143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2019 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Application
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surfaceFind
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Description
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Finds nearest face and vertex.
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\*---------------------------------------------------------------------------*/
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#include "argList.H"
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#include "OFstream.H"
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#include "MeshedSurfaces.H"
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using namespace Foam;
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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#include "removeCaseOptions.H"
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argList::validArgs.append("surface file");
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argList::addOption("x", "X", "The point x-coordinate (if non-zero)");
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argList::addOption("y", "Y", "The point y-coordinate (if non-zero)");
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argList::addOption("z", "Z", "The point y-coordinate (if non-zero)");
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argList args(argc, argv);
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const point samplePt
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(
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args.optionLookupOrDefault<scalar>("x", 0),
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args.optionLookupOrDefault<scalar>("y", 0),
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args.optionLookupOrDefault<scalar>("z", 0)
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);
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Info<< "Looking for nearest face/vertex to " << samplePt << endl;
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Info<< "Reading surf ..." << endl;
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meshedSurface surf1(args[1]);
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//
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// Nearest vertex
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//
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const pointField& localPoints = surf1.localPoints();
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label minIndex = -1;
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scalar minDist = great;
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forAll(localPoints, pointi)
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{
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const scalar dist = mag(localPoints[pointi] - samplePt);
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if (dist < minDist)
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{
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minDist = dist;
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minIndex = pointi;
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}
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}
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Info<< "Nearest vertex:" << nl
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<< " index : " << minIndex << " (in localPoints)" << nl
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<< " index : " << surf1.meshPoints()[minIndex]
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<< " (in points)" << nl
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<< " coordinates: " << localPoints[minIndex] << nl
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<< endl;
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//
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// Nearest face
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//
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const pointField& points = surf1.points();
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minIndex = -1;
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minDist = great;
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forAll(surf1, facei)
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{
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const pointHit hit =
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surf1[facei].nearestPoint(samplePt, points);
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if (hit.distance() < minDist)
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{
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minDist = hit.distance();;
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minIndex = facei;
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}
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}
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const face& f = surf1[minIndex];
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Info<< "Nearest face:" << nl
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<< " index : " << minIndex << nl
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<< " centre : " << f.centre(points) << nl
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<< " face : " << f << nl
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<< " vertex coords:" << endl;
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forAll(f, fp)
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{
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Info<< " " << points[f[fp]] << nl;
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}
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const List<surfZone>& surfZones = surf1.surfZones();
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label surfZone = -1;
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forAll(surfZones, zonei)
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{
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if (minIndex >= surfZones[zonei].start())
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{
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surfZone = zonei;
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}
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}
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Info<< " zone/region : " << surfZone << endl;
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Info<< endl;
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Info<< "End\n" << endl;
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return 0;
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}
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// ************************************************************************* //
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