Interpolation with interval and point tension controls using cubic weighted v-splines

Authors:
Thomas A. Foley
Affiliations:
Arizona State Univ., Tempe
Venue:
ACM Transactions on Mathematical Software (TOMS)
Year:
1987

Citing 9
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Abstract

Various methods have been developed to control the shape of an interpolating curve for computer-aided design applications. Some methods are better suited for controlling the tension of the curve on an interval, while others are better suited for controlling the tension at the individual interpolation points. The weighted v-spline is a C1 piecewise cubic polynomial interpolant that generalizes C2 cubic splines, weighted splines, and v-splines. Shape controls are available to “tighten” the weighted v-spline on intervals and/or at the interpolation points. The mathematical theory is presented together with short algorithms for parametric interpolation.