<t>Hi Christopher,<br/> <br/> When running IK (either for marker placement or for proper IK) you can have marker trajectories only or you might also have some "guess" for coordinate values as well (obtained from the motion capture system). If you have the latter, it helps the IK solver converge fast...

<t>Thanks Daniel for the response. <br/> <br/> Some more info below<br/> <br/> 1. We don't have graphical editing of markers yet so you'll need to modify the coordinates manually in the XML file. (A possible hack is to make a muscle point at the position of the marker and use graphical editing to po...

<t>Hi all, <br/> <br/> I investigated the crash and that was caused by joints whose name starts with a number (e.g. 2MCP). If you change these names in SIMM or in the file so that they don't begin with a number, the crash will be fixed. The fix for that will go into next release.<br/> <br/> A more i...

Hi Istvan,

Can you send us the .osim file you're using? Without that it's impossible to track down the bug.

Sorry for the delay,
-Ayman

<t>Dear Jesse,<br/> <br/> You can do what you want by creating a new type of muscle (a C++ class) and have the methods of this class call your Matlab code. Only problem is that our API is not stable/publically available yet. The good news is that it will be made available later this year.<br/> <br/>...

<t>Dear Jesse, <br/> <br/> Version 1.1.1 of OpenSim (already posted on the download page) offers this capability. If you go to Edit->Preferences ... <br/> A dialog will come up that allows you to change a few things about the GUI including <br/> "Muscle Display Radius". The new value becomes effecti...

Sorry Matias but I think you're talking to the forum of another OpenSim!.

-Ayman

Dear Adam,

As of now there isn't a way for OpenSim to report/plot joint contact forces to users. We understand it's an important functionality and we hope to implement this feature in the near future.

Best regards,
-Ayman

<r><br/> I went ahead and uploaded the files provided by Daniel to the opensim-utils project. They should be accessible at the URL below so that other users can try them out. <br/> <br/> <URL url="https://simtk.org/websvn/wsvn/opensim-utils/public/BallState/MarkerSet/#_public_BallState_MarkerSet"><L...

<t>So, did you try the solution I proposed earlier? <br/> <br/> I've seen a case where the installer didn't end up adding the OpenSim installation directory to the PATH because of a user PATH that was very long, or had some unusual characters. <br/> <br/> You can always check if it's a path problem ...