/// <summary>
/// Creates a true color presentation.
/// </summary>
/// <param name="colorSpace">The color space.</param>
/// <returns>A true color raster representing the specified color space.</returns>
/// <exception cref="System.ArgumentException">The specified color space is not supported.</exception>
public static RasterPresentation CreateTrueColorPresentation(RasterColorSpace colorSpace)
{
RasterColorSpaceBand[] bands;
switch (colorSpace)
{
case RasterColorSpace.CIELab:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Lightness, RasterColorSpaceBand.A, RasterColorSpaceBand.B };
break;
case RasterColorSpace.CMYK:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Cyan, RasterColorSpaceBand.Magenta, RasterColorSpaceBand.Yellow, RasterColorSpaceBand.Black };
break;
case RasterColorSpace.HSL:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Hue, RasterColorSpaceBand.Saturation, RasterColorSpaceBand.Lightness };
break;
case RasterColorSpace.HSV:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Hue, RasterColorSpaceBand.Saturation, RasterColorSpaceBand.Value };
break;
case RasterColorSpace.RGB:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Red, RasterColorSpaceBand.Green, RasterColorSpaceBand.Blue };
break;
case RasterColorSpace.YCbCr:
bands = new RasterColorSpaceBand[] { RasterColorSpaceBand.Luma, RasterColorSpaceBand.BlueDifferenceChroma, RasterColorSpaceBand.RedDifferenceChroma };
break;
default:
throw new ArgumentException("The specified color space is not supported.", "colorSpace");
}
return(new RasterPresentation(RasterPresentationModel.TrueColor, colorSpace, bands));
}
/// <summary>
/// Creates a true color presentation.
/// </summary>
/// <param name="indexOfRedBand">The zero based index of the red band.</param>
/// <param name="indexOfGreenBand">The zero based index of the green band.</param>
/// <param name="indexOfBlueBand">The zero based index of the blue band.</param>
/// <returns>A true color raster presentation using RGB color space with the specified band order.</returns>
/// <exception cref="System.ArgumentOutOfRangeException">
/// The index of the red band is less than 0.
/// or
/// The index of the green band is less than 0.
/// or
/// The index of the blue band is less than 0.
/// </exception>
/// <exception cref="System.ArgumentException">
/// The red and green bands are specified for the same index.
/// or
/// The red and blue bands are specified for the same index.
/// or
/// The green and blue bands are specified for the same index.
/// </exception>
public static RasterPresentation CreateTrueColorPresentation(Int32 indexOfRedBand, Int32 indexOfGreenBand, Int32 indexOfBlueBand)
{
if (indexOfRedBand < 0)
{
throw new ArgumentOutOfRangeException("indexOfRedBand", "The index of the red band is less than 0.");
}
if (indexOfGreenBand < 0)
{
throw new ArgumentOutOfRangeException("indexOfGreenBand", "The index of the green band is less than 0.");
}
if (indexOfBlueBand < 0)
{
throw new ArgumentOutOfRangeException("indexOfBlueBand", "The index of the blue band is less than 0.");
}
if (indexOfGreenBand == indexOfRedBand)
{
throw new ArgumentException("The red and green bands are specified for the same index.", "indexOfGreenBand");
}
if (indexOfBlueBand == indexOfRedBand)
{
throw new ArgumentException("The red and blue bands are specified for the same index.", "indexOfBlueBand");
}
if (indexOfBlueBand == indexOfGreenBand)
{
throw new ArgumentException("The green and blue bands are specified for the same index.", "indexOfBlueBand");
}
RasterColorSpaceBand[] bands = new RasterColorSpaceBand[Calculator.Max(indexOfRedBand, indexOfGreenBand, indexOfBlueBand) + 1];
bands[indexOfRedBand] = RasterColorSpaceBand.Red;
bands[indexOfGreenBand] = RasterColorSpaceBand.Green;
bands[indexOfBlueBand] = RasterColorSpaceBand.Blue;
return(new RasterPresentation(RasterPresentationModel.TrueColor, RasterColorSpace.RGB, bands));
}
