Tim Nikias v2.0 wrote:
> so, I've got the following formula to calculate Bezier-Splines:
...
> Anyways, I need to calculate the direction/tangent of the spline at any> given position.
...
I suggest that you go googling for "Frenet Frames"
Look for web pages similar to this norwegian one:
http://tinyurl.com/27xap
Tor Olav
