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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/>.
Application
mshToFoam
Description
Converts .msh file generated by the Adventure system.
Note: the .msh format does not contain any boundary information. It is
purely a description of the internal mesh.
Can read both linear-tet format (i.e. 4 verts per tet) and linear-hex
format (8 verts per hex) (if provided with the -hex (at your option)
(Note: will bomb out if not supplied with the correct option for the
file format)
Not extensively tested.
\*---------------------------------------------------------------------------*/
#include "argList.H"
#include "Time.H"
#include "polyMesh.H"
#include "IFstream.H"
#include "polyPatch.H"
#include "ListOps.H"
#include "cellModeller.H"
#include <fstream>
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.append(".msh file");
argList::addBoolOption
(
"hex",
"treat input as containing hex instead of tet cells"
);
#include "setRootCase.H"
#include "createTime.H"
const bool readHex = args.optionFound("hex");
IFstream mshStream(args[1]);
label nCells;
mshStream >> nCells;
if (readHex)
{
Info<< "Trying to read " << nCells << " hexes." << nl << endl;
}
else
{
Info<< "Trying to read " << nCells << " tets." << nl << endl;
}
cellShapeList cells(nCells);
const cellModel& tet = *(cellModeller::lookup("tet"));
const cellModel& hex = *(cellModeller::lookup("hex"));
labelList tetPoints(4);
labelList hexPoints(8);
if (readHex)
{
for (label celli = 0; celli < nCells; celli++)
{
for (label cp = 0; cp < 8; cp++)
{
mshStream >> hexPoints[cp];
}
cells[celli] = cellShape(hex, hexPoints);
}
}
else
{
for (label celli = 0; celli < nCells; celli++)
{
for (label cp = 0; cp < 4; cp++)
{
mshStream >> tetPoints[cp];
}
cells[celli] = cellShape(tet, tetPoints);
}
}
label nPoints;
mshStream >> nPoints;
Info<< "Trying to read " << nPoints << " points." << endl << endl;
pointField points(nPoints);
for (label pointi = 0; pointi < nPoints; pointi++)
{
scalar x, y, z;
mshStream >> x >> y >> z;
points[pointi] = point(x, y, z);
}
polyMesh mesh
(
IOobject
(
polyMesh::defaultRegion,
runTime.constant(),
runTime
),
xferMove(points),
cells,
faceListList(0),
wordList(0),
wordList(0),
"defaultFaces",
polyPatch::typeName,
wordList(0)
);
Info<< "Writing mesh ..." << endl;
mesh.write();
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //
|
