Hi Boxman, no, for the simple reason that a curve does not have a normal vector. It has a normal plane and a tangent vector. A surface on the other hand has a tangent plane and a normal vector.
The curvature vector (unless you're on a straight segment or a kink in which case there is no curvature) is always perpendicular to the tangent vector. And, if the curve is planar, the curvature vector will always lie in the same plane as the curve. -- David Rutten [email protected] Robert McNeel & Associates On Mar 23, 5:24 pm, Boxman <[email protected]> wrote: > Sorry - the post title is the wrong component - I actually meant for > the curvature component. So my question should be For a planar curve, > is it true that the curvature vector K that the curvature component > calculates at a given parameter is also the normal vector to the curve > at that parameter?
