Hello all,

I'm having some issues when clamping coordinates. When I'm running forward dynamics, the coordinates don't stay clamped and I was wondering how I would fix this.

For the model that I'm creating, I needed to create a contact mesh for a cylinder and a sphere. When I tried to load the model into OpenSim I got the following error: java.lang.RuntimeException: SimTK Exception thrown at ContactGeometry_TriangleMesh.cpp:447: Bad call to Simbody API method ContactGeo...

For my model I need an arbitrary mesh. Is there a program that I can use to create the mesh that I need and then load it in or is there a way I can do it within OpenSim?

I'm currently working on a project where two objects come into contact and need to have a contact mesh between them. I've tried using the standard contactsphere that I've seen but it doesn't seem to work. Does OpenSim allow for arbitrary contact meshes and if it does, are there examples on how to wr...

Are there any resources from Opensim on how to write an arbitrary mesh?

I'm currently working on a project that's requiring contact forces. When I looked up contact forces on OpenSim's website, I noticed that there's contact planes and contact spheres. Is it possible to obtain contact forces in other shapes such as a cylinder?

At the moment, all of the bodies within the model have weld joints except for one which has a Custom Joint. During forward simulation, as the body with the custom joint falls due to gravity, it eventually disappears and as I try to rotate the other bodies, they disappear as well. When the body with ...

For the model that I'm working on, as I change muscle parameters and object weights, I run forward simulations to determine how these changes affect the model. One issue that I've been having during forward simulation is that the model disappears and won't reappear. In order for the model to reappea...

While I was working on a model, I hit the simulate button at the top of OpenSim (green running dude). When I hit the button, the model would run for a short time but then an error would pop up. The error that I would get is: ForwardTool::run() caught exception SimTK Exception thrown at AbstractInteg...

Hello,

I've been trying to understand how to write a point constraint in opensim for the model that I'm working on but haven't found any examples of how to write one. Does anyone know of any example code that I could look at as an example?