readFields.H

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    Copyright (C) 2016-2023 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/>.
 
InClass
    Foam::readFields
 
Description
    Helper routines for reading a field or fields, optionally with
    a mesh subset (using fvMeshSubsetProxy).
 
SourceFiles
    readFields.txx
 
\*---------------------------------------------------------------------------*/
 
#ifndef FoamToVTK_readFields_H
#define FoamToVTK_readFields_H
 
#include "fvMeshSubsetProxy.H"
#include "objectRegistry.H"
#include "IOobjectList.H"
#include "PtrList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
//- Get the field or return nullptr
template<class GeoField>
tmp<GeoField> getField
(
    const IOobject* io,
    const typename GeoField::Mesh& mesh,
    const bool syncPar
);
 
 
//- Get the field and subset it, or return nullptr
template<class GeoField>
tmp<GeoField> getField
(
    const IOobject* io,
    const fvMeshSubsetProxy& proxy,
    const bool syncPar,
    objectRegistry* cache = nullptr
);
 
 
//- Get the named field from the objects, or return nullptr.
template<class GeoField>
tmp<GeoField> getField
(
    const typename GeoField::Mesh& mesh,
    const IOobjectList& objects,
    const word& fieldName,
    const bool syncPar
);
 
 
//- Return the named field from the optional cache (if found),
//- or get it from the objects and subset it (add to cache).
//- Return nullptr if nothing worked.
template<class GeoField>
tmp<GeoField> getField
(
    const fvMeshSubsetProxy& proxy,
    const IOobjectList& objects,
    const word& fieldName,
    const bool syncPar,
    objectRegistry* cache = nullptr
);
 
 
//- Read the fields, and return as a pointer list
template<class GeoField>
PtrList<const GeoField> readFields
(
    const typename GeoField::Mesh& mesh,
    const IOobjectList& objects
);
 
 
//- Read the fields, optionally subset, and return as a pointer list
template<class GeoField>
PtrList<const GeoField> readFields
(
    const fvMeshSubsetProxy& proxy,
    const IOobjectList& objects
);
 
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "readFields.txx"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //