The Bezier curve ( ): is a edge curved object defined by its control points (Beziers polynomials). The set constitutes a (single) object edge curve (which can constitute an open or closed curve). This object contains two vertex objects and one edge object for the open case and one vertex object for the closed case. It can also be defined by a parametric parametric equation with three parameters. Since this curve is not interpolating, it does not pass through all vertex objects but only by the first and the last