CAD到GIS的批量转换方法比较及其基于ArcEngine的实现

由于CAD与GIS的数据在结构上存在较大的差别,这使得CAD数据不能很好地满足GIS用户的需求;而目前大多数城市的基础地理数据是以CAD的数据格式存在的,所以大批量的数据转换变得尤为必要。本文主要介绍了CAD与GeodataBase数据模型及其区别和目前进行CAD到GIS数据转换的几种方法及其比较。并结合武汉市城市规划信息中心实际,采用AE二次开发方式实现了对武汉市基础地形图的CAD数据到Geodatabase的批量数据转换。

Comparison of methods on batch-conversion from CAD to GIS and its realization based on ArcEngine

The big difference between the CAD and GIS data in the structure makes CAD data not be good to meet the needs of GIS users.At present,basic geographic data of most cities are CAD formats,so mass data conversion is particularly necessary.This paper mainly introduced the difference between CAD data model and GeodataBase data model and made comparison of different methods on batch-conversion from CAD to GIS.At last,combined with the practice of Wuhan Urban Planning Information Center,using AE secondary development,it realized the batch data conversion from the CAD data of the basis of topographic maps to Geodatabase.