C#实现CAD数据转shape或mdb

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);

}