0025706: SIGSEGV after making existing BSplineCurve rational

[occt.git] / src / Geom2d / Geom2d_Curve.cxx

// Created on: 1993-03-24
// Created by: JCV
// Copyright (c) 1993-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.

#include <Geom2d_Curve.ixx>



typedef Geom2d_Curve         Curve;
typedef Handle(Geom2d_Curve) Handle(Curve);


//=======================================================================
//function : Reversed
//purpose  : 
//=======================================================================

Handle(Geom2d_Curve) Geom2d_Curve::Reversed () const
{
  Handle(Curve) C = Handle(Curve)::DownCast(Copy());
  C->Reverse();
  return C;
}

//=======================================================================
//function : TransformedParameter
//purpose  : 
//=======================================================================

Standard_Real Geom2d_Curve::TransformedParameter(const Standard_Real U,
						 const gp_Trsf2d& ) const
{
  return U;
}

//=======================================================================
//function : ParametricTransformation
//purpose  : 
//=======================================================================

Standard_Real Geom2d_Curve::ParametricTransformation(const gp_Trsf2d& ) const
{
  return 1.;
}

//=======================================================================
//function : Period
//purpose  : 
//=======================================================================

Standard_Real Geom2d_Curve::Period() const
{
  Standard_NoSuchObject_Raise_if
    ( !IsPeriodic(),"Geom2d_Curve::Period");

  return ( LastParameter() - FirstParameter());
}


//=======================================================================
//function : Value
//purpose  : 
//=======================================================================

gp_Pnt2d  Geom2d_Curve::Value(const Standard_Real U)const 
{
  gp_Pnt2d P;
  D0(U,P);
  return P;
}