//Create Legend
public void CreateLegend()
{
clsSnippet pSnippet = new clsSnippet();
//Create Legend Group
m_pLegendGroup = new LegendGroup();
m_pLegendGroup.Heading = m_strOriRenderField;
m_pLegendGroup.Editable = true;
m_pLegendGroup.Visible = true;
ILegendClass legendClass = new LegendClass();
legendClass.Label = Math.Round(dblMaxValue, 0).ToString();
IStackedChartSymbol stackedChartSymbol = new StackedChartSymbolClass();
//IBarChartSymbol barChartSymbol = new BarChartSymbolClass();
stackedChartSymbol.Width = 10;
if (bln3Dfeature)
{
I3DChartSymbol p3DChartSymbol = stackedChartSymbol as I3DChartSymbol;
p3DChartSymbol.Display3D = true;
p3DChartSymbol.Thickness = 3;
}
//IMarkerSymbol markerSymbol = stackedChartSymbol as IMarkerSymbol;
//markerSymbol.Size = 50;
IChartSymbol chartSymbol = stackedChartSymbol as IChartSymbol;
chartSymbol.MaxValue = dblMaxValue;
ISymbolArray symbolArray = stackedChartSymbol as ISymbolArray;
//Stacked Symbol
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(255, 0, 0);
fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
chartSymbol.set_Value(0, dblMaxUncern);
//fillSymbol = new SimpleFillSymbolClass();
//fillSymbol.Color = pSnippet.getRGB(255, 0, 0);
//fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
//symbolArray.AddSymbol(fillSymbol as ISymbol);
//chartSymbol.set_Value(1, dblMaxUncern);
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(255, 255, 255);
fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
chartSymbol.set_Value(1, dblMaxEstimate - dblMaxUncern);
legendClass.Symbol = (ISymbol)chartSymbol;
m_pLegendGroup.AddClass(legendClass);
//Bounds
legendClass = new LegendClass();
legendClass.Label = "Upper Bound";
ISimpleFillSymbol pLegendUncerSymbol = new SimpleFillSymbol();
pLegendUncerSymbol.Color = pSnippet.getRGB(0, 0, 255);
pLegendUncerSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
legendClass.Symbol = (ISymbol)pLegendUncerSymbol;
m_pLegendGroup.AddClass(legendClass);
legendClass = new LegendClass();
legendClass.Label = "Lower Bound";
pLegendUncerSymbol = new SimpleFillSymbol();
pLegendUncerSymbol.Color = pSnippet.getRGB(255, 0, 0);
pLegendUncerSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
legendClass.Symbol = (ISymbol)pLegendUncerSymbol;
m_pLegendGroup.AddClass(legendClass);
}
//Draw Symbols by features
public void Draw(IFeatureCursor pFCursor, esriDrawPhase DrawPhase, IDisplay Display, ITrackCancel trackCancel)
{
pFCursor = m_pFeatureClass.Search(m_pQueryFilter, true);
clsSnippet pSnippet = new clsSnippet();
IFeature pFeature = pFCursor.NextFeature();
double dblValue = 0;
double dblUncern = 0;
double dblInterval = 0;
IStackedChartSymbol barChartSymbol;
IChartSymbol chartSymbol;
while (pFeature != null)
{
IFeatureDraw pFeatDraw = (IFeatureDraw)pFeature;
dblValue = Convert.ToDouble(pFeature.get_Value(intValueFldIdx));
dblUncern = Convert.ToDouble(pFeature.get_Value(intUncerFldIdx));
dblInterval = dblError * dblUncern;
barChartSymbol = new StackedChartSymbolClass();
barChartSymbol.Width = 10;
if (bln3Dfeature)
{
I3DChartSymbol p3DChartSymbol = barChartSymbol as I3DChartSymbol;
p3DChartSymbol.Display3D = true;
p3DChartSymbol.Thickness = 3;
}
//IMarkerSymbol markerSymbol = barChartSymbol as IMarkerSymbol;
//markerSymbol.Size = 50;
chartSymbol = barChartSymbol as IChartSymbol;
chartSymbol.MaxValue = dblMaxValue;
ISymbolArray symbolArray = barChartSymbol as ISymbolArray;
//Upper Error Symbol
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(0, 0, 255);
fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
chartSymbol.set_Value(0, dblInterval);
//Lower Error
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(255, 0, 0);
fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
chartSymbol.set_Value(1, dblInterval);
//Value -Error to represent mean value
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(255, 255, 255);
fillSymbol.Outline.Color = pSnippet.getRGB(0, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
chartSymbol.set_Value(2, dblValue - dblInterval);
Display = m_pDisplay;
Display.SetSymbol((ISymbol)chartSymbol);
DrawPhase = esriDrawPhase.esriDPGeography;
pFeatDraw.Draw(DrawPhase, Display, (ISymbol)chartSymbol, true,
null, esriDrawStyle.esriDSNormal);
pFeature = pFCursor.NextFeature();
}
}
//StackedChartSymbol
//堆积图
private void button6_Click(object sender, EventArgs e)
{
IGeoFeatureLayer geoFeatureLayer;
IFeatureLayer featureLayer;
ITable table;
ICursor cursor;
IRowBuffer rowBuffer;
//设置渲染要素
string field1 = "sqmi";
string field2 = "sqkm";
//获取渲染图层
geoFeatureLayer = getGeoLayer("Continents");
featureLayer = geoFeatureLayer as IFeatureLayer;
table = featureLayer as ITable;
geoFeatureLayer.ScaleSymbols = true;
IChartRenderer chartRenderer = new ChartRendererClass();
IRendererFields rendererFields = chartRenderer as IRendererFields;
rendererFields.AddField(field1, field1);
rendererFields.AddField(field2, field2);
int[] fieldIndexs = new int[2];
fieldIndexs[0] = table.FindField(field1);
fieldIndexs[1] = table.FindField(field2);
//获取要素最大值
double fieldValue = 0.0, maxValue = 0.0;
cursor = table.Search(null, true);
rowBuffer = cursor.NextRow();
while (rowBuffer != null)
{
for (int i = 0; i < 2; i++)
{
fieldValue = double.Parse(rowBuffer.get_Value(fieldIndexs[i]).ToString());
if (fieldValue > maxValue)
{
maxValue = fieldValue;
}
}
rowBuffer = cursor.NextRow();
}
//创建累积排列符号
IStackedChartSymbol stackedChartSymbol = new StackedChartSymbolClass();
stackedChartSymbol.Width = 10;
IMarkerSymbol markerSymbol = stackedChartSymbol as IMarkerSymbol;
markerSymbol.Size = 50;
IChartSymbol chartSymbol = stackedChartSymbol as IChartSymbol;
chartSymbol.MaxValue = maxValue;
//添加渲染符号
ISymbolArray symbolArray = stackedChartSymbol as ISymbolArray;
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(255, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(0, 255, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
//设置柱状图符号
chartRenderer.ChartSymbol = stackedChartSymbol as IChartSymbol;
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(0, 0, 255);
chartRenderer.BaseSymbol = fillSymbol as ISymbol;
chartRenderer.UseOverposter = false;
//创建图例
chartRenderer.CreateLegend();
geoFeatureLayer.Renderer = chartRenderer as IFeatureRenderer;
this.axMapControl1.Refresh();
}
private void btnStackedChartRender_Click(object sender, EventArgs e)
{
IGeoFeatureLayer pGeoFeatLyr = (IGeoFeatureLayer)this.mainMapControl.get_Layer(0);
double p1, p2, max;//比较制作专题图所用两个字段的最大值的最大
ICursor pCursor = (ICursor)pGeoFeatLyr.Search(null, true);
IDataStatistics pDataStatistics = new DataStatisticsClass();
pDataStatistics.Cursor = pCursor;
pDataStatistics.Field = "GDP_1999（";
p1 = pDataStatistics.Statistics.Maximum;
pCursor = (ICursor)pGeoFeatLyr.Search(null, true);//重新设置Cursor,为什么一定要这样?
//pDataStatistics.Cursor = null;
pDataStatistics.Cursor = pCursor;
pDataStatistics.Field = "GDP_1994（";
p2 = pDataStatistics.Statistics.Maximum;
//MessageBox.Show(p1.ToString() + "\n" + p2.ToString());
max = p1 > p2 ? p1 : p2;
//以下创造3个SimpleFillSymbol,供下面使用
ISimpleFillSymbol pSimpleFillSymbol = new SimpleFillSymbolClass();
pSimpleFillSymbol.Color = getRGBColor(255, 0, 0);
pSimpleFillSymbol.Outline = null;
ISimpleFillSymbol pSimpleFillSymbol2 = new SimpleFillSymbolClass();
pSimpleFillSymbol2.Color = getRGBColor(0, 0, 255);
pSimpleFillSymbol2.Outline = null;
ISimpleFillSymbol pSimpleFillSymbol3 = new SimpleFillSymbolClass();
pSimpleFillSymbol3.Color = getRGBColor(0, 255, 0);
//以下代码设置StackedChart符号,和StackedChart符号的各符号
IStackedChartSymbol pStackedChartSymbol = new StackedChartSymbolClass();//Stached符号
pStackedChartSymbol.Width = 6;//宽度
pStackedChartSymbol.Fixed = false;//不固定长度
IChartSymbol pChartSymbol = pStackedChartSymbol as IChartSymbol;
pChartSymbol.MaxValue = max;//必须
IMarkerSymbol pMarkerSymbol = pStackedChartSymbol as IMarkerSymbol;
pMarkerSymbol.Size = 60;//符号大小
ISymbolArray pSymbolArray = pStackedChartSymbol as ISymbolArray;//SymbolArray
pSymbolArray.AddSymbol((ISymbol)pSimpleFillSymbol);//添加符号
pSymbolArray.AddSymbol((ISymbol)pSimpleFillSymbol2);//添加符号
//以下代码设置着色对象
IChartRenderer pChartRenderer = new ChartRendererClass();
IRendererFields pRendererFields = pChartRenderer as IRendererFields;
pRendererFields.AddField("GDP_1999（", "GDP_1999（");
pRendererFields.AddField("GDP_1994（", "GDP_1994（");
pChartRenderer.ChartSymbol = (IChartSymbol)pStackedChartSymbol;//设置符号
pChartRenderer.Label = "GDP";
pChartRenderer.BaseSymbol = pSimpleFillSymbol3 as ISymbol;//背景
pChartRenderer.UseOverposter = true;//防止重叠
pChartRenderer.CreateLegend();//创造图例,关键!!!!!!!!!
pGeoFeatLyr.Renderer = (IFeatureRenderer)pChartRenderer;
this.mainMapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
this.axTOCControl.Update();
}
//StackedChartSymbol
private void button6_Click(object sender, EventArgs e)
{
IGeoFeatureLayer geoFeatureLayer;
IFeatureLayer featureLayer;
ITable table;
ICursor cursor;
IRowBuffer rowBuffer;
//设置渲染要素
string field1 = "sqmi";
string field2 = "sqkm";
//获取渲染图层
geoFeatureLayer = getGeoLayer("Continents");
featureLayer = geoFeatureLayer as IFeatureLayer;
table = featureLayer as ITable;
geoFeatureLayer.ScaleSymbols = true;
IChartRenderer chartRenderer = new ChartRendererClass();
IRendererFields rendererFields = chartRenderer as IRendererFields;
rendererFields.AddField(field1, field1);
rendererFields.AddField(field2, field2);
int[] fieldIndexs = new int[2];
fieldIndexs[0] = table.FindField(field1);
fieldIndexs[1] = table.FindField(field2);
//获取要素最大值
double fieldValue = 0.0, maxValue = 0.0;
cursor = table.Search(null, true);
rowBuffer = cursor.NextRow();
while (rowBuffer != null)
{
for (int i = 0; i < 2; i++)
{
fieldValue = double.Parse(rowBuffer.get_Value(fieldIndexs[i]).ToString());
if (fieldValue > maxValue)
{
maxValue = fieldValue;
}
}
rowBuffer = cursor.NextRow();
}
//创建累积排列符号
IStackedChartSymbol stackedChartSymbol = new StackedChartSymbolClass();
stackedChartSymbol.Width = 10;
IMarkerSymbol markerSymbol = stackedChartSymbol as IMarkerSymbol;
markerSymbol.Size = 50;
IChartSymbol chartSymbol = stackedChartSymbol as IChartSymbol;
chartSymbol.MaxValue = maxValue;
//添加渲染符号
ISymbolArray symbolArray = stackedChartSymbol as ISymbolArray;
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(255, 0, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(0, 255, 0);
symbolArray.AddSymbol(fillSymbol as ISymbol);
//设置柱状图符号
chartRenderer.ChartSymbol = stackedChartSymbol as IChartSymbol;
fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = getRGB(0, 0, 255);
chartRenderer.BaseSymbol = fillSymbol as ISymbol;
chartRenderer.UseOverposter = false;
//创建图例
chartRenderer.CreateLegend();
geoFeatureLayer.Renderer = chartRenderer as IFeatureRenderer;
this.axMapControl1.Refresh();
}
private void method_4()
{
if (this.igeoFeatureLayer_0 == null)
{
this.ichartRenderer_0 = null;
}
else
{
IChartRenderer pInObject = this.igeoFeatureLayer_0.Renderer as IChartRenderer;
if (pInObject == null)
{
if (this.ichartRenderer_0 == null)
{
this.ichartRenderer_0 = new ChartRendererClass();
if (this.int_0 == 0)
{
this.ichartRenderer_0.ChartSymbol = new PieChartSymbolClass();
}
else if (this.int_0 == 1)
{
this.ichartRenderer_0.ChartSymbol = new BarChartSymbolClass();
}
else
{
this.ichartRenderer_0.ChartSymbol = new StackedChartSymbolClass();
}
(this.ichartRenderer_0.ChartSymbol as IMarkerSymbol).Size = 32.0;
}
}
else
{
IObjectCopy copy = new ObjectCopyClass();
this.ichartRenderer_0 = copy.Copy(pInObject) as IChartRenderer;
IChartSymbol chartSymbol = this.ichartRenderer_0.ChartSymbol;
IChartSymbol symbol2 = null;
if (this.int_0 == 0)
{
if (!(chartSymbol is IPieChartSymbol))
{
symbol2 = new PieChartSymbolClass();
}
}
else if (this.int_0 == 1)
{
if (!(chartSymbol is IBarChartSymbol))
{
symbol2 = new BarChartSymbolClass();
}
}
else if ((this.int_0 == 2) && !(chartSymbol is IStackedChartSymbol))
{
symbol2 = new StackedChartSymbolClass();
}
if (symbol2 != null)
{
ISymbolArray array = chartSymbol as ISymbolArray;
for (int i = 0; i < array.SymbolCount; i++)
{
(symbol2 as ISymbolArray).AddSymbol(array.get_Symbol(i));
}
this.ichartRenderer_0.ChartSymbol = symbol2;
}
}
}
}
