update ST_Buffer so appears in new in PostGIS 1.5 section

git-svn-id: http://svn.osgeo.org/postgis/trunk@4224 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference.xml b/doc/reference.xml
index 57010e1fd88d4e5e2bf6aa2a291b03cf3ed4e977..40bcb98054a3faa74914c36fe74e81b8bf0c965a 100644 (file)
--- a/doc/reference.xml
+++ b/doc/reference.xml
@@ -11534,7 +11534,8 @@ SELECT ST_Buffer(ST_GeomFromText('POINT(50 50)'), 20) As smallc,
 
                                <refpurpose>Returns a geometry that represents all points whose distance
                        from this Geometry is less than or equal to distance. Calculations
-                       are in the Spatial Reference System of this Geometry.
+                       are in the Spatial Reference System of this Geometry. Introduced in 1.5 support for
+                       different end cap and mitre settings to control shape.
                        </refpurpose>
                        </refnamediv>
 
@@ -11568,8 +11569,13 @@ SELECT ST_Buffer(ST_GeomFromText('POINT(50 50)'), 20) As smallc,
 
                                <para>Returns a geometry that represents all points whose distance
                        from this Geometry is less than or equal to distance. Calculations
-                       are in the Spatial Reference System of this Geometry.
+                       are in the Spatial Reference System of this Geometry. Introduced in 1.5 support for
+                       different end cap and mitre settings to control shape.
                                </para>
+                               <para>Availability: 1.5 - ST_Buffer was enhanced to support different endcaps and join types. These are useful for example to convert road linestrings
+                                       into polygon roads with flat or square edges instead of rounded edges.  - requires GEOS &gt;= 3.2 to take advantage of advanced functionality.
+                               </para>
+
                                <para>
 The optional third parameter can either specify number of segments used to approximate a quarter circle (integer case, defaults to 8) or a list of blank-separated key=value pairs (string case) to tweak operations as follows:
 <itemizedlist>