vcc avatars: defining bone length

[bjgold]

I'm new to the world of full character avatars, and as such I'm playing with the vcc_ avatars because they afford us the bones like in our Measurand motion capture system.

However, as the people wearing the system are different sizes, we need to set the bone lengths (especially the arms) for each person. Is there a way to do this in Vizard? Thanks to the forum, I can find the length of the upper and lower arms, using

		pos1 = leftShoulder.getPosition(viz.ABSOLUTE_WORLD)
		pos2 = upperLeftArm.getPosition(viz.ABSOLUTE_WORLD)
		length = vizmat.Distance(pos1,pos2)
		print 'distance between left shoulder and elbow, ', length

However, the distance seems to vary depending on the movement of the sensors, and thus must be some sort of relative distance, where we need an absolute distance.