walkPatch.H

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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
    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::walkPatch
 
Description
    Collection of static functions to do various simple patch related things.
 
SourceFiles
    walkPatch.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef walkPatch_H
#define walkPatch_H
 
#include "labelList.H"
#include "primitivePatch.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
/*---------------------------------------------------------------------------*\
                           Class walkPatch Declaration
\*---------------------------------------------------------------------------*/
 
class walkPatch
{
    // Private data
 
        //- Reference to patch to walk on
        const primitivePatch& pp_;
 
        //- Reference to zones
        const labelList& faceZone_;
 
        //- How to walk through faces
        const bool reverse_;
 
        //- Reference to list to mark off visited faces
        boolList& visited_;
 
 
        // Faces visited
        DynamicList<label> visitOrder_;
 
        // Index in face of vertex it was visited through
        DynamicList<label> indexInFace_;
 
 
    // Private Member Functions
 
        //- Get other face using v0, v1. Returns -1 if none.
        label getNeighbour
        (
            const label faceI,
            const label fp,
            const label v0,
            const label v1
        ) const;
 
        //- Gets labels of changed faces and enterVertices on faces.
        // Returns labels of faces changed and enterVertices on them.
        void faceToFace
        (
            const labelList& changedFaces,
            const labelList& enterVerts,
 
            labelList& nbrFaces,
            labelList& nbrEnterVerts
        );
 
 
        //- Disallow default bitwise copy construct
        walkPatch(const walkPatch&);
 
        //- Disallow default bitwise assignment
        void operator=(const walkPatch&);
 
public:
 
    ClassName("walkPatch");
 
 
    // Constructors
 
        //- Construct from components
        walkPatch
        (
            const primitivePatch& pp,
            const labelList& faceZone,  // Per face which zone it belongs to
            const bool reverse,         // Reverse walk
            const label faceI,          // Current face
            const label enterVertI,     // Vertex across which this face
                                        // is visited.
            boolList& visited
        );
 
 
    // Member Functions
 
        const DynamicList<label>& visitOrder() const
        {
            return visitOrder_;
        }
 
        const DynamicList<label>& indexInFace() const
        {
            return indexInFace_;
        }
 
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //