/// <summary>
/// 转换颜色
/// </summary>
/// <param name="hsb">HSB对象</param>
/// <returns></returns>
public static Color ToColor(HSB hsb)
{
int Mid;
int Max = ColorHelper.Round(hsb.Brightness * 255);
int Min = ColorHelper.Round((1.0 - hsb.Saturation) * (hsb.Brightness / 1.0) * 255);
double q = (double)(Max - Min) / 255;
if (hsb.Hue >= 0 && hsb.Hue <= (double)1 / 6)
{
Mid = ColorHelper.Round(((hsb.Hue - 0) * q) * 1530 + Min);
return(Color.FromArgb(Max, Mid, Min));
}
if (hsb.Hue <= (double)1 / 3)
{
Mid = ColorHelper.Round(-((hsb.Hue - (double)1 / 6) * q) * 1530 + Max);
return(Color.FromArgb(Mid, Max, Min));
}
if (hsb.Hue <= 0.5)
{
Mid = ColorHelper.Round(((hsb.Hue - (double)1 / 3) * q) * 1530 + Min);
return(Color.FromArgb(Min, Max, Mid));
}
if (hsb.Hue <= (double)2 / 3)
{
Mid = ColorHelper.Round(-((hsb.Hue - 0.5) * q) * 1530 + Max);
return(Color.FromArgb(Min, Mid, Max));
}
if (hsb.Hue <= (double)5 / 6)
{
Mid = ColorHelper.Round(((hsb.Hue - (double)2 / 3) * q) * 1530 + Min);
return(Color.FromArgb(Mid, Min, Max));
}
if (hsb.Hue <= 1.0)
{
Mid = ColorHelper.Round(-((hsb.Hue - (double)5 / 6) * q) * 1530 + Max);
return(Color.FromArgb(Max, Min, Mid));
}
return(Color.FromArgb(0, 0, 0));
}
public void CMYKUpdate()
{
this.RGB = this.CMYK;
this.HSB = this.CMYK;
}
public void RGBUpdate()
{
this.HSB = this.RGB;
this.CMYK = this.RGB;
}
/// <summary>
/// 构造函数
/// </summary>
/// <param name="color"></param>
public MyColor(Color color)
{
this.RGB = color;
this.HSB = color;
this.CMYK = color;
}
public static HSB ToHSB(Color color)
{
HSB hsb = new HSB();
int Max, Min;
if (color.R > color.G)
{
Max = color.R; Min = color.G;
}
else
{
Max = color.G; Min = color.R;
}
if (color.B > Max)
{
Max = color.B;
}
else if (color.B < Min)
{
Min = color.B;
}
int Diff = Max - Min;
hsb.Brightness = (double)Max / 255;
if (Max == 0)
{
hsb.Saturation = 0;
}
else
{
hsb.Saturation = (double)Diff / Max;
}
double q;
if (Diff == 0)
{
q = 0;
}
else
{
q = (double)60 / Diff;
}
if (Max == color.R)
{
if (color.G < color.B)
{
hsb.Hue = (360 + q * (color.G - color.B)) / 360;
}
else
{
hsb.Hue = q * (color.G - color.B) / 360;
}
}
else if (Max == color.G)
{
hsb.Hue = (120 + q * (color.B - color.R)) / 360;
}
else if (Max == color.B)
{
hsb.Hue = (240 + q * (color.R - color.G)) / 360;
}
else
{
hsb.Hue = 0.0;
}
return(hsb);
}