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);