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patchZones.H

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00001 /*---------------------------------------------------------------------------*\
00002   =========                 |
00003   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
00004    \\    /   O peration     |
00005     \\  /    A nd           | Copyright (C) 1991-2005 OpenCFD Ltd.
00006      \\/     M anipulation  |
00007 -------------------------------------------------------------------------------
00008 License
00009     This file is part of OpenFOAM.
00010 
00011     OpenFOAM is free software; you can redistribute it and/or modify it
00012     under the terms of the GNU General Public License as published by the
00013     Free Software Foundation; either version 2 of the License, or (at your
00014     option) any later version.
00015 
00016     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
00017     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00018     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
00019     for more details.
00020 
00021     You should have received a copy of the GNU General Public License
00022     along with OpenFOAM; if not, write to the Free Software Foundation,
00023     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
00024 
00025 Class
00026     patchZones
00027 
00028 Description
00029     Calculates zone number for every face of patch. Gets constructed from
00030     patch and is a labeList with zone number for every patch face.
00031 
00032 SourceFiles
00033     patchZones.C
00034 
00035 \*---------------------------------------------------------------------------*/
00036 
00037 #ifndef patchZones_H
00038 #define patchZones_H
00039 
00040 #include "labelList.H"
00041 #include "pointField.H"
00042 #include "polyPatch.H"
00043 
00044 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00045 
00046 namespace Foam
00047 {
00048 
00049 /*---------------------------------------------------------------------------*\
00050                            Class patchZones Declaration
00051 \*---------------------------------------------------------------------------*/
00052 
00053 class patchZones
00054 :
00055     public labelList
00056 {
00057     // Private data
00058 
00059         //- Reference to patch
00060         const primitivePatch& pp_;
00061 
00062         //- Reference to protected edges
00063         const boolList& borderEdge_;
00064 
00065         //- Max number of zones
00066         label nZones_;
00067 
00068 
00069     // Private Member Functions
00070 
00071         //- Gets labels of changed faces and propagates them to the edges.
00072         //  Returns labels of edges changed. Does not cross edges marked in
00073         //  regionEdge
00074         labelList faceToEdge
00075         (
00076             const labelList& changedFaces,
00077             labelList& edgeRegion
00078         );
00079 
00080         //- Reverse of faceToEdge: gets edges and returns faces
00081         labelList edgeToFace(const labelList& changedEdges);
00082 
00083         //- Fill *this with current zone for every face reachable
00084         //  from faceI without crossing edge marked in borderEdge.
00085         void markZone(label faceI);
00086 
00087 public:
00088 
00089     ClassName("patchZones");
00090 
00091 
00092     // Constructors
00093 
00094         //- Fills *this with zone of face. Zone is area
00095         //  reachable by edge crossing without crossing borderEdge
00096         //  (bool for every edge in patch).
00097         patchZones(const primitivePatch& pp, const boolList& borderEdge);
00098 
00099 
00100     // Member Functions
00101 
00102         //- Number of zones
00103         label nZones() const
00104         {
00105             return nZones_;
00106         }
00107 
00108 };
00109 
00110 
00111 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00112 
00113 } // End namespace Foam
00114 
00115 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
00116 
00117 #endif
00118 
00119 // ************************************************************************* //
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