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141 lines
4.1 KiB
C
141 lines
4.1 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 1991-2009 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM 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 2 of the License, or (at your
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option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 OpenFOAM; if not, write to the Free Software Foundation,
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Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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Description
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Orders the local points on the patch for most efficient search
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\*---------------------------------------------------------------------------*/
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#include "SLList.H"
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#include "boolList.H"
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// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
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template
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<
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class Face,
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template<class> class FaceList,
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class PointField,
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class PointType
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>
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void
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Foam::PrimitivePatch<Face, FaceList, PointField, PointType>::
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calcLocalPointOrder() const
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{
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// Note: Cannot use bandCompressing as point-point addressing does
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// not exist and is not considered generally useful.
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//
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if (debug)
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{
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Pout<< "PrimitivePatch<Face, FaceList, PointField, PointType>::"
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<< "calcLocalPointOrder() : "
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<< "calculating local point order"
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<< endl;
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}
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if (localPointOrderPtr_)
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{
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// it is considered an error to attempt to recalculate
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// if already allocated
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FatalErrorIn
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(
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"PrimitivePatch<Face, FaceList, PointField, PointType>::"
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"calcLocalPointOrder()"
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) << "local point order already calculated"
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<< abort(FatalError);
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}
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const List<Face>& lf = localFaces();
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const labelListList& ff = faceFaces();
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boolList visitedFace(lf.size(), false);
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localPointOrderPtr_ = new labelList(meshPoints().size(), -1);
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labelList& pointOrder = *localPointOrderPtr_;
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boolList visitedPoint(pointOrder.size(), false);
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label nPoints = 0;
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forAll (lf, faceI)
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{
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if (!visitedFace[faceI])
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{
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SLList<label> faceOrder(faceI);
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do
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{
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const label curFace = faceOrder.first();
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faceOrder.removeHead();
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if (!visitedFace[curFace])
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{
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visitedFace[curFace] = true;
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const labelList& curPoints = lf[curFace];
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// mark points
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forAll (curPoints, pointI)
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{
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if (!visitedPoint[curPoints[pointI]])
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{
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visitedPoint[curPoints[pointI]] = true;
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pointOrder[nPoints] = curPoints[pointI];
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nPoints++;
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}
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}
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// add face neighbours to the list
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const labelList& nbrs = ff[curFace];
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forAll (nbrs, nbrI)
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{
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if (!visitedFace[nbrs[nbrI]])
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{
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faceOrder.append(nbrs[nbrI]);
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}
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}
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}
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} while (faceOrder.size());
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}
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}
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if (debug)
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{
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Pout<< "PrimitivePatch<Face, FaceList, PointField, PointType>::"
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<< "calcLocalPointOrder() "
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<< "finished calculating local point order"
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<< endl;
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}
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}
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// ************************************************************************* //
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