// //更改栅格唯一值渲染符号 // private void RenderRasterUniqueValue(ILayer layerOrElement, IRasterUniqueValueRenderer rasterUniqueValueRenderer, ISymbol symbol, int iHeading, int iClass) { esriSymbologyStyleClass styleClass; if (symbol is IFillSymbol) { styleClass = esriSymbologyStyleClass.esriStyleClassFillSymbols; } else if (symbol is IMarkerSymbol) { styleClass = esriSymbologyStyleClass.esriStyleClassMarkerSymbols; } else { if (!(symbol is ILineSymbol)) { return; } styleClass = esriSymbologyStyleClass.esriStyleClassLineSymbols; } IStyleGalleryItem item = new frmSymbolSelector { Owner = EnviVars.instance.MainForm }.GetItem(styleClass, symbol); if (item != null) { rasterUniqueValueRenderer.set_Symbol(iHeading, iClass, item.Item as ISymbol); this._mapControl.ActiveView.ContentsChanged(); this._mapControl.Refresh(esriViewDrawPhase.esriViewGeography, layerOrElement, null); } }
/// <summary> /// 获取当前栅格图层中城市用地类型栅格的数量。区分栅格图层是否有属性表两种情况。 /// </summary> /// <param name="rasterLayer"></param> /// <param name="landUseClassificationInfo"></param> /// <returns></returns> public static int GetUrbanCount(IRasterLayer rasterLayer, LandUseClassificationInfo landUseClassificationInfo) { int urbanConuts = 0; IRasterBandCollection rbc = rasterLayer.Raster as IRasterBandCollection; IRasterBand rb = rbc.Item(0); //ITable table = rbc.Item(0).AttributeTable; //AttributeTable - OID, Value, Count ITable attributeTable = rb.AttributeTable; if (attributeTable != null) { int count = attributeTable.RowCount(null); int[] values = new int[count]; int[] counts = new int[count]; ICursor cursor = attributeTable.Search(null, false); IRow row = cursor.NextRow(); int index = 0; //数据不一定有OBJECTID字段。同时列名称及顺序不一定符合条件Value,Count。 while (row != null) { values[index] = Convert.ToInt32(row.get_Value(GetColumnIndex(attributeTable, "VALUE"))); counts[index] = Convert.ToInt32(row.get_Value(GetColumnIndex(attributeTable, "COUNT"))); row = cursor.NextRow(); index++; } for (int j = 0; j < count; j++) { for (int i = 0; i < landUseClassificationInfo.UrbanValues.Count; i++) { if (Convert.ToSingle(values[j]) == landUseClassificationInfo.UrbanValues[i].LanduseTypeValue) { urbanConuts += Convert.ToInt32(counts[j]); } } } } else { rb.ComputeStatsAndHist(); IRasterHistogram rh = rb.Histogram; object rhCount = rh.Counts; double[] counts = (double[])rhCount; IRasterUniqueValueRenderer rasterUniqueValueRenderer = (IRasterUniqueValueRenderer)rasterLayer.Renderer; IRasterRendererUniqueValues rasterRendererUniqueValues = (IRasterRendererUniqueValues)rasterUniqueValueRenderer; IUniqueValues uniqueValues = rasterRendererUniqueValues.UniqueValues; for (int j = 0; j < uniqueValues.Count; j++) { for (int i = 0; i < landUseClassificationInfo.UrbanValues.Count; i++) { if (Convert.ToSingle(uniqueValues.get_UniqueValue(j)) == landUseClassificationInfo.UrbanValues[i].LanduseTypeValue) { urbanConuts += Convert.ToInt32(counts[j + 1]); } } } } return(urbanConuts); }
/// <summary> /// 设置唯一值渲染属性 /// </summary> /// <param name="uniqueValueRenderer">唯一值渲染</param> /// <param name="uniqueFiled">渲染字段</param> /// <param name="uniqueCount">唯一值个数</param> private static void SetUniqueRendererProperty(IRasterUniqueValueRenderer uniqueValueRenderer, string uniqueFiled, int uniqueCount) { //设置渲染字段 uniqueValueRenderer.Field = uniqueFiled; uniqueValueRenderer.HeadingCount = 1; uniqueValueRenderer.set_Heading(0, uniqueFiled); //设置标题 uniqueValueRenderer.set_ClassCount(0, uniqueCount); }
/// <summary> /// 设置栅格渲染的唯一值 /// </summary> /// <param name="uniqueValueRenderer">唯一值渲染</param> private void SetRasterUniqueValue(IRasterUniqueValueRenderer uniqueValueRenderer) { //必须计算获取唯一值,添加到图层,不然只能渲染0值 IUniqueValues uniqueValues = GetFloatValueAndCount(rasterLayer); IRasterRendererUniqueValues renderUniqueValues = uniqueValueRenderer as IRasterRendererUniqueValues; if (renderUniqueValues != null) { renderUniqueValues.UniqueValues = uniqueValues; } }
private void tocControl_OnDoubleClick(int button, int shift, int x, int y) { esriTOCControlItem esriTOCControlItem = esriTOCControlItem.esriTOCControlItemNone; object obj = null; object obj2 = null; IBasicMap basicMap = null; ILayer layer = null; this._tocControl.HitTest(x, y, ref esriTOCControlItem, ref basicMap, ref layer, ref obj, ref obj2); if (button == 1) { if (esriTOCControlItem == esriTOCControlItem.esriTOCControlItemLegendClass) { if (layer is IRasterLayer) { IRasterLayer rasterLayer = layer as IRasterLayer; if (rasterLayer.Renderer is IRasterRGBRenderer) { this._mapControl.CustomProperty = layer; this.AddPopMenuRGBItem(obj2, rasterLayer); } else if (rasterLayer.Renderer is IRasterUniqueValueRenderer) { IRasterUniqueValueRenderer rasterUniqueValueRenderer = rasterLayer.Renderer as IRasterUniqueValueRenderer; ISymbol symbol = rasterUniqueValueRenderer.get_Symbol(0, (int)obj2); this.RenderRasterUniqueValue(layer, rasterUniqueValueRenderer, symbol, 0, (int)obj2); } else if (rasterLayer.Renderer is IRasterStretchColorRampRenderer) { frmLayerRender frmLayerRender = new frmLayerRender(layer); if (frmLayerRender.ShowDialog() != System.Windows.Forms.DialogResult.Cancel) { EnviVars.instance.TOCControl.Update(); RefreshView(layer); } } } else { ESRI.ArcGIS.Carto.ILegendClass pLC = new LegendClassClass(); ESRI.ArcGIS.Carto.ILegendGroup pLG = new LegendGroupClass(); if (obj is ILegendGroup) { pLG = (ILegendGroup)obj; } pLC = pLG.get_Class((int)obj2); pLC.Symbol = this.ChangeSymbol(layer, pLC.Symbol); RefreshView(layer); } } } }
/// <summary> /// 添加唯一值和设置标注符号 /// </summary> /// <param name="uniqueValueRenderer">唯一值渲染</param> /// <param name="uniqueValue">唯一值</param> /// <param name="enumColors">颜色带</param> private static void AddValueAndSetLabelSymbol <T>(IRasterUniqueValueRenderer uniqueValueRenderer, List <T> uniqueValue, IEnumColors enumColors) { IFillSymbol fillSymbol = new SimpleFillSymbolClass(); for (int i = 0; i < uniqueValue.Count; i++) { object currentValue = uniqueValue[i]; uniqueValueRenderer.AddValue(0, i, currentValue); fillSymbol.Color = enumColors.Next(); string valueLabel = currentValue.ToString(); if (StringHelper.IsNumeric(valueLabel)) { //获取四位小数的字符串 valueLabel = GetRound(currentValue); } uniqueValueRenderer.set_Label(0, i, valueLabel); uniqueValueRenderer.set_Symbol(0, i, (ISymbol)fillSymbol); } }
/// <summary> /// 获取当前栅格图层中各种用地类型栅格的数量。区分栅格图层是否有属性表两种情况。 /// </summary> /// <param name="rasterLayer"></param> /// <returns></returns> public static int[] GetLandUseTypesCount(IRasterLayer rasterLayer) { int[] landusetypesCounts; IRasterBandCollection rbc = rasterLayer.Raster as IRasterBandCollection; IRasterBand rb = rbc.Item(0); ITable attributeTable = rb.AttributeTable; if (attributeTable != null) { int count = attributeTable.RowCount(null); int[] values = new int[count]; landusetypesCounts = new int[count]; ICursor cursor = attributeTable.Search(null, false); IRow row = cursor.NextRow(); int index = 0; //数据不一定有OBJECTID字段。同时列名称及顺序不一定符合条件Value,Count。 while (row != null) { values[index] = Convert.ToInt32(row.get_Value(GetColumnIndex(attributeTable, "VALUE"))); landusetypesCounts[index] = Convert.ToInt32(row.get_Value(GetColumnIndex(attributeTable, "COUNT"))); row = cursor.NextRow(); index++; } } else { rb.ComputeStatsAndHist(); IRasterHistogram rh = rb.Histogram; object rhCount = rh.Counts; double[] counts = (double[])rhCount; landusetypesCounts = new int[counts.Length]; IRasterUniqueValueRenderer rasterUniqueValueRenderer = (IRasterUniqueValueRenderer)rasterLayer.Renderer; IRasterRendererUniqueValues rasterRendererUniqueValues = (IRasterRendererUniqueValues)rasterUniqueValueRenderer; IUniqueValues uniqueValues = rasterRendererUniqueValues.UniqueValues; for (int j = 0; j < uniqueValues.Count; j++) { landusetypesCounts[j] = Convert.ToInt32(counts[j]); } } return(landusetypesCounts); }
/// <summary> /// 读取并填充土地利用类型信息。 /// </summary> private void FillLanduseInfo(string layerName) { dataGridViewLandUse.Rows.Clear(); //根据第一个图层的符号化设置读取土地利用类型信息。 //注意:因为一般来说符号化设置的设置和属性表一致,因为不需要考虑顺序不一致的问题。 IRasterLayer rasterLayer = ArcGISOperator.GetRasterLayerByName(layerName); IRasterUniqueValueRenderer rasterUniqueValueRenderer = (IRasterUniqueValueRenderer)rasterLayer.Renderer; IRasterRendererUniqueValues rasterRendererUniqueValues = (IRasterRendererUniqueValues)rasterUniqueValueRenderer; IUniqueValues uniqueValues = rasterRendererUniqueValues.UniqueValues; List <object> listUniqueValues = new List <object>(); for (int i = 0; i < uniqueValues.Count; i++) { listUniqueValues.Add(uniqueValues.get_UniqueValue(i)); } int classCount = rasterUniqueValueRenderer.get_ClassCount(0); for (int i = 0; i < classCount; i++) { dataGridViewLandUse.Rows.Add(); dataGridViewLandUse.Rows[i].Cells[0].Value = rasterUniqueValueRenderer.get_Label(0, i); } }
// 唯一值渲染器设置 private void SetRasterRendererInfo(IRasterUniqueValueRenderer renderer, int iclass, object value, string label) { renderer.AddValue(0, iclass, value); renderer.set_Label(0, iclass, label); }
private void AsignarColorAClase(int iClase, string sEtiqueta, int red, int green, int blue, IRasterUniqueValueRenderer pRUVRenderer) { IColorSymbol pColorSymbol = new ColorSymbolClass(); pRUVRenderer.AddValue(0, iClase, iClase); pRUVRenderer.set_Label(0, iClase, sEtiqueta); IRgbColor pColor = new RgbColorClass(); pColor.Red = red; pColor.Green = green; pColor.Blue = blue; pColorSymbol.Color = pColor as IColor; pRUVRenderer.set_Symbol(0, iClase, pColorSymbol as ISymbol); }
private void method_0() { if (this.ilayer_0 == null) { this.iuniqueValueRenderer_0 = null; } else { IObjectCopy copy; IAttributeTable table = this.ilayer_0 as IAttributeTable; if (table == null) { this.int_0 = 50; } else { int num = table.AttributeTable.RowCount(null); if (num > 100) { this.int_0 = 100; } else { this.int_0 = (int)num; } } if (this.ilayer_0 is IGeoFeatureLayer) { IUniqueValueRenderer pInObject = (this.ilayer_0 as IGeoFeatureLayer).Renderer as IUniqueValueRenderer; if (pInObject == null) { if (this.iuniqueValueRenderer_0 == null) { this.iuniqueValueRenderer_0 = new UniqueValueRendererClass(); this.iuniqueValueRenderer_0.FieldCount = 1; this.iuniqueValueRenderer_0.DefaultLabel = "默认符号"; this.iuniqueValueRenderer_0.DefaultSymbol = this.method_6((this.ilayer_0 as IGeoFeatureLayer).FeatureClass.ShapeType); this.iuniqueValueRenderer_0.UseDefaultSymbol = true; } } else { copy = new ObjectCopyClass(); this.iuniqueValueRenderer_0 = copy.Copy(pInObject) as IUniqueValueRenderer; } } else if (this.ilayer_0 is IRasterLayer) { IRasterRenderer renderer = (this.ilayer_0 as IRasterLayer).Renderer; if (renderer is IRasterUniqueValueRenderer) { copy = new ObjectCopyClass(); this.irasterUniqueValueRenderer_0 = copy.Copy(renderer) as IRasterUniqueValueRenderer; } else if (this.irasterUniqueValueRenderer_0 != null) { this.irasterUniqueValueRenderer_0 = new RasterUniqueValueRendererClass(); this.irasterUniqueValueRenderer_0.Field = "Value"; } } } }
/// <summary> /// 当向导页的新一页出现前可以做的该页初始化工作。 /// </summary> /// <param name="sender"></param> /// <param name="e"></param> private void wizardLogistcCA_AfterSwitchPages(object sender, CristiPotlog.Controls.Wizard.AfterSwitchPagesEventArgs e) { //切换至逻辑回归计算页时,应首先读取地图图层信息,填写部分控件 if (e.OldIndex == 1 && e.NewIndex == 2) { //如果不是第一次打开窗体,则再次读取地图数据 application = ArcMap.Application; document = application.Document as IMxDocument; map = document.FocusMap; ArcGISOperator.FoucsMap = document.FocusMap; //如果图层选择框为空 if (comboBoxTrainingStartImage.Items.Count == 0) { for (int i = 0; i < map.LayerCount; i++) { string layerName = map.get_Layer(i).Name; comboBoxTrainingStartImage.Items.Add(layerName); comboBoxTrainingEndImage.Items.Add(layerName); comboBoxSimStartImage.Items.Add(layerName); comboBoxSimEndImage.Items.Add(layerName); } } } //切换到土地利用类型设置页时首先获取图层信息,然后填充土地利用类型 else if (e.OldIndex == 2 && e.NewIndex == 3) { listVariableLayersName.Clear(); trainingStartImageName = comboBoxTrainingStartImage.SelectedItem.ToString(); trainingEndImageName = comboBoxTrainingEndImage.SelectedItem.ToString(); for (int i = 0; i < dataGridViewVariableDatas.Rows.Count; i++) { listVariableLayersName.Add(dataGridViewVariableDatas.Rows[i].Cells[0].Value.ToString()); } //如果已经完成了回归,则不再进行 if (isRegressed) { return; } dataGridViewLandUse.Rows.Clear(); IRasterLayer rasterLayer = ArcGISOperator.GetRasterLayerByName(trainingStartImageName); IRasterUniqueValueRenderer rasterUniqueValueRenderer = (IRasterUniqueValueRenderer)rasterLayer.Renderer; IRasterRendererUniqueValues rasterRendererUniqueValues = (IRasterRendererUniqueValues)rasterUniqueValueRenderer; IUniqueValues uniqueValues = rasterRendererUniqueValues.UniqueValues; List <object> listUniqueValues = new List <object>(); for (int i = 0; i < uniqueValues.Count; i++) { listUniqueValues.Add(uniqueValues.get_UniqueValue(i)); } int classCount = rasterUniqueValueRenderer.get_ClassCount(0); for (int i = 0; i < classCount; i++) { dataGridViewLandUse.Rows.Add(); dataGridViewLandUse.Rows[i].Cells[0].Value = listUniqueValues[i]; dataGridViewLandUse.Rows[i].Cells[1].Value = rasterUniqueValueRenderer.get_Label(0, i); ISymbol symbol = rasterUniqueValueRenderer.get_Symbol(0, i); IFillSymbol fillSymbol = symbol as IFillSymbol; //ISimpleFillSymbol simpleFillSymbol = (ISimpleFillSymbol)symbol; //IColor esriColor = simpleFillSymbol.Color; IColor esriColor = fillSymbol.Color; IRgbColor rgbColor = new RgbColorClass(); rgbColor.CMYK = esriColor.CMYK; Color color = Color.FromArgb(rgbColor.Red, rgbColor.Green, rgbColor.Blue); dataGridViewLandUse.Rows[i].Cells[3].Value = GeneralOpertor.GetBitmap(15, 15, color); } ColumnLUCharacter.Items.Clear(); ColumnLUCharacter.Items.Add(resourceManager.GetString("String6")); ColumnLUCharacter.Items.Add(resourceManager.GetString("String7")); ColumnLUCharacter.Items.Add(resourceManager.GetString("String8")); } //切换到逻辑回归计算页面时进行计算 if (e.OldIndex == 3 && e.NewIndex == 4) { if (isRegressed) { return; } dataGridViewLogisticRegressionCoeff.Rows.Clear(); labelCalculte.Text = resourceManager.GetString("String9"); labelCalculte.Visible = true; progressBarCalculate.Visible = true; Application.DoEvents(); //1.读取起始图像、终止图像、各变量图像为数组 IRasterLayer rasterLayerStartImage = ArcGISOperator.GetRasterLayerByName(comboBoxTrainingStartImage.SelectedItem.ToString()); IRasterLayer rasterLayerEndImage = ArcGISOperator.GetRasterLayerByName(comboBoxTrainingEndImage.SelectedItem.ToString()); RasterSampling rasterSampling = new RasterSampling(); labelCalculte.Text = resourceManager.GetString("String12"); Application.DoEvents(); List <int> notNullRows; List <int> notNullColumns; trainingStartImage = ArcGISOperator.ReadRasterAndGetNotNullRowColumn(rasterLayerStartImage, out structRasterMetaData, out notNullRows, out notNullColumns); //获取最小空间范围 List <IRasterLayer> listVariablesLayers = new List <IRasterLayer>(); for (int i = 0; i < listVariableLayersName.Count; i++) { listVariablesLayers.Add(ArcGISOperator.GetRasterLayerByName(listVariableLayersName[i])); } ArcGISOperator.GetSmallestBound(rasterLayerStartImage, rasterLayerEndImage, listVariablesLayers, ref structRasterMetaData); labelCalculte.Text = resourceManager.GetString("String13"); Application.DoEvents(); trainingEndImage = ArcGISOperator.ReadRaster(rasterLayerEndImage, structRasterMetaData.NoDataValue); float[,] changeImage = GeneralOpertor.GetBinaryImageByTwoImages(trainingStartImage, trainingEndImage, structRasterMetaData.RowCount, structRasterMetaData.ColumnCount, structRasterMetaData.NoDataValue); //GeneralOpertor.WriteDataFloat(GetOutputFolder() + @"\lr_change.txt", changeImage, structRasterMetaData.RowCount, structRasterMetaData.ColumnCount); foreach (string layerName in listVariableLayersName) { labelCalculte.Text = resourceManager.GetString("String14") + layerName + "....."; Application.DoEvents(); varibaleImages.Add(ArcGISOperator.ReadRaster(ArcGISOperator.GetRasterLayerByName(layerName), structRasterMetaData.NoDataValue)); } //2.按设置的比例进行随机抽样,得到抽样结果,然后计算 //1.进行抽样 labelCalculte.Text = resourceManager.GetString("String11"); Application.DoEvents(); int samplingCellsCount = (int)(structRasterMetaData.RowCount * structRasterMetaData.ColumnCount * numericUpDownSamplingPrecent.Value / 100); float[,] datas = new float[samplingCellsCount, listVariableLayersName.Count + 1]; //抽取真值的比例默认设置为一半 datas = rasterSampling.SamplingData(varibaleImages, changeImage, (double)numericUpDownSamplingPrecent.Value, 50, structRasterMetaData, notNullRows, notNullColumns); //2.进行计算 labelCalculte.Text = resourceManager.GetString("String9"); Application.DoEvents(); //输出抽样结果数据 //GeneralOpertor.WriteDataFloat(GetOutputFolder() + @"\lrSamplingData.txt", datas, // rasterSampling.SamplingCellsCount, listVariableLayersName.Count + 1); //3.使用Accord.NET进行逻辑回归计算 labelCalculte.Text = resourceManager.GetString("String9"); Application.DoEvents(); LogisticRegression lr = new LogisticRegression(); double[] odds; double[] stde; double[] min; double[] max; lr.LogisticRegresssionAanlysis(datas, rasterSampling.SamplingCellsCount, listVariableLayersName.Count + 1, out coef, out odds, out stde, out min, out max); for (int i = 0; i < listVariableLayersName.Count + 1; i++) { dataGridViewLogisticRegressionCoeff.Rows.Add(); if (i == 0) { dataGridViewLogisticRegressionCoeff.Rows[i].Cells[0].Value = resourceManager.GetString("String15"); } else { dataGridViewLogisticRegressionCoeff.Rows[i].Cells[0].Value = listVariableLayersName[i - 1]; } dataGridViewLogisticRegressionCoeff.Rows[i].Cells[1].Value = coef[i]; dataGridViewLogisticRegressionCoeff.Rows[i].Cells[2].Value = odds[i]; dataGridViewLogisticRegressionCoeff.Rows[i].Cells[3].Value = stde[i]; dataGridViewLogisticRegressionCoeff.Rows[i].Cells[4].Value = max[i]; dataGridViewLogisticRegressionCoeff.Rows[i].Cells[5].Value = min[i]; } labelCalculte.Visible = false; progressBarCalculate.Visible = false; Application.DoEvents(); isRegressed = true; } //切换到模拟参数设置页时给定控件初始值,同时保存模拟数据信息 else if (e.OldIndex == 4 && e.NewIndex == 5) { if (comboBoxSimEndImage.SelectedIndex == -1) { buttonCalConvertCells.Enabled = false; } else { buttonCalConvertCells.Enabled = true; } } //切换到模拟过程参数设置页时给定控件初始值,同时保存模拟参数信息 else if (e.OldIndex == 5 && e.NewIndex == 6) { simulationStartImageName = comboBoxSimStartImage.SelectedItem.ToString(); if (comboBoxSimEndImage.SelectedIndex != -1) { simulationEndImageName = comboBoxSimEndImage.SelectedItem.ToString(); } convertCount = Convert.ToInt32(numericUpDownConvertCount.Value); simulationIterations = Convert.ToInt32(numericUpDownIterations.Value); delta = Convert.ToInt32(numericUpDownDelta.Value); numericUpDownRefresh.Value = 10; numericUpDownOutputImage.Value = 10; outputFolder = GetOutputFolder(); textBoxOutputFolder.Text = outputFolder; } //切换到完成页时填充摘要,同时保存模拟过程输出参数的信息 else if (e.OldIndex == 6 && e.NewIndex == 7) { refreshInterval = Convert.ToInt32(numericUpDownRefresh.Value); outputImageInterval = Convert.ToInt32(numericUpDownOutputImage.Value); if (radioButtonOutput.Checked) { isOutput = true; } else { isOutput = false; } outputFolder = textBoxOutputFolder.Text; textBoxSummay.Text = WriteSummay(); } }