Clarify description of ST_Snap that it is the newly snapped input geometry and will...

git-svn-id: http://svn.osgeo.org/postgis/branches/2.3@15524 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/doc/reference_editor.xml b/doc/reference_editor.xml
index 741d252662c2c5a7d4135c24c4f654c4ff48f9e8..0f4d68a9ef11decdb19346c1f303df750bb7ddc2 100644 (file)
--- a/doc/reference_editor.xml
+++ b/doc/reference_editor.xml
@@ -1732,6 +1732,8 @@ SELECT ST_AsEWKT(ST_SnapToGrid(ST_GeomFromEWKT('LINESTRING(-1.1115678 2.123 3 2.
  Snaps the vertices and segments of a geometry
  another Geometry's vertices.
  A snap distance tolerance is used to control where snapping is performed.
+  The result geometry is the input geometry with the vertices snapped.
+       If no snapping occurs then the input geometry is returned unchanged.
                </para>
                <para>
  Snapping one geometry to another can improve