Creation of OpenFOAM-dev repository 15/04/2008

applications/utilities/mesh/generation/blockMesh/createPatches.C

@@ -0,0 +1,181 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2007 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
+
+Description
+
+
+\*---------------------------------------------------------------------------*/
+
+#include "blockMesh.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
+
+faceList blockMesh::createPatchFaces
+(
+    const polyPatch& patchTopologyFaces
+)
+{
+    blockMesh& blocks = *this;
+
+    labelList blockLabels = patchTopologyFaces.polyPatch::faceCells();
+
+    label nFaces=0;
+
+    forAll(patchTopologyFaces, patchTopologyFaceLabel)
+    {
+        label blockLabel = blockLabels[patchTopologyFaceLabel];
+
+        faceList blockFaces
+        (
+            blocks[blockLabel].blockDef().blockShape().faces()
+        );
+
+        forAll(blockFaces, blockFaceLabel)
+        {
+            if
+            (
+                blockFaces[blockFaceLabel]
+             == patchTopologyFaces[patchTopologyFaceLabel]
+            )
+            {
+                nFaces +=
+                    blocks[blockLabel].boundaryPatches()[blockFaceLabel].size();
+            }
+        }
+    }
+
+
+    faceList patchFaces(nFaces);
+    face quadFace(4);
+    label faceLabel = 0;
+
+    forAll(patchTopologyFaces, patchTopologyFaceLabel)
+    {
+        label blockLabel = blockLabels[patchTopologyFaceLabel];
+
+        faceList blockFaces
+        (
+            blocks[blockLabel].blockDef().blockShape().faces()
+        );
+
+        forAll(blockFaces, blockFaceLabel)
+        {
+            if
+            (
+                blockFaces[blockFaceLabel]
+                == patchTopologyFaces[patchTopologyFaceLabel]
+            )
+            {
+                const labelListList& blockPatchFaces =
+                    blocks[blockLabel].boundaryPatches()[blockFaceLabel];
+
+                forAll(blockPatchFaces, blockFaceLabel)
+                {
+                    // Lookup the face points
+                    // and collapse duplicate point labels
+
+                    quadFace[0] =
+                        mergeList_
+                        [
+                            blockPatchFaces[blockFaceLabel][0]
+                          + blockOffsets_[blockLabel]
+                        ];
+
+                    label nUnique = 1;
+
+                    for
+                    (
+                        label facePointLabel = 1;
+                        facePointLabel < 4;
+                        facePointLabel++
+                    )
+                    {
+                        quadFace[nUnique] =
+                            mergeList_
+                            [
+                                blockPatchFaces[blockFaceLabel][facePointLabel]
+                              + blockOffsets_[blockLabel]
+                            ];
+
+                        if (quadFace[nUnique] != quadFace[nUnique-1])
+                        {
+                            nUnique++;
+                        }
+                    }
+
+                    if (quadFace[nUnique-1] == quadFace[0])
+                    {
+                        nUnique--;
+                    }
+
+                    if (nUnique == 4)
+                    {
+                        patchFaces[faceLabel++] = quadFace;
+                    }
+                    else if (nUnique == 3)
+                    {
+                        patchFaces[faceLabel++] = face
+                        (
+                            labelList::subList(quadFace, 3)
+                        );
+                    }
+                    // else the face has collapsed to an edge or point
+                }
+            }
+        }
+    }
+
+    patchFaces.setSize(faceLabel);
+
+    return patchFaces;
+}
+
+
+faceListList blockMesh::createPatches()
+{
+    Info<< "\nCreating patches\n";
+
+    const polyPatchList& patchTopologies = topology().boundaryMesh();
+    faceListList patches(patchTopologies.size());
+
+    forAll(patchTopologies, patchLabel)
+    {
+        patches[patchLabel] =
+            createPatchFaces(patchTopologies[patchLabel]);
+    }
+
+    return patches;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //