Fix #178: ST_XMax() and ST_YMax() return incorrect values. This was caused by the...

git-svn-id: http://svn.osgeo.org/postgis/trunk@4079 b70326c6-7e19-0410-871a-916f4a2858ee

diff --git a/postgis/lwgeom_box3d.c b/postgis/lwgeom_box3d.c
index 462359d32051fd4fcf6bb339ab96e634cbb11ee3..7d0a7413a6fb9c4bcdb4634b97f3de2414ec5626 100644 (file)
--- a/postgis/lwgeom_box3d.c
+++ b/postgis/lwgeom_box3d.c
@@ -328,42 +328,42 @@ PG_FUNCTION_INFO_V1(BOX3D_xmin);
 Datum BOX3D_xmin(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->xmin);
+       PG_RETURN_FLOAT8(LWGEOM_Mind(box->xmin, box->xmax));
 }
 
 PG_FUNCTION_INFO_V1(BOX3D_ymin);
 Datum BOX3D_ymin(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->ymin);
+       PG_RETURN_FLOAT8(LWGEOM_Mind(box->ymin, box->ymax));
 }
 
 PG_FUNCTION_INFO_V1(BOX3D_zmin);
 Datum BOX3D_zmin(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->zmin);
+       PG_RETURN_FLOAT8(LWGEOM_Mind(box->zmin, box->zmax));
 }
 
 PG_FUNCTION_INFO_V1(BOX3D_xmax);
 Datum BOX3D_xmax(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->xmax);
+       PG_RETURN_FLOAT8(LWGEOM_Maxd(box->xmin, box->xmax));
 }
 
 PG_FUNCTION_INFO_V1(BOX3D_ymax);
 Datum BOX3D_ymax(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->ymax);
+       PG_RETURN_FLOAT8(LWGEOM_Maxd(box->ymin, box->ymax));
 }
 
 PG_FUNCTION_INFO_V1(BOX3D_zmax);
 Datum BOX3D_zmax(PG_FUNCTION_ARGS)
 {
        BOX3D *box = (BOX3D *)PG_GETARG_POINTER(0);
-       PG_RETURN_FLOAT8(box->zmax);
+       PG_RETURN_FLOAT8(LWGEOM_Maxd(box->zmin, box->zmax));
 }