Hi Albert, We built and tested das3driver.m with OpenSim 3.3, not OpenSim 4.0. Have you tried opening das3.osim in the OpenSim 4.0 GUI? I haven't had a chance to try it myself, but it is possible that the model doesn't work in the latest OpenSim release. Keep in mind that you don't need OpenSim to r...

Hello Albert,

Which versions of OpenSim and Matlab are you using?

Have you tried running any of the tests in das3test.m? For example, if you run
das3test('vis')
can you see a stick figure of the model?

Best wishes,
Dimitra

Hi Mickael, What do you mean by surprising? The bone meshes are definitely approximate, as we used existing bone files and placed them in about the right positions. The joint centres and all other anatomical data are from cadaver studies performed by Klein-Breteler et al. (J of Biomech, 32(11), 1191...

Thank you very much Chris!

Hello, I was wondering if you could help me with the API visualizer. I have used it through the Matlab API before, but I now need it in C++ and I can't get it to work... Here are the relevant steps in Matlab: osimModel = Model('my_model.osim'); osimModel.setUseVisualizer(true); state = osimModel.ini...

Dear Mariam, The Dynamic Arm Simulator cannot be scaled currently. This model is only used for forward dynamic simulations, is that what you're interested in doing with your subject? If you give me a bit more information about your project, I can direct you to the most appropriate upper limb model. ...

Dear Hafizur, We built the DAS for forward dynamic simulations, which we run in Matlab, and we are just using the OpenSim model to visualize the results (and for some pre-processing). We do not use the OpenSim model for inverse kinematic or dynamic simulations, because it does not include a model of...

Hi Eduardo,

I just uploaded version 2 of the code, that includes both 32 and 64-bit binaries. Since you might be the first user of the new release, please let me know if you have any problems or find any bugs!

Best wishes,
Dimitra

Hello,

We do not recommend using the OpenSim model with CMC. You can run forward dynamic simulations via the Matlab code provided, and use the OpenSim model to visualize the simulation results.

See also the following topic:
https://simtk.org/forums/viewtopic.php?f=322&t=5079

Hello, You do not need to to use the GUI to set the muscle excitations, it is just provided as an example. As long as they are between 0 and 1, the muscle excitations could be processed recorded EMG, outputs of neural networks or anything else you want. For an example simulation that does not use th...