基于伪直母线的复杂曲面自适应分片与展开  

A Complex Surface Adaptive Segment and Development Algorithm Based on Its Quasi-Rulings

作　　者：陈动人[1] 王国瑾[2] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,浙江杭州310027 [2]浙江大学数学系图像图形研究所,浙江杭州310027

出　　处：《软件学报》2003年第3期660-665,共6页Journal of Software

基　　金：Supported by the National Natural Science Foundation of China under Grant No.69973041 (国家自然科学基金); the National Grand Fundamental Research 973 Program of China under Grant No.G1998030600 (国家重点基础研究发展规划(973)); the Natural Science F

摘　　要：利用自适应分片技术把拓扑结构复杂的曲面展开为平面.首先把CAD/CAM常用的参数曲面转化为三角剖分模型,求出曲面的伪直母线;然后基于伪直母线对曲面进行自适应分片;最后展开每一片曲面区域.该算法可以直接应用于计算机辅助设计、制造和计算机图形学的纹理映射,也可以应用于实际工业造型中的后继 处理.Using an adaptive segment technique, a topological complex 3D surface can be developed into its corresponding 2D pattern. Firstly, triangular facet model is used to present a complex surface, and its quasi-rulings are computed. Secondly, the 3D surface is adaptively segmented based on its quasi-ruling. Finally, each segment is flatted into 2D pattern. This development algorithm can be directly used to computer aided design or texture mapping. It can be also applied to post-process in practical industrial modeling.

关 键 词：伪直线线 复杂曲面 自适应分片 计算机辅助设计 CAD CAM 可展曲面 直纹面 曲面展开 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]