c-format +msgid "endcap=square" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:141 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'endcap=square join=round');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:149 +#, no-c-format +msgid "endcap=flat" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:152 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'endcap=flat join=round');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:161 +#, no-c-format +msgid "join=bevel" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:164 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'join=bevel');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:172 +#, no-c-format +msgid "join=mitre mitre_limit=5.0 (default mitre limit)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:175 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'join=mitre mitre_limit=5.0');" +msgstr "" + +#. Tag: para +#: reference_processing.xml:183 +#, no-c-format +msgid "join=mitre mitre_limit=1" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:186 +#, no-c-format +msgid "" +"SELECT ST_Buffer(\n" +" ST_GeomFromText(\n" +" 'LINESTRING(50 50,150 150,150 50)'\n" +" ), 10, 'join=mitre mitre_limit=1.0');" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:193 +#, no-c-format +msgid "" +"--A buffered point approximates a circle\n" +"-- A buffered point forcing approximation of (see diagram)\n" +"-- 2 points per circle is poly with 8 sides (see diagram)\n" +"SELECT ST_NPoints(ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50)) As " +"promisingcircle_pcount,\n" +"ST_NPoints(ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50, 2)) As " +"lamecircle_pcount;\n" +"\n" +"promisingcircle_pcount | lamecircle_pcount\n" +"------------------------+-------------------\n" +" 33 | 9\n" +"\n" +"--A lighter but lamer circle\n" +"-- only 2 points per quarter circle is an octagon\n" +"--Below is a 100 meter octagon\n" +"-- Note coordinates are in NAD 83 long lat which we transform\n" +"to Mass state plane meter and then buffer to get measurements in meters;\n" +"SELECT ST_AsText(ST_Buffer(\n" +"ST_Transform(\n" +"ST_SetSRID(ST_MakePoint(-71.063526, 42.35785),4269), 26986)\n" +",100,2)) As octagon;\n" +"----------------------\n" +"POLYGON((236057.59057465 900908.759918696,236028.301252769 " +"900838.049240578,235\n" +"957.59057465 900808.759918696,235886.879896532 " +"900838.049240578,235857.59057465\n" +"900908.759918696,235886.879896532 900979.470596815,235957.59057465 " +"901008.759918\n" +"696,236028.301252769 900979.470596815,236057.59057465 900908.759918696))" +msgstr "" + +#. Tag: title +#: reference_processing.xml:197 reference_processing.xml:272 +#: reference_processing.xml:350 reference_processing.xml:500 +#: reference_processing.xml:563 reference_processing.xml:611 +#: reference_processing.xml:711 reference_processing.xml:794 +#: reference_processing.xml:853 reference_processing.xml:920 +#: reference_processing.xml:964 reference_processing.xml:1071 +#: reference_processing.xml:1111 reference_processing.xml:1165 +#: reference_processing.xml:1215 reference_processing.xml:1269 +#: reference_processing.xml:1322 reference_processing.xml:1373 +#: reference_processing.xml:1535 reference_processing.xml:1571 +#: reference_processing.xml:1641 reference_processing.xml:1697 +#: reference_processing.xml:1742 reference_processing.xml:1786 +#: reference_processing.xml:1894 reference_processing.xml:1979 +#: reference_processing.xml:2055 reference_processing.xml:2109 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: para +#: reference_processing.xml:199 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:205 +#, no-c-format +msgid "ST_BuildArea" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:207 +#, no-c-format +msgid "" +"Creates an areal geometry formed by the constituent linework of given " +"geometry" +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:213 +#, no-c-format +msgid "" +"geometry ST_BuildArea " +"geometry A" +msgstr "" + +#. Tag: para +#: reference_processing.xml:223 +#, no-c-format +msgid "" +"Creates an areal geometry formed by the constituent linework of given " +"geometry. The return type can be a Polygon or MultiPolygon, depending on " +"input. If the input lineworks do not form polygons NULL is returned. The " +"inputs can be LINESTRINGS, MULTILINESTRINGS, POLYGONS, MULTIPOLYGONS, and " +"GeometryCollections." +msgstr "" + +#. Tag: para +#: reference_processing.xml:228 +#, no-c-format +msgid "This function will assume all inner geometries represent holes" +msgstr "" + +#. Tag: para +#: reference_processing.xml:231 reference_processing.xml:1310 +#, no-c-format +msgid "" +"Input linework must be correctly noded for this function to work properly" +msgstr "" + +#. Tag: para +#: reference_processing.xml:234 +#, no-c-format +msgid "Availability: 1.1.0 - requires GEOS >= 2.1.0." +msgstr "" + +#. Tag: para +#: reference_processing.xml:248 +#, no-c-format +msgid "This will create a donut" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:251 +#, no-c-format +msgid "" +"SELECT ST_BuildArea(ST_Collect(smallc,bigc))\n" +"FROM (SELECT\n" +" ST_Buffer(\n" +" ST_GeomFromText('POINT(100 90)'), 25) As smallc,\n" +" ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As bigc) As foo;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:260 +#, no-c-format +msgid "" +"This will create a gaping hole inside the circle with prongs sticking out" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:263 +#, no-c-format +msgid "" +"SELECT ST_BuildArea(ST_Collect(line,circle))\n" +"FROM (SELECT\n" +" ST_Buffer(\n" +" ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190)),\n" +" 5) As line,\n" +" ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo;\n" +"\n" +"--this creates the same gaping hole\n" +"--but using linestrings instead of polygons\n" +"SELECT ST_BuildArea(\n" +" ST_Collect(ST_ExteriorRing(line),ST_ExteriorRing(circle))\n" +" )\n" +"FROM (SELECT ST_Buffer(\n" +" ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190))\n" +" ,5) As line,\n" +" ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:274 +#, no-c-format +msgid "" +", , , " +"wrappers to this function with " +"standard OGC interface" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:284 +#, no-c-format +msgid "ST_Collect" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:285 +#, no-c-format +msgid "" +"Return a specified ST_Geometry value from a collection of other geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:289 +#, no-c-format +msgid "" +" geometry ST_Collect " +"geometry set g1field geometry " +"ST_Collect geometry " +"g1 geometry " +"g2 " +"geometry ST_Collect " +"geometry[] g1_array " +"" +msgstr "" + +#. Tag: para +#: reference_processing.xml:308 +#, no-c-format +msgid "" +"Output type can be a MULTI* or a GEOMETRYCOLLECTION. Comes in 2 variants. " +"Variant 1 collects 2 geometries. Variant 2 is an aggregate function that " +"takes a set of geometries and collects them into a single ST_Geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:312 +#, no-c-format +msgid "" +"Aggregate version: This function returns a GEOMETRYCOLLECTION or a MULTI " +"object from a set of geometries. The ST_Collect() function is an \"aggregate" +"\" function in the terminology of PostgreSQL. That means that it operates on " +"rows of data, in the same way the SUM() and AVG() functions do. For example, " +"\"SELECT ST_Collect(GEOM) FROM GEOMTABLE GROUP BY ATTRCOLUMN\" will return a " +"separate GEOMETRYCOLLECTION for each distinct value of ATTRCOLUMN." +msgstr "" + +#. Tag: para +#: reference_processing.xml:320 +#, no-c-format +msgid "" +"Non-Aggregate version: This function returns a geometry being a collection " +"of two input geometries. Output type can be a MULTI* or a GEOMETRYCOLLECTION." +msgstr "" + +#. Tag: para +#: reference_processing.xml:324 +#, no-c-format +msgid "" +"ST_Collect and ST_Union are often interchangeable. ST_Collect is in general " +"orders of magnitude faster than ST_Union because it does not try to dissolve " +"boundaries or validate that a constructed MultiPolgon doesn't have " +"overlapping regions. It merely rolls up single geometries into MULTI and " +"MULTI or mixed geometry types into Geometry Collections. Unfortunately " +"geometry collections are not well-supported by GIS tools. To prevent " +"ST_Collect from returning a Geometry Collection when collecting MULTI " +"geometries, one can use the below trick that utilizes to expand the MULTIs out to singles and then regroup them." +msgstr "" + +#. Tag: para +#: reference_processing.xml:335 +#, no-c-format +msgid "" +"Availability: 1.4.0 - ST_Collect(geomarray) was introduced. ST_Collect was " +"enhanced to handle more geometries faster." +msgstr "" + +#. Tag: para +#: reference_processing.xml:336 reference_processing.xml:543 +#: reference_processing.xml:598 reference_processing.xml:650 +#: reference_processing.xml:840 reference_processing.xml:894 +#: reference_processing.xml:952 reference_processing.xml:992 +#: reference_processing.xml:1098 reference_processing.xml:1160 +#: reference_processing.xml:1203 reference_processing.xml:1357 +#: reference_processing.xml:1567 reference_processing.xml:1682 +#: reference_processing.xml:2101 +#, no-c-format +msgid "&Z_support;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:337 +#, no-c-format +msgid "" +"&curve_support; This method supports Circular Strings and Curves, but will " +"never return a MULTICURVE or MULTI as one would expect and PostGIS does not " +"currently support those." +msgstr "" + +#. Tag: para +#: reference_processing.xml:344 +#, no-c-format +msgid "" +"Aggregate example (http://postgis.refractions.net/" +"pipermail/postgis-users/2008-June/020331.html)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:345 +#, no-c-format +msgid "" +"SELECT stusps,\n" +" ST_Multi(ST_Collect(f.the_geom)) as singlegeom\n" +" FROM (SELECT stusps, (ST_Dump(the_geom)).geom As the_geom\n" +" FROM\n" +" somestatetable ) As f\n" +"GROUP BY stusps" +msgstr "" + +#. Tag: para +#: reference_processing.xml:346 reference_processing.xml:2051 +#, no-c-format +msgid "Non-Aggregate example" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:347 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Collect(ST_GeomFromText('POINT(1 2)'),\n" +" ST_GeomFromText('POINT(-2 3)') ));\n" +"\n" +"st_astext\n" +"----------\n" +"MULTIPOINT(1 2,-2 3)\n" +"\n" +"--Collect 2 d points\n" +"SELECT ST_AsText(ST_Collect(ST_GeomFromText('POINT(1 2)'),\n" +" ST_GeomFromText('POINT(1 2)') ) );\n" +"\n" +"st_astext\n" +"----------\n" +"MULTIPOINT(1 2,1 2)\n" +"\n" +"--Collect 3d points\n" +"SELECT ST_AsEWKT(ST_Collect(ST_GeomFromEWKT('POINT(1 2 3)'),\n" +" ST_GeomFromEWKT('POINT(1 2 4)') ) );\n" +"\n" +" st_asewkt\n" +"-------------------------\n" +" MULTIPOINT(1 2 3,1 2 4)\n" +"\n" +" --Example with curves\n" +"SELECT ST_AsText(ST_Collect(ST_GeomFromText('CIRCULARSTRING(220268 " +"150415,220227 150505,220227 150406)'),\n" +"ST_GeomFromText('CIRCULARSTRING(220227 150406,2220227 150407,220227 " +"150406)')));\n" +" st_astext\n" +"------------------------------------------------------------------------------------\n" +" GEOMETRYCOLLECTION(CIRCULARSTRING(220268 150415,220227 150505,220227 " +"150406),\n" +" CIRCULARSTRING(220227 150406,2220227 150407,220227 150406))\n" +"\n" +"--New ST_Collect array construct\n" +"SELECT ST_Collect(ARRAY(SELECT the_geom FROM sometable));\n" +"\n" +"SELECT ST_AsText(ST_Collect(ARRAY[ST_GeomFromText('LINESTRING(1 2, 3 4)'),\n" +" ST_GeomFromText('LINESTRING(3 4, 4 5)')])) As " +"wktcollect;\n" +"\n" +"--wkt collect --\n" +"MULTILINESTRING((1 2,3 4),(3 4,4 5))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:351 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:356 +#, no-c-format +msgid "ST_ConcaveHull" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:357 +#, no-c-format +msgid "" +"The concave hull of a geometry represents a possibly concave geometry that " +"encloses all geometries within the set. You can think of it as shrink " +"wrapping." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:363 +#, no-c-format +msgid "" +"geometry ST_ConcaveHull " +"geometry geomA " +"float target_percent boolean " +"allow_holes=false" +msgstr "" + +#. Tag: para +#: reference_processing.xml:374 +#, no-c-format +msgid "" +"The concave hull of a geometry represents a possibly concave geometry that " +"encloses all geometries within the set. Defaults to false for allowing " +"polygons with holes. The result is never higher than a single polygon." +msgstr "" + +#. Tag: para +#: reference_processing.xml:378 +#, no-c-format +msgid "" +"The target_percent is the target percent of area of convex hull the PostGIS " +"solution will try to approach before giving up or exiting. One can think of " +"the concave hull as the geometry you get by vacuum sealing a set of " +"geometries. The target_percent of 1 will give you the same answer as the " +"convex hull. A target_percent between 0 and 0.99 will give you something " +"that should have a smaller area than the convex hull. This is different from " +"a convex hull which is more like wrapping a rubber band around the set of " +"geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:383 +#, no-c-format +msgid "" +"It is usually used with MULTI and Geometry Collections. Although it is not " +"an aggregate - you can use it in conjunction with ST_Collect or ST_Union to " +"get the concave hull of a set of points/linestring/polygons ST_ConcaveHull" +"(ST_Collect(somepointfield), 0.80)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:388 +#, no-c-format +msgid "" +"It is much slower to compute than convex hull but encloses the geometry " +"better and is also useful for image recognition." +msgstr "" + +#. Tag: para +#: reference_processing.xml:391 reference_processing.xml:539 +#: reference_processing.xml:743 reference_processing.xml:1059 +#: reference_processing.xml:1926 +#, no-c-format +msgid "Performed by the GEOS module" +msgstr "" + +#. Tag: para +#: reference_processing.xml:392 +#, no-c-format +msgid "" +"Note - If you are using with points, linestrings, or geometry collections " +"use ST_Collect. If you are using with polygons, use ST_Union since it may " +"fail with invalid geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:395 +#, no-c-format +msgid "" +"Note - The smaller you make the target percent, the longer it takes to " +"process the concave hull and more likely to run into topological exceptions. " +"Also the more floating points and number of points you accrue. First try a " +"0.99 which does a first hop, is usually very fast, sometimes as fast as " +"computing the convex hull, and usually gives much better than 99% of shrink " +"since it almost always overshoots. Second hope of 0.98 it slower, others get " +"slower usually quadratically. To reduce precision and float points, use " +" or after ST_ConcaveHull. ST_SnapToGrid is a bit faster, but " +"could result in invalid geometries where as ST_SimplifyPreserveTopology " +"almost always preserves the validity of the geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:400 +#, no-c-format +msgid "" +"More real world examples and brief explanation of the technique are shown " +"http://" +"www.bostongis.com/postgis_concavehull.snippet" +msgstr "" + +#. Tag: para +#: reference_processing.xml:403 +#, no-c-format +msgid "" +"Also check out Simon Greener's article on demonstrating ConcaveHull " +"introduced in Oracle 11G R2. http://www.spatialdbadvisor.com/" +"oracle_spatial_tips_tricks/172/concave-hull-geometries-in-oracle-11gr2. The solution we get at 0.75 target percent of convex hull is similar " +"to the shape Simon gets with Oracle SDO_CONCAVEHULL_BOUNDARY." +msgstr "" + +#. Tag: para +#: reference_processing.xml:407 reference_processing.xml:994 +#: reference_processing.xml:1565 reference_processing.xml:1819 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:412 +#, no-c-format +msgid "" +"--Get estimate of infected area based on point observations\n" +"SELECT d.disease_type,\n" +" ST_ConcaveHull(ST_Collect(d.pnt_geom), 0.99) As geom\n" +" FROM disease_obs As d\n" +" GROUP BY d.disease_type;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:422 +#, no-c-format +msgid "ST_ConcaveHull of 2 polygons encased in target 100% shrink concave hull" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:425 +#, no-c-format +msgid "" +"-- geometries overlaid with concavehull \n" +"-- at target 100% shrink (this is the same as convex hull - since no " +"shrink)\n" +"SELECT \n" +" ST_ConcaveHull(\n" +" ST_Union(ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ), 1) \n" +" As convexhull;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:432 +#, no-c-format +msgid "" +"-- geometries overlaid with concavehull at target 90% of convex hull area" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:436 +#, no-c-format +msgid "" +"-- geometries overlaid with concavehull at target 90% shrink\n" +"SELECT \n" +" ST_ConcaveHull(\n" +" ST_Union(ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ), 0.9) \n" +" As target_90;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:445 +#, no-c-format +msgid "L Shape points overlaid with convex hull" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:448 +#, no-c-format +msgid "" +"-- this produces a table of 42 points that form an L shape\n" +"SELECT (ST_DumpPoints(ST_GeomFromText(\n" +"'MULTIPOINT(14 14,34 14,54 14,74 14,94 14,114 14,134 14,\n" +"150 14,154 14,154 6,134 6,114 6,94 6,74 6,54 6,34 6,\n" +"14 6,10 6,8 6,7 7,6 8,6 10,6 30,6 50,6 70,6 90,6 110,6 130,\n" +"6 150,6 170,6 190,6 194,14 194,14 174,14 154,14 134,14 114,\n" +"14 94,14 74,14 54,14 34,14 14)'))).geom \n" +" INTO TABLE l_shape;\n" +"\n" +"SELECT ST_ConvexHull(ST_Collect(geom))\n" +"FROM l_shape;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:455 +#, no-c-format +msgid "ST_ConcaveHull of L points at target 99% of convex hull" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:458 +#, no-c-format +msgid "" +"SELECT ST_ConcaveHull(ST_Collect(geom), 0.99)\n" +" FROM l_shape;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:467 +#, no-c-format +msgid "Concave Hull of L points at target 80% convex hull area" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:470 +#, no-c-format +msgid "" +"-- Concave Hull L shape points\n" +" -- at target 80% of convexhull\n" +" SELECT ST_ConcaveHull(ST_Collect(geom), 0.80)\n" +" FROM l_shape;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:479 +#, no-c-format +msgid "multilinestring overlaid with Convex hull" +msgstr "" + +#. Tag: para +#: reference_processing.xml:487 +#, no-c-format +msgid "" +"multilinestring with overlaid with Concave hull of linestrings at 99% target " +"-- first hop" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:491 +#, no-c-format +msgid "" +"SELECT ST_ConcaveHull(ST_GeomFromText('MULTILINESTRING((106 164,30 112,74 " +"70,82 112,130 94,\n" +" 130 62,122 40,156 32,162 76,172 88),\n" +"(132 178,134 148,128 136,96 128,132 108,150 130,\n" +"170 142,174 110,156 96,158 90,158 88),\n" +"(22 64,66 28,94 38,94 68,114 76,112 30,\n" +"132 10,168 18,178 34,186 52,184 74,190 100,\n" +"190 122,182 148,178 170,176 184,156 164,146 178,\n" +"132 186,92 182,56 158,36 150,62 150,76 128,88 118))'),0.99)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:501 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:507 +#, no-c-format +msgid "ST_ConvexHull" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:508 +#, no-c-format +msgid "" +"The convex hull of a geometry represents the minimum convex " +"geometry that encloses all geometries within the set." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:514 +#, no-c-format +msgid "" +"geometry ST_ConvexHull " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_processing.xml:523 +#, no-c-format +msgid "" +"The convex hull of a geometry represents the minimum convex geometry " +"that encloses all geometries within the set." +msgstr "" + +#. Tag: para +#: reference_processing.xml:526 +#, no-c-format +msgid "" +"One can think of the convex hull as the geometry you get by wrapping an " +"elastic band around a set of geometries. This is different from a concave " +"hull which is analogous to shrink-wrapping your geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:530 +#, no-c-format +msgid "" +"It is usually used with MULTI and Geometry Collections. Although it is not " +"an aggregate - you can use it in conjunction with ST_Collect to get the " +"convex hull of a set of points. ST_ConvexHull(ST_Collect(somepointfield))." +msgstr "" + +#. Tag: para +#: reference_processing.xml:535 +#, no-c-format +msgid "" +"It is often used to determine an affected area based on a set of point " +"observations." +msgstr "" + +#. Tag: para +#: reference_processing.xml:542 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.16" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:548 +#, no-c-format +msgid "" +"--Get estimate of infected area based on point observations\n" +"SELECT d.disease_type,\n" +" ST_ConvexHull(ST_Collect(d.the_geom)) As the_geom\n" +" FROM disease_obs As d\n" +" GROUP BY d.disease_type;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:556 +#, no-c-format +msgid "" +"Convex Hull of a MultiLinestring and a MultiPoint seen together with the " +"MultiLinestring and MultiPoint" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:559 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_ConvexHull(\n" +" ST_Collect(\n" +" ST_GeomFromText('MULTILINESTRING((100 190,10 8),(150 10, 20 " +"30))'),\n" +" ST_GeomFromText('MULTIPOINT(50 5, 150 30, 50 10, 10 " +"10)')\n" +" )) );\n" +"---st_astext--\n" +"POLYGON((50 5,10 8,10 10,100 190,150 30,150 10,50 5))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:564 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:570 +#, no-c-format +msgid "ST_CurveToLine" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:572 +#, no-c-format +msgid "Converts a CIRCULARSTRING/CURVEDPOLYGON to a LINESTRING/POLYGON" +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:576 +#, no-c-format +msgid "" +" geometry ST_CurveToLine geometry curveGeom geometry " +"ST_CurveToLine geometry curveGeom integer segments_per_qtr_circle " +msgstr "" + +#. Tag: para +#: reference_processing.xml:592 +#, no-c-format +msgid "" +"Converst a CIRCULAR STRING to regular LINESTRING or CURVEPOLYGON to POLYGON. " +"Useful for outputting to devices that can't support CIRCULARSTRING geometry " +"types" +msgstr "" + +#. Tag: para +#: reference_processing.xml:593 +#, no-c-format +msgid "" +"Converts a given geometry to a linear geometry. Each curved geometry or " +"segment is converted into a linear approximation using the default value of " +"32 segments per quarter circle" +msgstr "" + +#. Tag: para +#: reference_processing.xml:595 reference_processing.xml:1097 +#, no-c-format +msgid "Availability: 1.2.2?" +msgstr "" + +#. Tag: para +#: reference_processing.xml:596 +#, no-c-format +msgid "&sfs_compliant;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:597 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 7.1.7" +msgstr "" + +#. Tag: para +#: reference_processing.xml:599 reference_processing.xml:837 +#: reference_processing.xml:891 reference_processing.xml:991 +#: reference_processing.xml:1099 +#, no-c-format +msgid "&curve_support;" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:606 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_CurveToLine(ST_GeomFromText('CIRCULARSTRING(220268 " +"150415,220227 150505,220227 150406)')));\n" +"\n" +"--Result --\n" +" LINESTRING(220268 150415,220269.95064912 150416.539364228,220271.823415575 " +"150418.17258804,220273.613787707 150419.895736857,\n" +" 220275.317452352 150421.704659462,220276.930305234 " +"150423.594998003,220278.448460847 150425.562198489,\n" +" 220279.868261823 150427.60152176,220281.186287736 " +"150429.708054909,220282.399363347 150431.876723113,\n" +" 220283.50456625 150434.10230186,220284.499233914 " +"150436.379429536,220285.380970099 150438.702620341,220286.147650624 " +"150441.066277505,\n" +" 220286.797428488 150443.464706771,220287.328738321 " +"150445.892130112,220287.740300149 150448.342699654,\n" +" 220288.031122486 150450.810511759,220288.200504713 " +"150453.289621251,220288.248038775 150455.77405574,\n" +" 220288.173610157 150458.257830005,220287.977398166 " +"150460.734960415,220287.659875492 150463.199479347,\n" +" 220287.221807076 150465.64544956,220286.664248262 " +"150468.066978495,220285.988542259 150470.458232479,220285.196316903 " +"150472.81345077,\n" +" 220284.289480732 150475.126959442,220283.270218395 " +"150477.39318505,220282.140985384 150479.606668057,\n" +" 220280.90450212 150481.762075989,220279.5637474 " +"150483.85421628,220278.12195122 150485.87804878,\n" +" 220276.582586992 150487.828697901,220274.949363179 " +"150489.701464356,220273.226214362 150491.491836488,\n" +" 220271.417291757 150493.195501133,220269.526953216 " +"150494.808354014,220267.559752731 150496.326509628,\n" +" 220265.520429459 150497.746310603,220263.41389631 " +"150499.064336517,220261.245228106 150500.277412127,\n" +" 220259.019649359 150501.38261503,220256.742521683 " +"150502.377282695,220254.419330878 150503.259018879,\n" +" 220252.055673714 150504.025699404,220249.657244448 " +"150504.675477269,220247.229821107 150505.206787101,\n" +" 220244.779251566 150505.61834893,220242.311439461 " +"150505.909171266,220239.832329968 150506.078553494,\n" +" 220237.347895479 150506.126087555,220234.864121215 " +"150506.051658938,220232.386990804 150505.855446946,\n" +" 220229.922471872 150505.537924272,220227.47650166 " +"150505.099855856,220225.054972724 150504.542297043,\n" +" 220222.663718741 150503.86659104,220220.308500449 150503.074365683,\n" +" 220217.994991777 150502.167529512,220215.72876617 150501.148267175,\n" +" 220213.515283163 150500.019034164,220211.35987523 150498.7825509,\n" +" 220209.267734939 150497.441796181,220207.243902439 150496,\n" +" 220205.293253319 150494.460635772,220203.420486864 " +"150492.82741196,220201.630114732 150491.104263143,\n" +" 220199.926450087 150489.295340538,220198.313597205 " +"150487.405001997,220196.795441592 150485.437801511,\n" +" 220195.375640616 150483.39847824,220194.057614703 " +"150481.291945091,220192.844539092 150479.123276887,220191.739336189 " +"150476.89769814,\n" +" 220190.744668525 150474.620570464,220189.86293234 " +"150472.297379659,220189.096251815 150469.933722495,\n" +" 220188.446473951 150467.535293229,220187.915164118 " +"150465.107869888,220187.50360229 150462.657300346,\n" +" 220187.212779953 150460.189488241,220187.043397726 " +"150457.710378749,220186.995863664 150455.22594426,\n" +" 220187.070292282 150452.742169995,220187.266504273 " +"150450.265039585,220187.584026947 150447.800520653,\n" +" 220188.022095363 150445.35455044,220188.579654177 " +"150442.933021505,220189.25536018 150440.541767521,\n" +" 220190.047585536 150438.18654923,220190.954421707 " +"150435.873040558,220191.973684044 150433.60681495,\n" +" 220193.102917055 150431.393331943,220194.339400319 " +"150429.237924011,220195.680155039 150427.14578372,220197.12195122 " +"150425.12195122,\n" +" 220198.661315447 150423.171302099,220200.29453926 " +"150421.298535644,220202.017688077 150419.508163512,220203.826610682 " +"150417.804498867,\n" +" 220205.716949223 150416.191645986,220207.684149708 " +"150414.673490372,220209.72347298 150413.253689397,220211.830006129 " +"150411.935663483,\n" +" 220213.998674333 150410.722587873,220216.22425308 " +"150409.61738497,220218.501380756 150408.622717305,220220.824571561 " +"150407.740981121,\n" +" 220223.188228725 150406.974300596,220225.586657991 150406.324522731,220227 " +"150406)\n" +"\n" +"--3d example\n" +"SELECT ST_AsEWKT(ST_CurveToLine(ST_GeomFromEWKT('CIRCULARSTRING(220268 " +"150415 1,220227 150505 2,220227 150406 3)')));\n" +"Output\n" +"------\n" +" LINESTRING(220268 150415 1,220269.95064912 150416.539364228 " +"1.0181172856673,\n" +" 220271.823415575 150418.17258804 1.03623457133459,220273.613787707 " +"150419.895736857 1.05435185700189,....AD INFINITUM ....\n" +" 220225.586657991 150406.324522731 1.32611114201132,220227 150406 3)\n" +"\n" +"--use only 2 segments to approximate quarter circle\n" +"SELECT ST_AsText(ST_CurveToLine(ST_GeomFromText('CIRCULARSTRING(220268 " +"150415,220227 150505,220227 150406)'),2));\n" +"st_astext\n" +"------------------------------\n" +" LINESTRING(220268 150415,220287.740300149 150448.342699654,220278.12195122 " +"150485.87804878,\n" +" 220244.779251566 150505.61834893,220207.243902439 150496,220187.50360229 " +"150462.657300346,\n" +" 220197.12195122 150425.12195122,220227 150406)" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:619 +#, no-c-format +msgid "ST_DelaunayTriangles" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:621 +#, no-c-format +msgid "Return a Delaunay triangulation around the given input points." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:628 +#, no-c-format +msgid "" +"geometry ST_DelaunayTriangles " +"geometry g1 " +"float tolerance " +"int4 flags" +msgstr "" + +#. Tag: para +#: reference_processing.xml:640 +#, no-c-format +msgid "" +"Return a Delaunay triangulation around the vertices of the input geometry. " +"Output is a COLLECTION of polygons (for flags=0) or a MULTILINESTRING (for " +"flags=1). The tolerance, if any, is used to snap input vertices togheter." +msgstr "" + +#. Tag: para +#: reference_processing.xml:649 +#, no-c-format +msgid "Availability: 2.1.0 - requires GEOS >= 3.4.0." +msgstr "" + +#. Tag: title +#: reference_processing.xml:654 +#, no-c-format +msgid "2D Examples" +msgstr "" + +#. Tag: para +#: reference_processing.xml:663 +#, no-c-format +msgid "Original polygons" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:666 +#, no-c-format +msgid "" +"-- our original geometry --\n" +" ST_Union(ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" )" +msgstr "" + +#. Tag: para +#: reference_processing.xml:674 +#, no-c-format +msgid "" +"ST_DelaunayTriangles of 2 polygons: delaunay triangle polygons each triangle " +"themed in different color" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:677 +#, no-c-format +msgid "" +"-- geometries overlaid multilinestring triangles\n" +"SELECT \n" +" ST_DelaunayTriangles(\n" +" ST_Union(ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" )) \n" +" As dtriag;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:684 +#, no-c-format +msgid "-- delaunay triangles as multilinestring" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:687 +#, no-c-format +msgid "" +"SELECT \n" +" ST_DelaunayTriangles(\n" +" ST_Union(ST_GeomFromText('POLYGON((175 150, 20 40, \n" +" 50 60, 125 100, 175 150))'),\n" +" ST_Buffer(ST_GeomFromText('POINT(110 170)'), 20)\n" +" ),0.001,1) \n" +" As dtriag;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:695 +#, no-c-format +msgid "-- delaunay triangles of 45 points as 55 triangle polygons" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:698 +#, no-c-format +msgid "" +"-- this produces a table of 42 points that form an L shape\n" +"SELECT (ST_DumpPoints(ST_GeomFromText(\n" +"'MULTIPOINT(14 14,34 14,54 14,74 14,94 14,114 14,134 14,\n" +"150 14,154 14,154 6,134 6,114 6,94 6,74 6,54 6,34 6,\n" +"14 6,10 6,8 6,7 7,6 8,6 10,6 30,6 50,6 70,6 90,6 110,6 130,\n" +"6 150,6 170,6 190,6 194,14 194,14 174,14 154,14 134,14 114,\n" +"14 94,14 74,14 54,14 34,14 14)'))).geom \n" +" INTO TABLE l_shape;\n" +"-- output as individual polygon triangles\n" +"SELECT ST_AsText((ST_Dump(geom)).geom) As wkt\n" +"FROM ( SELECT ST_DelaunayTriangles(ST_Collect(geom)) As geom\n" +"FROM l_shape) As foo;\n" +"\n" +"---wkt ---\n" +"POLYGON((6 194,6 190,14 194,6 194))\n" +"POLYGON((14 194,6 190,14 174,14 194))\n" +"POLYGON((14 194,14 174,154 14,14 194))\n" +"POLYGON((154 14,14 174,14 154,154 14))\n" +"POLYGON((154 14,14 154,150 14,154 14))\n" +"POLYGON((154 14,150 14,154 6,154 14))\n" +":\n" +":" +msgstr "" + +#. Tag: title +#: reference_processing.xml:707 +#, no-c-format +msgid "3D Examples" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:708 +#, no-c-format +msgid "" +"-- 3D multipoint --\n" +"SELECT ST_AsText(ST_DelaunayTriangles(ST_GeomFromText(\n" +"'MULTIPOINT Z(14 14 10,\n" +"150 14 100,34 6 25, 20 10 150)'))) As wkt;\n" +"\n" +"-----wkt----\n" +"GEOMETRYCOLLECTION Z (POLYGON Z ((14 14 10,20 10 150,34 6 25,14 14 10))\n" +" ,POLYGON Z ((14 14 10,34 6 25,150 14 100,14 14 10)))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:712 reference_processing.xml:1323 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:719 +#, no-c-format +msgid "ST_Difference" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:721 +#, no-c-format +msgid "" +"Returns a geometry that represents that part of geometry A that does not " +"intersect with geometry B." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:727 +#, no-c-format +msgid "" +"geometry ST_Difference " +"geometry geomA " +"geometry geomB" +msgstr "" + +#. Tag: para +#: reference_processing.xml:738 +#, no-c-format +msgid "" +"Returns a geometry that represents that part of geometry A that does not " +"intersect with geometry B. One can think of this as GeometryA - " +"ST_Intersection(A,B). If A is completely contained in B then an empty " +"geometry collection is returned." +msgstr "" + +#. Tag: para +#: reference_processing.xml:741 +#, no-c-format +msgid "Note - order matters. B - A will always return a portion of B" +msgstr "" + +#. Tag: para +#: reference_processing.xml:745 reference_processing.xml:1928 +#, no-c-format +msgid "Do not call with a GeometryCollection as an argument" +msgstr "" + +#. Tag: para +#: reference_processing.xml:748 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.20" +msgstr "" + +#. Tag: para +#: reference_processing.xml:749 reference_processing.xml:1932 +#, no-c-format +msgid "" +"&Z_support; However it seems to only consider x y when doing the difference " +"and tacks back on the Z-Index" +msgstr "" + +#. Tag: para +#: reference_processing.xml:766 +#, no-c-format +msgid "The original linestrings shown together." +msgstr "" + +#. Tag: para +#: reference_processing.xml:778 +#, no-c-format +msgid "The difference of the two linestrings" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:787 +#, no-c-format +msgid "" +"--Safe for 2d. This is same geometries as what is shown for " +"st_symdifference\n" +"SELECT ST_AsText(\n" +" ST_Difference(\n" +" ST_GeomFromText('LINESTRING(50 100, 50 200)'),\n" +" ST_GeomFromText('LINESTRING(50 50, 50 150)')\n" +" )\n" +" );\n" +"\n" +"st_astext\n" +"---------\n" +"LINESTRING(50 150,50 200)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:789 +#, no-c-format +msgid "" +"--When used in 3d doesn't quite do the right thing\n" +"SELECT ST_AsEWKT(ST_Difference(ST_GeomFromEWKT('MULTIPOINT(-118.58 38.38 " +"5,-118.60 38.329 6,-118.614 38.281 7)'), ST_GeomFromEWKT('POINT(-118.614 " +"38.281 5)')));\n" +"st_asewkt\n" +"---------\n" +"MULTIPOINT(-118.6 38.329 6,-118.58 38.38 5)" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:802 +#, no-c-format +msgid "ST_Dump" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:803 +#, no-c-format +msgid "" +"Returns a set of geometry_dump (geom,path) rows, that make up a geometry g1." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:808 +#, no-c-format +msgid "" +"geometry_dump[] ST_Dump " +"geometry g1" +msgstr "" + +#. Tag: para +#: reference_processing.xml:817 +#, no-c-format +msgid "" +"This is a set-returning function (SRF). It returns a set of geometry_dump " +"rows, formed by a geometry (geom) and an array of integers (path). When the " +"input geometry is a simple type (POINT,LINESTRING,POLYGON) a single record " +"will be returned with an empty path array and the input geometry as geom. " +"When the input geometry is a collection or multi it will return a record for " +"each of the collection components, and the path will express the position of " +"the component inside the collection." +msgstr "" + +#. Tag: para +#: reference_processing.xml:826 +#, no-c-format +msgid "" +"ST_Dump is useful for expanding geometries. It is the reverse of a GROUP BY " +"in that it creates new rows. For example it can be use to expand " +"MULTIPOLYGONS into POLYGONS." +msgstr "" + +#. Tag: para +#: reference_processing.xml:830 reference_processing.xml:889 +#, no-c-format +msgid "" +"Enhanced: 2.0.0 support for Polyhedral surfaces, Triangles and TIN was " +"introduced." +msgstr "" + +#. Tag: para +#: reference_processing.xml:831 +#, no-c-format +msgid "Availability: PostGIS 1.0.0RC1. Requires PostgreSQL 7.3 or higher." +msgstr "" + +#. Tag: para +#: reference_processing.xml:833 +#, no-c-format +msgid "" +"Prior to 1.3.4, this function crashes if used with geometries that contain " +"CURVES. This is fixed in 1.3.4+" +msgstr "" + +#. Tag: para +#: reference_processing.xml:838 reference_processing.xml:892 +#: reference_processing.xml:995 reference_processing.xml:1566 +#: reference_processing.xml:1684 +#, no-c-format +msgid "&P_support;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:839 reference_processing.xml:893 +#: reference_processing.xml:996 reference_processing.xml:1685 +#, no-c-format +msgid "&T_support;" +msgstr "" + +#. Tag: title +#: reference_processing.xml:844 +#, no-c-format +msgid "Standard Examples" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:845 +#, no-c-format +msgid "" +"SELECT sometable.field1, sometable.field1,\n" +" (ST_Dump(sometable.the_geom)).geom AS the_geom\n" +"FROM sometable;\n" +"\n" +"-- Break a compound curve into its constituent linestrings and " +"circularstrings\n" +"SELECT ST_AsEWKT(a.geom), ST_HasArc(a.geom)\n" +" FROM ( SELECT (ST_Dump(p_geom)).geom AS geom\n" +" FROM (SELECT ST_GeomFromEWKT('COMPOUNDCURVE(CIRCULARSTRING(0 0, 1 " +"1, 1 0),(1 0, 0 1))') AS p_geom) AS b\n" +" ) AS a;\n" +" st_asewkt | st_hasarc\n" +"-----------------------------+----------\n" +" CIRCULARSTRING(0 0,1 1,1 0) | t\n" +" LINESTRING(1 0,0 1) | f\n" +"(2 rows)" +msgstr "" + +#. Tag: title +#: reference_processing.xml:847 reference_processing.xml:914 +#, no-c-format +msgid "Polyhedral Surfaces, TIN and Triangle Examples" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:848 +#, no-c-format +msgid "" +"-- Polyhedral surface example\n" +"-- Break a Polyhedral surface into its faces\n" +"SELECT (a.p_geom).path[1] As path, ST_AsEWKT((a.p_geom).geom) As geom_ewkt\n" +" FROM (SELECT ST_Dump(ST_GeomFromEWKT('POLYHEDRALSURFACE( \n" +"((0 0 0, 0 0 1, 0 1 1, 0 1 0, 0 0 0)), \n" +"((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 " +"0)), ((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +"((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 " +"1)) \n" +")') ) AS p_geom ) AS a;\n" +"\n" +" path | geom_ewkt\n" +"------+------------------------------------------\n" +" 1 | POLYGON((0 0 0,0 0 1,0 1 1,0 1 0,0 0 0))\n" +" 2 | POLYGON((0 0 0,0 1 0,1 1 0,1 0 0,0 0 0))\n" +" 3 | POLYGON((0 0 0,1 0 0,1 0 1,0 0 1,0 0 0))\n" +" 4 | POLYGON((1 1 0,1 1 1,1 0 1,1 0 0,1 1 0))\n" +" 5 | POLYGON((0 1 0,0 1 1,1 1 1,1 1 0,0 1 0))\n" +" 6 | POLYGON((0 0 1,1 0 1,1 1 1,0 1 1,0 0 1))" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:850 +#, no-c-format +msgid "" +"-- TIN -- \n" +"SELECT (g.gdump).path, ST_AsEWKT((g.gdump).geom) as wkt\n" +" FROM\n" +" (SELECT \n" +" ST_Dump( ST_GeomFromEWKT('TIN (((\n" +" 0 0 0, \n" +" 0 0 1, \n" +" 0 1 0, \n" +" 0 0 0\n" +" )), ((\n" +" 0 0 0, \n" +" 0 1 0, \n" +" 1 1 0, \n" +" 0 0 0\n" +" ))\n" +" )') ) AS gdump\n" +" ) AS g;\n" +"-- result --\n" +" path | wkt\n" +"------+-------------------------------------\n" +" {1} | TRIANGLE((0 0 0,0 0 1,0 1 0,0 0 0))\n" +" {2} | TRIANGLE((0 0 0,0 1 0,1 1 0,0 0 0))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:854 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:860 +#, no-c-format +msgid "ST_DumpPoints" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:861 +#, no-c-format +msgid "" +"Returns a set of geometry_dump (geom,path) rows of all points that make up a " +"geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:866 +#, no-c-format +msgid "" +"geometry_dump[]ST_DumpPoints " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_processing.xml:875 +#, no-c-format +msgid "" +"This set-returning function (SRF) returns a set of geometry_dump rows formed by a geometry (geom) and an array of " +"integers (path)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:878 +#, no-c-format +msgid "" +"The geom component of geometry_dump are all the POINTs that make up the supplied " +"geometry" +msgstr "" + +#. Tag: para +#: reference_processing.xml:881 +#, no-c-format +msgid "" +"The path component of geometry_dump (an integer[]) is an index reference enumerating " +"the POINTs of the supplied geometry. For example, if a " +"LINESTRING is supplied, a path of {i} " +"is returned where i is the nth " +"coordinate in the LINESTRING. If a POLYGON is supplied, a path of {i,j} is returned where " +"i is the ring number (1 is outer; inner rings follow) and " +"j enumerates the POINTs (again 1-based " +"index)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:890 +#, no-c-format +msgid "Availability: 1.5.0" +msgstr "" + +#. Tag: title +#: reference_processing.xml:897 +#, no-c-format +msgid "Classic Explode a Table of LineStrings into nodes" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:898 +#, no-c-format +msgid "" +"SELECT edge_id, (dp).path[1] As index, ST_AsText((dp).geom) As wktnode\n" +"FROM (SELECT 1 As edge_id\n" +" , ST_DumpPoints(ST_GeomFromText('LINESTRING(1 2, 3 4, 10 10)')) AS " +"dp\n" +" UNION ALL\n" +" SELECT 2 As edge_id\n" +" , ST_DumpPoints(ST_GeomFromText('LINESTRING(3 5, 5 6, 9 10)')) AS " +"dp\n" +" ) As foo;\n" +" edge_id | index | wktnode\n" +"---------+-------+--------------\n" +" 1 | 1 | POINT(1 2)\n" +" 1 | 2 | POINT(3 4)\n" +" 1 | 3 | POINT(10 10)\n" +" 2 | 1 | POINT(3 5)\n" +" 2 | 2 | POINT(5 6)\n" +" 2 | 3 | POINT(9 10)" +msgstr "" + +#. Tag: title +#: reference_processing.xml:901 +#, no-c-format +msgid "Standard Geometry Examples" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:911 +#, no-c-format +msgid "" +"SELECT path, ST_AsText(geom) \n" +"FROM (\n" +" SELECT (ST_DumpPoints(g.geom)).* \n" +" FROM\n" +" (SELECT \n" +" 'GEOMETRYCOLLECTION(\n" +" POINT ( 0 1 ), \n" +" LINESTRING ( 0 3, 3 4 ),\n" +" POLYGON (( 2 0, 2 3, 0 2, 2 0 )),\n" +" POLYGON (( 3 0, 3 3, 6 3, 6 0, 3 0 ), \n" +" ( 5 1, 4 2, 5 2, 5 1 )),\n" +" MULTIPOLYGON (\n" +" (( 0 5, 0 8, 4 8, 4 5, 0 5 ), \n" +" ( 1 6, 3 6, 2 7, 1 6 )), \n" +" (( 5 4, 5 8, 6 7, 5 4 ))\n" +" )\n" +" )'::geometry AS geom\n" +" ) AS g\n" +" ) j;\n" +" \n" +" path | st_astext \n" +"-----------+------------\n" +" {1,1} | POINT(0 1)\n" +" {2,1} | POINT(0 3)\n" +" {2,2} | POINT(3 4)\n" +" {3,1,1} | POINT(2 0)\n" +" {3,1,2} | POINT(2 3)\n" +" {3,1,3} | POINT(0 2)\n" +" {3,1,4} | POINT(2 0)\n" +" {4,1,1} | POINT(3 0)\n" +" {4,1,2} | POINT(3 3)\n" +" {4,1,3} | POINT(6 3)\n" +" {4,1,4} | POINT(6 0)\n" +" {4,1,5} | POINT(3 0)\n" +" {4,2,1} | POINT(5 1)\n" +" {4,2,2} | POINT(4 2)\n" +" {4,2,3} | POINT(5 2)\n" +" {4,2,4} | POINT(5 1)\n" +" {5,1,1,1} | POINT(0 5)\n" +" {5,1,1,2} | POINT(0 8)\n" +" {5,1,1,3} | POINT(4 8)\n" +" {5,1,1,4} | POINT(4 5)\n" +" {5,1,1,5} | POINT(0 5)\n" +" {5,1,2,1} | POINT(1 6)\n" +" {5,1,2,2} | POINT(3 6)\n" +" {5,1,2,3} | POINT(2 7)\n" +" {5,1,2,4} | POINT(1 6)\n" +" {5,2,1,1} | POINT(5 4)\n" +" {5,2,1,2} | POINT(5 8)\n" +" {5,2,1,3} | POINT(6 7)\n" +" {5,2,1,4} | POINT(5 4)\n" +"(29 rows)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:915 +#, no-c-format +msgid "" +"-- Polyhedral surface cube -- \n" +"SELECT (g.gdump).path, ST_AsEWKT((g.gdump).geom) as wkt\n" +" FROM\n" +" (SELECT \n" +" ST_DumpPoints(ST_GeomFromEWKT('POLYHEDRALSURFACE( ((0 0 0, 0 0 1, 0 1 " +"1, 0 1 0, 0 0 0)), \n" +"((0 0 0, 0 1 0, 1 1 0, 1 0 0, 0 0 0)), ((0 0 0, 1 0 0, 1 0 1, 0 0 1, 0 0 " +"0)), \n" +"((1 1 0, 1 1 1, 1 0 1, 1 0 0, 1 1 0)), \n" +"((0 1 0, 0 1 1, 1 1 1, 1 1 0, 0 1 0)), ((0 0 1, 1 0 1, 1 1 1, 0 1 1, 0 0 " +"1)) )') ) AS gdump\n" +" ) AS g;\n" +"-- result --\n" +" path | wkt\n" +"---------+--------------\n" +" {1,1,1} | POINT(0 0 0)\n" +" {1,1,2} | POINT(0 0 1)\n" +" {1,1,3} | POINT(0 1 1)\n" +" {1,1,4} | POINT(0 1 0)\n" +" {1,1,5} | POINT(0 0 0)\n" +" {2,1,1} | POINT(0 0 0)\n" +" {2,1,2} | POINT(0 1 0)\n" +" {2,1,3} | POINT(1 1 0)\n" +" {2,1,4} | POINT(1 0 0)\n" +" {2,1,5} | POINT(0 0 0)\n" +" {3,1,1} | POINT(0 0 0)\n" +" {3,1,2} | POINT(1 0 0)\n" +" {3,1,3} | POINT(1 0 1)\n" +" {3,1,4} | POINT(0 0 1)\n" +" {3,1,5} | POINT(0 0 0)\n" +" {4,1,1} | POINT(1 1 0)\n" +" {4,1,2} | POINT(1 1 1)\n" +" {4,1,3} | POINT(1 0 1)\n" +" {4,1,4} | POINT(1 0 0)\n" +" {4,1,5} | POINT(1 1 0)\n" +" {5,1,1} | POINT(0 1 0)\n" +" {5,1,2} | POINT(0 1 1)\n" +" {5,1,3} | POINT(1 1 1)\n" +" {5,1,4} | POINT(1 1 0)\n" +" {5,1,5} | POINT(0 1 0)\n" +" {6,1,1} | POINT(0 0 1)\n" +" {6,1,2} | POINT(1 0 1)\n" +" {6,1,3} | POINT(1 1 1)\n" +" {6,1,4} | POINT(0 1 1)\n" +" {6,1,5} | POINT(0 0 1)\n" +"(30 rows)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:916 +#, no-c-format +msgid "" +"-- Triangle -- \n" +"SELECT (g.gdump).path, ST_AsText((g.gdump).geom) as wkt\n" +" FROM\n" +" (SELECT \n" +" ST_DumpPoints( ST_GeomFromEWKT('TRIANGLE ((\n" +" 0 0, \n" +" 0 9, \n" +" 9 0, \n" +" 0 0\n" +" ))') ) AS gdump\n" +" ) AS g;\n" +"-- result --\n" +" path | wkt\n" +"------+------------\n" +" {1} | POINT(0 0)\n" +" {2} | POINT(0 9)\n" +" {3} | POINT(9 0)\n" +" {4} | POINT(0 0)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:917 +#, no-c-format +msgid "" +"-- TIN -- \n" +"SELECT (g.gdump).path, ST_AsEWKT((g.gdump).geom) as wkt\n" +" FROM\n" +" (SELECT \n" +" ST_DumpPoints( ST_GeomFromEWKT('TIN (((\n" +" 0 0 0, \n" +" 0 0 1, \n" +" 0 1 0, \n" +" 0 0 0\n" +" )), ((\n" +" 0 0 0, \n" +" 0 1 0, \n" +" 1 1 0, \n" +" 0 0 0\n" +" ))\n" +" )') ) AS gdump\n" +" ) AS g;\n" +"-- result --\n" +" path | wkt\n" +"---------+--------------\n" +" {1,1,1} | POINT(0 0 0)\n" +" {1,1,2} | POINT(0 0 1)\n" +" {1,1,3} | POINT(0 1 0)\n" +" {1,1,4} | POINT(0 0 0)\n" +" {2,1,1} | POINT(0 0 0)\n" +" {2,1,2} | POINT(0 1 0)\n" +" {2,1,3} | POINT(1 1 0)\n" +" {2,1,4} | POINT(0 0 0)\n" +"(8 rows)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:921 +#, no-c-format +msgid "" +", , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:926 +#, no-c-format +msgid "ST_DumpRings" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:928 +#, no-c-format +msgid "" +"Returns a set of geometry_dump rows, representing the " +"exterior and interior rings of a polygon." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:934 +#, no-c-format +msgid "" +"geometry_dump[] ST_DumpRings " +"geometry a_polygon" +msgstr "" + +#. Tag: para +#: reference_processing.xml:944 +#, no-c-format +msgid "" +"This is a set-returning function (SRF). It returns a set of " +"geometry_dump rows, defined as an integer[] and a geometry, aliased \"path\" and \"geom\" " +"respectively. The \"path\" field holds the polygon ring index containing a " +"single integer: 0 for the shell, >0 for holes. The \"geom\" field contains " +"the corresponding ring as a polygon." +msgstr "" + +#. Tag: para +#: reference_processing.xml:950 +#, no-c-format +msgid "Availability: PostGIS 1.1.3. Requires PostgreSQL 7.3 or higher." +msgstr "" + +#. Tag: para +#: reference_processing.xml:951 +#, no-c-format +msgid "" +"This only works for POLYGON geometries. It will not work for MULTIPOLYGONS" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:959 +#, no-c-format +msgid "" +"SELECT sometable.field1, sometable.field1,\n" +" (ST_DumpRings(sometable.the_geom)).geom As the_geom\n" +"FROM sometableOfpolys;\n" +"\n" +"SELECT ST_AsEWKT(geom) As the_geom, path\n" +" FROM ST_DumpRings(\n" +" ST_GeomFromEWKT('POLYGON((-8149064 5133092 1,-8149064 " +"5132986 1,-8148996 5132839 1,-8148972 5132767 1,-8148958 5132508 1,-8148941 " +"5132466 1,-8148924 5132394 1,\n" +" -8148903 5132210 1,-8148930 5131967 1,-8148992 5131978 " +"1,-8149237 5132093 1,-8149404 5132211 1,-8149647 5132310 1,-8149757 5132394 " +"1,\n" +" -8150305 5132788 1,-8149064 5133092 1),\n" +" (-8149362 5132394 1,-8149446 5132501 1,-8149548 5132597 " +"1,-8149695 5132675 1,-8149362 5132394 1))')\n" +" ) as foo;\n" +" path | the_geom\n" +"----------------------------------------------------------------------------------------------------------------\n" +" {0} | POLYGON((-8149064 5133092 1,-8149064 5132986 1,-8148996 5132839 " +"1,-8148972 5132767 1,-8148958 5132508 1,\n" +" | -8148941 5132466 1,-8148924 5132394 1,\n" +" | -8148903 5132210 1,-8148930 5131967 1,\n" +" | -8148992 5131978 1,-8149237 5132093 1,\n" +" | -8149404 5132211 1,-8149647 5132310 1,-8149757 5132394 " +"1,-8150305 5132788 1,-8149064 5133092 1))\n" +" {1} | POLYGON((-8149362 5132394 1,-8149446 5132501 1,\n" +" | -8149548 5132597 1,-8149695 5132675 1,-8149362 5132394 " +"1))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:966 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:972 +#, no-c-format +msgid "ST_FlipCoordinates" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:973 +#, no-c-format +msgid "" +"Returns a version of the given geometry with X and Y axis flipped. Useful " +"for people who have built latitude/longitude features and need to fix them." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:981 +#, no-c-format +msgid "" +"geometry ST_FlipCoordinates " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_processing.xml:990 +#, no-c-format +msgid "Returns a version of the given geometry with X and Y axis flipped." +msgstr "" + +#. Tag: para +#: reference_processing.xml:993 +#, no-c-format +msgid "&M_support;" +msgstr "" + +#. Tag: title +#: reference_processing.xml:1000 +#, no-c-format +msgid "Example" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1001 +#, no-c-format +msgid "" +"" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1008 +#, no-c-format +msgid "ST_Intersection" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1010 +#, no-c-format +msgid "" +"(T) Returns a geometry that represents the shared portion of geomA and " +"geomB. The geography implementation does a transform to geometry to do the " +"intersection and then transform back to WGS84." +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:1015 +#, no-c-format +msgid "" +" geometry ST_Intersection geometry geomA geometry geomB geography " +"ST_Intersection geography geogA geography geogB " +msgstr "" + +#. Tag: para +#: reference_processing.xml:1042 +#, no-c-format +msgid "" +"Returns a geometry that represents the point set intersection of the " +"Geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1045 +#, no-c-format +msgid "" +"In other words - that portion of geometry A and geometry B that is shared " +"between the two geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1048 +#, no-c-format +msgid "" +"If the geometries do not share any space (are disjoint), then an empty " +"geometry collection is returned." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1050 +#, no-c-format +msgid "" +"ST_Intersection in conjunction with ST_Intersects is very useful for " +"clipping geometries such as in bounding box, buffer, region queries where " +"you only want to return that portion of a geometry that sits in a country or " +"region of interest." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1053 +#, no-c-format +msgid "" +"Geography: For geography this is really a thin wrapper around the geometry " +"implementation. It first determines the best SRID that fits the bounding box " +"of the 2 geography objects (if geography objects are within one half zone " +"UTM but not same UTM will pick one of those) (favoring UTM or Lambert " +"Azimuthal Equal Area (LAEA) north/south pole, and falling back on mercator " +"in worst case scenario) and then intersection in that best fit planar " +"spatial ref and retransforms back to WGS84 geography." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1056 +#, no-c-format +msgid "Do not call with a GEOMETRYCOLLECTION as an argument" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1061 +#, no-c-format +msgid "Availability: 1.5 support for geography data type was introduced." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1064 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.18" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1068 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Intersection('POINT(0 0)'::geometry, 'LINESTRING ( 2 0, " +"0 2 )'::geometry));\n" +" st_astext\n" +"---------------\n" +"GEOMETRYCOLLECTION EMPTY\n" +"(1 row)\n" +"SELECT ST_AsText(ST_Intersection('POINT(0 0)'::geometry, 'LINESTRING ( 0 0, " +"0 2 )'::geometry));\n" +" st_astext\n" +"---------------\n" +"POINT(0 0)\n" +"(1 row)\n" +"\n" +"---Clip all lines (trails) by country (here we assume country geom are " +"POLYGON or MULTIPOLYGONS)\n" +"-- NOTE: we are only keeping intersections that result in a LINESTRING or " +"MULTILINESTRING because we don't\n" +"-- care about trails that just share a point\n" +"-- the dump is needed to expand a geometry collection into individual single " +"MULT* parts\n" +"-- the below is fairly generic and will work for polys, etc. by just " +"changing the where clause\n" +"SELECT clipped.gid, clipped.f_name, clipped_geom\n" +"FROM (SELECT trails.gid, trails.f_name, (ST_Dump(ST_Intersection(country." +"the_geom, trails.the_geom))).geom As clipped_geom\n" +"FROM country\n" +" INNER JOIN trails\n" +" ON ST_Intersects(country.the_geom, trails.the_geom)) As clipped\n" +" WHERE ST_Dimension(clipped.clipped_geom) = 1 ;\n" +"\n" +"--For polys e.g. polygon landmarks, you can also use the sometimes faster " +"hack that buffering anything by 0.0\n" +"-- except a polygon results in an empty geometry collection\n" +"--(so a geometry collection containing polys, lines and points)\n" +"-- buffered by 0.0 would only leave the polygons and dissolve the collection " +"shell\n" +"SELECT poly.gid, ST_Multi(ST_Buffer(\n" +" ST_Intersection(country.the_geom, poly." +"the_geom),\n" +" 0.0)\n" +" ) As clipped_geom\n" +"FROM country\n" +" INNER JOIN poly\n" +" ON ST_Intersects(country.the_geom, poly.the_geom)\n" +" WHERE Not ST_IsEmpty(ST_Buffer(ST_Intersection(country.the_geom, " +"poly.the_geom),0.0));" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1072 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1078 +#, no-c-format +msgid "ST_LineToCurve" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1080 +#, no-c-format +msgid "Converts a LINESTRING/POLYGON to a CIRCULARSTRING, CURVED POLYGON" +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1085 +#, no-c-format +msgid "" +"geometry ST_LineToCurve " +"geometry geomANoncircular" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1095 +#, no-c-format +msgid "" +"Converts plain LINESTRING/POLYGONS to CIRCULAR STRINGs and Curved Polygons. " +"Note much fewer points are needed to describe the curved equivalent." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1106 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_LineToCurve(foo.the_geom)) As curvedastext,ST_AsText(foo." +"the_geom) As non_curvedastext\n" +" FROM (SELECT ST_Buffer('POINT(1 3)'::geometry, 3) As the_geom) As " +"foo;\n" +"\n" +"curvedatext " +"non_curvedastext\n" +"--------------------------------------------------------------------|-----------------------------------------------------------------\n" +"CURVEPOLYGON(CIRCULARSTRING(4 3,3.12132034355964 0.878679656440359, | POLYGON" +"((4 3,3.94235584120969 2.41472903395162,3.77163859753386 1.85194970290473,\n" +"1 0,-1.12132034355965 5.12132034355963,4 3)) | " +"3.49440883690764 1.33328930094119,3.12132034355964 0.878679656440359,\n" +" | " +"2.66671069905881 0.505591163092366,2.14805029709527 0.228361402466141,\n" +" | " +"1.58527096604839 0.0576441587903094,1 0,\n" +" | " +"0.414729033951621 0.0576441587903077,-0.148050297095264 0.228361402466137,\n" +" | " +"-0.666710699058802 0.505591163092361,-1.12132034355964 0.878679656440353,\n" +" | " +"-1.49440883690763 1.33328930094119,-1.77163859753386 1.85194970290472\n" +" | --" +"ETC-- ,3.94235584120969 3.58527096604839,4 3))\n" +"--3D example\n" +"SELECT ST_AsEWKT(ST_LineToCurve(ST_GeomFromEWKT('LINESTRING(1 2 3, 3 4 8, 5 " +"6 4, 7 8 4, 9 10 4)')));\n" +"\n" +" st_asewkt\n" +"------------------------------------\n" +" CIRCULARSTRING(1 2 3,5 6 4,9 10 4)" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1119 +#, no-c-format +msgid "ST_MakeValid" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1120 +#, no-c-format +msgid "Attempts to make an invalid geometry valid w/out loosing vertices." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1125 +#, no-c-format +msgid "" +"geometry ST_MakeValid " +"geometry input" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1134 +#, no-c-format +msgid "" +"The function attempts to create a valid representation of a given invalid " +"geometry without loosing any of the input vertices. Already-valid geometries " +"are returned w/out further intervention." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1140 +#, no-c-format +msgid "" +"Supported inputs are: POINTS, MULTIPOINTS, LINESTRINGS, MULTILINESTRINGS, " +"POLYGONS, MULTIPOLYGONS and GEOMETRYCOLLECTIONS containing any mix of them." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1146 +#, no-c-format +msgid "" +"In case of full or partial dimensional collapses, the output geometry may be " +"a collection of lower-to-equal dimension geometries or a geometry of lower " +"dimension." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1152 +#, no-c-format +msgid "" +"Single polygons may become multi-geometries in case of self-intersections." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1156 +#, no-c-format +msgid "Availability: 2.0.0, requires GEOS-3.3.0" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1157 +#, no-c-format +msgid "Enahnced: 2.0.1, speed improvements requires GEOS-3.3.4" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1158 +#, no-c-format +msgid "Enhanced: 2.1.0 added support for GEOMETRYCOLLECTION and MULTIPOINT." +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1175 +#, no-c-format +msgid "ST_MemUnion" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1177 +#, no-c-format +msgid "" +"Same as ST_Union, only memory-friendly (uses less memory and more processor " +"time)." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1183 +#, no-c-format +msgid "" +"geometry ST_MemUnion " +"geometry set geomfield" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1194 +#, no-c-format +msgid "Some useful description here." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1198 +#, no-c-format +msgid "" +"Same as ST_Union, only memory-friendly (uses less memory and more processor " +"time). This aggregate function works by unioning the geometries one at a " +"time to previous result as opposed to ST_Union aggregate which first creates " +"an array and then unions" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1210 +#, no-c-format +msgid "See ST_Union" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1223 +#, no-c-format +msgid "ST_MinimumBoundingCircle" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1224 +#, no-c-format +msgid "" +"Returns the smallest circle polygon that can fully contain a geometry. " +"Default uses 48 segments per quarter circle." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1230 +#, no-c-format +msgid "" +"geometry ST_MinimumBoundingCircle " +"geometry geomA " +"integer " +"num_segs_per_qt_circ=48" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1240 +#, no-c-format +msgid "Returns the smallest circle polygon that can fully contain a geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1241 +#, no-c-format +msgid "" +"The circle is approximated by a polygon with a default of 48 segments per " +"quarter circle. This number can be increased with little performance penalty " +"to obtain a more accurate result." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1243 +#, no-c-format +msgid "" +"It is often used with MULTI and Geometry Collections. Although it is not an " +"aggregate - you can use it in conjunction with ST_Collect to get the minimum " +"bounding circle of a set of geometries. ST_MinimumBoundingCircle(ST_Collect" +"(somepointfield))." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1248 +#, no-c-format +msgid "" +"The ratio of the area of a polygon divided by the area of its Minimum " +"Bounding Circle is often referred to as the Roeck test." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1250 +#, no-c-format +msgid "Availability: 1.4.0 - requires GEOS" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1257 +#, no-c-format +msgid "" +"SELECT d.disease_type,\n" +" ST_MinimumBoundingCircle(ST_Collect(d.the_geom)) As the_geom\n" +" FROM disease_obs As d\n" +" GROUP BY d.disease_type;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1263 +#, no-c-format +msgid "" +"Minimum bounding circle of a point and linestring. Using 8 segs to " +"approximate a quarter circle" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1266 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_MinimumBoundingCircle(\n" +" ST_Collect(\n" +" ST_GeomFromEWKT('LINESTRING(55 75,125 150)'),\n" +" ST_Point(20, 80)), 8\n" +" )) As wktmbc;\n" +"wktmbc\n" +"-----------\n" +"POLYGON((135.59714732062 115,134.384753327498 " +"102.690357210921,130.79416296937 90.8537670908995,124.963360620072 " +"79.9451031602111,117.116420743937 70.3835792560632,107.554896839789 " +"62.5366393799277,96.6462329091006 56.70583703063,84.8096427890789 " +"53.115246672502,72.5000000000001 51.9028526793802,60.1903572109213 " +"53.1152466725019,48.3537670908996 56.7058370306299,37.4451031602112 " +"62.5366393799276,27.8835792560632 70.383579256063,20.0366393799278 " +"79.9451031602109,14.20583703063 90.8537670908993,10.615246672502 " +"102.690357210921,9.40285267938019 115,10.6152466725019 " +"127.309642789079,14.2058370306299 139.1462329091,20.0366393799275 " +"150.054896839789,27.883579256063 159.616420743937,\n" +"37.4451031602108 167.463360620072,48.3537670908992 " +"173.29416296937,60.190357210921 176.884753327498,\n" +"72.4999999999998 178.09714732062,84.8096427890786 " +"176.884753327498,96.6462329091003 173.29416296937,107.554896839789 " +"167.463360620072,\n" +"117.116420743937 159.616420743937,124.963360620072 " +"150.054896839789,130.79416296937 139.146232909101,134.384753327498 " +"127.309642789079,135.59714732062 115))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1270 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1276 +#, no-c-format +msgid "ST_Polygonize" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1278 +#, no-c-format +msgid "" +"Aggregate. Creates a GeometryCollection containing possible polygons formed " +"from the constituent linework of a set of geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:1284 +#, no-c-format +msgid "" +" geometry ST_Polygonize geometry set geomfield geometry " +"ST_Polygonize geometry[] geom_array " +msgstr "" + +#. Tag: para +#: reference_processing.xml:1300 +#, no-c-format +msgid "" +"Creates a GeometryCollection containing possible polygons formed from the " +"constituent linework of a set of geometries." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1305 +#, no-c-format +msgid "" +"Geometry Collections are often difficult to deal with with third party " +"tools, so use ST_Polygonize in conjunction with " +"to dump the polygons out into individual polygons." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1313 +#, no-c-format +msgid "Availability: 1.0.0RC1 - requires GEOS >= 2.1.0." +msgstr "" + +#. Tag: title +#: reference_processing.xml:1317 +#, no-c-format +msgid "Examples: Polygonizing single linestrings" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1318 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(ST_Polygonize(the_geom_4269)) As geomtextrep\n" +"FROM (SELECT the_geom_4269 FROM ma.suffolk_edges ORDER BY tlid LIMIT 45) As " +"foo;\n" +"\n" +"geomtextrep\n" +"-------------------------------------\n" +" SRID=4269;GEOMETRYCOLLECTION(POLYGON((-71.040878 42.285678,-71.040943 " +"42.2856,-71.04096 42.285752,-71.040878 42.285678)),\n" +" POLYGON((-71.17166 42.353675,-71.172026 42.354044,-71.17239 " +"42.354358,-71.171794 42.354971,-71.170511 42.354855,\n" +" -71.17112 42.354238,-71.17166 42.353675)))\n" +"(1 row)\n" +"\n" +"--Use ST_Dump to dump out the polygonize geoms into individual polygons\n" +"SELECT ST_AsEWKT((ST_Dump(foofoo.polycoll)).geom) As geomtextrep\n" +"FROM (SELECT ST_Polygonize(the_geom_4269) As polycoll\n" +" FROM (SELECT the_geom_4269 FROM ma.suffolk_edges\n" +" ORDER BY tlid LIMIT 45) As foo) As foofoo;\n" +"\n" +"geomtextrep\n" +"------------------------\n" +" SRID=4269;POLYGON((-71.040878 42.285678,-71.040943 42.2856,-71.04096 " +"42.285752,\n" +"-71.040878 42.285678))\n" +" SRID=4269;POLYGON((-71.17166 42.353675,-71.172026 42.354044,-71.17239 " +"42.354358\n" +",-71.171794 42.354971,-71.170511 42.354855,-71.17112 42.354238,-71.17166 " +"42.353675))\n" +"(2 rows)" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1332 +#, no-c-format +msgid "ST_Node" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1334 +#, no-c-format +msgid "Node a set of linestrings." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1341 +#, no-c-format +msgid "" +"geometry ST_Node " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1352 +#, no-c-format +msgid "" +"Fully node a set of linestrings using the least possible number of nodes " +"while preserving all of the input ones." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1359 reference_processing.xml:2103 +#, no-c-format +msgid "Availability: 2.0.0 - requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1361 +#, no-c-format +msgid "" +"Due to a bug in GEOS up to 3.3.1 this function fails to node self-" +"intersecting lines. This is fixed with GEOS 3.3.2 or higher." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1368 +#, no-c-format +msgid "" +"SELECT ST_AsEWKT(\n" +" ST_Node('LINESTRINGZ(0 0 0, 10 10 10, 0 10 5, 10 0 3)'::" +"geometry)\n" +" ) As output;\n" +"output\n" +"-----------\n" +"MULTILINESTRING((0 0 0,5 5 4.5),(5 5 4.5,10 10 10,0 10 5,5 5 4.5),(5 5 " +"4.5,10 0 3))" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1383 +#, no-c-format +msgid "ST_OffsetCurve" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1385 +#, no-c-format +msgid "" +"Return an offset line at a given distance and side from an input line. " +"Useful for computing parallel lines about a center line" +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1393 +#, no-c-format +msgid "" +"geometry ST_OffsetCurve " +"geometry line " +"float signed_distance text " +"style_parameters=''" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1406 +#, no-c-format +msgid "" +"Return an offset line at a given distance and side from an input line. All " +"points of the returned geometries are not further than the given distance " +"from the input geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1412 +#, no-c-format +msgid "" +"For positive distance the offset will be at the left side of the input line " +"and retain the same direction. For a negative distance it'll be at the right " +"side and in the opposite direction." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1418 +#, no-c-format +msgid "" +"Availability: 2.0 - requires GEOS >= 3.2, improved with GEOS >= 3.3" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1422 +#, no-c-format +msgid "" +"The optional third parameter allows specifying a list of blank-separated " +"key=value pairs to tweak operations as follows:" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1430 +#, no-c-format +msgid "" +"'join=round|mitre|bevel' : join style (defaults to \"round\"). 'miter' is " +"also accepted as a synonym for 'mitre'." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1433 +#, no-c-format +msgid "" +"'mitre_limit=#.#' : mitre ratio limit (only affects mitred join style). " +"'miter_limit' is also accepted as a synonym for 'mitre_limit'." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1438 +#, no-c-format +msgid "" +"Units of distance are measured in units of the spatial reference system." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1442 +#, no-c-format +msgid "The inputs can only be LINESTRINGS." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1446 +#, no-c-format +msgid "" +"This function ignores the third dimension (z) and will always give a 2-d " +"result even when presented with a 3d-geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1454 +#, no-c-format +msgid "Compute an open buffer around roads" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1455 +#, no-c-format +msgid "" +"SELECT ST_Union(\n" +" ST_OffsetCurve(f.the_geom, f.width/2, 'quad_segs=4 join=round'),\n" +" ST_OffsetCurve(f.the_geom, -f.width/2, 'quad_segs=4 join=round')\n" +") as track\n" +"FROM someroadstable;" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1465 +#, no-c-format +msgid "15, 'quad_segs=4 join=round' original line and its offset 15 units." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1469 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_OffsetCurve(ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)'),\n" +" 15, 'quad_segs=4 join=round'));\n" +"--output --\n" +"LINESTRING(164 1,18 1,12.2597485145237 2.1418070123307,\n" +" 7.39339828220179 5.39339828220179,\n" +" 5.39339828220179 7.39339828220179,\n" +" 2.14180701233067 12.2597485145237,1 18,1 195)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1476 +#, no-c-format +msgid "-15, 'quad_segs=4 join=round' original line and its offset -15 units" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1480 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_OffsetCurve(geom,\n" +" -15, 'quad_segs=4 join=round')) As notsocurvy\n" +" FROM ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)') As geom;\n" +"-- notsocurvy --\n" +"LINESTRING(31 195,31 31,164 31)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1489 +#, no-c-format +msgid "" +"double-offset to get more curvy, note the first reverses direction, so -30 + " +"15 = -15" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1492 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_OffsetCurve(ST_OffsetCurve(geom,\n" +" -30, 'quad_segs=4 join=round'), -15, 'quad_segs=4 join=round')) As " +"morecurvy\n" +" FROM ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)') As geom;\n" +"-- morecurvy --\n" +"LINESTRING(164 31,46 31,40.2597485145236 32.1418070123307,\n" +"35.3933982822018 35.3933982822018,\n" +"32.1418070123307 40.2597485145237,31 46,31 195)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1499 +#, no-c-format +msgid "" +"double-offset to get more curvy,combined with regular offset 15 to get " +"parallel lines. Overlaid with original." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1502 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Collect(\n" +" ST_OffsetCurve(geom, 15, 'quad_segs=4 join=round'), \n" +" ST_OffsetCurve(ST_OffsetCurve(geom,\n" +" -30, 'quad_segs=4 join=round'), -15, 'quad_segs=4 join=round')\n" +" )\n" +") As parallel_curves\n" +" FROM ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)') As geom;\n" +"-- parallel curves --\n" +"MULTILINESTRING((164 1,18 1,12.2597485145237 2.1418070123307,\n" +"7.39339828220179 5.39339828220179,5.39339828220179 7.39339828220179,\n" +"2.14180701233067 12.2597485145237,1 18,1 195),\n" +"(164 31,46 31,40.2597485145236 32.1418070123307,35.3933982822018 " +"35.3933982822018,\n" +"32.1418070123307 40.2597485145237,31 46,31 195))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1511 +#, no-c-format +msgid "15, 'quad_segs=4 join=bevel' shown with original line" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1514 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_OffsetCurve(ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)'), \n" +" 15, 'quad_segs=4 join=bevel'));\n" +"-- output --\n" +"LINESTRING(164 1,18 1,7.39339828220179 5.39339828220179,\n" +" 5.39339828220179 7.39339828220179,1 18,1 195)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1522 +#, no-c-format +msgid "15,-15 collected, join=mitre mitre_limit=2.1" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1525 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Collect(\n" +" ST_OffsetCurve(geom, 15, 'quad_segs=4 join=mitre mitre_limit=2.2'),\n" +" ST_OffsetCurve(geom, -15, 'quad_segs=4 join=mitre mitre_limit=2.2')\n" +" ) )\n" +" FROM ST_GeomFromText(\n" +"'LINESTRING(164 16,144 16,124 16,104 16,84 16,64 16,\n" +" 44 16,24 16,20 16,18 16,17 17,\n" +" 16 18,16 20,16 40,16 60,16 80,16 100,\n" +" 16 120,16 140,16 160,16 180,16 195)') As geom;\n" +"-- output --\n" +"MULTILINESTRING((164 1,11.7867965644036 1,1 11.7867965644036,1 195),\n" +" (31 195,31 31,164 31))" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1542 +#, no-c-format +msgid "ST_RemoveRepeatedPoints" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1543 +#, no-c-format +msgid "Returns a version of the given geometry with duplicated points removed." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1549 +#, no-c-format +msgid "" +"geometry ST_RemoveRepeatedPoints " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1558 +#, no-c-format +msgid "" +"Returns a version of the given geometry with duplicated points removed. Will " +"actually do something only with (multi)lines, (multi)polygons and " +"multipoints but you can safely call it with any kind of geometry. Since " +"simplification occurs on a object-by-object basis you can also feed a " +"GeometryCollection to this function." +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1578 +#, no-c-format +msgid "ST_SharedPaths" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1579 +#, no-c-format +msgid "" +"Returns a collection containing paths shared by the two input linestrings/" +"multilinestrings." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1584 +#, no-c-format +msgid "" +"geometry ST_SharedPaths " +"geometry lineal1 " +"geometry lineal2" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1594 +#, no-c-format +msgid "" +"Returns a collection containing paths shared by the two input geometries. " +"Those going in the same direction are in the first element of the " +"collection, those going in the opposite direction are in the second element. " +"The paths themselves are given in the direction of the first geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1599 +#, no-c-format +msgid "Availability: 2.0.0 requires GEOS >= 3.3.0." +msgstr "" + +#. Tag: title +#: reference_processing.xml:1602 +#, no-c-format +msgid "Examples: Finding shared paths" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1612 +#, no-c-format +msgid "A multilinestring and a linestring" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1623 +#, no-c-format +msgid "" +"The shared path of multilinestring and linestring overlaid with original " +"geometries." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1626 +#, no-c-format +msgid "" +"SELECT ST_AsText(\n" +" ST_SharedPaths(\n" +" ST_GeomFromText('MULTILINESTRING((26 125,26 200,126 200,126 125,26 " +"125),\n" +" (51 150,101 150,76 175,51 150))'),\n" +" ST_GeomFromText('LINESTRING(151 100,126 156.25,126 125,90 161, 76 " +"175)')\n" +" )\n" +" ) As wkt\n" +"\n" +" wkt\n" +"-------------------------------------------------------------\n" +"GEOMETRYCOLLECTION(MULTILINESTRING((126 156.25,126 125),\n" +" (101 150,90 161),(90 161,76 175)),MULTILINESTRING EMPTY)" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1632 +#, no-c-format +msgid "" +"-- same example but linestring orientation flipped\n" +"SELECT ST_AsText(\n" +" ST_SharedPaths(\n" +" ST_GeomFromText('LINESTRING(76 175,90 161,126 125,126 156.25,151 100)'),\n" +" ST_GeomFromText('MULTILINESTRING((26 125,26 200,126 200,126 125,26 125),\n" +" (51 150,101 150,76 175,51 150))')\n" +" )\n" +" ) As wkt\n" +"\n" +" wkt\n" +"-------------------------------------------------------------\n" +"GEOMETRYCOLLECTION(MULTILINESTRING EMPTY,\n" +"MULTILINESTRING((76 175,90 161),(90 161,101 150),(126 125,126 156.25)))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1642 +#, no-c-format +msgid "" +", , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1652 +#, no-c-format +msgid "ST_Shift_Longitude" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1654 +#, no-c-format +msgid "" +"Reads every point/vertex in every component of every feature in " +"a geometry, and if the longitude coordinate is <0, adds 360 to it. The " +"result would be a 0-360 version of the data to be plotted in a 180 centric " +"map" +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1662 +#, no-c-format +msgid "" +"geometry ST_Shift_Longitude " +"geometry geomA" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1672 +#, no-c-format +msgid "" +"Reads every point/vertex in every component of every feature in a " +"geometry, and if the longitude coordinate is <0, adds 360 to it. The " +"result would be a 0-360 version of the data to be plotted in a 180 centric " +"map" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1676 +#, no-c-format +msgid "This is only useful for data in long lat e.g. 4326 (WGS 84 long lat)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1678 +#, no-c-format +msgid "" +"Pre-1.3.4 bug prevented this from working for MULTIPOINT. 1.3.4+ works with " +"MULTIPOINT as well." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1683 +#, no-c-format +msgid "Enhanced: 2.0.0 support for Polyhedral surfaces and TIN was introduced." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1692 +#, no-c-format +msgid "" +"--3d points\n" +"SELECT ST_AsEWKT(ST_Shift_Longitude(ST_GeomFromEWKT('SRID=4326;POINT(-118.58 " +"38.38 10)'))) As geomA,\n" +" ST_AsEWKT(ST_Shift_Longitude(ST_GeomFromEWKT('SRID=4326;POINT(241.42 " +"38.38 10)'))) As geomb\n" +"geomA geomB\n" +"---------- -----------\n" +"SRID=4326;POINT(241.42 38.38 10) SRID=4326;POINT(-118.58 38.38 10)\n" +"\n" +"--regular line string\n" +"SELECT ST_AsText(ST_Shift_Longitude(ST_GeomFromText('LINESTRING(-118.58 " +"38.38, -118.20 38.45)')))\n" +"\n" +"st_astext\n" +"----------\n" +"LINESTRING(241.42 38.38,241.8 38.45)" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1698 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1704 +#, no-c-format +msgid "ST_Simplify" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1705 +#, no-c-format +msgid "" +"Returns a \"simplified\" version of the given geometry using the Douglas-" +"Peucker algorithm." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1711 +#, no-c-format +msgid "" +"geometry ST_Simplify " +"geometry geomA " +"float tolerance" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1721 +#, no-c-format +msgid "" +"Returns a \"simplified\" version of the given geometry using the Douglas-" +"Peucker algorithm. Will actually do something only with (multi)lines and " +"(multi)polygons but you can safely call it with any kind of geometry. Since " +"simplification occurs on a object-by-object basis you can also feed a " +"GeometryCollection to this function." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1728 +#, no-c-format +msgid "" +"Note that returned geometry might loose its simplicity (see )" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1730 +#, no-c-format +msgid "" +"Note topology may not be preserved and may result in invalid geometries. Use " +"(see ) to preserve topology." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1733 +#, no-c-format +msgid "Availability: 1.2.2" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1738 +#, no-c-format +msgid "A circle simplified too much becomes a triangle, medium an octagon," +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1739 +#, no-c-format +msgid "" +"SELECT ST_Npoints(the_geom) As np_before, ST_NPoints(ST_Simplify" +"(the_geom,0.1)) As np01_notbadcircle, ST_NPoints(ST_Simplify(the_geom,0.5)) " +"As np05_notquitecircle,\n" +"ST_NPoints(ST_Simplify(the_geom,1)) As np1_octagon, ST_NPoints(ST_Simplify" +"(the_geom,10)) As np10_triangle,\n" +"(ST_Simplify(the_geom,100) is null) As np100_geometrygoesaway\n" +"FROM (SELECT ST_Buffer('POINT(1 3)', 10,12) As the_geom) As foo;\n" +"-result\n" +" np_before | np01_notbadcircle | np05_notquitecircle | np1_octagon | " +"np10_triangle | np100_geometrygoesaway\n" +"-----------+-------------------+---------------------+-------------" +"+---------------+------------------------\n" +" 49 | 33 | 17 | 9 " +"| 4 | t" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1743 +#, no-c-format +msgid ", " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1749 +#, no-c-format +msgid "ST_SimplifyPreserveTopology" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1750 +#, no-c-format +msgid "" +"Returns a \"simplified\" version of the given geometry using the Douglas-" +"Peucker algorithm. Will avoid creating derived geometries (polygons in " +"particular) that are invalid." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1757 +#, no-c-format +msgid "" +"geometry ST_SimplifyPreserveTopology " +"geometry geomA " +"float tolerance" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1767 +#, no-c-format +msgid "" +"Returns a \"simplified\" version of the given geometry using the Douglas-" +"Peucker algorithm. Will avoid creating derived geometries (polygons in " +"particular) that are invalid. Will actually do something only with (multi)" +"lines and (multi)polygons but you can safely call it with any kind of " +"geometry. Since simplification occurs on a object-by-object basis you can " +"also feed a GeometryCollection to this function." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1776 +#, no-c-format +msgid "Requires GEOS 3.0.0+" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1777 +#, no-c-format +msgid "Availability: 1.3.3" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1782 +#, no-c-format +msgid "" +"Same example as Simplify, but we see Preserve Topology prevents " +"oversimplification. The circle can at most become a square." +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1783 +#, no-c-format +msgid "" +"SELECT ST_Npoints(the_geom) As np_before, ST_NPoints" +"(ST_SimplifyPreserveTopology(the_geom,0.1)) As np01_notbadcircle, ST_NPoints" +"(ST_SimplifyPreserveTopology(the_geom,0.5)) As np05_notquitecircle,\n" +"ST_NPoints(ST_SimplifyPreserveTopology(the_geom,1)) As np1_octagon, " +"ST_NPoints(ST_SimplifyPreserveTopology(the_geom,10)) As np10_square,\n" +"ST_NPoints(ST_SimplifyPreserveTopology(the_geom,100)) As np100_stillsquare\n" +"FROM (SELECT ST_Buffer('POINT(1 3)', 10,12) As the_geom) As foo;\n" +"\n" +"--result--\n" +" np_before | np01_notbadcircle | np05_notquitecircle | np1_octagon | " +"np10_square | np100_stillsquare\n" +"-----------+-------------------+---------------------+-------------" +"+---------------+-------------------\n" +" 49 | 33 | 17 | 9 " +"| 5 | 5" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1793 +#, no-c-format +msgid "ST_Split" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1794 +#, no-c-format +msgid "Returns a collection of geometries resulting by splitting a geometry." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1799 +#, no-c-format +msgid "" +"geometry ST_Split " +"geometry input " +"geometry blade" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1809 +#, no-c-format +msgid "" +"The function supports splitting a line by point, a line by line, a polygon " +"by line. The returned geometry is always a collection." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1813 +#, no-c-format +msgid "" +"Think of this function as the opposite of ST_Union. Theoretically applying " +"ST_Union to the elements of the returned collection should always yield the " +"original geometry." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1824 +#, no-c-format +msgid "Polygon Cut by Line" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1836 reference_processing.xml:1870 +#, no-c-format +msgid "Before Split" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1848 reference_processing.xml:1882 +#, no-c-format +msgid "After split" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1857 +#, no-c-format +msgid "" +"-- this creates a geometry collection consisting of the 2 halves of the " +"polygon\n" +"-- this is similar to the example we demonstrated in ST_BuildArea\n" +"SELECT ST_Split(circle, line)\n" +"FROM (SELECT \n" +" ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190)) As line,\n" +" ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo;\n" +" \n" +"-- result --\n" +" GEOMETRYCOLLECTION(POLYGON((150 90,149.039264020162 " +"80.2454838991936,146.193976625564 70.8658283817455,..), POLYGON(..)))\n" +" \n" +"-- To convert to individual polygons, you can use ST_Dump or ST_GeometryN\n" +"SELECT ST_AsText((ST_Dump(ST_Split(circle, line))).geom) As wkt\n" +"FROM (SELECT \n" +" ST_MakeLine(ST_MakePoint(10, 10),ST_MakePoint(190, 190)) As line,\n" +" ST_Buffer(ST_GeomFromText('POINT(100 90)'), 50) As circle) As foo;\n" +" \n" +"-- result --\n" +"wkt\n" +"---------------\n" +"POLYGON((150 90,149.039264020162 80.2454838991936,..))\n" +"POLYGON((60.1371179574584 60.1371179574584,58.4265193848728 " +"62.2214883490198,53.8060233744357 ..))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1858 +#, no-c-format +msgid "Multilinestring Cut by point" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1891 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Split(mline, pt)) As wktcut\n" +" FROM (SELECT \n" +" ST_GeomFromText('MULTILINESTRING((10 10, 190 190), (15 15, 30 30, 100 " +"90))') As mline,\n" +" ST_Point(30,30) As pt) As foo;\n" +" \n" +"wktcut\n" +"------\n" +"GEOMETRYCOLLECTION(\n" +" LINESTRING(10 10,30 30),\n" +" LINESTRING(30 30,190 190),\n" +" LINESTRING(15 15,30 30),\n" +" LINESTRING(30 30,100 90)\n" +")" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1895 +#, no-c-format +msgid "" +", , , , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1901 +#, no-c-format +msgid "ST_SymDifference" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1903 +#, no-c-format +msgid "" +"Returns a geometry that represents the portions of A and B that do not " +"intersect. It is called a symmetric difference because ST_SymDifference(A,B) " +"= ST_SymDifference(B,A)." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:1910 +#, no-c-format +msgid "" +"geometry ST_SymDifference " +"geometry geomA " +"geometry geomB" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1921 +#, no-c-format +msgid "" +"Returns a geometry that represents the portions of A and B that do not " +"intersect. It is called a symmetric difference because ST_SymDifference(A,B) " +"= ST_SymDifference(B,A). One can think of this as ST_Union(geomA,geomB) - " +"ST_Intersection(A,B)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:1931 +#, no-c-format +msgid "&sqlmm_compliant; SQL-MM 3: 5.1.21" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1951 +#, no-c-format +msgid "The original linestrings shown together" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1963 +#, no-c-format +msgid "The symmetric difference of the two linestrings" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1972 +#, no-c-format +msgid "" +"--Safe for 2d - symmetric difference of 2 linestrings\n" +"SELECT ST_AsText(\n" +" ST_SymDifference(\n" +" ST_GeomFromText('LINESTRING(50 100, 50 200)'),\n" +" ST_GeomFromText('LINESTRING(50 50, 50 150)')\n" +" )\n" +");\n" +"\n" +"st_astext\n" +"---------\n" +"MULTILINESTRING((50 150,50 200),(50 50,50 100))" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:1974 +#, no-c-format +msgid "" +"--When used in 3d doesn't quite do the right thing\n" +"SELECT ST_AsEWKT(ST_SymDifference(ST_GeomFromEWKT('LINESTRING(1 2 1, 1 4 " +"2)'),\n" +" ST_GeomFromEWKT('LINESTRING(1 1 3, 1 3 4)')))\n" +"\n" +"st_astext\n" +"------------\n" +"MULTILINESTRING((1 3 2.75,1 4 2),(1 1 3,1 2 2.25))" +msgstr "" + +#. Tag: para +#: reference_processing.xml:1981 +#, no-c-format +msgid ", , " +msgstr "" + +#. Tag: refname +#: reference_processing.xml:1988 +#, no-c-format +msgid "ST_Union" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:1989 +#, no-c-format +msgid "" +"Returns a geometry that represents the point set union of the Geometries." +msgstr "" + +#. Tag: funcsynopsis +#: reference_processing.xml:1994 +#, no-c-format +msgid "" +" geometry ST_Union " +"geometry set g1field geometry " +"ST_Union geometry " +"g1 geometry " +"g2 " +"geometry ST_Union " +"geometry[] g1_array " +"" +msgstr "" + +#. Tag: para +#: reference_processing.xml:2013 +#, no-c-format +msgid "" +"Output type can be a MULTI*, single geometry, or Geometry Collection. Comes " +"in 2 variants. Variant 1 unions 2 geometries resulting in a new geometry " +"with no intersecting regions. Variant 2 is an aggregate function that takes " +"a set of geometries and unions them into a single ST_Geometry resulting in " +"no intersecting regions." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2017 +#, no-c-format +msgid "" +"Aggregate version: This function returns a MULTI geometry or NON-MULTI " +"geometry from a set of geometries. The ST_Union() function is an \"aggregate" +"\" function in the terminology of PostgreSQL. That means that it operates on " +"rows of data, in the same way the SUM() and AVG() functions do." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2023 +#, no-c-format +msgid "" +"Non-Aggregate version: This function returns a geometry being a union of two " +"input geometries. Output type can be a MULTI*, NON-MULTI or " +"GEOMETRYCOLLECTION." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2027 +#, no-c-format +msgid "" +"ST_Collect and ST_Union are often interchangeable. ST_Union is in general " +"orders of magnitude slower than ST_Collect because it tries to dissolve " +"boundaries and reorder geometries to ensure that a constructed Multi* " +"doesn't have intersecting regions." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2033 +#, no-c-format +msgid "" +"NOTE: this function was formerly called GeomUnion(), which was renamed from " +"\"Union\" because UNION is an SQL reserved word." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2036 +#, no-c-format +msgid "" +"Availability: 1.4.0 - ST_Union was enhanced. ST_Union(geomarray) was " +"introduced and also faster aggregate collection in PostgreSQL. If you are " +"using GEOS 3.1.0+ ST_Union will use the faster Cascaded Union algorithm " +"described in http://blog.cleverelephant.ca/2009/01/must-" +"faster-unions-in-postgis-14.html" +msgstr "" + +#. Tag: para +#: reference_processing.xml:2042 +#, no-c-format +msgid "Aggregate version is not explicitly defined in OGC SPEC." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2043 +#, no-c-format +msgid "" +"&sqlmm_compliant; SQL-MM 3: 5.1.19 the z-index (elevation) when polygons are " +"involved." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2049 +#, no-c-format +msgid "Aggregate example" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:2050 +#, no-c-format +msgid "" +"SELECT stusps,\n" +" ST_Multi(ST_Union(f.the_geom)) as singlegeom\n" +" FROM sometable As f\n" +"GROUP BY stusps" +msgstr "" + +#. Tag: programlisting +#: reference_processing.xml:2052 +#, no-c-format +msgid "" +"SELECT ST_AsText(ST_Union(ST_GeomFromText('POINT(1 2)'),\n" +" ST_GeomFromText('POINT(-2 3)') ) )\n" +"\n" +"st_astext\n" +"----------\n" +"MULTIPOINT(-2 3,1 2)\n" +"\n" +"\n" +"SELECT ST_AsText(ST_Union(ST_GeomFromText('POINT(1 2)'),\n" +" ST_GeomFromText('POINT(1 2)') ) );\n" +"st_astext\n" +"----------\n" +"POINT(1 2)\n" +"\n" +"--3d example - sort of supports 3d (and with mixed dimensions!)\n" +"SELECT ST_AsEWKT(st_union(the_geom))\n" +"FROM\n" +"(SELECT ST_GeomFromEWKT('POLYGON((-7 4.2,-7.1 4.2,-7.1 4.3,\n" +"-7 4.2))') as the_geom\n" +"UNION ALL\n" +"SELECT ST_GeomFromEWKT('POINT(5 5 5)') as the_geom\n" +"UNION ALL\n" +" SELECT ST_GeomFromEWKT('POINT(-2 3 1)') as the_geom\n" +"UNION ALL\n" +"SELECT ST_GeomFromEWKT('LINESTRING(5 5 5, 10 10 10)') as the_geom ) as foo;\n" +"\n" +"st_asewkt\n" +"---------\n" +"GEOMETRYCOLLECTION(POINT(-2 3 1),LINESTRING(5 5 5,10 10 10),POLYGON((-7 4.2 " +"5,-7.1 4.2 5,-7.1 4.3 5,-7 4.2 5)));\n" +"\n" +"--3d example not mixing dimensions\n" +"SELECT ST_AsEWKT(st_union(the_geom))\n" +"FROM\n" +"(SELECT ST_GeomFromEWKT('POLYGON((-7 4.2 2,-7.1 4.2 3,-7.1 4.3 2,\n" +"-7 4.2 2))') as the_geom\n" +"UNION ALL\n" +"SELECT ST_GeomFromEWKT('POINT(5 5 5)') as the_geom\n" +"UNION ALL\n" +" SELECT ST_GeomFromEWKT('POINT(-2 3 1)') as the_geom\n" +"UNION ALL\n" +"SELECT ST_GeomFromEWKT('LINESTRING(5 5 5, 10 10 10)') as the_geom ) as foo;\n" +"\n" +"st_asewkt\n" +"---------\n" +"GEOMETRYCOLLECTION(POINT(-2 3 1),LINESTRING(5 5 5,10 10 10),POLYGON((-7 4.2 " +"2,-7.1 4.2 3,-7.1 4.3 2,-7 4.2 2)))\n" +"\n" +"--Examples using new Array construct\n" +"SELECT ST_Union(ARRAY(SELECT the_geom FROM sometable));\n" +"\n" +"SELECT ST_AsText(ST_Union(ARRAY[ST_GeomFromText('LINESTRING(1 2, 3 4)'),\n" +" ST_GeomFromText('LINESTRING(3 4, 4 5)')])) As " +"wktunion;\n" +"\n" +"--wktunion---\n" +"MULTILINESTRING((3 4,4 5),(1 2,3 4))" +msgstr "" + +#. Tag: refname +#: reference_processing.xml:2065 +#, no-c-format +msgid "ST_UnaryUnion" +msgstr "" + +#. Tag: refpurpose +#: reference_processing.xml:2067 +#, no-c-format +msgid "Like ST_Union, but working at the geometry component level." +msgstr "" + +#. Tag: funcprototype +#: reference_processing.xml:2072 +#, no-c-format +msgid "" +"geometry ST_UnaryUnion " +"geometry geom" +msgstr "" + +#. Tag: para +#: reference_processing.xml:2083 +#, no-c-format +msgid "" +"Unlike ST_Union, ST_UnaryUnion does dissolve boundaries between components " +"of a multipolygon (invalid) and does perform union between the components of " +"a geometrycollection. Each components of the input geometry is assumed to be " +"valid, so you won't get a valid multipolygon out of a bow-tie polygon " +"(invalid)." +msgstr "" + +#. Tag: para +#: reference_processing.xml:2093 +#, no-c-format +msgid "" +"You may use this function to node a set of linestrings. You may mix " +"ST_UnaryUnion with ST_Collect to fine-tune how many geometries at once you " +"want to dissolve to be nice on both memory size and CPU time, finding the " +"balance between ST_Union and ST_MemUnion." +msgstr "" diff --git a/doc/po/it_IT/reference_raster.xml.po b/doc/po/it_IT/reference_raster.xml.po new file mode 100644 index 000000000..cc2cc4a38 --- /dev/null +++ b/doc/po/it_IT/reference_raster.xml.po @@ -0,0 +1,12499 @@ +# SOME DESCRIPTIVE TITLE. +# FIRST AUTHOR , YEAR. +# +#, fuzzy +msgid "" +msgstr "" +"Project-Id-Version: PACKAGE VERSION\n" +"Report-Msgid-Bugs-To: http://bugs.kde.org\n" +"POT-Creation-Date: 2012-09-14 17:50+0000\n" +"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n" +"Last-Translator: FULL NAME \n" +"Language-Team: LANGUAGE \n" +"Language: \n" +"MIME-Version: 1.0\n" +"Content-Type: text/plain; charset=UTF-8\n" +"Content-Transfer-Encoding: 8bit\n" + +#. Tag: title +#: reference_raster.xml:3 +#, no-c-format +msgid "Raster Reference" +msgstr "" + +#. Tag: para +#: reference_raster.xml:5 +#, no-c-format +msgid "" +"The functions given below are the ones which a user of PostGIS Raster is " +"likely to need and which are currently available in PostGIS Raster. There " +"are other functions which are required support functions to the raster " +"objects which are not of use to a general user." +msgstr "" + +#. Tag: para +#: reference_raster.xml:9 +#, no-c-format +msgid "" +"raster is a new PostGIS type for storing and analyzing " +"raster data." +msgstr "" + +#. Tag: para +#: reference_raster.xml:10 +#, no-c-format +msgid "" +"For loading rasters from raster files please refer to " +msgstr "" + +#. Tag: para +#: reference_raster.xml:12 +#, no-c-format +msgid "" +"For the examples in this reference we will be using a raster table of dummy " +"rasters - Formed with the following code" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:13 +#, no-c-format +msgid "" +"CREATE TABLE dummy_rast(rid integer, rast raster);\n" +"INSERT INTO dummy_rast(rid, rast)\n" +"VALUES (1,\n" +"('01' -- little endian (uint8 ndr)\n" +"|| \n" +"'0000' -- version (uint16 0)\n" +"||\n" +"'0000' -- nBands (uint16 0)\n" +"||\n" +"'0000000000000040' -- scaleX (float64 2)\n" +"||\n" +"'0000000000000840' -- scaleY (float64 3)\n" +"||\n" +"'000000000000E03F' -- ipX (float64 0.5)\n" +"||\n" +"'000000000000E03F' -- ipY (float64 0.5)\n" +"||\n" +"'0000000000000000' -- skewX (float64 0)\n" +"||\n" +"'0000000000000000' -- skewY (float64 0)\n" +"||\n" +"'00000000' -- SRID (int32 0)\n" +"||\n" +"'0A00' -- width (uint16 10)\n" +"||\n" +"'1400' -- height (uint16 20)\n" +")::raster\n" +"),\n" +"-- Raster: 5 x 5 pixels, 3 bands, PT_8BUI pixel type, NODATA = 0\n" +"(2, ('01000003009A9999999999A93F9A9999999999A9BF000000E02B274A' ||\n" +"'41000000007719564100000000000000000000000000000000FFFFFFFF050005000400FDFEFDFEFEFDFEFEFDF9FAFEF' " +"||\n" +"'EFCF9FBFDFEFEFDFCFAFEFEFE04004E627AADD16076B4F9FE6370A9F5FE59637AB0E54F58617087040046566487A1506CA2E3FA5A6CAFFBFE4D566DA4CB3E454C5665')::" +"raster);" +msgstr "" + +#. Tag: para +#: reference_raster.xml:17 +#, no-c-format +msgid "" +"This section lists the PostgreSQL data types specifically created to support " +"raster functionality." +msgstr "" + +#. Tag: title +#: reference_raster.xml:20 +#, no-c-format +msgid "Raster Support Data types" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:24 +#, no-c-format +msgid "geomval" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:25 +#, no-c-format +msgid "" +"A spatial datatype with two fields - geom (holding a geometry object) and " +"val (holding a double precision pixel value from a raster band)." +msgstr "" + +#. Tag: title +#: reference_raster.xml:30 reference_raster.xml:49 reference_raster.xml:121 +#: reference_raster.xml:161 reference_raster.xml:340 reference_raster.xml:514 +#: reference_raster.xml:553 reference_raster.xml:590 reference_raster.xml:631 +#: reference_raster.xml:721 reference_raster.xml:922 reference_raster.xml:1009 +#: reference_raster.xml:1103 reference_raster.xml:1148 +#: reference_raster.xml:1187 reference_raster.xml:1221 +#: reference_raster.xml:1256 reference_raster.xml:1290 +#: reference_raster.xml:1335 reference_raster.xml:1389 +#: reference_raster.xml:1426 reference_raster.xml:1466 +#: reference_raster.xml:1518 reference_raster.xml:1570 +#: reference_raster.xml:1614 reference_raster.xml:1649 +#: reference_raster.xml:1685 reference_raster.xml:1721 +#: reference_raster.xml:1756 reference_raster.xml:1790 +#: reference_raster.xml:1824 reference_raster.xml:1868 +#: reference_raster.xml:1927 reference_raster.xml:1981 +#: reference_raster.xml:2016 reference_raster.xml:2054 +#: reference_raster.xml:2101 reference_raster.xml:2143 +#: reference_raster.xml:2197 reference_raster.xml:2232 +#: reference_raster.xml:2307 reference_raster.xml:2350 +#: reference_raster.xml:2394 reference_raster.xml:2444 +#: reference_raster.xml:2486 reference_raster.xml:2530 +#: reference_raster.xml:2572 reference_raster.xml:2637 +#: reference_raster.xml:2713 reference_raster.xml:2796 +#: reference_raster.xml:2883 reference_raster.xml:2960 +#: reference_raster.xml:3092 reference_raster.xml:3128 +#: reference_raster.xml:3167 reference_raster.xml:3210 +#: reference_raster.xml:3257 reference_raster.xml:3301 +#: reference_raster.xml:3339 reference_raster.xml:3414 +#: reference_raster.xml:3469 reference_raster.xml:3531 +#: reference_raster.xml:3609 reference_raster.xml:3674 +#: reference_raster.xml:3761 reference_raster.xml:3800 +#: reference_raster.xml:3870 reference_raster.xml:3976 +#: reference_raster.xml:4096 reference_raster.xml:4157 +#: reference_raster.xml:4312 reference_raster.xml:4354 +#: reference_raster.xml:4391 reference_raster.xml:4476 +#: reference_raster.xml:4567 reference_raster.xml:4655 +#: reference_raster.xml:4716 reference_raster.xml:4774 +#: reference_raster.xml:4905 reference_raster.xml:4967 +#: reference_raster.xml:5012 reference_raster.xml:5057 +#: reference_raster.xml:5096 reference_raster.xml:5161 +#: reference_raster.xml:5275 reference_raster.xml:5347 +#: reference_raster.xml:5443 reference_raster.xml:5680 +#: reference_raster.xml:5776 reference_raster.xml:5868 +#: reference_raster.xml:5980 reference_raster.xml:6030 +#: reference_raster.xml:6109 reference_raster.xml:6160 +#: reference_raster.xml:6210 reference_raster.xml:6260 +#: reference_raster.xml:6310 reference_raster.xml:6359 +#: reference_raster.xml:6409 reference_raster.xml:6459 +#: reference_raster.xml:6523 reference_raster.xml:6567 +#: reference_raster.xml:6612 reference_raster.xml:6679 +#: reference_raster.xml:6768 reference_raster.xml:6853 +#: reference_raster.xml:6934 reference_raster.xml:7015 +#: reference_raster.xml:7144 reference_raster.xml:7228 +#: reference_raster.xml:7308 reference_raster.xml:7427 +#: reference_raster.xml:7499 reference_raster.xml:7596 +#: reference_raster.xml:7689 +#, no-c-format +msgid "Description" +msgstr "" + +#. Tag: para +#: reference_raster.xml:31 +#, no-c-format +msgid "" +"geomval is a compound data type consisting of a geometry object referenced " +"by the .geom field and val, a double precision value that represents the " +"pixel value at a particular geometric location in a raster band. It is used " +"by the ST_DumpAsPolygon and Raster intersection family of functions as an " +"output type to explode a raster band into geometry polygons." +msgstr "" + +#. Tag: title +#: reference_raster.xml:37 reference_raster.xml:107 reference_raster.xml:150 +#: reference_raster.xml:195 reference_raster.xml:388 reference_raster.xml:529 +#: reference_raster.xml:565 reference_raster.xml:603 reference_raster.xml:651 +#: reference_raster.xml:757 reference_raster.xml:974 reference_raster.xml:1063 +#: reference_raster.xml:1123 reference_raster.xml:1166 +#: reference_raster.xml:1200 reference_raster.xml:1235 +#: reference_raster.xml:1269 reference_raster.xml:1313 +#: reference_raster.xml:1368 reference_raster.xml:1405 +#: reference_raster.xml:1443 reference_raster.xml:1485 +#: reference_raster.xml:1541 reference_raster.xml:1593 +#: reference_raster.xml:1628 reference_raster.xml:1664 +#: reference_raster.xml:1700 reference_raster.xml:1735 +#: reference_raster.xml:1769 reference_raster.xml:1803 +#: reference_raster.xml:1838 reference_raster.xml:1885 +#: reference_raster.xml:1941 reference_raster.xml:1995 +#: reference_raster.xml:2029 reference_raster.xml:2079 +#: reference_raster.xml:2114 reference_raster.xml:2172 +#: reference_raster.xml:2210 reference_raster.xml:2285 +#: reference_raster.xml:2322 reference_raster.xml:2362 +#: reference_raster.xml:2412 reference_raster.xml:2454 +#: reference_raster.xml:2498 reference_raster.xml:2540 +#: reference_raster.xml:2584 reference_raster.xml:2659 +#: reference_raster.xml:2738 reference_raster.xml:2827 +#: reference_raster.xml:2898 reference_raster.xml:3015 +#: reference_raster.xml:3145 reference_raster.xml:3180 +#: reference_raster.xml:3229 reference_raster.xml:3274 +#: reference_raster.xml:3314 reference_raster.xml:3352 +#: reference_raster.xml:3434 reference_raster.xml:3496 +#: reference_raster.xml:3559 reference_raster.xml:3638 +#: reference_raster.xml:3726 reference_raster.xml:3774 +#: reference_raster.xml:3823 reference_raster.xml:3884 +#: reference_raster.xml:4011 reference_raster.xml:4111 +#: reference_raster.xml:4185 reference_raster.xml:4330 +#: reference_raster.xml:4430 reference_raster.xml:4521 +#: reference_raster.xml:4612 reference_raster.xml:4692 +#: reference_raster.xml:4734 reference_raster.xml:4882 +#: reference_raster.xml:4944 reference_raster.xml:4991 +#: reference_raster.xml:5031 reference_raster.xml:5072 +#: reference_raster.xml:5137 reference_raster.xml:5202 +#: reference_raster.xml:5314 reference_raster.xml:5401 +#: reference_raster.xml:5606 reference_raster.xml:5738 +#: reference_raster.xml:5838 reference_raster.xml:5956 +#: reference_raster.xml:5991 reference_raster.xml:6065 +#: reference_raster.xml:6134 reference_raster.xml:6179 +#: reference_raster.xml:6229 reference_raster.xml:6279 +#: reference_raster.xml:6329 reference_raster.xml:6378 +#: reference_raster.xml:6428 reference_raster.xml:6478 +#: reference_raster.xml:6714 reference_raster.xml:6799 +#: reference_raster.xml:6880 reference_raster.xml:6961 +#: reference_raster.xml:7045 reference_raster.xml:7174 +#: reference_raster.xml:7255 reference_raster.xml:7335 +#: reference_raster.xml:7448 reference_raster.xml:7532 +#: reference_raster.xml:7627 reference_raster.xml:7720 +#, no-c-format +msgid "See Also" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:44 +#, no-c-format +msgid "addbandarg" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:45 +#, no-c-format +msgid "" +"A composite type used as input into the ST_AddBand function " +"defining the attributes and initial value of the new band." +msgstr "" + +#. Tag: para +#: reference_raster.xml:50 +#, no-c-format +msgid "" +"A composite type used as input into the ST_AddBand function defining " +"the attributes and initial value of the new band." +msgstr "" + +#. Tag: term +#: reference_raster.xml:55 +#, no-c-format +msgid "index integer" +msgstr "" + +#. Tag: para +#: reference_raster.xml:60 +#, no-c-format +msgid "" +"1-based value indicating the position where the new band will be added " +"amongst the raster's bands. If NULL, the new band will be added at the end " +"of the raster's bands." +msgstr "" + +#. Tag: term +#: reference_raster.xml:67 +#, no-c-format +msgid "pixeltype text" +msgstr "" + +#. Tag: para +#: reference_raster.xml:72 +#, no-c-format +msgid "" +"Pixel type of the new band. One of defined pixel types as described in ." +msgstr "" + +#. Tag: term +#: reference_raster.xml:79 +#, no-c-format +msgid "initialvalue double precision" +msgstr "" + +#. Tag: para +#: reference_raster.xml:84 +#, no-c-format +msgid "Initial value that all pixels of new band will be set to." +msgstr "" + +#. Tag: term +#: reference_raster.xml:91 +#, no-c-format +msgid "nodataval double precision" +msgstr "" + +#. Tag: para +#: reference_raster.xml:96 +#, no-c-format +msgid "" +"NODATA value of the new band. If NULL, the new band will not have a NODATA " +"value assigned." +msgstr "" + +#. Tag: refname +#: reference_raster.xml:116 +#, no-c-format +msgid "raster" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:117 +#, no-c-format +msgid "raster spatial data type." +msgstr "" + +#. Tag: para +#: reference_raster.xml:122 +#, no-c-format +msgid "" +"raster is a spatial data type used to represent raster data such as those " +"imported from jpegs, tiffs, pngs, digital elevation models. Each raster has " +"1 or more bands each having a set of pixel values. Rasters can be " +"georeferenced." +msgstr "" + +#. Tag: para +#: reference_raster.xml:125 +#, no-c-format +msgid "" +"Requires PostGIS be compiled with GDAL support. Currently rasters can be " +"implicitly converted to geometry type, but the conversion returns the of the raster. This auto casting may be " +"removed in the near future so don't rely on it." +msgstr "" + +#. Tag: title +#: reference_raster.xml:131 +#, no-c-format +msgid "Casting Behavior" +msgstr "" + +#. Tag: para +#: reference_raster.xml:132 +#, no-c-format +msgid "" +"This section lists the automatic as well as explicit casts allowed for this " +"data type" +msgstr "" + +#. Tag: entry +#: reference_raster.xml:137 +#, no-c-format +msgid "Cast To" +msgstr "" + +#. Tag: entry +#: reference_raster.xml:138 +#, no-c-format +msgid "Behavior" +msgstr "" + +#. Tag: entry +#: reference_raster.xml:141 +#, no-c-format +msgid "geometry" +msgstr "" + +#. Tag: entry +#: reference_raster.xml:142 +#, no-c-format +msgid "automatic" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:157 +#, no-c-format +msgid "reclassarg" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:158 +#, no-c-format +msgid "" +"A composite type used as input into the ST_Reclass function " +"defining the behavior of reclassification." +msgstr "" + +#. Tag: para +#: reference_raster.xml:162 +#, no-c-format +msgid "" +"A composite type used as input into the ST_Reclass function defining " +"the behavior of reclassification." +msgstr "" + +#. Tag: term +#: reference_raster.xml:165 +#, no-c-format +msgid "nband integer" +msgstr "" + +#. Tag: para +#: reference_raster.xml:166 +#, no-c-format +msgid "The band number of band to reclassify." +msgstr "" + +#. Tag: term +#: reference_raster.xml:169 +#, no-c-format +msgid "reclassexpr text" +msgstr "" + +#. Tag: para +#: reference_raster.xml:170 +#, no-c-format +msgid "" +"range expression consisting of comma delimited range:map_range mappings. : " +"to define mapping that defines how to map old band values to new band " +"values. ( means >, ) means less than, ] < or equal, [ means > or " +"equal" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:171 +#, no-c-format +msgid "" +"1. [a-b] = a <= x <= b\n" +"\n" +"2. (a-b] = a < x <= b\n" +"\n" +"3. [a-b) = a <= x < b\n" +"\n" +"4. (a-b) = a < x < b" +msgstr "" + +#. Tag: para +#: reference_raster.xml:172 +#, no-c-format +msgid "( notation is optional so a-b means the same as (a-b)" +msgstr "" + +#. Tag: term +#: reference_raster.xml:177 +#, no-c-format +msgid "pixeltype text" +msgstr "" + +#. Tag: para +#: reference_raster.xml:178 +#, no-c-format +msgid "" +"One of defined pixel types as described in " +msgstr "" + +#. Tag: term +#: reference_raster.xml:181 +#, no-c-format +msgid "nodataval double precision" +msgstr "" + +#. Tag: para +#: reference_raster.xml:182 +#, no-c-format +msgid "" +"Value to treat as no data. For image outputs that support transparency, " +"these will be blank." +msgstr "" + +#. Tag: title +#: reference_raster.xml:187 +#, no-c-format +msgid "Example: Reclassify band 2 as an 8BUI where 255 is nodata value" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:188 +#, no-c-format +msgid "" +"SELECT ROW(2, '0-100:1-10, 101-500:11-150,501 - 10000: 151-254', '8BUI', " +"255)::reclassarg;" +msgstr "" + +#. Tag: title +#: reference_raster.xml:191 +#, no-c-format +msgid "Example: Reclassify band 1 as an 1BB and no nodata value defined" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:192 +#, no-c-format +msgid "SELECT ROW(1, '0-100]:0, (100-255:1', '1BB', NULL)::reclassarg;" +msgstr "" + +#. Tag: title +#: reference_raster.xml:203 +#, no-c-format +msgid "Raster Management" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:206 +#, no-c-format +msgid "AddRasterConstraints" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:208 +#, no-c-format +msgid "" +"Adds raster constraints to a loaded raster table for a specific column that " +"constrains spatial ref, scaling, blocksize, alignment, bands, band type and " +"a flag to denote if raster column is regularly blocked. The table must be " +"loaded with data for the constraints to be inferred. Returns true of the " +"constraint setting was accomplished and if issues a notice." +msgstr "" + +#. Tag: funcsynopsis +#: reference_raster.xml:212 +#, no-c-format +msgid "" +" boolean AddRasterConstraints name rasttable name rastcolumn boolean srid boolean scale_x boolean scale_y boolean blocksize_x boolean " +"blocksize_y boolean same_alignment " +"boolean regular_blocking boolean " +"num_bands=true boolean pixel_types=true " +"boolean " +"nodata_values=true boolean out_db=true " +"boolean extent=true boolean " +"AddRasterConstraints name rasttable name rastcolumn text[] VARIADIC constraints boolean " +"AddRasterConstraints name rastschema name rasttable name rastcolumn text[] VARIADIC constraints boolean " +"AddRasterConstraints name rastschema name rasttable name rastcolumn boolean srid=true " +"boolean scale_x=true boolean " +"scale_y=true boolean blocksize_x=true " +"boolean blocksize_y=true boolean " +"same_alignment=true boolean regular_blocking=true boolean " +"num_bands=true boolean pixel_types=true " +"boolean " +"nodata_values=true boolean out_db=true " +"boolean extent=true " +msgstr "" + +#. Tag: para +#: reference_raster.xml:342 +#, no-c-format +msgid "" +"Generates constraints on a raster column that are used to display " +"information in the raster_columns raster catalog. The " +"rastschema is the name of the table schema the table " +"resides in. The srid must be an integer value reference " +"to an entry in the SPATIAL_REF_SYS table." +msgstr "" + +#. Tag: para +#: reference_raster.xml:347 +#, no-c-format +msgid "" +"raster2pgsql loader uses this function to register raster " +"tables" +msgstr "" + +#. Tag: para +#: reference_raster.xml:348 +#, no-c-format +msgid "" +"Valid constraint names to pass in: refer to for more details." +msgstr "" + +#. Tag: para +#: reference_raster.xml:350 +#, no-c-format +msgid "blocksize sets both X and Y blocksize" +msgstr "" + +#. Tag: para +#: reference_raster.xml:351 +#, no-c-format +msgid "" +"blocksize_x sets X tile (width in pixels of each tile)" +msgstr "" + +#. Tag: para +#: reference_raster.xml:352 +#, no-c-format +msgid "" +"blocksize_y sets Y tile (height in pixels of each tile)" +msgstr "" + +#. Tag: para +#: reference_raster.xml:353 +#, no-c-format +msgid "" +"extent computes extent of whole table and applys " +"constraint all rasters must be within that extent" +msgstr "" + +#. Tag: para +#: reference_raster.xml:355 +#, no-c-format +msgid "num_bands number of bands" +msgstr "" + +#. Tag: para +#: reference_raster.xml:356 +#, no-c-format +msgid "" +"pixel_types reads array of pixel types for each band " +"ensure all band n have same pixel type" +msgstr "" + +#. Tag: para +#: reference_raster.xml:357 +#, no-c-format +msgid "" +"regular_blocking apply informational flag to denote all " +"tiles are regularly blocked" +msgstr "" + +#. Tag: para +#: reference_raster.xml:358 +#, no-c-format +msgid "" +"same_alignment ensures they all have same alignment " +"meaning any two tiles you compare will return true for. Refer to" +msgstr "" + +#. Tag: para +#: reference_raster.xml:359 +#, no-c-format +msgid "srid ensures all have same srid" +msgstr "" + +#. Tag: para +#: reference_raster.xml:360 +#, no-c-format +msgid "More -- any listed as inputs into the above functions" +msgstr "" + +#. Tag: para +#: reference_raster.xml:363 +#, no-c-format +msgid "" +"This function infers the constraints from the data already present in the " +"table. As such for it to work, you must create the raster column first and " +"then load it with data." +msgstr "" + +#. Tag: para +#: reference_raster.xml:368 +#, no-c-format +msgid "" +"If you need to load more data in your tables after you have already applied " +"constraints, you may want to run the DropRasterConstraints if the extent of " +"your data has changed." +msgstr "" + +#. Tag: para +#: reference_raster.xml:372 reference_raster.xml:521 reference_raster.xml:1014 +#: reference_raster.xml:2151 reference_raster.xml:2311 +#: reference_raster.xml:3808 reference_raster.xml:3874 +#: reference_raster.xml:3997 reference_raster.xml:4100 +#: reference_raster.xml:4164 reference_raster.xml:4317 +#: reference_raster.xml:4782 reference_raster.xml:5061 +#: reference_raster.xml:5126 reference_raster.xml:5191 +#: reference_raster.xml:5359 reference_raster.xml:5496 +#: reference_raster.xml:5698 reference_raster.xml:5795 +#: reference_raster.xml:5915 reference_raster.xml:6039 +#: reference_raster.xml:6118 reference_raster.xml:6168 +#: reference_raster.xml:6218 reference_raster.xml:6268 +#: reference_raster.xml:6318 reference_raster.xml:6367 +#: reference_raster.xml:6417 reference_raster.xml:6467 +#: reference_raster.xml:7437 +#, no-c-format +msgid "Availability: 2.0.0" +msgstr "" + +#. Tag: title +#: reference_raster.xml:376 +#, no-c-format +msgid "Examples: Apply all possible constraints on column based on data" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:378 +#, no-c-format +msgid "" +"CREATE TABLE myrasters(rid SERIAL primary key, rast raster);\n" +"INSERT INTO myrasters(rast)\n" +"SELECT ST_AddBand(ST_MakeEmptyRaster(1000, 1000, 0.3, -0.3, 2, 2, 0, " +"0,4326), 1, '8BSI'::text, -129, NULL);\n" +"\n" +"SELECT AddRasterConstraints('myrasters'::name, 'rast'::name);\n" +"\n" +"\n" +"-- verify if registered correctly in the raster_columns view --\n" +"SELECT srid, scale_x, scale_y, blocksize_x, blocksize_y, num_bands, " +"pixel_types, nodata_values\n" +" FROM raster_columns\n" +" WHERE r_table_name = 'myrasters';\n" +" \n" +" srid | scale_x | scale_y | blocksize_x | blocksize_y | num_bands | " +"pixel_types| nodata_values\n" +"------+---------+---------+-------------+-------------+-----------" +"+-------------+---------------\n" +" 4326 | 2 | 2 | 1000 | 1000 | 1 | " +"{8BSI} | {0}" +msgstr "" + +#. Tag: title +#: reference_raster.xml:382 +#, no-c-format +msgid "Examples: Apply single constraint" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:384 +#, no-c-format +msgid "" +"CREATE TABLE public.myrasters2(rid SERIAL primary key, rast raster);\n" +"INSERT INTO myrasters2(rast)\n" +"SELECT ST_AddBand(ST_MakeEmptyRaster(1000, 1000, 0.3, -0.3, 2, 2, 0, " +"0,4326), 1, '8BSI'::text, -129, NULL);\n" +"\n" +"SELECT AddRasterConstraints('public'::name, 'myrasters2'::name, 'rast'::" +"name,'regular_blocking', 'blocksize');\n" +"-- get notice--\n" +"NOTICE: Adding regular blocking constraint\n" +"INFO: The regular_blocking constraint is just a flag indicating that the " +"column \"rast\" is regularly blocked. As no function exist yet to assert " +"that a raster column is regularly blocked, it is up to the end-user to " +"ensure that the column is truly regularly blocked.\n" +"CONTEXT: PL/pgSQL function \"addrasterconstraints\" line 85 at assignment\n" +"NOTICE: Adding blocksize-X constraint\n" +"NOTICE: Adding blocksize-Y constraint" +msgstr "" + +#. Tag: para +#: reference_raster.xml:390 +#, no-c-format +msgid "" +", , , , , " +msgstr "" + +#. Tag: refname +#: reference_raster.xml:396 +#, no-c-format +msgid "DropRasterConstraints" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:398 +#, no-c-format +msgid "" +"Drops PostGIS raster constraints that refer to a raster table column. Useful " +"if you need to reload data or update your raster column data." +msgstr "" + +#. Tag: funcsynopsis +#: reference_raster.xml:402 +#, no-c-format +msgid "" +" boolean DropRasterConstraints name rasttable name rastcolumn boolean srid boolean scale_x boolean scale_y boolean blocksize_x boolean " +"blocksize_y boolean same_alignment " +"boolean regular_blocking boolean " +"num_bands=true boolean pixel_types=true " +"boolean " +"nodata_values=true boolean out_db=true " +"boolean extent=true boolean " +"DropRasterConstraints name rastschema name rasttable name rastcolumn boolean srid=true " +"boolean scale_x=true boolean " +"scale_y=true boolean blocksize_x=true " +"boolean blocksize_y=true boolean " +"same_alignment=true boolean regular_blocking=true boolean " +"num_bands=true boolean pixel_types=true " +"boolean " +"nodata_values=true boolean out_db=true " +"boolean extent=true boolean " +"DropRasterConstraints name rastschema name rasttable name rastcolumn text[] constraints " +msgstr "" + +#. Tag: para +#: reference_raster.xml:515 +#, no-c-format +msgid "" +"Drops PostGIS raster constraints that refer to a raster table column that " +"were added by . Useful if you " +"need to load more data or update your raster column data. You do not need to " +"do this if you want to get rid of a raster table or a raster column." +msgstr "" + +#. Tag: para +#: reference_raster.xml:517 +#, no-c-format +msgid "To drop a raster table use the standard" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:517 +#, no-c-format +msgid "DROP TABLE mytable" +msgstr "" + +#. Tag: para +#: reference_raster.xml:518 +#, no-c-format +msgid "" +"To drop just a raster column and leave the rest of the table, use standard " +"SQL" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:518 +#, no-c-format +msgid "ALTER TABLE mytable DROP COLUMN rast" +msgstr "" + +#. Tag: para +#: reference_raster.xml:519 +#, no-c-format +msgid "" +"the table will disappear from the raster_columns catalog " +"if the column or table is dropped. However if only the constraints are " +"dropped, the raster column will still be listed in the " +"raster_columns catalog, but there will be no other " +"information about it aside from the column name and table." +msgstr "" + +#. Tag: title +#: reference_raster.xml:524 reference_raster.xml:559 reference_raster.xml:597 +#: reference_raster.xml:1018 reference_raster.xml:1116 +#: reference_raster.xml:1160 reference_raster.xml:1193 +#: reference_raster.xml:1228 reference_raster.xml:1262 +#: reference_raster.xml:1397 reference_raster.xml:1435 +#: reference_raster.xml:1475 reference_raster.xml:1531 +#: reference_raster.xml:1583 reference_raster.xml:1621 +#: reference_raster.xml:1656 reference_raster.xml:1692 +#: reference_raster.xml:1728 reference_raster.xml:1762 +#: reference_raster.xml:1796 reference_raster.xml:1830 +#: reference_raster.xml:1878 reference_raster.xml:1934 +#: reference_raster.xml:1988 reference_raster.xml:2022 +#: reference_raster.xml:2072 reference_raster.xml:2107 +#: reference_raster.xml:2165 reference_raster.xml:2203 +#: reference_raster.xml:2278 reference_raster.xml:2315 +#: reference_raster.xml:2357 reference_raster.xml:2407 +#: reference_raster.xml:2449 reference_raster.xml:2493 +#: reference_raster.xml:2535 reference_raster.xml:2579 +#: reference_raster.xml:2646 reference_raster.xml:2729 +#: reference_raster.xml:2816 reference_raster.xml:2891 +#: reference_raster.xml:3098 reference_raster.xml:3139 +#: reference_raster.xml:3173 reference_raster.xml:3221 +#: reference_raster.xml:3264 reference_raster.xml:3345 +#: reference_raster.xml:3428 reference_raster.xml:3489 +#: reference_raster.xml:3551 reference_raster.xml:3630 +#: reference_raster.xml:3685 reference_raster.xml:3767 +#: reference_raster.xml:3816 reference_raster.xml:3878 +#: reference_raster.xml:4104 reference_raster.xml:4321 +#: reference_raster.xml:4364 reference_raster.xml:4604 +#: reference_raster.xml:4727 reference_raster.xml:4917 +#: reference_raster.xml:4987 reference_raster.xml:5024 +#: reference_raster.xml:5363 reference_raster.xml:5702 +#: reference_raster.xml:5922 reference_raster.xml:5987 +#: reference_raster.xml:6172 reference_raster.xml:6222 +#: reference_raster.xml:6272 reference_raster.xml:6322 +#: reference_raster.xml:6371 reference_raster.xml:6421 +#: reference_raster.xml:6471 reference_raster.xml:6533 +#: reference_raster.xml:6578 reference_raster.xml:6623 +#: reference_raster.xml:6707 reference_raster.xml:6794 +#: reference_raster.xml:6875 reference_raster.xml:6956 +#: reference_raster.xml:7037 reference_raster.xml:7169 +#: reference_raster.xml:7250 reference_raster.xml:7330 +#: reference_raster.xml:7527 reference_raster.xml:7622 +#: reference_raster.xml:7715 +#, no-c-format +msgid "Examples" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:526 +#, no-c-format +msgid "" +"SELECT DropRasterConstraints ('myrasters','rast');\n" +"----RESULT output ---\n" +"t\n" +"\n" +"-- verify change in raster_columns --\n" +"SELECT srid, scale_x, scale_y, blocksize_x, blocksize_y, num_bands, " +"pixel_types, nodata_values\n" +" FROM raster_columns\n" +" WHERE r_table_name = 'myrasters';\n" +" \n" +" srid | scale_x | scale_y | blocksize_x | blocksize_y | num_bands | " +"pixel_types| nodata_values\n" +"------+---------+---------+-------------+-------------+-----------" +"+-------------+---------------\n" +" 0 | | | | | " +"| |" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:537 +#, no-c-format +msgid "PostGIS_Raster_Lib_Build_Date" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:539 +#, no-c-format +msgid "Reports full raster library build date." +msgstr "" + +#. Tag: funcprototype +#: reference_raster.xml:544 +#, no-c-format +msgid "" +"text PostGIS_Raster_Lib_Build_Date " +"" +msgstr "" + +#. Tag: para +#: reference_raster.xml:555 +#, no-c-format +msgid "Reports raster build date" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:561 +#, no-c-format +msgid "" +"SELECT PostGIS_Raster_Lib_Build_Date();\n" +"postgis_raster_lib_build_date\n" +"-----------------------------\n" +"2010-04-28 21:15:10" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:573 +#, no-c-format +msgid "PostGIS_Raster_Lib_Version" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:575 +#, no-c-format +msgid "" +"Reports full raster version and build configuration infos." +msgstr "" + +#. Tag: funcprototype +#: reference_raster.xml:581 +#, no-c-format +msgid "" +"text PostGIS_Raster_Lib_Version " +"" +msgstr "" + +#. Tag: para +#: reference_raster.xml:592 +#, no-c-format +msgid "Reports full raster version and build configuration infos." +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:599 +#, no-c-format +msgid "" +"SELECT PostGIS_Raster_Lib_Version();\n" +"postgis_raster_lib_version\n" +"-----------------------------\n" +" 2.0.0" +msgstr "" + +#. Tag: refname +#: reference_raster.xml:613 +#, no-c-format +msgid "ST_GDALDrivers" +msgstr "" + +#. Tag: refpurpose +#: reference_raster.xml:615 +#, no-c-format +msgid "" +"Returns a list of raster formats supported by your lib gdal. These are the " +"formats you can output your raster using ST_AsGDALRaster." +msgstr "" + +#. Tag: funcprototype +#: reference_raster.xml:620 +#, no-c-format +msgid "" +"setof record ST_GDALDrivers " +"integer OUT idx " +"text OUT short_name text OUT long_name text OUT create_options" +msgstr "" + +#. Tag: para +#: reference_raster.xml:633 +#, no-c-format +msgid "" +"Returns a list of raster formats short_name,long_name and creator options of " +"each format supported by your lib gdal. Use the short_name as input in the " +"format parameter of . Options vary depending on what drivers your libgdal was compiled with. " +"create_options returns an xml formatted set of " +"CreationOptionList/Option consisting of name and optional type, description and set of VALUE " +"for each creator option for the specific driver." +msgstr "" + +#. Tag: para +#: reference_raster.xml:636 reference_raster.xml:942 reference_raster.xml:4411 +#: reference_raster.xml:4509 reference_raster.xml:4600 +#: reference_raster.xml:4680 +#, no-c-format +msgid "Availability: 2.0.0 - requires GDAL >= 1.6.0." +msgstr "" + +#. Tag: title +#: reference_raster.xml:640 +#, no-c-format +msgid "Examples: List of Drivers" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:642 +#, no-c-format +msgid "" +"SELECT short_name, long_name\n" +"FROM st_gdaldrivers()\n" +"ORDER BY short_name;\n" +" short_name | long_name\n" +"----------------+--------------------------------------\n" +"AAIGrid | Arc/Info ASCII Grid\n" +"DTED | DTED Elevation Raster\n" +"EHdr | ESRI .hdr Labelled\n" +"FIT | FIT Image\n" +"GIF | Graphics Interchange Format (.gif)\n" +"GSAG | Golden Software ASCII Grid (.grd)\n" +"GSBG | Golden Software Binary Grid (.grd)\n" +"GTiff | GeoTIFF\n" +"HF2 | HF2/HFZ heightfield raster\n" +"HFA | Erdas Imagine Images (.img)\n" +"ILWIS | ILWIS Raster Map\n" +"INGR | Intergraph Raster\n" +"JPEG | JPEG JFIF\n" +"KMLSUPEROVERLAY | Kml Super Overlay\n" +"NITF | National Imagery Transmission Format\n" +"PNG | Portable Network Graphics\n" +"R | R Object Data Store\n" +"SAGA | SAGA GIS Binary Grid (.sdat)\n" +"SRTMHGT | SRTMHGT File Format\n" +"USGSDEM | USGS Optional ASCII DEM (and CDED)\n" +"VRT | Virtual Raster\n" +"XPM | X11 PixMap Format" +msgstr "" + +#. Tag: title +#: reference_raster.xml:644 +#, no-c-format +msgid "Example: List of options for each driver" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:645 +#, no-c-format +msgid "" +"-- Output the create options XML column of JPEG as a table --\n" +"-- Note you can use these creator options in ST_AsGDALRaster options " +"argument\n" +"SELECT (xpath('@name', g.opt))[1]::text As oname,\n" +" (xpath('@type', g.opt))[1]::text As otype,\n" +" (xpath('@description', g.opt))[1]::text As descrip\n" +"FROM (SELECT unnest(xpath('/CreationOptionList/Option', create_options::" +"xml)) As opt\n" +"FROM st_gdaldrivers()\n" +"WHERE short_name = 'JPEG') As g;\n" +"\n" +" oname | otype | descrip\n" +"-------------+---------+-----------------------------\n" +" PROGRESSIVE | boolean |\n" +" QUALITY | int | good=100, bad=0, default=75\n" +" WORLDFILE | boolean |" +msgstr "" + +#. Tag: programlisting +#: reference_raster.xml:647 +#, no-c-format +msgid "" +"-- raw xml output for creator options for GeoTiff --\n" +"SELECT create_options\n" +"FROM st_gdaldrivers()\n" +"WHERE short_name = 'GTiff';\n" +"\n" +"\n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +" \n" +"