From mark@markssun.cs.umd.edu Mon Jan 12 23:01:26 1987
Date: Mon, 19 May 86 09:53:00 edt
From: mark@markssun.cs.umd.edu (Mark Weiser)
To: don@mimsy.umd.edu
Subject: theta-menus

I think they should have a maximum radius, outside of which nothing is 
selected.  You can still return radii of selection within the max radius,
but this allows easier user deselection.
-mark