jojojojo2002 原文C#实现CAD数据转shape或mdb
本文所指的CAD数据为不带空间参考和扩展数据的数据。如果CAD带了空间参考或是扩展属性数据的话，就要采用图形和属性分离的方法转CAD数据，即图形转完后需要挂接属性数据库。这里就不详细说明了. ArcGIS和CAD对空间数据的归纳有所不同，在AutoCad中，点线面可以在同一个图层中，但是在ArcGIS中，点线面被严格的区分为了point、polyline和polygon三种类型的图层，所以直接用ArcCatalog查看CAD数据时会看到五个图层（点线面、注记和Multipatch） 话不多说了，进入主题吧。
下面的方法实现了点线面图层转成Shape文件：
public bool CadDataToShape(string _cadFilePath) { //工作空间 IWorkspaceFactory pWorkspaceFactory; IFeatureWorkspace pFeatureWorkspace; IFeatureLayer pFeatureLayer; IFeatureDataset pFeatureDataset;//图层对应数据集 ESRI.ArcGIS.ConversionTools.FeatureClassToFeatureClass feaTofea = new FeatureClassToFeatureClass(); ESRI.ArcGIS.Geoprocessor.Geoprocessor pGeoPro = new ESRI.ArcGIS.Geoprocessor.Geoprocessor(); try { string strFullPath = _cadFilePath; int index = strFullPath.LastIndexOf("\\"); string filePath = strFullPath.Substring(0, index); string fileName = strFullPath.Substring(index + 1); string DataSaveFilePath=@"D:\CADToShape\"; cadGISInfo = new stMdbInfo(); cadGISInfo.mdbFeaturesName = new List<string>(); cadGISInfo.mdbname = fileName; //打开cad数据集 pWorkspaceFactory = new CadWorkspaceFactoryClass(); pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0); if (Directory.Exists(DataSaveFilePath + @"\\" + fileName)) { DirectoryInfo dirInfo = new DirectoryInfo(DataSaveFilePath + @"\\" + fileName); foreach (FileInfo file in dirInfo.GetFiles()) { file.Delete(); } Directory.Delete(DataSaveFilePath + @"\\" + fileName); } Directory.CreateDirectory(DataSaveFilePath + @"\\" + fileName); cadGISInfo.mdbfilepath = DataSaveFilePath + @"\\" + fileName; //打开一个要素集 pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(fileName);
}
