Hello, I'm trying to get the time-varying orientation of every body in my model, after running marker-based inverse kinematics. I'm getting the data I expect, but I'm not sure my process is very efficient... My current system (using API through python scripting) is to: 1. Run the inverse kinematics ...

*** UPDATE*** I've found a solution (for anyone else interested). Creating a rotation in python scripting can be as simple as this: mat = osim.Mat33(1, 0, 0, 0, 1, 0, 0, 0, 1) rot = osim.Rotation(mat) I was then able to create my transform from the rotation and a translation vector: transform = osim...

Hi there, Using the OpenSim API through python scripting, how can I create a SimTK Rotation from a numpy array matrix? More generally - I am trying to update the transform of an IMU PhysicalOffsetFrame associated with a body in my model (so I can manually apply my own calibrations, rather than rely ...

I am also experiencing a very similar situation to Nev - same workflow which causes OpenSim 4.4 to quit unexpectedly. Just after using IMU IK.

Thank you Ayman, that's really helpful to know. I will just work out how to convert the file into the Xsens format (or create the .sto file, as you say).

Mhairi

Hi there, In the OpenSense tutorial, the possibility of supporting other IMU manufacturers was mentioned a few times. Any idea when this might be available? I'm working with Delsys Trigno IMUs. My post-graduate research will focus on validating IMUs for upper-limb movement analysis and I can see tha...