Converting RGB to HSB Colors

Question

I am trying to convert a HSB Color to RGB. The way I am doing that is

System.Windows.Media.Color winColor = value;
System.Drawing.Color drawColor = System.D         


        

Answer 1

This works...modified from Java source code. The other answer is still HSL, This really is HSB to RGB (actually it's HSB/HSV to System.Windows.Media.Color as my return type)

    public static Color HSBtoRGB(float hue, float saturation, float brightness)
    {
        int r = 0, g = 0, b = 0;
        if (saturation == 0)
        {
            r = g = b = (int)(brightness * 255.0f + 0.5f);
        }
        else
        {
            float h = (hue - (float)Math.Floor(hue)) * 6.0f;
            float f = h - (float)Math.Floor(h);
            float p = brightness * (1.0f - saturation);
            float q = brightness * (1.0f - saturation * f);
            float t = brightness * (1.0f - (saturation * (1.0f - f)));
            switch ((int)h)
            {
                case 0:
                    r = (int)(brightness * 255.0f + 0.5f);
                    g = (int)(t * 255.0f + 0.5f);
                    b = (int)(p * 255.0f + 0.5f);
                    break;
                case 1:
                    r = (int)(q * 255.0f + 0.5f);
                    g = (int)(brightness * 255.0f + 0.5f);
                    b = (int)(p * 255.0f + 0.5f);
                    break;
                case 2:
                    r = (int)(p * 255.0f + 0.5f);
                    g = (int)(brightness * 255.0f + 0.5f);
                    b = (int)(t * 255.0f + 0.5f);
                    break;
                case 3:
                    r = (int)(p * 255.0f + 0.5f);
                    g = (int)(q * 255.0f + 0.5f);
                    b = (int)(brightness * 255.0f + 0.5f);
                    break;
                case 4:
                    r = (int)(t * 255.0f + 0.5f);
                    g = (int)(p * 255.0f + 0.5f);
                    b = (int)(brightness * 255.0f + 0.5f);
                    break;
                case 5:
                    r = (int)(brightness * 255.0f + 0.5f);
                    g = (int)(p * 255.0f + 0.5f);
                    b = (int)(q * 255.0f + 0.5f);
                    break;
            }
        }
        return Color.FromArgb(Convert.ToByte(255), Convert.ToByte(r), Convert.ToByte(g), Convert.ToByte(b));
    }