// Created on: 1992-10-13
// Created by: Laurent BUCHARD
// Copyright (c) 1992-1999 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 <Extrema_POnCurv2d.hxx>

Standard_Real IntCurve_ProjPCurGen::FindParameter 
  (const TheCurve& C,
   const gp_Pnt2d& P,
   const Standard_Real LowParameter,
   const Standard_Real HighParameter,
   const Standard_Real) 
{
  Standard_Real theparam,defaultparam;
  Standard_Integer NbPts = TheCurveTool::NbSamples(C);
  Standard_Real theEpsX  = TheCurveTool::EpsX(C);
  Extrema_POnCurv2d POnC;
  
  IntCurve_TheCurveLocator::Locate(P,C,NbPts,LowParameter,HighParameter,POnC);
  defaultparam = POnC.Parameter();
  IntCurve_TheLocateExtPC Loc(P,C,defaultparam,theEpsX);

  if(Loc.IsDone() == Standard_False) {
    //-- cout<<"\n Erreur dans LocateExtPC "<<endl;
    theparam = defaultparam;
  }
  else {
    if(Loc.IsMin() == Standard_False) { 
      //-- cout<<"\n Erreur dans LocateExtPC (Maximum trouve) "<<endl;
      theparam = defaultparam;
    }
    else {
      theparam = Loc.Point().Parameter();
    }
  }
  return theparam;
}


Standard_Real IntCurve_ProjPCurGen::FindParameter
  (const TheCurve& C,
   const gp_Pnt2d& P,
   const Standard_Real Tol) 
{

  Standard_Real theParam;
  theParam = FindParameter( C
			   ,P
			   ,TheCurveTool::FirstParameter(C)
			   ,TheCurveTool::LastParameter(C)
			   ,Tol);
  return theParam;
}