AE 加载Shapefile、栅格、CAD、PersonGDB、SDE数据.doc

AE 加载Shapefile、栅格、CAD、PersonGDB、SDE数据ArcEngine加载图层的五个步骤1.创建一个类工厂2.使用类工厂创建一个要使用的工作区3.使用工作区打开并得到图层的dataset4.把dataset装入到新建的图层实例5.把图层加载到MapControl控件1. 加载Shapefile数据IWorkspaceFactorypWorkspaceFactory;IFeatureWorkspacepFeatureWorkspace;IFeatureLayerpFeatureLayer;/获取当前路径和文件名OpenFileDialogdlg=newOpenFileDialog();dlg.Filter=Shape(*.shp)|*.shp|AllFiles(*.*)|*.*;dlg.Title=OpenShapefiledata;dlg.ShowDialog();stringstrFullPath=dlg.FileName;if(strFullPath=)return;intIndex=strFullPath.LastIndexOf(/);stringfilePath=strFullPath.Substring(0,Index);stringfileName=strFullPath.Substring(Index+1);/打开工作空间并添加shp文件pWorkspaceFactory=newShapefileWorkspaceFactoryClass(); pFeatureWorkspace=(IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath,0);pFeatureLayer=newFeatureLayerClass();pFeatureLayer.FeatureClass=pFeatureWorkspace.OpenFeatureClass(fileName);pFeatureLayer.Name=pFeatureLayer.FeatureClass.AliasName;axMapControl1.Map.AddLayer(pFeatureLayer);axMapControl1.ActiveView.Refresh();2.加载栅格数据IWorkspaceFactorypWorkspaceFactory;IRasterWorkspacepRasterWorkspace;OpenFileDialogdlg=newOpenFileDialog();dlg.Filter=LayerFile(*.lyr)|*.jpg;*.bmp;*.tiff;dlg.Title=OpenRasterDataFile;dlg.ShowDialog();/获取当前路径和文件名stringstrFullPath=dlg.FileName;if(strFullPath=)return;intIndex=strFullPath.LastIndexOf(/);stringfileName=strFullPath.Substring(Index+1);stringfilePath=strFullPath.Substring(0,Index);pWorkspaceFactory=newRasterWorkspaceFactoryClass();pRasterWorkspace=(IRasterWorkspace)pWorkspaceFactory.OpenFromFile(filePath,0);IRasterDatasetpRasterDataset=(IRasterDataset)pRasterWorkspace.OpenRasterDataset(fileName);IRasterLayerpRasterLayer=newRasterLayerClass();pRasterLayer.CreateFromDataset(pRasterDataset);axMapControl1.Map.AddLayer(pRasterLayer);axMapControl1.ActiveView.Refresh();3.加载CAD数据1IWorkspaceFactorypWorkspaceFactory;2IFeatureWorkspacepFeatureWorkspace;3IFeatureLayerpFeatureLayer;4IFeatureDatasetpFeatureDataset;5/获取当前路径和文件名6OpenFileDialogdlg=newOpenFileDialog();7dlg.Filter=CAD(*.dwg)|*.dwg|AllFiles(*.*)|*.*;8dlg.Title=OpenCADDatafile;9dlg.ShowDialog();10stringstrFullPath=dlg.FileName;11if(strFullPath=)return;12intIndex=strFullPath.LastIndexOf(/);13stringfilePath=strFullPath.Substring(0,Index);14stringfileName=strFullPath.Substring(Index+1);15/打开CAD数据集16pWorkspaceFactory=newCadWorkspaceFactoryClass();17pFeatureWorkspace=(IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath,0);18/打开一个要素集19pFeatureDataset=pFeatureWorkspace.OpenFeatureDataset(fileName);20/IFeaturClassContainer可以管理IFeatureDataset中的每个要素类21IFeatureClassContainerpFeatClassContainer=(IFeatureClassContainer)pFeatureDataset;22/对CAD文件中的要素进行遍历处理23for(inti=0;ipFeatClassContainer.ClassCount-1;i+)2425IFeatureClasspFeatClass=pFeatClassContainer.get_Class(i);26if(pFeatClass.FeatureType=esriFeatureType.esriFTCoverageAnnotation)27/如果是注记，则添加注记层28pFeatureLayer=newCadAnnotationLayerClass();29else/如果是点、线、面，则添加要素层3031pFeatureLayer=newFeatureLayerClass();32pFeatureLayer.Name=pFeatClass.AliasName;33pFeatureLayer.FeatureClass=pFeatClass;34axMapControl1.Map.AddLayer(pFeatureLayer);35axMapControl1.ActiveView.Refresh();36374.加载PersonGeodatabase数据1IWorkspaceFactorypAccessWorkspaceFactory;2IFeatureWorkspacepFeatureWorkspace;3IFeatureLayerpFeatureLayer;4IFeatureDatasetpFeatureDataset;56/获取当前路径和文件名7OpenFileDialogdlg=newOpenFileDialog();8dlg.Filter=PersonalGeodatabase(*.mdb)|*.mdb|AllFiles(*.*)|*.*;9dlg.Title=OpenPersonGeodatabasefile;10dlg.ShowDialog();11stringstrFullPath=dlg.FileName;12if(strFullPath=)return;1314/打开personGeodatabase,并添加图层15pAccessWorkspaceFactory=newAccessWorkspaceFactoryClass();16/打开工作空间并遍历数据集17IWorkspacepWorkspace=pAccessWorkspaceFactory.OpenFromFile(strFullPath,0);18IEnumDatasetpEnumDataset=pWorkspace.get_Datasets(ESRI.ArcGIS.Geodatabase.esriDatasetType.esriDTAny);19pEnumDataset.Reset();20IDatasetpDataset=pEnumDataset.Next();21/如果数据集是IFeatureDataset,则遍历它下面的子类22if(pDatasetisIFeatureDataset)2324pFeatureWorkspace=(IFeatureWorkspace)pAccessWorkspaceFactory.OpenFromFile(strFullPath,0);25pFeatureDataset=pFeatureWorkspace.OpenFeatureDataset(pDataset.Name);26IEnumDatasetpEnumDataset1=pFeatureDataset.Subsets;27pEnumDataset1.Reset();28IDatasetpDataset1=pEnumDataset1.Next();29/如果子类是FeatureClass，则添加到axMapControl1中30if(pDataset1isIFeatureClass)3132pFeatureLayer=newFeatureLayerClass();33pFeatureLayer.FeatureClass=pFeatureWorkspace.OpenFeatureClass(pDataset1.Name);34pFeatureLayer.Name=pFeatureLayer.FeatureClass.AliasName;35axMapControl1.Map.AddLayer(pFeatureLayer);36axMapControl1.ActiveView.Refresh();3738else3940MessageBox.Show(NoFeatureLayer!);414243else4445pFeatureWorkspace=(IFeatureWorkspace)pWorkspace;46pFeatureLayer=newFeatureLayerClass();47pFeatureLayer.FeatureClass=pFeatureWorkspace.OpenFeatureClass(图层名);48pFeatureLayer.Name=pFeatureLayer.FeatureClass.AliasName;49axMapControl1.Map.AddLayer(pFeatureLayer);50axMapControl1.ActiveView.Refresh();515.加载SDE数据库数据1publicESRI.ArcGIS.Geodatabase.IWorkspacearcSDEWorkspaceOpen(Stringserver,Stringinstance,Stringuser,Stringpassword,Stringdatabase,Stringversion)23try45/Createandpopulatethepropertyset6ESRI.ArcGIS.esriSystem.IPropertySetpropertySet=newESRI.ArcGIS.esriSystem.PropertySetClass();7propertySet.SetProperty(SERVER,server);8propertySet.SetProperty(INSTANCE,instance);9propertySet.SetProperty(DATABASE,database);10propertySet.SetProperty(USER,user);11propertySet.SetProperty(PASSWORD,password);12propertySet.SetProperty(VERSION,version);1314ESRI.ArcGIS.Geodatabase.IWorkspaceFactory2workspaceFacto