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static private ScaleToQuantum ( double value ) : |
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| value | double | |
| Результат | ||
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateColor()
{
double c;
double h = Hue * 360.0;
if (Lightness <= 0.5)
{
c = 2.0 * Lightness * Saturation;
}
else
{
c = (2.0 - (2.0 * Lightness)) * Saturation;
}
double min = Lightness - (0.5 * c);
h -= 360.0 * Math.Floor(h / 360.0);
h /= 60.0;
double x = c * (1.0 - Math.Abs(h - (2.0 * Math.Floor(h / 2.0)) - 1.0));
switch ((int)Math.Floor(h))
{
case 0:
default:
Color.R = Quantum.ScaleToQuantum(min + c);
Color.G = Quantum.ScaleToQuantum(min + x);
Color.B = Quantum.ScaleToQuantum(min);
break;
case 1:
Color.R = Quantum.ScaleToQuantum(min + x);
Color.G = Quantum.ScaleToQuantum(min + c);
Color.B = Quantum.ScaleToQuantum(min);
break;
case 2:
Color.R = Quantum.ScaleToQuantum(min);
Color.G = Quantum.ScaleToQuantum(min + c);
Color.B = Quantum.ScaleToQuantum(min + x);
break;
case 3:
Color.R = Quantum.ScaleToQuantum(min);
Color.G = Quantum.ScaleToQuantum(min + x);
Color.B = Quantum.ScaleToQuantum(min + c);
break;
case 4:
Color.R = Quantum.ScaleToQuantum(min + x);
Color.G = Quantum.ScaleToQuantum(min);
Color.B = Quantum.ScaleToQuantum(min + c);
break;
case 5:
Color.R = Quantum.ScaleToQuantum(min + c);
Color.G = Quantum.ScaleToQuantum(min);
Color.B = Quantum.ScaleToQuantum(min + x);
break;
}
}
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateColor()
{
QuantumType gray = Quantum.ScaleToQuantum(_shade);
Color.R = gray;
Color.G = gray;
Color.B = gray;
}
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateValue()
{
QuantumType gray = Quantum.ScaleToQuantum(Shade);
Value.R = gray;
Value.G = gray;
Value.B = gray;
}
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateColor()
{
if (Math.Abs(Saturation) < double.Epsilon)
{
Color.R = Color.G = Color.B = Quantum.ScaleToQuantum(Value);
return;
}
double h = 6.0 * (Hue - Math.Floor(Hue));
double f = h - Math.Floor(h);
double p = Value * (1.0 - Saturation);
double q = Value * (1.0 - (Saturation * f));
double t = Value * (1.0 - (Saturation * (1.0 - f)));
switch ((int)h)
{
case 0:
default:
Color.R = Quantum.ScaleToQuantum(Value);
Color.G = Quantum.ScaleToQuantum(t);
Color.B = Quantum.ScaleToQuantum(p);
break;
case 1:
Color.R = Quantum.ScaleToQuantum(q);
Color.G = Quantum.ScaleToQuantum(Value);
Color.B = Quantum.ScaleToQuantum(p);
break;
case 2:
Color.R = Quantum.ScaleToQuantum(p);
Color.G = Quantum.ScaleToQuantum(Value);
Color.B = Quantum.ScaleToQuantum(t);
break;
case 3:
Color.R = Quantum.ScaleToQuantum(p);
Color.G = Quantum.ScaleToQuantum(q);
Color.B = Quantum.ScaleToQuantum(Value);
break;
case 4:
Color.R = Quantum.ScaleToQuantum(t);
Color.G = Quantum.ScaleToQuantum(p);
Color.B = Quantum.ScaleToQuantum(Value);
break;
case 5:
Color.R = Quantum.ScaleToQuantum(Value);
Color.G = Quantum.ScaleToQuantum(p);
Color.B = Quantum.ScaleToQuantum(q);
break;
}
}
/// <summary>
/// Converts the value of this instance to an equivalent Color.
/// </summary>
/// <returns>A <see cref="Color"/> instance.</returns>
public Color ToColor()
{
if (!_isCmyk)
{
return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(R), Quantum.ScaleToByte(G), Quantum.ScaleToByte(B)));
}
var r = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(R) * (Quantum.Max - K)) + K));
var g = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(G) * (Quantum.Max - K)) + K));
var b = Quantum.ScaleToQuantum(Quantum.Max - ((Quantum.ScaleToDouble(B) * (Quantum.Max - K)) + K));
return(Color.FromArgb(Quantum.ScaleToByte(A), Quantum.ScaleToByte(r), Quantum.ScaleToByte(g), Quantum.ScaleToByte(b)));
}
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateColor()
{
Color.R = Quantum.ScaleToQuantum(Y - (3.945707070708279e-05 * (U - 0.5)) + (1.1398279671717170825 * (V - 0.5)));
Color.G = Quantum.ScaleToQuantum(Y - (0.3946101641414141437 * (U - 0.5)) - (0.5805003156565656797 * (V - 0.5)));
Color.B = Quantum.ScaleToQuantum(Y + (2.0319996843434342537 * (U - 0.5)) - (4.813762626262513e-04 * (V - 0.5)));
}
private ColorGray(MagickColor color)
: base(color)
{
_shade = Quantum.ScaleToQuantum(color.R);
}
private ColorGray(IMagickColor <QuantumType> color)
: base(color)
{
_shade = Quantum.ScaleToQuantum(color.R);
}
/// <summary>
/// Updates the color value in an inherited class.
/// </summary>
protected override void UpdateValue()
{
Value.R = Quantum.ScaleToQuantum(_Y + (1.13980 * _V));
Value.G = Quantum.ScaleToQuantum(_Y - (0.39380 * _U) - (0.58050 * _V));
Value.B = Quantum.ScaleToQuantum(_Y + (2.02790 * _U));
}
