OpenFOAM-dev / data /src /meshTools /cellsToCells /cellsToCellsExtrapolation /nearest /nearestCellsToCellsExtrapolation.C
| /*---------------------------------------------------------------------------*\ | |
| ========= | | |
| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox | |
| \\ / O peration | Website: https://openfoam.org | |
| \\ / A nd | Copyright (C) 2023-2026 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 cellsToCellsExtrapolations | |
| { | |
| defineTypeNameAndDebug(nearest, 0); | |
| addToRunTimeSelectionTable(cellsToCellsExtrapolation, nearest, word); | |
| } | |
| } | |
| // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * // | |
| template<class Type> | |
| void Foam::cellsToCellsExtrapolations::nearest::extrapolateType | |
| ( | |
| Field<Type>& fld | |
| ) const | |
| { | |
| if (!extrapolation_) return; | |
| // Communicate remote field values as necessary | |
| tmp<Field<Type>> srcFld; | |
| if (Pstream::parRun()) | |
| { | |
| srcFld = fld.clone(); | |
| extrapolationMapPtr_->distribute(srcFld.ref()); | |
| } | |
| else | |
| { | |
| srcFld = tmp<Field<Type>>(fld); | |
| } | |
| // Set the values in the uncoupled cells | |
| forAll(uncoupledCells_, uncoupledCelli) | |
| { | |
| const label celli = uncoupledCells_[uncoupledCelli]; | |
| fld[celli] = srcFld()[uncoupledCellLocalCells_[uncoupledCelli]]; | |
| } | |
| } | |
| // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // | |
| Foam::cellsToCellsExtrapolations::nearest::nearest() | |
| : | |
| cellsToCellsExtrapolation(), | |
| uncoupledCellLocalCells_(), | |
| extrapolationMapPtr_(nullptr) | |
| {} | |
| // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * // | |
| Foam::cellsToCellsExtrapolations::nearest::~nearest() | |
| {} | |
| // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * // | |
| void Foam::cellsToCellsExtrapolations::nearest::update | |
| ( | |
| const polyMesh& mesh, | |
| const PackedBoolList& cellCoupleds | |
| ) | |
| { | |
| cellsToCellsExtrapolation::update(cellCoupleds); | |
| // Quick return if nothing is to be done | |
| if (!extrapolation_) return; | |
| // Global cell addressing | |
| const globalIndex globalCellIndex(mesh.nCells()); | |
| // Get the list of faces which separate regions which do and do not need | |
| // extrapolation. For each face, also get the global index of the adjacent | |
| // cell which is coupled. | |
| labelList cutFaces, cutFacesCoupledCells; | |
| getCutFaces | |
| ( | |
| mesh, | |
| cellCoupleds, | |
| globalCellIndex, | |
| cutFaces, | |
| cutFacesCoupledCells | |
| ); | |
| // Wave the information about the cut faces' connected coupled cells into | |
| // the un-coupled cells. Base this wave on distance to the cut face. | |
| // Initialise coupled cells to have a distance of zero, so that we do not | |
| // waste time waving into coupled regions of the mesh. | |
| typedef WallInfo<WallLocationData<wallPoint, label>> info; | |
| List<info> cutFaceInfos(cutFaces.size()); | |
| forAll(cutFaces, cutFacei) | |
| { | |
| cutFaceInfos[cutFacei] = | |
| info | |
| ( | |
| cutFacesCoupledCells[cutFacei], | |
| mesh.faceCentres()[cutFaces[cutFacei]], | |
| 0 | |
| ); | |
| } | |
| List<info> faceInfos(mesh.nFaces()), cellInfos(mesh.nCells()); | |
| forAll(cellCoupleds, celli) | |
| { | |
| if (cellCoupleds[celli]) | |
| { | |
| cellInfos[celli] = | |
| info | |
| ( | |
| globalCellIndex.toGlobal(celli), | |
| mesh.cellCentres()[celli], | |
| 0 | |
| ); | |
| } | |
| } | |
| FaceCellWave<info> wave | |
| ( | |
| mesh, | |
| cutFaces, | |
| cutFaceInfos, | |
| faceInfos, | |
| cellInfos, | |
| mesh.globalData().nTotalCells() + 1 // max iterations | |
| ); | |
| // Check that the wave connected to all un-coupled cells | |
| forAll(uncoupledCells_, uncoupledCelli) | |
| { | |
| const label celli = uncoupledCells_[uncoupledCelli]; | |
| if (!cellInfos[celli].valid(wave.data())) | |
| { | |
| FatalErrorInFunction | |
| << "Un-coupled cell " << celli << " of mesh " << mesh.name() | |
| << " on processor " << Pstream::myProcNo() << " with centre " | |
| << "at " << mesh.cellCentres()[celli] << " was not connected " | |
| << "to a coupled cell by the extrapolation wave. This " | |
| << "indicates that an entire non-contiguous region of mesh " | |
| << "lies outside of the other mesh being mapped to. This is " | |
| << "not recoverable." << exit(FatalError); | |
| } | |
| } | |
| // Construct the cell to local extrapolation cell map | |
| uncoupledCellLocalCells_.resize(uncoupledCells_.size()); | |
| forAll(uncoupledCells_, uncoupledCelli) | |
| { | |
| const label celli = uncoupledCells_[uncoupledCelli]; | |
| uncoupledCellLocalCells_[uncoupledCelli] = cellInfos[celli].data(); | |
| } | |
| // Construct the distribution map, if necessary | |
| if (Pstream::parRun()) | |
| { | |
| List<Map<label>> compactMap; | |
| extrapolationMapPtr_.reset | |
| ( | |
| new distributionMap | |
| ( | |
| globalCellIndex, | |
| uncoupledCellLocalCells_, | |
| compactMap | |
| ) | |
| ); | |
| } | |
| // Write out connections | |
| if (debug) | |
| { | |
| OBJstream obj | |
| ( | |
| typeName + "_" + mesh.name() | |
| + (Pstream::parRun() ? "_proc" + name(Pstream::myProcNo()) : "") | |
| + "_connections.obj" | |
| ); | |
| pointField ccs(mesh.cellCentres()); | |
| extrapolate(ccs); | |
| forAll(ccs, celli) | |
| { | |
| const point& c = mesh.cellCentres()[celli]; | |
| if (magSqr(c - ccs[celli]) == 0) continue; | |
| obj.write(linePointRef(ccs[celli], c)); | |
| } | |
| } | |
| } | |
| FOR_ALL_FIELD_TYPES(implementExtrapolateType); | |
| // ************************************************************************* // | |