/// <summary>
/// Instatiates a polygon based on one extorier ring.
/// </summary>
/// <param name="exteriorRing">Exterior ring</param>
public Polygon(LinearRing exteriorRing)
: this(exteriorRing, new Collection <LinearRing>())
{
}
/// <summary>
/// Instatiates a polygon based on one extorier ring and a collection of interior rings.
/// </summary>
/// <param name="exteriorRing">Exterior ring</param>
/// <param name="interiorRings">Interior rings</param>
public Polygon(LinearRing exteriorRing, IList <LinearRing> interiorRings)
{
_ExteriorRing = exteriorRing;
_InteriorRings = interiorRings ?? new Collection <LinearRing>();
}