Thanks a lot Ross and Nick,
These are great tips and very helpful.
Pouya

Thanks a lot Ross for sharing your model. It's a huge help. I have a more general question: how do you decide about your contact model in general? Could you please point to a good reference that provides details about this? i.e. how the number, location, radius of contact spheres are selected and ho...

Thanks Nick. I have difficulty getting SmoothSphereHalfSpaceForce() to work in MATLAB. I define a SmoothSphereHalfSpaceForce object, but I am not sure what method to use to add contact geometry to it. I tried to use for example setContactSphereBody() method, but it is not available. I can only set t...

Update:
Instead of tracking the states from the inverse kinematics solution, I solved a marker tracking problem, and this works very well.

But I am still not sure how contact modelling works in MocoTrack. Hope someone can share some insights.

Pouya

Thanks Ross for the response. I am a bit confused. MocoTrack asks for a GRF xml file as one of its inputs. But in the Moco Traking documentation is clearly explained that the tracking happens for the states/markers (but nothing is said about the GRF). Why does it ask for the GRF then? The other thin...

Hi everyone, I am trying to do a tracking simulation using mocotrack. For the tracking reference, I am using the joint angles that I obtained from OpenSim invers kinematics solution; the motion capture data belongs to a unilateral transtibial amputee. As the musculuskeletal model, I am also using a ...

Hello, I am trying to run a CMC simulation with a unilateral transtibial model. To reduce the residual, as suggested by opensim documentation, first I run the RRA, where all the joints are actuated with reserves. I started with the xml setting files for RRA of model 2354 distributed with opensim 4.1...