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foam-extend4.1-coherent-io/applications/utilities/surface/surfaceRefineRedGreen/surfaceRefineRedGreen.C
2018-06-01 18:11:37 +02:00

87 lines
2.9 KiB
C++

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | foam-extend: Open Source CFD
\\ / O peration | Version: 4.1
\\ / A nd | Web: http://www.foam-extend.org
\\/ M anipulation | For copyright notice see file Copyright
-------------------------------------------------------------------------------
License
This file is part of foam-extend.
foam-extend 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.
foam-extend 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 foam-extend. If not, see <http://www.gnu.org/licenses/>.
Application
surfaceRefineRedGreen
Description
Refine by splitting all three edges of triangle ('red' refinement).
Neighbouring triangles (which are not marked for refinement get split
in half ('green') refinement. (R. Verfuerth, "A review of a posteriori
error estimation and adaptive mesh refinement techniques",
Wiley-Teubner, 1996)
\*---------------------------------------------------------------------------*/
#include "triSurface.H"
#include "triSurfaceTools.H"
#include "argList.H"
#include "OFstream.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Main program:
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.clear();
argList::validArgs.append("surface file");
argList::validArgs.append("output surface file");
argList args(argc, argv);
fileName surfFileName(args.additionalArgs()[0]);
fileName outFileName(args.additionalArgs()[1]);
Info<< "Reading surface from " << surfFileName << " ..." << endl;
triSurface surf1(surfFileName);
// Refine
triSurface surf2 = triSurfaceTools::redGreenRefine
(
surf1,
identity(surf1.size()) //Hack: refine all
);
Info<< "Original surface:" << endl
<< " triangles :" << surf1.size() << endl
<< " vertices(used):" << surf1.nPoints() << endl
<< "Refined surface:" << endl
<< " triangles :" << surf2.size() << endl
<< " vertices(used):" << surf2.nPoints() << endl << endl;
Info<< "Writing refined surface to " << outFileName << " ..." << endl;
surf2.write(outFileName);
Info << "End\n" << endl;
return 0;
}
// ************************************************************************* //