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cc780ca2c9119f59b9647a63c29e616fa2a1e709
openfoam/src/mesh/autoMesh/autoHexMesh/autoHexMeshDriver/autoLayerDriver.C
Henry cc780ca2c9 Correct for SP build
2013-12-22 14:05:27 +00:00

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/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2011-2013 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/>.
Description
All to do with adding cell layers
\*----------------------------------------------------------------------------*/
#include "autoLayerDriver.H"
#include "fvMesh.H"
#include "Time.H"
#include "meshRefinement.H"
#include "removePoints.H"
#include "pointFields.H"
#include "motionSmoother.H"
#include "unitConversion.H"
#include "pointSet.H"
#include "faceSet.H"
#include "cellSet.H"
#include "polyTopoChange.H"
#include "mapPolyMesh.H"
#include "addPatchCellLayer.H"
#include "mapDistributePolyMesh.H"
#include "OFstream.H"
#include "layerParameters.H"
#include "combineFaces.H"
#include "IOmanip.H"
#include "globalIndex.H"
#include "DynamicField.H"
#include "PatchTools.H"
#include "slipPointPatchFields.H"
#include "fixedValuePointPatchFields.H"
#include "calculatedPointPatchFields.H"
#include "cyclicSlipPointPatchFields.H"
#include "fixedValueFvPatchFields.H"
#include "localPointRegion.H"
#include "externalDisplacementMeshMover.H"
#include "medialAxisMeshMover.H"
#include "scalarIOField.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(autoLayerDriver, 0);
} // End namespace Foam
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
// For debugging: Dump displacement to .obj files
void Foam::autoLayerDriver::dumpDisplacement
(
const fileName& prefix,
const indirectPrimitivePatch& pp,
const vectorField& patchDisp,
const List<extrudeMode>& extrudeStatus
)
{
OFstream dispStr(prefix + "_disp.obj");
Info<< "Writing all displacements to " << dispStr.name() << endl;
label vertI = 0;
forAll(patchDisp, patchPointI)
{
const point& pt = pp.localPoints()[patchPointI];
meshTools::writeOBJ(dispStr, pt); vertI++;
meshTools::writeOBJ(dispStr, pt + patchDisp[patchPointI]); vertI++;
dispStr << "l " << vertI-1 << ' ' << vertI << nl;
}
OFstream illStr(prefix + "_illegal.obj");
Info<< "Writing invalid displacements to " << illStr.name() << endl;
vertI = 0;
forAll(patchDisp, patchPointI)
{
if (extrudeStatus[patchPointI] != EXTRUDE)
{
const point& pt = pp.localPoints()[patchPointI];
meshTools::writeOBJ(illStr, pt); vertI++;
meshTools::writeOBJ(illStr, pt + patchDisp[patchPointI]); vertI++;
illStr << "l " << vertI-1 << ' ' << vertI << nl;
}
}
}
Foam::tmp<Foam::scalarField> Foam::autoLayerDriver::avgPointData
(
const indirectPrimitivePatch& pp,
const scalarField& pointFld
)
{
tmp<scalarField> tfaceFld(new scalarField(pp.size(), 0.0));
scalarField& faceFld = tfaceFld();
forAll(pp.localFaces(), faceI)
{
const face& f = pp.localFaces()[faceI];
if (f.size())
{
forAll(f, fp)
{
faceFld[faceI] += pointFld[f[fp]];
}
faceFld[faceI] /= f.size();
}
}
return tfaceFld;
}
// Check that primitivePatch is not multiply connected. Collect non-manifold
// points in pointSet.
void Foam::autoLayerDriver::checkManifold
(
const indirectPrimitivePatch& fp,
pointSet& nonManifoldPoints
)
{
// Check for non-manifold points (surface pinched at point)
fp.checkPointManifold(false, &nonManifoldPoints);
// Check for edge-faces (surface pinched at edge)
const labelListList& edgeFaces = fp.edgeFaces();
forAll(edgeFaces, edgeI)
{
const labelList& eFaces = edgeFaces[edgeI];
if (eFaces.size() > 2)
{
const edge& e = fp.edges()[edgeI];
nonManifoldPoints.insert(fp.meshPoints()[e[0]]);
nonManifoldPoints.insert(fp.meshPoints()[e[1]]);
}
}
}
void Foam::autoLayerDriver::checkMeshManifold() const
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Checking mesh manifoldness ..." << endl;
// Get all outside faces
labelList outsideFaces(mesh.nFaces() - mesh.nInternalFaces());
for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
{
outsideFaces[faceI - mesh.nInternalFaces()] = faceI;
}
pointSet nonManifoldPoints
(
mesh,
"nonManifoldPoints",
mesh.nPoints() / 100
);
// Build primitivePatch out of faces and check it for problems.
checkManifold
(
indirectPrimitivePatch
(
IndirectList<face>(mesh.faces(), outsideFaces),
mesh.points()
),
nonManifoldPoints
);
label nNonManif = returnReduce(nonManifoldPoints.size(), sumOp<label>());
if (nNonManif > 0)
{
Info<< "Outside of mesh is multiply connected across edges or"
<< " points." << nl
<< "This is not a fatal error but might cause some unexpected"
<< " behaviour." << nl
//<< "Writing " << nNonManif
//<< " points where this happens to pointSet "
//<< nonManifoldPoints.name()
<< endl;
//nonManifoldPoints.instance() = meshRefiner_.timeName();
//nonManifoldPoints.write();
}
Info<< endl;
}
// Unset extrusion on point. Returns true if anything unset.
bool Foam::autoLayerDriver::unmarkExtrusion
(
const label patchPointI,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
)
{
if (extrudeStatus[patchPointI] == EXTRUDE)
{
extrudeStatus[patchPointI] = NOEXTRUDE;
patchNLayers[patchPointI] = 0;
patchDisp[patchPointI] = vector::zero;
return true;
}
else if (extrudeStatus[patchPointI] == EXTRUDEREMOVE)
{
extrudeStatus[patchPointI] = NOEXTRUDE;
patchNLayers[patchPointI] = 0;
patchDisp[patchPointI] = vector::zero;
return true;
}
else
{
return false;
}
}
// Unset extrusion on face. Returns true if anything unset.
bool Foam::autoLayerDriver::unmarkExtrusion
(
const face& localFace,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
)
{
bool unextruded = false;
forAll(localFace, fp)
{
if
(
unmarkExtrusion
(
localFace[fp],
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
unextruded = true;
}
}
return unextruded;
}
// No extrusion at non-manifold points.
void Foam::autoLayerDriver::handleNonManifolds
(
const indirectPrimitivePatch& pp,
const labelList& meshEdges,
const labelListList& edgeGlobalFaces,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Handling non-manifold points ..." << endl;
// Detect non-manifold points
Info<< nl << "Checking patch manifoldness ..." << endl;
pointSet nonManifoldPoints(mesh, "nonManifoldPoints", pp.nPoints());
// 1. Local check
checkManifold(pp, nonManifoldPoints);
// 2. Remote check for boundary edges on coupled boundaries
forAll(edgeGlobalFaces, edgeI)
{
if
(
pp.edgeFaces()[edgeI].size() == 1
&& edgeGlobalFaces[edgeI].size() > 2
)
{
// So boundary edges that are connected to more than 2 processors
// i.e. a non-manifold edge which is exactly on a processor
// boundary.
const edge& e = pp.edges()[edgeI];
nonManifoldPoints.insert(pp.meshPoints()[e[0]]);
nonManifoldPoints.insert(pp.meshPoints()[e[1]]);
}
}
// 3. Remote check for end of layer across coupled boundaries
{
PackedBoolList isCoupledEdge(mesh.nEdges());
const labelList& cpEdges = mesh.globalData().coupledPatchMeshEdges();
forAll(cpEdges, i)
{
isCoupledEdge[cpEdges[i]] = true;
}
syncTools::syncEdgeList
(
mesh,
isCoupledEdge,
orEqOp<unsigned int>(),
0
);
forAll(edgeGlobalFaces, edgeI)
{
label meshEdgeI = meshEdges[edgeI];
if
(
pp.edgeFaces()[edgeI].size() == 1
&& edgeGlobalFaces[edgeI].size() == 1
&& isCoupledEdge[meshEdgeI]
)
{
// Edge of patch but no continuation across processor.
const edge& e = pp.edges()[edgeI];
//Pout<< "** Stopping extrusion on edge "
// << pp.localPoints()[e[0]]
// << pp.localPoints()[e[1]] << endl;
nonManifoldPoints.insert(pp.meshPoints()[e[0]]);
nonManifoldPoints.insert(pp.meshPoints()[e[1]]);
}
}
}
label nNonManif = returnReduce(nonManifoldPoints.size(), sumOp<label>());
Info<< "Outside of local patch is multiply connected across edges or"
<< " points at " << nNonManif << " points." << endl;
if (nNonManif > 0)
{
const labelList& meshPoints = pp.meshPoints();
forAll(meshPoints, patchPointI)
{
if (nonManifoldPoints.found(meshPoints[patchPointI]))
{
unmarkExtrusion
(
patchPointI,
patchDisp,
patchNLayers,
extrudeStatus
);
}
}
}
Info<< "Set displacement to zero for all " << nNonManif
<< " non-manifold points" << endl;
}
// Parallel feature edge detection. Assumes non-manifold edges already handled.
void Foam::autoLayerDriver::handleFeatureAngle
(
const indirectPrimitivePatch& pp,
const labelList& meshEdges,
const scalar minCos,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Handling feature edges ..." << endl;
if (minCos < 1-SMALL)
{
// Normal component of normals of connected faces.
vectorField edgeNormal(mesh.nEdges(), point::max);
const labelListList& edgeFaces = pp.edgeFaces();
forAll(edgeFaces, edgeI)
{
const labelList& eFaces = pp.edgeFaces()[edgeI];
label meshEdgeI = meshEdges[edgeI];
forAll(eFaces, i)
{
nomalsCombine()
(
edgeNormal[meshEdgeI],
pp.faceNormals()[eFaces[i]]
);
}
}
syncTools::syncEdgeList
(
mesh,
edgeNormal,
nomalsCombine(),
point::max // null value
);
label vertI = 0;
autoPtr<OFstream> str;
if (debug&meshRefinement::MESH)
{
str.reset
(
new OFstream
(
mesh.time().path()
/ "featureEdges_"
+ meshRefiner_.timeName()
+ ".obj"
)
);
Info<< "Writing feature edges to " << str().name() << endl;
}
label nFeats = 0;
// Now on coupled edges the edgeNormal will have been truncated and
// only be still be the old value where two faces have the same normal
forAll(edgeFaces, edgeI)
{
const labelList& eFaces = pp.edgeFaces()[edgeI];
label meshEdgeI = meshEdges[edgeI];
const vector& n = edgeNormal[meshEdgeI];
if (n != point::max)
{
scalar cos = n & pp.faceNormals()[eFaces[0]];
if (cos < minCos)
{
const edge& e = pp.edges()[edgeI];
unmarkExtrusion
(
e[0],
patchDisp,
patchNLayers,
extrudeStatus
);
unmarkExtrusion
(
e[1],
patchDisp,
patchNLayers,
extrudeStatus
);
nFeats++;
if (str.valid())
{
meshTools::writeOBJ(str(), pp.localPoints()[e[0]]);
vertI++;
meshTools::writeOBJ(str(), pp.localPoints()[e[1]]);
vertI++;
str()<< "l " << vertI-1 << ' ' << vertI << nl;
}
}
}
}
Info<< "Set displacement to zero for points on "
<< returnReduce(nFeats, sumOp<label>())
<< " feature edges" << endl;
}
}
// No extrusion on cells with warped faces. Calculates the thickness of the
// layer and compares it to the space the warped face takes up. Disables
// extrusion if layer thickness is more than faceRatio of the thickness of
// the face.
void Foam::autoLayerDriver::handleWarpedFaces
(
const indirectPrimitivePatch& pp,
const scalar faceRatio,
const scalar edge0Len,
const labelList& cellLevel,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Handling cells with warped patch faces ..." << nl;
const pointField& points = mesh.points();
label nWarpedFaces = 0;
forAll(pp, i)
{
const face& f = pp[i];
if (f.size() > 3)
{
label faceI = pp.addressing()[i];
label ownLevel = cellLevel[mesh.faceOwner()[faceI]];
scalar edgeLen = edge0Len/(1<<ownLevel);
// Normal distance to face centre plane
const point& fc = mesh.faceCentres()[faceI];
const vector& fn = pp.faceNormals()[i];
scalarField vProj(f.size());
forAll(f, fp)
{
vector n = points[f[fp]] - fc;
vProj[fp] = (n & fn);
}
// Get normal 'span' of face
scalar minVal = min(vProj);
scalar maxVal = max(vProj);
if ((maxVal - minVal) > faceRatio * edgeLen)
{
if
(
unmarkExtrusion
(
pp.localFaces()[i],
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nWarpedFaces++;
}
}
}
}
Info<< "Set displacement to zero on "
<< returnReduce(nWarpedFaces, sumOp<label>())
<< " warped faces since layer would be > " << faceRatio
<< " of the size of the bounding box." << endl;
}
//// No extrusion on cells with multiple patch faces. There ususally is a reason
//// why combinePatchFaces hasn't succeeded.
//void Foam::autoLayerDriver::handleMultiplePatchFaces
//(
// const indirectPrimitivePatch& pp,
// pointField& patchDisp,
// labelList& patchNLayers,
// List<extrudeMode>& extrudeStatus
//) const
//{
// const fvMesh& mesh = meshRefiner_.mesh();
//
// Info<< nl << "Handling cells with multiple patch faces ..." << nl;
//
// const labelListList& pointFaces = pp.pointFaces();
//
// // Cells that should not get an extrusion layer
// cellSet multiPatchCells(mesh, "multiPatchCells", pp.size());
//
// // Detect points that use multiple faces on same cell.
// forAll(pointFaces, patchPointI)
// {
// const labelList& pFaces = pointFaces[patchPointI];
//
// labelHashSet pointCells(pFaces.size());
//
// forAll(pFaces, i)
// {
// label cellI = mesh.faceOwner()[pp.addressing()[pFaces[i]]];
//
// if (!pointCells.insert(cellI))
// {
// // Second or more occurrence of cell so cell has two or more
// // pp faces connected to this point.
// multiPatchCells.insert(cellI);
// }
// }
// }
//
// label nMultiPatchCells = returnReduce
// (
// multiPatchCells.size(),
// sumOp<label>()
// );
//
// Info<< "Detected " << nMultiPatchCells
// << " cells with multiple (connected) patch faces." << endl;
//
// label nChanged = 0;
//
// if (nMultiPatchCells > 0)
// {
// multiPatchCells.instance() = meshRefiner_.timeName();
// Info<< "Writing " << nMultiPatchCells
// << " cells with multiple (connected) patch faces to cellSet "
// << multiPatchCells.objectPath() << endl;
// multiPatchCells.write();
//
//
// // Go through all points and remove extrusion on any cell in
// // multiPatchCells
// // (has to be done in separate loop since having one point on
// // multipatches has to reset extrusion on all points of cell)
//
// forAll(pointFaces, patchPointI)
// {
// if (extrudeStatus[patchPointI] != NOEXTRUDE)
// {
// const labelList& pFaces = pointFaces[patchPointI];
//
// forAll(pFaces, i)
// {
// label cellI =
// mesh.faceOwner()[pp.addressing()[pFaces[i]]];
//
// if (multiPatchCells.found(cellI))
// {
// if
// (
// unmarkExtrusion
// (
// patchPointI,
// patchDisp,
// patchNLayers,
// extrudeStatus
// )
// )
// {
// nChanged++;
// }
// }
// }
// }
// }
//
// reduce(nChanged, sumOp<label>());
// }
//
// Info<< "Prevented extrusion on " << nChanged
// << " points due to multiple patch faces." << nl << endl;
//}
void Foam::autoLayerDriver::setNumLayers
(
const labelList& patchToNLayers,
const labelList& patchIDs,
const indirectPrimitivePatch& pp,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus,
label& nAddedCells
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl << "Handling points with inconsistent layer specification ..."
<< endl;
// Get for every point (really only necessary on patch external points)
// the max and min of any patch faces using it.
labelList maxLayers(patchNLayers.size(), labelMin);
labelList minLayers(patchNLayers.size(), labelMax);
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
const labelList& meshPoints = mesh.boundaryMesh()[patchI].meshPoints();
label wantedLayers = patchToNLayers[patchI];
forAll(meshPoints, patchPointI)
{
label ppPointI = pp.meshPointMap()[meshPoints[patchPointI]];
maxLayers[ppPointI] = max(wantedLayers, maxLayers[ppPointI]);
minLayers[ppPointI] = min(wantedLayers, minLayers[ppPointI]);
}
}
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
maxLayers,
maxEqOp<label>(),
labelMin // null value
);
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
minLayers,
minEqOp<label>(),
labelMax // null value
);
// Unmark any point with different min and max
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//label nConflicts = 0;
forAll(maxLayers, i)
{
if (maxLayers[i] == labelMin || minLayers[i] == labelMax)
{
FatalErrorIn("setNumLayers(..)")
<< "Patchpoint:" << i << " coord:" << pp.localPoints()[i]
<< " maxLayers:" << maxLayers
<< " minLayers:" << minLayers
<< abort(FatalError);
}
else if (maxLayers[i] == minLayers[i])
{
// Ok setting.
patchNLayers[i] = maxLayers[i];
}
else
{
// Inconsistent num layers between patch faces using point
//if
//(
// unmarkExtrusion
// (
// i,
// patchDisp,
// patchNLayers,
// extrudeStatus
// )
//)
//{
// nConflicts++;
//}
patchNLayers[i] = maxLayers[i];
}
}
// Calculate number of cells to create
nAddedCells = 0;
forAll(pp.localFaces(), faceI)
{
const face& f = pp.localFaces()[faceI];
// Get max of extrusion per point
label nCells = 0;
forAll(f, fp)
{
nCells = max(nCells, patchNLayers[f[fp]]);
}
nAddedCells += nCells;
}
reduce(nAddedCells, sumOp<label>());
//reduce(nConflicts, sumOp<label>());
//
//Info<< "Set displacement to zero for " << nConflicts
// << " points due to points being on multiple regions"
// << " with inconsistent nLayers specification." << endl;
}
// Construct pointVectorField with correct boundary conditions for adding
// layers
Foam::tmp<Foam::pointVectorField>
Foam::autoLayerDriver::makeLayerDisplacementField
(
const pointMesh& pMesh,
const labelList& numLayers
)
{
// Construct displacement field.
const pointBoundaryMesh& pointPatches = pMesh.boundary();
wordList patchFieldTypes
(
pointPatches.size(),
slipPointPatchVectorField::typeName
);
wordList actualPatchTypes(patchFieldTypes.size());
forAll(pointPatches, patchI)
{
actualPatchTypes[patchI] = pointPatches[patchI].type();
}
forAll(numLayers, patchI)
{
// 0 layers: do not allow slip so fixedValue 0
// >0 layers: fixedValue which gets adapted
if (numLayers[patchI] >= 0)
{
patchFieldTypes[patchI] = fixedValuePointPatchVectorField::typeName;
}
}
forAll(pointPatches, patchI)
{
if (isA<processorPointPatch>(pointPatches[patchI]))
{
patchFieldTypes[patchI] = calculatedPointPatchVectorField::typeName;
}
else if (isA<cyclicPointPatch>(pointPatches[patchI]))
{
patchFieldTypes[patchI] = cyclicSlipPointPatchVectorField::typeName;
}
}
const polyMesh& mesh = pMesh();
// Note: time().timeName() instead of meshRefinement::timeName() since
// postprocessable field.
tmp<pointVectorField> tfld
(
new pointVectorField
(
IOobject
(
"pointDisplacement",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE
),
pMesh,
dimensionedVector("displacement", dimLength, vector::zero),
patchFieldTypes,
actualPatchTypes
)
);
return tfld;
}
void Foam::autoLayerDriver::growNoExtrusion
(
const indirectPrimitivePatch& pp,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
Info<< nl << "Growing non-extrusion points by one layer ..." << endl;
List<extrudeMode> grownExtrudeStatus(extrudeStatus);
const faceList& localFaces = pp.localFaces();
label nGrown = 0;
forAll(localFaces, faceI)
{
const face& f = localFaces[faceI];
bool hasSqueeze = false;
forAll(f, fp)
{
if (extrudeStatus[f[fp]] == NOEXTRUDE)
{
hasSqueeze = true;
break;
}
}
if (hasSqueeze)
{
// Squeeze all points of face
forAll(f, fp)
{
if
(
extrudeStatus[f[fp]] == EXTRUDE
&& grownExtrudeStatus[f[fp]] != NOEXTRUDE
)
{
grownExtrudeStatus[f[fp]] = NOEXTRUDE;
nGrown++;
}
}
}
}
extrudeStatus.transfer(grownExtrudeStatus);
// Synchronise since might get called multiple times.
// Use the fact that NOEXTRUDE is the minimum value.
{
labelList status(extrudeStatus.size());
forAll(status, i)
{
status[i] = extrudeStatus[i];
}
syncTools::syncPointList
(
meshRefiner_.mesh(),
pp.meshPoints(),
status,
minEqOp<label>(),
labelMax // null value
);
forAll(status, i)
{
extrudeStatus[i] = extrudeMode(status[i]);
}
}
forAll(extrudeStatus, patchPointI)
{
if (extrudeStatus[patchPointI] == NOEXTRUDE)
{
patchDisp[patchPointI] = vector::zero;
patchNLayers[patchPointI] = 0;
}
}
reduce(nGrown, sumOp<label>());
Info<< "Set displacement to zero for an additional " << nGrown
<< " points." << endl;
}
void Foam::autoLayerDriver::determineSidePatches
(
const globalIndex& globalFaces,
const labelListList& edgeGlobalFaces,
const indirectPrimitivePatch& pp,
labelList& sidePatchID
)
{
// Sometimes edges-to-be-extruded are on more than 2 processors.
// Work out which 2 hold the faces to be extruded and thus which procpatch
// the side-face should be in. As an additional complication this might
// mean that 2 procesors that were only edge-connected now suddenly need
// to become face-connected i.e. have a processor patch between them.
fvMesh& mesh = meshRefiner_.mesh();
// Determine sidePatchID. Any additional processor boundary gets added to
// patchToNbrProc,nbrProcToPatch and nPatches gets set to the new number
// of patches.
label nPatches;
Map<label> nbrProcToPatch;
Map<label> patchToNbrProc;
addPatchCellLayer::calcSidePatch
(
mesh,
globalFaces,
edgeGlobalFaces,
pp,
sidePatchID,
nPatches,
nbrProcToPatch,
patchToNbrProc
);
label nOldPatches = mesh.boundaryMesh().size();
label nAdded = returnReduce(nPatches-nOldPatches, sumOp<label>());
Info<< nl << "Adding in total " << nAdded/2 << " inter-processor patches to"
<< " handle extrusion of non-manifold processor boundaries."
<< endl;
if (nAdded > 0)
{
// We might not add patches in same order as in patchToNbrProc
// so prepare to renumber sidePatchID
Map<label> wantedToAddedPatch;
for (label patchI = nOldPatches; patchI < nPatches; patchI++)
{
label nbrProcI = patchToNbrProc[patchI];
word name =
"procBoundary"
+ Foam::name(Pstream::myProcNo())
+ "to"
+ Foam::name(nbrProcI);
dictionary patchDict;
patchDict.add("type", processorPolyPatch::typeName);
patchDict.add("myProcNo", Pstream::myProcNo());
patchDict.add("neighbProcNo", nbrProcI);
patchDict.add("nFaces", 0);
patchDict.add("startFace", mesh.nFaces());
//Pout<< "Adding patch " << patchI
// << " name:" << name
// << " between " << Pstream::myProcNo()
// << " and " << nbrProcI << endl;
label procPatchI = meshRefiner_.appendPatch
(
mesh,
mesh.boundaryMesh().size(), // new patch index
name,
patchDict
);
wantedToAddedPatch.insert(patchI, procPatchI);
}
// Renumber sidePatchID
forAll(sidePatchID, i)
{
label patchI = sidePatchID[i];
Map<label>::const_iterator fnd = wantedToAddedPatch.find(patchI);
if (fnd != wantedToAddedPatch.end())
{
sidePatchID[i] = fnd();
}
}
mesh.clearOut();
const_cast<polyBoundaryMesh&>(mesh.boundaryMesh()).updateMesh();
}
}
void Foam::autoLayerDriver::calculateLayerThickness
(
const indirectPrimitivePatch& pp,
const labelList& patchIDs,
const layerParameters& layerParams,
const labelList& cellLevel,
const labelList& patchNLayers,
const scalar edge0Len,
scalarField& thickness,
scalarField& minThickness,
scalarField& expansionRatio
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// Rework patch-wise layer parameters into minimum per point
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Note: only layer parameters consistent with layer specification
// method (see layerParameters) will be correct.
scalarField firstLayerThickness(pp.nPoints(), GREAT);
scalarField finalLayerThickness(pp.nPoints(), GREAT);
scalarField totalThickness(pp.nPoints(), GREAT);
scalarField expRatio(pp.nPoints(), GREAT);
minThickness.setSize(pp.nPoints());
minThickness = GREAT;
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
const labelList& meshPoints = patches[patchI].meshPoints();
forAll(meshPoints, patchPointI)
{
label ppPointI = pp.meshPointMap()[meshPoints[patchPointI]];
firstLayerThickness[ppPointI] = min
(
firstLayerThickness[ppPointI],
layerParams.firstLayerThickness()[patchI]
);
finalLayerThickness[ppPointI] = min
(
finalLayerThickness[ppPointI],
layerParams.finalLayerThickness()[patchI]
);
totalThickness[ppPointI] = min
(
totalThickness[ppPointI],
layerParams.thickness()[patchI]
);
expRatio[ppPointI] = min
(
expRatio[ppPointI],
layerParams.expansionRatio()[patchI]
);
minThickness[ppPointI] = min
(
minThickness[ppPointI],
layerParams.minThickness()[patchI]
);
}
}
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
firstLayerThickness,
minEqOp<scalar>(),
GREAT // null value
);
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
finalLayerThickness,
minEqOp<scalar>(),
GREAT // null value
);
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
totalThickness,
minEqOp<scalar>(),
GREAT // null value
);
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
expRatio,
minEqOp<scalar>(),
GREAT // null value
);
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
minThickness,
minEqOp<scalar>(),
GREAT // null value
);
// Now the thicknesses are set according to the minimum of connected
// patches.
// Rework relative thickness into absolute
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// by multiplying with the internal cell size.
if (layerParams.relativeSizes())
{
if
(
min(layerParams.minThickness()) < 0
|| max(layerParams.minThickness()) > 2
)
{
FatalErrorIn("calculateLayerThickness(..)")
<< "Thickness should be factor of local undistorted cell size."
<< " Valid values are [0..2]." << nl
<< " minThickness:" << layerParams.minThickness()
<< exit(FatalError);
}
// Determine per point the max cell level of connected cells
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
labelList maxPointLevel(pp.nPoints(), labelMin);
forAll(pp, i)
{
label ownLevel = cellLevel[mesh.faceOwner()[pp.addressing()[i]]];
const face& f = pp.localFaces()[i];
forAll(f, fp)
{
maxPointLevel[f[fp]] = max(maxPointLevel[f[fp]], ownLevel);
}
}
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
maxPointLevel,
maxEqOp<label>(),
labelMin // null value
);
forAll(maxPointLevel, pointI)
{
// Find undistorted edge size for this level.
scalar edgeLen = edge0Len/(1<<maxPointLevel[pointI]);
firstLayerThickness[pointI] *= edgeLen;
finalLayerThickness[pointI] *= edgeLen;
totalThickness[pointI] *= edgeLen;
minThickness[pointI] *= edgeLen;
}
}
// Rework thickness parameters into overall thickness
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
forAll(firstLayerThickness, pointI)
{
thickness[pointI] = layerParams.layerThickness
(
patchNLayers[pointI],
firstLayerThickness[pointI],
finalLayerThickness[pointI],
totalThickness[pointI],
expRatio[pointI]
);
expansionRatio[pointI] = layerParams.layerExpansionRatio
(
patchNLayers[pointI],
firstLayerThickness[pointI],
finalLayerThickness[pointI],
totalThickness[pointI],
expRatio[pointI]
);
}
//Info<< "calculateLayerThickness : min:" << gMin(thickness)
// << " max:" << gMax(thickness) << endl;
// Print a bit
{
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// Find maximum length of a patch name, for a nicer output
label maxPatchNameLen = 0;
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
word patchName = patches[patchI].name();
maxPatchNameLen = max(maxPatchNameLen, label(patchName.size()));
}
Info<< nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << "patch"
<< setw(0) << " faces layers avg thickness[m]" << nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << " "
<< setw(0) << " near-wall overall" << nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << "-----"
<< setw(0) << " ----- ------ --------- -------" << endl;
const PackedBoolList isMasterPoint(syncTools::getMasterPoints(mesh));
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
const labelList& meshPoints = patches[patchI].meshPoints();
scalar sumThickness = 0;
scalar sumNearWallThickness = 0;
label nMasterPoints = 0;
forAll(meshPoints, patchPointI)
{
label meshPointI = meshPoints[patchPointI];
if (isMasterPoint[meshPointI])
{
label ppPointI = pp.meshPointMap()[meshPointI];
sumThickness += thickness[ppPointI];
sumNearWallThickness += layerParams.firstLayerThickness
(
patchNLayers[ppPointI],
firstLayerThickness[ppPointI],
finalLayerThickness[ppPointI],
thickness[ppPointI],
expansionRatio[ppPointI]
);
nMasterPoints++;
}
}
label totNPoints = returnReduce(nMasterPoints, sumOp<label>());
// For empty patches, totNPoints is 0.
scalar avgThickness = 0;
scalar avgNearWallThickness = 0;
if (totNPoints > 0)
{
avgThickness =
returnReduce(sumThickness, sumOp<scalar>())
/ totNPoints;
avgNearWallThickness =
returnReduce(sumNearWallThickness, sumOp<scalar>())
/ totNPoints;
}
Info<< setf(ios_base::left) << setw(maxPatchNameLen)
<< patches[patchI].name() << setprecision(3)
<< " " << setw(8)
<< returnReduce(patches[patchI].size(), sumOp<scalar>())
<< " " << setw(6) << layerParams.numLayers()[patchI]
<< " " << setw(8) << avgNearWallThickness
<< " " << setw(8) << avgThickness
<< endl;
}
Info<< endl;
}
}
// Synchronize displacement among coupled patches.
void Foam::autoLayerDriver::syncPatchDisplacement
(
const indirectPrimitivePatch& pp,
const scalarField& minThickness,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
const labelList& meshPoints = pp.meshPoints();
label nChangedTotal = 0;
while (true)
{
label nChanged = 0;
// Sync displacement (by taking min)
syncTools::syncPointList
(
mesh,
meshPoints,
patchDisp,
minMagSqrEqOp<vector>(),
point::rootMax // null value
);
// Unmark if displacement too small
forAll(patchDisp, i)
{
if (mag(patchDisp[i]) < minThickness[i])
{
if
(
unmarkExtrusion
(
i,
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nChanged++;
}
}
}
labelList syncPatchNLayers(patchNLayers);
syncTools::syncPointList
(
mesh,
meshPoints,
syncPatchNLayers,
minEqOp<label>(),
labelMax // null value
);
// Reset if differs
// 1. take max
forAll(syncPatchNLayers, i)
{
if (syncPatchNLayers[i] != patchNLayers[i])
{
if
(
unmarkExtrusion
(
i,
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nChanged++;
}
}
}
syncTools::syncPointList
(
mesh,
meshPoints,
syncPatchNLayers,
maxEqOp<label>(),
labelMin // null value
);
// Reset if differs
// 2. take min
forAll(syncPatchNLayers, i)
{
if (syncPatchNLayers[i] != patchNLayers[i])
{
if
(
unmarkExtrusion
(
i,
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nChanged++;
}
}
}
nChangedTotal += nChanged;
if (!returnReduce(nChanged, sumOp<label>()))
{
break;
}
}
//Info<< "Prevented extrusion on "
// << returnReduce(nChangedTotal, sumOp<label>())
// << " coupled patch points during syncPatchDisplacement." << endl;
}
// Calculate displacement vector for all patch points. Uses pointNormal.
// Checks that displaced patch point would be visible from all centres
// of the faces using it.
// extrudeStatus is both input and output and gives the status of each
// patch point.
void Foam::autoLayerDriver::getPatchDisplacement
(
const indirectPrimitivePatch& pp,
const scalarField& thickness,
const scalarField& minThickness,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
Info<< nl << "Determining displacement for added points"
<< " according to pointNormal ..." << endl;
const fvMesh& mesh = meshRefiner_.mesh();
const vectorField& faceNormals = pp.faceNormals();
const labelListList& pointFaces = pp.pointFaces();
const pointField& localPoints = pp.localPoints();
// Determine pointNormal
// ~~~~~~~~~~~~~~~~~~~~~
pointField pointNormals(PatchTools::pointNormals(mesh, pp));
// Determine local length scale on patch
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Start off from same thickness everywhere (except where no extrusion)
patchDisp = thickness*pointNormals;
label nNoVisNormal = 0;
label nExtrudeRemove = 0;
// Check if no extrude possible.
forAll(pointNormals, patchPointI)
{
label meshPointI = pp.meshPoints()[patchPointI];
if (extrudeStatus[patchPointI] == NOEXTRUDE)
{
// Do not use unmarkExtrusion; forcibly set to zero extrusion.
patchNLayers[patchPointI] = 0;
patchDisp[patchPointI] = vector::zero;
}
else
{
// Get normal
const vector& n = pointNormals[patchPointI];
if (!meshTools::visNormal(n, faceNormals, pointFaces[patchPointI]))
{
if (debug&meshRefinement::OBJINTERSECTIONS)
{
Pout<< "No valid normal for point " << meshPointI
<< ' ' << pp.points()[meshPointI]
<< "; setting displacement to "
<< patchDisp[patchPointI]
<< endl;
}
extrudeStatus[patchPointI] = EXTRUDEREMOVE;
nNoVisNormal++;
}
}
}
// At illegal points make displacement average of new neighbour positions
forAll(extrudeStatus, patchPointI)
{
if (extrudeStatus[patchPointI] == EXTRUDEREMOVE)
{
point avg(vector::zero);
label nPoints = 0;
const labelList& pEdges = pp.pointEdges()[patchPointI];
forAll(pEdges, i)
{
label edgeI = pEdges[i];
label otherPointI = pp.edges()[edgeI].otherVertex(patchPointI);
if (extrudeStatus[otherPointI] != NOEXTRUDE)
{
avg += localPoints[otherPointI] + patchDisp[otherPointI];
nPoints++;
}
}
if (nPoints > 0)
{
if (debug&meshRefinement::OBJINTERSECTIONS)
{
Pout<< "Displacement at illegal point "
<< localPoints[patchPointI]
<< " set to "
<< (avg / nPoints - localPoints[patchPointI])
<< endl;
}
patchDisp[patchPointI] =
avg / nPoints
- localPoints[patchPointI];
nExtrudeRemove++;
}
else
{
// All surrounding points are not extruded. Leave patchDisp
// intact.
}
}
}
Info<< "Detected " << returnReduce(nNoVisNormal, sumOp<label>())
<< " points with point normal pointing through faces." << nl
<< "Reset displacement at "
<< returnReduce(nExtrudeRemove, sumOp<label>())
<< " points to average of surrounding points." << endl;
// Make sure displacement is equal on both sides of coupled patches.
syncPatchDisplacement
(
pp,
minThickness,
patchDisp,
patchNLayers,
extrudeStatus
);
Info<< endl;
}
bool Foam::autoLayerDriver::sameEdgeNeighbour
(
const labelListList& globalEdgeFaces,
const label myGlobalFaceI,
const label nbrGlobFaceI,
const label edgeI
) const
{
const labelList& eFaces = globalEdgeFaces[edgeI];
if (eFaces.size() == 2)
{
return edge(myGlobalFaceI, nbrGlobFaceI) == edge(eFaces[0], eFaces[1]);
}
else
{
return false;
}
}
void Foam::autoLayerDriver::getVertexString
(
const indirectPrimitivePatch& pp,
const labelListList& globalEdgeFaces,
const label faceI,
const label edgeI,
const label myGlobFaceI,
const label nbrGlobFaceI,
DynamicList<label>& vertices
) const
{
const labelList& fEdges = pp.faceEdges()[faceI];
label fp = findIndex(fEdges, edgeI);
if (fp == -1)
{
FatalErrorIn("autoLayerDriver::getVertexString(..)")
<< "problem." << abort(FatalError);
}
// Search back
label startFp = fp;
forAll(fEdges, i)
{
label prevFp = fEdges.rcIndex(startFp);
if
(
!sameEdgeNeighbour
(
globalEdgeFaces,
myGlobFaceI,
nbrGlobFaceI,
fEdges[prevFp]
)
)
{
break;
}
startFp = prevFp;
}
label endFp = fp;
forAll(fEdges, i)
{
label nextFp = fEdges.fcIndex(endFp);
if
(
!sameEdgeNeighbour
(
globalEdgeFaces,
myGlobFaceI,
nbrGlobFaceI,
fEdges[nextFp]
)
)
{
break;
}
endFp = nextFp;
}
const face& f = pp.localFaces()[faceI];
vertices.clear();
fp = startFp;
while (fp != endFp)
{
vertices.append(f[fp]);
fp = f.fcIndex(fp);
}
vertices.append(f[fp]);
fp = f.fcIndex(fp);
vertices.append(f[fp]);
}
// Truncates displacement
// - for all patchFaces in the faceset displacement gets set to zero
// - all displacement < minThickness gets set to zero
Foam::label Foam::autoLayerDriver::truncateDisplacement
(
const globalIndex& globalFaces,
const labelListList& edgeGlobalFaces,
const indirectPrimitivePatch& pp,
const scalarField& minThickness,
const faceSet& illegalPatchFaces,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
) const
{
const fvMesh& mesh = meshRefiner_.mesh();
label nChanged = 0;
const Map<label>& meshPointMap = pp.meshPointMap();
forAllConstIter(faceSet, illegalPatchFaces, iter)
{
label faceI = iter.key();
if (mesh.isInternalFace(faceI))
{
FatalErrorIn("truncateDisplacement(..)")
<< "Faceset " << illegalPatchFaces.name()
<< " contains internal face " << faceI << nl
<< "It should only contain patch faces" << abort(FatalError);
}
const face& f = mesh.faces()[faceI];
forAll(f, fp)
{
if (meshPointMap.found(f[fp]))
{
label patchPointI = meshPointMap[f[fp]];
if (extrudeStatus[patchPointI] != NOEXTRUDE)
{
unmarkExtrusion
(
patchPointI,
patchDisp,
patchNLayers,
extrudeStatus
);
nChanged++;
}
}
}
}
forAll(patchDisp, patchPointI)
{
if (mag(patchDisp[patchPointI]) < minThickness[patchPointI])
{
if
(
unmarkExtrusion
(
patchPointI,
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nChanged++;
}
}
else if (extrudeStatus[patchPointI] == NOEXTRUDE)
{
// Make sure displacement is 0. Should already be so but ...
patchDisp[patchPointI] = vector::zero;
patchNLayers[patchPointI] = 0;
}
}
const faceList& localFaces = pp.localFaces();
while (true)
{
syncPatchDisplacement
(
pp,
minThickness,
patchDisp,
patchNLayers,
extrudeStatus
);
// Pinch
// ~~~~~
// Make sure that a face doesn't have two non-consecutive areas
// not extruded (e.g. quad where vertex 0 and 2 are not extruded
// but 1 and 3 are) since this gives topological errors.
label nPinched = 0;
forAll(localFaces, i)
{
const face& localF = localFaces[i];
// Count number of transitions from unsnapped to snapped.
label nTrans = 0;
extrudeMode prevMode = extrudeStatus[localF.prevLabel(0)];
forAll(localF, fp)
{
extrudeMode fpMode = extrudeStatus[localF[fp]];
if (prevMode == NOEXTRUDE && fpMode != NOEXTRUDE)
{
nTrans++;
}
prevMode = fpMode;
}
if (nTrans > 1)
{
// Multiple pinches. Reset whole face as unextruded.
if
(
unmarkExtrusion
(
localF,
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nPinched++;
nChanged++;
}
}
}
reduce(nPinched, sumOp<label>());
Info<< "truncateDisplacement : Unextruded " << nPinched
<< " faces due to non-consecutive vertices being extruded." << endl;
// Butterfly
// ~~~~~~~~~
// Make sure that a string of edges becomes a single face so
// not a butterfly. Occassionally an 'edge' will have a single dangling
// vertex due to face combining. These get extruded as a single face
// (with a dangling vertex) so make sure this extrusion forms a single
// shape.
// - continuous i.e. no butterfly:
// + +
// |\ /|
// | \ / |
// +--+--+
// - extrudes from all but the endpoints i.e. no partial
// extrude
// +
// /|
// / |
// +--+--+
// The common error topology is a pinch somewhere in the middle
label nButterFly = 0;
{
DynamicList<label> stringedVerts;
forAll(pp.edges(), edgeI)
{
const labelList& globFaces = edgeGlobalFaces[edgeI];
if (globFaces.size() == 2)
{
label myFaceI = pp.edgeFaces()[edgeI][0];
label myGlobalFaceI = globalFaces.toGlobal
(
pp.addressing()[myFaceI]
);
label nbrGlobalFaceI =
(
globFaces[0] != myGlobalFaceI
? globFaces[0]
: globFaces[1]
);
getVertexString
(
pp,
edgeGlobalFaces,
myFaceI,
edgeI,
myGlobalFaceI,
nbrGlobalFaceI,
stringedVerts
);
if
(
extrudeStatus[stringedVerts[0]] != NOEXTRUDE
|| extrudeStatus[stringedVerts.last()] != NOEXTRUDE
)
{
// Any pinch in the middle
bool pinch = false;
for (label i = 1; i < stringedVerts.size()-1; i++)
{
if
(
extrudeStatus[stringedVerts[i]] == NOEXTRUDE
)
{
pinch = true;
break;
}
}
if (pinch)
{
forAll(stringedVerts, i)
{
if
(
unmarkExtrusion
(
stringedVerts[i],
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
nButterFly++;
nChanged++;
}
}
}
}
}
}
}
reduce(nButterFly, sumOp<label>());
Info<< "truncateDisplacement : Unextruded " << nButterFly
<< " faces due to stringed edges with inconsistent extrusion."
<< endl;
// Consistent number of layers
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Make sure that a face has consistent number of layers for all
// its vertices.
label nDiffering = 0;
//forAll(localFaces, i)
//{
// const face& localF = localFaces[i];
//
// label numLayers = -1;
//
// forAll(localF, fp)
// {
// if (patchNLayers[localF[fp]] > 0)
// {
// if (numLayers == -1)
// {
// numLayers = patchNLayers[localF[fp]];
// }
// else if (numLayers != patchNLayers[localF[fp]])
// {
// // Differing number of layers
// if
// (
// unmarkExtrusion
// (
// localF,
// patchDisp,
// patchNLayers,
// extrudeStatus
// )
// )
// {
// nDiffering++;
// nChanged++;
// }
// break;
// }
// }
// }
//}
//
//reduce(nDiffering, sumOp<label>());
//
//Info<< "truncateDisplacement : Unextruded " << nDiffering
// << " faces due to having differing number of layers." << endl;
if (nPinched+nButterFly+nDiffering == 0)
{
break;
}
}
return nChanged;
}
// Setup layer information (at points and faces) to modify mesh topology in
// regions where layer mesh terminates.
void Foam::autoLayerDriver::setupLayerInfoTruncation
(
const indirectPrimitivePatch& pp,
const labelList& patchNLayers,
const List<extrudeMode>& extrudeStatus,
const label nBufferCellsNoExtrude,
labelList& nPatchPointLayers,
labelList& nPatchFaceLayers
) const
{
Info<< nl << "Setting up information for layer truncation ..." << endl;
const fvMesh& mesh = meshRefiner_.mesh();
if (nBufferCellsNoExtrude < 0)
{
Info<< nl << "Performing no layer truncation."
<< " nBufferCellsNoExtrude set to less than 0 ..." << endl;
// Face layers if any point gets extruded
forAll(pp.localFaces(), patchFaceI)
{
const face& f = pp.localFaces()[patchFaceI];
forAll(f, fp)
{
if (patchNLayers[f[fp]] > 0)
{
nPatchFaceLayers[patchFaceI] = patchNLayers[f[fp]];
break;
}
}
}
nPatchPointLayers = patchNLayers;
}
else
{
// Determine max point layers per face.
labelList maxLevel(pp.size(), 0);
forAll(pp.localFaces(), patchFaceI)
{
const face& f = pp.localFaces()[patchFaceI];
// find patch faces where layer terminates (i.e contains extrude
// and noextrude points).
bool noExtrude = false;
label mLevel = 0;
forAll(f, fp)
{
if (extrudeStatus[f[fp]] == NOEXTRUDE)
{
noExtrude = true;
}
mLevel = max(mLevel, patchNLayers[f[fp]]);
}
if (mLevel > 0)
{
// So one of the points is extruded. Check if all are extruded
// or is a mix.
if (noExtrude)
{
nPatchFaceLayers[patchFaceI] = 1;
maxLevel[patchFaceI] = mLevel;
}
else
{
maxLevel[patchFaceI] = mLevel;
}
}
}
// We have the seed faces (faces with nPatchFaceLayers != maxLevel)
// Now do a meshwave across the patch where we pick up neighbours
// of seed faces.
// Note: quite inefficient. Could probably be coded better.
const labelListList& pointFaces = pp.pointFaces();
label nLevels = gMax(patchNLayers);
// flag neighbouring patch faces with number of layers to grow
for (label ilevel = 1; ilevel < nLevels; ilevel++)
{
label nBuffer;
if (ilevel == 1)
{
nBuffer = nBufferCellsNoExtrude - 1;
}
else
{
nBuffer = nBufferCellsNoExtrude;
}
for (label ibuffer = 0; ibuffer < nBuffer + 1; ibuffer++)
{
labelList tempCounter(nPatchFaceLayers);
boolList foundNeighbour(pp.nPoints(), false);
forAll(pp.meshPoints(), patchPointI)
{
forAll(pointFaces[patchPointI], pointFaceI)
{
label faceI = pointFaces[patchPointI][pointFaceI];
if
(
nPatchFaceLayers[faceI] != -1
&& maxLevel[faceI] > 0
)
{
foundNeighbour[patchPointI] = true;
break;
}
}
}
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
foundNeighbour,
orEqOp<bool>(),
false // null value
);
forAll(pp.meshPoints(), patchPointI)
{
if (foundNeighbour[patchPointI])
{
forAll(pointFaces[patchPointI], pointFaceI)
{
label faceI = pointFaces[patchPointI][pointFaceI];
if
(
nPatchFaceLayers[faceI] == -1
&& maxLevel[faceI] > 0
&& ilevel < maxLevel[faceI]
)
{
tempCounter[faceI] = ilevel;
}
}
}
}
nPatchFaceLayers = tempCounter;
}
}
forAll(pp.localFaces(), patchFaceI)
{
if (nPatchFaceLayers[patchFaceI] == -1)
{
nPatchFaceLayers[patchFaceI] = maxLevel[patchFaceI];
}
}
forAll(pp.meshPoints(), patchPointI)
{
if (extrudeStatus[patchPointI] != NOEXTRUDE)
{
forAll(pointFaces[patchPointI], pointFaceI)
{
label face = pointFaces[patchPointI][pointFaceI];
nPatchPointLayers[patchPointI] = max
(
nPatchPointLayers[patchPointI],
nPatchFaceLayers[face]
);
}
}
else
{
nPatchPointLayers[patchPointI] = 0;
}
}
syncTools::syncPointList
(
mesh,
pp.meshPoints(),
nPatchPointLayers,
maxEqOp<label>(),
label(0) // null value
);
}
}
// Does any of the cells use a face from faces?
bool Foam::autoLayerDriver::cellsUseFace
(
const polyMesh& mesh,
const labelList& cellLabels,
const labelHashSet& faces
)
{
forAll(cellLabels, i)
{
const cell& cFaces = mesh.cells()[cellLabels[i]];
forAll(cFaces, cFaceI)
{
if (faces.found(cFaces[cFaceI]))
{
return true;
}
}
}
return false;
}
// Checks the newly added cells and locally unmarks points so they
// will not get extruded next time round. Returns global number of unmarked
// points (0 if all was fine)
Foam::label Foam::autoLayerDriver::checkAndUnmark
(
const addPatchCellLayer& addLayer,
const dictionary& meshQualityDict,
const bool additionalReporting,
const List<labelPair>& baffles,
const indirectPrimitivePatch& pp,
const fvMesh& newMesh,
pointField& patchDisp,
labelList& patchNLayers,
List<extrudeMode>& extrudeStatus
)
{
// Check the resulting mesh for errors
Info<< nl << "Checking mesh with layer ..." << endl;
faceSet wrongFaces(newMesh, "wrongFaces", newMesh.nFaces()/1000);
motionSmoother::checkMesh
(
false,
newMesh,
meshQualityDict,
identity(newMesh.nFaces()),
baffles,
wrongFaces
);
Info<< "Detected " << returnReduce(wrongFaces.size(), sumOp<label>())
<< " illegal faces"
<< " (concave, zero area or negative cell pyramid volume)"
<< endl;
// Undo local extrusion if
// - any of the added cells in error
label nChanged = 0;
// Get all cells in the layer.
labelListList addedCells
(
addPatchCellLayer::addedCells
(
newMesh,
addLayer.layerFaces()
)
);
// Check if any of the faces in error uses any face of an added cell
// - if additionalReporting print the few remaining areas for ease of
// finding out where the problems are.
const label nReportMax = 10;
DynamicField<point> disabledFaceCentres(nReportMax);
forAll(addedCells, oldPatchFaceI)
{
// Get the cells (in newMesh labels) per old patch face (in mesh
// labels)
const labelList& fCells = addedCells[oldPatchFaceI];
if (cellsUseFace(newMesh, fCells, wrongFaces))
{
// Unmark points on old mesh
if
(
unmarkExtrusion
(
pp.localFaces()[oldPatchFaceI],
patchDisp,
patchNLayers,
extrudeStatus
)
)
{
if (additionalReporting && (nChanged < nReportMax))
{
disabledFaceCentres.append
(
pp.faceCentres()[oldPatchFaceI]
);
}
nChanged++;
}
}
}
label nChangedTotal = returnReduce(nChanged, sumOp<label>());
if (additionalReporting)
{
// Limit the number of points to be printed so that
// not too many points are reported when running in parallel
// Not accurate, i.e. not always nReportMax points are written,
// but this estimation avoid some communication here.
// The important thing, however, is that when only a few faces
// are disabled, their coordinates are printed, and this should be
// the case
label nReportLocal = nChanged;
if (nChangedTotal > nReportMax)
{
nReportLocal = min
(
max(nChangedTotal / Pstream::nProcs(), 1),
min
(
nChanged,
max(nReportMax / Pstream::nProcs(), 1)
)
);
}
if (nReportLocal)
{
Pout<< "Checked mesh with layers. Disabled extrusion at " << endl;
for (label i=0; i < nReportLocal; i++)
{
Pout<< " " << disabledFaceCentres[i] << endl;
}
}
label nReportTotal = returnReduce(nReportLocal, sumOp<label>());
if (nReportTotal < nChangedTotal)
{
Info<< "Suppressed disabled extrusion message for other "
<< nChangedTotal - nReportTotal << " faces." << endl;
}
}
return nChangedTotal;
}
//- Count global number of extruded faces
Foam::label Foam::autoLayerDriver::countExtrusion
(
const indirectPrimitivePatch& pp,
const List<extrudeMode>& extrudeStatus
)
{
// Count number of extruded patch faces
label nExtruded = 0;
{
const faceList& localFaces = pp.localFaces();
forAll(localFaces, i)
{
const face& localFace = localFaces[i];
forAll(localFace, fp)
{
if (extrudeStatus[localFace[fp]] != NOEXTRUDE)
{
nExtruded++;
break;
}
}
}
}
return returnReduce(nExtruded, sumOp<label>());
}
// Collect layer faces and layer cells into mesh fields for ease of handling
void Foam::autoLayerDriver::getLayerCellsFaces
(
const polyMesh& mesh,
const addPatchCellLayer& addLayer,
const scalarField& oldRealThickness,
labelList& cellNLayers,
scalarField& faceRealThickness
)
{
cellNLayers.setSize(mesh.nCells());
cellNLayers = 0;
faceRealThickness.setSize(mesh.nFaces());
faceRealThickness = 0;
// Mark all faces in the layer
const labelListList& layerFaces = addLayer.layerFaces();
// Mark all cells in the layer.
labelListList addedCells(addPatchCellLayer::addedCells(mesh, layerFaces));
forAll(addedCells, oldPatchFaceI)
{
const labelList& added = addedCells[oldPatchFaceI];
const labelList& layer = layerFaces[oldPatchFaceI];
if (layer.size())
{
forAll(added, i)
{
cellNLayers[added[i]] = layer.size()-1;
}
}
}
forAll(layerFaces, oldPatchFaceI)
{
const labelList& layer = layerFaces[oldPatchFaceI];
const scalar realThickness = oldRealThickness[oldPatchFaceI];
if (layer.size())
{
// Layer contains both original boundary face and new boundary
// face so is nLayers+1
forAll(layer, i)
{
faceRealThickness[layer[i]] = realThickness;
}
}
}
}
void Foam::autoLayerDriver::printLayerData
(
const fvMesh& mesh,
const labelList& patchIDs,
const labelList& cellNLayers,
const scalarField& faceWantedThickness,
const scalarField& faceRealThickness
) const
{
const polyBoundaryMesh& pbm = mesh.boundaryMesh();
// Find maximum length of a patch name, for a nicer output
label maxPatchNameLen = 0;
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
word patchName = pbm[patchI].name();
maxPatchNameLen = max(maxPatchNameLen, label(patchName.size()));
}
Info<< nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << "patch"
<< setw(0) << " faces layers overall thickness" << nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << " "
<< setw(0) << " [m] [%]" << nl
<< setf(ios_base::left) << setw(maxPatchNameLen) << "-----"
<< setw(0) << " ----- ------ --- ---" << endl;
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
const polyPatch& pp = pbm[patchI];
label sumSize = pp.size();
// Number of layers
const labelList& faceCells = pp.faceCells();
label sumNLayers = 0;
forAll(faceCells, i)
{
sumNLayers += cellNLayers[faceCells[i]];
}
// Thickness
scalarField::subField patchWanted = pbm[patchI].patchSlice
(
faceWantedThickness
);
scalarField::subField patchReal = pbm[patchI].patchSlice
(
faceRealThickness
);
scalar sumRealThickness = sum(patchReal);
scalar sumFraction = 0;
forAll(patchReal, i)
{
if (patchWanted[i] > VSMALL)
{
sumFraction += (patchReal[i]/patchWanted[i]);
}
}
reduce(sumSize, sumOp<label>());
reduce(sumNLayers, sumOp<label>());
reduce(sumRealThickness, sumOp<scalar>());
reduce(sumFraction, sumOp<scalar>());
scalar avgLayers = 0;
scalar avgReal = 0;
scalar avgFraction = 0;
if (sumSize > 0)
{
avgLayers = scalar(sumNLayers)/sumSize;
avgReal = sumRealThickness/sumSize;
avgFraction = sumFraction/sumSize;
}
Info<< setf(ios_base::left) << setw(maxPatchNameLen)
<< pbm[patchI].name() << setprecision(3)
<< " " << setw(8) << sumSize
<< " " << setw(8) << avgLayers
<< " " << setw(8) << avgReal
<< " " << setw(8) << 100*avgFraction
<< endl;
}
Info<< endl;
}
bool Foam::autoLayerDriver::writeLayerData
(
const fvMesh& mesh,
const labelList& patchIDs,
const labelList& cellNLayers,
const scalarField& faceWantedThickness,
const scalarField& faceRealThickness
) const
{
bool allOk = true;
if (meshRefinement::writeLevel() & meshRefinement::WRITELAYERSETS)
{
{
label nAdded = 0;
forAll(cellNLayers, cellI)
{
if (cellNLayers[cellI] > 0)
{
nAdded++;
}
}
cellSet addedCellSet(mesh, "addedCells", nAdded);
forAll(cellNLayers, cellI)
{
if (cellNLayers[cellI] > 0)
{
addedCellSet.insert(cellI);
}
}
addedCellSet.instance() = meshRefiner_.timeName();
Info<< "Writing "
<< returnReduce(addedCellSet.size(), sumOp<label>())
<< " added cells to cellSet "
<< addedCellSet.name() << endl;
bool ok = addedCellSet.write();
allOk = allOk & ok;
}
{
label nAdded = 0;
forAll(faceRealThickness, faceI)
{
if (faceRealThickness[faceI] > 0)
{
nAdded++;
}
}
faceSet layerFacesSet(mesh, "layerFaces", nAdded);
forAll(faceRealThickness, faceI)
{
if (faceRealThickness[faceI] > 0)
{
layerFacesSet.insert(faceI);
}
}
layerFacesSet.instance() = meshRefiner_.timeName();
Info<< "Writing "
<< returnReduce(layerFacesSet.size(), sumOp<label>())
<< " faces inside added layer to faceSet "
<< layerFacesSet.name() << endl;
bool ok = layerFacesSet.write();
allOk = allOk & ok;
}
}
if (meshRefinement::writeLevel() & meshRefinement::WRITELAYERFIELDS)
{
Info<< nl << "Writing fields with layer information:" << incrIndent
<< endl;
{
volScalarField fld
(
IOobject
(
"nSurfaceLayers",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE,
false
),
mesh,
dimensionedScalar("zero", dimless, 0),
fixedValueFvPatchScalarField::typeName
);
const polyBoundaryMesh& pbm = mesh.boundaryMesh();
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
const polyPatch& pp = pbm[patchI];
const labelList& faceCells = pp.faceCells();
scalarField pfld(faceCells.size());
forAll(faceCells, i)
{
pfld[i] = cellNLayers[faceCells[i]];
}
fld.boundaryField()[patchI] == pfld;
}
Info<< indent << fld.name() << " : actual number of layers"
<< endl;
bool ok = fld.write();
allOk = allOk & ok;
}
{
volScalarField fld
(
IOobject
(
"thickness",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE,
false
),
mesh,
dimensionedScalar("zero", dimless, 0),
fixedValueFvPatchScalarField::typeName
);
const polyBoundaryMesh& pbm = mesh.boundaryMesh();
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
fld.boundaryField()[patchI] == pbm[patchI].patchSlice
(
faceRealThickness
);
}
Info<< indent << fld.name() << " : overall layer thickness"
<< endl;
bool ok = fld.write();
allOk = allOk & ok;
}
{
volScalarField fld
(
IOobject
(
"thicknessFraction",
mesh.time().timeName(),
mesh,
IOobject::NO_READ,
IOobject::AUTO_WRITE,
false
),
mesh,
dimensionedScalar("zero", dimless, 0),
fixedValueFvPatchScalarField::typeName
);
const polyBoundaryMesh& pbm = mesh.boundaryMesh();
forAll(patchIDs, i)
{
label patchI = patchIDs[i];
scalarField::subField patchWanted = pbm[patchI].patchSlice
(
faceWantedThickness
);
scalarField::subField patchReal = pbm[patchI].patchSlice
(
faceRealThickness
);
// Convert patchReal to relavtive thickness
scalarField pfld(patchReal.size(), 0.0);
forAll(patchReal, i)
{
if (patchWanted[i] > VSMALL)
{
pfld[i] = patchReal[i]/patchWanted[i];
}
}
fld.boundaryField()[patchI] == pfld;
}
Info<< indent << fld.name()
<< " : overall layer thickness (fraction"
<< " of desired thickness)" << endl;
bool ok = fld.write();
allOk = allOk & ok;
}
Info<< decrIndent<< endl;
}
//if (meshRefinement::outputLevel() & meshRefinement::OUTPUTLAYERINFO)
{
printLayerData
(
mesh,
patchIDs,
cellNLayers,
faceWantedThickness,
faceRealThickness
);
}
return allOk;
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::autoLayerDriver::autoLayerDriver
(
meshRefinement& meshRefiner,
const labelList& globalToMasterPatch,
const labelList& globalToSlavePatch
)
:
meshRefiner_(meshRefiner),
globalToMasterPatch_(globalToMasterPatch),
globalToSlavePatch_(globalToSlavePatch)
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::autoLayerDriver::mergePatchFacesUndo
(
const layerParameters& layerParams,
const dictionary& motionDict
)
{
// Clip to 30 degrees. Not helpful!
//scalar planarAngle = min(30.0, layerParams.featureAngle());
scalar planarAngle = layerParams.featureAngle();
scalar minCos = Foam::cos(degToRad(planarAngle));
scalar concaveCos = Foam::cos(degToRad(layerParams.concaveAngle()));
Info<< nl
<< "Merging all faces of a cell" << nl
<< "---------------------------" << nl
<< " - which are on the same patch" << nl
<< " - which make an angle < " << planarAngle
<< " degrees"
<< nl
<< " (cos:" << minCos << ')' << nl
<< " - as long as the resulting face doesn't become concave"
<< " by more than "
<< layerParams.concaveAngle() << " degrees" << nl
<< " (0=straight, 180=fully concave)" << nl
<< endl;
const fvMesh& mesh = meshRefiner_.mesh();
List<labelPair> couples(localPointRegion::findDuplicateFacePairs(mesh));
labelList duplicateFace(mesh.nFaces(), -1);
forAll(couples, i)
{
const labelPair& cpl = couples[i];
duplicateFace[cpl[0]] = cpl[1];
duplicateFace[cpl[1]] = cpl[0];
}
label nChanged = meshRefiner_.mergePatchFacesUndo
(
minCos,
concaveCos,
meshRefiner_.meshedPatches(),
motionDict,
duplicateFace
);
nChanged += meshRefiner_.mergeEdgesUndo(minCos, motionDict);
}
void Foam::autoLayerDriver::addLayers
(
const layerParameters& layerParams,
const dictionary& motionDict,
const labelList& patchIDs,
const label nAllowableErrors,
decompositionMethod& decomposer,
fvMeshDistribute& distributor
)
{
fvMesh& mesh = meshRefiner_.mesh();
// Create baffles (pairs of faces that share the same points)
// Baffles stored as owner and neighbour face that have been created.
List<labelPair> baffles;
meshRefiner_.createZoneBaffles
(
globalToMasterPatch_,
globalToSlavePatch_,
baffles
);
if (debug&meshRefinement::MESH)
{
const_cast<Time&>(mesh.time())++;
Info<< "Writing baffled mesh to time "
<< meshRefiner_.timeName() << endl;
meshRefiner_.write
(
meshRefinement::debugType(debug),
meshRefinement::writeType
(
meshRefinement::writeLevel()
| meshRefinement::WRITEMESH
),
mesh.time().path()/meshRefiner_.timeName()
);
}
autoPtr<indirectPrimitivePatch> pp
(
meshRefinement::makePatch
(
mesh,
patchIDs
)
);
// Global face indices engine
const globalIndex globalFaces(mesh.nFaces());
// Determine extrudePatch.edgeFaces in global numbering (so across
// coupled patches). This is used only to string up edges between coupled
// faces (all edges between same (global)face indices get extruded).
labelListList edgeGlobalFaces
(
addPatchCellLayer::globalEdgeFaces
(
mesh,
globalFaces,
pp
)
);
// Determine patches for extruded boundary edges. Calculates if any
// additional processor patches need to be constructed.
labelList sidePatchID;
determineSidePatches
(
globalFaces,
edgeGlobalFaces,
pp,
sidePatchID
);
// Point-wise extrusion data
// ~~~~~~~~~~~~~~~~~~~~~~~~~
// Displacement for all pp.localPoints.
vectorField patchDisp(pp().nPoints(), vector::one);
// Number of layers for all pp.localPoints. Note: only valid if
// extrudeStatus = EXTRUDE.
labelList patchNLayers(pp().nPoints(), 0);
// Ideal number of cells added
label nIdealTotAddedCells = 0;
// Whether to add edge for all pp.localPoints.
List<extrudeMode> extrudeStatus(pp().nPoints(), EXTRUDE);
{
// Get number of layer per point from number of layers per patch
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
setNumLayers
(
layerParams.numLayers(), // per patch the num layers
patchIDs, // patches that are being moved
pp, // indirectpatch for all faces moving
patchDisp,
patchNLayers,
extrudeStatus,
nIdealTotAddedCells
);
// Precalculate mesh edge labels for patch edges
labelList meshEdges(pp().meshEdges(mesh.edges(), mesh.pointEdges()));
// Disable extrusion on non-manifold points
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
handleNonManifolds
(
pp,
meshEdges,
edgeGlobalFaces,
patchDisp,
patchNLayers,
extrudeStatus
);
// Disable extrusion on feature angles
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
handleFeatureAngle
(
pp,
meshEdges,
degToRad(layerParams.featureAngle()),
patchDisp,
patchNLayers,
extrudeStatus
);
// Disable extrusion on warped faces
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// It is hard to calculate some length scale if not in relative
// mode so disable this check.
if (layerParams.relativeSizes())
{
// Undistorted edge length
const scalar edge0Len =
meshRefiner_.meshCutter().level0EdgeLength();
const labelList& cellLevel = meshRefiner_.meshCutter().cellLevel();
handleWarpedFaces
(
pp,
layerParams.maxFaceThicknessRatio(),
edge0Len,
cellLevel,
patchDisp,
patchNLayers,
extrudeStatus
);
}
//// Disable extrusion on cells with multiple patch faces
//// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
//handleMultiplePatchFaces
//(
// pp,
//
// patchDisp,
// patchNLayers,
// extrudeStatus
//);
// Grow out region of non-extrusion
for (label i = 0; i < layerParams.nGrow(); i++)
{
growNoExtrusion
(
pp,
patchDisp,
patchNLayers,
extrudeStatus
);
}
}
// Undistorted edge length
const scalar edge0Len = meshRefiner_.meshCutter().level0EdgeLength();
const labelList& cellLevel = meshRefiner_.meshCutter().cellLevel();
// Determine (wanted) point-wise overall layer thickness and expansion
// ratio
scalarField thickness(pp().nPoints());
scalarIOField minThickness
(
IOobject
(
"minThickness",
meshRefiner_.timeName(),
mesh,
IOobject::NO_READ
),
pp().nPoints()
);
scalarField expansionRatio(pp().nPoints());
calculateLayerThickness
(
pp,
patchIDs,
layerParams,
cellLevel,
patchNLayers,
edge0Len,
thickness,
minThickness,
expansionRatio
);
// Overall displacement field
pointVectorField displacement
(
makeLayerDisplacementField
(
pointMesh::New(mesh),
layerParams.numLayers()
)
);
// Allocate run-time selectable mesh mover
autoPtr<externalDisplacementMeshMover> medialAxisMoverPtr;
{
// Set up controls for meshMover
dictionary combinedDict(layerParams.dict());
// Add mesh quality constraints
combinedDict.merge(motionDict);
// Where to get minThickness from
combinedDict.add("minThicknessName", minThickness.name());
// Take over patchDisp as boundary conditions on displacement
// pointVectorField
medialAxisMoverPtr = externalDisplacementMeshMover::New
(
layerParams.meshShrinker(),
combinedDict,
baffles,
displacement
);
}
// Saved old points
pointField oldPoints(mesh.points());
// Current set of topology changes. (changing mesh clears out
// polyTopoChange)
polyTopoChange savedMeshMod(mesh.boundaryMesh().size());
// Per cell 0 or number of layers in the cell column it is part of
labelList cellNLayers;
// Per face actual overall layer thickness
scalarField faceRealThickness;
// Per face wanted overall layer thickness
scalarField faceWantedThickness(mesh.nFaces(), 0.0);
{
UIndirectList<scalar>(faceWantedThickness, pp().addressing()) =
avgPointData(pp, thickness);
}
for (label iteration = 0; iteration < layerParams.nLayerIter(); iteration++)
{
Info<< nl
<< "Layer addition iteration " << iteration << nl
<< "--------------------------" << endl;
// Unset the extrusion at the pp.
const dictionary& meshQualityDict =
(
iteration < layerParams.nRelaxedIter()
? motionDict
: motionDict.subDict("relaxed")
);
if (iteration >= layerParams.nRelaxedIter())
{
Info<< "Switched to relaxed meshQuality constraints." << endl;
}
// Make sure displacement is equal on both sides of coupled patches.
syncPatchDisplacement
(
pp,
minThickness,
patchDisp,
patchNLayers,
extrudeStatus
);
// Displacement acc. to pointnormals
getPatchDisplacement
(
pp,
thickness,
minThickness,
patchDisp,
patchNLayers,
extrudeStatus
);
// Shrink mesh by displacement value first.
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
{
pointField oldPatchPos(pp().localPoints());
// Take over patchDisp into pointDisplacement field and
// adjust both for multi-patch constraints
motionSmootherAlgo::setDisplacement
(
patchIDs,
pp,
patchDisp,
displacement
);
// Move mesh
// ~~~~~~~~~
// Set up controls for meshMover
dictionary combinedDict(layerParams.dict());
// Add standard quality constraints
combinedDict.merge(motionDict);
// Add relaxed constraints (overrides standard ones)
combinedDict.merge(meshQualityDict);
// Where to get minThickness from
combinedDict.add("minThicknessName", minThickness.name());
labelList checkFaces(identity(mesh.nFaces()));
medialAxisMoverPtr().move
(
combinedDict,
nAllowableErrors,
checkFaces
);
pp().movePoints(mesh.points());
// Update patchDisp (since not all might have been honoured)
patchDisp = oldPatchPos - pp().localPoints();
}
// Truncate displacements that are too small (this will do internal
// ones, coupled ones have already been truncated by
// syncPatchDisplacement)
faceSet dummySet(mesh, "wrongPatchFaces", 0);
truncateDisplacement
(
globalFaces,
edgeGlobalFaces,
pp,
minThickness,
dummySet,
patchDisp,
patchNLayers,
extrudeStatus
);
// Dump to .obj file for debugging.
if (debug&meshRefinement::MESH || debug&meshRefinement::LAYERINFO)
{
dumpDisplacement
(
mesh.time().path()/"layer_" + meshRefiner_.timeName(),
pp(),
patchDisp,
extrudeStatus
);
const_cast<Time&>(mesh.time())++;
Info<< "Writing shrunk mesh to time "
<< meshRefiner_.timeName() << endl;
// See comment in autoSnapDriver why we should not remove meshPhi
// using mesh.clearOut().
meshRefiner_.write
(
meshRefinement::debugType(debug),
meshRefinement::writeType
(
meshRefinement::writeLevel()
| meshRefinement::WRITEMESH
),
mesh.time().path()/meshRefiner_.timeName()
);
}
// Mesh topo change engine
polyTopoChange meshMod(mesh);
// Grow layer of cells on to patch. Handles zero sized displacement.
addPatchCellLayer addLayer(mesh);
// Determine per point/per face number of layers to extrude. Also
// handles the slow termination of layers when going switching layers
labelList nPatchPointLayers(pp().nPoints(), -1);
labelList nPatchFaceLayers(pp().size(), -1);
setupLayerInfoTruncation
(
pp,
patchNLayers,
extrudeStatus,
layerParams.nBufferCellsNoExtrude(),
nPatchPointLayers,
nPatchFaceLayers
);
// Calculate displacement for final layer for addPatchLayer.
// (layer of cells next to the original mesh)
vectorField finalDisp(patchNLayers.size(), vector::zero);
forAll(nPatchPointLayers, i)
{
scalar ratio = layerParams.finalLayerThicknessRatio
(
nPatchPointLayers[i],
expansionRatio[i]
);
finalDisp[i] = ratio*patchDisp[i];
}
const scalarField invExpansionRatio(1.0/expansionRatio);
// Add topo regardless of whether extrudeStatus is extruderemove.
// Not add layer if patchDisp is zero.
addLayer.setRefinement
(
globalFaces,
edgeGlobalFaces,
invExpansionRatio,
pp(),
sidePatchID, // boundary patch for extruded boundary edges
labelList(0), // exposed patchIDs, not used for adding layers
nPatchFaceLayers, // layers per face
nPatchPointLayers, // layers per point
finalDisp, // thickness of layer nearest internal mesh
meshMod
);
if (debug)
{
const_cast<Time&>(mesh.time())++;
}
// Store mesh changes for if mesh is correct.
savedMeshMod = meshMod;
// With the stored topo changes we create a new mesh so we can
// undo if neccesary.
autoPtr<fvMesh> newMeshPtr;
autoPtr<mapPolyMesh> map = meshMod.makeMesh
(
newMeshPtr,
IOobject
(
//mesh.name()+"_layer",
mesh.name(),
static_cast<polyMesh&>(mesh).instance(),
mesh.time(), // register with runTime
IOobject::NO_READ,
static_cast<polyMesh&>(mesh).writeOpt()
), // io params from original mesh but new name
mesh, // original mesh
true // parallel sync
);
fvMesh& newMesh = newMeshPtr();
//?neccesary? Update fields
newMesh.updateMesh(map);
newMesh.setInstance(meshRefiner_.timeName());
// Update numbering on addLayer:
// - cell/point labels to be newMesh.
// - patchFaces to remain in oldMesh order.
addLayer.updateMesh
(
map,
identity(pp().size()),
identity(pp().nPoints())
);
// Update numbering of baffles
List<labelPair> newMeshBaffles(baffles.size());
forAll(baffles, i)
{
const labelPair& p = baffles[i];
newMeshBaffles[i][0] = map().reverseFaceMap()[p[0]];
newMeshBaffles[i][1] = map().reverseFaceMap()[p[1]];
}
// Collect layer faces and cells for outside loop.
getLayerCellsFaces
(
newMesh,
addLayer,
avgPointData(pp, mag(patchDisp))(), // current thickness
cellNLayers,
faceRealThickness
);
// Count number of added cells
label nAddedCells = 0;
forAll(cellNLayers, cellI)
{
if (cellNLayers[cellI] > 0)
{
nAddedCells++;
}
}
if (debug&meshRefinement::MESH)
{
Info<< "Writing layer mesh to time " << meshRefiner_.timeName()
<< endl;
newMesh.write();
cellSet addedCellSet(newMesh, "addedCells", nAddedCells);
forAll(cellNLayers, cellI)
{
if (cellNLayers[cellI] > 0)
{
addedCellSet.insert(cellI);
}
}
addedCellSet.instance() = meshRefiner_.timeName();
Info<< "Writing "
<< returnReduce(addedCellSet.size(), sumOp<label>())
<< " added cells to cellSet " << addedCellSet.name() << endl;
addedCellSet.write();
faceSet layerFacesSet(newMesh, "layerFaces", newMesh.nFaces()/100);
forAll(faceRealThickness, faceI)
{
if (faceRealThickness[faceI] > 0)
{
layerFacesSet.insert(faceI);
}
}
layerFacesSet.instance() = meshRefiner_.timeName();
Info<< "Writing "
<< returnReduce(layerFacesSet.size(), sumOp<label>())
<< " faces inside added layer to faceSet "
<< layerFacesSet.name() << endl;
layerFacesSet.write();
}
label nTotChanged = checkAndUnmark
(
addLayer,
meshQualityDict,
layerParams.additionalReporting(),
newMeshBaffles,
pp(),
newMesh,
patchDisp,
patchNLayers,
extrudeStatus
);
label nTotExtruded = countExtrusion(pp, extrudeStatus);
label nTotFaces = returnReduce(pp().size(), sumOp<label>());
label nTotAddedCells = returnReduce(nAddedCells, sumOp<label>());
Info<< "Extruding " << nTotExtruded
<< " out of " << nTotFaces
<< " faces (" << 100.0*nTotExtruded/nTotFaces << "%)."
<< " Removed extrusion at " << nTotChanged << " faces."
<< endl
<< "Added " << nTotAddedCells << " out of " << nIdealTotAddedCells
<< " cells (" << 100.0*nTotAddedCells/nIdealTotAddedCells << "%)."
<< endl;
if (nTotChanged == 0)
{
break;
}
// Reset mesh points and start again
mesh.movePoints(oldPoints);
pp().movePoints(mesh.points());
// Grow out region of non-extrusion
for (label i = 0; i < layerParams.nGrow(); i++)
{
growNoExtrusion
(
pp,
patchDisp,
patchNLayers,
extrudeStatus
);
}
Info<< endl;
}
// At this point we have a (shrunk) mesh and a set of topology changes
// which will make a valid mesh with layer. Apply these changes to the
// current mesh.
// Apply the stored topo changes to the current mesh.
autoPtr<mapPolyMesh> map = savedMeshMod.changeMesh(mesh, false);
// Hack to remove meshPhi - mapped incorrectly. TBD.
mesh.clearOut();
// Update fields
mesh.updateMesh(map);
// Move mesh (since morphing does not do this)
if (map().hasMotionPoints())
{
mesh.movePoints(map().preMotionPoints());
}
else
{
// Delete mesh volumes.
mesh.clearOut();
}
// Reset the instance for if in overwrite mode
mesh.setInstance(meshRefiner_.timeName());
meshRefiner_.updateMesh(map, labelList(0));
// Update numbering of faceWantedThickness
meshRefinement::updateList(map().faceMap(), scalar(0), faceWantedThickness);
// Update numbering on baffles
forAll(baffles, i)
{
labelPair& p = baffles[i];
p[0] = map().reverseFaceMap()[p[0]];
p[1] = map().reverseFaceMap()[p[1]];
}
label nBaffles = returnReduce(baffles.size(), sumOp<label>());
if (nBaffles > 0)
{
// Merge any baffles
Info<< "Converting " << nBaffles
<< " baffles back into zoned faces ..."
<< endl;
autoPtr<mapPolyMesh> map = meshRefiner_.mergeBaffles(baffles);
inplaceReorder(map().reverseCellMap(), cellNLayers);
inplaceReorder(map().reverseFaceMap(), faceWantedThickness);
inplaceReorder(map().reverseFaceMap(), faceRealThickness);
Info<< "Converted baffles in = "
<< meshRefiner_.mesh().time().cpuTimeIncrement()
<< " s\n" << nl << endl;
}
// Do final balancing
// ~~~~~~~~~~~~~~~~~~
if (Pstream::parRun())
{
Info<< nl
<< "Doing final balancing" << nl
<< "---------------------" << nl
<< endl;
if (debug)
{
const_cast<Time&>(mesh.time())++;
}
// Balance. No restriction on face zones and baffles.
autoPtr<mapDistributePolyMesh> map = meshRefiner_.balance
(
false,
false,
scalarField(mesh.nCells(), 1.0),
decomposer,
distributor
);
// Re-distribute flag of layer faces and cells
map().distributeCellData(cellNLayers);
map().distributeFaceData(faceWantedThickness);
map().distributeFaceData(faceRealThickness);
}
// Write mesh data
// ~~~~~~~~~~~~~~~
writeLayerData
(
mesh,
patchIDs,
cellNLayers,
faceWantedThickness,
faceRealThickness
);
}
void Foam::autoLayerDriver::doLayers
(
const dictionary& shrinkDict,
const dictionary& motionDict,
const layerParameters& layerParams,
const bool preBalance,
decompositionMethod& decomposer,
fvMeshDistribute& distributor
)
{
const fvMesh& mesh = meshRefiner_.mesh();
Info<< nl
<< "Shrinking and layer addition phase" << nl
<< "----------------------------------" << nl
<< endl;
Info<< "Using mesh parameters " << motionDict << nl << endl;
// Merge coplanar boundary faces
mergePatchFacesUndo(layerParams, motionDict);
// Per patch the number of layers (-1 or 0 if no layer)
const labelList& numLayers = layerParams.numLayers();
// Patches that need to get a layer
DynamicList<label> patchIDs(numLayers.size());
label nFacesWithLayers = 0;
forAll(numLayers, patchI)
{
if (numLayers[patchI] > 0)
{
const polyPatch& pp = mesh.boundaryMesh()[patchI];
if (!pp.coupled())
{
patchIDs.append(patchI);
nFacesWithLayers += mesh.boundaryMesh()[patchI].size();
}
else
{
WarningIn("autoLayerDriver::doLayers(..)")
<< "Ignoring layers on coupled patch " << pp.name()
<< endl;
}
}
}
patchIDs.shrink();
if (returnReduce(nFacesWithLayers, sumOp<label>()) == 0)
{
Info<< nl << "No layers to generate ..." << endl;
}
else
{
// Check that outside of mesh is not multiply connected.
checkMeshManifold();
// Check initial mesh
Info<< "Checking initial mesh ..." << endl;
labelHashSet wrongFaces(mesh.nFaces()/100);
motionSmoother::checkMesh(false, mesh, motionDict, wrongFaces);
const label nInitErrors = returnReduce
(
wrongFaces.size(),
sumOp<label>()
);
Info<< "Detected " << nInitErrors << " illegal faces"
<< " (concave, zero area or negative cell pyramid volume)"
<< endl;
// Balance
if (Pstream::parRun() && preBalance)
{
Info<< nl
<< "Doing initial balancing" << nl
<< "-----------------------" << nl
<< endl;
scalarField cellWeights(mesh.nCells(), 1);
forAll(numLayers, patchI)
{
if (numLayers[patchI] > 0)
{
const polyPatch& pp = mesh.boundaryMesh()[patchI];
forAll(pp.faceCells(), i)
{
cellWeights[pp.faceCells()[i]] += numLayers[patchI];
}
}
}
// Balance mesh (and meshRefinement). Restrict faceZones to
// be on internal faces only since they will be converted into
// baffles.
autoPtr<mapDistributePolyMesh> map = meshRefiner_.balance
(
true, //false, // keepZoneFaces
false,
cellWeights,
decomposer,
distributor
);
}
// Do all topo changes
addLayers
(
layerParams,
motionDict,
patchIDs,
nInitErrors,
decomposer,
distributor
);
}
}
// ************************************************************************* //
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