摘要
工程图中的标题栏和明细栏是产品数据集中管理的重要数据来源.出于重用CAD数据的考虑,提出了一种有效的工程图零部件信息提取方法.通过分析工程图中标题栏和明细栏的形式,从宏观布局和微观结构出发归纳了表格的位形特征;提出了基于单元格和特征点的图纸数据自动提取策略,详细介绍了算法思想和实施步骤;开发了实用程序并在工程项目中得到应用.
The title and bill of material in engineering drawings are important data source for product data integrated management. In order to reuse the CAD data, the paper presents an effective method for extracting part information from existing engineering drawings. Through analyzing the format of title and bill of material, several shape-position characteristics of tables are summed up from the view of macro-layout and microstructure. A new method to automatically extracting drawing information based on cell-grid and feature-point is proposed along with its algorithm principle and implementation steps. A software package based on the method mentioned above is developed and used in practice.
出处
《计算机辅助设计与图形学学报》
EI
CSCD
北大核心
2005年第8期1883-1888,共6页
Journal of Computer-Aided Design & Computer Graphics
基金
国家"八六三"高技术研究发展计划(2003AA411044)
关键词
计算机应用
单元格
特征点
工程图
零部件信息
computer application
cell-grid
feature-point
engineering drawing
part information
