基于B-Rep模型的三维实体的真实感显示  

Realistic Representation of B-Rep Model-Based 3D Solid

作　　者：秦绪佳[1] 纪凤欣[1] 高兆法[1] 欧宗瑛[1] 

机构地区：[1]大连理工大学机械系CAD&CG研究所,大连116024

出　　处：《机械科学与技术》2001年第2期283-285,共3页Mechanical Science and Technology for Aerospace Engineering

基　　金：中国科学院现代制造CAD/CAM技术开放实验室资助项目! (No.990 9)

摘　　要：介绍了基于 B- Rep模型的三维实体数据结构。通过对 B- Rep模型表达的三维实体的表面进行 Delau-nay三角剖分 ,对离散后的曲面采用明暗处理技术 ,实现了三维实体的真实感显示 ,获得了效果逼真的三维实体真实感图形。A data structure of B-Rep model-based 3D solid is introduced in this paper. The surfaces of 3D solid represented by B-Rep model are triangulated with Delaunary triangulation method. A special smooth shading technique is also introduced in this paper for upgrading the realistic representation quality of discrete curved surfaces. High quality representation result is obtained by using the techniques described above.

关 键 词：三维实体 真实感显示 B-REP模型 Delaunay三角部分 计算机图形学 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]