摘要
给出了实现异构CAD系统间零件库几何信息共享的一种新思路和有效途径 :分析主流通用三维CAD系统的共性 ,补充PLIB标准中零件几何信息模型的高层实体定义 ,进而考虑零件参数化信息和特征信息 ,建立基于特征的零件精确几何表达机制。在此基础上开发的接口实现了异构CAD系统间零件几何信息以及设计意图的共享。
A new idea and approach is put forward to realiz e the sharing of geometric information of part library(PLIB) oriented to heterogen eous CAD systems. It is realized by analyzing the common features of predominant 3-dimensional CAD systems, and adding high level entity definitions. Furthermo re, considering the parametric information and feature information, a feature-b ased explicit geometric representation mechanism is presented. The developed int erface realizes the sharing of geometric information and design intention of par ts oriented to the heterogeneous CAD systems.
出处
《机械科学与技术》
CSCD
北大核心
2004年第10期1166-1168,1214,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
国家高技术研究发展计划 ( 863计划 ) ( 2 0 0 2AA4110 3 0 )资助
关键词
信息交换
几何接口
PLIB
Information exchange
Geometric interface
PLIB
