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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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/>.
\*---------------------------------------------------------------------------*/
#include "arcUniform.H"
#include "sampledSet.H"
#include "DynamicList.H"
#include "polyMesh.H"
#include "addToRunTimeSelectionTable.H"
#include "word.H"
#include "points.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace sampledSets
{
defineTypeNameAndDebug(arcUniform, 0);
addToRunTimeSelectionTable(sampledSet, arcUniform, word);
}
}
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
bool Foam::sampledSets::arcUniform::calcSamples
(
DynamicList<point>& samplingPositions,
DynamicList<scalar>& samplingDistances,
DynamicList<label>& samplingSegments,
DynamicList<label>& samplingCells,
DynamicList<label>& samplingFaces
) const
{
// Get the coordinate system
const vector axis1 = radial_ - (radial_ & normal_)*normal_;
const vector axis2 = normal_ ^ axis1;
const scalar radius = mag(axis1);
// Compute all point locations
const scalarField ts(linearSequence01(nPoints_));
const scalarField theta((1 - ts)*startAngle_ + ts*endAngle_);
const scalarField c(cos(theta)), s(sin(theta));
const pointField points(centre_ + c*axis1 + s*axis2);
// Calculate the sampling topology
points::calcSamples
(
mesh(),
points,
samplingPositions,
samplingDistances,
samplingSegments,
samplingCells,
samplingFaces
);
// Overwrite the distances
forAll(samplingPositions, i)
{
const vector v = samplingPositions[i] - centre_;
const scalar theta = atan2(v & axis2, v & axis1);
samplingDistances[i] = radius*theta;
}
// This set is ordered. Distances have been created.
return true;
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::sampledSets::arcUniform::arcUniform
(
const word& name,
const polyMesh& mesh,
const dictionary& dict
)
:
sampledSet(name, mesh, dict),
centre_(dict.lookup("centre")),
normal_(normalised(dict.lookup<vector>("normal"))),
radial_(dict.lookup<vector>("radial")),
startAngle_(dict.lookup<scalar>("startAngle")),
endAngle_(dict.lookup<scalar>("endAngle")),
nPoints_(dict.lookup<scalar>("nPoints"))
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::sampledSets::arcUniform::~arcUniform()
{}
// ************************************************************************* //
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