//分级渲染函数
private void RasterClassifyRender(IRasterLayer pRasterLayer)
{
try
{
IColorRamp pColorRamp = (IColorRamp)EnumStyleItem[comboBoxColor.SelectedIndex];
IRasterClassifyColorRampRenderer pRClassRend = new RasterClassifyColorRampRenderer() as IRasterClassifyColorRampRenderer;
IRasterRenderer pRRend = pRClassRend as IRasterRenderer;
IRaster pRaster = pRasterLayer.Raster;
IRasterBandCollection pRBandCol = pRaster as IRasterBandCollection;
IRasterBand pRBand = pRBandCol.Item(0);
if (pRBand.Histogram == null)
{
pRBand.ComputeStatsAndHist();
}
pRRend.Raster = pRaster;
pRRend.Update();
IRgbColor pFromColor = new RgbColor() as IRgbColor;
pFromColor.Red = 255;
pFromColor.Green = 0;
pFromColor.Blue = 0;
IRgbColor pToColor = new RgbColor() as IRgbColor;
pToColor.Red = 0;
pToColor.Green = 0;
pToColor.Blue = 255;
IAlgorithmicColorRamp colorRamp = new AlgorithmicColorRamp() as IAlgorithmicColorRamp;
//colorRamp = pColorRamp as IAlgorithmicColorRamp;///////
colorRamp.Size = comboBoxClassValue.SelectedIndex + 1;
//colorRamp.FromColor = pFromColor;
//colorRamp.ToColor = pToColor;
int nClass = comboBoxClassValue.SelectedIndex + 1;
colorRamp.FromColor = pColorRamp.get_Color(0);
colorRamp.ToColor = pColorRamp.get_Color(nClass - 1);
bool createColorRamp;
colorRamp.CreateRamp(out createColorRamp);
IFillSymbol fillSymbol = new SimpleFillSymbol() as IFillSymbol;
for (int i = 0; i < nClass; i++)
{
fillSymbol.Color = colorRamp.get_Color(i);
pRClassRend.set_Symbol(i, fillSymbol as ISymbol);
pRClassRend.set_Label(i, pRClassRend.get_Break(i).ToString("0.00"));
}
pRasterLayer.Renderer = pRRend;
m_mapControl.Refresh();
}
catch (Exception e)
{
MessageBox.Show("创建失败！");
}
}
public void createSSTrst(ILayer layer)
{
IRasterClassifyColorRampRenderer pRClassRend = new RasterClassifyColorRampRenderer() as IRasterClassifyColorRampRenderer;
IRasterRenderer pRRend = pRClassRend as IRasterRenderer;
IRasterLayer rstLayer = layer as IRasterLayer;
IRaster pRaster = rstLayer.Raster;
IRasterBandCollection pRBandCol = pRaster as IRasterBandCollection;
IRasterBand pRBand = pRBandCol.Item(0);
if(pRBand.Histogram == null)
{
pRBand.ComputeStatsAndHist();
}
pRRend.Raster = pRaster;
pRClassRend.ClassCount = 10;
pRRend.Update();
IRgbColor pFromColor = new RgbColor() as IRgbColor;
pFromColor.Red = 0;
pFromColor.Green = 0;
pFromColor.Blue = 255;
IRgbColor pToColor = new RgbColor() as IRgbColor;
pToColor.Red = 255;
pToColor.Green = 0;
pToColor.Blue = 0;
IAlgorithmicColorRamp colorRamp = new AlgorithmicColorRamp() as IAlgorithmicColorRamp;
colorRamp.Size = 10;
colorRamp.FromColor = pFromColor;
colorRamp.ToColor = pToColor;
bool createColorRamp;
colorRamp.CreateRamp(out createColorRamp);
IFillSymbol fillSymbol = new SimpleFillSymbol() as IFillSymbol;
for(int i = 0; i < pRClassRend.ClassCount; i++)
{
fillSymbol.Color = colorRamp.get_Color(i);
pRClassRend.set_Symbol(i, fillSymbol as ISymbol);
pRClassRend.set_Label(i, pRClassRend.get_Break(i).ToString("0.00"));
}
rstLayer.Renderer = pRRend;
axMapControl1.AddLayer(rstLayer);
this.axMapControl1.ActiveView.Refresh();
this.axTOCControl1.Update();
}
public void funColorForRaster_Classify(IRasterLayer pRasterLayer)
{
IRasterClassifyColorRampRenderer pRClassRend = new
RasterClassifyColorRampRenderer() as IRasterClassifyColorRampRenderer;
IRasterRenderer pRRend = pRClassRend as IRasterRenderer;
IRaster pRaster = pRasterLayer.Raster;//栅格图
IRasterBandCollection pRBandCol = pRaster as IRasterBandCollection;
IRasterBand pRBand = pRBandCol.Item(0);
if (pRBand.Histogram == null)
{
pRBand.ComputeStatsAndHist();
}
pRRend.Raster = pRaster;
pRClassRend.ClassCount = 10;
pRRend.Update();
IRgbColor pFromColor = new RgbColor() as IRgbColor;
pFromColor.Red = 255;
pFromColor.Green = 0;
pFromColor.Blue = 0;
IRgbColor pToColor = new RgbColor() as IRgbColor;
pToColor.Red = 0;
pToColor.Green = 0;
pToColor.Blue = 255;
IAlgorithmicColorRamp colorRamp = new AlgorithmicColorRamp() as
IAlgorithmicColorRamp;
colorRamp.Size = 10;
colorRamp.FromColor = pFromColor;
colorRamp.ToColor = pToColor;
bool createColorRamp;
colorRamp.CreateRamp(out createColorRamp);
IFillSymbol fillSymbol = new SimpleFillSymbol() as IFillSymbol;
for (int i = 0; i < pRClassRend.ClassCount; i++)
{
fillSymbol.Color = colorRamp.get_Color(i);
pRClassRend.set_Symbol(i, fillSymbol as ISymbol);
pRClassRend.set_Label(i,
pRClassRend.get_Break(i).ToString("0.00"));
}
pRasterLayer.Renderer = pRRend;
IActiveView activeview = this.axMapControl1.ActiveView;
activeview.ContentsChanged();
//刷新窗口
activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null,
null);
}
public void funColorForRaster_Classify(IRasterLayer pRasterLayer, int number)
{
IRasterClassifyColorRampRenderer pRClassRend = new
RasterClassifyColorRampRenderer() as IRasterClassifyColorRampRenderer;
IRasterRenderer pRRend = pRClassRend as IRasterRenderer;
IRaster pRaster = pRasterLayer.Raster;//栅格图层转换为栅格图
IRasterBandCollection pRBandCol = pRaster as IRasterBandCollection;
IRasterBand pRBand = pRBandCol.Item(0);
if (pRBand.Histogram == null)
{
pRBand.ComputeStatsAndHist();
}
pRRend.Raster = pRaster;
pRClassRend.ClassCount = number;//设置分级层次，默认为10
pRRend.Update();
//设置初始渐变色和结束渐变色
MessageBox.Show("请选择初始颜色", "颜色选择", MessageBoxButtons.OK, MessageBoxIcon.Information);
IRgbColor pFromColor = new RgbColor() as IRgbColor;
selectColor(pFromColor);
MessageBox.Show("请选择结束颜色", "颜色选择", MessageBoxButtons.OK, MessageBoxIcon.Information);
IRgbColor pToColor = new RgbColor() as IRgbColor;
selectColor(pToColor);
IAlgorithmicColorRamp colorRamp = new AlgorithmicColorRamp() as
IAlgorithmicColorRamp;
colorRamp.Size = 10;
colorRamp.FromColor = pFromColor;
colorRamp.ToColor = pToColor;
bool createColorRamp;
colorRamp.CreateRamp(out createColorRamp);
IFillSymbol fillSymbol = new SimpleFillSymbol() as IFillSymbol;
for (int i = 0; i < pRClassRend.ClassCount; i++)
{
fillSymbol.Color = colorRamp.get_Color(i);
pRClassRend.set_Symbol(i, fillSymbol as ISymbol);
pRClassRend.set_Label(i,
pRClassRend.get_Break(i).ToString("0.00"));
}
pRasterLayer.Renderer = pRRend;
IActiveView activeview = this.axMapControl1.ActiveView;
activeview.ContentsChanged();
//刷新窗口
activeview.PartialRefresh(esriViewDrawPhase.esriViewGeography, null,
null);
}
public IRasterLayer funColorForRaster(IRasterLayer pRasterLayer)
{
IRasterClassifyColorRampRenderer pRClassRend = new RasterClassifyColorRampRenderer() as IRasterClassifyColorRampRenderer;
IRasterRenderer pRRend = pRClassRend as IRasterRenderer;
IRaster pRaster = pRasterLayer.Raster;
IRasterBandCollection pRBandCol = pRaster as IRasterBandCollection;
IRasterBand pRBand = pRBandCol.Item(0);
if (pRBand.Histogram == null)
{
pRBand.ComputeStatsAndHist();
}
pRRend.Raster = pRaster;
pRClassRend.ClassCount = 10;
pRRend.Update();
IRgbColor pFromColor = new RgbColor() as IRgbColor;
pFromColor.Red = 255;
pFromColor.Green = 0;
pFromColor.Blue = 0;
IRgbColor pToColor = new RgbColor() as IRgbColor;
pToColor.Red = 0;
pToColor.Green = 0;
pToColor.Blue = 255;
IAlgorithmicColorRamp colorRamp = new AlgorithmicColorRamp() as IAlgorithmicColorRamp;
colorRamp.Size = 10;
colorRamp.FromColor = pFromColor;
colorRamp.ToColor = pToColor;
//ESRI.ArcGIS.Display.IMultiPartColorRamp colorRamp = new MultiPartColorRamp() as IMultiPartColorRamp;
comboBox1.Items.Add(colorRamp);
bool createColorRamp;
colorRamp.CreateRamp(out createColorRamp);
IFillSymbol fillSymbol = new SimpleFillSymbol() as IFillSymbol;
for (int i = 0; i < pRClassRend.ClassCount; i++)
{
fillSymbol.Color = colorRamp.get_Color(i);
pRClassRend.set_Symbol(i, fillSymbol as ISymbol);
pRClassRend.set_Label(i, pRClassRend.get_Break(i).ToString("0.00"));
}
pRasterLayer.Renderer = pRRend;
return(pRasterLayer);
}