/// <summary>
/// Creates a new ring which is the inverse of this ring.
/// </summary>
/// <returns>The inverse of this ring.</returns>
/// <remarks>
/// The inverse function will create a hole from a fill or a fill from a hole.
/// If the hold flag is not set the point winding order will be reversed.
/// </remarks>
public Ring2 GetInverse()
{
Contract.Ensures(Contract.Result <Ring2>() != null);
if (Hole.HasValue)
{
return(new Ring2(this.Reverse(), !Hole.GetValueOrDefault()));
}
return(new Ring2(this.Reverse()));
}
