From: Pierre duPont Subject: Re: TECH: [Q] how to fix the Polhemus data distortion Date: Thu, 28 Dec 1995 23:15:39 -0500 --------- From: Terry Wolfe >I am also having problems with the Polhemus tracking. In my case the >world has a 10 degree tilt. I have tried to change the physical >location of all the components, but the tilt comes and goes without >any obvious reason...... Terry - I saw your query, and thought I'd reply, although I don't have the answer yet. I've come across this problem a few times in the past. Remember that the tracker inside the ProVision 100 is a standard Polhemus Fastrak, so you've got to consider the magnetic environment in which you are using the system. Can you describe the physical layout of your setup? (Maybe we should take this off-line?) In particular, make sure that your source stand (with the Fastrak source on it) is not itself metal, and make sure that it stands a few feet away (in all dimensions) from any serious metal objects, particularly TVs and computers. I'll try to get a better response to you in a few days, but our offices are closed through New Years at this point, so it'll be mid-week, I'm afraid. Hang in there..... - Pierre duPont Marketing Director, Division Limited