#include <GeomAbs_CurveType.hxx>
#include <gp_Lin2d.hxx>
#include <gp_Circ2d.hxx>
#include <gp_Elips2d.hxx>
#include <gp_Hypr2d.hxx>
#include <gp_Parab2d.hxx>
#include <Handle_Geom2d_BSplineCurve.hxx>
#include <Handle_Geom2d_BezierCurve.hxx>
#include <Standard_Boolean.hxx>
#include <Standard_Real.hxx>
#include <Standard.hxx>
#include <Standard_Macro.hxx>