journal6 ›› 2011, Vol. 32 ›› Issue (5): 34-36.

• 数学 • 上一篇    下一篇

一类可调控有理Bézier曲线及其性质

  

  1. (1.中南大学数学科学与计算技术学院,湖南 长沙 410128;2.湖南农业大学理学院,湖南 长沙 410128)
  • 出版日期:2011-09-25 发布日期:2012-04-06
  • 作者简介:蒋莉(1975-),女,湖南祁东人,湖南农业大学理学院讲师,硕士,主要从事数值逼近、计算机辅助几何设计研究.

A Class of Modifiable Rational Bézier Curves and Its Properties

  1. (1.School of Mathematical Sciences and Computing Technology,Central South University,Changsha 410128,China;2.Science College,Hunan Agricultural University,Changsha  410128,China)
  • Online:2011-09-25 Published:2012-04-06

摘要:给出了一类具有n+1个控制点和参数l的可调控的有理Bézier曲线,证明其比普通的有理Bézier曲线更加具有保形性,且l无限增大时一致逼近于控制多边形.

关键词: 有理Bé, zier曲线, 一致逼近, 基函数, 可调控

Abstract: A class of modifiable rational Bezier curves with n+1 control points and a parameter l are presented.These curves preserves the shape of the control polygon better than original Bézier curves.By varying the values of the parameter l,the shape of the curves can be modified and the curves approximate globally to the control polygon as l increases infinitely.

Key words: rational Bé, zier curves, approximate uniformly, basis function, modifiable

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