private void chooseNumericField() //选择数值型字段
{
fieldChoose(field =>
{
if (field.Type == esriFieldType.esriFieldTypeDouble || field.Type == esriFieldType.esriFieldTypeSingle || field.Type == esriFieldType.esriFieldTypeInteger ||
field.Type == esriFieldType.esriFieldTypeOID || field.Type == esriFieldType.esriFieldTypeSmallInteger)
{
IBasicHistogram pBasicHis = new BasicTableHistogramClass();
ITableHistogram pTabHis = (ITableHistogram)pBasicHis;
pTabHis.Field = field.Name;
ILayer Layer = (ILayer)featureLayer;
ITable pTab = (ITable)Layer;
pTabHis.Table = pTab;
object doubleArrVal, longArrFreq;
pBasicHis.GetHistogram(out doubleArrVal, out longArrFreq);
double[] ArrVal = (double[])doubleArrVal;
if (ArrVal.Length == 1)
{
return(false);
}
else
{
return(true);
}
}
else
{
return(false);
}
});
}
private void drawLine() //在表中画出值的频率分布线
{
IBasicHistogram pBasicHis = new BasicTableHistogramClass();
ITableHistogram pTabHis = (ITableHistogram)pBasicHis;
pTabHis.Field = comboBoxEdit1.Text;
ILayer Layer = (ILayer)featureLayer;
ITable pTab = (ITable)Layer;
pTabHis.Table = pTab;
object doubleArrVal, longArrFreq;
pBasicHis.GetHistogram(out doubleArrVal, out longArrFreq);
double[] ArrVal = (double[])doubleArrVal;
System.Int32[] ArrFreq = (System.Int32[])longArrFreq;
if (ArrVal.Length < 50)
{
valueChooseInChart1.drawLine(ArrVal, ArrFreq, Convert.ToInt16(spinEdit1.Text));
}
else
{
valueChooseInChart1.drawline(ArrVal.Min(), ArrVal.Max(), Convert.ToInt16(spinEdit1.Text));
}
}
public Thematic(IMapControl3 mapControl)
{
if (mapControl != null)
{
this._mapControl = mapControl;
}
_renderer = new ClassBreaksRendererClass();
_classify = new QuantileClass();
_tableHistogram = new BasicTableHistogramClass();
_colorFrom = new HsvColorClass();
_colorTo = new HsvColorClass();
_algClrRamp = new AlgorithmicColorRampClass();
}
public static void classifyRender(IFeatureLayer featLayer, string classMethod, string fieldName, IColorRamp colorRamp, int count)
{
try
{
//值分级
IBasicHistogram pBasicHis = new BasicTableHistogramClass();
ITableHistogram pTabHis = (ITableHistogram)pBasicHis;
IClassifyGEN pClassify = null;
switch (classMethod)
{
case "等间距分级":
pClassify = new EqualIntervalClass();
break;
case "自然断点分级":
pClassify = new NaturalBreaksClass();
break;
}
pTabHis.Field = fieldName;
ILayer Layer = (ILayer)featLayer;
ITable pTab = (ITable)Layer;
pTabHis.Table = pTab;
object doubleArrVal, longArrFreq;
pBasicHis.GetHistogram(out doubleArrVal, out longArrFreq);
int nDes = count;
pClassify.Classify(doubleArrVal, longArrFreq, ref nDes);
double[] ClassNum;
ClassNum = (double[])pClassify.ClassBreaks;
int ClassCountResult = ClassNum.GetUpperBound(0);
IClassBreaksRenderer pRender = new ClassBreaksRendererClass();
pRender.BreakCount = ClassCountResult;
pRender.Field = fieldName;
ISimpleFillSymbol pSym;
IColor pColor;
for (int j = 0; j < ClassCountResult; j++)
{
pColor = colorRamp.get_Color(j * (colorRamp.Size - 1) / (ClassCountResult - 1));
pRender.set_Symbol(j, getISymbolByGeomType(featLayer, pColor));
pRender.set_Break(j, ClassNum[j + 1]);
pRender.set_Label(j, ClassNum[j].ToString("0.00") + " - " + ClassNum[j + 1].ToString("0.00"));
}
IGeoFeatureLayer pGeoLyr = (IGeoFeatureLayer)Layer;
pGeoLyr.Renderer = (IFeatureRenderer)pRender;
}
catch {
XtraMessageBox.Show("嗯，哪个，就一个值，别分级了好不好^_^");
}
}
private int method_7(string string_3, ITable itable_0)
{
try
{
ITableHistogram tableHistogram = new BasicTableHistogram() as ITableHistogram;
tableHistogram.Table = itable_0;
tableHistogram.Field = string_3;
ITableHistogram histogram = tableHistogram as ITableHistogram;
if ((histogram as IStatisticsResults).Count == 0)
{
return(0);
}
return((int)(histogram as IStatisticsResults).Maximum);
}
catch (Exception exception)
{
Logger.Current.Error("", exception, "");
}
return(1);
}
public void LayerRender()
{
try
{
//值分级
IBasicHistogram pBasicHis = new BasicTableHistogramClass();
ITableHistogram pTabHis = (ITableHistogram)pBasicHis;
IClassifyGEN pClassify = null;
switch (classname)
{
case "自然断点分级":
pClassify = new NaturalBreaksClass();
break;
case "等间距分级":
pClassify = new EqualIntervalClass();
break;
}
pTabHis.Field = FiledName;
//IGeoFeatureLayer geolayer = (IGeoFeatureLayer)Layer;
ITable pTab = (ITable)Layer;
pTabHis.Table = pTab;
object doubleArrVal, longArrFreq;
pBasicHis.GetHistogram(out doubleArrVal, out longArrFreq);
int nDes = count;
pClassify.Classify(doubleArrVal, longArrFreq, ref nDes);
object classes = pClassify.ClassBreaks;
double[] ClassNum;
ClassNum = (double[])pClassify.ClassBreaks;
int ClassCountResult = ClassNum.GetUpperBound(0);
IClassBreaksRenderer pRender = new ClassBreaksRendererClass();
pRender.BreakCount = ClassCountResult;
pRender.Field = FiledName;
ISimpleFillSymbol pSym;
IColor pColor;
for (int j = 0; j < ClassCountResult; j++)
{
pColor = ramp.get_Color(j * (ramp.Size / ClassCountResult));
pSym = new SimpleFillSymbolClass();
pSym.Color = pColor;
pRender.set_Symbol(j, (ISymbol)pSym);
pRender.set_Break(j, ClassNum[j + 1]);
if (ClassNum[j].ToString().Contains("."))
{
pRender.set_Label(j, ClassNum[j].ToString("0.000") + " - " + ClassNum[j + 1].ToString("0.000"));
}
else
{
pRender.set_Label(j, ClassNum[j].ToString() + " - " + ClassNum[j + 1].ToString());
}
}
IGeoFeatureLayer pGeoLyr = (IGeoFeatureLayer)Layer;
pGeoLyr.Renderer = (IFeatureRenderer)pRender;
axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axtoccontrol.Update();
}
catch (Exception e)
{
MessageBox.Show(e.Message);
}
}
public static void UsingRasterClassifyRendered(IRasterLayer irasterLayer_0, int int_0, string string_0)
{
try
{
bool flag;
IRaster raster = irasterLayer_0.Raster;
IRasterBand band = (raster as IRasterBandCollection).Item(0);
band.HasTable(out flag);
if (flag)
{
int num2;
bool flag2;
IRasterClassifyColorRampRenderer renderer = new RasterClassifyColorRampRenderer();
IRasterRenderer renderer2 = renderer as IRasterRenderer;
renderer2.Raster = raster;
ITable attributeTable = band.AttributeTable;
ITableHistogram tableHistogram = new BasicTableHistogram() as ITableHistogram;
tableHistogram.Field = string_0;
tableHistogram.Table = attributeTable;
ITableHistogram histogram = tableHistogram as ITableHistogram;
double maximum = (histogram as IStatisticsResults).Maximum;
IClassify classify = new EqualInterval() as IClassify;
(classify as IClassifyMinMax).Minimum = (histogram as IStatisticsResults).Minimum;
(classify as IClassifyMinMax).Maximum = (histogram as IStatisticsResults).Maximum;
int_0--;
classify.Classify(ref int_0);
object classBreaks = classify.ClassBreaks;
UID classID = classify.ClassID;
IRasterClassifyUIProperties properties = renderer as IRasterClassifyUIProperties;
properties.ClassificationMethod = classID;
renderer.ClassCount = int_0;
renderer.ClassField = string_0;
for (num2 = 0; num2 < int_0; num2++)
{
renderer.set_Break(num2, ((double[])classBreaks)[num2]);
}
IColorRamp ramp = ColorManage.CreateColorRamp();
ramp.Size = int_0;
ramp.CreateRamp(out flag2);
IFillSymbol symbol = new SimpleFillSymbol();
for (num2 = 0; num2 < renderer.ClassCount; num2++)
{
double num4;
symbol.Color = ramp.get_Color(num2);
renderer.set_Symbol(num2, symbol as ISymbol);
double num3 = ((double[])classBreaks)[num2];
if (num2 == (renderer.ClassCount - 1))
{
num4 = maximum;
}
else
{
num4 = ((double[])classBreaks)[num2 + 1];
}
renderer.set_Label(num2, num3.ToString() + "-" + num4.ToString());
}
renderer2.Update();
irasterLayer_0.Renderer = renderer as IRasterRenderer;
}
else
{
UsingRasterClassifyRendered1(irasterLayer_0, int_0, string_0);
}
}
catch (Exception exception)
{
CErrorLog.writeErrorLog(null, exception, "栅格渲染");
}
}
public void ApplyClsssBreaks(IGeoFeatureLayer geoLayer, string aFieldName, long numBreaks)
{
//Create a Table from the geofeature layer
ITable table = geoLayer as ITable;
//ITableHistogram tableHistogram=new TableHistogram(); that is error but canbe coded by following
TableHistogram tableHistogram2 = new TableHistogram();
ITableHistogram tableHistogram = tableHistogram2 as ITableHistogram;
tableHistogram.Table = table;
tableHistogram.Field = aFieldName;
IHistogram histogram = tableHistogram as IHistogram;
object vValues;
object vFregs;
//先统计每个值和各个值出现的次数
histogram.GetHistogram(out vValues, out vFregs);
//Classify the data
IClassifyGEN classifyGEN = new EqualInterval();
int intBreaks = Convert.ToInt32(numBreaks);
classifyGEN.Classify(vValues, vFregs, ref intBreaks);
double[] vBreaks = (double[])classifyGEN.ClassBreaks;
//books
int classCount = vBreaks.GetUpperBound(0);
//Create the ClassBreaksRenderer
IClassBreaksRenderer classBreaksRenderer = new ClassBreaksRenderer();
//assigh a field as breaked
classBreaksRenderer.Field = aFieldName;
//passed as a string to the sub routine
//classBreaksRenderer.BreakCount =classCount;
classBreaksRenderer.BreakCount = (int)(numBreaks);
classBreaksRenderer.SortClassesAscending = false;
IRgbColor fromColor = new RgbColor();
fromColor.UseWindowsDithering = true;
fromColor.RGB = Information.RGB(0, 0, 255);
IRgbColor toColor = new RgbColor();
toColor.UseWindowsDithering = true;
toColor.RGB = Information.RGB(255, 0, 0);
//Set up the fill symbol
ISymbol pSym;
//ISimpleFillSymbol sym = new SimpleFillSymbol();
IColor fillColor;
MessageBox.Show("vBreaks.Length: " + vBreaks.Length.ToString());
IEnumColors colors = GetColors(fromColor.RGB, toColor.RGB, numBreaks);
for (int i = 0; i <= (vBreaks.Length - 2); i++)
{
fillColor = colors.Next();
//code by jin
if (geoLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon)
{
ISimpleFillSymbol sym = new SimpleFillSymbol();
sym.Color = fillColor;
pSym = sym as ISymbol;
}
else if (geoLayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline)
{
ISimpleLineSymbol sym = new SimpleLineSymbol();
sym.Color = fillColor;
pSym = sym as ISymbol;
}
else
{
ISimpleMarkerSymbol sym = new SimpleMarkerSymbol();
sym.Color = fillColor;
pSym = sym as ISymbol;
}
classBreaksRenderer.set_Break(i, vBreaks[i + 1]);
classBreaksRenderer.set_Symbol(i, pSym);
geoLayer.Renderer = classBreaksRenderer as IFeatureRenderer;
axMapControl1.ActiveView.Refresh();
axTOCControl1.Update();
}
}