Search found 2254 matches

by Ayman Habib
Mon Jan 13, 2025 1:40 pm
Forum: OpenSim
Topic: Permission Denied
Replies: 1
Views: 148

Re: Permission Denied

Hello, When you install the software on Mac you have the option to install for just you or for all users, based on that you may or may not have permissions to the resources folder and/or the folder where the software was installed. The latter would be a problem since the application writes some inte...
by Ayman Habib
Mon Jan 13, 2025 12:03 pm
Forum: OpenSim
Topic: Download Issues with Mac
Replies: 2
Views: 163

Re: Download Issues with Mac

Hi Brendan,

The resources/models folder is auto installed the first time you run the installer on your computer, if you want a fresh copy you can follow the steps described below
viewtopicPhpbb.php?f=91&t=19290&p=52288

Hope this helps,
-Ayman
by Ayman Habib
Tue Dec 10, 2024 1:30 pm
Forum: OpenSim
Topic: How to use the ikSolver.computeCurrentMarkerLocation function
Replies: 4
Views: 1653

Re: How to use the ikSolver.computeCurrentMarkerLocation function

Hello, A reasonable approach would be to get the number of markers in use from the solver solver.getNumMarkersInUse() Then cycle through this list in turn and print the corresponding names using solver.getMarkerNameForIndex(index) The challenge that the solver is dealing with is that there're multip...
by Ayman Habib
Mon Dec 09, 2024 10:43 am
Forum: OpenSim
Topic: How to use the getCoordinatesInMultibodyTreeOrder() function in Python
Replies: 5
Views: 1339

Re: How to use the getCoordinatesInMultibodyTreeOrder() function in Python

Thanks Mohammadreza,

Indeed the function was introduced post 4.5 but should be available in 4.5.1 which is also available as a conda package.

Hope this helps,
-Ayman
by Ayman Habib
Mon Dec 09, 2024 10:35 am
Forum: OpenSim
Topic: How to use the ikSolver.computeCurrentMarkerLocation function
Replies: 4
Views: 1653

Re: How to use the ikSolver.computeCurrentMarkerLocation function

Hello Hanzhe Li, This looks very similar to an issue we fixed lately that was caused by calling the method on markers that are not in the intersection of model markers and those in the trc file. Code innocently assumed names passed in to be valid. Now we throw exceptions but earlier versions would h...
by Ayman Habib
Mon Dec 09, 2024 10:26 am
Forum: OpenSim
Topic: Installation problems
Replies: 3
Views: 950

Re: Installation problems

Hello, As described on the page you linked to, using conda packages is the best and most easily supported pathway to getting opensim to work under python. Since you're using version 4.5, you should find the packages here https://anaconda.org/opensim-org/opensim If for some reason you must use the in...
by Ayman Habib
Mon Oct 28, 2024 11:15 am
Forum: OpenSim
Topic: Exporting a Finite Element model in ANSYS to OpenSim
Replies: 2
Views: 1477

Re: Exporting a Finite Element model in ANSYS to OpenSim

Hi Rahmatullah, Best of luck with your effort to integrate your finite element model with OpenSim. As it stands I'm not aware of a streamlined workflow for this process. Similar to most modeling/simulation environments, OpenSim natively supports importing (one-way) geometry from modeling packages us...
by Ayman Habib
Tue Oct 22, 2024 3:19 pm
Forum: OpenSim
Topic: Python 3.11 and OpenSim 3.3 Integration Issues
Replies: 3
Views: 1345

Re: Python 3.11 and OpenSim 3.3 Integration Issues

Hi Walter, Thanks for reporting. Can you explain how you're getting the OpenSim python bindings? Basically before version 4.0 we used to build in-house bindings with a fixed version of python. Considering that OpenSim 3.3 was released in 2015 and used the python version available then, it's not surp...
by Ayman Habib
Mon Oct 21, 2024 2:18 pm
Forum: OpenSim
Topic: OpenSim support on arm64 (Snapdragon x Elite)
Replies: 2
Views: 1632

Re: OpenSim support on arm64 (Snapdragon x Elite)

Hi Sunny, The core libraries and scripting interfaces can all be compiled from source on arbitrary new platforms, if you try compiling from source and run into problems please open issues on github and we'll address. As to the GUI/application, it has extra dependencies on more third party tools and ...
by Ayman Habib
Mon Oct 21, 2024 2:00 pm
Forum: OpenSim
Topic: vtp surface files
Replies: 2
Views: 1233

Re: vtp surface files

Thanks for reporting, For the record, OpenSim version 3.3 used vtk's native libraries to load .vtp files so they were able to parse more vtk based files. As of version 4.0, due to switching to a visualizer that's not based on vtk, we use the Simtk native parsers instead, which are much smaller and w...