C#实现HSL颜色值转换为RGB的方法

本文实例讲述了C#实现HSL颜色值转换为RGB的方法。分享给大家供大家参考。具体实现方法如下：

//This method converts the values to RGB
public RgbColor HslToRgb(int Hue, int Saturation, int Lightness)
{
double num4 = 0.0;
double num5 = 0.0;
double num6 = 0.0;
double num = ((double)Hue) ％ 360.0;
double num2 = ((double)Saturation) / 100.0;
double num3 = ((double)Lightness) / 100.0;
if (num2 == 0.0)
{
 num4 = num3;
 num5 = num3;
 num6 = num3;
}
else
{
 double d = num / 60.0;
 int num11 = (int)Math.Floor(d);
 double num10 = d - num11;
 double num7 = num3 * (1.0 - num2);
 double num8 = num3 * (1.0 - (num2 * num10));
 double num9 = num3 * (1.0 - (num2 * (1.0 - num10)));
 switch (num11)
 {
  case 0:
   num4 = num3;
   num5 = num9;
   num6 = num7;
   break;
  case 1:
   num4 = num8;
   num5 = num3;
   num6 = num7;
   break;
  case 2:
   num4 = num7;
   num5 = num3;
   num6 = num9;
   break;
  case 3:
   num4 = num7;
   num5 = num8;
   num6 = num3;
   break;
  case 4:
   num4 = num9;
   num5 = num7;
   num6 = num3;
   break;
  case 5:
   num4 = num3;
   num5 = num7;
   num6 = num8;
   break;
 }
}
return new RgbColor((int)(num4 * 255.0), (int)(num5 * 255.0), (int)(num6 * 255.0));
}
//The structure that will hold the RGB Values
public struct RgbColor
{
public RgbColor(int r, int g, int b)
{
 red = r;
 green = g;
 blue = b;
}
public int red;
public int green;
public int blue;
}

希望本文所述对大家的C#程序设计有所帮助。