#include <Standard_DefineAlloc.hxx>
#include <Standard_Handle.hxx>
-#include <Standard_Boolean.hxx>
#include <TColgp_Array1OfPnt2d.hxx>
#include <Standard_Integer.hxx>
#include <GeomAbs_Shape.hxx>
-#include <Standard_Real.hxx>
#include <TColStd_Array1OfReal.hxx>
#include <Approx_ParametrizationType.hxx>
class Geom2d_BSplineCurve;