Hi! I'm planning on using Matlab and OpenSim together to test new control algorithms. I would like to know if the OpenSim API allows the following: I want to have a control algorithm in Matlab sending different control inputs (muscle excitations for example) with each timestep to OpenSim (forward dy...

<t>Hi!<br/> <br/> I'm trying to estimate muscle activations from my experiments and in the RRA part I keep getting this error:<br/> <br/> Exception:<br/> ArrayPtrs.get: Array index out of bounds.<br/> <br/> Does anyone know what this means?<br/> <br/> About my model/experiment:<br/> I acquired the v...

I am also getting that same error whenever I try to run the RRA algorith. Last time it was at 20% when I had the error. I'm running OpenSim on Win7 x86 Laptop. My Java version is Java SE 6 Update 23. I'm gonna update it and run it again.

I was looking at the *.mot files and found that you can prescribe joint angle and do the inverse dynamics afterwards.

<t>Hi!<br/> <br/> I have acquired kinematic data from inertial sensing, in this case ankle angle and I would like to know if OpenSim allows me to prescribe these angles (instead of generalized coordinates) to a model and do the inverse dynamics to get internal forces and muscle activations. There we...