Glad you found the error!

Hi Ebenezer,

If OpenSim is installed correctly, 'getAsMat()' should work out of the box. What version of OpenSim are you using?

Best,
Nick

Hi Mughees, Glad that your problem is converging more reliably now. As for your other question: What if i want to tell the solver/optimizer that my solution should start from "Point A" then should go through a specific "Point X" and then reach at "Point B" . I know the state conditions at all three ...

Hi Sivaprasad,

That error is likely because you do not have enough time points in your data file "UpAndStopAndDown0.5s_ConstForceLoad.sto". How many rows does that file have?

Best,
Nick

Hi Andrea,

The GitHub issue is here: https://github.com/opensim-org/opensim-core/issues/3797.

Best,
Nick

Hi Andrea, I think the issue is that the 'stiffness' property is stored inside 'contact_parameters', which is not a subcomponent of ElasticFoundationForce but rather a property of it. I don't think properties nested inside other properties will work in Moco, unfortunately. I'll open a GitHub issue t...

Hi Camille,

It might be a problem with permissions on your machine. Try the following:
-Nick

Hi Asif, The changes to support Controllers in Moco were introduced after we made the OpenSim 4.5 release. You are free to build OpenSim from source (or download a pre-built artifact from GitHub Actions) if you want to test the new Controller functionality, but note that these features will guarante...

Hi Madison, Thanks for the information, but I think I see the issue now. The script you've provided is only implementing the classes that define the tracking problem. You need to instantiate an object of MotionTrackingWalking in order to actually run the problem. This file in the Moco paper repo wil...

Hi David, I'm now realizing that we do not support uploading custom geometry files. The geometry files in your model are not included in the geometry file repository in AddBiomechanics. We need a way to support uploading custom files, filing an issue for that now. For the filtering issue: I think th...