Contact Ellipsoid in Simbody but not Opensim?

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Evan Dooley
Posts: 25
Joined: Fri Sep 27, 2019 8:36 am

Contact Ellipsoid in Simbody but not Opensim?

Post by Evan Dooley » Mon Sep 13, 2021 7:27 am

Hello,

I am trying to implement ellipsoids in a hunt-crossley contact model. This is said to be possible in the Sherman 2011 paper.

Looking at the opensim doxygen there is no option for contact ellipsoid: https://simtk.org/api_docs/opensim/api_ ... metry.html
Image

However, there is an option looking at the doxygen for simbody: https://simtk.org/api_docs/molmodel/api ... metry.html
Image

Why are ellipsoids not available in OpenSim?

Thanks for your help,
Evan

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Carmichael Ong
Posts: 378
Joined: Fri Feb 24, 2012 11:50 am

Re: Contact Ellipsoid in Simbody but not Opensim?

Post by Carmichael Ong » Tue Sep 14, 2021 4:49 pm

A similar question was posted recently too, please see the response there: viewtopicPhpbb.php?f=91&t=13861&p=0&sta ... 7667e7435f

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