| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / 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/>. | |
| \*---------------------------------------------------------------------------*/ | |
| // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * // | |
| namespace Foam | |
| { | |
| namespace sampledSets | |
| { | |
| defineTypeNameAndDebug(circleRandom, 0); | |
| addToRunTimeSelectionTable(sampledSet, circleRandom, word); | |
| } | |
| } | |
| // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * // | |
| bool Foam::sampledSets::circleRandom::calcSamples | |
| ( | |
| DynamicList<point>& samplingPositions, | |
| DynamicList<scalar>&, | |
| DynamicList<label>& samplingSegments, | |
| DynamicList<label>& samplingCells, | |
| DynamicList<label>& samplingFaces | |
| ) const | |
| { | |
| const meshSearch& searchEngine = meshSearch::New(mesh()); | |
| randomGenerator rndGen(261782, true); | |
| const vector radial1 = normalised(perpendicular(normal_)); | |
| const vector radial2 = normalised(normal_ ^ radial1); | |
| for (label i = 0; i < nPoints_; ++ i) | |
| { | |
| // Request all random numbers simultaneously on all processors so that | |
| // the generator state stays consistent | |
| const scalar r = radius_*rndGen.scalar01(); | |
| const scalar theta = 2*constant::mathematical::pi*rndGen.scalar01(); | |
| const scalar c = cos(theta), s = sin(theta); | |
| const point pt = centre_ + r*(c*radial1 + s*radial2); | |
| const label celli = searchEngine.findCell(pt); | |
| if (celli != -1) | |
| { | |
| samplingPositions.append(pt); | |
| samplingSegments.append(i); | |
| samplingCells.append(celli); | |
| samplingFaces.append(-1); | |
| } | |
| } | |
| // This set is unordered. Distances have not been created. | |
| return false; | |
| } | |
| // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // | |
| Foam::sampledSets::circleRandom::circleRandom | |
| ( | |
| const word& name, | |
| const polyMesh& mesh, | |
| const dictionary& dict | |
| ) | |
| : | |
| sampledSet(name, mesh, dict), | |
| centre_(dict.lookup("centre")), | |
| normal_(normalised(dict.lookup<vector>("normal"))), | |
| radius_(dict.lookup<scalar>("radius")), | |
| nPoints_(dict.lookup<label>("nPoints")) | |
| {} | |
| // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * // | |
| Foam::sampledSets::circleRandom::~circleRandom() | |
| {} | |
| // ************************************************************************* // | |