ArcGIS Engine基础实战.ppt

ArcGISEngine基础介绍,Esri西安分公司姚啸,介绍内容,ArcGISEngine简介创建第一个ArcGISEngine程序练习DEMO,ArcGISEngeine简介,ArcGISEngineDeveloperKit,开发包是组件,APIs和工具的集合开发人员可以用来创建高级的GIS应用组件Engine库制图、绘制、选择、编辑等Control库地图控件、布局控件、工具条等APIsCOM、.NET、Java、C+工具文档、开发工具,ArcGISEngine功能框架,基本服务应用层需要用到的ArcObjects核心对象几何图形的操作与显示数据访问地理数据集，矢量，栅格数据地图分析属性、空间查询，地理数据处理地图显示渲染、标注、制图表达开发组件各种应用层面上的Control及Commandslayer.ShowTips=true;,ToolTiptootip1=newToolTip;tootip1.SetToolTip(axMapControl1,这是一个提示);,PageLayoutControl控件,PageLayoutControl封装PageLayoutcoclass绘制地图元素创建版面视图打印设置当前工具加载地图文档库PageLayoutControl.ocx,PageLayoutControl控件,使用PageLayout来访问其它对象Elements(例子代码MapElements)FrameElementsMapFrameMapSurroundFrameGraphicElementsPictureElements,使用elements,关于elements有很多高级的成员函数IPageLayoutControlAddElementFindElementByNameLocateFrontElementGraphicsContainer,地图上显示查询结果element,查询结果的渲染,ISimpleMarkerSymbolsimpleMarkerSymbol=newSimpleMarkerSymbolClass();simpleMarkerSymbol.Color=rgb;simpleMarkerSymbol.Size=30;IMarkerElementmarkerElement=newMarkerElementClass();markerElement.Symbol=simpleMarkerSymbol;element=(IElement)markerElement;element.Geometry=point;graphicsContainer=(IGraphicsContainer)map;graphicsContainer.AddElement(element,0);,使用地图文档,MXD文件是结构化的存储文档(保存路径)通常由ArcMap创建包含持久对象Maps,Layers,PageLayout,MapDocument使以下成为可能读取mxd,lyr,mxt,andpmffiles写新的mxdfiles访问mapdocument的内容,IMapDocument与mxd,读取和写地图文档的成员函数Open:打开已经存在的地图文档(mxd,mxt,lyr,pmf)SaveAs:保存当前文档到新的文件CheckMxFile：检查mxd是否存在LoadMxFile：加载mxd文档ReadMxMaps：读mxd文档New:新建mxd文档Save:保存mxd文档,加载mxd,LoadMxFile,if(openFileDialog2.ShowDialog()=DialogResult.OK)stringFilePath=openFileDialog2.FileName;if(axMapControl1.CheckMxFile(FilePath)axMapControl1.MousePointer=ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerHourglass;axMapControl1.LoadMxFile(FilePath,0,Type.Missing);axMapControl1.MousePointer=ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerDefault;elseMessageBox.Show(FilePath+isnotavaildArcMapdocument);return;,访问地图文档中的对象,控件可以直接引用对象(MapandPageLayout)或访问自己的拷贝Reference直接Copy使用ObjectCopy避免共享引用深度复制,IMapDocumentmapdoc=newMapDocument();axMapControl1.Map=mapdoc.get_Map(0);,IObjectCopyobjectcopy=newObjectCopyClass();IPageLayoutpagelayout=objectcopy.Copy(mapdoc.PageLayout)asIPageLayout;,框架控件,ToolbarControl和TOCControl被设计成和其它控件协同工作通过一个buddy控件自动捆绑在一起根据彼此的状态通信和同步例子:activetool,layervisibility,BuddyControl,Toolbar,TOC,命令和工具,提供超过100个工具和命令,TocControl,显示所有的图层和符号Simplesymbols,renderersGrouplayers控制图层可视性必须调用SetBuddyControl库TOCControl.ocx,ToolbarControl,自定义commands,tools和menus的容器允许命令和以下控件对象进行交互Map,PageLayout,Scene,和Globe必须调用SetBuddyControl库ToolbarControl.ocx,制图控件命令,系统提供的控件命令,工具,工具条,和菜单命令和工具漫游,缩放,打开地图,图形绘制,工具条要素选择,绘图,地图导航,和pagelayout菜单要素选择和地图浏览库esriCommandControls.olb参考对象模型图或技术文档,创建第一个ArcGISEngeine应用程序,创建一个控件应用程序使用控件成员使用工具条和TOC控件加载MXD文档保存mxd文档打开shp,开发环境,COMVisualStudio6.0(VB、VC+)、DelphiArcGISEngine10不再支持VB6.0.NETVisualStudio.NET(VB.NET、C#、VC+.NET)ArcGISEngine10.1不支持VS2008C+VisualStudio6.0、BorlandC+Builder、C+JavaJBuilder、Eclipse、JDK,开发环境,安装VS2012安装ArcGISSDKDeveloperKitreturn;,打开mxd,if(openFileDialog2.ShowDialog()=DialogResult.OK)stringFilePath=openFileDialog2.FileName;if(axMapControl1.CheckMxFile(FilePath)axMapControl1.MousePointer=ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerHourglass;axMapControl1.LoadMxFile(FilePath,0,Type.Missing);axMapControl1.MousePointer=ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerDefault;elseMessageBox.Show(FilePath+isnotavaildArcMapdocument);return;,打开shp,打开shp/axMapControl1.Map.ClearLayers();IWorkspaceFactorypWorkspaceFactory;IFeatureWorkspacepFeatureWorkspace;IFeatureLayerpFeatureLayer;this.openFileDialog1.Filter=shp文件|*.shp;if(this.openFileDialog1.ShowDialog()=DialogResult.OK)this.textBox1.Text=this.openFileDialog1.FileName.ToString();stringstrFullPath=openFileDialog1.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();/创建工作空间pFeatureWorkspace=(IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath,0);/打开矢量数据所在的空间pFeatureLayer=newFeatureLayerClass();/创建一个要素图层pFeatureLayer.FeatureClass=pFeatureWorkspace.OpenFeatureClass(fileName);/将要素类加如到要素图层pFeatureLayer.Name=pFeatureLayer.FeatureClass.AliasName;/将要素类的名称赋值给要素图层axMapControl1.Map.AddLayer(pFeatureLayer);/将图层加到地图控件axMapControl1.ActiveView.Refresh();/刷新地图,保存mxd,IMapDocumentmapDoc4=newMapDocumentClass();mapDoc4.New(F:/teuu5.mxd);IMxdContentsmxdContents=axMapControl1.MapasIMxdContents;mapDoc4.ReplaceContents(mxdContents);mapDoc4.Save(false,true);mapDoc4.Close();,练习DEMO,打开数据源,打开gdbIWorkspaceFactoryworkspaceFactory=newFileGDBWorkspaceFactoryClass();workspace=workspaceFactory.OpenFromFile(“D:/data.gdb”,0);IFeatureWorkspacepFeatWorkspace=workspaceasIFeatureWorkspace;IFeatureClasspFeatureClass=pFeatWorkspace.OpenFeatureClass(Water),打开sdeIPropertySetpropertySet=newPropertySetClass();propertySet.SetProperty(SERVER,server);propertySet.SetProperty(INSTANCE,instance);propertySet.SetProperty(DATABASE,database);propertySet.SetProperty(USER,user);propertySet.SetProperty(PASSWORD,password);propertySet.SetProperty(VERSION,version);IWorkspaceFactoryworkspaceFactory=newSdeWorkspaceFactoryClass();workspace=workspaceFactory.Open(propertySet,0);,属性查询,ILayerlayer=axMapControl1.get_Layer(0);IFeatureLayerfeatureLayer=layerasIFeatureLayer;/获取featureLayer的featureClassIFeatureClassfeatureClass=featureLayer.FeatureClass;IQueryFilterqueryFilter=newQueryFilterClass();IFeatureCursorfeatureCusor;stringfilter=DLMC=旱地;queryFilter.WhereClause=filter;featureCusor=featureClass.Search(queryFilter,true);if(featureCusor!=null)IFeaturefea=featureCusor.NextFeature();while(fea!=null)if(featureCusor=null)return;IGeometrygeom=fea.Shape;IPolygonpolygon=geomasIPolygon;Common.renderPolygon(polygon,axMapControl1.ActiveView,axMapControl1.Map);fea=featureCusor.NextFeature();,查询所有旱地,绘制多边形,IFillShapeElementpPolygonElement;ISimpleFillSymbolpSimpleFillSymbol=newSimpleFillSymbolClass();IPolygonpPolygon=newPolygonClass();IRubberBandpRubberBand=newRubberPolygonClass();ISimpleLineSymbolpSimpleLineSymbol=newSimpleLineSymbolClass();pPolygonElement=newPolygonElementClass();if(e.button=1)pPolygon=(IPolygon)pRubberBand.TrackNew(axMapControl1.ActiveView.ScreenDisplay,null);pSimpleLineSymbol.Width=2;pSimpleLineSymbol.Style=esriSimpleLineStyle.esriSLSSolid;pSimpleLineSymbol.Color=Common.GetRGBColor(46,24,63);pSimpleFillSymbol.Color=Common.GetRGBColor(11,200,145);pSimpleFillSymbol.Outline=pSimpleLineSymbol;IElementpElement=(IElement)pPolygonElement;pElement.Geometry=pPolygon;pPolygonElement.Symbol=pSimpleFillSymbol;IGraphicsContainerpGraphicsContainer=(IGraphicsContainer)axMapControl1.Map;pGraphicsContainer.AddElement(IElement)pPolygonElement,0);axMapControl