ArcGIS Engine基础实战.ppt

1、ArcGIS Engine基础介绍,Esri西安分公司 姚啸,介绍内容,ArcGIS Engine简介 创建第一个ArcGIS Engine程序 练习DEMO,ArcGIS Engeine简介,ArcGIS Engine Developer Kit,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 APIs COM、.NET、Java、C+ 工具 文档、开发工具,ArcGIS Engine功能框架,基本服务 应用层需要用到的 ArcObjects 核心对象 几何图

2、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 Commands layer.ShowTips = true;,ToolTip tootip1 = new ToolTip; tootip1.SetToolTip(axMapControl1,这是一个提示);,PageLayoutControl控件,PageLayoutControl 封装PageLayout coclass 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 PageLayoutContro

3、l.ocx,PageLayoutControl控件,使用PageLayout 来访问其它对象 Elements(例子代码 MapElements) FrameElements MapFrame MapSurroundFrame GraphicElements PictureElements,使用elements,关于elements有很多高级的成员函数 IPageLayoutControl AddElement FindElementByName LocateFrontElement GraphicsContainer,地图上显示查询结果element,查询结果的渲染,ISimpleMarke

4、rSymbol simpleMarkerSymbol = new SimpleMarkerSymbolClass(); simpleMarkerSymbol.Color = rgb; simpleMarkerSymbol.Size = 30; IMarkerElement markerElement = new MarkerElementClass(); markerElement.Symbol = simpleMarkerSymbol; element = (IElement)markerElement; element.Geometry = point; graphicsContainer

5、 = (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, and pmf files 写新的 mxd files 访问map document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) Sa

6、veAs: 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) string FilePath = openFileDialog2.FileName; if (axMapControl1.CheckMxFile(FilePath) axMapControl1.MousePointer = ESRI.ArcGIS.Cont

7、rols.esriControlsMousePointer.esriPointerHourglass; axMapControl1.LoadMxFile(FilePath, 0, Type.Missing); axMapControl1.MousePointer = ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerDefault; else MessageBox.Show(FilePath + is not a vaild ArcMap document); return; ,访问地图文档中的对象,控件可以直接引用对象 (Map

8、 and PageLayout) 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,IMapDocument mapdoc = new MapDocument(); axMapControl1.Map = mapdoc.get_Map(0) ;,IObjectCopy objectcopy = new ObjectCopyClass(); IPageLayout pagelayout = objectcopy.Copy(mapdoc.PageLayout) as IPageLayout;,框架控件,ToolbarControl 和 TOCC

9、ontrol 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: active tool, layer visibility,Buddy Control,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 Simple symbols, renderers Group layers 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

10、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ArcGIS Engeine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

11、环境,COM Visual Studio 6.0 (VB、VC+)、Delphi ArcGIS Engine 10 不再支持 VB 6.0 .NET Visual Studio .NET (VB .NET、C#、VC+.NET) ArcGIS Engine 10.1 不支持VS2008 C+ Visual Studio 6.0、Borland C+ Builder、C+ Java JBuilder、Eclipse、JDK,开发环境,安装VS2012 安装ArcGIS SDK Developer Kit return; ,打开mxd,if (openFileDialog2.ShowDialog(

12、) = DialogResult.OK) string FilePath = openFileDialog2.FileName; if (axMapControl1.CheckMxFile(FilePath) axMapControl1.MousePointer = ESRI.ArcGIS.Controls.esriControlsMousePointer.esriPointerHourglass; axMapControl1.LoadMxFile(FilePath, 0, Type.Missing); axMapControl1.MousePointer = ESRI.ArcGIS.Cont

13、rols.esriControlsMousePointer.esriPointerDefault; else MessageBox.Show(FilePath + is not a vaild ArcMap document); return; ,打开shp,打开shp /axMapControl1.Map.ClearLayers(); IWorkspaceFactory pWorkspaceFactory; IFeatureWorkspace pFeatureWorkspace; IFeatureLayer pFeatureLayer; this.openFileDialog1.Filter

14、 = shp文件|*.shp; if (this.openFileDialog1.ShowDialog() = DialogResult.OK) this.textBox1.Text = this.openFileDialog1.FileName.ToString(); string strFullPath = openFileDialog1.FileName; if (strFullPath = ) return; int Index = strFullPath.LastIndexOf(); string filePath = strFullPath.Substring(0, Index);

15、 string fileName = strFullPath.Substring(Index + 1); /打开工作空间并添加shp文件 pWorkspaceFactory = new ShapefileWorkspaceFactoryClass();/创建工作空间 pFeatureWorkspace = (IFeatureWorkspace)pWorkspaceFactory.OpenFromFile(filePath, 0);/打开矢量数据所在的空间 pFeatureLayer = new FeatureLayerClass();/创建一个要素图层 pFeatureLayer.Featur

16、eClass = 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,IMapDocument mapDoc4 = new MapDocumentClass(); mapDoc4.New(

17、F:/teuu5.mxd); IMxdContents mxdContents = axMapControl1.Map as IMxdContents; mapDoc4.ReplaceContents(mxdContents); mapDoc4.Save(false, true); mapDoc4.Close();,练习DEMO,打开数据源,打开gdb IWorkspaceFactory workspaceFactory = new FileGDBWorkspaceFactoryClass(); workspace = workspaceFactory.OpenFromFile(“D:/dat

18、a.gdb”, 0); IFeatureWorkspace pFeatWorkspace = workspace as IFeatureWorkspace;IFeatureClass pFeatureClass = pFeatWorkspace.OpenFeatureClass(Water),打开sde IPropertySet propertySet = new PropertySetClass(); propertySet.SetProperty(SERVER, server); propertySet.SetProperty(INSTANCE, instance); propertySe

19、t.SetProperty(DATABASE, database); propertySet.SetProperty(USER, user); propertySet.SetProperty(PASSWORD, password); propertySet.SetProperty(VERSION, version); IWorkspaceFactory workspaceFactory = new SdeWorkspaceFactoryClass(); workspace = workspaceFactory.Open(propertySet, 0);,属性查询,ILayer layer =

20、axMapControl1.get_Layer(0); IFeatureLayer featureLayer = layer as IFeatureLayer; /获取featureLayer的featureClass IFeatureClass featureClass = featureLayer.FeatureClass; IQueryFilter queryFilter = new QueryFilterClass(); IFeatureCursor featureCusor; string filter = DLMC = 旱地; queryFilter.WhereClause = f

21、ilter; featureCusor = featureClass.Search(queryFilter, true); if (featureCusor != null) IFeature fea = featureCusor.NextFeature(); while(fea != null) if (featureCusor = null) return; IGeometry geom = fea.Shape; IPolygon polygon = geom as IPolygon; Common.renderPolygon(polygon, axMapControl1.ActiveVi

22、ew, axMapControl1.Map); fea = featureCusor.NextFeature(); ,查询所有旱地,绘制多边形,IFillShapeElement pPolygonElement; ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass(); IPolygon pPolygon = new PolygonClass(); IRubberBand pRubberBand = new RubberPolygonClass(); ISimpleLineSymbol pSimpleLineSymbo

23、l = new SimpleLineSymbolClass(); pPolygonElement = new PolygonElementClass(); if (e.button = 1) pPolygon = (IPolygon)pRubberBand.TrackNew(axMapControl1.ActiveView.ScreenDisplay, null); pSimpleLineSymbol.Width = 2; pSimpleLineSymbol.Style = esriSimpleLineStyle.esriSLSSolid; pSimpleLineSymbol.Color =

24、Common.GetRGBColor(46, 24, 63); pSimpleFillSymbol.Color = Common.GetRGBColor(11, 200, 145); pSimpleFillSymbol.Outline = pSimpleLineSymbol; IElement pElement = (IElement)pPolygonElement; pElement.Geometry = pPolygon; pPolygonElement.Symbol = pSimpleFillSymbol; IGraphicsContainer pGraphicsContainer = (IGraphicsContainer)axMapControl1.Map; pGraphicsContainer.AddElement(IElement)pPolygonElement, 0); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);,地图点击绘制