the measure-->arclength tool shows me a value on screen in worldspace of the distance from the beginning of a curve to the locator, but I cant seem to return anything off the curve info node thats not in u space. The curve is moving so while the parameterization is not changing, the worldspace value should. Its more annoying becuase I can see the value I want to get at in my interactive window, but I cant find the mel hook to it.
thanks