带参数的C~3连续拟Catmull-Rom样条函数
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  • 英文篇名:THE C~3 QUASI CATMULL-ROM SPLINE FUNCTION WITH PARAMETERS
  • 作者:李军成 ; 刘成志
  • 英文作者:Li Juncheng;Liu Chengzhi;College of Mathematics and Finances,Hunan University of Humanities,Science and Technology;
  • 关键词:Catmull-Rom样条 ; 插值 ; 形状调整 ; C~3连续
  • 英文关键词:Catmull-Rom spline;;interpolation;;shape adjustment;;C~3 continuity
  • 中文刊名:JSSX
  • 英文刊名:Mathematica Numerica Sinica
  • 机构:湖南人文科技学院数学与金融学院;
  • 出版日期:2018-02-14
  • 出版单位:计算数学
  • 年:2018
  • 期:v.40
  • 基金:湖南省自然科学基金资助项目(2017JJ3124)
  • 语种:中文;
  • 页:JSSX201801007
  • 页数:11
  • CN:01
  • ISSN:11-2125/O1
  • 分类号:98-108
摘要
为了使得Catmull-Rom型样条兼具形状可调性与高阶连续性,提出了一类带参数的拟CatmullRom样条函数.该样条函数不仅无需求解方程系统即可自动达到C~3连续,而且还可通过所带的2个参数对插值曲线的形状进行调整·通过确定所带参数的最优取值,可获得最佳拟Catmull-Rom样条插值函数.
        A class of quasi Catmull-Rom spline function with parameters is presented in this paper to make the Catmull-Rom spline have shape-adjustable ability and high-order continuity.The quasi Catmull-Rom spline function can not only automatically achieve C3 continuity without solving equation systems, but also adjust the shape of the interpolation curve through the two parameters. The best quasi Catmull-Rom spline interpolation function can be obtained by determining the optimal value of the parameters.
引文
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