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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011 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
graphTest
Description
Test program for making graphs
\*---------------------------------------------------------------------------*/
#include "graph.H"
#include "OFstream.H"
#include "mathematicalConstants.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main()
{
scalarField x(100);
scalarField r(x.size());
forAll(x, i)
{
x[i] = -3 + 0.06*i;
}
scalarField b(0.5*(1.0 + erf(x)));
scalarField c(1.0 - b);
scalarField gradb((1/::sqrt(constant::mathematical::pi))*exp(-sqr(x)));
scalarField lapb(-2*x*gradb);
r = lapb*b*c/(gradb*gradb);
graph("r", "x", "r", x, r).write("r", "xmgr");
Info<< "end" << endl;
return 0;
}
// ************************************************************************* //
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