标签：blog http os 文件 数据 io for art
1.加载Shapefile数据
IWorkspaceFactory pWorkspaceFactory; IFeatureWorkspace pFeatureWorkspace; IFeatureLayer pFeatureLayer; //获取当前路径和文件名 OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Shape(*.shp)|*.shp|All Files(*.*)|*.*"; dlg.Title = "Open Shapefile data"; dlg.ShowDialog(); string strFullPath = dlg.FileName; if (strFullPath == "") return; int Index = strFullPath.LastIndexOf("//"); string filePath = strFullPath.Substring(0, Index); string fileName = strFullPath.Substring(Index + 1); //打开工作空间并添加shp文件 pWorkspaceFactory = new ShapefileWorkspaceFactoryClass(); pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0); pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(fileName); pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName; axMapControl1.Map.AddLayer(pFeatureLayer); axMapControl1.ActiveView.Refresh();
2.加载栅格数据
IWorkspaceFactory pWorkspaceFactory; IRasterWorkspace pRasterWorkspace; OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Layer File(*.lyr)|*.jpg;*.bmp;*.tiff"; dlg.Title = "Open Raster Data File"; dlg.ShowDialog(); //获取当前路径和文件名 string strFullPath = dlg.FileName; if (strFullPath == "") return; int Index = strFullPath.LastIndexOf("//"); string fileName = strFullPath.Substring(Index + 1); string filePath = strFullPath.Substring(0, Index); pWorkspaceFactory = new RasterWorkspaceFactoryClass(); pRasterWorkspace = (IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0); IRasterDataset pRasterDataset = (IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName); IRasterLayer pRasterLayer = new RasterLayerClass(); pRasterLayer.CreateFromDataset(pRasterDataset); axMapControl1.Map.AddLayer(pRasterLayer); axMapControl1.ActiveView.Refresh();
3.加载CAD数据
IWorkspaceFactory pWorkspaceFactory; IFeatureWorkspace pFeatureWorkspace; IFeatureLayer pFeatureLayer; IFeatureDataset pFeatureDataset; //获取当前路径和文件名 OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "CAD(*.dwg)|*.dwg|All Files(*.*)|*.*"; dlg.Title = "Open CAD Data file"; dlg.ShowDialog(); string strFullPath = dlg.FileName; if (strFullPath == "") return; int Index = strFullPath.LastIndexOf("//"); string filePath = strFullPath.Substring(0, Index); string fileName = strFullPath.Substring(Index + 1); //打开CAD数据集 pWorkspaceFactory = new CadWorkspaceFactoryClass(); pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0); //打开一个要素集 pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(fileName); //IFeaturClassContainer可以管理IFeatureDataset中的每个要素类 IFeatureClassContainer pFeatClassContainer = (IFeatureClassContainer)pFeatureDataset; //对CAD文件中的要素进行遍历处理 for (int i = 0; i < pFeatClassContainer.ClassCount - 1; i++)
{
IFeatureClass pFeatClass = pFeatClassContainer.get_Class(i); if (pFeatClass.FeatureType == esriFeatureType.esriFTCoverageAnnotation) //如果是注记，则添加注记层 pFeatureLayer = new CadAnnotationLayerClass(); else//如果是点、线、面，则添加要素层
{ pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.Name = pFeatClass.AliasName; pFeatureLayer.FeatureClass = pFeatClass; axMapControl1.Map.AddLayer(pFeatureLayer); axMapControl1.ActiveView.Refresh();
}
}4.加载PersonGeodatabase数据
IWorkspaceFactory pAccessWorkspaceFactory; IFeatureWorkspace pFeatureWorkspace; IFeatureLayer pFeatureLayer; IFeatureDataset pFeatureDataset; //获取当前路径和文件名 OpenFileDialog dlg = new OpenFileDialog(); dlg.Filter = "Personal Geodatabase(*.mdb)|*.mdb|All Files(*.*)|*.*"; dlg.Title = "Open PersonGeodatabase file"; dlg.ShowDialog(); string strFullPath = dlg.FileName; if (strFullPath == "") return; //打开personGeodatabase,并添加图层 pAccessWorkspaceFactory = new AccessWorkspaceFactoryClass(); //打开工作空间并遍历数据集 IWorkspace pWorkspace = pAccessWorkspaceFactory.OpenFromFile(strFullPath, 0); IEnumDataset pEnumDataset = pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny); pEnumDataset.Reset(); IDataset pDataset = pEnumDataset.Next(); //如果数据集是IFeatureDataset,则遍历它下面的子类 if (pDataset is IFeatureDataset) { pFeatureWorkspace = (IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(strFullPath, 0); pFeatureDataset = pFeatureWorkspace.OpenFeatureDataset(pDataset.Name); IEnumDataset pEnumDataset1 = pFeatureDataset.Subsets; pEnumDataset1.Reset(); IDataset pDataset1 = pEnumDataset1.Next(); //如果子类是FeatureClass，则添加到axMapControl1中 if (pDataset1 is IFeatureClass) { pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass(pDataset1.Name); pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName; axMapControl1.Map.AddLayer(pFeatureLayer); axMapControl1.ActiveView.Refresh(); } else { MessageBox.Show("No FeatureLayer!"); } } else { pFeatureWorkspace = (IFeatureWorkspace)pWorkspace; pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.FeatureClass = pFeatureWorkspace.OpenFeatureClass("图层名"); pFeatureLayer.Name = pFeatureLayer.FeatureClass.AliasName; axMapControl1.Map.AddLayer(pFeatureLayer); axMapControl1.ActiveView.Refresh(); }5.加载SDE数据库数据
public ESRI.ArcGIS.Geodatabase.IWorkspace arcSDEWorkspaceOpen(String server, String instance, String user, String password, String database, String version) { try { // Create and populate the property set ESRI.ArcGIS.esriSystem.IPropertySet propertySet = new ESRI.ArcGIS.esriSystem.PropertySetClass(); propertySet.SetProperty("SERVER", server); propertySet.SetProperty("INSTANCE", instance); propertySet.SetProperty("DATABASE", database); propertySet.SetProperty("USER", user); propertySet.SetProperty("PASSWORD", password); propertySet.SetProperty("VERSION", version); ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2 workspaceFactory; workspaceFactory = (ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2)new SdeWorkspaceFactoryClass(); return workspaceFactory.Open(propertySet, 0); } catch (Exception e) { throw new Exception(String.Format("arcSDEWorkspaceOpen: {0}", e.Message), e); } } IWorkspace pWorkspace = arcSDEWorkspaceOpen("计算机名", "5151", "数据库用户", "密码", "", "sde.DEFAULT"); IFeatureWorkspace pFeattureWS = (IFeatureWorkspace)pWorkspace; IFeatureClass pFeatureClass = pFeattureWS.OpenFeatureClass("图层名"); IFeatureLayer pFeatureLayer = new FeatureLayerClass(); pFeatureLayer.FeatureClass = pFeatureClass; axMapControl1.AddLayer(pFeatureLayer); axMapControl1.Refresh(); ArcGIS Engine中加载数据,布布扣,bubuko.com
标签：blog http os 文件 数据 io for art
原文地址：http://www.cnblogs.com/qiuzhongyang/p/3874122.html
