TableBase.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::Function1Types::TableBase
 
Description
    Base class for table with bounds handling, interpolation and integration
 
SourceFiles
    TableBase.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef TableBase_H
#define TableBase_H
 
#include "tableBounds.H"
#include "Function1.H"
#include "Tuple2.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class interpolationWeights;
 
namespace Function1Types
{
 
/*---------------------------------------------------------------------------*\
                        Class TableBase Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class TableBase
:
    public Function1<Type>
{
protected:
 
    // Protected Data
 
        //- Handling for out-of-bound values
        const bounds::repeatableBounding bounding_;
 
        //- Interpolation type
        const word interpolationScheme_;
 
        //- Table data
        List<Tuple2<scalar, Type>> table_;
 
        //- Extracted values
        mutable autoPtr<scalarField> tableSamplesPtr_;
 
        //- Interpolator method
        mutable autoPtr<interpolationWeights> interpolatorPtr_;
 
        //- Cached indices and weights
        mutable labelList currentIndices_;
 
        mutable scalarField currentWeights_;
 
 
    // Protected Member Functions
 
        //- Return (demand driven) interpolator
        const interpolationWeights& interpolator() const;
 
        //- No copy assignment
        void operator=(const TableBase<Type>&) = delete;
 
 
public:
 
    // Constructors
 
        //- Construct from dictionary - note table is not populated
        TableBase(const word& name, const dictionary& dict);
 
        //- Copy constructor. Note: steals interpolator, tableSamples
        explicit TableBase(const TableBase<Type>& tbl);
 
 
    //- Destructor
    virtual ~TableBase();
 
 
    // Member Functions
 
        //- Check the table for size and consistency
        void check() const;
 
        //- Check minimum table bounds
        bool checkMinBounds(const scalar x, scalar& xDash) const;
 
        //- Check maximum table bounds
        bool checkMaxBounds(const scalar x, scalar& xDash) const;
 
        //- Convert time
        virtual void convertTimeBase(const Time& t);
 
        //- Return Table value
        virtual Type value(const scalar x) const;
 
        //- Integrate between two (scalar) values
        virtual Type integrate(const scalar x1, const scalar x2) const;
 
        //- Return the reference values
        virtual tmp<scalarField> x() const;
 
        //- Return the dependent values
        virtual tmp<Field<Type>> y() const;
 
        //- Write all table data in dictionary format
        virtual void writeData(Ostream& os) const;
 
        //- Write keywords only in dictionary format.
        //  Used for non-inline table types
        virtual void writeEntries(Ostream& os) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1Types
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "TableBase.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //