// Created on: 1997-08-06
// Created by: Philippe MANGIN
// Copyright (c) 1997-1999 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.

#ifndef _GeomFill_QuasiAngularConvertor_HeaderFile
#define _GeomFill_QuasiAngularConvertor_HeaderFile

#include "Standard.hxx"
#include "Standard_DefineAlloc.hxx"

#include "math_Matrix.hxx"
#include "math_Vector.hxx"
#include "gp_Pnt.hxx"
#include "NCollection_Array1.hxx"
#include "gp_Vec.hxx"
class gp_Pnt;
class gp_Vec;

//! To convert circular section in QuasiAngular Bezier
//! form
class GeomFill_QuasiAngularConvertor
{
public:
  DEFINE_STANDARD_ALLOC

  Standard_EXPORT GeomFill_QuasiAngularConvertor();

  //! say if <me> is Initialized
  Standard_EXPORT bool Initialized() const;

  Standard_EXPORT void Init();

  Standard_EXPORT void Section(const gp_Pnt&               FirstPnt,
                               const gp_Pnt&               Center,
                               const gp_Vec&               Dir,
                               const double                Angle,
                               NCollection_Array1<gp_Pnt>& Poles,
                               NCollection_Array1<double>& Weights);

  Standard_EXPORT void Section(const gp_Pnt&               FirstPnt,
                               const gp_Vec&               DFirstPnt,
                               const gp_Pnt&               Center,
                               const gp_Vec&               DCenter,
                               const gp_Vec&               Dir,
                               const gp_Vec&               DDir,
                               const double                Angle,
                               const double                DAngle,
                               NCollection_Array1<gp_Pnt>& Poles,
                               NCollection_Array1<gp_Vec>& DPoles,
                               NCollection_Array1<double>& Weights,
                               NCollection_Array1<double>& DWeights);

  Standard_EXPORT void Section(const gp_Pnt&               FirstPnt,
                               const gp_Vec&               DFirstPnt,
                               const gp_Vec&               D2FirstPnt,
                               const gp_Pnt&               Center,
                               const gp_Vec&               DCenter,
                               const gp_Vec&               D2Center,
                               const gp_Vec&               Dir,
                               const gp_Vec&               DDir,
                               const gp_Vec&               D2Dir,
                               const double                Angle,
                               const double                DAngle,
                               const double                D2Angle,
                               NCollection_Array1<gp_Pnt>& Poles,
                               NCollection_Array1<gp_Vec>& DPoles,
                               NCollection_Array1<gp_Vec>& D2Poles,
                               NCollection_Array1<double>& Weights,
                               NCollection_Array1<double>& DWeights,
                               NCollection_Array1<double>& D2Weights);

private:
  bool        myinit;
  math_Matrix B;
  math_Vector Px;
  math_Vector Py;
  math_Vector W;
  math_Vector Vx;
  math_Vector Vy;
  math_Vector Vw;
};

#endif // _GeomFill_QuasiAngularConvertor_HeaderFile