model for user manipulation of complex shapes in displays

The latest source jar file on the VisAD ftp server includes a
new file visad/bom/TrackManipulation.java that enables users
to manipulate complex storm track shapes in a display.

While this particular shape probably has limited interest, 
TrackManipulation.java can serve as a useful model for people 
who want to add manipulation of other complex shapes to their 
programs.  

TrackManipulation.java draws in graphics coordinates by
constructing a VisADGeometryArray for Shape.  A program can
also draw in data coordinates by constructing a UnionSet of
Gridded2DSets.

Cheers,
Bill
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
hibbard@xxxxxxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html