From: Sandro Santilli <strk@keybit.net>
Date: Tue, 10 Apr 2012 17:26:57 +0000 (+0000)
Subject: Have ST_ModEdgeSplit and ST_NewEdgesSplit to use ST_Spit (#1715)
X-Git-Tag: 2.0.1~145
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c6fc39dc768ffb4cafc70c323e5d987e50a98b76;p=postgis

Have ST_ModEdgeSplit and ST_NewEdgesSplit to use ST_Spit (#1715)

git-svn-id: http://svn.osgeo.org/postgis/trunk@9624 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/topology/sql/sqlmm.sql.in.c b/topology/sql/sqlmm.sql.in.c
index 10fe83715..8ac9f8064 100644
--- a/topology/sql/sqlmm.sql.in.c
+++ b/topology/sql/sqlmm.sql.in.c
@@ -1904,13 +1904,9 @@ BEGIN
   --
   -- Compute new edges
   --
-  nodepos = ST_Line_locate_point(oldedge.geom, apoint);
-
-  edge1 = ST_Line_substring(oldedge.geom, 0, nodepos);
-  edge1 = ST_SetPoint(edge1, ST_NPoints(edge1)-1, apoint);
-
-  edge2 = ST_Line_substring(oldedge.geom, nodepos, 1);
-  edge2 = ST_SetPoint(edge2, 0, apoint);
+  edge2 := ST_Split(oldedge.geom, apoint);
+  edge1 := ST_GeometryN(edge2, 1);
+  edge2 := ST_GeometryN(edge2, 2);
 
   --
   -- Get ids for the new edges 
@@ -2201,13 +2197,9 @@ BEGIN
   --
   -- Compute new edge
   --
-  nodepos = ST_Line_Locate_Point(oldedge.geom, apoint);
-
-  newedge1 = ST_Line_Substring(oldedge.geom, 0, nodepos);
-  newedge1 = ST_SetPoint(newedge1, ST_NPoints(newedge1)-1, apoint);
-
-  newedge2 = ST_Line_Substring(oldedge.geom, nodepos, 1);
-  newedge2 = ST_SetPoint(newedge2, 0, apoint);
+  newedge2 := ST_Split(oldedge.geom, apoint);
+  newedge1 := ST_GeometryN(newedge2, 1);
+  newedge2 := ST_GeometryN(newedge2, 2);
 
   --
   -- Get ids for the new edge