Hi, I am using opensim4.2 to do some gait simulations. I collected IMU data by Xsens, and I'm trying to be consistent with what's in the example when I do the experiment. Besides, I have run my data in the opensim4.2 sucessfully. However, the IK result is inaccurate. I think it may be related to the...

Thank you for your reply :) I don't seem to have made the above mistakes I used the file in the example, each degree of freedom has a residual actuator, and the range in the control constraints file is set to be large, but it still fails. I think if the muscle force doesn't produce enough accelerati...

hello: when i run the CMC tool,the follow errors always occur: CMC.computeControls: t = 0.03 CMC::computeControls WARNING- small force range for semimem_r (0 to 0) SimTK Exception thrown at interiorpointoptimizer.cpp:264: Optimizer failed: Ipopt: Infeasible problem detected (status 2) OPTIMIZATION F...

thank a lot,wehave solved this problem by aother way.

hi everyone
i am a new user to opensim.when i use the c3dexport.m which is provided by opensim,it always has the error below:
error c3dExport (line 35)
c3d = osimC3D(c3dpath,1);
in addition ,we use the kistler forceplate,Is this related to errors?
thank you very much