Awesome! I have made a note and will give that function a try. For completeness, my simulation was not converging because I had the max/min forces on the controllers set way too low. I opened them up to -inf to +inf and Moco quickly converged to a reasonable solution. Thanks for the tips! Best, Evan

Hello, I have not changed the joint definitions, but I think it is a model specific thing. I believe it is due to the subtalar joints still being locked in the model I was trying to simulate. Reading more on the forum this seems to cause various issues, so I tried unlocking these joints. After relea...

Hi Grace, I also am working on setting up a MocoInverse problem and have been running into issues. I got a similar error you have shown trying to put this together. Error using MocoInverse_TorqueDrive_CoordTrack_v02 (line 109) Java exception occurred: java.lang.RuntimeException: SimTK Exception thro...

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_docs/classOpenSim_1_1ContactGeometry.html https://simtk....

Hello again, I am trying to make sure that when I scale my base model to the size of each subject and update the marker positions on the subject specific models, the feet stay flat on the floor. I am sure the feet are flat on the floor in the static position (being used for scaling) as we have video...

Hello Ayman, Thanks so much. That's a great point. I was investigating the constraint methods available and can't seem to find a combination that results in reducing two rotational DoF between the foot and the ground. On doxygen ( https://simtk.org/api_docs/opensim/api_docs/classOpenSim_1_1Constrain...

Hello, I am working with the human model: FullBody_SimpleArms_Hamner2010, and I am trying to add a 6DoF joint between the each talus body and ground. I want the ankle joint to continue to exist as is. I want to use the "foot-to-floor" joint to ensure the foot is flat during scaling and output global...

Hi Ayman, Thanks for the speedy response. I reported the bug and have tried your suggestion. % handle L x = HANDLE_L.getTransformInGround(start); y = x.R; handle_L_rot = y.convertRotationToBodyFixedXYZ(); This gives me the X,Y,Z rotation angles from ground to each body, which is great. I think I nee...

Hello, I am trying to get the rotation of a body frame, either relative to the global frame, or to another body frame, using Matlab. I have been able to get the global positions of the bodies, and convert them to Matlab arrays, using this method: %% get global body position hand_L_pos = osimVec3ToAr...

Hello Ayman, I have tried to finalize the connections on the model and the force set: %% finalize connections model.finalizeConnections(); forceSet.finalizeFromProperties(); And I still get the same result when I print the file: %% Print file to use in RRA forceSet.print('checkForSockets.xml'); <Poi...