From: alpha!brassaer@uunet.uu.net (Bruno Rassaerts)
Subject: TECH: Fastrak.
Date: 5 Jan 1996 11:42:29 GMT
Message-ID: <4cj2r5$or2@vivaldi.belnet.be>
Organization: BELNET (DWTC/SSTC)


From: alpha!brassaer@uunet.uu.net (Bruno Rassaerts)

Hi,

I'm currently working on a driver for a Fastrak tracking
device. Everything seems to work properly but when the heading of the
receiver changes, the pitch and roll change too. I am 90% sure that
this is not my wrong-doing. The xyz are received correctly and the hpr
are processed the same way.

The only thing I can think of is that I forgot something in the
initialisation of the Fastrak. During the initialisation I do a reset,
set the hemisphere, set the attitude filter and position filter, and
kick the tracker in continuous mode.

I even checked the raw data that I receive from the tracker and the
roll and pitch change on this level.

Suggestion,
Bruno Rassaerts
Expertisecentrum Digitale Media
 - Wetenschapspark 2 - 3590 Diepenbeek - BELGIUM
brassaer@alpha.luc.ac.be