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Twists, curvatures and surface interrogation. (English) Zbl 0656.65026

A survey is presented of methods to determine the corner twists of a bicubic patch, the employment of differential geometry to compare the methods, and the graphics tools to visualize them.

MSC:

65D15 Algorithms for approximation of functions
51N05 Descriptive geometry
53A05 Surfaces in Euclidean and related spaces
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