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| 基于边界表示的拔模算法及其应用 | |
| 引用本文： | 严冬明,张慧,雍俊海,孙家广.基于边界表示的拔模算法及其应用[J].工程图学学报,2004,25(4):31-35. |
| 作者姓名： | 严冬明 张慧 雍俊海 孙家广 |
| 作者单位： | 1. 清华大学计算机科学与技术系,北京,100084 2. 清华大学软件学院,北京,100084 3. 清华大学计算机科学与技术系,北京,100084;清华大学软件学院,北京,100084 |
| 基金项目： | 国家 863 资助项目(2003AA4Z1010)，国家 973 资助项目(2002CB312106) |
| 摘 要： | 拔模操作是三维几何造型系统中给实体创建倾斜面特征的有效方法。笔者以商业造型软件 TiGems 为平台,提出了一个基于边界表示的拔模算法。针对现有拔模算法的不足,改进了拔模操作中边的计算方法,提高了算法的效率;增加了判断并消除形体自交的功能,提高了算法的鲁棒性。笔者将本文的算法应用到草图的倾斜拉伸操作中,取得了不错的效果。 |
| 关 键 词： | 计算机应用 拔模 面环操作 实体造型 |
| 文章编号： | 1003-0158(2004)04-0031-05 |
| 修稿时间： | 2004年6月24日 |
Boundary Representation Based Draft Operation and Its Application |
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| YAN Dong-ming,ZHANG Hui,YONG Jun-hai,SUN Jia-guang.Boundary Representation Based Draft Operation and Its Application[J].Journal of Engineering Graphics,2004,25(4):31-35. | |
| Authors: | YAN Dong-ming ZHANG Hui YONG Jun-hai SUN Jia-guang |
| Affiliation: | YAN Dong-ming1,ZHANG Hui2,YONG Jun-hai2,SUN Jia-guang1,2 |
| Abstract: | Draft algorithm is an effective method for creating slant feature on a given solid body in currently 3D geometric modeling system. We present a boundary representation based draft algorithm on the TiGems platform. We improve the efficiency and robustness of the algorithm by accelerating the edge computing procedure and correcting self-intersecting solid. Finally we apply the algorithm to the extrusion operation. Examples are given to illustrate the results of the algorithm. |
| Keywords: | computer application draft loop operation solid modeling |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |