Exemplo n.º 1
0
 /// <summary>
 ///
 /// </summary>
 /// <param name="c2"></param>
 /// <param name="amount"></param>
 /// <returns></returns>
 public HSLColor Interpolate(HSLColor c2, float amount)
 {
     return new HSLColor(this.Hue + ((c2.Hue - this.Hue) * amount), this.Saturation + ((c2.Saturation - this.Saturation) * amount), this.Luminance + ((c2.Luminance - this.Luminance) * amount));
 }
Exemplo n.º 2
0
        /// <summary>
        ///
        /// </summary>
        /// <param name="rr"></param>
        /// <param name="gg"></param>
        /// <param name="bb"></param>
        public static HSLColor FromRGB(int rr, int gg, int bb)
        {
            double r = (rr / 255.0);
            double g = (gg / 255.0);
            double b = (bb / 255.0);

            double min = Math.Min(Math.Min(r, g), b);
            double max = Math.Max(Math.Max(r, g), b);
            double delta = max - min;
            HSLColor hsl = new HSLColor();
            // get luminance value
            hsl.Luminance = (float)(max + min) / 2;

            if (delta == 0)
            {
                // gray color
                hsl.Hue = 0;
                hsl.Saturation = 0.0f;
            }
            else
            {
                // get saturation value
                hsl.Saturation = (float)((hsl.Luminance < 0.5) ? (delta / (max + min)) : (delta / (2 - max - min)));

                // get hue value
                double del_r = (((max - r) / 6) + (delta / 2)) / delta;
                double del_g = (((max - g) / 6) + (delta / 2)) / delta;
                double del_b = (((max - b) / 6) + (delta / 2)) / delta;
                double hue;

                if (r == max)
                    hue = del_b - del_g;
                else if (g == max)
                    hue = (1.0 / 3) + del_r - del_b;
                else
                    hue = (2.0 / 3) + del_g - del_r;

                // correct hue if needed
                if (hue < 0)
                    hue += 1;
                if (hue > 1)
                    hue -= 1;

                hsl.Hue = (int)(hue * 360);
            }
            return hsl;
        }