AcDb2dPolyline(); AcDb2dPolyline( AcDb::Poly2dType type, AcGePoint3dArray& vertices, double elevation = 0, Adesk::Boolean closed = Adesk::kFalse, double defStartWidth = 0, double defEndWidth = 0, AcGeDoubleArray* bulges = nullptr, AcArray<Adesk::Int32>* vertexIdentifiers = nullptr );
Default constructor. Constructs an open polyline with linetype generation off and initializes the start and end widths to 0.0, the bulge to 0.0, the elevation to 0.0, the type to AcDb::k2dSimplePoly, the normal to (0,0,1), and the thickness to 0.0.