bug fixed for direct manipulation with PARALLEL_PROJECTION

["William L. Hibbard" <WHIBBARD@xxxxxxxxxxxxx>]

Direct manipulation now works with javax.media.j3d.View.PARALLEL_PROJECTION.
This fix is in the source available through the VisAD web page.
----------------------------------------------------------
Bill Hibbard, SSEC, 1225 W. Dayton St., Madison, WI  53706
whibbard@xxxxxxxxxxxxx  608-263-4427  fax: 608-263-6738
http://www.ssec.wisc.edu/~billh/vis.html
 
"kill cross-platform Java by growing the polluted Java market"
   - from an internal Microsoft planning document