]> granicus.if.org Git - postgis/commitdiff
Document TopoGeo_addLineString
authorSandro Santilli <strk@keybit.net>
Tue, 3 Jan 2012 20:04:05 +0000 (20:04 +0000)
committerSandro Santilli <strk@keybit.net>
Tue, 3 Jan 2012 20:04:05 +0000 (20:04 +0000)
git-svn-id: http://svn.osgeo.org/postgis/trunk@8656 b70326c6-7e19-0410-871a-916f4a2858ee

doc/extras_topology.xml

index 3f61a755a418a43dadea693c9df883f72a6ba056..631461343e20acc449916e6b8142fe6d74b5154a 100644 (file)
@@ -1827,6 +1827,189 @@ SELECT ST_AsText(topology.ST_GetFaceGeometry('ma_topo', 1)) As facegeomwkt;
         </abstract>
     </sect1info>
          <title>Topology Processing</title>
+               <refentry id="TopoGeo_AddPoint">
+                       <refnamediv>
+                               <refname>TopoGeo_AddPoint</refname>
+                       
+                               <refpurpose>
+Adds a point to an existing topology using a tolerance and possibly splitting an existing edge.
+                               </refpurpose>
+                       </refnamediv>
+               
+                       <refsynopsisdiv>
+                               <funcsynopsis>
+                                       <funcprototype>
+                                               <funcdef>integer <function>TopoGeo_AddNode</function></funcdef>
+                                               <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
+                                               <paramdef><type>geometry </type> <parameter>apoint</parameter></paramdef>
+                                               <paramdef choice="opt"><type>float8 </type> <parameter>tolerance</parameter></paramdef>
+                                       </funcprototype>
+                               </funcsynopsis>
+                       </refsynopsisdiv>
+               
+                       <refsection>
+                <title>Description</title>
+            
+                <para>
+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.
+                </para>
+
+                <!-- use this format if new function -->
+                <para>Availability: 2.0.0</para>
+                       </refsection>
+               
+               
+                       <!-- Optionally add a "See Also" section -->
+                       <refsection>
+                               <title>See Also</title>
+                               <para>
+<xref linkend="TopoGeo_AddLineString"/>,
+<xref linkend="AddNode"/>,
+<xref linkend="CreateTopology"/>
+</para>
+                       </refsection>
+               </refentry>
+
+               <refentry id="TopoGeo_AddLineString">
+                       <refnamediv>
+                               <refname>TopoGeo_AddLineString</refname>
+                       
+                               <refpurpose>
+Adds a linestring to an existing topology using a tolerance and possibly splitting existing edges.
+                               </refpurpose>
+                       </refnamediv>
+               
+                       <refsynopsisdiv>
+                               <funcsynopsis>
+                                       <funcprototype>
+                                               <funcdef>integer <function>TopoGeo_AddLineString</function></funcdef>
+                                               <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
+                                               <paramdef><type>geometry </type> <parameter>aline</parameter></paramdef>
+                                               <paramdef choice="opt"><type>float8 </type> <parameter>tolerance</parameter></paramdef>
+                                       </funcprototype>
+                               </funcsynopsis>
+                       </refsynopsisdiv>
+               
+                       <refsection>
+                <title>Description</title>
+            
+                <para>
+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 may be split by the line.
+                </para>
+
+                <!-- use this format if new function -->
+                <para>Availability: 2.0.0</para>
+                       </refsection>
+               
+               
+                       <!-- Optionally add a "See Also" section -->
+                       <refsection>
+                               <title>See Also</title>
+                               <para><xref linkend="TopoGeo_AddPoint"/>, <xref linkend="CreateTopology"/></para>
+                       </refsection>
+               </refentry>
+
+               <refentry id="TopologyPolygonize">
+                       <refnamediv>
+                               <refname>Polygonize</refname>
+                               <refpurpose>Find and register all faces defined by topology edges</refpurpose>
+                       </refnamediv>
+                       <refsynopsisdiv>
+                               <funcsynopsis>
+                                       <funcprototype>
+                                       <funcdef>text <function>Polygonize</function></funcdef>
+                                       <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
+                                       </funcprototype>
+                               </funcsynopsis>
+                       </refsynopsisdiv>
+               
+                       <refsection>
+                <title>Description</title>
+            
+                <para>Register all faces that can be built out a topology edge primitives.</para>
+                <para>The target topology is assumed to contain no self-intersecting edges.</para>
+                <note><para>Already known faces are recognized, so it is safe to call Polygonize multiple times on the same topology.</para></note>
+                
+                <!-- use this format if new function -->
+                <para>Availability: 2.0.0</para>
+                       </refsection>
+               
+                       <!-- Optionally add a "See Also" section -->
+                       <refsection>
+                               <title>See Also</title>
+                               <para><xref linkend="AddFace"/>, <xref linkend="ST_Polygonize"/></para>
+                       </refsection>
+               </refentry>
+               
+               <refentry id="AddNode">
+                       <refnamediv>
+                               <refname>AddNode</refname>
+                       
+                               <refpurpose>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.</refpurpose>
+                       </refnamediv>
+               
+                       <refsynopsisdiv>
+                               <funcsynopsis>
+                                       <funcprototype>
+                                               <funcdef>integer <function>AddNode</function></funcdef>
+                                               <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
+                                               <paramdef><type>geometry </type> <parameter>apoint</parameter></paramdef>
+                                               <paramdef choice='opt'><type>boolean </type> <parameter>allowEdgeSplitting=false</parameter></paramdef>
+                                               <paramdef choice='opt'><type>boolean </type> <parameter>computeContainingFace=false</parameter></paramdef>
+                                       </funcprototype>
+                               </funcsynopsis>
+                       </refsynopsisdiv>
+               
+                       <refsection>
+                <title>Description</title>
+            
+                <para>
+Adds a point node to the node table in the specified topology schema.
+The <xref linkend="AddEdge" /> function automatically adds start and end
+points of an edge when called so not necessary to explicitly add nodes
+of an edge.
+                </para>
+
+       <para>
+If any edge crossing the node is found either an exception is raised or
+the edge is splitted, depending on the <varname>allowEdgeSplitting</varname>
+parameter value.
+       </para>
+
+       <para>
+If <varname>computeContainingFace</varname> is true a newly added node would
+get the correct containing face computed.
+       </para>
+
+                <note><para>If the <varname>apoint</varname> geometry already exists as a node, the node is not added but the existing nodeid is returned.</para></note>
+                
+                <!-- use this format if new function -->
+                <para>Availability: 2.0.0</para>
+                       </refsection>
+               
+               
+                       <refsection>
+                               <title>Examples</title>
+                               <programlisting>SELECT topology.AddNode('ma_topo', ST_GeomFromText('POINT(227641.6 893816.5)', 26986) ) As nodeid;
+-- result --
+nodeid
+--------
+ 4
+</programlisting>
+                       </refsection>
+               
+                       <!-- Optionally add a "See Also" section -->
+                       <refsection>
+                               <title>See Also</title>
+                               <para><xref linkend="AddEdge"/>, <xref linkend="CreateTopology"/></para>
+                       </refsection>
+               </refentry>
+
             <refentry id="AddEdge">
                        <refnamediv>
                                <refname>AddEdge</refname>
@@ -1994,143 +2177,6 @@ faceid
                        </refsection>
                </refentry>
 
-               <refentry id="TopoGeo_AddPoint">
-                       <refnamediv>
-                               <refname>TopoGeo_AddPoint</refname>
-                       
-                               <refpurpose>
-Adds a point to an existing topology using a tolerance and possibly splitting an existing edge.
-                               </refpurpose>
-                       </refnamediv>
-               
-                       <refsynopsisdiv>
-                               <funcsynopsis>
-                                       <funcprototype>
-                                               <funcdef>integer <function>TopoGeo_AddNode</function></funcdef>
-                                               <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
-                                               <paramdef><type>geometry </type> <parameter>apoint</parameter></paramdef>
-                                               <paramdef choice="opt"><type>float8 </type> <parameter>tolerance</parameter></paramdef>
-                                       </funcprototype>
-                               </funcsynopsis>
-                       </refsynopsisdiv>
-               
-                       <refsection>
-                <title>Description</title>
-            
-                <para>
-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.
-                </para>
-
-                <!-- use this format if new function -->
-                <para>Availability: 2.0.0</para>
-                       </refsection>
-               
-               
-                       <!-- Optionally add a "See Also" section -->
-                       <refsection>
-                               <title>See Also</title>
-                               <para><xref linkend="AddNode"/>, <xref linkend="CreateTopology"/></para>
-                       </refsection>
-               </refentry>
-
-               <refentry id="TopologyPolygonize">
-                       <refnamediv>
-                               <refname>Polygonize</refname>
-                               <refpurpose>Find and register all faces defined by topology edges</refpurpose>
-                       </refnamediv>
-                       <refsynopsisdiv>
-                               <funcsynopsis>
-                                       <funcprototype>
-                                       <funcdef>text <function>Polygonize</function></funcdef>
-                                       <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
-                                       </funcprototype>
-                               </funcsynopsis>
-                       </refsynopsisdiv>
-               
-                       <refsection>
-                <title>Description</title>
-            
-                <para>Register all faces that can be built out a topology edge primitives.</para>
-                <para>The target topology is assumed to contain no self-intersecting edges.</para>
-                <note><para>Already known faces are recognized, so it is safe to call Polygonize multiple times on the same topology.</para></note>
-                
-                <!-- use this format if new function -->
-                <para>Availability: 2.0.0</para>
-                       </refsection>
-               
-                       <!-- Optionally add a "See Also" section -->
-                       <refsection>
-                               <title>See Also</title>
-                               <para><xref linkend="AddFace"/>, <xref linkend="ST_Polygonize"/></para>
-                       </refsection>
-               </refentry>
-               
-               <refentry id="AddNode">
-                       <refnamediv>
-                               <refname>AddNode</refname>
-                       
-                               <refpurpose>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.</refpurpose>
-                       </refnamediv>
-               
-                       <refsynopsisdiv>
-                               <funcsynopsis>
-                                       <funcprototype>
-                                               <funcdef>integer <function>AddNode</function></funcdef>
-                                               <paramdef><type>varchar </type> <parameter>toponame</parameter></paramdef>
-                                               <paramdef><type>geometry </type> <parameter>apoint</parameter></paramdef>
-                                               <paramdef choice='opt'><type>boolean </type> <parameter>allowEdgeSplitting=false</parameter></paramdef>
-                                               <paramdef choice='opt'><type>boolean </type> <parameter>computeContainingFace=false</parameter></paramdef>
-                                       </funcprototype>
-                               </funcsynopsis>
-                       </refsynopsisdiv>
-               
-                       <refsection>
-                <title>Description</title>
-            
-                <para>
-Adds a point node to the node table in the specified topology schema.
-The <xref linkend="AddEdge" /> function automatically adds start and end
-points of an edge when called so not necessary to explicitly add nodes
-of an edge.
-                </para>
-
-       <para>
-If any edge crossing the node is found either an exception is raised or
-the edge is splitted, depending on the <varname>allowEdgeSplitting</varname>
-parameter value.
-       </para>
-
-       <para>
-If <varname>computeContainingFace</varname> is true a newly added node would
-get the correct containing face computed.
-       </para>
-
-                <note><para>If the <varname>apoint</varname> geometry already exists as a node, the node is not added but the existing nodeid is returned.</para></note>
-                
-                <!-- use this format if new function -->
-                <para>Availability: 2.0.0</para>
-                       </refsection>
-               
-               
-                       <refsection>
-                               <title>Examples</title>
-                               <programlisting>SELECT topology.AddNode('ma_topo', ST_GeomFromText('POINT(227641.6 893816.5)', 26986) ) As nodeid;
--- result --
-nodeid
---------
- 4
-</programlisting>
-                       </refsection>
-               
-                       <!-- Optionally add a "See Also" section -->
-                       <refsection>
-                               <title>See Also</title>
-                               <para><xref linkend="AddEdge"/>, <xref linkend="CreateTopology"/></para>
-                       </refsection>
-               </refentry>
                
        </sect1>