Walking Simulation with only static file

OpenSim Moco is a software toolkit to solve optimal control problems with musculoskeletal models defined in OpenSim using the direct collocation method.
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Mritula Chandrasekaran
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Walking Simulation with only static file

Post by Mritula Chandrasekaran » Tue Apr 14, 2020 4:56 pm

Hi,
I am having static files ( trc files) with which I have scaled my model. I need to use this model to simulate walking. I dont have any grfs, Is it possible to do this simulation in MOCO with trc files only? If yes, how can I?

Kindly let me know.

Thanks
Mritula

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Nicholas Bianco
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Re: Walking Simulation with only static file

Post by Nicholas Bianco » Wed Apr 15, 2020 11:56 am

Hi Mritula,

You could try tracking marker data in a problem using a model with foot-ground contact to predict GRFs. We've started to work on this problem internally to update exampleMocoTrack, but haven't gotten it to work well yet. You might be better off tracking coordinates computed from in MocoTrack; we've had more success with this problem formulation.

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Mritula Chandrasekaran
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Re: Walking Simulation with only static file

Post by Mritula Chandrasekaran » Wed Apr 15, 2020 1:57 pm

Hi Nick,
Thanks for your response, that adds hope! Would you mind elaborating me on the statement "You might be better off tracking coordinates computed from in MocoTrack; we've had more success with this problem formulation.". Thank you!


Regards,
Mritula

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Nicholas Bianco
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Re: Walking Simulation with only static file

Post by Nicholas Bianco » Thu Apr 16, 2020 4:10 pm

Hi Mritula,

Apologies, that sentence should have been "You might be better off tracking coordinates computed from InverseKinematics in MocoTrack...".

Hope that's clear.
-Nick

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Mritula Chandrasekaran
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Re: Walking Simulation with only static file

Post by Mritula Chandrasekaran » Thu Apr 16, 2020 11:36 pm

Thanks Nick. I am working on it now.


Regards,
Mritula

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