117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2007-2009 OpenCFD Ltd.
|
|
\\/ 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 2 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, write to the Free Software Foundation,
|
|
Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
Application
|
|
CV2DMesher
|
|
|
|
Description
|
|
Conformal-Voronoi 2D automatic mesher with grid or read initial points
|
|
and point position relaxation with optional "squarification".
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#include "CV2D.H"
|
|
#include "argList.H"
|
|
#include "IFstream.H"
|
|
|
|
using namespace Foam;
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
// Main program:
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
argList::noParallel();
|
|
argList::validArgs.clear();
|
|
argList::validArgs.append("surface");
|
|
argList::validOptions.insert("pointsFile", "<filename>");
|
|
|
|
argList args(argc, argv);
|
|
|
|
// Read control dictionary
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~
|
|
dictionary controlDict(IFstream(args.executable() + "Dict")());
|
|
|
|
label nIterations(readLabel(controlDict.lookup("nIterations")));
|
|
|
|
|
|
// Read the surface to conform to
|
|
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
querySurface surf(args.args()[1]);
|
|
surf.writeTreeOBJ();
|
|
|
|
Info<< nl
|
|
<< "Read surface with " << surf.size() << " triangles from file "
|
|
<< args.args()[1] << nl << endl;
|
|
|
|
|
|
// Read and triangulation
|
|
// ~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
CV2D mesh(controlDict, surf);
|
|
if (args.options().found("pointsFile"))
|
|
{
|
|
fileName pointFileName(IStringStream(args.options()["pointsFile"])());
|
|
mesh.insertPoints(pointFileName);
|
|
mesh.insertSurfacePointPairs();
|
|
mesh.boundaryConform();
|
|
}
|
|
else
|
|
{
|
|
mesh.insertGrid();
|
|
mesh.insertSurfacePointPairs();
|
|
mesh.boundaryConform();
|
|
}
|
|
|
|
for (int iter=1; iter<=nIterations; iter++)
|
|
{
|
|
Info<< nl
|
|
<< "Relaxation iteration " << iter << nl
|
|
<< "~~~~~~~~~~~~~~~~~~~~~~~~" << endl;
|
|
|
|
scalar relax =
|
|
mesh.meshingControls().relaxationFactorStart
|
|
+
|
|
(
|
|
mesh.meshingControls().relaxationFactorEnd
|
|
- mesh.meshingControls().relaxationFactorStart
|
|
)
|
|
*scalar(iter)/scalar(nIterations);
|
|
|
|
mesh.newPoints(relax);
|
|
mesh.removeSurfacePointPairs();
|
|
mesh.insertSurfacePointPairs();
|
|
mesh.boundaryConform();
|
|
}
|
|
|
|
mesh.write();
|
|
|
|
Info<< nl << "End\n" << endl;
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|