fvMeshTools.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
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     \\/     M anipulation  |
-------------------------------------------------------------------------------
    Copyright (C) 2012-2016 OpenFOAM Foundation
    Copyright (C) 2015-2025 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::fvMeshTools
 
Description
    A collection of tools for operating on an fvMesh.
 
SourceFiles
    fvMeshTools.C
    fvMeshToolsProcAddr.C
    fvMeshToolsTemplates.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_fvMeshTools_H
#define Foam_fvMeshTools_H
 
#include "fvMesh.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class fileOperation;
class mapDistributePolyMesh;
 
/*---------------------------------------------------------------------------*\
                         Class fvMeshTools Declaration
\*---------------------------------------------------------------------------*/
 
class fvMeshTools
{
    // Private Member Functions
 
    template<class GeoField>
    static void addPatchFields
    (
        fvMesh&,
        const dictionary& patchFieldDict,
        const word& defaultPatchFieldType,
        const typename GeoField::value_type& defaultPatchValue
    );
 
    //- Set patchFields according to dictionary
    template<class GeoField>
    static void setPatchFields
    (
        fvMesh& mesh,
        const label patchi,
        const dictionary& patchFieldDict
    );
 
    //- Set patchFields to value
    template<class GeoField>
    static void setPatchFields
    (
        fvMesh& mesh,
        const label patchi,
        const typename GeoField::value_type& value
    );
 
    // Remove last patch fields
    template<class GeoField>
    static void trimPatchFields(fvMesh&, const label nPatches);
 
    template<class GeoField>
    static void reorderPatchFields(fvMesh&, const labelList& oldToNew);
 
    // Remove trailing patches
    static void trimPatches(fvMesh&, const label nPatches);
 
    //- Read mesh if available, or create empty mesh with non-proc as per
    //- proc0 mesh.
    //  Has two modes of operation.
    //  If the readHandler is non-nullptr, use it to decide on availability.
    //  Requires:
    //  - all processors to have all patches (and in same order).
    //  - io.instance() set to facesInstance
    static autoPtr<fvMesh> loadOrCreateMeshImpl
    (
        const IOobject& io,
        refPtr<fileOperation>* readHandlerPtr,  // Can be nullptr
        const bool decompose,  // Only used if readHandlerPtr == nullptr
        const bool verbose = false
    );
 
 
public:
 
    // Member Functions
 
    //- Add patch. Inserts patch before all processor patches.
    //  Supply per field the new patchField per field as a
    //  subdictionary or a default type. If validBoundary call is parallel
    //  synced and all add the same patch with same settings.
    static label addPatch
    (
        fvMesh& mesh,
        const polyPatch& patch,
        const dictionary& patchFieldDict,
        const word& defaultPatchFieldType,
        const bool validBoundary
    );
 
    //- Change patchField on registered fields according to dictionary
    static void setPatchFields
    (
        fvMesh& mesh,
        const label patchi,
        const dictionary& patchFieldDict
    );
 
    //- Change patchField to zero on registered fields
    static void zeroPatchFields(fvMesh& mesh, const label patchi);
 
    //- Reorder and remove trailing patches.
    //  Is parallel synced when validBoundary is true
    static void reorderPatches
    (
        fvMesh&,
        const labelList& oldToNew,
        const label nPatches,
        const bool validBoundary
    );
 
    //- Remove zero sized patches. All but processor patches are
    //  assumed to be present on all processors (so size will be reduced
    //  if validBoundary). Return map from new
    //  to old patches
    static labelList removeEmptyPatches(fvMesh&, const bool validBoundary);
 
    //- Remove zero sized patches unless explicitly forced to preserve.
    //  See above.
    static labelList removeEmptyPatches
    (
        fvMesh&,
        const wordList& keepPatches,
        const bool validBoundary
    );
 
    //- Set the fvGeometryScheme to basic (to avoid parallel communication)
    static void setBasicGeometry(fvMesh& mesh);
 
    //- Read mesh or create dummy mesh (0 cells, >0 patches).
    //
    //  Works in two modes according to masterOnlyReading:
    //  true : create dummy mesh on all procs
    //  false: checks locally for mesh directories and only creates dummy mesh
    //         if not present
    static autoPtr<fvMesh> newMesh
    (
        const IOobject& io,
        const bool masterOnlyReading,
        const bool verbose = false
    );
 
    //- Read mesh if available, or create empty mesh with non-proc as per
    //- proc0 mesh.
    //  Requires:
    //  - all processors to have all patches (and in same order).
    //  - io.instance() set to facesInstance
    static autoPtr<fvMesh> loadOrCreateMesh
    (
        const IOobject& io,
        const bool decompose,
        const bool verbose = false
    );
 
    //- Read mesh if available, or create empty mesh with non-proc as per
    //- proc0 mesh.
    //  The fileHandler is specified on processors that have a processor mesh.
    //  Generates empty mesh on other processors.
    static autoPtr<fvMesh> loadOrCreateMesh
    (
        const IOobject& io,
        refPtr<fileOperation>& readHandler,
        const bool verbose = true
    );
 
    //- Create additional fvSchemes/fvSolution files
    static void createDummyFvMeshFiles
    (
        const objectRegistry& parent,
        const word& regionName,
        const bool verbose = false
    );
 
 
    //- Read procAddressing components (reconstructing)
    static autoPtr<mapDistributePolyMesh> readProcAddressing
    (
        const fvMesh& procMesh,
        const fvMesh* baseMeshPtr
    );
 
    //- Write addressing if decomposing (1 to many) or reconstructing
    //- (many to 1)
    static void writeProcAddressing
    (
        const fvMesh& procMesh,
        const mapDistributePolyMesh& map,
        const bool decompose,
        const fileName& writeInstance,
        refPtr<fileOperation>& writeHandler
    );
 
 
    // Housekeeping
 
        //- Read procAddressing components (reconstructing)
        static autoPtr<mapDistributePolyMesh> readProcAddressing
        (
            const fvMesh& procMesh,
            const autoPtr<fvMesh>& baseMeshPtr
        );
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#ifdef NoRepository
    #include "fvMeshToolsTemplates.C"
#endif
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //