From: Bborie Park <bkpark at ucdavis.edu>
Date: Fri, 13 Jul 2012 23:28:44 +0000 (+0000)
Subject: Additional comments regarding use of lwgeom_as_multi() and the
X-Git-Tag: 2.1.0beta2~804
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=b8a287cf7bc8fe8704d6ae1537bb11cec1f652ae;p=postgis

Additional comments regarding use of lwgeom_as_multi() and the
lwgeom_clone_deep()

git-svn-id: http://svn.osgeo.org/postgis/trunk@10056 b70326c6-7e19-0410-871a-916f4a2858ee
---

diff --git a/raster/rt_core/rt_api.c b/raster/rt_core/rt_api.c
index 5fbe39702..9c645605e 100644
--- a/raster/rt_core/rt_api.c
+++ b/raster/rt_core/rt_api.c
@@ -12090,6 +12090,8 @@ LWMPOLY* rt_raster_surface(rt_raster raster, int nband) {
 			/*
 				lwgeom_as_multi() only does a shallow clone internally
 				so input and output geometries may share memory
+				hence the deep clone of the output geometry for returning
+				is the only way to guarentee the memory isn't shared
 			*/
 			mpoly = lwgeom_as_multi(tmp);
 			tmp2 = lwgeom_clone_deep(mpoly);