计算机工程与应用 ›› 2007, Vol. 43 ›› Issue (27): 8-9.

• 博士论坛 • 上一篇    下一篇

近似弧长参数化Bézier曲线的最佳逼近

白鸿武,叶正麟,王树勋,石 茂   

  1. 西北工业大学 理学院,西安 710072
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-09-21 发布日期:2007-09-21
  • 通讯作者: 白鸿武

The best approximation of nearly arc-length parameterized Bézier curves

BAI Hong-wu,YE Zheng-lin,WANG Shu-xun,SHI Mao   

  1. Faculty of Science,Northwestern Polytechnical University,Xi’an 710072,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-09-21 Published:2007-09-21
  • Contact: BAI Hong-wu

摘要: 考虑近似弧长参数化Bézier曲线的逼近问题。当获得Bézier曲线的一个近似弧长参数化[1]之后,这种参数化只能达到C0-连续性。为了增加其参数连续性,利用其带有端点约束的关于L2-模的最佳逼近以得到具有C2-连续性的Bézier样条曲线。实验证明,这种逼近的效果是十分理想的。

关键词: Bézier曲线, 弧长参数化, 逼近

Abstract: In this paper,we consider the problem of the approximation of nearly arc-length parameterized Bézier curves.When a nearly arc-length parameterization[1] for a Bézier curve has been obtained,the parameterization could only acquire C0-continuity.To increase the parametric continuity,we use its best approximation with constraints at the endpoints with respect to L2-norm to get a Bézier spline curve with C2-continuity.Experiment proves that the effect of this approximation is quite satisfactory.

Key words: Bézier curves, arc-length parameterization, approximation