public RGB GetRGB()
{
RGB rgb = CalculateToRGB();
return(rgb);
}
private RGB CalculateToRGB()
{
float hue, saturation, brightness;
hue = _hue;
saturation = _saturation;
brightness = _brightness;
if (saturation == 0)
{
int r = (int)(brightness * 255);
return(new RGB(r, r, r));
}
float fMax, fMid, fMin;
int iSextant, iMax, iMid, iMin;
if (0.5 < brightness)
{
fMax = brightness - (brightness * saturation) + saturation;
fMin = brightness + (brightness * saturation) - saturation;
}
else
{
fMax = brightness + (brightness * saturation);
fMin = brightness - (brightness * saturation);
}
iSextant = (int)Math.Floor(hue / 60f);
if (300f <= hue)
{
hue -= 360f;
}
hue /= 60f;
hue -= 2f * (float)Math.Floor(((iSextant + 1f) % 6f) / 2f);
if (0 == iSextant % 2)
{
fMid = (hue * (fMax - fMin)) + fMin;
}
else
{
fMid = fMin - (hue * (fMax - fMin));
}
iMax = Convert.ToInt32(fMax * 255);
iMid = Convert.ToInt32(fMid * 255);
iMin = Convert.ToInt32(fMin * 255);
RGB rgb;
switch (iSextant)
{
case 1:
rgb = new RGB(iMid, iMax, iMin); break;
case 2:
rgb = new RGB(iMin, iMax, iMid); break;
case 3:
rgb = new RGB(iMin, iMid, iMax); break;
case 4:
rgb = new RGB(iMid, iMin, iMax); break;
case 5:
rgb = new RGB(iMax, iMin, iMid); break;
default:
rgb = new RGB(iMax, iMid, iMin); break;
}
return(rgb);
}
