From: Bborie Park <bkpark at ucdavis.edu>
Date: Tue, 14 Feb 2012 17:29:45 +0000 (+0000)
Subject: Fixed handling of negative X-scale or positive Y-scale in rt_raster_gdal_rasterize... 
X-Git-Tag: 2.0.0alpha5~11
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ce290556e65c7a19a21070ed58248577ead36f52;p=postgis

Fixed handling of negative X-scale or positive Y-scale in rt_raster_gdal_rasterize().  Ticket is #1574.


git-svn-id: http://svn.osgeo.org/postgis/trunk@9187 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/raster/rt_core/rt_api.c b/raster/rt_core/rt_api.c
index 605b6bb28..6a25524a6 100644
--- a/raster/rt_core/rt_api.c
+++ b/raster/rt_core/rt_api.c
@@ -8443,6 +8443,9 @@ rt_raster_gdal_rasterize(const unsigned char *wkb,
 		if (ul_user) {
 			_width = (int) fmax((fabs(src_env.MaxX - src_env.MinX) + (_scale_x / 2.)) / _scale_x, 1);
 			_height = (int) fmax((fabs(src_env.MaxY - src_env.MinY) + (_scale_y / 2.)) / _scale_y, 1);
+
+			src_env.MaxX = src_env.MinX + (_width * _scale_x);
+			src_env.MinY = src_env.MaxY - (_height * _scale_y);
 		}
 
 		RASTER_DEBUGF(3, "shift is: %f, %f", grid_shift_xw, grid_shift_yw);