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Arc-length-preserving approximation of circular arcs by quintic PH curves

  • Weihong Zhang
  • , Yiqing Cai
  • , Yuyu Feng

Research output: Contribution to journalArticlepeer-review

Abstract

Most of the existing polynomial approximation methods of circular arcs do not preserve the arc lengths. To solve this problem, a new polynomial approximation method of circular arcs is proposed, where the result curves have the same endpoint positions, tangent vectors, and lengths as the given arcs. Here the PH curves are involved since their arc lengths can be represented using polynomial form. The accurate representations of the results in quintic PH curves are provided. Numerical examples are given to show the effectiveness of the new method.

Original languageEnglish (US)
Pages (from-to)1082-1086
Number of pages5
JournalJisuanji Fuzhu Sheji Yu Tuxingxue Xuebao/Journal of Computer-Aided Design and Computer Graphics
Volume22
Issue number7
StatePublished - Jul 1 2010

Keywords

  • Circular arcs
  • PH curves
  • Polynomial curve approximation

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