From f358db54fdd6cb8fbabb9fc42c9d222dd5f4c2bc Mon Sep 17 00:00:00 2001
From: malomo <luigi.malomo@isti.cnr.it>
Date: Tue, 14 Feb 2012 12:02:43 +0000
Subject: [PATCH] Added a quick check for callback presence (avoid crash if cb
 function is not provided)

---
 vcg/complex/algorithms/create/resampler.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vcg/complex/algorithms/create/resampler.h b/vcg/complex/algorithms/create/resampler.h
index 5b094f4f..a7f599ed 100644
--- a/vcg/complex/algorithms/create/resampler.h
+++ b/vcg/complex/algorithms/create/resampler.h
@@ -340,7 +340,7 @@ template <class OLD_MESH_TYPE,class NEW_MESH_TYPE, class FLT, class DISTFUNCTOR
 			extractor.Initialize();
       for (int j=0; j<=this->siz.Y(); j++)
 			{
-				cb((100*j)/this->siz.Y(),"Marching ");
+                if (cb) cb((100*j)/this->siz.Y(),"Marching ");
 				ProcessSlice<EXTRACTOR_TYPE>(extractor);//find cells where there is the isosurface and examine it
         NextSlice();
 			}