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what is the difference between method get_curviess and getCurvinessInUse

a=myMillardMuscle.get_FiberForceLengthCurve; % I am trying to change the curviness of Millard Equilibrium muscle

a.set_curviness(0);

a.get_curviness

ans=

0

a.getCurvinessInUse

ans=

0.75

what is the difference between method get_curviess and getCurvinessInUse

I dont find an explanation here:

https://simtk.org/api_docs/opensim/api_ ... e7ed1ca708

Am I actually changing the curviness or not?

"curviness" and "CurvinessInUse" may differ, depending on the muscle model and the value of the "curviness" property. The code reads the "curviness" property and adjusts it if necessary; if no adjustment is necessary, then "CurvinessInUse" and "curviness" will be equal. In OpenSim 3.3, I think you would need to set the "curviness" property and then call initSystem() for the change to take effect.

It works. Thank you.

Also, if I don't set curviness first and try to call method get_curviness, Matlab will crash. However, 'getCurvinessInUse' will give me some default value. After setting some reasonable curviness and init_system, based on Millard Muscle, both get_curviness and getCurvinessInUse will agree.