| 一种基于快速拟合的NURBS曲面实体建模方法 |
| |
| 引用本文： | 陆亚文,李际军. 一种基于快速拟合的NURBS曲面实体建模方法[J]. 计算机仿真, 2008, 25(10) |
| |
| 作者姓名： | 陆亚文 李际军 |
| |
| 作者单位： | 浙江大学计算机科学与技术学院,浙江,杭州,310027;杭州科技职业技术学院,浙江,杭州,310016;杭州科技职业技术学院,浙江,杭州,310016 |
| |
| 摘 要： | 为了解决实体对象建模时出现的失真性和控制点膨胀的问胚,提出了一种基于NURBS建模的快速拟合算法,算法结合所设计的应用型曲面实体数据结构,针对扫掠实体、直纹实体、蒙皮实体和旋转实体,分别采用整合法、双基面互导求均法、平均法和旋转因子法来计算形成实体所需的最少控制点和W方向节点矢量,将控制点的计算从三维抽象到二维.实验证明算法不仅有效解决了失真性和控制点膨胀的问题,而且还具有通过调节幂次来实现用户的不同需要和运算速度快等优点.
|
| 关 键 词： | 实体建模 非均匀有理样条 曲线曲面 拟合算法 |
An Algorithm for NURBS Volume Modeling Based on Rapid Fitting |
| |
| LU Ya-wen,LI Ji-jan. An Algorithm for NURBS Volume Modeling Based on Rapid Fitting[J]. Computer Simulation, 2008, 25(10) |
| |
| Authors: | LU Ya-wen LI Ji-jan |
| |
| Affiliation: | LU Ya-wen1,2,LI Ji-jun1(1. College of Computer Science,Zhejiang University,Hangzhou Zhejiang 310027,China,2. Hangzhou Vocational College of Science , Technology,Hangzhou Zhejiang 310016,China) |
| |
| Abstract: | In order to resolve the problem of distortion and control point expansion emerging in volume modeling, an algorithm for NURBS volume modeling based on rapid fitting is presented in this paper. While creating the sweeping solid, ruling solid, skinning solid and swinging solid, with the data structure designed for volume modeling, the least control points and W-direction knot vector are computed by adopting the integrating way, basic surface derivatives averaging method,averaging method and gene circumrotatin... |
| |
| Keywords: | Volume modeling NURBS Curve and surface Fitting algorithm |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
