Hello,
I was wondering if there is a way to output the joint center locations that OpenSim uses when performing inverse kinematics?
Thank you,
Duncan Lee
Search found 24 matches
- Wed Jul 03, 2024 12:24 pm
- Forum: OpenSim
- Topic: OpenSim IK Joint Locations
- Replies: 0
- Views: 164
- Mon Jul 01, 2024 3:43 pm
- Forum: AddBiomechanics
- Topic: Output GRF files from ID do not contain moments
- Replies: 5
- Views: 658
Re: Output GRF files from ID do not contain moments
Hi Nicholas, I was wondering if you have any insights or suggestions on what to do about this? Do you know if it is successfully using the moments in ID given the outputs? If it has to do with the format of my input file I can try different formatting. Also, is there any way to get the calculated jo...
- Thu Jun 27, 2024 5:38 pm
- Forum: AddBiomechanics
- Topic: Limb Center of Mass during subject scaling
- Replies: 1
- Views: 282
Limb Center of Mass during subject scaling
Hello, I was wondering whether AddBiomechanics takes into account limb center of mass position in the subject model during subject scaling. I have noticed that in limb local coordinates, the position coordinates of the COM do not change between the unscaled model and the scaled model. For example, t...
- Wed Jun 26, 2024 2:35 pm
- Forum: AddBiomechanics
- Topic: Output GRF files from ID do not contain moments
- Replies: 5
- Views: 658
Re: Output GRF files from ID do not contain moments
Hi Nicholas,
The original GRF file is too large but I have attached an example portion. All the data is structured the same way.
Thanks,
Duncan
The original GRF file is too large but I have attached an example portion. All the data is structured the same way.
Thanks,
Duncan
- Tue Jun 25, 2024 9:14 am
- Forum: AddBiomechanics
- Topic: Output GRF files from ID do not contain moments
- Replies: 5
- Views: 658
Re: Output GRF files from ID do not contain moments
Hi Nicholas,
In the ID output GRF file I am getting, the GRFs and COPs are populated but the moment columns are not. I have attached an example file.
Thanks,
Duncan
In the ID output GRF file I am getting, the GRFs and COPs are populated but the moment columns are not. I have attached an example file.
Thanks,
Duncan
- Mon Jun 17, 2024 1:29 pm
- Forum: AddBiomechanics
- Topic: Output GRF files from ID do not contain moments
- Replies: 5
- Views: 658
Output GRF files from ID do not contain moments
Hello,
I noticed that when I look at the ground reaction force output files from inverse dynamics they do not contain moments, even though my input files do. Does this mean that AddBiomechanics is not using the moments for inverse dynamics?
I noticed that when I look at the ground reaction force output files from inverse dynamics they do not contain moments, even though my input files do. Does this mean that AddBiomechanics is not using the moments for inverse dynamics?
- Wed May 15, 2024 7:43 am
- Forum: OpenSim
- Topic: Problem loading TRC
- Replies: 1
- Views: 453
Re: Problem loading TRC
It seems the .trc files need to be Version 4 not Version 3
- Tue May 14, 2024 2:08 pm
- Forum: OpenSim
- Topic: Problem loading TRC
- Replies: 1
- Views: 453
Problem loading TRC
Hello,
I am having a problem trying to run IK in OpenSim 4.5. The error is: "Number of workunits cannot be negative." How can I correct that?
Thank you,
Duncan Lee
I am having a problem trying to run IK in OpenSim 4.5. The error is: "Number of workunits cannot be negative." How can I correct that?
Thank you,
Duncan Lee
- Tue May 14, 2024 2:03 pm
- Forum: OpenSim
- Topic: Force Inverse Kinematics to be in Radians
- Replies: 1
- Views: 720
Force Inverse Kinematics to be in Radians
Hello, I was wondering if there is anyway to force IK in OpenSim to be in radians? Right now it is in degrees and I'm not sure how to change it. Also there seems to be a bug in which the GUI does not recognize files. I have encountered this when trying to run ID. In the save path box, the location p...
- Mon May 06, 2024 7:37 am
- Forum: AddBiomechanics
- Topic: Avg Residual Torque
- Replies: 4
- Views: 1230
Re: Avg Residual Torque
Hi Nicholas, It doesn't generate an error, but the log shows: Avg Marker RMSE: 2.297358580624706cm Avg Residual Force: 46.69737107660755 N (5.838317793768835% of original 799.8429123958804 N) Avg Residual Torque: 21.96351022960977 Nm (100.0% of original 0.0 Nm) Avg CoP movement in 'perfect' GRFs: 0....