Default constructor. Constructs an open polyline with the type initialized to SimplePoly.

Public Sub New()
Public Sub New(
    type As Autodesk.AutoCAD.DatabaseServices.Poly3dType, 
    vertices As Point3dCollection, 
    closed As [MarshalAs(UnmanagedType.U1)] bool
)

public Polyline3d();
public Polyline3d(
    Autodesk.AutoCAD.DatabaseServices.Poly3dType type, 
    Point3dCollection vertices, 
    [MarshalAs(UnmanagedType.U1)] bool closed
);