This sample application shows how to use dynamic shapes to update objects on the map in real-time.  The example below simulates a vehicle tracking application using real-time GPS coordinates. The red area in the middle of the app symbolizes a plume reacting to different wind conditions.  A spatial query is done against the plume to see if the truck is inside the plume or not.  For demonstration purposes both the GPS coordinates and wind direction is read from a text file.

To see this example in action click the Auto Refresh or Manual Refresh buttons to see the Truck move across the map and in and out of the plume.