checkMesh: Added writing of NCC coverage
If checkMesh is executed with the -allGeometry option, then surface files containing the NCC coverage will now be written out. Coverage is the ratio between coupled area magnitude and total area magnitude. This is useful for locating parts of the boundary mesh that are in error. Errors (such as folds and pinches) typically manifest as a coverage value that deviates significantly from a value of one. This is comparable to the writing of AMI patches's weight sums, which also used to occur when the -allGeometry option was selected.
This commit is contained in:
Will Bainbridge
@ -1,3 +1,28 @@
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/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration | Website: https://openfoam.org
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\\ / A nd | Copyright (C) 2011-2022 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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\*---------------------------------------------------------------------------*/
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#include "PatchTools.H"
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#include "checkGeometry.H"
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#include "polyMesh.H"
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@ -11,12 +36,14 @@
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#include "vtkSurfaceWriter.H"
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#include "setWriter.H"
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#include "writeFile.H"
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#include "nonConformalCyclicPolyPatch.H"
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#include "checkTools.H"
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#include "Time.H"
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// Find wedge with opposite orientation. Note: does not actually check that
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// it is opposite, only that it has opposite normal and same axis
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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Foam::label Foam::findOppositeWedge
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(
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const polyMesh& mesh,
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@ -942,5 +969,124 @@ Foam::label Foam::checkGeometry
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}
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}
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if (allGeometry)
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{
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const fileName outputPath =
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mesh.time().globalPath()
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/functionObjects::writeFile::outputPrefix
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/(mesh.name() != polyMesh::defaultRegion ? mesh.name() : word())
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/"checkMesh"
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/mesh.time().timeName();
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const polyBoundaryMesh& patches = mesh.boundaryMesh();
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// Compute coverage for all orig patches
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PtrList<scalarField> patchCoverage(patches.size());
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forAll(patches, nccPatchi)
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{
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if (isA<nonConformalCyclicPolyPatch>(patches[nccPatchi]))
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{
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const nonConformalCyclicPolyPatch& nccPp =
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refCast<const nonConformalCyclicPolyPatch>
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(patches[nccPatchi]);
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if (nccPp.owner())
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{
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const polyPatch& origPp = nccPp.origPatch();
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const polyPatch& nbrOrigPp = nccPp.nbrPatch().origPatch();
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const patchToPatches::intersection& intersection =
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nccPp.intersection();
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if (!patchCoverage.set(origPp.index()))
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{
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patchCoverage.set
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(
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origPp.index(),
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scalarField(origPp.size(), 0)
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);
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}
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patchCoverage[origPp.index()] +=
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intersection.srcCoverage();
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if (!patchCoverage.set(nbrOrigPp.index()))
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{
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patchCoverage.set
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(
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nbrOrigPp.index(),
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scalarField(nbrOrigPp.size(), 0)
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);
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}
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patchCoverage[nbrOrigPp.index()] +=
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intersection.tgtCoverage();
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}
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}
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}
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// Write out to surface files
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forAll(patches, patchi)
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{
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if (patchCoverage.set(patchi))
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{
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const polyPatch& patch = patches[patchi];
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// Collect the patch geometry
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labelList pointToGlobal;
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labelList uniqueMeshPointLabels;
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autoPtr<globalIndex> globalPoints;
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autoPtr<globalIndex> globalFaces;
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faceList mergedFaces;
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pointField mergedPoints;
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Foam::PatchTools::gatherAndMerge
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(
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mesh,
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patch.localFaces(),
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patch.meshPoints(),
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patch.meshPointMap(),
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pointToGlobal,
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uniqueMeshPointLabels,
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globalPoints,
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globalFaces,
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mergedFaces,
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mergedPoints
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);
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// Collect the patch coverage
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scalarField mergedCoverage;
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globalFaces().gather
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(
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UPstream::worldComm,
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labelList(UPstream::procID(UPstream::worldComm)),
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patchCoverage[patchi],
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mergedCoverage
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);
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// Write the surface
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if (Pstream::master())
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{
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vtkSurfaceWriter
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(
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mesh.time().writeFormat(),
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mesh.time().writeCompression()
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).write
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(
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outputPath,
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patch.name() + "_coverage",
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mergedPoints,
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mergedFaces,
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false,
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"coverage",
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mergedCoverage
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);
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}
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}
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}
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}
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return noFailedChecks;
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}
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// ************************************************************************* //
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