RgbaBytes(RgbaDoubles c, double a_)
{
_r = ((byte)PictorBasics.Uround (c._r * (double)BaseMask));
_g = ((byte)PictorBasics.Uround (c._g * (double)BaseMask));
_b = ((byte)PictorBasics.Uround (c._b * (double)BaseMask));
_a = ((byte)PictorBasics.Uround (a_ * (double)BaseMask));
}
/// <summary>
///
/// </summary>
/// <param name="wl">
/// A <see cref="System.Double"/>
/// </param>
/// <param name="gamma">
/// A <see cref="System.Double"/>
/// </param>
/// <returns>
/// A <see cref="RgbaDoubles"/>
/// </returns>
public static RgbaDoubles FromWavelength(double wl, double gamma)
{
RgbaDoubles t = new RgbaDoubles (0.0, 0.0, 0.0);
if (wl >= 380.0 && wl <= 440.0) {
t._r = -1.0 * (wl - 440.0) / (440.0 - 380.0);
t._b = 1.0;
} else if (wl >= 440.0 && wl <= 490.0) {
t._g = (wl - 440.0) / (490.0 - 440.0);
t._b = 1.0;
} else if (wl >= 490.0 && wl <= 510.0) {
t._g = 1.0;
t._b = -1.0 * (wl - 510.0) / (510.0 - 490.0);
} else if (wl >= 510.0 && wl <= 580.0) {
t._r = (wl - 510.0) / (580.0 - 510.0);
t._g = 1.0;
} else if (wl >= 580.0 && wl <= 645.0) {
t._r = 1.0;
t._g = -1.0 * (wl - 645.0) / (645.0 - 580.0);
} else if (wl >= 645.0 && wl <= 780.0) {
t._r = 1.0;
}
double s = 1.0;
if (wl > 700.0)
s = 0.3 + 0.7 * (780.0 - wl) / (780.0 - 700.0); else if (wl < 420.0)
s = 0.3 + 0.7 * (wl - 380.0) / (420.0 - 380.0);
t._r = Math.Pow (t._r * s, gamma);
t._g = Math.Pow (t._g * s, gamma);
t._b = Math.Pow (t._b * s, gamma);
return t;
}
/// <summary>
///
/// </summary>
/// <param name="color">
/// A <see cref="RgbaDoubles"/>
/// </param>
public RgbaDoubles(RgbaDoubles color)
: this(color, 1)
{
}
/// <summary>
///
/// </summary>
/// <param name="color">
/// A <see cref="RgbaDoubles"/>
/// </param>
/// <param name="a">
/// A <see cref="System.Double"/>
/// </param>
public RgbaDoubles(RgbaDoubles color, double a)
: this(color._r, color._g, color._b, color._a)
{
}
