<para>The PostGIS Topology types and functions are used to manage topological objects such as faces, edges and nodes. </para>
<para>Sandro Santilli's presentation at PostGIS Day Paris 2011 conference gives a good synopsis of PostGIS Topology and where it is headed <ulink url="http://strk.keybit.net/projects/postgis/Paris2011_TopologyWithPostGIS_2_0.pdf">Topology with PostGIS 2.0 slide deck</ulink>.</para>
<para>Vincent Picavet provides a good synopsis and overview of what is Topology, how is it used, and various FOSS4G tools that support it in <ulink url="https://github.com/Oslandia/presentations/blob/master/pgconf_eu_2012/pgconfeu2012_vincent_picavet_postgis_topology.pdf?raw=true">PostGIS Topology PGConf EU 2012</ulink>.</para>
- <para>An example of a topologically based GIS database is the <ulink url="http://www.census.gov/geo/www/tiger/overview.html">US Census Topologically Integrated Geographic Encoding and Reference System (TIGER)</ulink> database. If you want to experiment with PostGIS topology and need some data, check out <xref linkend="Topology_Load_Tiger" />.</para>
+ <para>An example of a topologically based GIS database is the <ulink url="https://www.census.gov/geo/maps-data/data/tiger.html">US Census Topologically Integrated Geographic Encoding and Referencing System (TIGER)</ulink> database. If you want to experiment with PostGIS topology and need some data, check out <xref linkend="Topology_Load_Tiger" />.</para>
<para>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.</para>
<para>Details of this project can be found at <ulink url="http://trac.osgeo.org/postgis/wiki/UsersWikiPostgisTopology">PostGIS Topology Wiki</ulink></para>
</question>
<answer>
- <para>As of PostGIS 2.1.3 and 2.0.5, a security change was made to by default disable all GDAL drivers and out of db rasters. The release notes are at <ulink url="/2014/05/19/postgis-2.0.6_and_2.1.3">PostGIS 2.0.6, 2.1.3 security release</ulink>. In order to reenable specific drivers or all drivers and reenable out of database support, refer to <xref linkend="install_short_version" />.</para>
+ <para>As of PostGIS 2.1.3 and 2.0.5, a security change was made to by default disable all GDAL drivers and out of db rasters. The release notes are at <ulink url="http://postgis.net/2014/05/19/postgis-2.0.6_and_2.1.3">PostGIS 2.0.6, 2.1.3 security release</ulink>. In order to reenable specific drivers or all drivers and reenable out of database support, refer to <xref linkend="install_short_version" />.</para>
</answer>
</qandaentry>
<para>There is a full length beginner tutorial <ulink url="http://trac.osgeo.org/postgis/wiki/WKTRasterTutorial01"> Intersecting vector buffers with large raster coverage using PostGIS Raster</ulink>.
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
<ulink url="http://gis4free.wordpress.com/category/postgis-raster/">Jorge's PostGIS Raster / Oracle GeoRaster Series</ulink>.
- There is a whole chapter (more than 35 pages of content) dedicated to PostGIS Raster with free code and data downloads at <ulink url="http://www.postgis.us/chapter_13">PostGIS in Action - Raster chapter</ulink>.
+ There is a whole chapter (more than 35 pages of content) dedicated to PostGIS Raster with free code and data downloads at <ulink url="https://www.manning.com/books/postgis-in-action-second-edition">PostGIS in Action - Raster chapter</ulink>.
You can <ulink url="http://www.postgis.us/page_buy_book">buy PostGIS in Action</ulink> 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.
</para>
- <para>Here is a review from a PostGIS Raster user <ulink url="http://fuzzytolerance.info/code/postgis-raster-ftw/">PostGIS raster applied to land classification urban forestry</ulink></para>
+ <para>Here is a review from a PostGIS Raster user <ulink url="http://fuzzytolerance.info/blog/2010/10/25/2010-10-26-postgis-raster-ftw/">PostGIS raster applied to land classification urban forestry</ulink></para>
</answer>
</qandaentry>
support should have PostGIS Raster in them. </para>
<para>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. <ulink url="http://vbkto.dyndns.org/sdk/">http://vbkto.dyndns.org/sdk/</ulink>.
+ click the SDK bat and run your commands from there. <ulink url="www.gisinternals.com">http://www.gisinternals.com</ulink>.
Also available are VS project files.</para>
<para><ulink url="http://fwtools.maptools.org/">FWTools latest stable version for Windows is compiled with Raster support</ulink>.</para>
</answer>
<para>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.</para>
<para>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 <ulink url="http://vbkto.dyndns.org/sdk/">http://vbkto.dyndns.org/sdk/</ulink> are a good choice if you don't want the hassle of having to setup to compile your own.</para>
+ support it with fairly minimal effort. Again for Windows, Tamas' binaries <ulink url="www.gisinternals.com">http://www.gisinternals.com</ulink> are a good choice if you don't want the hassle of having to setup to compile your own.</para>
</answer>
</qandaentry>
<term>Crowd Funding Campaigns</term>
<listitem>
- <para>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 <ulink url="http://postgis.net/mailman/listinfo/postgis-users">PostGIS newsgroup</ulink> your thoughts and together we can make it happen. </para>
+ <para>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 <ulink url="https://lists.osgeo.org/mailman/listinfo/postgis-users">PostGIS newsgroup</ulink> your thoughts and together we can make it happen. </para>
<para>PostGIS 2.0.0 was the first release we tried this strategy. We used <ulink url="http://www.pledgebank.com">PledgeBank</ulink> and we got two successful campaigns out of it.</para>
<para><ulink url="http://www.pledgebank.com/postgistopology"><emphasis role="bold">postgistopology</emphasis></ulink> - 10 plus sponsors each contributed $250 USD to build toTopoGeometry function and beef up topology support in 2.0.0. It happened.</para>
<para><ulink url="http://www.pledgebank.com/postgis64windows"><emphasis role="bold">postgis64windows</emphasis></ulink> - 20 someodd sponsors each contributed $100 USD to pay for the work needed to work out PostGIS 64-bit issues on windows. It happened. We now have a 64-bit release for PostGIS 2.0.1 available on PostgreSQL stack builder.</para>
<para>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 <ulink
- url="http://openlayers.org/dev/examples/vector-formats.html">OpenLayers GeoJSON Example</ulink>
+ url="http://openlayers.org/en/v3.10.1/examples/geojson.html">OpenLayers GeoJSON Example</ulink>
</para>
<programlisting>SELECT ST_AsGeoJSON(the_geom) from fe_edges limit 1;
st_asgeojson
<note>
<para>
- For more information about Slope, Aspect and Hillshade, please refer to <ulink url="http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=How%20Hillshade%20works">ESRI - How hillshade works</ulink> and <ulink url="http://geospatial.intergraph.com/fieldguide/wwhelp/wwhimpl/common/html/wwhelp.htm?context=FieldGuide&file=Aspect_Images.html">ERDAS Field Guide - Aspect Images</ulink>.
+ For more information about Slope, Aspect and Hillshade, please refer to <ulink url="http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=How%20Hillshade%20works">ESRI - How hillshade works</ulink> and <ulink url="http://e2b.erdas.com/fieldguide/wwhelp/wwhimpl/common/html/wwhelp.htm?context=FieldGuide&file=Aspect_Images.html">ERDAS Field Guide - Aspect Images</ulink>.
</para>
</note>
<note>
<para>
- For more information about Slope, Aspect and Hillshade, please refer to <ulink url="http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=How%20Hillshade%20works">ESRI - How hillshade works</ulink> and <ulink url="http://geospatial.intergraph.com/fieldguide/wwhelp/wwhimpl/common/html/wwhelp.htm?context=FieldGuide&file=Slope_Images.html">ERDAS Field Guide - Slope Images</ulink>.
+ For more information about Slope, Aspect and Hillshade, please refer to <ulink url="http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=How%20Hillshade%20works">ESRI - How hillshade works</ulink> and <ulink url="http://e2b.erdas.com/fieldguide/wwhelp/wwhimpl/common/html/wwhelp.htm?context=FieldGuide&file=Slope_Images.html">ERDAS Field Guide - Slope Images</ulink>.
</para>
</note>
attitude to SRID handling. Simplifies code and drops build depend on
GNU trove.</para>
- <para>Added EJB2 support generously donated by the "Geodetix s.r.l.
- Company" <ulink url="http://www.geodetix.it/">http://www.geodetix.it/</ulink></para>
+ <para>Added EJB2 support generously donated by the "Geodetix s.r.l. Company" </para>
<para>Added EJB3 tutorial / examples donated by Norman Barker
<nbarker@ittvis.com></para>
</listitem>
<listitem>
- <para><ulink url="http://gis.hsr.ch/wiki/images/3/3d/9dem_springer.pdf">Dimensionally
- Extended Nine-Intersection Model (DE-9IM) by Christian Strobl</ulink></para>
+ <para><ulink url="https://en.wikipedia.org/wiki/DE-9IM">Dimensionally
+ Extended Nine-Intersection Model (DE-9IM)</ulink></para>
</listitem>
<listitem>
<para><ulink url="http://docs.geotools.org/latest/userguide/library/jts/dim9.html">GeoTools: Point Set Theory and the DE-9IM Matrix</ulink></para>
</sect2>
<sect2 id="RasterOutput_PSQL">
<title>Outputting Rasters with PSQL</title>
- <para>Sadly PSQL doesn't have easy to use built-in functionality for outputting binaries. This is a bit of a hack and based on one of the suggestions outlined in
- <ulink url="http://people.planetpostgresql.org/andrew/index.php?/archives/196-Clever-trick-challenge.html">Clever Trick Challenge -- Outputting bytea with psql</ulink> that piggy backs on PostgreSQL somewhat legacy large object support. To use first launch your psql commandline connected to your database.
+ <para>Sadly PSQL doesn't have easy to use built-in functionality for outputting binaries. This is a bit of a hack that piggy backs on PostgreSQL somewhat legacy large object support. To use first launch your psql commandline connected to your database.
</para>
<para>Unlike the python approach, this approach creates the file on your local computer.</para>
<screen>SELECT oid, lowrite(lo_open(oid, 131072), png) As num_bytes
projects / postgis / commitdiff