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using System;
namespace Colourful.Implementation.Conversion
{
/// <summary>
/// Converts from <see cref="LuvColor" /> to <see cref="LChuvColor" />.
/// </summary>
public sealed class LuvToLChuvConverter : IColorConversion<LuvColor, LChuvColor>
{
/// <summary>
/// Default singleton instance of the converter.
/// </summary>
public static readonly LuvToLChuvConverter Default = new LuvToLChuvConverter();
/// <summary>
/// Converts from <see cref="LuvColor" /> to <see cref="LChuvColor" />.
/// </summary>
public LChuvColor Convert(in LuvColor input)
{
double L = input.L, u = input.u, v = input.v;
var C = Math.Sqrt(u * u + v * v);
var hRadians = Math.Atan2(v, u);
var hDegrees = Angle.NormalizeDegree(Angle.RadianToDegree(hRadians));
var output = new LChuvColor(L, C, hDegrees, input.WhitePoint);
return output;
}
#region Overrides
/// <inheritdoc cref="object" />
public override bool Equals(object obj) => obj is LuvToLChuvConverter;
/// <inheritdoc cref="object" />
public override int GetHashCode() => 1;
/// <inheritdoc cref="object" />
public static bool operator ==(LuvToLChuvConverter left, LuvToLChuvConverter right) => Equals(left, right);
/// <inheritdoc cref="object" />
public static bool operator !=(LuvToLChuvConverter left, LuvToLChuvConverter right) => !Equals(left, right);
#endregion
}
}
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