I have a data set consisting of sets of polylines which reflect movement of individual organisms in my sample within their habitat each day. I am trying to create an animation which cycles through the days, displaying only the movement for one day at a time.
When I try to do this in ArcGIS10, it adds the lines from each day onto a map containing the lines from all previous days. How can I get the previous days' lines to disappear when the time slider moves to the next day?



