openfoam/applications/utilities/surface/surfaceRefineRedGreen/surfaceRefineRedGreen.C
Mark Olesen 51b2490258 ENH: additional options for transformPoints and surfaceRefineRedGreen
- add -recentre option to shift points according to the bounding box
  centre before performing other operations

- add -auto-origin to use the bounding box centre as the origin for
  rotations. Has lower priority than the -origin option.

- surfaceTransformPoints now has distinct -read-scale, -write-scale
  options (as per surfaceMeshConvert). Silently accepts -scale as
  equivalent to -write-scale, for backwards compatibility and
  similarity with transformPoints

- add -steps option for surfaceRefineRedGreen for successive
  refinement
2020-10-22 14:59:12 +02:00

121 lines
3.4 KiB
C

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | www.openfoam.com
\\/ M anipulation |
-------------------------------------------------------------------------------
Copyright (C) 2011-2013 OpenFOAM Foundation
Copyright (C) 2020 OpenCFD Ltd.
-------------------------------------------------------------------------------
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.
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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
surfaceRefineRedGreen
Group
grpSurfaceUtilities
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).
Reference:
\verbatim
R. Verfuerth, "A review of a posteriori
error estimation and adaptive mesh refinement techniques",
Wiley-Teubner, 1996)
\endverbatim
\*---------------------------------------------------------------------------*/
#include "triSurface.H"
#include "triSurfaceTools.H"
#include "argList.H"
#include "OFstream.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
argList::addNote
(
"Refine by splitting all three edges of triangle"
);
argList::noParallel();
argList::addArgument("input", "The input surface file");
argList::addArgument("output", "The output surface file");
argList::addOption
(
"steps",
"N",
"Number of refinement steps (default: 1)"
);
argList args(argc, argv);
const fileName surfFileName(args[1]);
const fileName outFileName(args[2]);
Info<< "Reading surface from " << surfFileName << " ..." << endl;
triSurface surf(surfFileName);
Info<< "Original surface:" << nl
<< " triangles :" << surf.size() << nl
<< " vertices(used):" << surf.nPoints() << endl;
const label nsteps =
args.getCheckOrDefault<label>("steps", 1, labelMinMax::ge(1));
Info<< "Refining " << nsteps << " times" << flush;
for (label step = 0; step < nsteps; ++step)
{
Info<< '.' << flush;
surf = triSurfaceTools::redGreenRefine
(
surf,
identity(surf.size()) // Refine all
);
}
Info<< endl;
Info<< "Refined surface:" << nl
<< " triangles :" << surf.size() << nl
<< " vertices(used):" << surf.nPoints() << endl;
Info<< nl
<< "Writing refined surface to " << outFileName << " ..." << endl;
surf.write(outFileName);
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //