Table.H

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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::Function1s::Table
 
Description
    Templated interpolated tabulated data Function1.
 
    Items are stored in a list of Tuple2's. First column is always stored as
    scalar entries. Data is read in Tuple2 form:
 
Usage
    \verbatim
        <name>   table
        (
            (0.0 (1 2 3))
            (1.0 (4 5 6))
        );
    \endverbatim
 
    or in dictionary form which supports the setting of options, e.g.
    \verbatim
        <name>   table;
 
        values
        (
            (0.0 (1 2 3))
            (1.0 (4 5 6))
        );
 
        outOfBounds         clamp;     // optional out-of-bounds handling
        interpolationScheme linear;    // optional interpolation method
    \endverbatim
 
    or in sub-dictionary form which avoids clashes between table entries and
    other entries in the dictionary:
 
    \verbatim
        <name>
        {
            type    table;
 
            values
            (
                (0.0 (1 2 3))
                (1.0 (4 5 6))
            );
 
            outOfBounds         clamp;     // optional out-of-bounds handling
            interpolationScheme linear;    // optional interpolation method
        }
    \endverbatim
 
    The data may be read from a separate file in either native or CSV format:
 
    \verbatim
        <name>
        {
            type                table;
            file                "<file path>"; // Name/path of thedata file
            format              foam;      // data format (optional)
            outOfBounds         clamp;     // optional out-of-bounds handling
            interpolationScheme linear;    // optional interpolation method
        }
    \endverbatim
 
SourceFiles
    Table.C
 
See also
    FoamTableReader.C
    CsvTableReader.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Table_H
#define Table_H
 
#include "tableBase.H"
#include "Function1.H"
#include "TableReader.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class interpolationWeights;
 
namespace Function1s
{
 
/*---------------------------------------------------------------------------*\
                          Class Table Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class Table
:
    public tableBase,
    public FieldFunction1<Type, Table<Type>>
{
    // Private Data
 
        //- Enumeration for handling out-of-bound values
        const tableBase::boundsHandling boundsHandling_;
 
        //- Interpolation scheme
        const word interpolationScheme_;
 
        //- Table reader
        const autoPtr<TableReader<Type>> reader_;
 
        //- Table data
        const List<Tuple2<scalar, Type>> values_;
 
        //- Extracted values
        mutable autoPtr<scalarField> tableSamplesPtr_;
 
        //- Interpolator method
        mutable autoPtr<interpolationWeights> interpolatorPtr_;
 
        //- Cached indices
        mutable labelList indices_;
 
        //- Cached weights
        mutable scalarField weights_;
 
 
    // Private Member Functions
 
        //- Return (demand driven) interpolator
        const interpolationWeights& interpolator() const;
 
        //- Check the table for size and consistency
        void check() const;
 
        //- Bound the argument to the table. Errors or warns, or shifts the
        //  value if the table repeats. Does not clamp to the ends of the table
        //  as the interpolator already performs that function.
        scalar bound(const scalar x) const;
 
 
public:
 
    //- Runtime type information
    TypeName("table");
 
 
    // Constructors
 
        //- Construct from components
        Table
        (
            const word& name,
            const tableBase::boundsHandling boundsHandling,
            const word& interpolationScheme,
            const autoPtr<TableReader<Type>>& reader,
            const List<Tuple2<scalar, Type>>& table
        );
 
        //- Construct from name and dictionary
        Table
        (
            const word& name,
            const unitConversions& units,
            const dictionary& dict
        );
 
        //- Construct from name and dictionary
        Table
        (
            const word& name,
            const unitConversion& xUnits,
            const unitConversion& valueUnits,
            const dictionary& dict
        );
 
        //- Construct from name and Istream
        Table
        (
            const word& name,
            const unitConversions& units,
            Istream& dict
        );
 
        //- Copy constructor
        Table(const Table<Type>& tbl);
 
 
    //- Destructor
    virtual ~Table();
 
 
    // Member Functions
 
        //- Return the handling out-of-bound values
        const tableBase::boundsHandling& boundsHandling() const
        {
            return boundsHandling_;
        }
 
        //- Return the interpolation scheme
        const word& interpolationScheme() const
        {
            return interpolationScheme_;
        }
 
        //- Return table data
        const List<Tuple2<scalar, Type>>& values() const
        {
            return values_;
        }
 
        //- Return Table value as a function of scalar x
        virtual Type value(const scalar x) const;
 
        //- Integrate between two scalars
        virtual Type integral(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 data to dictionary stream
        virtual void write(Ostream& os, const unitConversions& units) const;
 
 
    // Member Operators
 
        //- Disallow default bitwise assignment
        void operator=(const Table<Type>&) = delete;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Function1s
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "Table.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //