EvaluationVectorFromNonConstantMatrix.hpp

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   Copyright (C) 2004, 2005, 2007 EPFL, Politecnico di Milano, INRIA
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/*!
 *   @file
     @brief This file contains the definition of the EvaluationVector class.

     @date 06/2011
     @author Samuel Quinodoz <samuel.quinodoz@epfl.ch>
 */
#ifndef EVALUATION_VECTORFROMNONCONSTANTMATRIX_HPP
#define EVALUATION_VECTORFROMNONCONSTANTMATRIX_HPP

#include <lifev/core/LifeV.hpp>

#include <lifev/core/array/VectorSmall.hpp>
#include <lifev/core/array/MatrixSmall.hpp>

#include <lifev/eta/expression/ExpressionVectorFromNonConstantMatrix.hpp>

namespace LifeV
{

namespace ExpressionAssembly
{

//! Evaluation for a vectorial constant
/*!
  @author Samuel Quinodoz <samuel.quinodoz@epfl.ch>

  This class aims at representing a vectorial constant in the assembly

  This class is an Evaluation class, and therefore, has all the methods
  required to work within the Evaluation trees.
 */
template <typename EvaluationType, UInt SpaceDim, UInt FieldDim>
class EvaluationVectorFromNonConstantMatrix
{
public:

    //! @name Public Types
    //@{

    //! Type of the value returned by this class
    typedef VectorSmall<FieldDim>                 return_Type;
    typedef MatrixSmall<FieldDim, SpaceDim>       matrix_Type;

    //@}


    //! @name Static constants
    //@{

    //! Flag for the global current FE
    const static flag_Type S_globalUpdateFlag;

    //! Flag for the test current FE
    const static flag_Type S_testUpdateFlag;

    //! Flag for the solution current FE
    const static flag_Type S_solutionUpdateFlag;

    //@}


    //! @name Constructors, destructor
    //@{

    //! Copy constructor
    EvaluationVectorFromNonConstantMatrix (const EvaluationVectorFromNonConstantMatrix<EvaluationType, SpaceDim, FieldDim >& evaluation)
        : M_evaluation( evaluation.M_evaluation ), M_column( evaluation.M_column)
    { }

    //! Expression-based constructor
    template< typename Expression>
    explicit EvaluationVectorFromNonConstantMatrix (const ExpressionVectorFromNonConstantMatrix<Expression, SpaceDim, FieldDim>& expression)
        : M_evaluation( expression.expr() ), M_column( expression.column() )
    {}

    //! Destructor
    ~EvaluationVectorFromNonConstantMatrix()
    {}

    //@}


    //! @name Methods
    //@{

    //! Do nothing internal update
    void update (const UInt& iElement)
    {
        M_evaluation.update ( iElement );
    }

    //! Display method
    static void display (std::ostream& out = std::cout)
    {
        out << "vector from a non constant matrix[" << FieldDim << "]";
    }

    //@}


    //! @name Set Methods
    //@{

    //! Do nothing setter for the global current FE
    template< typename CFEType >
    void setGlobalCFE (const CFEType* globalCFE)
    {
        M_evaluation.setGlobalCFE (globalCFE);
    }

    //! Do nothing setter for the test current FE
    template< typename CFEType >
    void setTestCFE (const CFEType* testCFE)
    {
        M_evaluation.setTestCFE (testCFE);
    }

    //! Do nothing setter for the solution current FE
    template< typename CFEType >
    void setSolutionCFE (const CFEType* solutionCFE)
    {
        M_evaluation.setSolutionCFE (solutionCFE);
    }

    //! Setter for the quadrature rule
    void setQuadrature (const QuadratureRule& qr)
    {
        M_evaluation.setQuadrature (qr);
    }

    //@}


    //! @name Get Methods
    //@{

    //! Getter for a value
    return_Type value_q (const UInt& q) const
    {
        return M_evaluation.value_q( q ).extractColumn( M_column );
    }

    //! Getter for the value for a vector
    return_Type value_qi (const UInt& q, const UInt& i) const
    {
      return M_evaluation.value_qi( q,i ).extractColumn( M_column );
    }

    //! Getter for the value for a matrix
    return_Type value_qij (const UInt& q, const UInt& i, const UInt& j) const
    {
      return M_evaluation.value_qij( q,i,j ).extractColumn( M_column );
    }

    //@}

private:

    // Storage
    EvaluationType        M_evaluation;
    UInt                  M_column;
};


template<typename EvaluationType,UInt SpaceDim , UInt FieldDim>
const flag_Type EvaluationVectorFromNonConstantMatrix<EvaluationType,SpaceDim, FieldDim>::S_globalUpdateFlag = EvaluationType::S_globalUpdateFlag;

template<typename EvaluationType,UInt SpaceDim , UInt FieldDim>
const flag_Type EvaluationVectorFromNonConstantMatrix<EvaluationType,SpaceDim, FieldDim>::S_testUpdateFlag = EvaluationType::S_testUpdateFlag;

template<typename EvaluationType,UInt SpaceDim , UInt FieldDim>
const flag_Type EvaluationVectorFromNonConstantMatrix<EvaluationType,SpaceDim, FieldDim>::S_solutionUpdateFlag = EvaluationType::S_solutionUpdateFlag;


} // Namespace ExpressionAssembly

} // Namespace LifeV
#endif