ENH: application to extrude a faceZone into a separate region mesh

Extrudes either internal faces to inflate a baffle or extrudes boundary
faces to create separate mesh. Inserts directMappedWall between the two
meshes.

applications/utilities/mesh/generation/extrudeToRegionMesh/createShellMesh.H

@@ -0,0 +1,177 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2009 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+Class
+    Foam::createShellMesh
+
+Description
+    Creates mesh by extruding a patch.
+
+SourceFiles
+    createShellMesh.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef createShellMesh_H
+#define createShellMesh_H
+
+#include "primitiveFacePatch.H"
+#include "PackedBoolList.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// Forward declaration of classes
+class mapPolyMesh;
+class polyTopoChange;
+
+/*---------------------------------------------------------------------------*\
+                           Class createShellMesh Declaration
+\*---------------------------------------------------------------------------*/
+
+class createShellMesh
+{
+    // Private data
+
+        //- Reference to patch to extrude
+        const primitiveFacePatch& patch_;
+
+//        //- Non-manifold edges on patch
+//        const PackedBoolList& nonManifoldEdge_;
+
+        //- Per point on face the region
+        const faceList& pointRegions_;
+
+        //- From region to original patch point
+        const labelList& regionPoints_;
+
+
+        labelList cellToFaceMap_;
+
+        labelList faceToFaceMap_;
+
+        labelList faceToEdgeMap_;
+
+        labelList pointToPointMap_;
+
+
+    // Private Member Functions
+
+        //- Disallow default bitwise copy construct
+        createShellMesh(const createShellMesh&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const createShellMesh&);
+
+
+public:
+
+    //- Runtime type information
+    ClassName("createShellMesh");
+
+
+    // Constructors
+
+        //- Construct from mesh.
+        createShellMesh
+        (
+            const primitiveFacePatch& patch,
+//            const PackedBoolList& nonManifoldEdge,
+            const faceList& pointRegions,
+            const labelList& regionPoints
+        );
+
+
+    // Member Functions
+
+
+        // Access
+
+            //- From region cell to patch face
+            const labelList& cellToFaceMap() const
+            {
+                return cellToFaceMap_;
+            }
+
+            //- From region face to patch face. Contains turning index:
+            //      > 0 : face originating from master side
+            //            (owner side for unflipped face)
+            //      < 0 : (bottom) face originating from slave side
+            //            (neighbour side for unflipped face)
+            //      = 0 : for all side faces
+            const labelList& faceToFaceMap() const
+            {
+                return faceToFaceMap_;
+            }
+
+            //- From region side-face to patch edge. -1 for non-edge faces.
+            const labelList& faceToEdgeMap() const
+            {
+                return faceToEdgeMap_;
+            }
+
+            //- From region point to patch point.
+            const labelList& pointToPointMap() const
+            {
+                return pointToPointMap_;
+            }
+
+
+        // Other
+
+            //- Helper: calculate point regions
+            static void calcPointRegions
+            (
+                const primitiveFacePatch& patch,
+                const PackedBoolList& nonManifoldEdge,
+                faceList& pointRegions,
+                labelList& regionPoints
+            );
+
+            //- Play commands into polyTopoChange to create layer mesh.
+            void setRefinement
+            (
+                const pointField& thickness,
+                const labelList& extrudeMasterPatchID,
+                const labelList& extrudeSlavePatchID,
+                const labelListList& extrudeEdgePatches,
+                polyTopoChange& meshMod
+            );
+
+            //- Update any locally stored mesh information.
+            void updateMesh(const mapPolyMesh&);
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //