综合性地下管线源图的数据提取和分析

THE DATA EXTRACTION AND ANALYSIS FOR THE SOUCE DRAWING OF COMPREHENSINE UNDERGROUND PIPELINE

简要介绍了从外部数据到地下管线信息系统的数据处理流程、DXF图形交换文件的结构组成和层次分布等 ,介绍了 Visual c+ + 6.0设计程序所完成的功能 ,并以详细的实现步骤说明了地下管线的数据提取和分离过程 .

In the paper, first the data processing flow is introduced briefly, which from the outer data to the underground pipeline information system, and the component and layer distribution of DXF(Drawing eXchange Format) document are presented. Second, the function completed by means of Visual C++ 6.0 program is introduced. And then, the data extraction and separation process of underground pipeline with the detailed realizable step are explained.