db7fac3f24
git-svn-id: https://openfoam-extend.svn.sourceforge.net/svnroot/openfoam-extend/trunk/Core/OpenFOAM-1.5-dev@1731 e4e07f05-0c2f-0410-a05a-b8ba57e0c909
130 lines
3.7 KiB
C
130 lines
3.7 KiB
C
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright held by original author
|
|
\\/ 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;
|
|
}
|
|
|
|
|
|
// ************************************************************************* //
|