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浙江大学学报(理学版)  2021, Vol. 48 Issue (2): 131-142    DOI: 10.3785/j.issn.1008-9497.2021.02.001
图形计算     
带2个形状参数的多项式可展曲面造型
王海波1, 杨当福1, 佘卫勤1, 刘圣军1, 刘新儒1, 陈月安2, 白燕羽2
1.中南大学 工程建模与科学计算研究所,湖南 长沙 410083
2.中国航发南方工业有限公司, 湖南 株洲 12000
Developable polynomial surface modeling with two shape parameters
WANG Haibo1, YANG Dangfu1, SHE Weiqin1, LIU Shengjun1, LIU Xinru1, CHEN Yuean2, BAI Yanyu2
1.Institute of Engineering Modeling and Scientific Computing, Central South University, Changsha 410083, China
2.AECC South Industry Co., Ltd., Zhuzhou 412000, Hunan Province, China
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摘要: 构造了一组带2个形状参数的多项式基函数,其为三次伯恩斯坦基函数的扩展。首先,给出了该组基函数的基本性质,分析了基函数的逼近性和形状可调性,讨论了用该组基函数构造插值样条的保正性和保单调性;然后,基于对偶性原理,用该组基函数构造了包络可展曲面和脊线可展曲面,并分析了可展曲面的G1G2G3连续性;最后,用实例验证了方法的有效性。
关键词: 形状参数多项式插值曲线保形性可展曲面连续性分析    
Abstract: This paper constructs a set of polynomial basis functions with two shape parameters,which are extensions of the cubic Bernstein basis functions.The basic properties of the basis functions are outlined,then the approximation and the shape tunability are analyzed,and the positive-preserving and monotonicity-preserving of the interpolation splines constructed with the basis functions are discussed.Based on the duality principle,the basis functions are used to construct the envelope developable surface and the spine curve developable surface.Furthermore,the G1,G2 and G3 continuity of the developable surface are analyzed. The numerical experiments show the effectiveness of this method.
Key words: shape parameter    shape preserving    developable surface    polynomial interpolation curve    continuity analysis
收稿日期: 2020-09-23 出版日期: 2021-03-18
CLC:  TP  
基金资助: 湖南省重点研发计划项目(2017NK2383);国家自然科学基金资助项目(61602524).
通讯作者: ORCID:https://orcid.org/0000-0001-5427-0178,E-mail:liuxinru@csu.edu.cn.     E-mail: liuxinru@csu.edu.cn
作者简介: 王海波(1997—),ORCID:https://orcid.org/0000-0002-6612-7528,男,硕士研究生,主要从事计算机辅助几何设计研;
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引用本文:

王海波, 杨当福, 佘卫勤, 刘圣军, 刘新儒, 陈月安, 白燕羽. 带2个形状参数的多项式可展曲面造型[J]. 浙江大学学报(理学版), 2021, 48(2): 131-142.

WANG Haibo, YANG Dangfu, SHE Weiqin, LIU Shengjun, LIU Xinru, CHEN Yuean, BAI Yanyu. Developable polynomial surface modeling with two shape parameters. Journal of Zhejiang University (Science Edition), 2021, 48(2): 131-142.

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https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2021.02.001        https://www.zjujournals.com/sci/CN/Y2021/V48/I2/131

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