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Surface normals and barycentric coordinates. (English) Zbl 0943.53005
Author’s abstract: The normal to a triangular parametric surface is investigated where the parameters used are barycentric coordinates. Formulae for the normal are obtained for non-rational and rational surfaces.
MSC:
53A05 Surfaces in Euclidean and related spaces
68U05 Computer graphics; computational geometry (digital and algorithmic aspects)
68U07 Computer science aspects of computer-aided design
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