public Point3D?GetCentroid() { return(Polygon3D.GetCentroid((IList <Point3D>) this)); }
public Point3D?GetCentroid(out Plane3D?plane) { return(Polygon3D.GetCentroid((IList <Point3D>) this, out plane)); }
public static Point3D?GetCentroid(IList <Point3D> polygon) { Plane3D?plane; return(Polygon3D.GetCentroid(polygon, out plane)); }