扩展的角度判别法及其在轮廓搜索中的应用

广东工业大学学报 ›› 2007, Vol. 24 ›› Issue (2): 80-83.

扩展的角度判别法及其在轮廓搜索中的应用

广东工业大学机电工程学院；广东工业大学机电工程学院广东广州510090；广东广州510090；

出版日期:2007-07-02 发布日期:2007-07-02
基金资助:
广东工业大学博士启动基金资助项目(05203);广东工业大学青年基金资助项目(0402022)

The Expanded Turn-to-the-left-most Rule and the Application in Profile Search

(Faculty of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510090,China)

Online:2007-07-02 Published:2007-07-02

摘要/Abstract

摘要： 在角度判别法的基础上,提出了一种轮廓搜索的方法,称为扩展的角度判别法.引入了导引图元的概念,解决了原有的角度判别法在用于轮廓搜索时的不完备性.从相同的起始图元开始进行轮廓搜索时,遇到多分枝的情况下,通过导引图元的指导,可以搜索到角度判别法搜索不到的轮廓.给出了一个轮廓搜索的对比实例.

关键词: 角度判别法；轮廓；导引图元；二维转三维；

Abstract: An approach is presented to search profile in engineering drawing based on the turn-to-the-left-most rule.It is called expanded turn-to-the-left-most rule.A term named guiding-line is brought forward for the expanded rule.It could solve the incompletion in searching profile by the quondam rule.Owing to the guide-lines,all the profiles could be found,including those which couldn’t be found through the turn-to-the-left-most rule using the same first profile line.An instance is given to compare the...

Key words: the-turn-to-the-left-most-rule； profile； guide-line； 2D to 3D；

李晋芳；何汉武；杨雪荣；孙健； . 扩展的角度判别法及其在轮廓搜索中的应用[J]. 广东工业大学学报, 2007, 24(2): 80-83.

LI Jin-fang,HE Han-wu,YANG Xue-rong,SUN Jian. The Expanded Turn-to-the-left-most Rule and the Application in Profile Search[J]. Journal of Guangdong University of Technology, 2007, 24(2): 80-83.

参考文献

[1] 李晋芳,施法中. 二维视图到三维几何模型转换中的BOX显示法[J]. 计算机工程. 2005(19)

[2] 李晋芳,施法中. 商品化CAD软件中基于二维视图的三维重建模块的设计与实现[J]. 计算机辅助设计与图形学学报. 2005(04)

[3] 王耘,胡树根,孙伟宁,崔晓峰. 基于节点预处理的环搜索方法[J]. 计算机辅助设计与图形学学报. 2001(09)

[4] Gujar V G,Nagendra I V.Construction of 3D solid objectsfrom orthographic views. Computers and Graphics . 1989

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