I am seeking advice on how to portray just one or a few objects (in my case they are fish) in proximity to a given mouse click using the MASON GUI.
Suppose many objects are held in a Continuous2D and displayed using a ContinuousPortrayal2D.  I would like for none of the objects to be displayed until the user clicks a region of the display, then one or a few objects are drawn that are in close proximity, perhaps within the bucket covered by the requested region.
Could anyone suggest useful Classes or a general approach for tackling this problem?
Any help is much appreciated.
Bill Harford
PhD Candidate
Department of Marine Biology & Fisheries
Rosenstiel School of Marine & Atmospheric Science
University of Miami
4600 Rickenbacker Cswy, Miami FL 33149
Office: 305 421-4611