Hi, I found a workaround: If you've run the OpenSim 4.0 configureOpenSim.m file before, which affects the MATLAB path and makes the error posted about in the code block pop up each time you open a new session (window) of MATLAB, then open a new session of MATLAB (it should beep several times as you ...

Hi, I haven't seen anyone else report this error, but for me, neither MATLAB R2018b with OpenSim 4.0 nor MATLAB R2018b with OpenSim 3.3 works on Windows 10. I've been using OpenSim 3.3 with MATLAB R2017b for a while, which has worked fine, but recently my institution has received a license for MATLA...

Hello,

Thank you so much! I will take a detailed look.

Stephanie

Hi all, Given a model, is it possible to obtain muscle fiber lengths directly from joint angles? I know the Computed Muscle Control and Forward Dynamics tools produce a states files containing the muscle fiber length for each muscle, but if users can load the joint angles file (produced by Inverse K...

Hi Mr. Uchida,

Thank you for the reply! I see, thank you for the information. I will keep that in mind.

Stephanie

Hello all, In running forward dynamics simulations of the MoBL_ARMS human forearm model, I understand that simulations can become unstable after some time. I looked for forward dynamics examples provided in the OpenSim installation folder, and found that in toyLeg_example.cpp (attached), a very simp...

Hi Dr. Uchida,

I just wanted to be sure that MATLAB time > Python time was expected, or at least not indicative of an error. Interesting; thank you!

Stephanie

Hi all, I've been testing the difference between MATLAB and python 2.7 (cygwin) implementations of OpenSim in running forward dynamics of a human arm model. Being careful to use the same files/settings and seemingly equivalent timers in MATLAB and Python, and starting/stopping the timer directly bef...

Hi Mr. Stanev, What version of Linux and what version (<https://github.com/opensim-org/opensim-core>, <https://github.com/opensim-org/opensim-core/tree/v4.0.0_beta>, <https://github.com/opensim-org/opensim-core/tree/v4.0.0_alpha>, so forth > Clone or Download > Download ZIP) did you use? I've been t...

Hello all, I'm attempting to install OpenSim 3.3, in order to use it with Python (2.7 or 3.6), on a Red Hat Enterprise Linux (7) operating system, with the terminal. That Linux OS already has Python (Anaconda), python-setuptools, wheel, pip, simbody, and cmake installed. However, upon following Open...