Length of muscle segments wrapped around cylinder should be a function of muscle radius or model size

[tkuchida]

WrapCylinder should adjust the minimum length of each muscle segment based on the muscle's radius (currently one of the Preferences in the GUI) or some measure of model size. Wrapping is currently very coarse for small models.

opensim-core/OpenSim/Simulation/Wrap/WrapCylinder.cpp

Lines 669 to 673 in 6fafb28

	// Each muscle segment on the surface of the cylinder should be
	// 0.002 meters long. This assumes the model is in meters, of course.
	int numWrapSegments = (int) (aWrapResult.wrap_path_length / 0.002);
	if (numWrapSegments < 1)
	numWrapSegments = 1;