/// <summary>
/// Initializes a new instance of <see cref="T:Gu.Units.Length"/>.
/// </summary>
/// <param name="value"></param>
/// <param name="unit"><see cref="T:Gu.Units.Metres"/>.</param>
public Length(double value, LengthUnit unit)
{
this.metres = unit.ToSiUnit(value);
}
/// <summary>
/// Creates a new instance of <see cref="T:Gu.Units.Length"/>.
/// </summary>
/// <param name="value"></param>
/// <param name="unit"></param>
public static Length From(double value, LengthUnit unit)
{
return(new Length(unit.ToSiUnit(value)));
}