Representing Spheres and Ellipsoids Using Periodic NURBS Surfaces with Fewer Control Vertices

Kaihuai Qin; Zesheng Tang; Wenping Wang

doi:10.1109/PCCGA.1998.732121

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Computer Graphics and Applications, Pacific Conference on

Representing Spheres and Ellipsoids Using Periodic NURBS Surfaces with Fewer Control Vertices

Year: 1998, Pages: 210

DOI Bookmark: 10.1109/PCCGA.1998.732121

Authors

Kaihuai Qin, Tsinghua University
Zesheng Tang, Tsinghua University
Wenping Wang, The University of Hong Kong

Abstract

A new kind of NURBS representation for periodic curves is introduced. The method for periodic curves is extended to derive a compact and symmetric representation of the sphere or the ellipsoid using a piecewise bi-quadratic NURBS surface with only eight distinct control vertices.

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