基于ArcGIS的CAD三维模型简化与转换

Simplification and Conversion of CAD Three-dimensional Model Based on ArcGIS

根据CAD三维建模以及CAD与ArcGIS数据转换方法,结合不同地理实体的特点,对三维建模的方法进行分类研究,得到了三维建模的简化方法以及CAD数据向Shapefile格式转换的方法,以便于进一步的处理与分析。通过将不同图层的DWG文件单独保存并在ArcGIS中批量转换,实现了CAD三维模型在ArcGIS平台下的显示,解决了两者因软件平台的差异和数据结构不同产生的数据丢失问题。

According to the principles and key technologies of the 3D CAD modeling and data conversion between CAD and Arc GIS, combining with the characteristics of different geographical entities, this paper classified the methods of 3D modeling. And then, the paper obtained the best method of model simplification and the optimal method of data conversion, which was facilitating to further processing and analysis. This method made the3 D CAD model fully presenting under the Arc GIS platform by storing the DWG files of different layers separately, and by batch converting the files in Arc GIS. The method can solve the problems of missing data, which due to differences between the two software platforms and data structural problems.