Length of HalfSphereContact

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Samane Amini
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Length of HalfSphereContact

Post by Samane Amini » Mon Nov 02, 2020 2:28 am

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Hi guys

as you see the picture, I simulate GRF contact by a sphere contact and half sphere contact as a platform base. due to low length of platform, body fail when walking on plate. I was wondering if How increase platform length?

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

Re: Length of HalfSphereContact

Post by Carmichael Ong » Mon Nov 09, 2020 12:24 pm

OpenSim doesn't have a HalfSphereContact class, so I'm assuming instead you are using a ContactHalfSpace (https://simtk.org/api_docs/opensim/api_ ... Space.html).

A half space by definition should be infinitely large. This visualization is likely only limited to the platform's geometry visualization file. You could double check this by translating the model off of the platform and doing a short forward simulation of a drop to see that it's working.

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