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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2016 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
surfaceFind
Description
Finds nearest face and vertex.
\*---------------------------------------------------------------------------*/
#include "argList.H"
#include "OFstream.H"
#include "MeshedSurfaces.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.append("surfaceFile");
argList::addOption("x", "X", "The point x-coordinate (if non-zero)");
argList::addOption("y", "Y", "The point y-coordinate (if non-zero)");
argList::addOption("z", "Z", "The point y-coordinate (if non-zero)");
argList args(argc, argv);
const point samplePt
(
args.optionLookupOrDefault<scalar>("x", 0),
args.optionLookupOrDefault<scalar>("y", 0),
args.optionLookupOrDefault<scalar>("z", 0)
);
Info<< "Looking for nearest face/vertex to " << samplePt << endl;
Info<< "Reading surf ..." << endl;
meshedSurface surf1(args[1]);
//
// Nearest vertex
//
const pointField& localPoints = surf1.localPoints();
label minIndex = -1;
scalar minDist = GREAT;
forAll(localPoints, pointi)
{
const scalar dist = mag(localPoints[pointi] - samplePt);
if (dist < minDist)
{
minDist = dist;
minIndex = pointi;
}
}
Info<< "Nearest vertex:" << nl
<< " index :" << minIndex << " (in localPoints)" << nl
<< " index :" << surf1.meshPoints()[minIndex]
<< " (in points)" << nl
<< " coordinates:" << localPoints[minIndex] << nl
<< endl;
//
// Nearest face
//
const pointField& points = surf1.points();
minIndex = -1;
minDist = GREAT;
forAll(surf1, facei)
{
const point centre = surf1[facei].centre(points);
const scalar dist = mag(centre - samplePt);
if (dist < minDist)
{
minDist = dist;
minIndex = facei;
}
}
const face& f = surf1[minIndex];
Info<< "Face with nearest centre:" << nl
<< " index :" << minIndex << nl
<< " centre :" << f.centre(points) << nl
<< " face :" << f << nl
<< " vertex coords:\n";
forAll(f, fp)
{
Info<< " " << points[f[fp]] << "\n";
}
Info<< endl;
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //
|
