Hi everyone, I am trying to build and install OpenSim core on Ubuntu and e.g. on Google Drive. I wonder if this is possible. I used this procedure below from OpenSim core (on Github) in Google notebook. Ubuntu 16.04 Xenial Xerus AND Ubuntu 16.10 Yakkety Yak: ************************** !sudo apt-get ...

Thanks Dimitar for the information and the link. Now it works: Here is what I did: ExtLoads = ExternalLoads([setupfiles_folder '\GRF.xml'],1); extloadpath = fullfile(GRF_results_folder, GRFFile); ExtLoads.setDataFileName(extloadpath); ExtLoads.print([setupfiles_folder '\GRF1.xml']) Cheers, Hossein

Hi all, I am pretty much following the same procedure in Matlab to do Inverse Dynamics using OpenSim 4.0. Following the definition of GRF.xml so that I can change and set the external forces (i.e. GRFs.mot) i.e. ExtLoads = ExternalLoads(model,[setupfiles_folder '\GRF.xml']) Then I get this error bel...

Great points James! Thanks for sharing them all with me. I will read the biomch-l thread and I do agree with you that there should be a better way of handling data (e.g. filtration when and how!). It is also interesting idea to filter joint torque. Is this possible in Static Optimisation? Is there a...

These steps are great James! Thank you very much. I think I could import C3D and filter the data as well.I assume the reason you guys don't write the meta data back to OpenSim Table (using osimTableFromStruct.m) is to help the user choose their own meta data. However, I have other issues which might...

Thanks to James to help me figure out that the shift is just the way GUI present data so the actual data is imported correctly. Now I am filtering marker and force data and I have some issues: I also asked Nick here: https://github.com/opensim-org/opensim-core/issues/2262 So, I am trying to filter T...

I have realised that there is always 0.45 (or 45cm) shift between marker positions and GRF (CoP location). I am trying to figure out where in the code things (marker positions or CoP locations) alter. However, I think the original code has been written to consider force plates one after the other no...

Hi all, I have two force plates next to each other. When I use c3dExport.m in Matlab via OpenSim 4., my force data (locations) seem to have an offset from the feet markers. I used all the options (e.g. COP = 1 etc in osimC3D(c3dpath, 1)). I also get the following warning after this line is being exe...

Thanks a lot James! Splitting the tibia is a great idea. I was thinking if we can define e.g. a plane (crossing the tibia, & muscles) and then parametrically change it (its height from e.g. ankle joint) and get forces (or JRF) at any point this plane crosses the tibia so that I can avoid splitting t...

Hello all,

Is there a simple method to report loading (moments and forces) at a cross section of e.g. tibia from OpenSim?

Cheers,
Hossein