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