From 0427c4298a4626ee0afa3a1b4edf2a773029d7d6 Mon Sep 17 00:00:00 2001 From: David Blasby Date: Fri, 17 Oct 2003 16:12:23 +0000 Subject: [PATCH] Made Envelope() CW instead of CCW. git-svn-id: http://svn.osgeo.org/postgis/trunk@316 b70326c6-7e19-0410-871a-916f4a2858ee --- postgis_fn.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/postgis_fn.c b/postgis_fn.c index 1f343b829..067bcabca 100644 --- a/postgis_fn.c +++ b/postgis_fn.c @@ -11,6 +11,9 @@ * ********************************************************************** * $Log$ + * Revision 1.27 2003/10/17 16:12:23 dblasby + * Made Envelope() CW instead of CCW. + * * Revision 1.26 2003/10/17 16:07:05 dblasby * made isEmpty() return true/false * @@ -1161,11 +1164,12 @@ Datum envelope(PG_FUNCTION_ARGS) //use LLB's z value (we're going to set is3d to false) - set_point( &pts[0], geom->bvol.LLB.x , geom->bvol.LLB.y , geom->bvol.LLB.z ); - set_point( &pts[1], geom->bvol.URT.x , geom->bvol.LLB.y , geom->bvol.LLB.z ); - set_point( &pts[2], geom->bvol.URT.x , geom->bvol.URT.y , geom->bvol.LLB.z ); - set_point( &pts[3], geom->bvol.LLB.x , geom->bvol.URT.y , geom->bvol.LLB.z ); + //0,1,2,3,4 --> CCW order, 4,3,2,1,0 --> CW order set_point( &pts[4], geom->bvol.LLB.x , geom->bvol.LLB.y , geom->bvol.LLB.z ); + set_point( &pts[3], geom->bvol.URT.x , geom->bvol.LLB.y , geom->bvol.LLB.z ); + set_point( &pts[2], geom->bvol.URT.x , geom->bvol.URT.y , geom->bvol.LLB.z ); + set_point( &pts[2], geom->bvol.LLB.x , geom->bvol.URT.y , geom->bvol.LLB.z ); + set_point( &pts[1], geom->bvol.LLB.x , geom->bvol.LLB.y , geom->bvol.LLB.z ); pts_per_ring[0] = 5; //ring has 5 points -- 2.40.0