[Lemon-commits] hegyi: r3192 - glemon/trunk

[Lemon SVN]

Author: hegyi
Date: Tue Feb 20 16:46:19 2007
New Revision: 3192

Modified:
   glemon/trunk/gdc-broken_edge.cc

Log:
No segmentation fault will be occured if two nodes are exactly overlap each other, AND they are connected.

Modified: glemon/trunk/gdc-broken_edge.cc
==============================================================================
--- glemon/trunk/gdc-broken_edge.cc	(original)
+++ glemon/trunk/gdc-broken_edge.cc	Tue Feb 20 16:46:19 2007
@@ -93,7 +93,10 @@
   XY unit_vector_in_dir(head-center);
   double length=sqrt( unit_vector_in_dir.normSquare() );
 
-  unit_vector_in_dir/=length;
+  if(length!=0)
+    {
+      unit_vector_in_dir/=length;
+    }
 
   // update the arrow
   drawArrow(unit_vector_in_dir);