fieldValueDelta.H

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/*---------------------------------------------------------------------------*\
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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::functionObjects::fieldValues::fieldValueDelta
 
Description
    Provides a differencing option between two 'field value' function objects.
 
    Example of function object specification:
    \verbatim
    fieldValueDelta1
    {
        type            fieldValueDelta;
        libs            ("libfieldFunctionObjects.so");
        operation       subtract;
 
        region1
        {
            ...
        }
 
        region2
        {
            ...
        }
    }
    \endverbatim
 
Usage
    \table
        Property     | Description             | Required    | Default value
        type         | type name: fieldValueDelta   | yes    |
    \endtable
 
    The \c operation is one of:
    \plaintable
       add           | add
       subtract      | subtract
       min           | minimum
       max           | maximum
       average       | average
    \endplaintable
 
See also
    Foam::functionObject
    Foam::functionObject::fieldValue
    Foam::functionObjects::regionFunctionObject
    Foam::functionObjects::logFiles
 
SourceFiles
    fieldValueDelta.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef functionObjects_fieldValueDelta_H
#define functionObjects_fieldValueDelta_H
 
#include "regionFunctionObject.H"
#include "logFiles.H"
#include "fieldValue.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
namespace functionObjects
{
namespace fieldValues
{
 
/*---------------------------------------------------------------------------*\
                       Class fieldValueDelta Declaration
\*---------------------------------------------------------------------------*/
 
class fieldValueDelta
:
    public regionFunctionObject,
    public logFiles
{
public:
        //- Operation type enumeration
        enum class operationType
        {
            add,
            subtract,
            min,
            max,
            average
        };
 
        //- Operation type names
        static const NamedEnum<operationType, 5> operationTypeNames_;
 
 
private:
 
    // Private Data
 
        //- Operation to apply to values
        operationType operation_;
 
        //- Field value region object 1
        autoPtr<fieldValue> region1Ptr_;
 
        //- Field value region object 2
        autoPtr<fieldValue> region2Ptr_;
 
 
    // Private Member Functions
 
        //- Templated function to process common fields
        template<class Type>
        void processFields(bool& found);
 
        //- Templated function to apply the operation
        template<class Type>
        Type applyOperation(const Type& value1, const Type& value2) const;
 
 
protected:
 
    // Protected Member Functions
 
        //- Output file header information
        virtual void writeFileHeader(const label i);
 
 
public:
 
    //- Run-time type information
    TypeName("fieldValueDelta");
 
 
    // Constructors
 
        //- Construct from Time and dictionary
        fieldValueDelta
        (
            const word& name,
            const Time& runTime,
            const dictionary& dict
        );
 
 
    //- Destructor
    virtual ~fieldValueDelta();
 
 
    // Public Member Functions
 
        //- Read from dictionary
        virtual bool read(const dictionary&);
 
        //- Return the list of fields required
        virtual wordList fields() const;
 
        //- Do nothing
        virtual bool execute();
 
        //- Calculate and write
        virtual bool write();
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace fieldValues
} // End namespace functionObjects
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "fieldValueDeltaTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //