Curvature of singular Bezier curves and surfaces

被引:4
|
作者
Sederberg, Thomas W. [1 ]
Lin, Hongwei [2 ]
Li, Xin [3 ]
机构
[1] Brigham Young Univ, Dept Comp Sci, Provo, UT 84602 USA
[2] Zhejiang Univ, State Key Lab CAD&CG, Hangzhou 310058, Zhejiang, Peoples R China
[3] Univ Sci & Technol China, Dept Math, Hefei 230026, Peoples R China
关键词
Curvature; Singular points; Bezier curves; Bezier surface patches; PATCHES;
D O I
10.1016/j.cagd.2011.03.004
中图分类号
TP31 [计算机软件];
学科分类号
081202 ; 0835 ;
摘要
This paper presents a general approach for finding the limit curvature at a singular endpoint of a rational Bezier curve and the singular corner of a rational Bezier surface patch. Conditions for finite Gaussian and mean limit curvatures are expressed in terms of the rank of a matrix. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:233 / 244
页数:12
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