Commit 6520f35f authored by mattijs's avatar mattijs
Browse files

nearestToPoint

parent 606516d8
......@@ -107,6 +107,7 @@ $(pointSources)/faceToPoint/faceToPoint.C
$(pointSources)/boxToPoint/boxToPoint.C
$(pointSources)/surfaceToPoint/surfaceToPoint.C
$(pointSources)/zoneToPoint/zoneToPoint.C
$(pointSources)/nearestToPoint/nearestToPoint.C
surfaceSets/surfaceSets.C
......
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2008 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
\*---------------------------------------------------------------------------*/
#include "nearestToPoint.H"
#include "polyMesh.H"
#include "meshSearch.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(nearestToPoint, 0);
addToRunTimeSelectionTable(topoSetSource, nearestToPoint, word);
addToRunTimeSelectionTable(topoSetSource, nearestToPoint, istream);
}
Foam::topoSetSource::addToUsageTable Foam::nearestToPoint::usage_
(
nearestToPoint::typeName,
"\n Usage: nearestToPoint (pt0 .. ptn)\n\n"
" Select the nearest point for each of the points pt0 ..ptn\n\n"
);
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
void Foam::nearestToPoint::combine(topoSet& set, const bool add) const
{
// Do linear search since usually just a few points.
forAll(points_, pointI)
{
const pointField& pts = mesh_.points();
if (pts.size() > 0)
{
label minPointI = 0;
scalar minDistSqr = magSqr(pts[minPointI] - points_[pointI]);
for (label i = 1; i < pts.size(); i++)
{
scalar distSqr = magSqr(pts[i] - points_[pointI]);
if (distSqr < minDistSqr)
{
minDistSqr = distSqr;
minPointI = i;
}
}
addOrDelete(set, minPointI, add);
}
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
// Construct from components
Foam::nearestToPoint::nearestToPoint
(
const polyMesh& mesh,
const pointField& points
)
:
topoSetSource(mesh),
points_(points)
{}
// Construct from dictionary
Foam::nearestToPoint::nearestToPoint
(
const polyMesh& mesh,
const dictionary& dict
)
:
topoSetSource(mesh),
points_(dict.lookup("points"))
{}
// Construct from Istream
Foam::nearestToPoint::nearestToPoint
(
const polyMesh& mesh,
Istream& is
)
:
topoSetSource(mesh),
points_(checkIs(is))
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::nearestToPoint::~nearestToPoint()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::nearestToPoint::applyToSet
(
const topoSetSource::setAction action,
topoSet& set
) const
{
if ((action == topoSetSource::NEW) || (action == topoSetSource::ADD))
{
Info<< " Adding points nearest to " << points_ << endl;
combine(set, true);
}
else if (action == topoSetSource::DELETE)
{
Info<< " Removing points nearest to " << points_ << endl;
combine(set, false);
}
}
// ************************************************************************* //
/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 1991-2008 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
Class
Foam::nearestToPoint
Description
A topoSetSource to select points nearest to points.
SourceFiles
nearestToPoint.C
\*---------------------------------------------------------------------------*/
#ifndef nearestToPoint_H
#define nearestToPoint_H
#include "topoSetSource.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class nearestToPoint Declaration
\*---------------------------------------------------------------------------*/
class nearestToPoint
:
public topoSetSource
{
// Private data
//- Add usage string
static addToUsageTable usage_;
//- points to select nearest to
pointField points_;
// Private Member Functions
void combine(topoSet& set, const bool add) const;
public:
//- Runtime type information
TypeName("nearestToPoint");
// Constructors
//- Construct from components
nearestToPoint
(
const polyMesh& mesh,
const pointField& points
);
//- Construct from dictionary
nearestToPoint
(
const polyMesh& mesh,
const dictionary& dict
);
//- Construct from Istream
nearestToPoint
(
const polyMesh& mesh,
Istream&
);
// Destructor
virtual ~nearestToPoint();
// Member Functions
virtual void applyToSet
(
const topoSetSource::setAction action,
topoSet&
) const;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
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