139 lines
4.2 KiB
C
139 lines
4.2 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | foam-extend: Open Source CFD
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\\ / O peration | Version: 3.2
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\\ / A nd | Web: http://www.foam-extend.org
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\\/ M anipulation | For copyright notice see file Copyright
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-------------------------------------------------------------------------------
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License
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This file is part of foam-extend.
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foam-extend is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the
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Free Software Foundation, either version 3 of the License, or (at your
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option) any later version.
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foam-extend is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with foam-extend. If not, see <http://www.gnu.org/licenses/>.
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Description
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Create intermediate mesh files from SAMM files
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\*---------------------------------------------------------------------------*/
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#include "sammMesh.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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void sammMesh::calcPointCells() const
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{
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const static label UNIT_POINT_CELLS = 12;
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if (pointCellsPtr_)
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{
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FatalErrorIn("sammMesh::calcPointCells()")
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<< "PointCells already calculated"
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<< abort(FatalError);
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}
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pointCellsPtr_ = new labelListList(points_.size());
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labelListList& pc = *pointCellsPtr_;
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forAll(pc, i)
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{
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pc[i].setSize(UNIT_POINT_CELLS);
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}
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// Initialise the list of labels which will hold the count the
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// actual number of cells per point during the analysis
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labelList cellCount(points_.size());
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forAll(cellCount, i)
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{
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cellCount[i] = 0;
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}
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// Note. Unlike the standard point-cell algorithm, which asks the cell for
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// the supporting point labels, we need to work based on the cell faces.
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// This is because some of the faces for meshes with arbitrary interfaces
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// do not come from the cell shape, but from the slaves of the coupled
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// match. It is also adventageous to remove the duplicates from the
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// point-cell addressing, because this removes a lot of waste later.
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//
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// For each cell
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forAll(cellShapes_, cellI)
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{
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const faceList& faces = cellFaces_[cellI];
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forAll (faces, i)
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{
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// For each vertex
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const labelList& labels = faces[i];
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forAll(labels, j)
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{
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// Set working point label
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label curPoint = labels[j];
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labelList& curPointCells = pc[curPoint];
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label curCount = cellCount[curPoint];
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// check if the cell has been added before
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bool found = false;
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for (label f = 0; f < curCount; f++)
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{
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if (curPointCells[f] == cellI)
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{
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found = true;
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break;
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}
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}
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if (!found)
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{
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// If the list of pointCells is not big enough, double it
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if (curPointCells.size() <= curCount)
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{
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curPointCells.setSize(curPointCells.size()*2);
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}
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// Enter the cell label in the point's cell list
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curPointCells[curCount] = cellI;
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// Increment the cell count for the point addressed
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cellCount[curPoint]++;
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}
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}
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}
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}
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// Finally, truncate the lists made to their active size
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forAll(pc, i)
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{
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pc[i].setSize(cellCount[i]);
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}
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}
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const labelListList& sammMesh::pointCells() const
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{
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if (!pointCellsPtr_)
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{
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calcPointCells();
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}
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return *pointCellsPtr_;
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}
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// ************************************************************************* //
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