forums.naturalpoint.com

Hello,
using Tracking Tool, I can correctly define and track a trackable moving free in the 3D space. But if I mount the same trackable on a stepper motor and let it turn slowly, it happens that in some specific points, the Tracking Tool (and also the function TT_TrackableLocation) outputs uncorrect values (Euler angles or Quaternion) since the orientation of the trackable flips upside down (only the orientation frame, not the trackable itself). This seems absolutely irrational to me.
Any suggestion to solve this problem?
Thank you for your help.

bruno

Bruno -

Could you send the .cal, .tim, and .rgb files to support@naturalpoint.com? I'd like to have our developer take a look at this when he gets back into the office on Friday.

I have the same problem in exactly the same scenario: Rotating with a turntable in azimuth (Yaw).

If the motion is captured properly and the markers appear in all frames, I would recommend checking your quaternion conversion method as stated in the other forum thread.