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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2025 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 "polyMesh.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::polyMesh::initMesh()
{
DebugInFunction << "Initialising primitiveMesh" << endl;
// For backward compatibility check if the neighbour array is the same
// length as the owner and shrink to remove the -1s padding
if (neighbour_.size() == owner_.size())
{
label nInternalFaces = 0;
forAll(neighbour_, facei)
{
if (neighbour_[facei] == -1)
{
break;
}
else
{
nInternalFaces++;
}
}
neighbour_.setSize(nInternalFaces);
}
label nCells = -1;
forAll(owner_, facei)
{
if (owner_[facei] < 0)
{
FatalErrorInFunction
<< "Illegal cell label " << owner_[facei]
<< " in neighbour addressing for face " << facei
<< exit(FatalError);
}
nCells = max(nCells, owner_[facei]);
}
// The neighbour array may or may not be the same length as the owner
forAll(neighbour_, facei)
{
if (neighbour_[facei] < 0)
{
FatalErrorInFunction
<< "Illegal cell label " << neighbour_[facei]
<< " in neighbour addressing for face " << facei
<< exit(FatalError);
}
nCells = max(nCells, neighbour_[facei]);
}
nCells++;
// Reset the primitiveMesh with the sizes of the primitive arrays
primitiveMesh::reset
(
points_.size(),
neighbour_.size(),
owner_.size(),
nCells
);
string meshInfo =
"nPoints:" + Foam::name(nPoints())
+ " nCells:" + Foam::name(this->nCells())
+ " nFaces:" + Foam::name(nFaces())
+ " nInternalFaces:" + Foam::name(nInternalFaces());
owner_.note() = meshInfo;
neighbour_.note() = meshInfo;
}
void Foam::polyMesh::initMesh(cellList& c)
{
DebugInFunction << "Calculating owner-neighbour arrays" << endl;
owner_.setSize(faces_.size(), -1);
neighbour_.setSize(faces_.size(), -1);
boolList markedFaces(faces_.size(), false);
label nInternalFaces = 0;
forAll(c, celli)
{
// get reference to face labels for current cell
const labelList& cellfaces = c[celli];
forAll(cellfaces, facei)
{
if (cellfaces[facei] < 0)
{
FatalErrorInFunction
<< "Illegal face label " << cellfaces[facei]
<< " in cell " << celli
<< exit(FatalError);
}
if (!markedFaces[cellfaces[facei]])
{
// First visit: owner
owner_[cellfaces[facei]] = celli;
markedFaces[cellfaces[facei]] = true;
}
else
{
// Second visit: neighbour
neighbour_[cellfaces[facei]] = celli;
nInternalFaces++;
}
}
}
// The neighbour array is initialised with the same length as the owner
// padded with -1s and here it is truncated to the correct size of the
// number of internal faces.
neighbour_.setSize(nInternalFaces);
// Reset the primitiveMesh
primitiveMesh::reset
(
points_.size(),
neighbour_.size(),
owner_.size(),
c.size(),
c
);
string meshInfo =
"nPoints: " + Foam::name(nPoints())
+ " nCells: " + Foam::name(nCells())
+ " nFaces: " + Foam::name(nFaces())
+ " nInternalFaces: " + Foam::name(this->nInternalFaces());
owner_.note() = meshInfo;
neighbour_.note() = meshInfo;
}
// ************************************************************************* //
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