二维视图生成三维实体的几何推理规则研究  

Study on Geometric Reasoning Rule for Construction of 3D Solid Part from 2D Orthographic Views

作　　者：窦万峰[1] 王保保[1] 徐国华[1] 

机构地区：[1]西安电子科技大学

出　　处：《机械科学与技术》1998年第1期153-155,共3页Mechanical Science and Technology for Aerospace Engineering

基　　金：高校博士基金资助项目

摘　　要：图纸扫描处理和识别、几何推理规则、特征识别和提取以及零件基体生成和重构是二维视图到三维实体生成的关键技术。本文在深入地研究了二维图形到三维图形的自动生成的基础上，讨论了实体几何推理规则和成形特征分类，建立了零件识别规则库，并在Ａｕｔｏ－ＣＡＤＲ１２．０上进行了验证。Drawing scaning and recognizing geometric reasoning feature recognition and extraction, and construction are key techniques of the construction of 3D part from 2D engineering drawing. Based on the research of generation of 3D part form 2D engineering drawing, this paper discusses geometric reasoning rules for the extraction of form features and feature classification and gives feature recognition rules, which is verified on auto CAD R12.0.

关 键 词：工程二维图纸 三维实体 几何推理 机械图 CAD 

分 类 号：TH126[机械工程—机械设计及理论] TP391.72[自动化与计算机技术—计算机应用技术]