OpenFOAM-dev / data /src /meshTools /patchToPatch /patchToPatchExtrapolation /nearest /nearestPatchToPatchExtrapolation.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 patchToPatchExtrapolations | |
| { | |
| defineTypeNameAndDebug(nearest, 0); | |
| addToRunTimeSelectionTable(patchToPatchExtrapolation, nearest, word); | |
| } | |
| } | |
| // * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * // | |
| template<class Type> | |
| void Foam::patchToPatchExtrapolations::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 faces | |
| forAll(uncoupledFaces_, uncoupledFacei) | |
| { | |
| const label celli = uncoupledFaces_[uncoupledFacei]; | |
| fld[celli] = srcFld()[uncoupledFaceLocalFaces_[uncoupledFacei]]; | |
| } | |
| } | |
| // * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // | |
| Foam::patchToPatchExtrapolations::nearest::nearest() | |
| : | |
| patchToPatchExtrapolation(), | |
| uncoupledFaceLocalFaces_(), | |
| extrapolationMapPtr_(nullptr) | |
| {} | |
| // * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * // | |
| Foam::patchToPatchExtrapolations::nearest::~nearest() | |
| {} | |
| // * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * * // | |
| void Foam::patchToPatchExtrapolations::nearest::update | |
| ( | |
| const polyPatch& patch, | |
| const PackedBoolList& faceCoupleds | |
| ) | |
| { | |
| patchToPatchExtrapolation::update(faceCoupleds); | |
| // Quick return if nothing is to be done | |
| if (!extrapolation_) return; | |
| // Global patch-face addressing | |
| const globalIndex globalPatchFaceIndex(patch.size()); | |
| // Construct initial edges. All edges that border a coupled face are added | |
| // here. The wave will propagate everywhere for just the first iteration. | |
| // Then most paths will end and subsequent iterations will propagate only | |
| // through the uncoupled faces. This is a bit odd, but it is easier than | |
| // doing the necessary synchronisation to determine which edges lie | |
| // in-between coupled and non-coupled faces. | |
| typedef PatchEdgeFacePointData<label> info; | |
| DynamicList<label> initialEdges(patch.nEdges()); | |
| DynamicList<info> initialEdgeInfos(patch.nEdges()); | |
| forAll(patch.edgeFaces(), edgei) | |
| { | |
| forAll(patch.edgeFaces()[edgei], edgeFacei) | |
| { | |
| const label facei = patch.edgeFaces()[edgei][edgeFacei]; | |
| if (faceCoupleds[facei]) | |
| { | |
| initialEdges.append(edgei); | |
| initialEdgeInfos.append | |
| ( | |
| info | |
| ( | |
| globalPatchFaceIndex.toGlobal(facei), | |
| patch.edges()[edgei].centre(patch.localPoints()), | |
| 0 | |
| ) | |
| ); | |
| break; | |
| } | |
| } | |
| } | |
| // Wave the information about the nearby coupled faces into the un-coupled | |
| // faces. Base this wave on distance to the cut face. Initialise coupled | |
| // faces to have a distance of zero, so that we do not waste time waving | |
| // into coupled regions of the patch. | |
| List<info> edgeInfos(patch.nEdges()), faceInfos(patch.size()); | |
| forAll(faceCoupleds, facei) | |
| { | |
| if (faceCoupleds[facei]) | |
| { | |
| faceInfos[facei] = | |
| info | |
| ( | |
| globalPatchFaceIndex.toGlobal(facei), | |
| patch.faceCentres()[facei], | |
| 0 | |
| ); | |
| } | |
| } | |
| PatchEdgeFaceWave<primitivePatch, info> wave | |
| ( | |
| patch.mesh(), | |
| patch, | |
| initialEdges, | |
| initialEdgeInfos, | |
| edgeInfos, | |
| faceInfos, | |
| returnReduce(patch.nEdges(), sumOp()) | |
| ); | |
| // Check that the wave connected to all un-mapped faces | |
| forAll(faceCoupleds, facei) | |
| { | |
| if (!faceCoupleds[facei] && !faceInfos[facei].valid(wave.data())) | |
| { | |
| FatalErrorInFunction | |
| << "Un-mapped face " << facei << " of patch " << patch.name() | |
| << " on processor " << Pstream::myProcNo() << " with centre " | |
| << "at " << patch.faceCentres()[facei] << " was not connected " | |
| << "to a mapped cell by the extrapolation wave. This " | |
| << "indicates that an entire non-contiguous region of patch " | |
| << "lies outside of the other patch being mapped to. This is " | |
| << "not recoverable." << exit(FatalError); | |
| } | |
| } | |
| // Construct the cell to local extrapolation cell map | |
| uncoupledFaceLocalFaces_.resize(uncoupledFaces_.size()); | |
| forAll(uncoupledFaces_, uncoupledFacei) | |
| { | |
| const label facei = uncoupledFaces_[uncoupledFacei]; | |
| uncoupledFaceLocalFaces_[uncoupledFacei] = faceInfos[facei].data(); | |
| } | |
| // Construct the distribution map, if necessary | |
| if (Pstream::parRun()) | |
| { | |
| List<Map<label>> compactMap; | |
| extrapolationMapPtr_.reset | |
| ( | |
| new distributionMap | |
| ( | |
| globalPatchFaceIndex, | |
| uncoupledFaceLocalFaces_, | |
| compactMap | |
| ) | |
| ); | |
| } | |
| // Write out connections | |
| if (debug) | |
| { | |
| OBJstream obj | |
| ( | |
| typeName + "_" + patch.name() | |
| + (Pstream::parRun() ? "_proc" + name(Pstream::myProcNo()) : "") | |
| + "_connections.obj" | |
| ); | |
| const pointField fcs(patch.faceCentres()); | |
| pointField sfcs(fcs); | |
| extrapolate(sfcs); | |
| forAll(fcs, celli) | |
| { | |
| const point& c = fcs[celli]; | |
| if (magSqr(c - fcs[celli]) == 0) continue; | |
| obj.write(linePointRef(fcs[celli], c)); | |
| } | |
| } | |
| } | |
| FOR_ALL_FIELD_TYPES(implementExtrapolateType); | |
| // ************************************************************************* // | |