fvSurfaceMapper.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2024 OpenCFD Ltd.
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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
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Class
    Foam::fvSurfaceMapper

Description
    A finiteVolume surface mapper.

SourceFiles
    fvSurfaceMapper.C

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

#ifndef Foam_fvSurfaceMapper_H
#define Foam_fvSurfaceMapper_H

#include "morphFieldMapper.H"
#include "fvMesh.H"
#include "faceMapper.H"
#include "HashSet.H"
#include "mapPolyMesh.H"

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

namespace Foam
{

/*---------------------------------------------------------------------------*\
                         Class fvSurfaceMapper Declaration
\*---------------------------------------------------------------------------*/

class fvSurfaceMapper
:
    public morphFieldMapper
{
    // Private Data

        //- Reference to mesh
        const fvMesh& mesh_;

        //- Reference to face mapper
        const faceMapper& faceMap_;


    // Demand-Driven Data

        //- Direct addressing (only one for of addressing is used)
        mutable std::unique_ptr<labelList> directAddrPtr_;

        //- Interpolated addressing (only one for of addressing is used)
        mutable std::unique_ptr<labelListList> interpAddrPtr_;

        //- Interpolation weights
        mutable std::unique_ptr<scalarListList> weightsPtr_;

        //- Inserted faces
        mutable std::unique_ptr<labelList> insertedObjectsPtr_;



    // Private Member Functions

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

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


        //- Calculate addressing
        void calcAddressing() const;


public:

    // Constructors

        //- Construct from components
        fvSurfaceMapper
        (
            const fvMesh& mesh,
            const faceMapper& mapper
        );


    //- Destructor
    virtual ~fvSurfaceMapper();


    // Member Functions

        //- Return size
        virtual label size() const
        {
            return mesh_.nInternalFaces();
        }

        //- Return size of field before mapping
        virtual label sizeBeforeMapping() const
        {
            return faceMap_.internalSizeBeforeMapping();
        }

        //- Is the mapping direct
        virtual bool direct() const
        {
            return faceMap_.direct();
        }

        //- Has unmapped elements
        virtual bool hasUnmapped() const
        {
            return insertedObjects();
        }

        //- Return direct addressing
        virtual const labelUList& directAddressing() const;

        //- Return interpolated addressing
        virtual const labelListList& addressing() const;

        //- Return interpolation weights
        virtual const scalarListList& weights() const;

        //- Are there any inserted faces
        virtual bool insertedObjects() const
        {
            return faceMap_.insertedObjects();
        }

        //- Return list of inserted faces
        virtual const labelList& insertedObjectLabels() const;

        //- Return flux flip map
        const labelHashSet& flipFaceFlux() const
        {
            return faceMap_.flipFaceFlux();
        }
};


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

} // End namespace Foam

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

#endif

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