[postgis-commits] svn - r3102 - branches/1.3

[postgis-commits at postgis.refractions.net]

Author: robe
Date: 2008-10-14 11:15:25 -0700 (Tue, 14 Oct 2008)
New Revision: 3102

Modified:
   branches/1.3/postgis_comments.sql
Log:
add st_simplify notes

Modified: branches/1.3/postgis_comments.sql
===================================================================
--- branches/1.3/postgis_comments.sql	2008-10-14 17:42:15 UTC (rev 3101)
+++ branches/1.3/postgis_comments.sql	2008-10-14 18:15:25 UTC (rev 3102)
@@ -224,6 +224,10 @@
 			
 COMMENT ON AGGREGATE ST_Polygonize(geometry) IS 'args: geomfield - Aggregate. Creates a GeometryCollection containing possible polygons formed from the constituent linework of a set of geometries.';
 			
+COMMENT ON FUNCTION ST_Simplify(geometry, float) IS 'args: geomA, tolerance - Returns a "simplified" version of the given geometry using the Douglas-Peuker algorithm.';
+			
+COMMENT ON FUNCTION ST_SimplifyPreserveTopology(geometry, float) IS 'args: geomA, tolerance - Returns a "simplified" version of the given geometry using the Douglas-Peuker algorithm. Will avoid creating derived geometries (polygons in particular) that are invalid.';
+			
 COMMENT ON AGGREGATE ST_Union(geometry) IS 'args: g1field - Returns a geometry that represents the point set union of the Geometries.';
 			
 COMMENT ON FUNCTION ST_Union(geometry) IS 'args: g1 - Returns a geometry that represents the point set union of the Geometries.';