public static string ApplyMLClassifyFunction(IImageServer imageServer, IRaster pRaster, string signaturfile)
{
//Define a function.
IRasterFunction hillshadeFunction = new MLClassifyFunctionClass();
IRasterFunctionArguments functionArgument = new MLClassifyFunctionArgumentsClass();
functionArgument.PutValue("Raster", pRaster);
functionArgument.PutValue("SignatureFile", signaturfile);
//Attach the function to a rendering rule.
IRenderingRule renderRule = new RenderingRuleClass();
renderRule.Function = hillshadeFunction;
renderRule.Arguments = functionArgument;
renderRule.VariableName = "DEM";
//Define the image description.
IGeoImageDescription geoImageDesc = new GeoImageDescriptionClass();
geoImageDesc.Compression = "LZ77";
geoImageDesc.Extent = imageServer.ServiceInfo.Extent;
geoImageDesc.Width = 800;
geoImageDesc.Height = 600;
geoImageDesc.Interpolation = rstResamplingTypes.RSP_BilinearInterpolation;
IGeoImageDescription2 geoImageDesc2 = (IGeoImageDescription2)geoImageDesc;
geoImageDesc2.RenderingRule = renderRule;
//Define the return image type.
IImageType imgType = new ImageTypeClass();
imgType.Format = esriImageFormat.esriImagePNG;
imgType.ReturnType = esriImageReturnType.esriImageReturnURL;
//Export the image.
IImageResult imgResult = imageServer.ExportImage(geoImageDesc2, imgType);
return imgResult.URL;
}
public static string GetAndApplyColormap(IImageServer imageServer)
{
//Get the color map.
IImageServiceInfo3 isInfo = imageServer.ServiceInfo as IImageServiceInfo3;
IRasterColormap colormap = isInfo.Colormap;
//Create the color map function using the color map.
IRenderingRule rule = new RenderingRuleClass();
ColormapFunction colormapfunction = new ColormapFunctionClass();
IColormapFunctionArguments colormapargs = new ColormapFunctionArgumentsClass();
colormapargs.Colormap = colormap;
rule.Function = colormapfunction;
rule.Arguments = (IRasterFunctionArguments)colormapargs;
rule.VariableName = "Raster"; //Define export image request.
IGeoImageDescription2 geoImageDesc = new GeoImageDescriptionClass();
geoImageDesc.Width = 800;
geoImageDesc.Height = 600;
geoImageDesc.Extent = isInfo.Extent;
geoImageDesc.RenderingRule = rule;
//Export an image using service's color map.
IImageType imageType = new ImageTypeClass();
imageType.Format = esriImageFormat.esriImageJPGPNG;
imageType.ReturnType = esriImageReturnType.esriImageReturnURL;
IMapImage mapImage = ((IImageServer2)imageServer).ExportMapImage(geoImageDesc, imageType);
return mapImage.URL;
}
