Thank you very much for your response. As a first-time user of the OpenSim API, I'm not yet clear on all the differences. I tried what you suggested, and it turns out that setValue only changes the current state, having no effect in the InverseKinematicsTool(). However, using set_default_value() and...

I attempted to use the Python API to achieve the functionality of locking certain values in the Coordinates section within OpenSim. The overall code is shown below. In Python, I first perform IK on the first 50 data points to obtain the mean values, then I lock the trunk coordinates (such as 'r_x', ...

Hello, I am new to OpenSim and SimTK and I am trying to use upper extremity dynamic model to simulate human movements and get two matrixes ( Jacobian J and muscle Jacobian Jm). The Jacobian is a matrix of partial derivates that relates small end-effector (hand) velocity V with small joint angle chan...