| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2016-2025 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::functionObjects::subtract | |
| Description | |
| From the first field subtract the remaining fields in the list. | |
| The operation can be applied to any volume or surface fields generating a | |
| volume or surface scalar field. | |
| Example of function object specification: | |
| \verbatim | |
| Tdiff | |
| { | |
| type subtract; | |
| libs ("libfieldFunctionObjects.so"); | |
| fields (T Tmean); | |
| result Tdiff; | |
| executeControl writeTime; | |
| writeControl writeTime; | |
| } | |
| \endverbatim | |
| See also | |
| Foam::functionObjects::fieldsExpression | |
| Foam::functionObjects::fvMeshFunctionObject | |
| SourceFiles | |
| subtract.C | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace functionObjects | |
| { | |
| /*---------------------------------------------------------------------------*\ | |
| Class subtract Declaration | |
| \*---------------------------------------------------------------------------*/ | |
| class subtract | |
| : | |
| public fieldsExpression | |
| { | |
| // Private Member Functions | |
| //- Subtract the list of fields and return true if successful | |
| virtual bool calc(); | |
| public: | |
| //- Runtime type information | |
| TypeName("subtract"); | |
| // Constructors | |
| //- Construct from Time and dictionary | |
| subtract | |
| ( | |
| const word& name, | |
| const Time& runTime, | |
| const dictionary& dict | |
| ); | |
| //- Destructor | |
| virtual ~subtract(); | |
| }; | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| } // End namespace functionObjects | |
| } // End namespace Foam | |
| // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // | |
| // ************************************************************************* // | |