// 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 _FEmTool_ElementsOfRefMatrix_HeaderFile
#define _FEmTool_ElementsOfRefMatrix_HeaderFile

#ifndef _Handle_PLib_Base_HeaderFile
#include <Handle_PLib_Base.hxx>
#endif
#ifndef _Standard_Integer_HeaderFile
#include <Standard_Integer.hxx>
#endif
#ifndef _math_FunctionSet_HeaderFile
#include <math_FunctionSet.hxx>
#endif
#ifndef _Standard_Boolean_HeaderFile
#include <Standard_Boolean.hxx>
#endif
class PLib_Base;
class Standard_ConstructionError;
class math_Vector;


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

//! this  class  describes  the  functions  needed  for <br>
//!          calculating  matrix  elements  of  RefMatrix  for  linear <br>
//!          criteriums  (Tension,  Flexsion  and  Jerk). <br>
//!          Each  function  from  set  gives  value  Pi(u)'*Pj(u)'  or <br>
//!          Pi(u)''*Pj(u)''  or  Pi(u)'''*Pj(u)'''  for  each  i  and  j, <br>
//!          where  Pi(u)  is  i-th  basis  function  of  expansion  and <br>
//!          (')  means  derivative. <br>
class FEmTool_ElementsOfRefMatrix  : public math_FunctionSet {

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
 // 


Standard_EXPORT FEmTool_ElementsOfRefMatrix(const Handle(PLib_Base)& TheBase,const Standard_Integer DerOrder);

//! returns the number of variables of the function. <br>
//!  It  is  supposed  that  NbVariables  =  1. <br>
Standard_EXPORT   Standard_Integer NbVariables() const;

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

//! 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>
//!          F  contains  results  only  for  i<=j  in  following  order: <br>
//!          P0*P0,  P0*P1,  P0*P2...  P1*P1,  P1*P2,...  (upper  triangle of <br>
//!          matrix  {PiPj}) <br>
Standard_EXPORT   Standard_Boolean Value(const math_Vector& X,math_Vector& F) ;





protected:

 // Methods PROTECTED
 // 


 // Fields PROTECTED
 //


private: 

 // Methods PRIVATE
 // 


 // Fields PRIVATE
 //
Handle_PLib_Base myBase;
Standard_Integer myDerOrder;
Standard_Integer myNbEquations;


};





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


#endif
