/// <summary>
/// Converts from a Argb(system) color to CYMK
/// </summary>
public static Cymk ToCymk(Color value)
{
Cymk cmyk = new Cymk();
cmyk.Alpha = value.Alpha;
double low = 1f;
cmyk.Cyan = (double)(255 - value.Red) / 255;
if (low > cmyk.Cyan)
{
low = cmyk.Cyan;
}
cmyk.Magenta = (double)(255 - value.Green) / 255;
if (low > cmyk.Magenta)
{
low = cmyk.Magenta;
}
cmyk.Yellow = (double)(255 - value.Blue) / 255;
if (low > cmyk.Yellow)
{
low = cmyk.Yellow;
}
if (low > 0.0)
{
cmyk.Black = low;
}
return(cmyk);
}
/// <summary>
/// Converts from a CYMK color to Argb (system) color
/// </summary>
public static Color ToColor(Cymk value)
{
byte red, green, blue;
red = Round(255 - (255 * value.Cyan));
green = Round(255 - (255 * value.Magenta));
blue = Round(255 - (255 * value.Yellow));
return(new Color(value.Alpha, red, green, blue));
}
/// <summary>
/// Create a new color in CYMK colorspace
/// </summary>
/// <param name="cyan">cyan component. Range: [0, 1]</param>
/// <param name="magenta">yellow component. Range: [0, 1]</param>
/// <param name="yellow">magenta component. Range: [0, 1]</param>
/// <param name="black">black component. Range: [0, 1]</param>
/// <param name="alpha">Alpha component. Range: [0, 255]</param>
public static Cymk CreateCymk(double cyan, double yellow, double magenta, double black, int alpha)
{
//range checking
//cyan
if (cyan > 1)
{
cyan = 1;
}
else if (cyan < 0)
{
cyan = 0;
}
//yellow
if (yellow > 1)
{
yellow = 1;
}
else if (yellow < 0)
{
yellow = 0;
}
//magenta
if (magenta > 1)
{
magenta = 1;
}
else if (magenta < 0)
{
magenta = 0;
}
//alpha
if (alpha > 255)
{
alpha = 255;
}
else if (alpha < 0)
{
alpha = 0;
}
Cymk result = new Cymk(cyan, yellow, magenta, black);
result.Alpha = (byte)alpha;
return(result);
}
/// <summary>
/// Converts from a Argb(system) color to CYMK
/// </summary>
public static Cymk ToCymk(Color value)
{
Cymk cmyk = new Cymk();
cmyk.Alpha = value.Alpha;
double low = 1f;
cmyk.Cyan = (double)(255 - value.Red) / 255;
if (low > cmyk.Cyan)
low = cmyk.Cyan;
cmyk.Magenta = (double)(255 - value.Green) / 255;
if (low > cmyk.Magenta)
low = cmyk.Magenta;
cmyk.Yellow = (double)(255 - value.Blue) / 255;
if (low > cmyk.Yellow)
low = cmyk.Yellow;
if (low > 0.0)
{
cmyk.Black = low;
}
return cmyk;
}
/// <summary>
/// Converts from a CYMK color to Argb (system) color
/// </summary>
public static Color ToColor(Cymk value)
{
byte red, green, blue;
red = Round(255 - (255 * value.Cyan));
green = Round(255 - (255 * value.Magenta));
blue = Round(255 - (255 * value.Yellow));
return new Color(value.Alpha, red, green, blue);
}
