AE开发之地图操作.doc

using System;using System.Collections.Generic;using System.Linq;using System.Text;using ESRI.ArcGIS.Carto;using ESRI.ArcGIS.Geometry;using ESRI.ArcGIS.Display;using ESRI.ArcGIS.Controls;namespace GISExercise class OperateGeomap /定义鼠标与控件交互式操作的公共方法 public void OperateGeomaP1(AxMapControl axMapControl1, IMapControlEvents2_OnMouseDownEvent e, string strOperType1) switch (strOperType1) /用鼠标拖曳确定地图显示范围 case LKXS: axMapControl1.MousePointer = esriControlsMousePointer.esriPointerCrosshair;/改变鼠标样式 axMapControl1.Extent = axMapControl1.TrackRectangle();/将地图控件显示范围设置为当前拖曳的矩形区域 axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);/刷新地图 break; /移动地图、地图漫游 case DTMY: axMapControl1.Pan(); break; /绘制点 case HZD: IMap pMap; IActiveView pActiveView; pMap = axMapControl1.Map; pActiveView = pMap as IActiveView; /新建点对象 IPoint pPt; pPt = new PointClass(); pPt.PutCoords(e.mapX, e.mapY); /产生一个Market元素 IMarkerElement pMarkerElement; pMarkerElement = new MarkerElementClass(); /产生修饰Marker元素的Symbol ISimpleMarkerSymbol pMarkerSymbol; pMarkerSymbol = new SimpleMarkerSymbolClass(); /设置符号颜色 IRgbColor pColor; pColor = new RgbColorClass(); pColor.Red = 150; pColor.Blue = 200; pColor.Green = 250; pMarkerSymbol.Color = pColor;/用户动态设定 /设置符号大小 pMarkerSymbol.Size = 10; /设置符号类型 pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSDiamond;/点符号也由用户动态选择 IElement pElement; pElement = pMarkerElement as IElement; /得到Element的接口对象，用于设置元素的Geometry pElement.Geometry = pPt; pMarkerElement.Symbol = pMarkerSymbol; IGraphicsContainer pGraphicsContainer; pGraphicsContainer = pMap as IGraphicsContainer; /将元素添加到Map中 pGraphicsContainer.AddElement(pMarkerElement as IElement, 0); pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); break; /绘制线 case HZX: IMap pMap; IActiveView pActiveView; pMap = axMapControl1.Map; pActiveView = pMap as IActiveView; IPolyline pPolyline; pPolyline = axMapControl1.TrackLine() as IPolyline; /产生一个SimpleLineSymbol符号 ISimpleLineSymbol pSimpleLineSym; pSimpleLineSym = new SimpleLineSymbolClass(); pSimpleLineSym.Style = esriSimpleLineStyle.esriSLSSolid;/需要用户动态选择 IRgbColor pColor; pColor = new RgbColorClass(); pColor.Red = 123; pColor.Blue = 234; pColor.Green = 200; pSimpleLineSym.Color = pColor;/需要用户动态选择 pSimpleLineSym.Width = 1; /产生一个PolylineElement对象 ILineElement pLineEle; pLineEle = new LineElementClass(); IElement pEle; pEle = pLineEle as IElement; pEle.Geometry = pPolyline; /将元素添加到Map对象之中 IGraphicsContainer pGraphicsContainer; pGraphicsContainer = pMap as IGraphicsContainer; pGraphicsContainer.AddElement(pEle, 0); pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); break; /绘制面 case HZM: IMap pMap; IActiveView pActiveView; pMap = axMapControl1.Map; pActiveView = pMap as IActiveView; IPolygon pPolygion; pPolygion = axMapControl1.TrackPolygon() as IPolygon; /产生一个SimpleFillSymbol符号 ISimpleFillSymbol pSimpleFillSym; pSimpleFillSym = new SimpleFillSymbolClass(); pSimpleFillSym.Style = esriSimpleFillStyle.esriSFSDiagonalCross;/需要用户动态选择 IRgbColor pColor; pColor = new RgbColorClass(); pColor.Red = 123; pColor.Blue = 234; pColor.Green = 200; pSimpleFillSym.Color = pColor;/需要用户动态选择 /产生一个PolygonElement对象 IFillShapeElement pPolygonEle; pPolygonEle = new PolygonElementClass(); pPolygonEle.Symbol = pSimpleFillSym; IElement pEle; pEle = pPolygonEle as IElement; pEle.Geometry = pPolygion; /将元素添加到Map对象之中 IGraphicsContainer pGraphicsContainer; pGraphicsContainer = pMap as IGraphicsContainer; pGraphicsContainer.AddElement(pEle, 0); pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); break; /地图标注 case DTBZ: int x,y,z; /地图标注 IMap pMap; IActiveView pActiveView; pMap = axMapControl1.Map; pActiveView = pMap as IActiveView; ITextElement pTextEle; IElement pEles; /建立文字符号对象，并设置相应的属性 pTextEle = new TextElementClass(); pTextEle.Text = 西安科技大学; pEles = pTextEle as IElement; /设置文字字符的几何形体属性 IPoint pPoint; pPoint = new PointClass(); pPoint.PutCoords(e.mapX, e.mapY); pEles.Geometry = pPoint; /添加到Map对象中，并刷新显示 IGraphicsContainer pGraphicsContainer; pGraphicsContainer = pMap as IGraphicsContainer; pGraphicsContainer.AddElement(pEles, 0); pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null); break; case JLXZJ: /要素选择 /得到一个Envelope对象 IEnvelope pEnv; pEnv = axMapControl1.TrackRectangle(); /新建选择集环境对象 ISelectionEnvironment pSelectionEnv; pSelectionEnv = new SelectionEnvironmentClass(); /改变选择集的默认颜色 IRgbColor pColor; pColor = new RgbColorClass(); pColor.Red = 123; pColor.Blue = 234; pColor.Green = 200; pSelectionEnv.DefaultColor = pColor; /选择要素，并将其放入选择集 axMapControl1.Map.SelectByShape(pEnv, pSelectionEnv, false); axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, null); /需要遍历所选要素 break; /*case SJQC: axMapControl1.Map.C