From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Mon, 30 Jan 2012 21:52:47 +0000 (+0000)
Subject: ST_Segmentize returns invalid LINESTRING for zero-length input (#1304)
X-Git-Tag: 2.0.0alpha3~28
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=883b8860cb03f56bc90241d5648f6f09fa62baca;p=postgis

ST_Segmentize returns invalid LINESTRING for zero-length input (#1304)


git-svn-id: http://svn.osgeo.org/postgis/trunk@8971 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/ptarray.c b/liblwgeom/ptarray.c
index 3eff56546..53fdab043 100644
--- a/liblwgeom/ptarray.c
+++ b/liblwgeom/ptarray.c
@@ -428,7 +428,7 @@ ptarray_segmentize2d(const POINTARRAY *ipa, double dist)
 		}
 		else /* copy second point */
 		{
-			ptarray_append_point(opa, &p2, LW_FALSE);
+			ptarray_append_point(opa, &p2, (ipa->npoints==2)?LW_TRUE:LW_FALSE);
 			p1 = p2;
 			ipoff++;
 		}