| 联合细分曲面中特征构造方法 |
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| 引用本文： | 何钢,廖文和. 联合细分曲面中特征构造方法[J]. 计算机集成制造系统, 2010, 16(3) |
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| 作者姓名： | 何钢 廖文和 |
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| 作者单位： | 1. 河海大学常州校区,机电工程学院,江苏,常州,213022
2. 南京航空航天大学,机电学院,江苏,南京,210016 |
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| 基金项目： | 国防基础科研资助项目(k1605061115);;常州市数字化制造重点实验室资助项目~~ |
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| 摘 要： | 为增强联合细分曲面的造型能力,根据联合细分的特点,提出了参数修改和复合曲线网两种特征构造方法。前者根据设定的特征角,在有限次细分中改变跨界二阶偏导,从而在插值曲线上生成特征;后者则将特征构造与基曲面的形状表达分离,定义了由基曲线网和特征曲线网组成的复合曲线网,采用改进后的联合细分规则生成带有特征的插值曲面。通过实例表明,由两种方法生成特征的影响范围可灵活调节,但后者生成的曲面总体质量较高。二者一起有效解决了联合细分曲面中特征构造的难题,增强了联合细分方法的造型能力。
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| 关 键 词： | 联合细分 插值曲线 特征构造 复合曲线网 曲面 |
Feature construction method of combined subdivision surface |
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| HE Gang,LIAO Wen-he. Feature construction method of combined subdivision surface[J]. Computer Integrated Manufacturing Systems, 2010, 16(3) |
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| Authors: | HE Gang LIAO Wen-he |
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| Affiliation: | 1.College of Mechanical & Electric Engineering/a>;Hohai University/a>;Changzhou 213022/a>;China/a>;2.College of Mechanical & Electric Engineering/a>;Nanjing University of Aeronautics & Astronautics/a>;Nanjing 210016/a>;China |
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| Abstract: | In order to improve modeling capacity of combined subdivision surface,according to the characteristics of combined subdivision,parameter adjusting method and compound curve network construction method were presented.The former was to adjust second derivatives on cross curves according to the specified feature angles during a few times' subdivision and acquired features on interpolated curves.The latter was to separate the features construction from the generation of global surface,and compound curve network... |
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| Keywords: | combined subdivision interpolating curve feature construction compound curve networks second derivatives on cross curve surface |
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