Identifying Markers

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nuLIMS
Posts: 4
Joined: Mon Jul 16, 2012 2:16 pm

Identifying Markers

Post by nuLIMS » Mon Jul 16, 2012 2:21 pm

I am working on a project for which we need to determine the shoulder and elbow angles of a subject in real time for feedback control. Is it possible to custom define the marker IDs? For example, if I want to know where a specific pointA is, can I define a marker as pointA such that I can easily use its data in code?

Thanks for your help.

NaturalPoint - Mike
Posts: 1896
Joined: Tue Feb 01, 2011 8:41 am
Location: Corvallis, OR

Re: Identifying Markers

Post by NaturalPoint - Mike » Mon Jul 16, 2012 3:44 pm

Unfortunately, no. You can define multiple markers as a rigid body, however, and get either the centroid position or individual RB marker position from Tracking Tools as a fixed name, though.

nuLIMS
Posts: 4
Joined: Mon Jul 16, 2012 2:16 pm

Re: Identifying Markers

Post by nuLIMS » Tue Jul 17, 2012 9:06 am

Thanks for your response Mike. Just so I'm sure I understand, I can name the markers that compose the rigid body? And if that is correct, how exactly would I do that? Thank you

NaturalPoint - Mike
Posts: 1896
Joined: Tue Feb 01, 2011 8:41 am
Location: Corvallis, OR

Re: Identifying Markers

Post by NaturalPoint - Mike » Tue Jul 17, 2012 10:19 am

The names aren't assignable, but they are static. You could create a rigid body called "shoulder" and get either the centroid for shoulder or shoulder 1, shoulder 2, shoulder 3, et. cetera.

nuLIMS
Posts: 4
Joined: Mon Jul 16, 2012 2:16 pm

Re: Identifying Markers

Post by nuLIMS » Tue Jul 17, 2012 10:27 am

Thanks Mike.

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