An explicit formula as well as a geometric algorithm are given for converting a rectangular subpatch of a triangular Bézier surface into a tensor product Bézier representation. Based on de Casteljau recursions and convex combinations of combinatorial constants, both formula and algorithm are numeric
Rational tensor product Bézier volumes
✍ Scribed by D. Lasser
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 853 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0898-1221
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An attractive method for approximating rational triangular Bézier surfaces by polynomial triangular Bézier surfaces is introduced. The main result is that the arbitrary given order derived vectors of a polynomial triangular surface converge uniformly to those of the approximated rational triangular