Link to wikipedia article about GeoHash from ST_GeoHash

git-svn-id: http://svn.osgeo.org/postgis/trunk@11300 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_output.xml b/doc/reference_output.xml
index c4d6f62263d6809553e178533d21bbb9db71e7f6..14ed7761d91dcdfec2e40bbc232b6afc1ed09dad 100644 (file)
--- a/doc/reference_output.xml
+++ b/doc/reference_output.xml
@@ -931,7 +931,7 @@ x3dfrag
          <refnamediv>
                <refname>ST_GeoHash</refname>
 
-               <refpurpose>Return a GeoHash representation (geohash.org) of the geometry.</refpurpose>
+               <refpurpose>Return a GeoHash representation of the geometry.</refpurpose>
          </refnamediv>
 
          <refsynopsisdiv>
@@ -947,7 +947,7 @@ x3dfrag
          <refsection>
                <title>Description</title>
 
-               <para>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.</para>
+               <para>Return a GeoHash representation (<ulink url="http://en.wikipedia.org/wiki/Geohash">http://en.wikipedia.org/wiki/Geohash</ulink>) 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.</para>
 
                <para>If no <varname>maxchars</varname> 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.</para>