From: dejohnso@asylum.cs.utah.edu (David Johnson)
Subject: TECH: Orientation from the Polhemus
Date: Sun, 16 Aug 92 16:51:23 -0600
Organization: University of Utah CS Dept



First, thanks to all of you who sent in suggestions for getting the
Polhemus hooked up to an SGI.  It is now running nicely, except...

I am getting some strange results from orientation - it doesn't seem
to be able to tell when the sensor is in the range -90 to -180 (it
freezes at -90 then flips to +180).  And this is for all 3 axis.  I
was wondering if other people have had this problem.  

The documentation says it should be able to go from -229 to 229
degrees.  Or are most people reading in quaternions instead of just
using the default sixtuple of position and roll, pitch and yaw?

Please send me email at dejohnso@asylum.cs.utah.edu.

Thanks,
David