- Published 1995 in Computer Aided Geometric Design
DOI:10.1016/0167-8396(94)00016-L

Definitions and properties for three types of cones, i.e., tangent, normal and visibility cones for regular parametric surfaces, are provided. Algorithms to compute these cones for a regular B6zier surface are provided. It is shown that a tangent cone can be computed from a hodograph, and a normal cone can be computed from a normal surface of a B6zier… (More)

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