text: // Created on: 1993-06-07
  // Created by: Jacques GOUSSARD
  // 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.
  
  #ifndef _IntPatch_ArcFunction_HeaderFile
  #define _IntPatch_ArcFunction_HeaderFile
  
  #include <Adaptor3d_Surface.hxx>
  #include <IntSurf_Quadric.hxx>
  #include <TColgp_SequenceOfPnt.hxx>
  #include <math_FunctionWithDerivative.hxx>
  
  class IntPatch_ArcFunction  : public math_FunctionWithDerivative
  {
  public:
  
    DEFINE_STANDARD_ALLOC
  
    
    Standard_EXPORT IntPatch_ArcFunction();
    
      void SetQuadric (const IntSurf_Quadric& Q);
    
      void Set (const Handle(Adaptor2d_Curve2d)& A);
    
      void Set (const Handle(Adaptor3d_Surface)& S);
    
    Standard_EXPORT Standard_Boolean Value (const Standard_Real X, Standard_Real& F) Standard_OVERRIDE;
    
    Standard_EXPORT Standard_Boolean Derivative (const Standard_Real X, Standard_Real& D) Standard_OVERRIDE;
    
    Standard_EXPORT Standard_Boolean Values (const Standard_Real X, Standard_Real& F, Standard_Real& D) Standard_OVERRIDE;
    
    Standard_EXPORT Standard_Integer NbSamples() const;
    
    Standard_EXPORT virtual Standard_Integer GetStateNumber() Standard_OVERRIDE;
    
      const gp_Pnt& Valpoint (const Standard_Integer Index) const;
    
      const IntSurf_Quadric& Quadric() const;
    
      const Handle(Adaptor2d_Curve2d)& Arc() const;
    
      const Handle(Adaptor3d_Surface)& Surface() const;
  
      //! Returns the point, which has been computed
      //! while the last calling Value() method
      const gp_Pnt& LastComputedPoint() const;
  
  
  
  protected:
  
  
  
  
  
  private:
  
  
  
    Handle(Adaptor2d_Curve2d) myArc;
    Handle(Adaptor3d_Surface) mySurf;
    IntSurf_Quadric myQuad;
    gp_Pnt ptsol;
    TColgp_SequenceOfPnt seqpt;
  
  
  };
  
  
  #include <IntPatch_ArcFunction.lxx>
  
  
  
  
  
  #endif // _IntPatch_ArcFunction_HeaderFile
  