Search found 12 matches
- Fri Jul 08, 2022 2:20 pm
- Forum: OpenSim
- Topic: Scaling from mocap data (marker names don't match)
- Replies: 2
- Views: 355
Re: Scaling from mocap data (marker names don't match)
Thanks Ayman. I feel like there is quite a lot of work that has to be done manually. Once I added my experimental markers and carefully place them on the correct position on the model, I can go straight into the IK step and it successfully creates the motion result for me. Is it recommended to skip ...
- Thu Jul 07, 2022 9:44 pm
- Forum: OpenSim
- Topic: Scaling from mocap data (marker names don't match)
- Replies: 2
- Views: 355
Scaling from mocap data (marker names don't match)
Hi, I am learning the scaling tool. I have some mocap data with 25 experimental markers (upper body only). I am trying to scale the full body opensim model with 83 virtual markers. The two sets of markers have different names. How would I go about this? I have checked out the tutorial. If I understa...
- Thu Jul 07, 2022 12:21 pm
- Forum: OpenSim
- Topic: Regarding scale setup file
- Replies: 2
- Views: 358
Re: Regarding scale setup file
I am having the same questions. Can anyone please help??
- Fri Jun 17, 2022 6:45 am
- Forum: OpenSim
- Topic: How to convert Component to IMU?
- Replies: 3
- Views: 479
Re: How to convert Component to IMU?
Many thanks! Conversion to a more specific type can be done using `safeDownCast()`. This is a method in MATLAB/Python to help scripting users change the type. See the Common Scripting Commands page , and then there's an example under the "Exploring and Editing Models and Model Components" section.
- Thu Jun 16, 2022 12:39 pm
- Forum: OpenSim
- Topic: Angular velocity in global or body local frame
- Replies: 6
- Views: 1115
Re: Angular velocity in global or body local frame
Can someone please confirm if the w(in local)=R*w(global) solution is correct? Hi carmichael, Thank you so much for your answer. Do you know how opensim convert global angular velocity/acceleration to local angular velocity/acceleration? I didn't find the exact formula and code there.w(in local)=R*w...
- Tue Jun 14, 2022 1:19 pm
- Forum: OpenSim
- Topic: How to convert Component to IMU?
- Replies: 3
- Views: 479
Re: How to convert Component to IMU?
I found this post https://github.com/opensim-org/opensim-core/pull/3002
But I don't understand how to convert the component into IMU type so I can run functions in IMU class
But I don't understand how to convert the component into IMU type so I can run functions in IMU class
- Tue Jun 14, 2022 1:15 pm
- Forum: OpenSim
- Topic: How to convert Component to IMU?
- Replies: 3
- Views: 479
How to convert Component to IMU?
Hi, I was able to run IMU placer with script in GUI and added an IMU on the calibrated model. I was able to access the IMU component via name (e.g. "hand_l_imu"), yet I was not able to convert the Component type to IMU type, as I get the error "1st arg can't be coerced to org.opensim.modeling.IMU". ...
- Mon Jun 06, 2022 2:45 pm
- Forum: OpenSim
- Topic: IMU angular velocity to report local coordinate values?
- Replies: 1
- Views: 359
Re: IMU angular velocity to report local coordinate values?
I suppose it could be done with script? https://opensim-org.github.io/opensim-moco-site/docs/1.1.0/html_user/classOpenSim_1_1IMUDataReporter.html I would like to know how to use motion as input when running IMUDataReporter analysis with script, and how to make it report angular velocities in local c...
- Mon Jun 06, 2022 10:08 am
- Forum: OpenSim
- Topic: IMU angular velocity to report local coordinate values?
- Replies: 1
- Views: 359
IMU angular velocity to report local coordinate values?
When I place an IMU on the model, no matter which initial IMU orientation I chose, the IMUDataReporter gives the same results of the angular velocities for the same motion. I believe the angular velocities are global/world coordinate values. Is it possible to make IMUDataReporter report angular velo...
- Fri Apr 08, 2022 7:18 am
- Forum: OpenSim
- Topic: Synthetic IMU Data from Motion - Questions from a Newbie
- Replies: 1
- Views: 385
Re: Synthetic IMU Data from Motion - Questions from a Newbie
Does anyone have experience using IMUDataReporter?