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https://stackoverflow.com/questions/105 ... in-unicode

The AnalysisTool builds a set of states, internally, when the tool is constructed from file. If you make a default tool, then set all the properties, the internal state won't have been constructed. This is more of an OpenSim tool side bug since, at run(), the tool should build the states from the pr...

But as soon as I run RRA, my model goes down and then up. You are running RRA when not all the forces are available. In the picture you posted, only one GRF is present, so the balance of forces and masses are inconsistent and the model will 'sink'. You should only perform RRA during periods when AL...

but it would have been a lot easier to build the model in the first place without hand fitting wrap surfaces! What tool would suggest? An optimizer that fits based on some criteria (moment-arm curves?). I think the problem you faced is actually a point of research that people like yourself should i...

read that the OpenSim C3D File Converter isn't compatible with Kistler, In OpenSim, we use BTK to do the data conversion, but we do testing on our side to make sure the COP (and some other values) are correct. This is particularly important since BTK is no longer supported by the original developer...

Locking the coordinates means that any forces required to maintain the current coordinate value are provided by the underlying system. So any failures are not caused by a lack of forces crossing those coordinates.

Are you still seeing the issue?

My actuator files consists of one torques actuator applied to the pelvis body You have to use an actuator for every coordinate. Not just one for the entire body. Have you tried using the RRA or CMC actuator files that are distributed with the example model and data? There is also an example that de...

I would suggest thinking of the problem from an idealized perspective rather than a physical device perspective. In OpenSim, you can add different idealized force or actuator types that would model the behavior of a device (in the real world). Have a look at the various types of forces and actuators...

mistake when I did RRA again, I don't know why. Are you still having the issue? Is there an error message you can post? I want to know how to write pointactivator, torqueactivator and torqueactivator in actuators.xml In the OpenSim GUI you can find snippets of code for each OpenSim type by going to...

The MotionType of a Coordinate is now fully determined by the Joint. The user cannot set the MotionType for a Coordinate. There are instances such as in the leg6dof9musc and Rajagopal2015 models, where a Coordinate was assigned an incorrect type (e.g. when a coordinate of a CustomJoint is not a meas...