Geometric Modeling and Processing 2004
Knot Choosing by Accommodating the First Derivative Constraint
Beijing, China
April 13-April 15
ISBN: 0-7695-2078-2
The current cubic spline curve interpolation scheme is derived based on the implicit assumption that the magnitude of the first derivative of the curve is close to a constant. However, the assumption is not realized by the interpolation scheme. A knot choosing technique for parametric cubic spline interpolating curve construction that accommodates this assumption is presented. A comparison of the new method with several existing methods is performed and test results are included.
Index Terms:
Spline curves, strain energy, smoothness, shape preserving, knots, interpolation
Citation:
Zhang Caiming, Fuhua (Frank) Cheng, "Knot Choosing by Accommodating the First Derivative Constraint," gmp, pp.31, Geometric Modeling and Processing 2004, 2004