From: german@sin.cgrg.ohio-state.edu (German Bauer)
Subject: research on CAD specific interaction devices
Date: Thu, 2 Jan 1992 17:50:06 GMT
Message-ID: <1992Jan2.175006.407@osc.edu>
Organization: OSU, Advanced Computing Center for Arts & Design



Subject: CAD-specific interaction devices

I am doing research on improving the usability of the devices
interfacing the practitioner (product designer) with a CAD
workspace. I am especially looking at:

	-How to navigate in 3D-space on a 2-D screen 
		(that is how to determine viewpoint and center of focus)
	-How to navigate within object hierarchies (e.g. vertices, edges,
	 surfaces etc)
	-How to navigate within hierarchies of coordinate sysytems (e.g
	 world coordinate systems vs user defined local coordinate systems)

My question: Is there any research done out there, that touches               
one of those areas? Anything helps and is greatly appreciated. (I need it
for my thesis!)

German Bauer (german@cgrg.ohio-state.edu)