From: Paul Ramsey <pramsey@cleverelephant.ca>
Date: Tue, 29 Sep 2015 17:30:28 +0000 (+0000)
Subject: #3300, Box3D for curves calculation fix
X-Git-Tag: 2.2.0~55
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=24364cc3a9663839b4380744b87f90eb43051753;p=postgis

#3300, Box3D for curves calculation fix


git-svn-id: http://svn.osgeo.org/postgis/trunk@14136 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/liblwgeom/g_box.c b/liblwgeom/g_box.c
index 3269ac3b5..f3f9bd75b 100644
--- a/liblwgeom/g_box.c
+++ b/liblwgeom/g_box.c
@@ -567,7 +567,7 @@ static int lwcircstring_calculate_gbox_cartesian(LWCIRCSTRING *curve, GBOX *gbox
 
 	/* Initialize */
 	gbox->xmin = gbox->ymin = gbox->zmin = gbox->mmin = FLT_MAX;
-	gbox->xmax = gbox->ymax = gbox->zmax = gbox->mmax = FLT_MIN;
+	gbox->xmax = gbox->ymax = gbox->zmax = gbox->mmax = -1*FLT_MAX;
 
 	for ( i = 2; i < curve->points->npoints; i += 2 )
 	{
diff --git a/regress/tickets.sql b/regress/tickets.sql
index 26165ba53..7b9a9169e 100644
--- a/regress/tickets.sql
+++ b/regress/tickets.sql
@@ -911,5 +911,7 @@ SELECT '#3172', ST_AsText(ST_AddMeasure('LINESTRING(0 0,0 0)', 1, 2));
 --SELECT '#3244a', ST_AsText(ST_3DClosestPoint('POINT(0 0 0)', 'POINT(0 0)'));
 --SELECT '#3244b', ST_AsText(ST_3DClosestPoint('POINT(0 0)', 'POINT(0 0 0)'));
 
+SELECT '#3300', ST_AsText(ST_SnapToGrid(Box2D('CURVEPOLYGON(CIRCULARSTRING(-71.0821 42.3036,-71.4821 42.3036,-71.7821 42.7036,-71.0821 42.7036,-71.0821 42.3036),(-71.1821 42.4036,-71.3821 42.6036,-71.3821 42.4036,-71.1821 42.4036))'::Geometry)::geometry,0.0001));
+
 -- Clean up
 DELETE FROM spatial_ref_sys;
diff --git a/regress/tickets_expected b/regress/tickets_expected
index c67fbcd13..1eddf502d 100644
--- a/regress/tickets_expected
+++ b/regress/tickets_expected
@@ -276,3 +276,4 @@ ERROR:  invalid GML representation
 #2870|Point[GS]
 #2956|t
 #3172|LINESTRING M (0 0 1,0 0 2)
+#3300|POLYGON((-71.7821 42.2622,-71.7821 42.9067,-71.029 42.9067,-71.029 42.2622,-71.7821 42.2622))