AcDb2dVertex(); AcDb2dVertex( const AcGePoint3d& position, double bulge = 0, double startWidth = 0, double endWidth = 0, double tangent = 0, Adesk::Int32 vertexIdentifier = 0 );
Default constructor. Initializes the position to (0,0,0), the start and end widths to 0.0, the bulge to 0.0, the curve-fit tangent angle to 0.0, and the vertex type to AcDb::k2dVertex.