Search found 17 matches

by Ton Leenen
Tue Dec 21, 2021 6:51 am
Forum: OpenSim
Topic: Left-handed scapulothoracic model (Ajay Seth)
Replies: 0
Views: 117

Left-handed scapulothoracic model (Ajay Seth)

Hi all,

I am wondering if anyone already converted the right-handed scapulothoracic model by Ajay Seth to a left-handed model? If the conversion has not been done yet, are there any instructions to help me create the left-handed version of the model?
by Ton Leenen
Mon Dec 20, 2021 6:38 am
Forum: Symmetry of the scapulothoracic joint
Topic: Bilateral scapulothoracic joint model
Replies: 0
Views: 49

Bilateral scapulothoracic joint model

Hello everyone,

Is anybody willing to share their bilateral scapulothoracic joint model or willing to share information how to duplicatie and adjust the right-handed scapulothoracic model by Ajay Seth to a left-handed model?

Thank you very much!
by Ton Leenen
Tue Nov 30, 2021 6:18 am
Forum: OpenSim
Topic: SOLVED! IMU's not correctly placed after IMUPlacer in Python/MATLAB
Replies: 2
Views: 560

Re: SOLVED! IMU's not correctly placed after IMUPlacer in Python/MATLAB

All the Xsens DOT sensors we used are defined in the earth-fixed reference system, but when using the heading reset option in the Xsens DOT application the axes in the horizontal plane are set to zero regardless of the orientation at that moment in time (in my case the calibration pose of the partic...
by Ton Leenen
Thu Nov 18, 2021 6:56 am
Forum: OpenSim
Topic: SOLVED! IMU's not correctly placed after IMUPlacer in Python/MATLAB
Replies: 2
Views: 560

SOLVED! IMU's not correctly placed after IMUPlacer in Python/MATLAB

Hello, I'm using OpenSim 4.1 via the Python API to run the IMU OpenSense IK, but unfortunately the orientation of the IMU's on the segments of the upper extremity model are not correctly placed after using the IMUPlacer, regardless of using the 'sensor_to_opensim_rotations' and 'heading_correction' ...
by Ton Leenen
Thu Oct 08, 2020 1:29 am
Forum: OpenSim
Topic: OpenSim IMUInverseKinematicsTool with IMU data
Replies: 4
Views: 585

Re: OpenSim IMUInverseKinematicsTool with IMU data

Hi Ayman, The strangest thing is that the calibration looks successful, but when I load the orientation data in the OpenSim GUI on the calibrated model the model rotates a bit around the vertical. Ajay interpreted this as a introduced offset, which should not happen. The reason for this should be th...
by Ton Leenen
Wed Oct 07, 2020 11:09 am
Forum: OpenSim
Topic: OpenSim IMUInverseKinematicsTool with IMU data
Replies: 4
Views: 585

OpenSim IMUInverseKinematicsTool with IMU data

Dear all, Unfortunately, I receive an error when calling the function opensim.IMUInverseKinematicsTool().set_base_imu_label() and opensim.IMUInverseKinematicsTool().set_base_heading_axis() similar to the used settings when calibrating the OpenSim Model in Python by the use of the opensim.imuPlacer.s...
by Ton Leenen
Wed Jun 24, 2020 8:03 am
Forum: OpenSim
Topic: OpenSim Scapulothoracic Model Unexpected Output
Replies: 1
Views: 296

OpenSim Scapulothoracic Model Unexpected Output

I am working with the OpenSim/OpenSense in Python scripting/wrapping with the scapulothoracic model and IMU kinematics (orientations), but unfortunately the output after load, calibration is not really in line with the motion I captured with the Xsens IMU sensors. I go through the following steps to...
by Ton Leenen
Mon Jun 22, 2020 1:38 am
Forum: OpenSim
Topic: Reading Xsens DOT IMU sensor data into OpenSim via Python scripting!
Replies: 4
Views: 633

Re: Reading Xsens DOT IMU sensor data into OpenSim via Python scripting!

Hi Ayman,

Thank you for your reply! I managed to write a Python script to convert the Xsens DOT format to the OpenSense readable format and it is working quite well!

Thanks,

Greetings,

Ton
by Ton Leenen
Fri Jun 12, 2020 8:51 am
Forum: OpenSim
Topic: Reading Xsens DOT IMU sensor data into OpenSim via Python scripting!
Replies: 4
Views: 633

Reading Xsens DOT IMU sensor data into OpenSim via Python scripting!

Dear all, I am following the OpenSense - Kinematics with IMU ( https://simtk-confluence.stanford.edu:8443/display/OpenSim/OpenSense+-+Kinematics+with+IMU+Data ) tutorial/example and in Step Two: Convert IMU Data into OpenSim Format I have to read, and convert, the Xsens IMU sensor data to the OpenSe...
by Ton Leenen
Tue Jun 09, 2020 5:03 am
Forum: OpenSim
Topic: Fatal Python error (Python3 OpenSim import)
Replies: 3
Views: 330

Re: Fatal Python error (Python3 OpenSim import)

Hi Chris, Thanks you for you reply! This was indeed the problem! After spending 1.5 week trying to get OpenSim 4.1 up and running in Python I finally solved all the issues! I have OpenSim 4.1 with Python 3.7.7. running in a PyCharm Virtualenv environment! :D I was able to solve the issues due to the...