I would like to know the angle of the track a moving spot overtime in order to check the change in direction. Would it be possible? I have the track made in track manager.
You have different processors to analyze motion / direction. You have the Track Flow which give you a Polar Speed, but i think the most useful is the Motion Profiler which can give you linearity and average distance along X/Y axis. Using that Motion Profiler combined with the Track Clipper (to clip track on a given number of frame) you can get mean movement on a limited timepart.
That should definitely provide you useful information to do your final quantification.