private static Color? GetColor(double main, double x, double y)
{
ColorVector color = new ColorVector(x, main, y);
color.ConvertXyzToLinearSRgb();
if (color.IsCanonical())
{
color.ConvertLinearSRgbToSRgb();
return color.ToColor();
}
else
{
return null;
}
}
private static Color? GetColor(double saturation, double hue, double bigY)
{
double angle = 2.0 * Math.PI * hue;
double scale = bigY / (double)WhitePoints.D65Y;
double d65BigX = (double)WhitePoints.D65X * scale;
double d65BigZ = (double)WhitePoints.D65Z * scale;
ColorVector color = new ColorVector(d65BigX + saturation * Math.Cos(angle), bigY, d65BigZ + saturation * Math.Sin(angle));
color.ConvertXyzToLinearSRgb();
if (color.IsCanonical())
{
color.ConvertLinearSRgbToSRgb();
return color.ToColor();
}
else
{
return null;
}
}
private static void Generate(IReadOnlyList<ColorVector> colors, double scaleY)
{
BitmapGenerator.Generate($@"E:\Rainbows\{scaleY:0.0000}", "rainbow-{0:0.000}.png", 101, colors.Count, 16, (double main, int x, int y) =>
{
main = 0.14 + main / 100;
ColorVector color = colors[x];
color.Component1 *= scaleY;
color.Component2 *= scaleY;
color.Component3 *= scaleY;
ColorVector gray = new ColorVector((double)WhitePoints.D65X, (double)WhitePoints.D65Y, color.Component2);
gray.ConvertXyyToXyz();
double offsetX = color.Component1 - gray.Component1;
double offsetZ = color.Component3 - gray.Component3;
color.Component1 = gray.Component1 + main * offsetX;
color.Component3 = gray.Component3 + main * offsetZ;
color.ConvertXyzToLinearSRgb();
if (color.IsCanonical())
{
color.ConvertLinearSRgbToSRgb();
return color.ToColor();
}
else
{
return null;
}
});
}
