Construction of Bézier rectangles and triangles on the symmetric Dupin horn cyclide by means of inversion

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Abstract

Dupin cyclides may be obtained as offsets of a special Dupin cyclide, the so-called symmetric Dupin horn cyclide. A novel approach based on the concept of inversion is presented for generating rational Bézier patches on the symmetric Dupin horn cyclide. This leads to a new formulation for rational rectangular biquadratic cyclide Bézier patches, and to a rational Bézier representation of triangular patches of degree 4 on the symmetric Dupin horn cyclide.

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    Present address: Mathematisches Institut, Technische Universität München, D-80290 München, Germany

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