// Created on: 1995-11-03
// Created by: Laurent BOURESCHE
// Copyright (c) 1995-1999 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 <Adaptor3d_Curve.hxx>
#include <GeomFill_SimpleBound.hxx>
#include <gp_Pnt.hxx>
#include <gp_Vec.hxx>
#include <Law.hxx>
#include <Law_BSpFunc.hxx>
#include <Law_Function.hxx>
#include <Standard_Type.hxx>

IMPLEMENT_STANDARD_RTTIEXT(GeomFill_SimpleBound,GeomFill_Boundary)

//=======================================================================
//function : GeomFill_SimpleBound
//purpose  : 
//=======================================================================
GeomFill_SimpleBound::GeomFill_SimpleBound
(const Handle(Adaptor3d_Curve)& Curve,
 const Standard_Real           Tol3d,
 const Standard_Real           Tolang) :
 GeomFill_Boundary(Tol3d,Tolang), myC3d(Curve)
{
}

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

gp_Pnt GeomFill_SimpleBound::Value(const Standard_Real U) const 
{
  Standard_Real x = U;
  if(!myPar.IsNull()) x = myPar->Value(U);
  return myC3d->Value(x);
}


//=======================================================================
//function : D1
//purpose  : 
//=======================================================================

void GeomFill_SimpleBound::D1(const Standard_Real U, 
			      gp_Pnt& P, 
			      gp_Vec& V) const 
{
  Standard_Real x = U, dx = 1.;
  if(!myPar.IsNull()) myPar->D1(U,x,dx);
  myC3d->D1(x, P, V);
  V.Multiply(dx);
}

//=======================================================================
//function : Reparametrize
//purpose  : 
//=======================================================================

void GeomFill_SimpleBound::Reparametrize(const Standard_Real First, 
					 const Standard_Real Last,
					 const Standard_Boolean HasDF, 
					 const Standard_Boolean HasDL, 
					 const Standard_Real DF, 
					 const Standard_Real DL,
					 const Standard_Boolean Rev)
{
  Handle(Law_BSpline) curve = Law::Reparametrize(*myC3d,
						 First,Last,
						 HasDF,HasDL,DF,DL,
						 Rev,30);
  myPar = new Law_BSpFunc();
  Handle(Law_BSpFunc)::DownCast (myPar)->SetCurve(curve);
}

//=======================================================================
//function : Bounds
//purpose  : 
//=======================================================================

void GeomFill_SimpleBound::Bounds(Standard_Real& First, 
				  Standard_Real& Last) const 
{
  if(!myPar.IsNull()) myPar->Bounds(First,Last);
  else {
    First = myC3d->FirstParameter();
    Last = myC3d->LastParameter();
  }
}


//=======================================================================
//function : IsDegenerated
//purpose  : 
//=======================================================================

Standard_Boolean GeomFill_SimpleBound::IsDegenerated() const 
{
  return Standard_False;
}
