cellToCellStencil.H

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
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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
    (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::cellToCellStencil
 
Description
    baseclass for extended cell centred addressing. Contains per cell a
    list of neighbouring cells and/or boundaryfaces in global addressing.
 
SourceFiles
    cellToCellStencil.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef cellToCellStencil_H
#define cellToCellStencil_H
 
#include "globalIndex.H"
#include "boolList.H"
#include "HashSet.H"
#include "indirectPrimitivePatch.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class polyMesh;
 
/*---------------------------------------------------------------------------*\
                      Class cellToCellStencil Declaration
\*---------------------------------------------------------------------------*/
 
class cellToCellStencil
:
    public labelListList
{
    // Private data
 
        const polyMesh& mesh_;
 
        //- Global numbering for cells and boundary faces
        const globalIndex globalNumbering_;
 
 
protected:
 
        //- Merge two lists.
        static void merge
        (
            const label,
            const label,
            const labelList&,
            labelList&
        );
 
        //- Merge two lists.
        static void merge(const label, const labelList&, labelList&);
 
        //- Valid boundary faces (not empty and not coupled)
        void validBoundaryFaces(boolList& isValidBFace) const;
 
        //- Return patch of all coupled faces.
        autoPtr<indirectPrimitivePatch> allCoupledFacesPatch() const;
 
        //- Combine operator for labelLists
        class unionEqOp
        {
            public:
            void operator()(labelList& x, const labelList& y) const;
        };
 
        //- Collect cell neighbours of faces in global numbering
        void insertFaceCells
        (
            const label exclude0,
            const label exclude1,
            const boolList& nonEmptyFace,
            const labelList& faceLabels,
            labelHashSet& globals
        ) const;
 
        //- Collect cell neighbours of faces in global numbering
        labelList calcFaceCells
        (
            const boolList& nonEmptyFace,
            const labelList& faceLabels,
            labelHashSet& globals
        ) const;
 
 
public:
 
    // Constructors
 
        //- Construct from mesh
        explicit cellToCellStencil(const polyMesh&);
 
 
    // Member Functions
 
        const polyMesh& mesh() const
        {
            return mesh_;
        }
 
        //- Global numbering for cells and boundary faces
        const globalIndex& globalNumbering() const
        {
            return globalNumbering_;
        }
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //