interpolation2DTable.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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::interpolation2DTable
 
Description
    2D table interpolation. The data must be in ascending order in both
    dimensions x and y.
 
SourceFiles
    interpolation2DTable.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef interpolation2DTable_H
#define interpolation2DTable_H
 
#include "List.H"
#include "Tuple2.H"
#include "tableReader.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                    Class interpolation2DTable Declaration
\*---------------------------------------------------------------------------*/
 
template<class Type>
class interpolation2DTable
:
    public List<Tuple2<scalar, List<Tuple2<scalar, Type> > > >
{
public:
 
    // Public data types
 
        //- Enumeration for handling out-of-bound values
        enum boundsHandling
        {
            ERROR,          
            WARN,           
            CLAMP           
        };
 
        //- Cconvenience typedef
        typedef List<Tuple2<scalar, List<Tuple2<scalar, Type> > > > table;
 
 
private:
 
    // Private data
 
        //- Enumeration for handling out-of-bound values
        boundsHandling boundsHandling_;
 
        //- File name
        fileName fileName_;
 
        //- The actual reader
        autoPtr<tableReader<Type> > reader_;
 
 
    // Private Member Functions
 
        //- Read the table of data from file
        void readTable();
 
        //- Return interpolated value in List
        Type interpolateValue
        (
            const List<Tuple2<scalar, Type> >& data,
            const scalar
        ) const;
 
        //- Return an X index from the matrix
        template<class BinaryOp>
        label Xi
        (
            const BinaryOp& bop,
            const scalar valueX,
            const bool reverse
        ) const;
 
 
public:
 
    // Constructors
 
        //- Construct null
        interpolation2DTable();
 
        //- Construct from components
        interpolation2DTable
        (
            const List<Tuple2<scalar, List<Tuple2<scalar, Type> > > >& values,
            const boundsHandling bounds,
            const fileName& fName
        );
 
        //- Construct given the name of the file containing the table of data
        interpolation2DTable(const fileName& fName);
 
        //- Construct by reading the fileName and boundsHandling from dictionary
        interpolation2DTable(const dictionary& dict);
 
        //- Construct copy
        interpolation2DTable(const interpolation2DTable& interpTable);
 
 
    // Member Functions
 
        //- Return the out-of-bounds handling as a word
        word boundsHandlingToWord(const boundsHandling& bound) const;
 
        //- Return the out-of-bounds handling as an enumeration
        boundsHandling wordToBoundsHandling(const word& bound) const;
 
        //- Set the out-of-bounds handling from enum, return previous setting
        boundsHandling outOfBounds(const boundsHandling& bound);
 
        //- Check that list is monotonically increasing
        //  Exit with a FatalError if there is a problem
        void checkOrder() const;
 
        //- Write
        void write(Ostream& os) const;
 
 
    // Member Operators
 
        //- Return an element of constant Tuple2<scalar, Type>
        const List<Tuple2<scalar, Type> >& operator[](const label) const;
 
        //- Return an interpolated value
        Type operator()(const scalar, const scalar) const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
#   include "interpolation2DTable.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //