第 47 卷 第 6 期
2024 年 6 月
合肥工业大学学报
JOURNAL OF HEFEI UNIVERSITY OF TECHNOLOGY (NATURAL SCIENCE)
Vol. 47 No. 6
Jun. 2024

DOI:10.3969/j.issn.1003-5060.2024.06.016

双参数四重细分法

刘植 $ ^{1} $,李睿 $ ^{1} $,王旭辉 $ ^{2} $

(1. 合肥工业大学数学学院,安徽合肥 230601;2. 河海大学数学学院,江苏南京 210098)

摘要

文章借助反向构造和倍乘平滑因子操作提出一种双参数四重细分法,运用生成多项式推导证明该四重细分方法的连续性,求解出满足 $ C^{0}\sim C^{3} $ 连续性的具体参数取值区间。该文通过数值实例分析各参数对形成曲线的影响,用动态的参数迭代过程描述曲线生成的变化细节。

关键词

反向构造;生成多项式;四重细分; $ C^{k} $ 连续性;参数选取

中图分类号:TP391.72

文献标志码:A

文章编号:1003-5060(2024)06-0823-06

Quaternary subdivision scheme with two parameters

LIU Zhi $ ^{1} $, LI Rui $ ^{1} $, WANG Xuhui $ ^{2} $

(1. School of Mathematics, Hefei University of Technology, Hefei 230601, China; 2. School of Mathematics, Hohai University, Nanjing 210098, China)

Abstract

A quaternary subdivision scheme with two parameters is proposed by using reverse construction and multiplying smoothing factor. The continuity of this quaternary subdivision scheme is analyzed by generator polynomial. The specific parameter value intervals satisfying $ C^{0}-C^{3} $ continuity are provided. Numerical examples demonstrate the influence of each parameter on the curve formation, and the dynamic parameter iteration process describes the change details of the curve generation.

Keywords

reverse construction; generator polynomial; quaternary subdivision; $ C^{k} $-continuity; parameter selection

收稿日期:2023-05-08

修回日期:2023-06-19

基金项目:国家自然科学基金资助项目(62172135)