Hello,

in addition to the rotations:

I have found a solution, that works for me now, but i do not know if that is an optimal way to solve it! I have just set the default lock to true, therefore no rotation is allowed and the translation works! Is there another way to probably fix it?

Yours, Rob

Hello again, at first I just want to say that it works as you suggest - if i keep the joint connection between body two and body one and add an additional marker to body 2, I can now move both indepentendly controlled by the trc-file related to marker movement! But I have another query - let me say ...

Perfect, thank you for your answer, I will try that step and implement the ground as the 2nd body relative! But I do have another question for interest: "What would happen if I keep the body-connection and add a new marker to the second body?" Can I control then the 2nd Body Movement via the new att...

Dear Open Sim Professionals, I do have a simple model but a huge problem! The model consists of a ground and two bodies! The first body is connected via a free joint to the ground, the second body is connected via a free joint to body one! One marker is attached to body one and via a simple trc-file...

Thank you for the link.. sorry it was an typing error.. no error or warning occure during compiling. I compared my file with your example and I adapted it. But nothing has changed. I noticed one difference. the command Model.addJoint(*joint) doesn't exist in the API Version 3.3 could this be a reaso...

Thank you Tom Uchida for this advice. I tried to add a PointToPointActuator to my model in the same way it is done in the APIExamples/CustomActuatorExample. everything works fine, until a want to add the actuator to the model with ' Model.addforce(actuator) ' . During compling the '.cpp' now error o...

Dear Community, I do have (in my opinion) a simple problem, but I can't find a solution! I do have an external muscle model (created in MatLab), where I can get a force-time-curve generated by a muscle! Now, I have the same muscle implemented in OpenSim, attached to a bony element! The only thing I ...

Thank you,

thats a good point - for my understanding, if I have the timepoints at 0 and 2 and the corresponding force at 0 and 15 my code should look like: Am I right?

Hello, again me, and again with a similar issue, i want to create a linear function for the force in MatLab - the c++ code looks so: PiecewiseLinearFunction *forceX = new PiecewiseLinearFunction(2, time, fXofT); In MatLab i can acces to the constructor like: Force = PieceWiseLinearFunction(); but ho...

Dear Community, we are currently working on a project where we simulate the movement of a horses spine! We do have all the data for that spine from radiographic measurements! For further research, we want to compare the horse data to human data! Therefore we would need a good, complete model of the ...