Sections of parametric surfaces defined by equally spaced parameter values can be very unevenly spaced physically. This can cause practical problems when the surface is to be drawn or machined automatically. This paper describes a method for imposing a good parametrization on a curve constructed by
Spline conversion for trimmed rational Bézier- and B-spline surfaces
✍ Scribed by Josef Hoschek; Franz-Josef Schneider
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 962 KB
- Volume
- 22
- Category
- Article
- ISSN
- 0010-4485
No coin nor oath required. For personal study only.
✦ Synopsis
Conversion methods are required for the exchange of data. First a given rational B-spline surface with curved boundaries will be segmented by curvature oriented arguments, then these patches will be converted into bicubic or biquintic integral B4zier patches with help of geometric continuity conditions. The given curves with rational B-spline representation of arbitrary order in the parametric domain will be converted into integral Bspline curves of arbitrary order with help of geometric boundary conditions.
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