/// <summary>
/// Rotates the polygon by the given radian angle around the Origin.
/// </summary>
/// <param name="Origin">Coordinate the polygon gets rotated around.</param>
/// <param name="radAngle">Rotation angle in radian.</param>
public override void Rotate(Coordinate Origin, Double radAngle)
{
_shell.Rotate(Origin, radAngle);
foreach (var h in Holes)
{
h.Rotate(Origin, radAngle);
}
}