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patchZones.C
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patchZones.C
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 OpenFOAM Foundation
\\/ 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 3 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, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "patchZones.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(patchZones, 0);
}
// * * * * * * * * * * * * * * * Global Functions * * * * * * * * * * * * * //
Foam::labelList Foam::patchZones::faceToEdge
(
const labelList& changedFaces,
labelList& edgeRegion
)
{
labelList changedEdges(pp_.nEdges(), -1);
label changedI = 0;
forAll(changedFaces, i)
{
label facei = changedFaces[i];
const labelList& fEdges = pp_.faceEdges()[facei];
forAll(fEdges, fEdgeI)
{
label edgeI = fEdges[fEdgeI];
if (!borderEdge_[edgeI] && (edgeRegion[edgeI] == -1))
{
edgeRegion[edgeI] = nZones_;
changedEdges[changedI++] = edgeI;
}
}
}
changedEdges.setSize(changedI);
return changedEdges;
}
Foam::labelList Foam::patchZones::edgeToFace(const labelList& changedEdges)
{
labelList changedFaces(pp_.size(), -1);
label changedI = 0;
forAll(changedEdges, i)
{
label edgeI = changedEdges[i];
const labelList& eFaces = pp_.edgeFaces()[edgeI];
forAll(eFaces, eFacei)
{
label facei = eFaces[eFacei];
if (operator[](facei) == -1)
{
operator[](facei) = nZones_;
changedFaces[changedI++] = facei;
}
}
}
changedFaces.setSize(changedI);
return changedFaces;
}
void Foam::patchZones::markZone(label facei)
{
// List of faces whose faceZone has been set.
labelList changedFaces(1, facei);
// List of edges whose faceZone has been set.
labelList changedEdges;
// Zones on all edges.
labelList edgeZone(pp_.nEdges(), -1);
while (true)
{
changedEdges = faceToEdge(changedFaces, edgeZone);
if (debug)
{
Info<< "From changedFaces:" << changedFaces.size()
<< " to changedEdges:" << changedEdges.size()
<< endl;
}
if (changedEdges.empty())
{
break;
}
changedFaces = edgeToFace(changedEdges);
if (debug)
{
Info<< "From changedEdges:" << changedEdges.size()
<< " to changedFaces:" << changedFaces.size()
<< endl;
}
if (changedEdges.empty())
{
break;
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::patchZones::patchZones
(
const primitivePatch& pp,
const boolList& borderEdge
)
:
labelList(pp.size(), -1),
pp_(pp),
borderEdge_(borderEdge),
nZones_(0)
{
// Finds areas delimited by borderEdge (or 'real' edges).
// Fills *this with zone number accordingly.
if (borderEdge.size() != pp_.nEdges())
{
FatalErrorInFunction
<< "borderEdge boolList not same size as number of edges" << endl
<< "borderEdge:" << borderEdge.size() << endl
<< "nEdges :" << pp_.nEdges()
<< abort(FatalError);
}
label facei = 0;
while (true)
{
// Find first non-visited face
for (; facei < pp_.size(); facei++)
{
if (operator[](facei) == -1)
{
operator[](facei) = nZones_;
markZone(facei);
break;
}
}
if (facei == pp_.size())
{
// Finished.
break;
}
nZones_++;
}
}
// ************************************************************************* //