Thanks a lot, Vinay.
According to the instructions, I have solved my problem.
Regards.


-Charles.

Hello,
I want to ask the experts about the problem of replacement of muscles.
For example, I want to update the 'Thelen2003muscle' with 'Millard2012muscle', is there any functions in api for solving it?
Also, what about the earlier 'Schutle1993Muscle_Deprecated' .
Thanks!

Hello, When I search the api opensim 3.3, I found the introduction to ModelComponent interesting, especially these statements: The throttle controls the motor torque output and therefore the behavior of the model. The input by the user to the throttle the motor (the controls) is necessary to specify...

Hello, Yes. They are consistent after delete the bushing force. numStates = 194 and Nstates = 194 Actually, I need to define bushing forces among some bodies (haven't yet decided) in order to constraint two components. I have ever tried with the 'Constraints' function but failed. \ I want to make th...

Hello Christopher, I have tested this problem on model 'ToyLandingModel.osim' . I attach my test codes here: 1) For obtaining the number of states from the method 'model::getNumStateVariables()': osimModel = Model('ToyLandingModel.osim'); Nstates = osimModel.getNumStateVariables(); (also, I can get ...

Hello, I have met a problem that the number of states obtained from model::getNumStateVariables is inconsistent with the one get from state::getNY() due to the exist of bushing force. Up to my knowledge, state::getNY() will take bushing force into account while the model::getNumStateVariables doesn'...

Hello everyone, I have encountered with a problem of state vector. The state vector in OpenSim has the form of x=[q, \dot{q}, a(0), l^M(0), a(1), l^M(1),..., a(n), l^M(n)]^T, whose names can be obtained by 'OpenSim::Component::getStateVariableNames()'. While, from 'SimTK::State::getY()' we can also ...

Hi Ayman, Thanks for your advice. I have delt with this problem. Actually, it was the cause that I misunderstood the 'ArrayStr' as: spatialTrans.updTransformAxis(0).setCoordinateNames(ArrayStr('exo_rotation')); I checked it with the api, and I found the correct form should be 'ArrayStr('exo_rotation...

Hi Ayman, Now I have succeeded in CustomJoint modeling with C++. Based on your suggestions, creating Osim models with API Doxygen is quite efficient. While, I try to execute the same in Matlab, there is still a problem. For the codes in C++ as below, it worked without problem: CoordinateSet& exoCoor...

Hello Ayman, Thanks for your support. Now I think I have delt with this problem based on your advice. However, I also encounted with the problem underlying coordinates update. The definition of CustomJoint CoordinateSet is different from the others since the number of coordinates is not fixed (from ...