forgot to commit ST_Delaun... reference in last

git-svn-id: http://svn.osgeo.org/postgis/trunk@10276 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_processing.xml b/doc/reference_processing.xml
index cb8d802253587e4eb42e26dc0c3c304c4ab31441..9e655070efe0ffd66e407d2597a76bd6fcb1abed 100644 (file)
--- a/doc/reference_processing.xml
+++ b/doc/reference_processing.xml
@@ -903,10 +903,11 @@ togheter.
                        </para>
 
                        <para>Availability: 2.1.0 - requires GEOS &gt;= 3.4.0.</para>
+                       <para>&Z_support;</para>
 
                </refsection>
                          <refsection>
-               <title>Examples</title>
+               <title>2D Examples</title>
                        <informaltable>
                                  <tgroup cols="1">
                                        <tbody>
@@ -960,16 +961,59 @@ SELECT
                ),0.001,1) 
         As  dtriag;</programlisting>
                                                </para></entry>
-                                         </row>
+                               </row>
+                               <row><entry><para><informalfigure>
+                                                       <mediaobject>
+                                                         <imageobject>
+                                                               <imagedata fileref="images/st_delaunaytriangles04.png" />
+                                                         </imageobject>
+                                                         <caption><para>-- delaunay triangles of 45 points as 55 triangle polygons</para></caption>
+                                                       </mediaobject>
+                                                 </informalfigure>
+                               <programlisting>-- this produces a table of 42 points that form an L shape
+SELECT (ST_DumpPoints(ST_GeomFromText(
+'MULTIPOINT(14 14,34 14,54 14,74 14,94 14,114 14,134 14,
+150 14,154 14,154 6,134 6,114 6,94 6,74 6,54 6,34 6,
+14 6,10 6,8 6,7 7,6 8,6 10,6 30,6 50,6 70,6 90,6 110,6 130,
+6 150,6 170,6 190,6 194,14 194,14 174,14 154,14 134,14 114,
+14 94,14 74,14 54,14 34,14 14)'))).geom 
+       INTO TABLE l_shape;
+-- output as individual polygon triangles
+SELECT ST_AsText((ST_Dump(geom)).geom) As wkt
+FROM ( SELECT ST_DelaunayTriangles(ST_Collect(geom)) As geom
+FROM l_shape) As foo;
+
+---wkt ---
+POLYGON((6 194,6 190,14 194,6 194))
+POLYGON((14 194,6 190,14 174,14 194))
+POLYGON((14 194,14 174,154 14,14 194))
+POLYGON((154 14,14 174,14 154,154 14))
+POLYGON((154 14,14 154,150 14,154 14))
+POLYGON((154 14,150 14,154 6,154 14))
+:
+:
+</programlisting>
+                                               </para></entry>
+                        </row> 
+
                </tbody>
        </tgroup>
 </informaltable>
          </refsection>
-
+         <refsection>
+                       <title>3D Examples</title>
+                       <programlisting>-- 3D multipoint --
+SELECT ST_AsText(ST_DelaunayTriangles(ST_GeomFromText(
+'MULTIPOINT Z(14 14 10,
+150 14 100,34 6 25, 20 10 150)'))) As wkt;
+
+-----wkt----
+GEOMETRYCOLLECTION Z (POLYGON Z ((14 14 10,20 10 150,34 6 25,14 14 10))
+ ,POLYGON Z ((14 14 10,34 6 25,150 14 100,14 14 10)))</programlisting>
+               </refsection>
                <refsection>
                        <title>See Also</title>
-                       <para>
-<xref linkend="ST_Dump" />
+                       <para><xref linkend="ST_ConcaveHull" />, <xref linkend="ST_Dump" />
                        </para>
                </refsection>
        </refentry>