For some applications, further subdivision of a segment of a B-spline curve or B-spline surface is desirable. This paper provides an algorithm for this. The structure is similar to de Boor's algorithm for the calculation of a point on a curve. An application of the subdivision is illustrated.
β¦ LIBER β¦
Blossoming and knot insertion algorithms for B-spline curves
β Scribed by Ronald N. Goldman
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 897 KB
- Volume
- 7
- Category
- Article
- ISSN
- 0167-8396
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The paper presents pseudocode aloorithms, c-lanouaoe code, and error analysis for removino knots from rational B-spline curves and surfaces. Efficient and easy-to-use aloorithms are presented that, with one call, remove all the removable knots from a B-spline curve or surface.