public static List <Colour> getTwoComplementaryColours(Colour colour, double angle)
{
HSL hsl = colour.getHSL();
double hVal = hsl.H + angle;
hVal = hVal >= 360 ? hVal - 360 : hVal;
HSL positiveHSL = new HSL()
{
H = hVal, S = hsl.S, L = hsl.L
};
double hVal1 = hsl.H - angle;
hVal1 = hVal1 <= 0 ? hVal1 + 360 : hVal1;
HSL negativeHSL = new HSL()
{
H = hVal1, S = hsl.S, L = hsl.L
};
Colour c0 = Colour.HslToRgb(positiveHSL);
Colour c1 = Colour.HslToRgb(negativeHSL);
return(new List <Colour>()
{
c0, c1
});
}
/// <summary>
/// matches the colour passed as an argument with the closest one contained in the list
/// </summary>
/// <param name="colour"></param>
/// <returns></returns>
public ColourRangeVo getColorMatch(Colour colour)
{
ColourRangeVo col = new ColourRangeVo();
HSL hsl = colour.getHSL();
double r = colour.R;
double g = colour.G;
double b = colour.B;
double h = hsl.H;
double s = hsl.S;
double l = hsl.L;
double ndf = 0;
double distance = 255;
ColourRangeVo tempColour = null;
for (int i = 0; i < _colourList.Count; i++)
{
if (colour.getIsColourMatch(_colourList[i].colour))
{
col.colour = _colourList[i].colour;
col.match = true;
col.name = _colourList[i].name;
return(col);
}
double hVal = 0.5 * Math.Pow((double)_colourList[i].hsl.H - (double)h, 2);
double sVal = 0.5 * Math.Pow((double)(_colourList[i].hsl.S * 100) - (double)(s * 100), 2);
double lVal = Math.Pow((double)(_colourList[i].hsl.L * 100) - (double)(l * 100), 2);
ndf = hVal + sVal + lVal;
ndf = Math.Sqrt(ndf);
if (ndf < distance)
{
distance = ndf;
tempColour = _colourList[i];
}
}
if (tempColour == null)
{
col.colour = new Colour();
col.match = false;
col.name = "Invalid Color";
return(col);
}
else
{
col.colour = tempColour.colour;
col.match = true;
col.name = tempColour.name;
return(col);
}
}
/// <summary>
/// matches the colour passed as an argument with the closest one contained in the list
/// </summary>
/// <param name="colour"></param>
/// <returns></returns>
public ColourRangeVo getColorMatch( Colour colour )
{
ColourRangeVo col = new ColourRangeVo();
HSL hsl = colour.getHSL();
double r = colour.R;
double g = colour.G;
double b = colour.B;
double h = hsl.H;
double s = hsl.S;
double l = hsl.L;
double ndf = 0;
double distance = 255;
ColourRangeVo tempColour = null;
for (int i = 0; i < _colourList.Count; i++)
{
if (colour.getIsColourMatch(_colourList[i].colour))
{
col.colour = _colourList[i].colour;
col.match = true;
col.name = _colourList[i].name;
return col;
}
double hVal = 0.5 * Math.Pow((double)_colourList[i].hsl.H - (double)h, 2);
double sVal = 0.5 * Math.Pow((double)(_colourList[i].hsl.S*100) - (double)(s*100), 2);
double lVal = Math.Pow((double)(_colourList[i].hsl.L*100) - (double)(l*100), 2);
ndf = hVal + sVal + lVal;
ndf = Math.Sqrt(ndf);
if (ndf < distance)
{
distance = ndf;
tempColour = _colourList[i];
}
}
if (tempColour==null)
{
col.colour = new Colour();
col.match = false;
col.name = "Invalid Color";
return col;
}
else
{
col.colour = tempColour.colour;
col.match = true;
col.name = tempColour.name;
return col;
}
}
/// <summary>
/// http://www.easyrgb.com/index.php?X=WEEL
/// Monochromatic
/// Colors from the same family on the wheel. This will include lighter, darker and differently saturated versions of the color.
/// </summary>
/// <param name="colour"></param>
/// <returns></returns>
public static Colour getMonochromatic(Colour colour, double brightness)
{
HSL hsl = colour.getHSL();
double lVal = hsl.L + brightness;
lVal = (lVal > 1 ? 1 : (lVal < 0 ? 0 : lVal));
HSL newHSL = new HSL()
{
H = hsl.H, S = hsl.S, L = lVal
};
return(Colour.HslToRgb(newHSL));
}
/// <summary>
/// http://www.easyrgb.com/index.php?X=WEEL
/// Complement
/// This is the color opposite on the color wheel.
/// H° + 180°
/// </summary>
/// <param name="colour"></param>
/// <returns></returns>
public static Colour getComplement(Colour colour, double angle)
{
HSL hsl = colour.getHSL();
double hVal = hsl.H + angle;
hVal = hVal >= 360 ? hVal - 360 : hVal;
HSL positiveHSL = new HSL()
{
H = hVal, S = hsl.S, L = hsl.L
};
return(Colour.HslToRgb(positiveHSL));
}