diff -r cd237f1936f8 -r 350c1d8bb7cc gui/graph_displayer_canvas-edge.cc
--- a/gui/graph_displayer_canvas-edge.cc	Wed Aug 03 19:10:12 2005 +0000
+++ b/gui/graph_displayer_canvas-edge.cc	Sun Aug 07 14:17:11 2005 +0000
@@ -25,7 +25,7 @@
     {
       for (EdgeIt i(mapstorage.graph); i!=INVALID; ++i)
 	{
-	  double v=abs((*actual_map)[i]);
+	  double v=fabs((*actual_map)[i]);
 	  int w;
 	  if(min==max)
 	    {