patches for geomview, mathoogl, pssnap

[fowler]

Thanks for the note & patches.  I got rid of the call to 'rectclip' in
pssnap - the new version is in the ftp directory.  The color problem
may take a bit longer to resolve.  As far as I can tell, colors work
as long as the color is part of the object itself.  If the color was
added by changing the object's appearance in Geomview (eg by changing
the face color using the appearance panel) you are right that the
color information is lost.  I'll try to fix this as soon as possible.
-Celeste

Celeste Fowler			email:  fowler at geom.umn.edu
The Geometry Center		phone:  ((555) 555-5555
1300 South Second Street
Minneapolis, MN  55454