think the ones we did define a point on curve by the angle of tangent and distance along curve. or something?

]]>> seen this? posted last month, can maybe talk to?

Thanks for finding this! It looks really useful. I think I’m basically using the linear-approximation technique he describes but splitting it into quadratic curves sounds like it will improve things.

> intrinsic coordinates was the one blodgett thinking of

Oh yes! I seem to remember something about fitting different sized circles under the curve and the radius changing as you moved along it. Or is that something else?

]]>http://algorithmist.wordpress.com/2011/03/10/path-arc-length-parameterization-preview-i/

intrinsic coordinates was the one blodgett thinking of

sleepy now