A cubic spline, as I understand it, has a unique solution for a set
of points. From what I can gather, a cubic spline is a special case
of a bezier curve. The feature of a cubic spline is that, at the
intersection of adjacent segments the first and second derivatives
are equal, so the curve is smooth and continuous.
It's not clear to me that by choosing appropriate control points you
can determine the cubic spline, but I am hopeful. Examples of cubic
splines do appear to have two control points for each segment.
http://www.math.ucla.edu/~baker/java/hoefer/Spline.htm
Numerous solutions to cubic spline fits are available in various
computer languages, but its not clear to me that you can obtain a
cubic spline by computing two unique control points.
John Kubie
On Jul 5, 2006, at 10:42 PM, [EMAIL PROTECTED] wrote:
What do you mean "compute"? The control points are part of the
FigureShape specification.
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