C#+AE专题图制作.doc

private void 点密度图ToolStripMenuItem_Click(object sender, EventArgs e) /获取当前图层 ，并把它设置成IGeoFeatureLayer的实例 IMap pMap = axMapControl1.Map; ILayer pLayer = pMap.get_Layer(0) as IFeatureLayer; IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer; /获取图层上的feature IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false); IFeature pFeature = pFeatureCursor.NextFeature(); / / /定义点密度图渲染组件 IDotDensityRenderer DotDensityRenderer = new DotDensityRendererClass(); /定义点密度图渲染组件对象的渲染字段对象 IRendererFields flds = (IRendererFields)DotDensityRenderer; flds.AddField(FID, FID); /flds.AddField(Shape, Shape); /定义点密度图渲染得符号对象 IDotDensityFillSymbol ddSym = new DotDensityFillSymbolClass(); IRgbColor BackColor = new RgbColorClass(); BackColor.Red = 234; BackColor.Blue = 128; BackColor.Green = 220; IRgbColor SymbolColor = new RgbColorClass(); SymbolColor.Red = 234; SymbolColor.Blue = 128; SymbolColor.Green = 220; /点密度图渲染背景颜色 /ddSym.BackgroundColor = BackColor; ddSym.DotSize =8; ddSym.FixedPlacement = true; /ddSym.Color = SymbolColor; ILineSymbol pLineSymbol=new CartographicLineSymbolClass(); ddSym.Outline = pLineSymbol; /定义符号数组 ISymbolArray symArray = (ISymbolArray)ddSym; /添加点密度图渲染的点符号到符号数组中去 ISimpleMarkerSymbol pMarkerSymbol = new SimpleMarkerSymbolClass(); pMarkerSymbol.Style = esriSimpleMarkerStyle.esriSMSCircle; pMarkerSymbol.Size = 2; pMarkerSymbol.Color = SymbolColor; symArray.AddSymbol(pMarkerSymbol as ISymbol ); /设置点密度图渲染的点符号 /DotDensityRenderer.DotDensitySymbol =symArray; DotDensityRenderer.DotDensitySymbol = ddSym; /确定一个点代表多少值 DotDensityRenderer .DotValue=0.2; /点密度渲染采用的颜色模式 DotDensityRenderer.ColorScheme = Custom; /创建点密度图渲染图例 DotDensityRenderer.CreateLegend(); /设置符号大小是否固定 DotDensityRenderer.MaintainSize = true; /将点密度图渲染对象与渲染图层挂钩 pGeoFeatureLayer.Renderer = (IFeatureRenderer)DotDensityRenderer; /刷新地图和TOOCotrol IActiveView pActiveView = axMapControl1.Map as IActiveView; pActiveView.Refresh(); axTOCControl1.Update(); private void 分层设色ToolStripMenuItem_Click(object sender, EventArgs e) /获取当前图层 ，并把它设置成IGeoFeatureLayer的实例 IMap pMap = axMapControl1.Map; ILayer pLayer = pMap.get_Layer(0) as IFeatureLayer; IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer; /获取图层上的feature IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false); IFeature pFeature = pFeatureCursor.NextFeature(); / IFeatureRenderer PR=pGeoFeatureLayer.Renderer; /JoinData(县级区域, DZGB, sectioncode); /join外部表 / int DC ; int desiredClasses = 5; string fieldName = AREA; int classesCount; double classes; string strOutput = ; bool ok; object dataFrequency; object dataValues; ITable pTable ; /IClassify pClassify; EqualIntervalClass pClassify; /IBasicHistogram pTableHistogram = new BasicTableHistogramClass(); /IHistogram pTableHistogram = new BasicTableHistogramClass(); ITableHistogram pTableHistogram = new BasicTableHistogramClass() as ITableHistogram; IBasicHistogram pHistogram; IClassBreaksRenderer pClassBreaksRenderer; IHsvColor pFromColor; IHsvColor pToColor; IAlgorithmicColorRamp pAlgorithmicColorRamp; IEnumColors pEnumColors; IColor pColor; ISimpleFillSymbol pSimpleFillSymbol; pLayer = (IFeatureLayer)axMapControl1.get_Layer(0); pGeoFeatureLayer = (IGeoFeatureLayer)pLayer; pTable = (ITable)pGeoFeatureLayer; pHistogram = (IBasicHistogram)pTableHistogram; / Get values and frequencies for the field pTableHistogram.Field = fieldName; pTableHistogram.Table = pTable; pHistogram.GetHistogram(out dataValues, out dataFrequency); / Put values and frequencies into an Equal Interval Classify Object pClassify = new EqualIntervalClass(); /pClassify = new NaturalBreaksClass(); pClassify.SetHistogramData(dataValues, dataFrequency); pClassify.Classify(dataValues, dataFrequency, ref desiredClasses); /pClassify.Classify(ref desiredClasses); classes = (double)pClassify.ClassBreaks; classesCount = classes.Length; / Initialise a new Class Breaks renderer / Supply the number of Class Breaks and the field to perform the class breaks on pClassBreaksRenderer = new ClassBreaksRendererClass(); pClassBreaksRenderer.Field = fieldName; pClassBreaksRenderer.BreakCount = classesCount; pClassBreaksRenderer.SortClassesAscending = true; / Use algorithmic color ramp to generate an range of colors between YELLOW to RED / Initial color: YELLOW pFromColor = new HsvColorClass(); pFromColor.Hue = 60; pFromColor.Saturation = 100; pFromColor.Value = 96; / Final color: RED pToColor = new HsvColorClass(); pToColor.Hue = 0; pToColor.Saturation = 100; pToColor.Value = 96; / Set up HSV Color ramp to span from YELLOW to RED pAlgorithmicColorRamp = new AlgorithmicColorRampClass(); pAlgorithmicColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm; pAlgorithmicColorRamp.FromColor = pFromColor; pAlgorithmicColorRamp.ToColor = pToColor; pAlgorithmicColorRamp.Size = classesCount; pAlgorithmicColorRamp.CreateRamp(out ok); pEnumColors = pAlgorithmicColorRamp.Colors; for (int index = 0; index classesCount - 1; index+) pColor = pEnumColors.Next(); pSimpleFillSymbol = new SimpleFillSymbolClass(); pSimpleFillSymbol.Color = pColor; pSimpleFillSymbol.Style = esriSimpleFillStyle.esriSFSSolid; pClassBreaksRenderer.set_Symbol(index, (ISymbol)pSimpleFillSymbol); pClassBreaksRenderer.set_Break(index, classesindex + 1); / Store each break value for user output strOutput += - + classesindex + 1 + n; pGeoFeatureLayer.Renderer = (IFeatureRenderer)pClassBreaksRenderer; /this.axMapControl1.Refresh(); / / /get the custom property from which is supposed to be the layer to be saved object customProperty = null; /IMapControl3 mapControl = null; customProperty = axMapControl1.CustomProperty; /ask the user to set a name for the new layer file SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Filter = Layer File|*.lyr|All Files|*.*; saveFileDialog.Title = 生成专题图; saveFileDialog.RestoreDirectory = true; saveFileDialog.FileName = System.IO.Path.Combine(saveFileDialog.InitialDirectory, pGeoFeatureLayer.Name + .lyr); /get the layer name from the user DialogResult dr = saveFileDialog.ShowDialog(); if (saveFileDialog.FileName != & dr = DialogResult.OK) if (System.IO.File.Exists(saveFileDialog.FileName) /try to delete the existing file System.IO.File.Delete(saveFileDialog.FileName); /create a new LayerFile instance ILayerFile layerFile = new LayerFileClass(); /create a new layer file layerFile.New(saveFileDialog.FileName); /attach the layer file with the actual layer layerFile.ReplaceContents(ILayer)pGeoFeatureLayer); /save the layer file layerFile.Save(); /ask the user whether hed like to add the layer to the map if (DialogResult.Yes = MessageBox.Show(Would you like to add the layer to the map?, Message, MessageBoxButtons.YesNo, MessageBoxIcon.Question) axMapControl1.AddLayerFromFile(saveFileDialog.FileName, 0); private void 单值图ToolStripMenuItem1_Click(object sender, EventArgs e) /获取当前图层 ，并把它设置成IGeoFeatureLayer的实例 IMap pMap = axMapControl1.Map; ILayer pLayer = pMap.get_Layer(0) as IFeatureLayer; IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer; /获取图层上的feature IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false); /定义单值图渲染组件 IUniqueValueRenderer pUniqueValueRenderer = new UniqueValueRendererClass(); /设置渲染字段对象 pUniqueValueRenderer.FieldCount = 1; pUniqueValueRenderer.set_Field(0, ID); /创建填充符号 ISimpleFillSymbol PFillSymbol = new SimpleFillSymbolClass(); pUniqueValueRenderer.DefaultSymbol = (ISymbol)PFillSymbol; pUniqueValueRenderer.UseDefaultSymbol = false; /QI the table from the geoFeatureLayer and get the field number of ITable pTable; int fieldNumber; pTable = pGeoFeatureLayer as ITable ; fieldNumber = pTable.FindField(ID); if (fieldNumber = -1) MessageBox.Show(Cant find field called , Message, MessageBoxButtons.OK, MessageBoxIcon.Information); /创建并设置随机色谱 IRandomColorRamp pColorRamp = new RandomColorRampClass(); pColorRamp.StartHue = 0; pColorRamp.MinValue = 99; pColorRamp.MinSaturation = 15; pColorRamp.EndHue = 360; pColorRamp.MaxValue = 100; pColorRamp.MaxSaturation = 30; pColorRamp.Size = 100; /pColorRamp.Size = pUniqueValueRenderer.ValueCount; bool ok = true; pColorRamp.CreateRamp(out ok); IEnumColors pEnumRamp; pEnumRamp = pColorRamp.Colors; /为每个值设置一个符号 int n = pFeatureClass.FeatureCount(null); for (int i = 0; i n; i+) IFeature pFeature = pFeatureCursor.NextFeature(); IClone pSourceClone = PFillSymbol as IClone; ISimpleFillSymbol pSimpleFillSymbol = pSourceClone.Clone() as ISimpleFillSymbol ; string pFeatureValue = pFeature.get_Value(pFeature.Fields.FindField(ID).ToString(); pUniqueValueRenderer.AddValue(pFeatureValue, 烈度, (ISymbol)pSimpleFillSymbol); /为每个符号设置颜色 for (int i = 0; i = pUniqueValueRenderer.ValueCount - 1; i+) string xv = pUniqueValueRenderer.get_Value(i); if (xv != ) ISimpleFillSymbol pNextSymbol = (ISimpleFillSymbol)pUniqueValueRenderer.get_Symbol(xv); pNextSymbol.Color = pEnumRamp.Next(); pUniqueValueRenderer.set_Symbol(xv, (ISymbol)pNextSymbol); /将单值图渲染对象与渲染图层挂钩 pGeoFeatureLayer.Renderer = (IFeatureRenderer)pUniqueValueRenderer; pGeoFeatureLayer.DisplayField = ID; /刷新地图和TOOCotrol IActiveView pActiveView = axMapControl1.Map as IActiveView; pActiveView.Refresh(); axTOCControl1.Update(); private void 等级图ToolStripMenuItem_Click(object sender, EventArgs e) /获取当前图层 ，并把它设置成IGeoFeatureLayer的实例 IMap pMap = axMapControl1.Map; ILayer pLayer = pMap.get_Layer(0) as IFeatureLayer; IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer; IGeoFeatureLayer pGeoFeatureLayer = pLayer as IGeoFeatureLayer; /获取图层上的feature IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass; IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false); IFeature pFeature = pFeatureCursor.NextFeature(); / /定义所需的接口对象和相关变量 IClassBreaksUIProperties pUIProperties; object dataValues; object dataFrequency; /double cb; int breakIndex; long ClassesCount; int numClass; numClass = 10; double Classes; / /* Were going to retrieve frequency data from a population field and then classify this data*/ ITable pTable; pTable = pFeatureClass as ITable; IBasicHistogram pBasicHist = new BasicTableHistogramClass(); ITableHistogram pTableHist; pTableHist = (ITableHistogram)pBasicHist; /Get values and frequencies for the population field into a table histogram object pTableHist.Field = AREA; pTableHist.Table = pTable; pBasicHist.GetHistogram(out dataValues, out dataFrequency); IClassifyGEN pClassifyGEN = new QuantileClass(); pClassifyGEN.Classify(dataValues, dataFrequency, ref numClass); Classes = (double)pClassifyGEN.ClassBreaks; ClassesCount = long.Parse(Classes.GetUpperBound(0).ToString(); /Initialise a new class breaks renderer and supply the number of class breaks and the field to perform the class breaks on. IClassBreaksRenderer pClassBreaksRenderer = new ClassBreaksRendererClass(); pClassBreaksRenderer.Field = AREA; /pClassBreaksRenderer.BreakCount = ClassesCount; pClassBreaksRenderer.MinimumBreak = Classes0; pClassBreaksRenderer.SortClassesAscending = true; /设置着色对象的分级数目 pClassBreaksRenderer.BreakCount = int.Parse(ClassesCount.ToString(); /创建并设置随机色谱 IAlgorithmicColorRamp pColorRamp = new AlgorithmicColorRampClass(); pColorRamp.Algorithm = esriColorRampAlgorithm.esriCIELabAlgorithm; IEnumColors pEnumColors; IRgbColor pColor1 = new RgbColorClass(); IRgbColor pColor2 = new RgbColorClass(); pColor1.Red = 255; pColor1.Green = 210; pColor1.Blue = 210; pColor2.Red = 190; pColor2.Green = 0; pColor2.Blue = 170; pColorRamp.FromColor = pColor1; pColorRamp.ToColor = pColor2; pColorRamp.Size = numClass; bool ok = true; pColorRamp.CreateRamp(out ok); pEnumColors = pColorRamp.Colors; pEnumColors.Reset();/ use this interface to set dialog properties pUIProperties = pClassBreaksRenderer as IClassBreaksUIProperties; pUIProperties.ColorRamp = Custom; ISimpleFillSymbol pSimpleMarkerSymbol = new SimpleFillSymbolClass(); IColor pColor; int colors = new intnumClass; / be careful, indices are different for the diff lists for (breakIndex = 0; breakIndex ClassesCount; breakIndex+) pClassBreaksRenderer.set_Label (breakIndex,ClassesbreakIndex + - + ClassesbreakIndex + 1); pUIProperties.set_LowBreak (breakIndex ,ClassesbreakIndex)