/// <summary>
/// Changes the intensity.
/// </summary>
/// <param name="color">The color.</param>
/// <param name="factor">The factor.</param>
/// <returns>A color with the new intensity.</returns>
public static OxyColor ChangeSaturation(this OxyColor color, double factor)
{
var hsv = color.ToHsv();
hsv[1] *= factor;
if (hsv[1] > 1.0)
{
hsv[1] = 1.0;
}
return(OxyColor.FromHsv(hsv));
}
/// <summary>
/// Changes the intensity.
/// </summary>
/// <param name="color">The color.</param>
/// <param name="factor">The factor.</param>
/// <returns>A color with the new intensity.</returns>
public static OxyColor ChangeIntensity(this OxyColor color, double factor)
{
var hsv = color.ToHsv();
hsv[2] *= factor;
if (hsv[2] > 1.0)
{
hsv[2] = 1.0;
}
return(OxyColor.FromHsv(hsv));
}
/// <summary>
/// Calculates the complementary color.
/// </summary>
/// <param name="color">The color to convert.</param>
/// <returns>The complementary color.</returns>
public static OxyColor Complementary(this OxyColor color)
{
// http://en.wikipedia.org/wiki/Complementary_Color
var hsv = color.ToHsv();
double newHue = hsv[0] - 0.5;
// clamp to [0,1]
if (newHue < 0)
{
newHue += 1.0;
}
return(OxyColor.FromHsv(newHue, hsv[1], hsv[2]));
}
