From: dither@vms.macc.wisc.edu (Dennis Adams)
Subject: Re: 6-D Gyroscopic mouse announced
Date:  3 DEC 91 22:12:08    
Organization:  University of Wisconsin Academic Computing Center



In article <1991Dec2.154155.21274@ms.uky.edu>, sean@ms.uky.edu (Sean Casey) 
writes...

>6D?
> 
>Three axes of movement, three axes of rotation? Does this mouse do
>this?

No.  According to the literature I have from Gyration, it provides three
axes (rotation).  It is up to the application to decide to use this for
rotation or (rather non-intuitive) translation.  There are switches that
could be used to toggle or set modes (Five total, one of which senses
when it is sitting on your desk).  It is not clear how it acts as a 2D
mouse when it is on the desk.  Also, it is limited in two or three of the
axes -- if you move past about 80 degrees in pitch (and perhaps roll) the
gyros gimbal-lock and need to be reset (15 seconds).  Yaw does not have
this problem.

---Dennis Adams