Demo_SinglePerson in OpenSim 4.5 - Avatar doesn't move

[Bruce3456]

Your OS

Windows

Your Python version

3.12.13

What is your library version?

pose2sim 0.10.45

Your problem

Sorry for another question...

We are trying to use the Demo_SinglePerson to display in OpenSim;

We followed the following instructions:

Visualize results:

File > Open Model: Open your scaled .osim model in the kinematics folder.
File > Load Motion: Open your joint angle .mot file in the kinematics folder.
File > Preview Experimental Data: Open your 3D marker .trc file in the pose-3d folder.

we have loaded the following files (messages window)
Loaded model Pose2Sim_scaled from file D:\miniconda3\envs\Pose2Sim\Lib\site-packages\Pose2Sim\Demo_SinglePerson\kinematics\Demo_SinglePerson_1-97_filt_butterworth_LSTM.osim
Storage: read data file = D:\miniconda3\envs\Pose2Sim\Lib\site-packages\Pose2Sim\Demo_SinglePerson\kinematics\Demo_SinglePerson_1-97_filt_butterworth_LSTM.mot (nr=96 nc=63)
Loaded marker file D:\miniconda3\envs\Pose2Sim\Lib\site-packages\Pose2Sim\Demo_SinglePerson\pose-3d\Demo_SinglePerson_1-97.trc (22 markers, 97 frames)

There are some dots shown that move, but the skeleton doesn't moved. AI says I should opne the IK tool in OpenSim, but that option is greyed out.

Thank you so much for any hint

[davidpagnon]

It looks like the skeleton (osim) and the markers (trc) were correctly loaded, but not the skeleton animation (mot). If you manage to make it run, can you tell me if you think there is any way to make it clearer?

[Bruce3456]

Thank you David
What seams to make the skeleton to move is to:
File > Open Model: Open your scaled .osim model in the kinematics folder. (Demo_SinglePerson\kinematics)
Load the IK_Setup_Pose2Sim_Body25.xml from OpenSim_Setup
.. it throws an error about S00_P00_T01_BalancingTrial_0-100_filt_butterworth-trc somewhere in the subtree of the OpenSim_Setup directory.
Then
File > Load Motion: Open your joint angle .mot file in the kinematics folder. (Demo_SinglePerson\kinematics)
Is this how it is supposed to work?

Thank you so much for your help!

Uwe

[davidpagnon]

No, you are supposed to load the .osim model, and then the .mot motion file.

The .xml file should not be loaded, unless you want to run a custom inverse kinematic pipeline.

[Bruce3456]

Hmm... any hint how I could load the .mot file in a different way to get it working?
Thank you!

[davidpagnon]

Sorry, I don't understand the problem. Have you tried this?
https://perfanalytics.github.io/pose2sim/#within-opensim-gui

What error do you get?

[davidpagnon]

Closing this issue for now, feel free to reopen it if needed!