public xyYColor(xyChromaticityCoordinates chromaticity, double Y)
{
if (chromaticity == null)
throw new ArgumentNullException("chromaticity");
Chromaticity = chromaticity;
Luminance = Y;
}
public xyYColor(xyChromaticityCoordinates chromaticity, double Y)
{
if (chromaticity == null)
{
throw new ArgumentNullException("chromaticity");
}
Chromaticity = chromaticity;
Luminance = Y;
}
public double GetCCTOfChromaticity(xyChromaticityCoordinates chromaticity)
{
// approximation described here: http://en.wikipedia.org/wiki/Color_temperature#Approximation
const double xe = 0.3366;
const double ye = 0.1735;
const double A0 = -949.86315;
const double A1 = 6253.80338;
const double t1 = 0.92159;
const double A2 = 28.70599;
const double t2 = 0.20039;
const double A3 = 0.00004;
const double t3 = 0.07125;
double n = (chromaticity.x - xe) / (chromaticity.y - ye);
double cct = A0 + A1 * Math.Exp(-n / t1) + A2 * Math.Exp(-n / t2) + A3 * Math.Exp(-n / t3);
return cct;
}
public double GetCCTOfChromaticity(xyChromaticityCoordinates chromaticity)
{
// approximation described here: http://en.wikipedia.org/wiki/Color_temperature#Approximation
const double xe = 0.3366;
const double ye = 0.1735;
const double A0 = -949.86315;
const double A1 = 6253.80338;
const double t1 = 0.92159;
const double A2 = 28.70599;
const double t2 = 0.20039;
const double A3 = 0.00004;
const double t3 = 0.07125;
double n = (chromaticity.x - xe) / (chromaticity.y - ye);
double cct = A0 + A1 * Math.Exp(-n / t1) + A2 * Math.Exp(-n / t2) + A3 * Math.Exp(-n / t3);
return(cct);
}
/// <inheritdoc cref="object" /> public bool Equals(xyChromaticityCoordinates other) => x.Equals(other.x) && y.Equals(other.y);
/// <param name="chromaticity">Chromaticity coordinates (x and y together)</param>
/// <param name="Y">Y (usually from 0 to 1)</param>
public xyYColor(xyChromaticityCoordinates chromaticity, double Y)
{
Chromaticity = chromaticity;
Luminance = Y;
}
public bool Equals(xyChromaticityCoordinates other)
{
return _x.Equals(other._x) && _y.Equals(other._y);
}
public bool Equals(xyChromaticityCoordinates other)
{
return(_x.Equals(other._x) && _y.Equals(other._y));
}