public static bool AddWatermarkDataToMD(string MDWorkspaceFolder, string MDName, string watermarkImagePath,
double blendPercentage, esriWatermarkLocation watermarklocation, bool clearFunctions)
{
try
{
// Open MD
Type factoryType = Type.GetTypeFromProgID("esriDataSourcesGDB.FileGDBWorkspaceFactory");
IWorkspaceFactory mdWorkspaceFactory = (IWorkspaceFactory)Activator.CreateInstance(factoryType);
IWorkspace mdWorkspace = mdWorkspaceFactory.OpenFromFile(MDWorkspaceFolder, 0);
IRasterWorkspaceEx workspaceEx = (IRasterWorkspaceEx)(mdWorkspace);
IMosaicDataset mosaicDataset = (IMosaicDataset)workspaceEx.OpenRasterDataset(
MDName);
if (clearFunctions) // Clear functions already added to MD.
{
mosaicDataset.ClearFunction();
}
// Create Watermark Function
IRasterFunction rasterFunction = new CustomFunction.WatermarkFunction();
// Create the Watermark Function Arguments object
IWatermarkFunctionArguments rasterFunctionArguments =
new WatermarkFunctionArguments();
// Set the WatermarkImagePath
rasterFunctionArguments.WatermarkImagePath =
watermarkImagePath;
// the blending percentage,
rasterFunctionArguments.BlendPercentage = blendPercentage;
// and the watermark location.
rasterFunctionArguments.WatermarkLocation = watermarklocation;
// Add function to MD.
// This function takes the name of the property corresponding to the Raster
// property of the Arguments object (in this case is it called Raster itself:
// rasterFunctionArguments.Raster) as its third argument.
mosaicDataset.ApplyFunction(rasterFunction, rasterFunctionArguments, "Raster");
Console.WriteLine("Added Watermark to MD: " + MDName + ".");
Console.WriteLine("Success.");
return(true);
}
catch (Exception exc)
{
Console.WriteLine("Exception Caught while adding watermark to MD: " + exc.Message);
Console.WriteLine("Failed.");
return(false);
}
}
