--- a/python/extrapolation.py	Sun Jul 29 04:09:43 2012 -0400
+++ b/python/extrapolation.py	Thu Aug 02 05:35:57 2012 -0400
@@ -30,8 +30,8 @@
     def getPredictedSpeeds(self):
         return [so.norm for so in self.predictedSpeedOrientations.values()]
 
-    def draw(self, options = '', withOrigin = False, **kwargs):
-        self.getPredictedTrajectory().draw(options, withOrigin, **kwargs)
+    def draw(self, options = '', withOrigin = False, timeStep = 1, **kwargs):
+        self.getPredictedTrajectory().draw(options, withOrigin, timeStep, **kwargs)
 
 class ExtrapolatedTrajectoryConstant(ExtrapolatedTrajectory):
     '''Extrapolated trajectory at constant speed or acceleration