多分辨率几何造型系统设计与实现  

Design and Realization of Multi-resolution Geometry Modeling System

作　　者：吴维勇[1] 王英惠[2] 

机构地区：[1]九江学院信息科学与技术学院,江西九江332005 [2]九江学院机械工程学院,江西九江332005

出　　处：《计算机与现代化》2007年第12期7-9,13,共4页Computer and Modernization

基　　金：江西省自然科学基金资助项目(0611036);江西省教育厅资助科技项目(赣教技字[2006]270号)

摘　　要：将小波分析、细分造型、网格化简等多分辨率造型技术与基于NURBS的造型技术相结合,独立开发了多分辨率几何造型系统。给出了改进的辐射边拓扑数据结构,统一表示线性网格曲面和参数曲面以及流形和非流形形体。依据STEP标准定义了几何元素类型,基于UML描述了类结构定义。最后介绍了系统功能模块并给出了运行实例。Combining muhi-resolution modeling technology, such as wavelets analysis, subdivision and mesh simplification, with traditional modeling technology based on NURBS, this paper develops a multi-resolution geometry modeling system. A modified radial-edge topology structure is proposed, expresses manifold and non-manifold shapes of both linear surfaces and parametric sur- faces in tile unified way. Geometry elements are defined in accordance with STEP, and classes＇ structure is described based on UML. The function modules are introduced with some examples in the last part of the paper.

关 键 词：多分辨率造型 小波 细分造型 非均匀有理B样条 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]