Link to helper function built using ST_Value

git-svn-id: http://svn.osgeo.org/postgis/trunk@5598 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_wktraster.xml b/doc/reference_wktraster.xml
index b263106bd54008774ba391e29af240f755685254..44747b517faa1f0743505dabcc11855b14e9c36c 100644 (file)
--- a/doc/reference_wktraster.xml
+++ b/doc/reference_wktraster.xml
@@ -1097,6 +1097,10 @@ FROM dummy_rast;
                                                translate it every x,y.</para>
                                <para>Also note that many of these examples particular the intersection example can be more 
                                        simply done with the planned functions that are not currently available.</para>
+                                       
+                                       <para>If you are looking for a function that will take a geometry point and return a pixel value, this is in the works, for now
+                                               you can use a user contributed function <ulink url="http://trac.osgeo.org/postgis/wiki/UsersWikiwktrasterfunctions">upgis_ptval</ulink>
+                                       </para>
                                </note>
                                
                                </refsection>