failed SIMM to Opensim conversion

Provide easy-to-use, extensible software for modeling, simulating, controlling, and analyzing the neuromusculoskeletal system.
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Kyle Chadwick
Posts: 5
Joined: Mon Sep 24, 2012 10:09 am

failed SIMM to Opensim conversion

Post by Kyle Chadwick » Thu Jul 19, 2018 9:59 am

Trying to convert Deformable Femur Model https://simtk.org/projects/femur-model from SIMM to Opensim and receive this error:
Creation of OpenSim model from C:\Users\kchadwick\Desktop\DeformableFemur\deformFemur2002.jnt failed.
Executing [simmToOpenSim -j "C:\Users\kchadwick\Desktop\DeformableFemur\deformFemur2002.jnt" -m "C:\Users\kchadwick\Desktop\DeformableFemur\deformFemur2002.msl" -g Geometry -x "deformFemur2002_0.osim"]
simmToOpenSim, version 2.0.0, build date 09:22:35 Feb 5 2010
Read joint file C:\Users\kchadwick\Desktop\DeformableFemur\deformFemur2002.jnt
Joint walker_knee cannot be converted to OpenSim because it contains a [function] translation after a rotation.
This looks pretty much exactly like this bug report from 2011:
1546 https://simtk.org/tracker/index.php?fun ... 1&atid=322
but I don't see any resolution. Apparently it worked in 1.9.1, should I just install that old version to do the conversion?

Thanks,
Kyle Chadwick

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Thomas Uchida
Posts: 1793
Joined: Wed May 16, 2012 11:40 am

Re: failed SIMM to Opensim conversion

Post by Thomas Uchida » Fri Jul 20, 2018 12:22 pm

should I just install that old version to do the conversion?
That sounds like a good idea. Not sure about this particular converter or model, but some very old models must be updated using an intermediate version of OpenSim before being opened in 3.3.

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