public ChartRender(AxMapControl pMapcontrol, IFeatureLayer pFtLayer, string pFieldName)
{
IGeoFeatureLayer pGeoFeaturelayer = pFtLayer as IGeoFeatureLayer;
IChartRenderer pChart = new ChartRendererClass();
IDataStatistics pDataStat = new DataStatisticsClass();
IFeatureCursor pFtCursor = pFtLayer.FeatureClass.Search(null, false);
pDataStat.Cursor = pFtCursor as ICursor;
pDataStat.Field = pFieldName;
double pMax = pDataStat.Statistics.Maximum;
IRendererFields pRenderFields = pChart as IRendererFields;
pRenderFields.AddField(pFieldName, pFieldName);
IBarChartSymbol pBarChart = new BarChartSymbolClass();
pBarChart.Width = 5;
IMarkerSymbol pMarkerSymbol = pBarChart as IMarkerSymbol;
pMarkerSymbol.Size = 12;
IChartSymbol pChartSym = pBarChart as IChartSymbol;
pChartSym.MaxValue = pMax;
ISymbolArray pSymbolArr = pBarChart as ISymbolArray;
IFillSymbol pFillSy = new SimpleFillSymbolClass();
pFillSy.Color = GetRgb(220, 0, 0);
pSymbolArr.AddSymbol(pFillSy as ISymbol);
pGeoFeaturelayer.Renderer = pChart as IFeatureRenderer;
pMapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
/// <summary>
/// BarChartRenderer柱状图渲染：根据一个或多个数字字段的值配置柱状图渲染图层
/// </summary>
/// <param name="geoFeatureLayer"></param>
/// <param name="fieldNameColorDict"></param>
public static void SetBarCharRenderer(this IGeoFeatureLayer geoFeatureLayer, Dictionary <string, IColor> fieldNameColorDict)
{
//创建柱状符号
IBarChartSymbol barChartSymbol = new BarChartSymbolClass {
Width = 12
};
//获取两个字段的最大值，设置柱状图各柱状符号
double maxValue = 0;
ISymbolArray symbolArray = (ISymbolArray)barChartSymbol;
foreach (var pair in fieldNameColorDict)
{
var value = geoFeatureLayer.FeatureClass.Statistics(pair.Key, null, EStatisticsType.Maximum);
if (value > maxValue)
{
maxValue = value;
}
IFillSymbol fillSymbol = new SimpleFillSymbol {
Color = pair.Value
};
symbolArray.AddSymbol((ISymbol)fillSymbol);
}
//设置ChartSymbol的最大值，以及符号尺寸最大值（像素单位）
IChartSymbol chartSymbol = (IChartSymbol)barChartSymbol;
IMarkerSymbol markerSymbol = (IMarkerSymbol)barChartSymbol;
chartSymbol.MaxValue = maxValue;
markerSymbol.Size = 60;
//设置字段，依据字段的数据值，创建柱状图
IChartRenderer chartRenderer = new ChartRendererClass();
IRendererFields rendererFields = (IRendererFields)chartRenderer;
foreach (var pair in fieldNameColorDict)
{
rendererFields.AddField(pair.Key, pair.Key);
}
//设置图层的背景颜色
chartRenderer.ChartSymbol = (IChartSymbol)barChartSymbol;
chartRenderer.BaseSymbol = new SimpleFillSymbolClass {
Color = ColorCreate.GetIColor(239, 228, 190)
};
//设置其他属性
chartRenderer.UseOverposter = false;
chartRenderer.CreateLegend();//创建符号图例
chartRenderer.Label = "";
geoFeatureLayer.Renderer = chartRenderer as IFeatureRenderer;
}
public ChartRender(AxMapControl pMapcontrol, IFeatureLayer pFtLayer, string pFieldName)
{
IGeoFeatureLayer pGeoFeaturelayer = pFtLayer as IGeoFeatureLayer;
IChartRenderer pChart = new ChartRendererClass();
IDataStatistics pDataStat = new DataStatisticsClass();
IFeatureCursor pFtCursor = pFtLayer.FeatureClass.Search(null, false);
pDataStat.Cursor = pFtCursor as ICursor;
pDataStat.Field = pFieldName;
double pMax = pDataStat.Statistics.Maximum;
IRendererFields pRenderFields = pChart as IRendererFields;
pRenderFields.AddField(pFieldName,pFieldName);
IBarChartSymbol pBarChart = new BarChartSymbolClass();
pBarChart.Width = 5;
IMarkerSymbol pMarkerSymbol = pBarChart as IMarkerSymbol;
pMarkerSymbol.Size = 12;
IChartSymbol pChartSym = pBarChart as IChartSymbol;
pChartSym.MaxValue = pMax;
ISymbolArray pSymbolArr = pBarChart as ISymbolArray;
IFillSymbol pFillSy = new SimpleFillSymbolClass();
pFillSy.Color = GetRgb(220, 0, 0);
pSymbolArr.AddSymbol(pFillSy as ISymbol);
pGeoFeaturelayer.Renderer = pChart as IFeatureRenderer;
pMapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
private void ChartRenderer(IFeatureLayer pFeatLyr, Dictionary <string, IRgbColor> dicFieldAndColor)
{
IChartRenderer chartRenderer = new ChartRendererClass();
IDataStatistics dataSta = new DataStatisticsClass();
dataSta.Field = m_pTarField.Name;
dataSta.Cursor = m_pTarFeatureClass.Search(null, false) as ICursor;
double max = Double.MinValue;
foreach (string fieldName in dicFieldAndColor.Keys)
{
(chartRenderer as IRendererFields).AddField(fieldName, fieldName);
max = max > dataSta.Statistics.Maximum ? max : dataSta.Statistics.Maximum;
}
IBarChartSymbol barSyb = null;
barSyb = new BarChartSymbolClass();
(barSyb as IChartSymbol).MaxValue = max;
barSyb.Width = 6;
(barSyb as IMarkerSymbol).Size = 30;
IFillSymbol barSymbol = new SimpleFillSymbolClass();
barSymbol.Color = m_pFillColor;
(barSyb as ISymbolArray).AddSymbol(barSymbol as ISymbol);
IFillSymbol baseSymbol = new SimpleFillSymbolClass();
baseSymbol.Color = m_pOutlineColor;
chartRenderer.ChartSymbol = barSyb as IChartSymbol;
chartRenderer.BaseSymbol = baseSymbol as ISymbol;
m_pTarGeoFeatureLayer.Renderer = chartRenderer as IFeatureRenderer;
chartRenderer.CreateLegend();
frmMainOper(OperationType.RefreshMapCtrl);
frmMainOper(OperationType.UpdateTOCCtrl);
}
public override void OnClick()
{
IGeoFeatureLayer pGeoFeatureL;
IFeatureLayer pFeatureLayer;
ITable pTable;
ICursor pCursor;
IQueryFilter pQueryFilter;
IRowBuffer pRowBuffer;
int numFields = 2;
int[] fieldIndecies = new int[numFields];
int lfieldIndex;
double dmaxValue;
bool firstValue;
double dfieldValue;
IChartRenderer pChartRenderer;
IRendererFields pRendererFields;
IFillSymbol pFillSymbol;
IMarkerSymbol pMarkerSymbol;
ISymbolArray pSymbolArray;
IChartSymbol pChartSymbol;
string strPopField1 = "population";
string strPopField2 = "jingji";
//pActiveView = m_hookHelper.ActiveView;
//pMap = m_hookHelper.FocusMap;
//pMap.ReferenceScale = pMap.MapScale ;
// pFeatureLayer = (IGeoFeatureLayer) pMap.get_Layer(1);//Parameter!!!
pGeoFeatureL = (IGeoFeatureLayer)m_pLayer;
pTable = (ITable)pGeoFeatureL;
pGeoFeatureL.ScaleSymbols = true;
pChartRenderer = new ChartRendererClass();
pRendererFields = (IRendererFields)pChartRenderer;
pRendererFields.AddField(strPopField1, strPopField1);
pRendererFields.AddField(strPopField2, strPopField2);
pQueryFilter = new QueryFilterClass();
pQueryFilter.AddField(strPopField1);
pQueryFilter.AddField(strPopField2);
pCursor = pTable.Search(pQueryFilter, true);
fieldIndecies[0] = pTable.FindField(strPopField1);
fieldIndecies[1] = pTable.FindField(strPopField2);
firstValue = true;
dmaxValue = 0;
pRowBuffer = pCursor.NextRow();
while (pRowBuffer != null)
{
for (lfieldIndex = 0; lfieldIndex <= numFields - 1; lfieldIndex++)
{
dfieldValue = (double)Convert.ToInt32(pRowBuffer.get_Value(fieldIndecies[lfieldIndex]));
if (firstValue)
{
dmaxValue = dfieldValue;
firstValue = false;
}
else
{
if (dfieldValue > dmaxValue)
{
dmaxValue = dfieldValue;
}
//Set up the fields to draw charts of
//Make an array of the field numbers to iterate accross, this is to keep the code generic in the number of bars to draw.
//Iterate across each feature
// iterate through each data field and update the maxVal if needed
// Special case for the first value in a feature class
// we've got a new biggest value
}
}
pRowBuffer = pCursor.NextRow();
}
if (dmaxValue <= 0)
{
MessageBox.Show("Failed to gather stats on the feature class");
Application.Exit();
}
IBarChartSymbol pBarChartSymbol;
pBarChartSymbol = new BarChartSymbolClass();
pChartSymbol = (IChartSymbol)pBarChartSymbol;
pBarChartSymbol.Width = 12;
pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
pChartSymbol.MaxValue = dmaxValue;
pMarkerSymbol.Size = 80;
pSymbolArray = (ISymbolArray)pBarChartSymbol;
pFillSymbol = new SimpleFillSymbolClass();
IRgbColor pRGB = new RgbColorClass();
pRGB.Red = 213;
pRGB.Green = 212;
pRGB.Blue = 252;
pFillSymbol.Color = pRGB;
pSymbolArray.AddSymbol((ISymbol)pFillSymbol);
pFillSymbol = new SimpleFillSymbolClass();
pRGB.Red = 193;
pRGB.Green = 252;
pRGB.Blue = 179;
pFillSymbol.Color = pRGB;
pSymbolArray.AddSymbol((ISymbol)pFillSymbol);
pChartRenderer.ChartSymbol = (IChartSymbol)pBarChartSymbol;
pChartRenderer.Label = "Population";
pFillSymbol = new SimpleFillSymbolClass();
pRGB.Red = 293;
pRGB.Green = 228;
pRGB.Blue = 190;
pFillSymbol.Color = pRGB;
pChartRenderer.BaseSymbol = (ISymbol)pFillSymbol;
// Set up the chart marker symbol to use with the renderer
//Finally we've got the biggest value, set this into the symbol
//This is the maximum height of the bars
//Now set up symbols for each bar
// Add some colours in for each bar
//This is a pastel green
//Now set the barchart symbol into the renderer
//set up the background symbol to use tan color
//Disable overpoaster so that charts appear in the centre of polygons
pChartRenderer.UseOverposter = false;
pChartRenderer.CreateLegend();
pGeoFeatureL.Renderer = (IFeatureRenderer)pChartRenderer;
//pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
public BarRender(AxMapControl pMapcontrol, IFeatureLayer pFtLayer, String pFieldName1, string pFieldName2)
{
//IGeoFeatureLayer pGeoFeatureLayer = pFtLayer as IGeoFeatureLayer;
//IFeatureClass pFeatureClass = pFtLayer.FeatureClass;
////定义柱状图渲染组建对象
//IChartRenderer pChartRenderer = new ChartRendererClass();
////定义渲染字段对象并给字段对象实例化为pChartRenderer
//IRendererFields pRendererFields;
//pRendererFields = (IRendererFields)pChartRenderer;
////向渲染字段对象中添加字段--- 待补充自定义添加
//pRendererFields.AddField(pFieldName1, pFieldName1);
//pRendererFields.AddField(pFieldName2, pFieldName2);
//ITable pTable;
//pTable = pGeoFeatureLayer as ITable;
//int[] pFieldIndecies = new int[2];
//pFieldIndecies[0] = pTable.FindField(pFieldName1);
//pFieldIndecies[1] = pTable.FindField(pFieldName2);
//IDataStatistics pDataStat = new DataStatisticsClass();
//IFeatureCursor pFtCursor = pFtLayer.FeatureClass.Search(null, false);
//pDataStat.Cursor = pFtCursor as ICursor;
//pDataStat.Field = pFieldName2;
//double pMax = pDataStat.Statistics.Maximum;
//// 定义并设置渲染时用的chart marker symbol
//IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
//pBarChartSymbol.Width = 6;
//IChartSymbol pChartSymbol;
//pChartSymbol = pBarChartSymbol as IChartSymbol;
//IMarkerSymbol pMarkerSymbol;
//pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
//IFillSymbol pFillSymbol;
////设置pChartSymbol的最大值
//pChartSymbol.MaxValue = pMax;
//// 设置bars的最大高度
//pMarkerSymbol.Size = 80;
////下面给每一个bar设置符号
////定义符号数组
//ISymbolArray pSymbolArray = (ISymbolArray)pBarChartSymbol;
////添加第一个符号
//pFillSymbol = new SimpleFillSymbolClass();
//pFillSymbol.Color = GetRGBColor(193, 252, 179) as IColor;
//pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
////添加第二个符号
//pFillSymbol = new SimpleFillSymbolClass();
// pFillSymbol.Color = GetRGBColor(145, 55, 251) as IColor;
//pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
//pChartRenderer.ChartSymbol = pChartSymbol as IChartSymbol;
////pChartRenderer.Label = "AREA";
//pChartRenderer.CreateLegend();
//pChartRenderer.UseOverposter = false;
////将柱状图渲染对象与渲染图层挂钩
//pGeoFeatureLayer.Renderer = (IFeatureRenderer)pChartRenderer;
////刷新地图和TOOCotrol
//IActiveView pActiveView = pMapcontrol .ActiveView as IActiveView;
//pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
//获取当前图层 ，并把它设置成IGeoFeatureLayer的实例
IMap pMap = pMapcontrol.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;
//定义柱状图渲染组建对象
IChartRenderer pChartRenderer = new ChartRendererClass();
//定义渲染字段对象并给字段对象实例化为pChartRenderer
IRendererFields pRendererFields;
pRendererFields = (IRendererFields)pChartRenderer;
//向渲染字段对象中添加字段--- 待补充自定义添加
pRendererFields.AddField(pFieldName1, pFieldName1);
pRendererFields.AddField(pFieldName2, pFieldName2);
// 通过查找features的所用字段的值，计算出数据字段的最大值，作为设置柱状图的比例大小的依据
ITable pTable;
int fieldNumber;
pTable = pGeoFeatureLayer as ITable;
// 查找出geoFeatureLayer的属性表中的字段个数
fieldNumber = pTable.FindField(pFieldName1);
if (fieldNumber == -1)
{
MessageBox.Show("Can't find field called ", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
const int numFields = 2;// 设置bars的个数
int[] fieldIndecies = new int[2];
//long fieldIndex;
double maxValue;
bool firstValue;
//double[] fieldValue=new double[5];
double fieldValue;
fieldIndecies[0] = pTable.FindField(pFieldName1);
fieldIndecies[1] = pTable.FindField(pFieldName2);
firstValue = true;
maxValue = 0;
int n = pFeatureClass.FeatureCount(null);
for (int i = 0; i < numFields; i++)
{
IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false);
for (int j = 0; j < n; j++)
{
IFeature pFeature = pFeatureCursor.NextFeature();
fieldValue = Convert.ToDouble(pFeature.get_Value(fieldIndecies[i]));
if (firstValue)
{
//给maxValue赋初值
maxValue = fieldValue;
firstValue = false;
}
else if (fieldValue > maxValue)
{
maxValue = fieldValue;
}
}
}
if (maxValue <= 0)
{
MessageBox.Show("Failed to calculate the maximum value or maxvalue is 0.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
// 定义并设置渲染时用的chart marker symbol
IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
pBarChartSymbol.Width = 6;
IChartSymbol pChartSymbol;
pChartSymbol = pBarChartSymbol as IChartSymbol;
IMarkerSymbol pMarkerSymbol;
pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
IFillSymbol pFillSymbol;
//设置pChartSymbol的最大值
pChartSymbol.MaxValue = maxValue;
// 设置bars的最大高度
pMarkerSymbol.Size = 16;
//下面给每一个bar设置符号
//定义符号数组
ISymbolArray pSymbolArray = (ISymbolArray)pBarChartSymbol;
//克隆pFillSymbol用于符号操作
//IClone pSourceClone = pFillSymbol as IClone;
//ISimpleFillSymbol pSimpleFillSymbol = pSourceClone.Clone() as ISimpleFillSymbol;
// 向符号数组中添加设置后的符号
//pSimpleFillSymbol.Color = GetRGBColor(193, 252, 179);
//pSymbolArray.AddSymbol(pSimpleFillSymbol as ISymbol);
//pSimpleFillSymbol.Color = GetRGBColor(145, 55, 200);
//pSymbolArray.AddSymbol(pSimpleFillSymbol as ISymbol);
//添加第一个符号
pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = GetRGBColor(193, 252, 179) as IColor;
pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
//添加第二个符号
pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = GetRGBColor(145, 55, 251) as IColor;
pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
// 设置背景符号
//pSimpleFillSymbol.Color = GetRGBColor(239, 150, 190);
//pChartRenderer.BaseSymbol = pSimpleFillSymbol as ISymbol;
// Disable overpoaster 让符号处于图形中央
pChartRenderer.UseOverposter = false;
//pChartRenderer.ChartSymbol = pSymbolArray as IChartSymbol;
pChartRenderer.ChartSymbol = pChartSymbol as IChartSymbol;
//pChartRenderer.Label = "AREA";
pChartRenderer.CreateLegend();
//将柱状图渲染对象与渲染图层挂钩
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pChartRenderer;
pGeoFeatureLayer.DisplayField = pFieldName1;
//刷新地图和TOOCotrol
IActiveView pActiveView = pMapcontrol.Map as IActiveView;
pActiveView.Refresh();
}
/// <summary>
/// Bar Chart Render for Enviroment
/// </summary>
/// <param name="currentLayer"></param>
/// <param name="breakCount"></param>
/// <author>Shen Yongyuan</author>
/// <date>20091114</date>
public static void BarChartRenderSingle(ILayer currentLayer)
{
//Scale Symbol
IGeoFeatureLayer pGeoFeatureL = currentLayer as IGeoFeatureLayer;
pGeoFeatureL.ScaleSymbols = true;
//Chart Render
IChartRenderer pChartRenderer = new ChartRendererClass();
IRendererFields pRendererFields = (IRendererFields)pChartRenderer;
pRendererFields.AddField(Town.Constant.Constant.TmpTableIndex + "." + Town.Constant.Constant.TmpFieldName, "指标");
//Search Max
IQueryFilter pQueryFilter = new QueryFilterClass();
pQueryFilter.AddField(Town.Constant.Constant.TmpTableIndex + "." + Town.Constant.Constant.TmpFieldName);
IFeatureCursor pCursor = pGeoFeatureL.DisplayFeatureClass.Search(pQueryFilter, true);
int fldFiledEcology = pCursor.Fields.FindField(Town.Constant.Constant.TmpTableIndex + "." + Town.Constant.Constant.TmpFieldName);
List <double> valueList = new List <double>();
IFeature pFeature = pCursor.NextFeature();
while (pFeature != null)
{
valueList.Add(Convert.ToDouble(pFeature.get_Value(fldFiledEcology)));
pFeature = pCursor.NextFeature();
}
//Bar Chart
IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
IChartSymbol pChartSymbol = (IChartSymbol)pBarChartSymbol;
pBarChartSymbol.Width = 12;
IMarkerSymbol pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
pChartSymbol.MaxValue = valueList.Max();
pMarkerSymbol.Size = 50;
//Set Symbol
ISymbolArray pSymbolArray = (ISymbolArray)pBarChartSymbol;
ISimpleFillSymbol pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = ArcGIS.Color.ToEsriColor(System.Drawing.Color.Green);
pSymbolArray.AddSymbol((ISymbol)pFillSymbol);
//Render Attribute
pChartRenderer.ChartSymbol = (IChartSymbol)pBarChartSymbol;
pChartRenderer.Label = "指标";
pChartRenderer.UseOverposter = false;
pChartRenderer.CreateLegend();
//Back Ground
pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = ArcGIS.Color.ToEsriColor(System.Drawing.Color.FromArgb(239, 228, 190));
pChartRenderer.BaseSymbol = (ISymbol)pFillSymbol;
//Render Label
pGeoFeatureL.Renderer = pChartRenderer as IFeatureRenderer;
}
private void polygonQualityDye(ILayer pLayer)
{
IGeoFeatureLayer pGeoFeatureL;
IFeatureLayer pFeatureLayer;
ITable pTable;
ICursor pCursor;
IQueryFilter pQueryFilter;
IRowBuffer pRowBuffer;
int numFields = 2;
int[] fieldIndecies = new int[numFields];
int iFieldIndex;
double dMaxValue;
bool isFirstValue;
double dFieldValue;
IChartRenderer pChartRenderer;
IRendererFields pRenderFields;
IFillSymbol pFillSymbol;
IMarkerSymbol pMarkerSymbol;
ISymbolArray pSymbolArray;
IChartSymbol pCharSymbol;
//设置需要的字段信息
string strPopField1 = cbField1.Text;
string strPopField2 = cbField2.Text;
IMap pMap = axMapControl1.Map;
pMap.ReferenceScale = pMap.MapScale;
pFeatureLayer = (IGeoFeatureLayer)pLayer;
pGeoFeatureL = (IGeoFeatureLayer)pFeatureLayer;
pTable = (ITable)pGeoFeatureL;
pGeoFeatureL.ScaleSymbols = true;
pChartRenderer = new ChartRendererClass();
//设置柱状图中所需要绘制的属性
pRenderFields = (IRendererFields)pChartRenderer;
pRenderFields.AddField(strPopField1, strPopField1);
pRenderFields.AddField(strPopField2, strPopField2);
pQueryFilter = new QueryFilterClass();
pQueryFilter.AddField(strPopField1);
pQueryFilter.AddField(strPopField2);
pCursor = pTable.Search(pQueryFilter, true);
fieldIndecies[0] = pTable.FindField(strPopField1);
fieldIndecies[1] = pTable.FindField(strPopField2);
isFirstValue = true;
dMaxValue = 0;
//迭代坊问每一个要素
pRowBuffer = pCursor.NextRow();
try
{
while (pRowBuffer != null)
{
for (iFieldIndex = 0; iFieldIndex <= numFields - 1; iFieldIndex++)
{
//迭代访问要素的字段值并对最大值进行更新和标记
dFieldValue = double.Parse(pRowBuffer.get_Value(fieldIndecies[iFieldIndex]).ToString());
if (isFirstValue)
{
//将最大值dmax初始化为第一个值
dMaxValue = dFieldValue;
isFirstValue = false;
}
else
{
if (dFieldValue > dMaxValue)
{
//获取最大值时候进行更新
dMaxValue = dFieldValue;
}
}
}
pRowBuffer = pCursor.NextRow();
}
}
catch (Exception ex)
{
MessageBox.Show("该字段中有不合法的值，请重新选择字段");
}
if (dMaxValue <= 0)
{
MessageBox.Show("获取要素失败");
return;
}
//设置需要渲染的柱状图符号
IBarChartSymbol pBarChartSymbol;
pBarChartSymbol = new BarChartSymbolClass();
pCharSymbol = (IChartSymbol)pBarChartSymbol;
pBarChartSymbol.Width = 12;
pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
//设置柱状图的最大值
pCharSymbol.MaxValue = dMaxValue;
//设置柱状图的最大渲染高度
pMarkerSymbol.Size = 80;
//为每个柱状图设置符号
pSymbolArray = (ISymbolArray)pBarChartSymbol;
//为每个柱状图添加颜色
pFillSymbol = new SimpleFillSymbolClass();
IRgbColor color = new RgbColorClass();
color.Red = 213;
color.Green = 212;
color.Blue = 252;
pFillSymbol.Color = color;
pSymbolArray.AddSymbol((ISymbol)pFillSymbol);
pFillSymbol = new SimpleFillSymbolClass();
color.Red = 193;
color.Green = 252;
color.Blue = 179;
pFillSymbol.Color = color;
pSymbolArray.AddSymbol((ISymbol)pFillSymbol);
//设置渲染符号为柱状图
pChartRenderer.ChartSymbol = (IChartSymbol)pBarChartSymbol;
pChartRenderer.Label = cbField1.Text;
//设置柱状图的背景颜色
pFillSymbol = new SimpleFillSymbolClass();
color.Red = 239;
color.Green = 228;
color.Blue = 190;
pFillSymbol.Color = color;
pChartRenderer.BaseSymbol = (ISymbol)pFillSymbol;
//设置overpoaster属性为false，使柱状图显示在polygon多边形要素的中间
pChartRenderer.UseOverposter = false;
pChartRenderer.CreateLegend();
//更新柱状图和刷新显示
pGeoFeatureL.Renderer = (IFeatureRenderer)pChartRenderer;
axMapControl1.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
}
private void btnApply_Click(object sender, EventArgs e)
{
try
{
string strLayerName = cboSourceLayer.Text;
if (cboSourceLayer.Text == "" || cboValueField.Text == "" || cboUField.Text == "")
{
MessageBox.Show("Assign proper layer and field");
return;
}
int intLIndex = pSnippet.GetIndexNumberFromLayerName(pActiveView, strLayerName);
ILayer pLayer = mForm.axMapControl1.get_Layer(intLIndex);
IFeatureLayer pFLayer = pLayer as IFeatureLayer;
IFeatureClass pFClass = pFLayer.FeatureClass;
//Create Rendering of Mean Value at Target Layer
int intGCBreakeCount = Convert.ToInt32(nudGCNClasses.Value);
string strGCRenderField = cboValueField.Text;
IGeoFeatureLayer pGeofeatureLayer;
if (chkNewLayer.Checked == true)
{
IFeatureLayer pflOutput = new FeatureLayerClass();
pflOutput.FeatureClass = pFClass;
pflOutput.Name = txtNewLayer.Text;
pflOutput.Visible = true;
pGeofeatureLayer = (IGeoFeatureLayer)pflOutput;
}
else
{
pGeofeatureLayer = (IGeoFeatureLayer)pFLayer;
}
ITable pTable = (ITable)pFClass;
IClassifyGEN pClassifyGEN;
switch (cboGCClassify.Text)
{
case "Equal Interval":
pClassifyGEN = new EqualIntervalClass();
break;
case "Geometrical Interval":
pClassifyGEN = new GeometricalInterval();
break;
case "Natural Breaks":
pClassifyGEN = new NaturalBreaksClass();
break;
case "Quantile":
pClassifyGEN = new QuantileClass();
break;
case "StandardDeviation":
pClassifyGEN = new StandardDeviationClass();
break;
default:
pClassifyGEN = new NaturalBreaksClass();
break;
}
//Need to be changed 1/29/15
ITableHistogram pTableHistogram = new BasicTableHistogramClass();
pTableHistogram.Field = strGCRenderField;
pTableHistogram.Table = pTable;
IBasicHistogram pHistogram = (IBasicHistogram)pTableHistogram;
object xVals, frqs;
pHistogram.GetHistogram(out xVals, out frqs);
pClassifyGEN.Classify(xVals, frqs, intGCBreakeCount);
ClassBreaksRenderer pRender = new ClassBreaksRenderer();
double[] cb = (double[])pClassifyGEN.ClassBreaks;
pRender.Field = strGCRenderField;
pRender.BreakCount = intGCBreakeCount;
pRender.MinimumBreak = cb[0];
//' create our color ramp
IAlgorithmicColorRamp pColorRamp = new AlgorithmicColorRampClass();
pColorRamp.Algorithm = esriColorRampAlgorithm.esriCIELabAlgorithm;
IRgbColor pColor1 = new RgbColor();
IRgbColor pColor2 = new RgbColor();
//Can Change the color in here!
pColor1.Red = picSymolfrom.BackColor.R;
pColor1.Green = picSymolfrom.BackColor.G;
pColor1.Blue = picSymolfrom.BackColor.B;
Boolean blnOK = true;
pColor2.Red = picSymbolTo.BackColor.R;
pColor2.Green = picSymbolTo.BackColor.G;
pColor2.Blue = picSymbolTo.BackColor.B;
pColorRamp.FromColor = pColor1;
pColorRamp.ToColor = pColor2;
pColorRamp.Size = intGCBreakeCount;
pColorRamp.CreateRamp(out blnOK);
IEnumColors pEnumColors = pColorRamp.Colors;
pEnumColors.Reset();
IRgbColor pColorOutline = new RgbColor();
//Can Change the color in here!
pColorOutline.Red = picGCLineColor.BackColor.R;
pColorOutline.Green = picGCLineColor.BackColor.G;
pColorOutline.Blue = picGCLineColor.BackColor.B;
double dblGCOutlineSize = Convert.ToDouble(nudGCLinewidth.Value);
ICartographicLineSymbol pOutLines = new CartographicLineSymbol();
pOutLines.Width = dblGCOutlineSize;
pOutLines.Color = (IColor)pColorOutline;
//' use this interface to set dialog properties
IClassBreaksUIProperties pUIProperties = (IClassBreaksUIProperties)pRender;
pUIProperties.ColorRamp = "Custom";
ISimpleFillSymbol pSimpleFillSym;
//' be careful, indices are different for the diff lists
for (int j = 0; j < intGCBreakeCount; j++)
{
pRender.Break[j] = cb[j + 1];
pRender.Label[j] = Math.Round(cb[j], 2).ToString() + " - " + Math.Round(cb[j + 1], 2).ToString();
pUIProperties.LowBreak[j] = cb[j];
pSimpleFillSym = new SimpleFillSymbolClass();
pSimpleFillSym.Color = pEnumColors.Next();
pSimpleFillSym.Outline = pOutLines;
pRender.Symbol[j] = (ISymbol)pSimpleFillSym;
}
pGeofeatureLayer.Renderer = (IFeatureRenderer)pRender;
if (chkNewLayer.Checked == true)
{
mForm.axMapControl1.ActiveView.FocusMap.AddLayer(pGeofeatureLayer);
}
////* Uncertainty Part *////
//Declare variables in if parts
if (tcUncern.SelectedIndex == 0) //Graduated Color
{
int intUncernBreakCount = Convert.ToInt32(nudCoNClasses.Value);
string strUncerFieldName = cboUField.Text;
IFeatureLayer pflUncern = new FeatureLayerClass();
pflUncern.FeatureClass = pFClass;
pflUncern.Name = cboSourceLayer.Text + " Uncertainty";
pflUncern.Visible = true;
IGeoFeatureLayer pGFLUncern = (IGeoFeatureLayer)pflUncern;
switch (cboTeClassify.Text)
{
case "Equal Interval":
pClassifyGEN = new EqualIntervalClass();
break;
case "Geometrical Interval":
pClassifyGEN = new GeometricalInterval();
break;
case "Natural Breaks":
pClassifyGEN = new NaturalBreaksClass();
break;
case "Quantile":
pClassifyGEN = new QuantileClass();
break;
case "StandardDeviation":
pClassifyGEN = new StandardDeviationClass();
break;
default:
pClassifyGEN = new NaturalBreaksClass();
break;
}
//Need to be changed 1/29/15
pTableHistogram = new BasicTableHistogramClass();
pTableHistogram.Field = strUncerFieldName;
pTableHistogram.Table = pTable;
pHistogram = (IBasicHistogram)pTableHistogram;
pHistogram.GetHistogram(out xVals, out frqs);
pClassifyGEN.Classify(xVals, frqs, intUncernBreakCount);
pRender = new ClassBreaksRenderer();
cb = (double[])pClassifyGEN.ClassBreaks;
pRender.Field = strUncerFieldName;
pRender.BreakCount = intUncernBreakCount;
pRender.MinimumBreak = cb[0];
IClassBreaksUIProperties pUIColProperties = (IClassBreaksUIProperties)pRender;
pUIColProperties.ColorRamp = "Custom";
pColorRamp = new AlgorithmicColorRampClass();
pColorRamp.Algorithm = esriColorRampAlgorithm.esriCIELabAlgorithm;
pColor1 = new RgbColor();
pColor2 = new RgbColor();
//Can Change the color in here!
pColor1 = pSnippet.getRGB(picCoColorFrom.BackColor.R, picCoColorFrom.BackColor.G, picCoColorFrom.BackColor.B);
pColor2 = pSnippet.getRGB(picCoColorTo.BackColor.R, picCoColorTo.BackColor.G, picCoColorTo.BackColor.B);
if (pColor1 == null || pColor2 == null)
{
return;
}
blnOK = true;
pColorRamp.FromColor = pColor1;
pColorRamp.ToColor = pColor2;
pColorRamp.Size = intUncernBreakCount;
pColorRamp.CreateRamp(out blnOK);
pEnumColors = pColorRamp.Colors;
pEnumColors.Reset();
pColorOutline = pSnippet.getRGB(picCoLineColor.BackColor.R, picCoLineColor.BackColor.G, picCoLineColor.BackColor.B);
if (pColorOutline == null)
{
return;
}
double dblCoOutlineSize = Convert.ToDouble(nudCoLinewidth.Value);
pOutLines = new CartographicLineSymbol();
pOutLines.Width = dblCoOutlineSize;
pOutLines.Color = (IColor)pColorOutline;
//' use this interface to set dialog properties
pUIColProperties = (IClassBreaksUIProperties)pRender;
pUIColProperties.ColorRamp = "Custom";
ISimpleMarkerSymbol pSimpleMarkerSym;
double dblCoSymSize = Convert.ToDouble(nudCoSymbolSize.Value);
//' be careful, indices are different for the diff lists
for (int j = 0; j < intUncernBreakCount; j++)
{
pRender.Break[j] = cb[j + 1];
pRender.Label[j] = Math.Round(cb[j], 2).ToString() + " - " + Math.Round(cb[j + 1], 2).ToString();
pUIColProperties.LowBreak[j] = cb[j];
pSimpleMarkerSym = new SimpleMarkerSymbolClass();
pSimpleMarkerSym.Size = dblCoSymSize;
pSimpleMarkerSym.Color = pEnumColors.Next();
pSimpleMarkerSym.Outline = true;
pSimpleMarkerSym.OutlineColor = pColorOutline;
pSimpleMarkerSym.OutlineSize = dblCoOutlineSize;
pRender.Symbol[j] = (ISymbol)pSimpleMarkerSym;
}
pGFLUncern.Renderer = (IFeatureRenderer)pRender;
mForm.axMapControl1.ActiveView.FocusMap.AddLayer(pGFLUncern);
}
else if (tcUncern.SelectedIndex == 1) //Texture
{
//Create Rendering of Uncertainty at Target Layer
int intUncernBreakCount = Convert.ToInt32(nudTeNClasses.Value);
string strUncerFieldName = cboUField.Text;
IFeatureLayer pflUncern = new FeatureLayerClass();
pflUncern.FeatureClass = pFClass;
pflUncern.Name = cboSourceLayer.Text + " Uncertainty";
pflUncern.Visible = true;
IGeoFeatureLayer pGFLUncern = (IGeoFeatureLayer)pflUncern;
switch (cboTeClassify.Text)
{
case "Equal Interval":
pClassifyGEN = new EqualIntervalClass();
break;
case "Geometrical Interval":
pClassifyGEN = new GeometricalInterval();
break;
case "Natural Breaks":
pClassifyGEN = new NaturalBreaksClass();
break;
case "Quantile":
pClassifyGEN = new QuantileClass();
break;
case "StandardDeviation":
pClassifyGEN = new StandardDeviationClass();
break;
default:
pClassifyGEN = new NaturalBreaksClass();
break;
}
//Need to be changed 1/29/15
pTableHistogram = new BasicTableHistogramClass();
pTableHistogram.Field = strUncerFieldName;
pTableHistogram.Table = pTable;
pHistogram = (IBasicHistogram)pTableHistogram;
pHistogram.GetHistogram(out xVals, out frqs);
pClassifyGEN.Classify(xVals, frqs, intUncernBreakCount);
pRender = new ClassBreaksRenderer();
cb = (double[])pClassifyGEN.ClassBreaks;
pRender.Field = strUncerFieldName;
pRender.BreakCount = intUncernBreakCount;
pRender.MinimumBreak = cb[0];
IClassBreaksUIProperties pUITexProperties = (IClassBreaksUIProperties)pRender;
pUITexProperties.ColorRamp = "Custom";
ILineFillSymbol pLineFillSym = new LineFillSymbolClass();
double dblFromSep = Convert.ToDouble(nudSeperationFrom.Value);
double dblToSep = Convert.ToDouble(nudSeperationTo.Value);
double dblInstantSep = (dblFromSep - dblToSep) / Convert.ToDouble(intUncernBreakCount - 1);
double dblFromAngle = Convert.ToDouble(nudAngleFrom.Value);
double dblToAngle = Convert.ToDouble(nudAngleFrom.Value); // Remove the angle part (04/16)
double dblInstantAngle = (dblToAngle - dblFromAngle) / Convert.ToDouble(intUncernBreakCount - 1);
double dblLinewidth = Convert.ToDouble(nudTeLinewidth.Value);
IRgbColor pLineColor = new RgbColor();
pLineColor.Red = picTeLineColor.BackColor.R;
pLineColor.Green = picTeLineColor.BackColor.G;
pLineColor.Blue = picTeLineColor.BackColor.B;
//' be careful, indices are different for the diff lists
for (int j = 0; j < intUncernBreakCount; j++)
{
pRender.Break[j] = cb[j + 1];
pRender.Label[j] = Math.Round(cb[j], 5).ToString() + " - " + Math.Round(cb[j + 1], 5).ToString();
pUITexProperties.LowBreak[j] = cb[j];
pLineFillSym = new LineFillSymbolClass();
pLineFillSym.Angle = dblFromAngle + (dblInstantAngle * Convert.ToDouble(j));
pLineFillSym.Color = pLineColor;
pLineFillSym.Separation = dblFromSep - (dblInstantSep * Convert.ToDouble(j));
pLineFillSym.LineSymbol.Width = dblLinewidth;
pRender.Symbol[j] = (ISymbol)pLineFillSym;
}
pGFLUncern.Renderer = (IFeatureRenderer)pRender;
mForm.axMapControl1.ActiveView.FocusMap.AddLayer(pGFLUncern);
}
else if (tcUncern.SelectedIndex == 2) //For Proportional Symbols
{
string strUncerFieldName = cboUField.Text;
double dblMinPtSize = Convert.ToDouble(nudProSymbolSize.Value);
double dblLineWidth = Convert.ToDouble(nudProLinewidth.Value);
IFeatureLayer pflUncern = new FeatureLayerClass();
pflUncern.FeatureClass = pFClass;
pflUncern.Name = cboSourceLayer.Text + " Uncertainty";
pflUncern.Visible = true;
//Find Fields
int intUncernIdx = pTable.FindField(strUncerFieldName);
//Find Min value
//Set to initial value for min
IField pUncernField = pTable.Fields.get_Field(intUncernIdx);
ICursor pCursor = pTable.Search(null, false);
IDataStatistics pDataStat = new DataStatisticsClass();
pDataStat.Field = pUncernField.Name;
pDataStat.Cursor = pCursor;
IStatisticsResults pStatResults = pDataStat.Statistics;
double dblMinValue = pStatResults.Minimum;
double dblMaxValue = pStatResults.Maximum;
pCursor.Flush();
IRgbColor pSymbolRgb = pSnippet.getRGB(picProSymbolColor.BackColor.R, picProSymbolColor.BackColor.G, picProSymbolColor.BackColor.B);
if (pSymbolRgb == null)
{
return;
}
IRgbColor pLineRgb = pSnippet.getRGB(picProiLineColor.BackColor.R, picProiLineColor.BackColor.G, picProiLineColor.BackColor.B);
if (pLineRgb == null)
{
return;
}
ISimpleMarkerSymbol pSMarkerSym = new SimpleMarkerSymbolClass();
pSMarkerSym.Style = esriSimpleMarkerStyle.esriSMSCircle;
pSMarkerSym.Size = dblMinPtSize;
pSMarkerSym.OutlineSize = dblLineWidth;
pSMarkerSym.Outline = true;
pSMarkerSym.OutlineColor = (IColor)pLineRgb;
pSMarkerSym.Color = (IColor)pSymbolRgb;
IGeoFeatureLayer pGFLUncern = (IGeoFeatureLayer)pflUncern;
IProportionalSymbolRenderer pUncernRender = new ProportionalSymbolRendererClass();
pUncernRender.LegendSymbolCount = 2; //Need to be changed 0219
pUncernRender.Field = strUncerFieldName;
pUncernRender.MaxDataValue = dblMaxValue;
pUncernRender.MinDataValue = dblMinValue;
pUncernRender.MinSymbol = (ISymbol)pSMarkerSym;
pUncernRender.ValueUnit = esriUnits.esriUnknownUnits;
pUncernRender.BackgroundSymbol = null;
pUncernRender.CreateLegendSymbols();
pGFLUncern.Renderer = (IFeatureRenderer)pUncernRender;
mForm.axMapControl1.ActiveView.FocusMap.AddLayer(pGFLUncern);
}
else if (tcUncern.SelectedIndex == 3) // Bar
{
string strUncerFieldName = cboUField.Text;
double dblMaxLength = Convert.ToDouble(nudMaxBarHeight.Value);
double dblBarWidth = Convert.ToDouble(nudBarWidth.Value);
IFeatureLayer pflUncern = new FeatureLayerClass();
pflUncern.FeatureClass = pFClass;
pflUncern.Name = cboSourceLayer.Text + " Uncertainty";
pflUncern.Visible = true;
int intUncernIdx = pTable.FindField(strUncerFieldName);
IField pUncernField = pTable.Fields.get_Field(intUncernIdx);
ICursor pCursor = pTable.Search(null, false);
IDataStatistics pDataStat = new DataStatisticsClass();
pDataStat.Field = pUncernField.Name;
pDataStat.Cursor = pCursor;
IStatisticsResults pStatResults = pDataStat.Statistics;
double dblMaxValue = pStatResults.Maximum;
pCursor.Flush();
IChartRenderer chartRenderer = new ChartRendererClass();
IRendererFields rendererFields = chartRenderer as IRendererFields;
rendererFields.AddField(strUncerFieldName);
IBarChartSymbol barChartSymbol = new BarChartSymbolClass();
barChartSymbol.Width = dblBarWidth;
IMarkerSymbol markerSymbol = barChartSymbol as IMarkerSymbol;
markerSymbol.Size = dblMaxLength;
IChartSymbol chartSymbol = barChartSymbol as IChartSymbol;
chartSymbol.MaxValue = dblMaxValue;
ISymbolArray symbolArray = barChartSymbol as ISymbolArray;
IFillSymbol fillSymbol = new SimpleFillSymbolClass();
fillSymbol.Color = pSnippet.getRGB(picBarSymCol.BackColor.R, picBarSymCol.BackColor.G, picBarSymCol.BackColor.B);
if (fillSymbol.Color == null)
{
return;
}
symbolArray.AddSymbol(fillSymbol as ISymbol);
if (chk3D.Checked)
{
I3DChartSymbol p3DChartSymbol = barChartSymbol as I3DChartSymbol;
p3DChartSymbol.Display3D = true;
p3DChartSymbol.Thickness = 3;
}
chartRenderer.ChartSymbol = barChartSymbol as IChartSymbol;
SimpleFillSymbol pBaseFillSym = new SimpleFillSymbolClass();
//pBaseFillSym.Color = pSnippet.getRGB(picBarSymCol.BackColor.R, picBarSymCol.BackColor.G, picBarSymCol.BackColor.B);
//chartRenderer.BaseSymbol = pBaseFillSym as ISymbol;
chartRenderer.UseOverposter = false;
chartRenderer.CreateLegend();
IGeoFeatureLayer pGFLUncern = (IGeoFeatureLayer)pflUncern;
pGFLUncern.Renderer = (IFeatureRenderer)chartRenderer;
mForm.axMapControl1.ActiveView.FocusMap.AddLayer(pGFLUncern);
}
#region illumination
//This function is not applied in this version. 032317 HK
//}
// else if (tcUncern.SelectedIndex == 4) //illumination
// {
// frmProgress pfrmProgress = new frmProgress();
// pfrmProgress.lblStatus.Text = "Processing:";
// pfrmProgress.pgbProgress.Style = ProgressBarStyle.Marquee;
// pfrmProgress.Show();
// string strUncerFieldName = cboUField.Text;
// IGeoDataset geoDataset_output = createRasterfromPolygon(pFClass, strUncerFieldName, pFLayer, 100);
// double altitude = Convert.ToDouble(nudAltitude.Value);
// double azimuth = Convert.ToDouble(nudAzimuth.Value);
// object zFactor = Convert.ToDouble(nudZFactor.Value);
// ISurfaceOp2 pSurfOP = new RasterSurfaceOpClass();
// IRaster pOutputDS = (IRaster)pSurfOP.HillShade(geoDataset_output, azimuth, altitude, true, ref zFactor);
// ((IDataset)geoDataset_output).Delete();
// // Create a raster for viewing
// ESRI.ArcGIS.Carto.IRasterLayer rasterLayer = new ESRI.ArcGIS.Carto.RasterLayerClass();
// rasterLayer.CreateFromRaster(pOutputDS);
// //Calculate hillshade value at slope 0 to set as background value
// double dblRadian = (Math.PI / 180) * (90 - altitude);
// double dblBackValue = Math.Truncate(255 * Math.Cos(dblRadian));
// IRasterStretch pRasterStretch = new RasterStretchColorRampRendererClass();
// IColor pColor = new RgbColorClass();
// pColor.NullColor = true;
// pColor.Transparency = 0;
// pRasterStretch.Background = true;
// pRasterStretch.BackgroundColor = pColor;
// pRasterStretch.set_BackgroundValues(ref dblBackValue);
// rasterLayer.Name = "Uncertainty of " + strGCRenderField;
// rasterLayer.Renderer = pRasterStretch as IRasterRenderer;
// rasterLayer.Renderer.Update();
// //Apply Transparency
// ILayerEffects pLayerEffect = (ILayerEffects)rasterLayer;
// pLayerEffect.Transparency = Convert.ToInt16(nudTransparent.Value);
// pfrmProgress.Close();
// // Add the raster to the map
// pActiveView.FocusMap.AddLayer(rasterLayer);
// }
// mForm.axMapControl1.ActiveView.Refresh();
// mForm.axTOCControl1.Update();
#endregion
}
catch (Exception ex)
{
frmErrorLog pfrmErrorLog = new frmErrorLog(); pfrmErrorLog.ex = ex; pfrmErrorLog.ShowDialog();
return;
}
}
//柱状表图
private void button5_Click(object sender, EventArgs e)
{
IGeoFeatureLayer geoFeatureLayer;
IFeatureLayer featureLayer;
ITable table;
ICursor cursor;
IRowBuffer rowBuffer;
//设置渲染要素
string field1 = "SHAPE_Area";
string field2 = "SHAPE_Leng";
//获取渲染图层
geoFeatureLayer = getGeoLayer("东丰县行政区域");
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();
}
//创建水平排列符号
IBarChartSymbol barChartSymbol = new BarChartSymbolClass();
barChartSymbol.Width = 10;
IMarkerSymbol markerSymbol = barChartSymbol as IMarkerSymbol;
markerSymbol.Size = 50;
IChartSymbol chartSymbol = barChartSymbol as IChartSymbol;
chartSymbol.MaxValue = maxValue;
//添加渲染符号
ISymbolArray symbolArray = barChartSymbol 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 = barChartSymbol 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();
}
//此专题图制作跟StackedChart差不多
private void btnBarChartRender_Click(object sender, EventArgs e)
{
IGeoFeatureLayer pGeoFeatLyr = this.mainMapControl.get_Layer(0) as IGeoFeatureLayer;
//用DataStatistics对象,得到两个字段最大值的较大值(最最大)
double p1, p2, max;
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);
pDataStatistics.Cursor = pCursor;
pDataStatistics.Field = "GDP_1994（";
p2 = pDataStatistics.Statistics.Maximum;
max = p1 > p2 ? p1 : p2;
//以下生成好三个SimpleFillSymbol,留作后用
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);
//创建并设置BarChartSymbol,以及设置好BarChartSymbol里的各自Symbol
IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
pBarChartSymbol.Width = 6;//宽度
pBarChartSymbol.Spacing = 1;//Bar之间的间隔
IChartSymbol pChartSymbol = pBarChartSymbol as IChartSymbol;
pChartSymbol.MaxValue = max;//用到了上面求出的最大值
ISymbolArray pSymbolArray = pBarChartSymbol as ISymbolArray;//用于在BarChartSymbol里添加Symbol,关键
pSymbolArray.AddSymbol((ISymbol)pSimpleFillSymbol);
pSymbolArray.AddSymbol((ISymbol)pSimpleFillSymbol2);
IMarkerSymbol pMarkerSymbol = pBarChartSymbol as IMarkerSymbol;
pMarkerSymbol.Size = 60;//BarChartSymbol符号大小
//以下创建并设置着色对象
IChartRenderer pChartRenderer = new ChartRendererClass();
IRendererFields pRendererFields = pChartRenderer as IRendererFields;//添加用于着色的字段,关键
pRendererFields.AddField("GDP_1994（", "GDP_1994（");
pRendererFields.AddField("GDP_1999（", "GDP_1999（");
pChartRenderer.ChartSymbol = pChartSymbol;//赋给上面创建的BarChartSymbol
pChartRenderer.BaseSymbol = pSimpleFillSymbol3 as ISymbol;
pChartRenderer.Label = "GDP";
pChartRenderer.UseOverposter = true;
pChartRenderer.CreateLegend();//创建图例,关键
pGeoFeatLyr.Renderer = pChartRenderer as IFeatureRenderer;
this.mainMapControl.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
this.axTOCControl.Update();
}
//BarChartSymbol
private void button5_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();
}
//创建水平排列符号
IBarChartSymbol barChartSymbol = new BarChartSymbolClass();
barChartSymbol.Width = 10;
IMarkerSymbol markerSymbol = barChartSymbol as IMarkerSymbol;
markerSymbol.Size = 50;
IChartSymbol chartSymbol = barChartSymbol as IChartSymbol;
chartSymbol.MaxValue = maxValue;
//添加渲染符号
ISymbolArray symbolArray = barChartSymbol 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 = barChartSymbol 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();
}
public BarRender(AxMapControl pMapcontrol, IFeatureLayer pFtLayer, String pFieldName1, string pFieldName2)
{
//IGeoFeatureLayer pGeoFeatureLayer = pFtLayer as IGeoFeatureLayer;
//IFeatureClass pFeatureClass = pFtLayer.FeatureClass;
////定义柱状图渲染组建对象
//IChartRenderer pChartRenderer = new ChartRendererClass();
////定义渲染字段对象并给字段对象实例化为pChartRenderer
//IRendererFields pRendererFields;
//pRendererFields = (IRendererFields)pChartRenderer;
////向渲染字段对象中添加字段--- 待补充自定义添加
//pRendererFields.AddField(pFieldName1, pFieldName1);
//pRendererFields.AddField(pFieldName2, pFieldName2);
//ITable pTable;
//pTable = pGeoFeatureLayer as ITable;
//int[] pFieldIndecies = new int[2];
//pFieldIndecies[0] = pTable.FindField(pFieldName1);
//pFieldIndecies[1] = pTable.FindField(pFieldName2);
//IDataStatistics pDataStat = new DataStatisticsClass();
//IFeatureCursor pFtCursor = pFtLayer.FeatureClass.Search(null, false);
//pDataStat.Cursor = pFtCursor as ICursor;
//pDataStat.Field = pFieldName2;
//double pMax = pDataStat.Statistics.Maximum;
//// 定义并设置渲染时用的chart marker symbol
//IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
//pBarChartSymbol.Width = 6;
//IChartSymbol pChartSymbol;
//pChartSymbol = pBarChartSymbol as IChartSymbol;
//IMarkerSymbol pMarkerSymbol;
//pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
//IFillSymbol pFillSymbol;
////设置pChartSymbol的最大值
//pChartSymbol.MaxValue = pMax;
//// 设置bars的最大高度
//pMarkerSymbol.Size = 80;
////下面给每一个bar设置符号
////定义符号数组
//ISymbolArray pSymbolArray = (ISymbolArray)pBarChartSymbol;
////添加第一个符号
//pFillSymbol = new SimpleFillSymbolClass();
//pFillSymbol.Color = GetRGBColor(193, 252, 179) as IColor;
//pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
////添加第二个符号
//pFillSymbol = new SimpleFillSymbolClass();
// pFillSymbol.Color = GetRGBColor(145, 55, 251) as IColor;
//pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
//pChartRenderer.ChartSymbol = pChartSymbol as IChartSymbol;
////pChartRenderer.Label = "AREA";
//pChartRenderer.CreateLegend();
//pChartRenderer.UseOverposter = false;
////将柱状图渲染对象与渲染图层挂钩
//pGeoFeatureLayer.Renderer = (IFeatureRenderer)pChartRenderer;
////刷新地图和TOOCotrol
//IActiveView pActiveView = pMapcontrol .ActiveView as IActiveView;
//pActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
//获取当前图层 ，并把它设置成IGeoFeatureLayer的实例
IMap pMap = pMapcontrol.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;
//定义柱状图渲染组建对象
IChartRenderer pChartRenderer = new ChartRendererClass();
//定义渲染字段对象并给字段对象实例化为pChartRenderer
IRendererFields pRendererFields;
pRendererFields = (IRendererFields)pChartRenderer;
//向渲染字段对象中添加字段--- 待补充自定义添加
pRendererFields.AddField(pFieldName1, pFieldName1);
pRendererFields.AddField(pFieldName2, pFieldName2);
// 通过查找features的所用字段的值，计算出数据字段的最大值，作为设置柱状图的比例大小的依据
ITable pTable;
int fieldNumber;
pTable = pGeoFeatureLayer as ITable;
// 查找出geoFeatureLayer的属性表中的字段个数
fieldNumber = pTable.FindField(pFieldName1);
if (fieldNumber == -1)
{
MessageBox.Show("Can't find field called ", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
const int numFields = 2;// 设置bars的个数
int[] fieldIndecies = new int[2];
//long fieldIndex;
double maxValue;
bool firstValue;
//double[] fieldValue=new double[5];
double fieldValue;
fieldIndecies[0] = pTable.FindField(pFieldName1);
fieldIndecies[1] = pTable.FindField(pFieldName2);
firstValue = true;
maxValue = 0;
int n = pFeatureClass.FeatureCount(null);
for (int i = 0; i < numFields; i++)
{
IFeatureCursor pFeatureCursor = pFeatureClass.Search(null, false);
for (int j = 0; j < n; j++)
{
IFeature pFeature = pFeatureCursor.NextFeature();
fieldValue = Convert.ToDouble(pFeature.get_Value(fieldIndecies[i]));
if (firstValue)
{
//给maxValue赋初值
maxValue = fieldValue;
firstValue = false;
}
else if (fieldValue > maxValue)
{
maxValue = fieldValue;
}
}
}
if (maxValue <= 0)
{
MessageBox.Show("Failed to calculate the maximum value or maxvalue is 0.", "Message", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
// 定义并设置渲染时用的chart marker symbol
IBarChartSymbol pBarChartSymbol = new BarChartSymbolClass();
pBarChartSymbol.Width = 6;
IChartSymbol pChartSymbol;
pChartSymbol = pBarChartSymbol as IChartSymbol;
IMarkerSymbol pMarkerSymbol;
pMarkerSymbol = (IMarkerSymbol)pBarChartSymbol;
IFillSymbol pFillSymbol;
//设置pChartSymbol的最大值
pChartSymbol.MaxValue = maxValue;
// 设置bars的最大高度
pMarkerSymbol.Size = 16;
//下面给每一个bar设置符号
//定义符号数组
ISymbolArray pSymbolArray = (ISymbolArray)pBarChartSymbol;
//克隆pFillSymbol用于符号操作
//IClone pSourceClone = pFillSymbol as IClone;
//ISimpleFillSymbol pSimpleFillSymbol = pSourceClone.Clone() as ISimpleFillSymbol;
// 向符号数组中添加设置后的符号
//pSimpleFillSymbol.Color = GetRGBColor(193, 252, 179);
//pSymbolArray.AddSymbol(pSimpleFillSymbol as ISymbol);
//pSimpleFillSymbol.Color = GetRGBColor(145, 55, 200);
//pSymbolArray.AddSymbol(pSimpleFillSymbol as ISymbol);
//添加第一个符号
pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = GetRGBColor(193, 252, 179) as IColor;
pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
//添加第二个符号
pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = GetRGBColor(145, 55, 251) as IColor;
pSymbolArray.AddSymbol(pFillSymbol as ISymbol);
// 设置背景符号
//pSimpleFillSymbol.Color = GetRGBColor(239, 150, 190);
//pChartRenderer.BaseSymbol = pSimpleFillSymbol as ISymbol;
// Disable overpoaster 让符号处于图形中央
pChartRenderer.UseOverposter = false;
//pChartRenderer.ChartSymbol = pSymbolArray as IChartSymbol;
pChartRenderer.ChartSymbol = pChartSymbol as IChartSymbol;
//pChartRenderer.Label = "AREA";
pChartRenderer.CreateLegend();
//将柱状图渲染对象与渲染图层挂钩
pGeoFeatureLayer.Renderer = (IFeatureRenderer)pChartRenderer;
pGeoFeatureLayer.DisplayField = pFieldName1;
//刷新地图和TOOCotrol
IActiveView pActiveView = pMapcontrol.Map as IActiveView;
pActiveView.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;
}
}
}
}