From ba395f4947efe87225af2cf4a836f380ab4f772d Mon Sep 17 00:00:00 2001 From: Paul Ramsey Date: Sun, 12 Mar 2006 17:20:08 +0000 Subject: [PATCH] Fix isccw to return correct ccw answer. git-svn-id: http://svn.osgeo.org/postgis/trunk@2317 b70326c6-7e19-0410-871a-916f4a2858ee --- lwgeom/lwgeom_api.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lwgeom/lwgeom_api.c b/lwgeom/lwgeom_api.c index f11d36ba4..70468652b 100644 --- a/lwgeom/lwgeom_api.c +++ b/lwgeom/lwgeom_api.c @@ -1867,7 +1867,7 @@ ptarray_isccw(const POINTARRAY *pa) { getPoint2d_p(pa, i, &p1); getPoint2d_p(pa, i+1, &p2); - area += (p1.x * p2.y) - (p1.y * p2.x); + area += (p1.y * p2.x) - (p1.x * p2.y); } if ( area > 0 ) return 0; else return 1; -- 2.49.0