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Zbl 0900.68405
Zhang, Jiwen
C-curves: An extension of cubic curves. (English)
[J] Comput. Aided Geom. Des. 13, No.3, 199-217 (1996). ISSN 0167-8396

Summary: A linearly parametrized set of curves, named C-curves, is suggested with basis sin t, cos t, t, and 1. C-curves are an extension of cubic curves, they depend on a parameter $\alpha >0$, and their limiting case for $\alpha \rightarrow 0$ is a cubic curve. They can deal with free form curves and surfaces, and provide exact reproduction of circles and cylinders. So, they could be used to unify the representation and processing of both free and normal form curves and surfaces in engineering.

MSC 2000:: *68U05 Computational geometry, etc.
41A15 Spline approximation

Keywords: Cubic C-Ferguson curve; Bézier curve; Uniform B-spline; C-Ferguson curve; C-Bézier curve; C-B-spline; NURBS

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