removeCells.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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
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    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
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Class
    Foam::removeCells
 
Description
    Given list of cells to remove insert all the topology changes.
 
    Works in two passes:
    - get faces that will become boundary faces
    - given these faces and the patches they have to go into make the
      changes.
 
SourceFiles
    removeCells.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef removeCells_H
#define removeCells_H
 
#include "labelList.H"
#include "typeInfo.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward declaration of classes
class polyMesh;
class polyTopoChange;
class mapPolyMesh;
 
/*---------------------------------------------------------------------------*\
                           Class removeCells Declaration
\*---------------------------------------------------------------------------*/
 
class removeCells
{
    // Private data
 
        //- Reference to mesh
        const polyMesh& mesh_;
 
        //- Whether or not to synchronize parallel case.
        const bool syncPar_;
 
 
    // Private Member Functions
 
        //- Decrease count of elements of f
        static void uncount
        (
            const labelList& f,
            labelList& nUsage
        );
 
 
public:
 
    //- Runtime type information
    ClassName("removeCells");
 
 
    // Constructors
 
        //- Construct from mesh. syncPar: do parallel synchronization.
        removeCells(const polyMesh& mesh, const bool syncPar = true);
 
 
    // Member Functions
 
        // Topology changes
 
            //- Get labels of exposed faces.
            //  These are
            //  - internal faces that become boundary faces
            //  - coupled faces that become uncoupled (since one of the sides
            //    gets deleted)
            labelList getExposedFaces(const labelList& cellsToRemove) const;
 
            //- Play commands into polyTopoChange to remove cells.
            //  patchIDs is for every element in facesToExpose (see above) the
            //  patch it has to go into. This cannot be a coupled patch!
            void setRefinement
            (
                const labelList& cellsToRemove,
                const labelList& facesToExpose,
                const labelList& patchIDs,
                polyTopoChange&
            ) const;
 
            //- Force recalculation of locally stored data on topological change
            void updateMesh(const mapPolyMesh&)
            {}
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //