Hi, Ayman! Looking at this picture https://simtk-confluence.stanford.edu:8443/display/OpenSim33/Tutorial+3+-+Scaling%2C+Inverse+Kinematics%2C+and+Inverse+Dynamics?preview=/28777067/28777076/worddav18beee95e9328969b6f5ee05a6c736f0.png I thought that at least angular velocity and acceleration may be c...

Oh, and another thing I just tried is adding the following test function into file testIK.cpp and running it: void testAccelerationsFromInverseKinematicsSolverWithOrientation() { Model model("subject01_simbody.osim"); SimTK::State& s0 = model.initSystem(); MarkersReference mRefs{}; SimTK::Array_<Coo...

Hi guys! I've reproduced OpenSense pipeline in real-time and get a decent skeleton motion (visualizer shows perfectly valid skeleton movements) from a set of IMU sensors by using IK solver in such a way: ... _solver = std::make_unique<OpenSim::InverseKinematicsSolver>(_model, mrefs, refs, coords, Si...

Thanks a lot! I'll read the paper and will get back on forum If I'll have any questions left.

Hi guys! We have a full-body suit with 14 IMU sensors and a bunch of electrodes for measuring EMG from major muscle groups. Currently, we get decent motion data by passing IMU readings into InverseKinematicsSolver() and looking forward to using EMG capabilities. So the question is what are typical u...

Thank for a quick reply, Ayman! So if I understood correctly calling m_model.updMultibodySystem().realizeModel(state); after making changes to a model should help, but it doesn't. Also maybe there is some more "right" path to follow here in order to dynamically visualize flashing spheres in OpenSim?...

Hi! I have a loop in which I'd like to change a color of a geometry (after some conditions are met) and show it in visualizer. So I have something like this: while (true) { ... if (some condition) { auto& body = m_model.updBodySet().get("my_fancy_body"); auto& offsetFrame = body.updComponent<Physica...

Sure! If I succeed in creating desired model I'll be happy to share it here or, maybe, create a working example from it and put it in opensim-core sandbox.

Thanks for a prompt reply, James!
Indeed it does sounds interesting - signed up for the announcements!

And going back to my 2 original questions, does it sounds reasonable at all?

Hi there! I'm working on an IMU-based motion capture system for rehabilitation and investigating whether I can use Simbody/OpenSim to improve current system. Current system is basically a mapping of 10 IMU quaternion orientations directly to a very simple human model in Unity. It suffers from usual ...