Search found 9 matches
- Tue Feb 15, 2022 2:00 am
- Forum: STO / TRC / MOT files plotter
- Topic: STO / TRC / MOT files plotter Public Forum
- Replies: 1
- Views: 533
Re: STO / TRC / MOT files plotter Public Forum
Hello, I'm using your function and thanks for having done it! I found only a little problem in "array2table" because if you have a VariableNames, C with some repetitions (e.g. {'X', 'Y', 'Z', 'X', 'Y', 'Z'}) cannot work. So the function cannot convert in table format and stop. You can add an if or o...
- Wed Jan 05, 2022 1:54 am
- Forum: OpenSim
- Topic: OpenSim JAM "computePotentialEnergy"
- Replies: 1
- Views: 870
OpenSim JAM "computePotentialEnergy"
Hi all, I'm working with OpenSim JAM, developed by Colin Smith. I was trying to calculate the contact energy between the cartilage mesh with the function "computePotentialEnergy". It requires as input an opensim.modelling.State element and give as output a double number. I don't understand if the st...
- Tue Jun 02, 2020 12:48 am
- Forum: OpenSim
- Topic: OpenSense Calibration Method
- Replies: 1
- Views: 342
OpenSense Calibration Method
Hi, I'm comparing the Inverse Kinematics of OpenSense with the IK of the standard OpenSim pipeline (OS - Vicon). My firsts results show a sort of offset angle between the two methods. Did someone compare the IKs (OS vs IMU)? I'd like to understand better the calibration method in OpenSense. Is there...
- Fri May 15, 2020 3:19 am
- Forum: OpenSim
- Topic: OpenSense XSens text files
- Replies: 5
- Views: 1140
Re: OpenSense XSens text files
Hi Amy, Thanks for your help. I completely agree. I was working with the segment quaternions but I had problems, the calibration results in a parallel configuration of the sensors inside the OpenSim model without any sense. Now, you confirmed what I thought: the segment orientation is different from...
- Thu May 14, 2020 2:10 am
- Forum: OpenSim
- Topic: OpenSense XSens text files
- Replies: 5
- Views: 1140
Re: OpenSense XSens text files
Hi Ayman, I tried to convert mvnx format in txt to verify that there are no differences between the segment orientation already calculated with Xsens (in the mvnx file) and the sensor orientation in txt format. But for now, I found completely different results. Is it possible to convert MNVX (sensor...
- Fri Apr 24, 2020 12:16 am
- Forum: OpenSim
- Topic: OpenSense Calibration
- Replies: 5
- Views: 510
- Thu Apr 23, 2020 5:21 am
- Forum: OpenSim
- Topic: OpenSense Calibration
- Replies: 5
- Views: 510
Re: OpenSense Calibration
Hi Habib In did the calibration procedure with Matlab, in my case I have the -z axis as the forward one, but when I defined (-pi/2, 0, 0) as my rotation, what I get in the calibrated model is different (see picture attached). Is this because the -z axes is not perfectly aligned with x? How do I know...
- Fri Apr 17, 2020 2:17 am
- Forum: OpenSim
- Topic: OpenSense Calibration
- Replies: 5
- Views: 510
Re: OpenSense Calibration
Hi, I was wondering how did you show the reference system of each IMUs in your model on OpenSim? It's really useful. Thanks
- Thu Apr 09, 2020 8:40 am
- Forum: OpenSim
- Topic: OpenSense Calibration file
- Replies: 0
- Views: 162
OpenSense Calibration file
Hello to the OpenSim forum and community. I started to use the OpenSense tool and the kinematic results compared with the stardard pipeline of OpenSim seem really promising. I collected my dataset with Xsens sensors, and I have all of them .mvnx format. Xsens company provides a tool fro load and rea...