Hello
I'm able to load a DTED Level 0 file into a RasterDataset, color it and create a IRasterLayer from it to add into axMapControl. Here is my working code:
The result is this screenshot of axMapControl:Attachment 22980
Now, I want to create Line of Sight; between observer and a point. How can I do that? I have no idea unfortunately.
Thanks
I'm able to load a DTED Level 0 file into a RasterDataset, color it and create a IRasterLayer from it to add into axMapControl. Here is my working code:
Code:
IWorkspaceFactory wsf = new RasterWorkspaceFactoryClass();
IRasterWorkspace rasterWS = (IRasterWorkspace)wsf.OpenFromFile(@"C:\Users\ABC\Desktop\DTED_E30N40\dted\e034", 0);
rasterDS = rasterWS.OpenRasterDataset("n40.dt0");
IRasterBandCollection pRasterBandCollection = (IRasterBandCollection)rasterDS;
IEnumRasterBand pEnumRasterBand = pRasterBandCollection.Bands;
IRasterBand pRasterBand = pEnumRasterBand.Next();
pRasterBand.ComputeStatsAndHist();
IRasterStatistics pRasterStatistics = pRasterBand.Statistics;
IRgbColor pFromColor = new RgbColorClass();
pFromColor.Red = 20;
pFromColor.Green = 20;
pFromColor.Blue = 220;
IRgbColor pToColor = new RgbColorClass();
pToColor.Red = 220;
pToColor.Green = 20;
pToColor.Blue = 20;
IAlgorithmicColorRamp pAlgorithmicColorRamp = new AlgorithmicColorRampClass();
pAlgorithmicColorRamp.FromColor = pFromColor;
pAlgorithmicColorRamp.ToColor = pToColor;
pAlgorithmicColorRamp.Algorithm = esriColorRampAlgorithm.esriHSVAlgorithm;
pAlgorithmicColorRamp.Size = 255;
bool bOK;
pAlgorithmicColorRamp.CreateRamp(out bOK);
IRasterStretchColorRampRenderer pRasterStretchColorRampRenderer = new RasterStretchColorRampRendererClass();
pRasterStretchColorRampRenderer.BandIndex = 0;
pRasterStretchColorRampRenderer.LabelHigh = pRasterStatistics.Maximum.ToString();
pRasterStretchColorRampRenderer.LabelLow = pRasterStatistics.Minimum.ToString();
pRasterStretchColorRampRenderer.ColorRamp = pAlgorithmicColorRamp;
IRasterLayer rasterLayer = new RasterLayer();
rasterLayer.CreateFromDataset(rasterDS);
rasterLayer.Name = "DTED Level 0 [E34-N40]";
rasterLayer.Renderer = (IRasterRenderer)pRasterStretchColorRampRenderer;
axMapControl1.AddLayer(rasterLayer);Now, I want to create Line of Sight; between observer and a point. How can I do that? I have no idea unfortunately.
Thanks