// 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 _Blend_CurvPointFuncInv_HeaderFile
#define _Blend_CurvPointFuncInv_HeaderFile

#ifndef _math_FunctionSetWithDerivatives_HeaderFile
#include <math_FunctionSetWithDerivatives.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
#ifndef _Standard_Real_HeaderFile
#include <Standard_Real.hxx>
#endif
class math_Vector;
class math_Matrix;
class gp_Pnt;


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

//! Deferred   class  for a  function  used  to compute  a <br>
//!          blending surface between a  surface and a curve, using <br>
//!          a  guide  line.   This   function is  used  to find  a <br>
//!          solution on a done point of the curve. <br>
//!          The vector <X>  used in Value, Values and  Derivatives <br>
//!          methods  has  to   be the  vector   of the  parametric <br>
//!          coordinates w, U,  V where w is  the parameter  on the <br>
//!          guide line, U,V   are the parametric coordinates of  a <br>
//!          point on the partner surface. <br>
class Blend_CurvPointFuncInv  : public math_FunctionSetWithDerivatives {

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); 
      }
 // Methods PUBLIC
 // 

//! Returns 3. <br>
Standard_EXPORT   Standard_Integer NbVariables() const;

//! returns the number of equations of the function. <br>
Standard_EXPORT virtual  Standard_Integer NbEquations() const = 0;

//! computes the values <F> of the Functions for the <br>
//!          variable <X>. <br>
//!          Returns True if the computation was done successfully, <br>
//!          False otherwise. <br>
Standard_EXPORT virtual  Standard_Boolean Value(const math_Vector& X,math_Vector& F)  = 0;

//! returns the values <D> of the derivatives for the <br>
//!          variable <X>. <br>
//!          Returns True if the computation was done successfully, <br>
//!          False otherwise. <br>
Standard_EXPORT virtual  Standard_Boolean Derivatives(const math_Vector& X,math_Matrix& D)  = 0;

//! returns the values <F> of the functions and the derivatives <br>
//!          <D> for the variable <X>. <br>
//!          Returns True if the computation was done successfully, <br>
//!          False otherwise. <br>
Standard_EXPORT virtual  Standard_Boolean Values(const math_Vector& X,math_Vector& F,math_Matrix& D)  = 0;

//! Set the Point on which a solution has to be found. <br>
Standard_EXPORT virtual  void Set(const gp_Pnt& P)  = 0;

//! Returns in the vector Tolerance the parametric tolerance <br>
//!          for each of the 3 variables; <br>
//!          Tol is the tolerance used in 3d space. <br>
Standard_EXPORT virtual  void GetTolerance(math_Vector& Tolerance,const Standard_Real Tol) const = 0;

//! Returns in the vector InfBound the lowest values allowed <br>
//!          for each of the 3 variables. <br>
//!          Returns in the vector SupBound the greatest values allowed <br>
//!          for each of the 3 variables. <br>
Standard_EXPORT virtual  void GetBounds(math_Vector& InfBound,math_Vector& SupBound) const = 0;

//! Returns Standard_True if Sol is a zero of the function. <br>
//!          Tol is the tolerance used in 3d space. <br>
Standard_EXPORT virtual  Standard_Boolean IsSolution(const math_Vector& Sol,const Standard_Real Tol)  = 0;





protected:

 // Methods PROTECTED
 // 


 // Fields PROTECTED
 //


private: 

 // Methods PRIVATE
 // 


 // Fields PRIVATE
 //


};





// other Inline functions and methods (like "C++: function call" methods)
//


#endif
