// File generated by CPPExt (Value)
//
//                     Copyright (C) 1991 - 2000 by  
//                      Matra Datavision SA.  All rights reserved.
//  
//                     Copyright (C) 2001 - 2004 by
//                     Open CASCADE SA.  All rights reserved.
// 
// This file is part of the Open CASCADE Technology software.
//
// This software may be distributed and/or modified under the terms and
// conditions of the Open CASCADE Public License as defined by Open CASCADE SA
// and appearing in the file LICENSE included in the packaging of this file.
//  
// This software is distributed on an "AS IS" basis, without warranty of any
// kind, and Open CASCADE SA hereby disclaims all such warranties,
// including without limitation, any warranties of merchantability, fitness
// for a particular purpose or non-infringement. Please see the License for
// the specific terms and conditions governing rights and limitations under the
// License.

#ifndef _BRepExtrema_ExtPF_HeaderFile
#define _BRepExtrema_ExtPF_HeaderFile

#ifndef _Standard_HeaderFile
#include <Standard.hxx>
#endif
#ifndef _Standard_Macro_HeaderFile
#include <Standard_Macro.hxx>
#endif

#ifndef _Extrema_ExtPS_HeaderFile
#include <Extrema_ExtPS.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _TColStd_SequenceOfReal_HeaderFile
#include <TColStd_SequenceOfReal.hxx>
#endif
#ifndef _Extrema_SequenceOfPOnSurf_HeaderFile
#include <Extrema_SequenceOfPOnSurf.hxx>
#endif
#ifndef _BRepAdaptor_Surface_HeaderFile
#include <BRepAdaptor_Surface.hxx>
#endif
#ifndef _Extrema_ExtFlag_HeaderFile
#include <Extrema_ExtFlag.hxx>
#endif
#ifndef _Extrema_ExtAlgo_HeaderFile
#include <Extrema_ExtAlgo.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
class TopoDS_Vertex;
class TopoDS_Face;
class gp_Pnt;


class BRepExtrema_ExtPF
{
 public:

  void* operator new(size_t,void* anAddress) 
  {
    return anAddress;
  }
  void* operator new(size_t size) 
  {
    return Standard::Allocate(size); 
  }
  void  operator delete(void *anAddress) 
  {
    if (anAddress) Standard::Free((Standard_Address&)anAddress); 
  }

  Standard_EXPORT BRepExtrema_ExtPF()
  {}
  //! It calculates all the distances. <br>
  Standard_EXPORT BRepExtrema_ExtPF(const TopoDS_Vertex& TheVertex,const TopoDS_Face& TheFace,
                                    const Extrema_ExtFlag TheFlag = Extrema_ExtFlag_MINMAX,
                                    const Extrema_ExtAlgo TheAlgo = Extrema_ExtAlgo_Grad);
  
  Standard_EXPORT void Initialize(const TopoDS_Face& TheFace,
                                  const Extrema_ExtFlag TheFlag = Extrema_ExtFlag_MINMAX,
                                  const Extrema_ExtAlgo TheAlgo = Extrema_ExtAlgo_Grad);

  //! An exception is raised if the fields have not been initialized. <br>
  //! Be careful: this method uses the Face only for classify not for the fields. <br>
  Standard_EXPORT void Perform(const TopoDS_Vertex& TheVertex,const TopoDS_Face& TheFace);
  //! True if the distances are found. <br>
  Standard_EXPORT Standard_Boolean IsDone() const
  {
    return myExtPS.IsDone();
  }
  //! Returns the number of extremum distances. <br>
  Standard_EXPORT Standard_Integer NbExt() const
  {
    return myPoints.Length();
  }
  //! Returns the value of the <N>th extremum square distance. <br>
  Standard_EXPORT Standard_Real SquareDistance(const Standard_Integer N) const
  {
    return mySqDist.Value(N);
  }
  //! Returns the parameters on the Face of the <N>th extremum distance. <br>
  Standard_EXPORT void Parameter(const Standard_Integer N,Standard_Real& U,Standard_Real& V) const
  {
    myPoints.Value(N).Parameter(U, V);
  }
  //! Returns the Point of the <N>th extremum distance. <br>
  Standard_EXPORT gp_Pnt Point(const Standard_Integer N) const
  {
    return myPoints.Value(N).Value();
  }

  Standard_EXPORT void SetFlag(const Extrema_ExtFlag F)
  {
    myExtPS.SetFlag(F);
  }

  Standard_EXPORT void SetAlgo(const Extrema_ExtAlgo A)
  {
    myExtPS.SetAlgo(A);
  }

 private:

  Extrema_ExtPS myExtPS;
  TColStd_SequenceOfReal mySqDist;
  Extrema_SequenceOfPOnSurf myPoints;
  BRepAdaptor_Surface mySurf;
};

#endif