gis数据格式转换（数据导入）ConvertFeaCls

本文主要对数据导入等里 常用的不同格式数据创建、转换等 进行代码示例。主要用到IFeatureDataConverter.ConvertFeatureClass方法。

 

代码如下，难度不大，只是个技巧问题：

 

函数：

private void ConvertFeaCls(IWorkspace workspaceSource, IWorkspace workspaceTar, stringsSorceFeaClsName, string sTarFeaClsName, string sFeaDTName)

        {

            IFeatureClass feaCls = (workspaceSource asIFeatureWorkspace).OpenFeatureClass(sSorceFeaClsName);

            String shapeFieldName = feaCls.ShapeFieldName;

            int shapeFieldIndex = feaCls.FindField(shapeFieldName);

            IField shapeField = feaCls.Fields.get_Field(shapeFieldIndex);

            IGeometryDef geometryDef = shapeField.GeometryDef;

 

            //create source workspace name  

            IDataset sourceWorkspaceDataset = (IDataset)workspaceSource;

            IWorkspaceName sourceWorkspaceName = (IWorkspaceName)sourceWorkspaceDataset.FullName;

            //create source dataset name  

            IFeatureClassName sourceFeatureClassName = new FeatureClassNameClass();

            IDatasetName sourceDatasetName = (IDatasetName)sourceFeatureClassName;

            sourceDatasetName.WorkspaceName = sourceWorkspaceName;

            sourceDatasetName.Name = sSorceFeaClsName;

 

            //create target workspace name  

            IDataset tarWorkspaceDataset = (IDataset)workspaceTar;

            IWorkspaceName tarWorkspaceName = (IWorkspaceName)tarWorkspaceDataset.FullName;

            //create target dataset name  

            IFeatureClassName tarFeatureClassName = new FeatureClassNameClass();

            IDatasetName tarDatasetName = (IDatasetName)tarFeatureClassName;

            tarDatasetName.WorkspaceName = tarWorkspaceName;

            tarDatasetName.Name = sTarFeaClsName;

 

            IFeatureDatasetName tarFeatureDatasetName = new FeatureDatasetNameClass();

            (tarFeatureDatasetName as IDatasetName).WorkspaceName = tarWorkspaceName;

            (tarFeatureDatasetName as IDatasetName).Name = sFeaDTName;

 

            if (string.IsNullOrEmpty(sFeaDTName))

            {

                tarFeatureDatasetName = null;

            }

 

            IFeatureDataConverter featureDataConverter = new FeatureDataConverterClass();

            featureDataConverter.ConvertFeatureClass(sourceFeatureClassName, null, tarFeatureDatasetName, tarFeatureClassName, geometryDef, feaCls.Fields, "", 1000, 0);    // Check for errors.

        }

 

调用：

           

 IWorkspaceFactory2 workspaceFactory = new ShapefileWorkspaceFactoryClass() asIWorkspaceFactory2;

            IWorkspace workspace = workspaceFactory.OpenFromFile(@"E:jhl", 0);

            IFeatureWorkspace featureWorkspace = (IFeatureWorkspace)workspace;

            IFeatureClass featureClass = featureWorkspace.OpenFeatureClass(Functions.g_ROAD);

           

            IWorkspace workspace2 = workspaceFactory.OpenFromFile(@"E:", 0);

            DeleteShapeFileIFExist(@"E:", "test6");

            ConvertFeaCls(workspace, workspace2, Functions.g_ROAD,  "test6",string.Empty);