From 486475d4a3824e41b534ac5b906fa63f49e5423e Mon Sep 17 00:00:00 2001
From: cignoni <paolo.cignoni@isti.cnr.it>
Date: Sat, 5 May 2012 14:55:50 +0000
Subject: [PATCH] added another assert to histogram to avoid trash result...

---
 vcg/math/histogram.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/vcg/math/histogram.h b/vcg/math/histogram.h
index 4130c10e..f98fee45 100644
--- a/vcg/math/histogram.h
+++ b/vcg/math/histogram.h
@@ -165,6 +165,7 @@ public:
 	
 	ScalarType Percentile(ScalarType perc)
 	{
+	  assert(!vec.empty());
 	  assert(perc>=0 && perc<=1);
 		DirtyCheck();
 		int index = vec.size() *perc -1;