This default constructor would typically be used as a placeholder where the curves would be specified by a subsequent call to one of the Set() functions. This constructor sets the two curves to be the infinite lines represented by the X and Y axes.

Public Sub New()
Public Sub New(
    curve1 As Curve2d, 
    curve2 As Curve2d, 
    tolerance As Autodesk.AutoCAD.Geometry.Tolerance
)
Public Sub New(
    curve1 As Curve2d, 
    curve2 As Curve2d, 
    range1 As Interval, 
    range2 As Interval, 
    tolerance As Autodesk.AutoCAD.Geometry.Tolerance
)

public CurveCurveIntersector2d();
public CurveCurveIntersector2d(
    Curve2d curve1, 
    Curve2d curve2, 
    Autodesk.AutoCAD.Geometry.Tolerance tolerance
);
public CurveCurveIntersector2d(
    Curve2d curve1, 
    Curve2d curve2, 
    Interval range1, 
    Interval range2, 
    Autodesk.AutoCAD.Geometry.Tolerance tolerance
);