CAD与GIS平台DLG数据转换一致性检测

Consistency Checking of DLG Data Transformation form CAD to GIS Platform

基于DLG数据从CAD导入GIS平台DLG存在一致性转换的问题,从分析DLG数据在CAD与GIS平台的数据特点着手,提出了对DLG要素按照点、线、面进行唯一标识,分布统计在二者平台下的坐标、长度、面积,实现CAD与GIS平台数据转换的一致性检测。

On the basis of the consistency transformation problem of DLG data from CAD into GIS platform,this paper analyzed the data characteristics of DLG in CAD and GIS platform at first.And then,the paper identified the DLG elements in accordance with the dot,line,face uniquely,and calculated the coordinates,length,area under the two platforms,and realized the consistency checking for data conversion of the CAD and GIS platform.