private void btnRasterOK_Click_1(object sender, EventArgs e)
{
try
{
IRasterStretchColorRampRenderer rasStreRen = new RasterStretchColorRampRendererClass();
IRasterRenderer rasRen = rasStreRen as IRasterRenderer;
rasRen.Raster = rasterlayer.Raster;
rasRen.Update();
rasStreRen.BandIndex = cmbBand.SelectedIndex;
pListRamp = style.pListRamp;
rasStreRen.ColorRamp = (IColorRamp)pListRamp[cmbsymRaster.SelectedIndex];
rasRen.Update();
rasterlayer.Renderer = rasStreRen as IRasterRenderer;
IRasterStretch2 stretch = rasStreRen as IRasterStretch2;
stretch.BackgroundValue = 0;
stretch.Background = true;
stretch.BackgroundColor = RasterRender.GET(255, 255, 255) as IColor;
//axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axmapcontrol.Refresh();
axtoccontrol.Update();
axmapcontrol.Extent = rasterlayer.AreaOfInterest;
}
catch (Exception ec)
{
MessageBox.Show(ec.Message);
}
}
private void btn_OkStretch_Click(object sender, EventArgs e)
{
try
{
string RasterName = cbb_RasterLayersStretch.SelectedItem.ToString();
rasterlayer = GetRasterLayer(RasterName);
IRasterStretchColorRampRenderer rasStreRen = new RasterStretchColorRampRendererClass();
IRasterRenderer rasRen = rasStreRen as IRasterRenderer;
rasRen.Raster = rasterlayer.Raster;
rasRen.Update();
rasStreRen.BandIndex = cbb_BandStretch.SelectedIndex;
pListRamp = style.pListRamp;
rasStreRen.ColorRamp = (IColorRamp)pListRamp[cbbs_ColorStretch.SelectedIndex];
rasRen.Update();
rasterlayer.Renderer = rasStreRen as IRasterRenderer;
IRasterStretch2 stretch = rasStreRen as IRasterStretch2;
stretch.BackgroundValue = 0;
stretch.Background = true;
stretch.BackgroundColor = RasterRender.GET(255, 255, 255) as IColor;
axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axtoccontrol.Update();
axmapcontrol.Extent = rasterlayer.AreaOfInterest;
this.Close();
}
catch (Exception ec)
{
MessageBox.Show(ec.Message);
}
}
public static bool LoadRasterData(string filePath, AxMapControl mapControl)
{
try
{
var factory = new RasterWorkspaceFactory();
IRasterWorkspace rasterWorkspace = factory.OpenFromFile(System.IO.Path.GetDirectoryName(filePath), 0) as IRasterWorkspace;
var fileName = System.IO.Path.GetFileName(filePath);
IRasterDataset rasterDataset = rasterWorkspace.OpenRasterDataset(fileName);
if (rasterDataset == null)
{
return(false);
}
IRasterLayer rasterLayer = new RasterLayer();
rasterLayer.CreateFromDataset(rasterDataset);
#region 影像去黑边
IRasterRGBRenderer2 rasterRGBRender = rasterLayer.Renderer as IRasterRGBRenderer2;
IRasterStretch2 pRasterStretch2 = rasterRGBRender as IRasterStretch2;
double[] value = new double[3] {
0.0, 0.0, 0.0
};
pRasterStretch2.BackgroundValue = value;
pRasterStretch2.Background = true;
#endregion
mapControl.AddLayer(rasterLayer, mapControl.LayerCount);
return(true);
}
catch
{
return(false);
}
}
private void btnRasterOK_Click(object sender, EventArgs e)
{
switch (tabControl1.SelectedIndex)
{
case 0:
try
{
IRasterStretchColorRampRenderer rasStreRen = new RasterStretchColorRampRendererClass();
IRasterRenderer rasRen = rasStreRen as IRasterRenderer;
rasRen.Raster = rasterlayer.Raster;
rasRen.Update();
rasStreRen.BandIndex = cmbBand.SelectedIndex;
pListRamp = style.pListRamp;
rasStreRen.ColorRamp = (IColorRamp)pListRamp[cmbsymRaster.SelectedIndex];
rasRen.Update();
rasterlayer.Renderer = rasStreRen as IRasterRenderer;
IRasterStretch2 stretch = rasStreRen as IRasterStretch2;
stretch.BackgroundValue = 0;
stretch.Background = true;
stretch.BackgroundColor = RasterRender.GET(255, 255, 255) as IColor;
axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axtoccontrol.Update();
axmapcontrol.Extent = rasterlayer.AreaOfInterest;
this.Close();
}
catch (Exception ec)
{
MessageBox.Show(ec.Message);
}
break;
case 1:
RasterRender render = new RasterRender();
pListRamp = style.pListRamp;
render.RasterClassify(rasterlayer, cmbClassifyMethod.SelectedValue.ToString(), Convert.ToInt32(cmbClassifyCount.SelectedValue), (IColorRamp)pListRamp[cmbSymClassify.SelectedIndex]);
axmapcontrol.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeography, null, null);
axtoccontrol.Update();
axmapcontrol.Extent = rasterlayer.AreaOfInterest;
break;
}
}
public static IRasterRenderer CreateESRIDefinedContinuousRenderer(GCDConsoleLib.Raster gRaster, int iClassCount, string sColorRampName, bool bInvert = false)
{
try
{
gRaster.ComputeStatistics();
decimal maxValue = gRaster.GetStatistics()["max"];
int iRound = GetMagnitude(maxValue);
double maxValueRounded = Math.Round((double)maxValue, Math.Abs(iRound));
RasterStretchColorRampRenderer stretchRenderer = new RasterStretchColorRampRendererClass();
IRasterRenderer rasterRenderer = (IRasterRenderer)stretchRenderer;
IRasterDataset rasterDataset = ArcMapUtilities.GetRasterDataset(gRaster);
IRaster raster = rasterDataset.CreateDefaultRaster();
rasterRenderer.Raster = raster;
IColorRamp pColorRamp = null;
IStyleGalleryItem pStyleItem = GetESRIStyleColorRamp(out pColorRamp, sColorRampName);
IRasterRendererColorRamp pRenderColorRamp = (IRasterRendererColorRamp)rasterRenderer;
pRenderColorRamp.ColorScheme = pStyleItem.Name;
IRasterStretchMinMax pStretchInfo = (IRasterStretchMinMax)stretchRenderer;
pStretchInfo.CustomStretchMin = 0;
pStretchInfo.CustomStretchMax = maxValueRounded;
pStretchInfo.UseCustomStretchMinMax = true;
stretchRenderer.LabelHigh = maxValueRounded.ToString();
stretchRenderer.LabelLow = "0.0";
if (bInvert)
{
IRasterStretch2 pStretch = (IRasterStretch2)stretchRenderer;
pStretch.Invert = true;
}
rasterRenderer.Update();
return(rasterRenderer);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}
public static IRasterRenderer CreateContinuousRenderer(Raster gRaster, IColorRamp pColorRamp, bool bInvert = false)
{
try
{
gRaster.ComputeStatistics();
Dictionary <string, decimal> stats = gRaster.GetStatistics();
double rMin = (double)stats["min"];
double rMax = (double)stats["max"];
RasterStretchColorRampRenderer stretchRenderer = new RasterStretchColorRampRenderer();
IRasterRenderer rasterRenderer = (IRasterRenderer)stretchRenderer;
IRasterDataset rasterDataset = ArcMapUtilities.GetRasterDataset(gRaster);
IRaster raster = rasterDataset.CreateDefaultRaster();
rasterRenderer.Raster = raster;
IRasterRendererColorRamp pRenderColorRamp = (IRasterRendererColorRamp)rasterRenderer;
pRenderColorRamp.ColorRamp = pColorRamp;
int iRound = GetMagnitude(rMin);
stretchRenderer.LabelHigh = Math.Round(rMax, Math.Abs(iRound)).ToString();
stretchRenderer.LabelLow = Math.Round(rMin, Math.Abs(iRound)).ToString();
if (bInvert)
{
IRasterStretch2 pStretch = (IRasterStretch2)stretchRenderer;
pStretch.Invert = true;
}
rasterRenderer.Update();
return(rasterRenderer);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
return(null);
}
}