--- a/python/extrapolation.py	Thu Jul 26 03:54:41 2012 -0400
+++ b/python/extrapolation.py	Thu Jul 26 19:46:36 2012 -0400
@@ -167,16 +167,18 @@
         saveSafetyPoints(outCZ, obj1.num, obj2.num, i, crossingZones[i])
 
         if debug:
-            from matplotlib.pyplot import figure, axis
+            from matplotlib.pyplot import figure, axis, title
             figure()
             obj1.draw('r')
             obj2.draw('b')
             for et in extrapolatedTrajectories1:
                 et.predictPosition(timeHorizon)
                 et.draw('rx')
+                
             for et in extrapolatedTrajectories2:
                 et.predictPosition(timeHorizon)
                 et.draw('bx')
+            title('instant {0}'.format(i))
             axis('equal')