Hi Nick, many thanks for getting back to mem and apologies if it took me a long time to pick this back up. So, just to give you a better idea of what I am doing: I am prescribing the ground reaction forces via the ModOpAddExternalLoads method, providing a an .xml file that directs to a .mot file tha...

Hi all, I have a questiong regarding Contact Geometry parameter optimisation using the SmoothSphereHalfSpaceForce. I was wondering if a MocoContactTrackingGoal is required to optimise the contact parameters (ie stiffness and damping) in a MocoStudy ? At the moment, I am trying to run a contact param...

Hi Sherm, many thanks for getting back to me and apologies for my slow reply. The main reason why I was playing around with the GeneralContactSubsystem is because I saw that implemented in the HuntCrossleyForce source code. Furthermore, I liked the getContacts method that I could potentially use to ...

Hi all, I have posted the following post on the OpenSim forum, before realising that this migh be the appropriate forum: I am trying to write a custom HuntCrossleyForce class that can potentially output the location of the different points of contact between 2 ContactGeometry objects. I have seen in...

Hi all, I have a Simbody question: I am trying to write a custom HuntCrossleyForce class that can potentially output the location of the different points of contact between 2 ContactGeometry objects. I have seen in the Simbody implementation of the HuntCrossleyForce (https://github.com/simbody/simbo...

Hi Nick,

many thanks for sharing it.

Best wishes,
Andrea

Hi Tom, many thanks for sharing the API example. The example is very similar to the code I had written. I implemented the differences that were there, hoping that I made a mistake, but I get the same error: OpenSim::ConnecteeNotSpecified Maybe it's related to how I built the environment? All the bes...

Hi all, I have been trying to implement some custom classes using the cpp API. As a starting point, I am trying to do the "build_simple_arm_model.py" example in cpp. I was having some issue with adding components (ie bodies, joints, etc.) to the model, but I solved those using the advice that I foun...

Hi Nick,

many thanks for letting me know.

If you could please share the link to the GitHub issue once you create it, that'd be very appreciated. I can keep up with the developments in that case.

All the best,
Andrea

Hi all, I have been trying to solve a tracking problem as a MocoStudy problem. In doing so, I am wanting to optimise the Elastic Foundation Force parameters that I have created between 2 contact geometries. However, I have met an issue that I haven't figured out yet and I was hoping to get some advi...