I would also recommend that script, I am using it to prescribe functions and it seems to work.

BJ, We are doing similar type things here at OSU. I am not certain this will get you where you need to go, but you can update positions and velocities of a state vector using these calls: osimState.updQ().set(i-1,positions(i)); osimState.updU().set(i-1,velocities(i)); this is after you have realized...

It also appears that if instead of using ExternalLoads(XMLfile) I manually set up loads using grfR = ExternalForce(), setting properties of the force, then using addForce(grfR), then the ID solver recognizes these forces. This may be a workaround, but I would like to better understand the ExternalLo...

Hello, I am using the opensim api to run cmc-like forward simulations. As such I am using the InverseDynamicsSolver() call from the opensim api calls through matlab. I also am applying GRF using the ExternalLoads() command. However, the application or not of external loads does not affect the genera...

All, I am a little confused as to what the equilibrate muscles call accomplishes. I am using API calls through matlab, when invoking equilibrate mucles, I vaguely understand that it is setting up some consistency at a specific state for the muscles, but I don't really understand fully. Can someone p...

I have a very perplexing problem I am dealing with while trying to run some Matlab Scripts using many of the OpenSim API functions. I am running forward simulations based on the DynamicWalker script using the plant functions. My script has been running fine, but then started crashing matlab after 5-...

I was wondering if there have been any changes to opensim that may now allow for inputting accelerations into static optimization, or if there is some other workaround for wanting to compute muscle excitations based on desired accelerations.

Joe