PurplePen.MapDisplay.ComputeColorMatrix C# (CSharp) Method

        ColorMatrix ComputeColorMatrix()
        {
            if (mapIntensity < 0.99F) {
                float[][] colorMatrixElements = {
                           new float[] {(float)mapIntensity,  0,  0,  0, 0},
                           new float[] {0,  (float)mapIntensity,  0,  0, 0},
                           new float[] {0,  0,  (float)mapIntensity,  0, 0},
                           new float[] {0,  0,  0,  1, 0},
                           new float[] {(float) (1-mapIntensity), (float) (1-mapIntensity), (float) (1-mapIntensity), 0, 1}};
                ColorMatrix colorMatrix = new ColorMatrix(colorMatrixElements);
                return colorMatrix;
            }
            else
                return null;            // full intensity.
        }