Hello Raghavi, Let me explain why you may get such a message. Motion files are basically csv like text files that contain trajectories of model coordinates over time. If you try to load a motion to a model that doesn't have these coordinates (based on name matching of the file header) then you'll ge...

Hello, Just guessing here that the function expects a reference to string, and that fails because the argument is created on the call line. I'd split the last line into two: full_file_name = .... osim.STOFileAdapterQuaternion.write(quaternionTable, full_file_name ) Please let us know if that works, ...

Hello,

I'd try version 4.4 on your machine and see if the same problem exists or if it works, this should help resolve if the OS is the issue.

Please let us know what you find out,
-Ayman

Hello, The vtp files are included in the distribution e.g. if the application is installed into D:\OpenSim 4.4, they would be under D:\OpenSim 4.4\Geometry. Under the Edit->Preferences menu of the application there is an entry for "Geometry Search Path" that should point to this folder "D:\OpenSim 4...

Hi Jonathan, There're bits and pieces and examples of using WebGl to visualize OpenSim models in custom web applications, however there's no universal viewer to allow for this functionality as of now. We're working on one and it would be great if you, and other interested members, can open issue/fea...

Hello, Generally the API uses two parallel mechanisms in C++, one to obtain const references (e.g. get_translation) and a different call to return a mutable reference (e.g. upd_translation). If you want to change the contents of a property (Vec3 translation in this case), you'd call upd_translation ...

Hello, Generally speaking, 1. If you don't need muscles in your model, you're better off removing them from the file to begin with rather than programmatically removing them one by one. 2. The assumptions about the ordering of values/coordinates in the state can be tricky, so assigning values from a...

Hello,

The documentation suggests that the file in question is produced when you run CMC, please clarify if you did run CMC and the file wasn't written. Depending on where you ran the tools from, the file may live in a different folder.

Hope this helps,
-Ayman

Hello, A PathSpring contains a GeometryPath which is a sequence of PathPoints that are stationed on different bodies/segments (in essence it represents the geometric properties of a muscle path). As a force, however, it doesn't have a control signal. Please consult the documentation here for more de...

Hi Yuan, Not sure I understand your question but the snippet you describe "OpenSimDocument version=..." is included at the top of OpenSim files (.osim and .xml files) to encode the format of the elements in the XML file thus supporting backward compatibility. Our code parsing these files would conve...