internal static void UsingRasterClassifyRendered1(IRasterLayer irasterLayer_0, int int_0, string string_0)
{
bool flag;
IRaster raster = irasterLayer_0.Raster;
IRasterClassifyColorRampRenderer o = new RasterClassifyColorRampRenderer();
IRasterRenderer renderer2 = o as IRasterRenderer;
renderer2.Raster = raster;
o.ClassField = string_0;
o.ClassCount = int_0;
IClassify classify = new EqualInterval() as IClassify;
UID classID = classify.ClassID;
IRasterClassifyUIProperties properties = o as IRasterClassifyUIProperties;
properties.ClassificationMethod = classID;
renderer2.Update();
IColorRamp ramp = ColorManage.CreateColorRamp();
ramp.Size = int_0;
ramp.CreateRamp(out flag);
IFillSymbol symbol = new SimpleFillSymbol();
for (int i = 0; i < o.ClassCount; i++)
{
symbol.Color = ramp.get_Color(i);
o.set_Symbol(i, symbol as ISymbol);
}
renderer2.Update();
irasterLayer_0.Renderer = o as IRasterRenderer;
Marshal.ReleaseComObject(o);
o = null;
}
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();
}
}
