renumberMethod.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2015 OpenFOAM Foundation
    Copyright (C) 2022 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
    the Free Software Foundation, either version 3 of the License, or
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    You should have received a copy of the GNU General Public License
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Class
    Foam::renumberMethod
 
Description
    Abstract base class for renumbering
 
SourceFiles
    renumberMethod.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_renumberMethod_H
#define Foam_renumberMethod_H
 
#include "polyMesh.H"
#include "pointField.H"
#include "CompactListList.H"
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class renumberMethod Declaration
\*---------------------------------------------------------------------------*/
 
class renumberMethod
{
protected:
 
    // Protected Data
 
        const dictionary& renumberDict_;
 
 
    // Protected Member Functions
 
        //- No copy construct
        renumberMethod(const renumberMethod&) = delete;
 
        //- No copy assignment
        void operator=(const renumberMethod&) = delete;
 
 
public:
 
    //- Runtime type information
    TypeName("renumberMethod");
 
 
    // Declare run-time constructor selection tables
 
        declareRunTimeSelectionTable
        (
            autoPtr,
            renumberMethod,
            dictionary,
            (
                const dictionary& renumberDict
            ),
            (renumberDict)
        );
 
 
    // Selectors
 
        //- Return a reference to the selected renumbering method
        static autoPtr<renumberMethod> New
        (
            const dictionary& renumberDict
        );
 
 
    // Constructors
 
        //- Construct given the renumber dictionary
        explicit renumberMethod(const dictionary& dict)
        :
            renumberDict_(dict)
        {}
 
 
    //- Destructor
    virtual ~renumberMethod() = default;
 
 
    // Member Functions
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  This is only defined for geometric renumberMethods.
        virtual labelList renumber(const pointField&) const
        {
            NotImplemented;
            return labelList();
        }
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  Use the mesh connectivity (if needed)
        virtual labelList renumber(const polyMesh&, const pointField&) const;
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  Addressing in losort addressing (= neighbour + offsets into
        //  neighbour)
        virtual labelList renumber
        (
            const labelList& cellCells,
            const labelList& offsets,
            const pointField&
        ) const;
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  Gets passed agglomeration map (from fine to coarse cells) and coarse
        //  cell
        //  location. Can be overridden by renumberMethods that provide this
        //  functionality natively. Coarse cells are local to the processor
        //  (if in parallel). If you want to have coarse cells spanning
        //  processors use the globalCellCells instead.
        virtual labelList renumber
        (
            const polyMesh& mesh,
            const labelList& fineToCoarse,
            const pointField& coarsePoints
        ) const;
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  Uses 'unpack' internally, so should be overloaded when possible
        virtual labelList renumber
        (
            const CompactListList<label>& cellCells,
            const pointField& cellCentres
        ) const;
 
        //- Return the order in which cells need to be visited
        //- (ie. from ordered back to original cell label).
        //  The connectivity is equal to mesh.cellCells() except
        //  - the connections are across coupled patches
        virtual labelList renumber
        (
            const labelListList& cellCells,
            const pointField& cellCentres
        ) const = 0;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //