form1.cs

很好的带有编辑功能、量算功能。可在地图上进行距离、面积、角度测量

			pPixelBoundsEnv.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);

			pExport.PixelBounds = pPixelBoundsEnv;

			int hDC = pExport.StartExporting();
			
			pActiveView.Output(hDC,(int)pExport.Resolution, ref exportRECT, null, null);

			pExport.FinishExporting();
			pExport.Cleanup();
		}

		private void m_View_Pan_Click(object sender, System.EventArgs e)      // 平移
		{
			ICommand pCommand ;

			pCommand = new ControlsMapPanToolClass()  ;
			pCommand.OnCreate(axMap1.Object );
			axMap1.CurrentTool =(ITool) pCommand;

			iMapAction = 4;  
			statusBarPanel1.Text ="漫游";
		}

		private void m_Tool_Length_Click(object sender, System.EventArgs e)
		{
			iMapAction = 5;
			statusBarPanel1.Text ="测距离";
			
			ITool obj = new ControlsMapPanToolClass() ;
			axMap1.CurrentTool = obj;
		}

		private void m_Tool_Area_Click(object sender, System.EventArgs e)
		{
			iMapAction = 6;	
			statusBarPanel1.Text ="测面积";

			ITool obj = new ControlsMapPanToolClass() ;
			axMap1.CurrentTool = obj;		
		}

		private void m_Tool_Angle_Click(object sender, System.EventArgs e)
		{
			iMapAction = 7;	
			statusBarPanel1.Text ="测角度";

			ITool obj = new ControlsMapPanToolClass() ;
			axMap1.CurrentTool = obj;	
		}

		public void FlashShape(IGeometry pGeometry)
		{	
			pGeometry.SpatialReference = axMap1.SpatialReference ;
			pGeometry.SnapToSpatialReference();
	
			switch (pGeometry.GeometryType)  
			{
				case esriGeometryType.esriGeometryPoint:
					IMarkerSymbol pMarkerSymbol = new SimpleMarkerSymbolClass();
					axMap1.FlashShape(pGeometry,3,500,pMarkerSymbol);
					break;
				case esriGeometryType.esriGeometryPolyline :
					ILineSymbol pLineSymbol = new SimpleLineSymbolClass();
					axMap1.FlashShape(pGeometry,3,500,pLineSymbol);
					break;
				case esriGeometryType.esriGeometryPolygon :
					IFillSymbol pFillSymbol = new SimpleFillSymbolClass();
					axMap1.FlashShape(pGeometry,3,500,pFillSymbol);
					break;
			}
		}

		private void axMap1_OnSelectionChanged(object sender, System.EventArgs e)
		{
			if (iMapAction != 1 )
				return ;

			ITableSelection pTable;
			ILayer pLayer;
			
			if ( pForm.Visible == false )
			{
				pForm.Close();
				pForm = null;
				pForm = new AttributeList();
				pForm.Owner = this ;
			}
			else
			{  
				pForm.ClearSelection();
			}
 
			for ( int i=0 ; i< axMap1.LayerCount; i++)
			{
				pTable = (ITableSelection) axMap1.get_Layer(i) ;
				pLayer = axMap1.get_Layer(i) ; 
				pForm.AddSelection( pTable.SelectionSet, pLayer.Name );
				pTable.Clear();
			}
			
			pForm.Show() ;
 
		}

		private void axMap1_OnMouseMove(object sender, ESRI.ArcGIS.MapControl.IMapControlEvents2_OnMouseMoveEvent e)
		{
			statusBarPanel2.Text = e.x.ToString();
			statusBarPanel3.Text = e.y.ToString();

			switch (iMapAction)
			{
				case 5:		
					#region //测长度
					if (pTool.IsSurveying )
					{
						pTool.MoveTo(axMap1.ToMapPoint(e.x,e.y ));
						statusBarPanel1.Text ="总长度：" + pTool.totalLength.ToString()
							+"； 当前线段长度：" + pTool.currentLength.ToString();  
					}
					break;
					#endregion
				case 6:		
					#region //测面积
					if (pTool.IsSurveying )
					{
						pTool.MoveTo(axMap1.ToMapPoint(e.x,e.y ));
						statusBarPanel1.Text ="面积：" + pTool.Area.ToString();
					}
					break;
					#endregion
				case 7:		
					#region //测角度
					if (pTool.IsSurveying )
					{
						pTool.MoveTo(axMap1.ToMapPoint(e.x,e.y ));
						statusBarPanel1.Text ="方向角：" + pTool.Direction.ToString()
							+ "， 夹角：" + pTool.Angle.ToString() ;
					}
					break;
					#endregion
				case 8:
					pEditor.NewFeatureMouseMove(e.x,e.y );
					break;				
				case 10: //移动
					pEditor.MoveFeatureMouseMove(e.x ,e.y ); 
					break;				
				case 12:
					pEditor.EditFeatureMouseMove(e.x,e.y );
					break; 
			}
		}
		
		private void axMap1_OnMouseDown(object sender, ESRI.ArcGIS.MapControl.IMapControlEvents2_OnMouseDownEvent e)
		{
			object obj ;

			switch (iMapAction)
			{
				case 5: 
					#region //测长度
					if (e.button == 1)
					{
						if ( !pTool.IsSurveying )
							pTool.LengthStart(axMap1.ToMapPoint(e.x,e.y ));
						else
							pTool.AddPoint(axMap1.ToMapPoint(e.x,e.y ));
					}
					else
					{
						if ( pTool.IsSurveying )
						{
							obj = new SimpleLineSymbolClass() ;
							axMap1.DrawShape(pTool.SurveyEnd(axMap1.ToMapPoint(e.x,e.y )),ref obj);
							statusBarPanel1.Text ="测距离";
						}
					}
					break;
					#endregion
				case 6: 
					#region //测面积
					if (e.button == 1)
					{
						if ( !pTool.IsSurveying )
							pTool.AreaStart(axMap1.ToMapPoint(e.x,e.y ));
						else
							pTool.AddPoint(axMap1.ToMapPoint(e.x,e.y ));
					}
					else
					{
						if ( pTool.IsSurveying )
						{
							obj = new SimpleFillSymbolClass() ;
							axMap1.DrawShape( pTool.SurveyEnd(axMap1.ToMapPoint(e.x,e.y )),ref obj);
							statusBarPanel1.Text ="测面积";
						}
					}
					break;
					#endregion
				case 7: 
					#region //测角度
					if (e.button == 1)
					{
						if ( !pTool.IsSurveying )
							pTool.AngleStart(axMap1.ToMapPoint(e.x,e.y ));
						else
							pTool.AddPoint(axMap1.ToMapPoint(e.x,e.y ));
					}
					else
					{
						if ( pTool.IsSurveying )
						{
							obj = new SimpleLineSymbolClass(); 
							axMap1.DrawShape(pTool.SurveyEnd(axMap1.ToMapPoint(e.x,e.y )), ref obj);
							statusBarPanel1.Text ="测角度";
						}
					}
					break;
					#endregion
				case 8:
					#region //新建					
					if (e.button ==1)						
						pEditor.NewFeatureMouseDown(e.x ,e.y );					
					else
					{
						pEditor.NewFeatureEnd();					
						axMap1.Refresh();
					} 
					break;
					#endregion
				case 9:  //删除
					pEditor.SelectMouseDown(e.x,e.y );
					break;
				case 10: //移动						
					pEditor.MoveFeatureMouseDown(e.x,e.y ); 
					break;				
				case 12:	
					#region //编辑节点
					pEditor.EditFeatureMouseDown(e.x,e.y );
					break;
					#endregion
			}
		}
		
		private void axMap1_OnMouseUp(object sender, ESRI.ArcGIS.MapControl.IMapControlEvents2_OnMouseUpEvent e)
		{
			switch (iMapAction)
			{				
				case 9:		//删除
					pEditor.DeleteSelectedFeature(); 
					break;
				case 10:	//移动
					pEditor.MoveFeatureEnd(); 
					break;
				case 12:	//编辑节点
					pEditor.EditFeatureEnd(); 
					break;
			}			
		}

		private void m_Tool_Refresh_Click(object sender, System.EventArgs e)
		{
			axMap1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewForeground ,null,null); 
		}

		private void m_Theme_Lable_Click(object sender, System.EventArgs e)
		{
			IGeoFeatureLayer pGeoFeatureLayer =(IGeoFeatureLayer) axMap1.get_Layer(0); 
			pGeoFeatureLayer.AnnotationProperties.Clear(); 

			IAnnotateLayerPropertiesCollection pAnnoLayerPropsColl = pGeoFeatureLayer.AnnotationProperties; 
			ILabelEngineLayerProperties pLabelEngine; 
    
			pLabelEngine = new LabelEngineLayerPropertiesClass() ; 
			pLabelEngine.Expression = "[CITY_NAME]  & vbCrlf & \"(\" & [STATE_NAME] & \")\"" ; 
			

			IAnnotateLayerProperties pAnnoLayerProps = (IAnnotateLayerProperties) pLabelEngine ; 
			pAnnoLayerPropsColl.Add(pAnnoLayerProps); 
			pGeoFeatureLayer.DisplayAnnotation = true; 

			axMap1.ActiveView.Refresh();  
		}

		private void m_Theme_BarChart_Click(object sender, System.EventArgs e)
		{
			IGeoFeatureLayer layer;
			try
			{
				IChartRenderer pChartRenderer =  new ChartRendererClass() as IChartRenderer ; 	
				
				IRendererFields pRendererField = (IRendererFields) pChartRenderer;
				pRendererField.AddField( "AGE_UNDER5","AGE_UNDER5");
				pRendererField.AddField("AGE_5_17","AGE_5_17");
				pRendererField.AddField("AGE_18_64","AGE_18_64");
				pRendererField.AddField("AGE_65_UP","AGE_65_UP");			

				IBarChartSymbol pBarChartSymbol =(IBarChartSymbol) new BarChartSymbolClass();
				pBarChartSymbol.Width = 6;
  
				IChartSymbol pChartSymbol =(IChartSymbol) pBarChartSymbol;
				pChartSymbol.MaxValue = 5000000;
  
				IMarkerSymbol pMarkerSymbol =(IMarkerSymbol) pBarChartSymbol;
				pMarkerSymbol.Size = 25;
    
				ISymbolArray pSymbolArray = (ISymbolArray) pBarChartSymbol;

				IFillSymbol pFillSymbol;

				pFillSymbol =(IFillSymbol) new SimpleFillSymbolClass(); //under 5
				pFillSymbol.Color = GetRGBColor(213, 212, 252);
				pSymbolArray.AddSymbol((ISymbol) pFillSymbol);
  
				pFillSymbol =(IFillSymbol) new SimpleFillSymbolClass(); //5-17
				pFillSymbol.Color = GetRGBColor(193, 252, 179);
				pSymbolArray.AddSymbol((ISymbol) pFillSymbol);

				pFillSymbol =(IFillSymbol) new SimpleFillSymbolClass(); //18-64
				pFillSymbol.Color = GetRGBColor(213, 212, 252);
				pSymbolArray.AddSymbol((ISymbol) pFillSymbol);
  
				pFillSymbol =(IFillSymbol) new SimpleFillSymbolClass(); //65-up
				pFillSymbol.Color = GetRGBColor(193, 252, 179);
				pSymbolArray.AddSymbol((ISymbol) pFillSymbol);
  
				pFillSymbol =(IFillSymbol) new SimpleFillSymbolClass();
				pFillSymbol.Color = GetRGBColor(239, 228, 190);
  
				pChartRenderer.ChartSymbol =(IChartSymbol) pBarChartSymbol;
				pChartRenderer.BaseSymbol =(ISymbol) pFillSymbol;
				pChartRenderer.Label = "Population";
				pChartRenderer.UseOverposter = false;

				layer=(IGeoFeatureLayer) axMap1.get_Layer(2); 
				layer.Renderer =(IFeatureRenderer) pChartRenderer;

				axMap1.ActiveView.Refresh(); 
				axTOC1.SetBuddyControl(axMap1.Object ) ;
				axTOC1.Refresh(); 
			}
			catch (Exception err)
			{
				Console.WriteLine(err.Message ); 
			}			
		}
		
		private void m_Theme_BreakClass_Click(object sender, System.EventArgs e)
		{
//			ITable pTable ;
//			IClassify pClassify ;
//			ITableHistogram pTableHistogram ;
//			IHistogram pHistogram ;
//			object dataFrequency;
//			object dataValues ;
//
//			pTable = (ITable) axMap1.get_Layer(2);
//			pTableHistogram = new BasicTableHistogramClass()  ;
//			pHistogram =(IHistogram) pTableHistogram;
//  
//			pTableHistogram.Field = "POP1990";
//			pTableHistogram.Table = pTable;
//			pHistogram.GetHistogram( out dataValues, out dataFrequency);
//
//			pClassify = new EqualIntervalClass();
//			pClassify.SetHistogramData(dataValues, dataFrequency);

			double[] Classes ={9920007,19840014, 29760021} ;
			int ClassesCount = 3;
			
//			int numDesiredClasses = 3;
//			pClassify.Classify(ref numDesiredClasses);
//			Classes =(double[]) pClassify.ClassBreaks;
//			ClassesCount = Classes.GetUpperBound(1);

			IClassBreaksRenderer pClassBreaksRenderer = new ClassBreaksRendererClass();
			pClassBreaksRenderer.Field = "POP1990";
			pClassBreaksRenderer.BreakCount = ClassesCount;
			pClassBreaksRenderer.SortClassesAscending = true;
  
			IHsvColor pFromColor = new HsvColorClass() ;
			pFromColor.Hue = 60 ;        // Yellow;
			pFromColor.Saturation = 100;
			pFromColor.Value = 96;