simtk.org • Marker size

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Marker size

Posted: Wed Jul 30, 2014 6:40 pm

by kaewing

Hi,

Just wondering how important it is to have the correct marker size specified in the GUI. I am using 14mm markers, and I believe the default value for OpenSim is 1.0. Is this in cm or just an arbitrary number? Does it refer to the radius or diameter?

Thanks!
Katie

Re: Marker size

Posted: Wed Jul 30, 2014 8:16 pm

by jimmy

Hi Katie,

'Experimental Marker Size' and 'Marker Display Radius' are for display purposes. IK will track a point specified. Your Mocap system needs the marker size to calculate the centroid of a sphere. OpenSim just requires that point.

Cheers,
-james