Hey Rodrigo! Hope you are well! After you have set the relevant state information and realized to the necessary stage you can extract the Transform as follows: bodySet = model.getBodySet(); body1 = bodySet.get('your_body'); body1Transform = body1.getTransformInGround(state); if you then want the rot...

Hey Ali,

It looks to me as though you haven't updated the number of columns to reflect 5 force plates worth of data... it is currently at nColumns=19... time + 2*9 force plate signals... I think in your case it should be time + 5*9 - so 46.

Hope that helps.

Nicos

Hello Ali,

Have you tried the TRCFileAdapter class?

https://simtk.org/api_docs/opensim/api_ ... apter.html

Perhaps once you have read your *.trc file you then are able to update the table of markers?

Best wishes,

Nicos

Hello Francine,

I would suggest posting your question on the dedicated Moco forum: indexPhpbb.php?group_id=1815&pluginname=phpBB

Best wishes,

Nicos Haralabidis

Hello Sebastien, storage.setColumnLabels takes a String Array as input: https://simtk.org/api_docs/opensim/api_docs/classOpenSim_1_1Storage.html#a9f2c1a44e4293790f4aeb24c9edbe51a So you need to create a string array for your column labels like so (in Matlab): col_labels = ArrayStr(); col_labels.set(...

Hello Krishna, It looks like you have the coordinates/motion file based on your attachment in the previous post - great! Have your model loaded in the OpenSim GUI, then go Tools -> Analyze... in the input space select Motion and From File, select your motion file. At the top then go to Analyses, at ...

I see I see. You could write your own implementation of static optimization based on the tutorial here to avoid having to load the file as you say: https://simtk-confluence.stanford.edu:8 ... +in+MATLAB

Best wishes,

Nicos

Hey Riza,

After you run each StaticOptimization you should get an output file (*.sto) which contains the muscle activations for each muscle. You can load in that file and then perform your preferred analysis.

Hope that helps!

Best wishes,

Nicos

This is somewhat of a minimum working example for adding an IMU to the femur_r using Matlab scripting... assuming you have already loaded your model as 'myModel': pos_vector = Vec3(0); % where you wish to position the IMU eventually in the body of interest pos_vector.setToZero(); pos_vector.set(1,-0...

Hello Bas, Have you seen the IMU class? https://simtk.org/api_docs/opensim/api_docs/classOpenSim_1_1IMU.html#a43a600184e05e1a5ee66f0658fa7a052 I believe you need to create a PhysicalOffsetFrame(specify the body, position and orientation), create an IMU object, connect the frame to the IMU and then c...