fieldValue.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2016-2020 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::functionObjects::fieldValue
 
Group
    grpFieldFunctionObjects
 
Description
    Intermediate class for handling field value-based function objects.
 
Usage
    Minimal example by using \c system/controlDict.functions:
    \verbatim
    <userDefinedSubDictName1>
    {
        // Mandatory and other optional entries
        ...
 
        // Mandatory (inherited) entries (runtime modifiable)
        fields            (<field1> <field2> ... <fieldN>);
 
        // Optional (inherited) entries (runtime modifiable)
        writeFields       false;
        scaleFactor       1.0;
    }
    \endverbatim
 
    where the entries mean:
    \table
      Property    | Description                 | Type     | Req'd | Dflt
      fields      | Names of operand fields     | wordList |  yes  | -
      writeFields | Flag to output field values | bool     |  no   | false
      scaleFactor | Scaling factor              | scalar   |  no   | 1.0
    \endtable
 
    The inherited entries are elaborated in:
     - \link functionObject.H \endlink
     - \link writeFile.H \endlink
 
See also
    - Foam::functionObject
    - Foam::functionObjects::fvMeshFunctionObject
    - Foam::functionObjects::writeFile
    - ExtendedCodeGuide::functionObjects::field::fieldValue
 
SourceFiles
    fieldValue.C
    fieldValueTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef functionObjects_fieldValue_H
#define functionObjects_fieldValue_H
 
#include "fvMeshFunctionObject.H"
#include "writeFile.H"
#include "Field.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
namespace functionObjects
{
 
/*---------------------------------------------------------------------------*\
                         Class fieldValue Declaration
\*---------------------------------------------------------------------------*/
 
class fieldValue
:
    public fvMeshFunctionObject,
    public writeFile
{
 
protected:
 
    // Protected Data
 
        //- Flag to output field values
        bool writeFields_;
 
        //- Name of region (patch, zone, etc.)
        word regionName_;
 
        //- Scaling factor
        scalar scaleFactor_;
 
        //- Construction dictionary
        dictionary dict_;
 
        //- Names of operand fields
        wordList fields_;
 
 
    // Protected Member Functions
 
        //- Combine fields from all processor domains into single field
        template<class Type>
        void combineFields(Field<Type>& field);
 
        //- Combine fields from all processor domains into single field
        template<class Type>
        void combineFields(tmp<Field<Type>>&);
 
 
public:
 
    //- Run-time type information
    TypeName("fieldValue");
 
    // Declare runtime constructor selection table
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            fieldValue,
            dictionary,
            (
                const word& name,
                const objectRegistry& obr,
                const dictionary& dict
            ),
            (name, obr, dict)
        );
 
 
    // Constructors
 
        //- Construct from Time and dictionary
        fieldValue
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict,
            const word& valueType
        );
 
        //- Construct from objectRegistry and dictionary
        fieldValue
        (
            const word& name,
            const objectRegistry& obr,
            const dictionary& dict,
            const word& valueType
        );
 
        //- Return a reference to the selected fieldValue
        static autoPtr<fieldValue> New
        (
            const word& name,
            const objectRegistry& obr,
            const dictionary& dict,
            const bool output = true
        );
 
 
    //- Destructor
    virtual ~fieldValue() = default;
 
 
    // Member Functions
 
        //- Return the reference to the construction dictionary
        inline const dictionary& dict() const;
 
        //- Return the region name
        inline const word& regionName() const;
 
        //- Return the list of field names
        inline const wordList& fields() const;
 
        //- Return the output field values flag
        inline bool writeFields() const;
 
        //- Read from dictionary
        virtual bool read(const dictionary& dict);
 
        //- Execute
        virtual bool execute();
 
        //- Write
        virtual bool write();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "fieldValueI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "fieldValueTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //