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https://develop.openfoam.com/Development/openfoam.git
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ffdb280a27
- ditched PrimitivePatchExtra in favour of a PatchTools class that is currently just a collection of static functions. They could equally well live within PrimitivePatch itself, but isolated also has its advantages. - MeshedSurface, UnsortedMeshedSurface now have 'regions' instead of 'patches' since they are more like a faceZone for meshed surfaces than patches. This might avoid confusion at a later stage.
129 lines
4.1 KiB
C
129 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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\*---------------------------------------------------------------------------*/
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#include "PrimitivePatchTools.H"
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#include "SortableList.H"
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#include "transform.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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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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Foam::labelListList
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Foam::PatchTools::sortedEdgeFaces
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(
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const PrimitivePatch<Face, FaceList, PointField, PointType>& p
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)
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{
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const edgeList& edges = p.edges();
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const labelListList& edgeFaces = p.edgeFaces();
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const List<Face>& localFaces = p.localFaces();
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const Field<PointType>& localPoints = p.localPoints();
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// create the lists for the various results. (resized on completion)
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labelListList& sortedEdgeFaces = labelListList(edgeFaces.size());
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forAll(edgeFaces, edgeI)
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{
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const labelList& faceNbs = edgeFaces[edgeI];
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if (faceNbs.size() > 2)
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{
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// Get point on edge and normalized direction of edge (= e2 base
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// of our coordinate system)
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const edge& e = edges[edgeI];
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const point& edgePt = localPoints[e.start()];
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vector e2 = e.vec(localPoints);
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e2 /= mag(e2) + VSMALL;
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// Get opposite vertex for 0th face
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const Face& f = localFaces[faceNbs[0]];
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label fp0 = findIndex(f, e[0]);
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label fp1 = f.fcIndex(fp0);
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label vertI = (f[fp1] != e[1] ? f[fp1] : f.fcIndex(fp1));
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// Get vector normal both to e2 and to edge from opposite vertex
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// to edge (will be x-axis of our coordinate system)
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vector e0 = e2 ^ (localPoints[vertI] - edgePt);
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e0 /= mag(e0) + VSMALL;
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// Get y-axis of coordinate system
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vector e1 = e2 ^ e0;
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SortableList<scalar> faceAngles(faceNbs.size());
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// e0 is reference so angle is 0
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faceAngles[0] = 0;
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for (label nbI = 1; nbI < faceNbs.size(); nbI++)
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{
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// Get opposite vertex
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const Face& f = localFaces[faceNbs[nbI]];
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label fp0 = findIndex(f, e[0]);
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label fp1 = f.fcIndex(fp0);
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label vertI = (f[fp1] != e[1] ? f[fp1] : f.fcIndex(fp1));
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vector vec = e2 ^ (localPoints[vertI] - edgePt);
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vec /= mag(vec) + VSMALL;
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faceAngles[nbI] = pseudoAngle
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(
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e0,
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e1,
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vec
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);
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}
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faceAngles.sort();
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sortedEdgeFaces[edgeI] = IndirectList<label>
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(
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faceNbs,
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faceAngles.indices()
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);
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}
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else
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{
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// No need to sort. Just copy.
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sortedEdgeFaces[edgeI] = faceNbs;
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}
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}
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return sortedEdgeFaces;
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}
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// ************************************************************************* //
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