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Creation of OpenFOAM-dev repository 15/04/2008

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OpenFOAM-admin
2008-04-15 18:56:58 +01:00
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applications/utilities/surface/surfaceFind/surfaceFind.C Normal file
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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2007 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
Description
Finds nearest triangle and vertex.
\*---------------------------------------------------------------------------*/
#include "triSurface.H"
#include "argList.H"
#include "OFstream.H"
#ifndef namespaceFoam
#define namespaceFoam
using namespace Foam;
#endif
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
// Main program:
int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.clear();
argList::validOptions.insert("x", "X");
argList::validOptions.insert("y", "Y");
argList::validOptions.insert("z", "Z");
argList::validArgs.append("surface file");
argList args(argc, argv);
scalar x(readScalar(IStringStream(args.options()["x"])()));
scalar y(readScalar(IStringStream(args.options()["y"])()));
scalar z(readScalar(IStringStream(args.options()["z"])()));
point samplePt(x, y, z);
Info<< "Looking for nearest face/vertex to " << samplePt << endl;
Info<< "Reading surf1 ..." << endl;
triSurface surf1(args.additionalArgs()[0]);
//
// 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:" << endl
<< " index :" << minIndex << " (in localPoints)" << endl
<< " index :" << surf1.meshPoints()[minIndex]
<< " (in points)" << endl
<< " coordinates:" << localPoints[minIndex] << endl
<< endl;
//
// Nearest face
//
const pointField& points = surf1.points();
minIndex = -1;
minDist = GREAT;
forAll(surf1, faceI)
{
const labelledTri& f = surf1[faceI];
const point centre = f.centre(points);
const scalar dist = mag(centre - samplePt);
if (dist < minDist)
{
minDist = dist;
minIndex = faceI;
}
}
const labelledTri& f = surf1[minIndex];
Info<< "Face with nearest centre:" << endl
<< " index :" << minIndex << endl
<< " centre :" << f.centre(points) << endl
<< " face :" << f << endl
<< " vertex coords:" << points[f[0]] << " "
<< points[f[1]] << " " << points[f[2]] << endl
<< endl;
Info << "End\n" << endl;
return 0;
}
// ************************************************************************* //