> Hi!

> Does anybody know, how to create curve based on 9 points. I have XYZ

coords

> of 9 points and is there any formula which will connect them smoothly?

> I tryed to use Bezier-curve, but it generate not what I need.

> I think there will be algo. May be there is algo which connect 3 or 4

> points?

> Please help!

> --

> - Ivan V.

> - ICQ# 781487

If you want smooth interpolation of points, you could have a look at

Kochanek-Bartels or Catmull-Rom splines. Both use the Hermite

basis functions to do the actual interpolation; the tangent vectors

for each control point are aquired from the 4 control points that

make up a single curve-segment. I believe Dave Eberly wrote a paper

on them for use in keyframe interpolation. Can't remember what it's

called though..

Willem