| 圆弧曲线的二次NURBS表示方法研究 |
| |
| 引用本文： | 韩明,孔亚洲,董炀斌,黄树槐. 圆弧曲线的二次NURBS表示方法研究[J]. 华中科技大学学报(自然科学版), 2001, 29(12): 37-39 |
| |
| 作者姓名： | 韩明 孔亚洲 董炀斌 黄树槐 |
| |
| 作者单位： | 华中科技大学材料科学与工程学院 |
| |
| 摘 要： | 由于用NURBS曲线表示圆弧时，因圆弧圆心角不同，圆弧方向不同，难于找到圆弧NURBS通用算法，以满足控制顶点少、紧凑凸包、良好参数化等特点，因此从二次NURBS曲线插入节点算法入手，提出一种基于等分圆心角的二次NURBS曲线表示方法。
|
| 关 键 词： | NURBS曲线 权因子 参数化 圆弧曲线 二次NURBS圆弧表示法 插入节点算法 CAGD |
| 文章编号： | 1000-8616(2001)12-0037-03 |
| 修稿时间： | 2001-07-04 |
Expressing Method for the Secondary NURBS Circular Curve |
| |
| Han Ming Kong Yazhou Dong Yangbin Huang Shuhuai Senior Engineer, College of Material. Sci. , Eng.,HUST,Wuhan ,China.. Expressing Method for the Secondary NURBS Circular Curve[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2001, 29(12): 37-39 |
| |
| Authors: | Han Ming Kong Yazhou Dong Yangbin Huang Shuhuai Senior Engineer College of Material. Sci. & Eng. HUST Wuhan China. |
| |
| Affiliation: | Han Ming Kong Yazhou Dong Yangbin Huang Shuhuai Senior Engineer, College of Material. Sci. & Eng.,HUST,Wuhan 430074,China. |
| |
| Abstract: | When a circular arc is represented by NURBS curves, it is difficult to find out a universal arithmetic to satisfy the characteristic of fewer control vertexes, compact convexity and optimistic parameterization because of the different center angle and direction. Starting with the method of inserting knots, a new way based on identically parting the center angle to express the circular arc by NURBS curves of degree two is suggested in this paper. |
| |
| Keywords: | NURBS curve weighting factor parameterization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
