Looks like the typical set functions for these components are not wrapped yet. You can get around this using the PropertyHelper: https://simtk.org/plugins/phpBB/viewtopicPhpbb.php?f=91&t=9609&p=0&start=0&view=' Should be similar in Python to the MATLAB example above^ https://simtk.org/plugins/phpBB/...

My first guess would have been that there was an issue with the data you imported to OpenSim. However, since you checked your joint moments from ID vs the literature that doesn't sound like it is the case. A couple ideas: 1) Are you using one of the default OpenSim models? Many times if you enable e...

I don't know all the details about what you are trying to do, but to transform a vector I think you can do the following in MATLAB: Frame has a method "findTransformBetween", you could use this to get the Transform between ground and your body Frame. Then Transform has the following methods you can ...

Just an observation in case someone runs into issues with a similar setup for (Coordinate& coord : _model.updComponentList<Coordinate>()) { std::cout << coord.getAbsolutePathString() << std::endl; } will give a different result than using a non referenced Coordinate iterator or the getComponentList ...

Ok, thanks for clarifying.

Colin

Hi all, I'm working on implementing a simulation tool in C++ (OpenSim 4.0) that treats coordinates in the model differently. So I have an .xml file with list properties of "Primary" coordinates and "Secondary" coordinates that I read in as strings. I need to get the value of each of the Secondary co...

Sorry forgot to post the file example:

Check that the line in the .trc file that gives the meta data values (line 3 in example below) is separated by tabs and not spaces. I'm guessing you have one pair that has a space in between the values instead of a tab. Most text editors have an option "View Whitespace" etc that will show you tabs v...

So just to clarify an issue I have had with SimTK::VectorView in C++ for a long time and now I think I finally understand: If q_matrix is a SimTK::Matrix, then ~q_matrix will return a SimTK::VectorView. In the visual studio IDE if you try to use the SimTK::VectorView in a function that is expecting ...

Hi All, No need to respond to this, just wanted to repost here so that the answers are searchable for others with similar questions. I am trying to read in the results from an IK file, then set the coordinates and generalized speeds in the model. The issue I am having is that I have the IK results i...