faMeshDistributor.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2022 OpenCFD Ltd.
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by
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    You should have received a copy of the GNU General Public License
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Class
    Foam::faMeshDistributor

Description
    Holds a reference to the original mesh (the baseMesh)
    and optionally to a subset of that mesh (the subMesh)
    with mapping lists for points, faces, and cells.

SourceFiles
    faMeshDistributor.C
    faMeshDistributorNew.C
    faMeshDistributorTemplates.C

\*---------------------------------------------------------------------------*/

#ifndef Foam_faMeshDistributor_H
#define Foam_faMeshDistributor_H

#include "faMesh.H"
#include "mapDistributePolyMesh.H"
#include "areaFieldsFwd.H"
#include "edgeFieldsFwd.H"

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

namespace Foam
{

// Forward Declarations
class IOobjectList;

/*---------------------------------------------------------------------------*\
                      Class faMeshDistributor Declaration
\*---------------------------------------------------------------------------*/

class faMeshDistributor
{
    // Private Data

        //- The source mesh reference
        const faMesh& srcMesh_;

        //- The destination mesh reference
        const faMesh& tgtMesh_;

        //- Distribution map reference (faMesh)
        const mapDistributePolyMesh& distMap_;

        //- Internal edge mapper
        mutable std::unique_ptr<mapDistributeBase> internalEdgeMap_;

        //- Patch edge mappers
        mutable PtrList<mapDistributeBase> patchEdgeMaps_;

        //- Do I need to write (eg, master only for reconstruct)
        bool isWriteProc_;


    // Private Member Functions

        //- Construct internal edge mapping
        void createInternalEdgeMap() const;

        //- Construct per-patch edge mapping
        void createPatchMaps() const;

        static mapDistributePolyMesh createReconstructMap
        (
            const faMesh& mesh,
            const autoPtr<faMesh>& baseMeshPtr,
            const labelUList& faceProcAddr,
            const labelUList& edgeProcAddr,
            const labelUList& pointProcAddr,
            const labelUList& boundaryProcAddr
        );

        //- No copy construct
        faMeshDistributor(const faMeshDistributor&) = delete;

        //- No copy assignment
        void operator=(const faMeshDistributor&) = delete;


public:

    //- Output verbosity when writing
    static int verbose_;


    // Constructors

        //- Construct from components
        faMeshDistributor
        (
            const faMesh& srcMesh,
            const faMesh& tgtMesh,
            const mapDistributePolyMesh& faDistMap,
            const bool isWriteProc = false
        );


    // Static Methods

        //- Distribute mesh according to the given (volume) mesh distribution.
        //  Uses 'tgtPolyMesh' for the new mesh
        static mapDistributePolyMesh distribute
        (
            const faMesh& oldMesh,
            const mapDistributePolyMesh& distMap,  
            const polyMesh& tgtPolyMesh,
            autoPtr<faMesh>& newMeshPtr
        );

        //- Distribute mesh according to the given (volume) mesh distribution.
        //  Re-uses polyMesh from oldMesh for the new mesh
        static mapDistributePolyMesh distribute
        (
            const faMesh& oldMesh,
            const mapDistributePolyMesh& distMap,  
            autoPtr<faMesh>& newMeshPtr
        );


    // Member Functions

        //- Get status of write enabled (on this proc)
        bool isWriteProc() const noexcept
        {
            return isWriteProc_;
        }

        //- Change status of write enabled (on this proc)
        bool isWriteProc(const bool on) noexcept
        {
            bool old(isWriteProc_);
            isWriteProc_ = on;
            return old;
        }


    // Field Mapping

        //- Read, distribute and write all/selected point field types
        //- (scalar, vector, ... types)
        label distributeAllFields
        (
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        ) const;

        //- Distribute area field
        template<class Type>
        tmp<GeometricField<Type, faPatchField, areaMesh>>
        distributeField
        (
            const GeometricField<Type, faPatchField, areaMesh>& fld
        ) const;

        //- Distribute edge field
        template<class Type>
        tmp<GeometricField<Type, faePatchField, edgeMesh>>
        distributeField
        (
            const GeometricField<Type, faePatchField, edgeMesh>& fld
        ) const;

        //- Read and distribute area field
        template<class Type>
        tmp<GeometricField<Type, faPatchField, areaMesh>>
        distributeAreaField
        (
            const IOobject& fieldObject
        ) const;

        //- Read and distribute edge field
        template<class Type>
        tmp<GeometricField<Type, faePatchField, edgeMesh>>
        distributeEdgeField
        (
            const IOobject& fieldObject
        ) const;

        //- Read, distribute and write all/selected area fields
        template<class Type>
        label distributeAreaFields
        (
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        ) const;

        //- Read, distribute and write all/selected area fields
        template<class Type>
        label distributeEdgeFields
        (
            const IOobjectList& objects,
            const wordRes& selectedFields = wordRes()
        ) const;
};


// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

} // End namespace Foam

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //


#ifdef NoRepository
#   include "faMeshDistributorTemplates.C"
#endif

// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

#endif

// ************************************************************************* //