label addFaceZone(const polyMesh& mesh, const word& name)
{
label zoneID = mesh.faceZones().findZoneID(name);
if (zoneID != -1)
{
Info<< "Reusing existing faceZone " << mesh.faceZones()[zoneID].name()
<< " at index " << zoneID << endl;
}
else
{
faceZoneMesh& faceZones = const_cast<polyMesh&>(mesh).faceZones();
zoneID = faceZones.size();
Info<< "Adding faceZone " << name << " at index " << zoneID << endl;
faceZones.setSize(zoneID+1);
faceZones.set
(
zoneID,
new faceZone
(
name,
labelList(0),
boolList(),
zoneID,
faceZones
)
);
}
return zoneID;
}
void Foam::meshReader::addFaceZones(polyMesh& mesh) const
{
label nZone = monitoringSets_.size();
mesh.faceZones().setSize(nZone);
if (!nZone)
{
return;
}
nZone = 0;
for
(
HashTable<List<label>, word, string::hash>::const_iterator
iter = monitoringSets_.begin();
iter != monitoringSets_.end();
++iter
)
{
Info<< "faceZone " << nZone
<< " (size: " << iter().size() << ") name: "
<< iter.key() << endl;
mesh.faceZones().set
(
nZone,
new faceZone
(
iter.key(),
iter(),
List<bool>(iter().size(), false),
nZone,
mesh.faceZones()
)
);
nZone++;
}
mesh.faceZones().writeOpt() = IOobject::AUTO_WRITE;
warnDuplicates("faceZones", mesh.faceZones().names());
}
// Naive feature detection. All boundary edges with angle > featureAngle become
// feature edges. All points on feature edges become feature points. All
// boundary faces become feature faces.
void simpleMarkFeatures
(
const polyMesh& mesh,
const PackedBoolList& isBoundaryEdge,
const scalar featureAngle,
const bool concaveMultiCells,
const bool doNotPreserveFaceZones,
labelList& featureFaces,
labelList& featureEdges,
labelList& singleCellFeaturePoints,
labelList& multiCellFeaturePoints
)
{
scalar minCos = Foam::cos(featureAngle * mathematicalConstant::pi/180.0);
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// Working sets
labelHashSet featureEdgeSet;
labelHashSet singleCellFeaturePointSet;
labelHashSet multiCellFeaturePointSet;
// 1. Mark all edges between patches
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
forAll(patches, patchI)
{
const polyPatch& pp = patches[patchI];
const labelList& meshEdges = pp.meshEdges();
// All patch corner edges. These need to be feature points & edges!
for (label edgeI = pp.nInternalEdges(); edgeI < pp.nEdges(); edgeI++)
{
label meshEdgeI = meshEdges[edgeI];
featureEdgeSet.insert(meshEdgeI);
singleCellFeaturePointSet.insert(mesh.edges()[meshEdgeI][0]);
singleCellFeaturePointSet.insert(mesh.edges()[meshEdgeI][1]);
}
}
// 2. Mark all geometric feature edges
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
// Make distinction between convex features where the boundary point becomes
// a single cell and concave features where the boundary point becomes
// multiple 'half' cells.
// Addressing for all outside faces
primitivePatch allBoundary
(
SubList<face>
(
mesh.faces(),
mesh.nFaces()-mesh.nInternalFaces(),
mesh.nInternalFaces()
),
mesh.points()
);
// Check for non-manifold points (surface pinched at point)
allBoundary.checkPointManifold(false, &singleCellFeaturePointSet);
// Check for non-manifold edges (surface pinched at edge)
const labelListList& edgeFaces = allBoundary.edgeFaces();
const labelList& meshPoints = allBoundary.meshPoints();
forAll(edgeFaces, edgeI)
{
const labelList& eFaces = edgeFaces[edgeI];
if (eFaces.size() > 2)
{
const edge& e = allBoundary.edges()[edgeI];
//Info<< "Detected non-manifold boundary edge:" << edgeI
// << " coords:"
// << allBoundary.points()[meshPoints[e[0]]]
// << allBoundary.points()[meshPoints[e[1]]] << endl;
singleCellFeaturePointSet.insert(meshPoints[e[0]]);
singleCellFeaturePointSet.insert(meshPoints[e[1]]);
}
}
// Check for features.
forAll(edgeFaces, edgeI)
{
const labelList& eFaces = edgeFaces[edgeI];
if (eFaces.size() == 2)
{
label f0 = eFaces[0];
label f1 = eFaces[1];
// check angle
const vector& n0 = allBoundary.faceNormals()[f0];
const vector& n1 = allBoundary.faceNormals()[f1];
if ((n0 & n1) < minCos)
{
const edge& e = allBoundary.edges()[edgeI];
label v0 = meshPoints[e[0]];
label v1 = meshPoints[e[1]];
label meshEdgeI = meshTools::findEdge(mesh, v0, v1);
featureEdgeSet.insert(meshEdgeI);
// Check if convex or concave by looking at angle
// between face centres and normal
vector c1c0
(
allBoundary[f1].centre(allBoundary.points())
- allBoundary[f0].centre(allBoundary.points())
);
if (concaveMultiCells && (c1c0 & n0) > SMALL)
{
// Found concave edge. Make into multiCell features
Info<< "Detected concave feature edge:" << edgeI
<< " cos:" << (c1c0 & n0)
<< " coords:"
<< allBoundary.points()[v0]
<< allBoundary.points()[v1]
<< endl;
singleCellFeaturePointSet.erase(v0);
multiCellFeaturePointSet.insert(v0);
singleCellFeaturePointSet.erase(v1);
multiCellFeaturePointSet.insert(v1);
}
else
{
// Convex. singleCell feature.
if (!multiCellFeaturePointSet.found(v0))
{
singleCellFeaturePointSet.insert(v0);
}
if (!multiCellFeaturePointSet.found(v1))
{
singleCellFeaturePointSet.insert(v1);
}
}
}
}
}
// 3. Mark all feature faces
// ~~~~~~~~~~~~~~~~~~~~~~~~~
// Face centres that need inclusion in the dual mesh
labelHashSet featureFaceSet(mesh.nFaces()-mesh.nInternalFaces());
// A. boundary faces.
for (label faceI = mesh.nInternalFaces(); faceI < mesh.nFaces(); faceI++)
{
featureFaceSet.insert(faceI);
}
// B. face zones.
const faceZoneMesh& faceZones = mesh.faceZones();
if (doNotPreserveFaceZones)
{
if (faceZones.size() > 0)
{
WarningIn("simpleMarkFeatures(..)")
<< "Detected " << faceZones.size()
<< " faceZones. These will not be preserved."
<< endl;
}
}
else
{
if (faceZones.size() > 0)
{
Info<< "Detected " << faceZones.size()
<< " faceZones. Preserving these by marking their"
<< " points, edges and faces as features." << endl;
}
forAll(faceZones, zoneI)
{
const faceZone& fz = faceZones[zoneI];
Info<< "Inserting all faces in faceZone " << fz.name()
<< " as features." << endl;
forAll(fz, i)
{
label faceI = fz[i];
const face& f = mesh.faces()[faceI];
const labelList& fEdges = mesh.faceEdges()[faceI];
featureFaceSet.insert(faceI);
forAll(f, fp)
{
// Mark point as multi cell point (since both sides of
// face should have different cells)
singleCellFeaturePointSet.erase(f[fp]);
multiCellFeaturePointSet.insert(f[fp]);
// Make sure there are points on the edges.
featureEdgeSet.insert(fEdges[fp]);
}
}
}
Foam::displacementInterpolationFvMotionSolver::
displacementInterpolationFvMotionSolver
(
const polyMesh& mesh,
Istream& is
)
:
displacementFvMotionSolver(mesh, is),
dynamicMeshCoeffs_
(
IOdictionary
(
IOobject
(
"dynamicMeshDict",
mesh.time().constant(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE,
false
)
).subDict(typeName + "Coeffs")
)
{
// Get zones and their interpolation tables for displacement
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
List<Pair<word> > faceZoneToTable
(
dynamicMeshCoeffs_.lookup("interpolationTables")
);
const faceZoneMesh& fZones = mesh.faceZones();
times_.setSize(fZones.size());
displacements_.setSize(fZones.size());
forAll(faceZoneToTable, i)
{
const word& zoneName = faceZoneToTable[i][0];
label zoneI = fZones.findZoneID(zoneName);
if (zoneI == -1)
{
FatalErrorIn
(
"displacementInterpolationFvMotionSolver::"
"displacementInterpolationFvMotionSolver(const polyMesh&,"
"Istream&)"
) << "Cannot find zone " << zoneName << endl
<< "Valid zones are " << mesh.faceZones().names()
<< exit(FatalError);
}
const word& tableName = faceZoneToTable[i][1];
IOList<Tuple2<scalar, vector> > table
(
IOobject
(
tableName,
mesh.time().constant(),
"tables",
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE,
false
)
);
// Copy table
times_[zoneI].setSize(table.size());
displacements_[zoneI].setSize(table.size());
forAll(table, j)
{
times_[zoneI][j] = table[j].first();
displacements_[zoneI][j] = table[j].second();
}
}
void Foam::printMeshStats(const polyMesh& mesh, const bool allTopology)
{
Info<< "Mesh stats" << nl
<< " points: "
<< returnReduce(mesh.points().size(), sumOp<label>()) << nl;
label nInternalPoints = returnReduce
(
mesh.nInternalPoints(),
sumOp<label>()
);
if (nInternalPoints != -Pstream::nProcs())
{
Info<< " internal points: " << nInternalPoints << nl;
if (returnReduce(mesh.nInternalPoints(), minOp<label>()) == -1)
{
WarningIn("Foam::printMeshStats(const polyMesh&, const bool)")
<< "Some processors have their points sorted into internal"
<< " and external and some do not." << endl
<< "This can cause problems later on." << endl;
}
}
if (allTopology && nInternalPoints != -Pstream::nProcs())
{
label nEdges = returnReduce(mesh.nEdges(), sumOp<label>());
label nInternalEdges = returnReduce
(
mesh.nInternalEdges(),
sumOp<label>()
);
label nInternal1Edges = returnReduce
(
mesh.nInternal1Edges(),
sumOp<label>()
);
label nInternal0Edges = returnReduce
(
mesh.nInternal0Edges(),
sumOp<label>()
);
Info<< " edges: " << nEdges << nl
<< " internal edges: " << nInternalEdges << nl
<< " internal edges using one boundary point: "
<< nInternal1Edges-nInternal0Edges << nl
<< " internal edges using two boundary points: "
<< nInternalEdges-nInternal1Edges << nl;
}
label nFaces = returnReduce(mesh.faces().size(), sumOp<label>());
label nIntFaces = returnReduce(mesh.faceNeighbour().size(), sumOp<label>());
label nCells = returnReduce(mesh.cells().size(), sumOp<label>());
Info<< " faces: " << nFaces << nl
<< " internal faces: " << nIntFaces << nl
<< " cells: " << nCells << nl
<< " faces per cell: "
<< scalar(nFaces + nIntFaces)/max(1, nCells) << nl
<< " boundary patches: " << mesh.boundaryMesh().size() << nl
<< " point zones: " << mesh.pointZones().size() << nl
<< " face zones: " << mesh.faceZones().size() << nl
<< " cell zones: " << mesh.cellZones().size() << nl
<< endl;
// Construct shape recognizers
hexMatcher hex;
prismMatcher prism;
wedgeMatcher wedge;
pyrMatcher pyr;
tetWedgeMatcher tetWedge;
tetMatcher tet;
// Counters for different cell types
label nHex = 0;
label nWedge = 0;
label nPrism = 0;
label nPyr = 0;
label nTet = 0;
label nTetWedge = 0;
label nUnknown = 0;
Map<label> polyhedralFaces;
for (label cellI = 0; cellI < mesh.nCells(); cellI++)
{
if (hex.isA(mesh, cellI))
{
nHex++;
}
else if (tet.isA(mesh, cellI))
{
nTet++;
}
else if (pyr.isA(mesh, cellI))
{
nPyr++;
}
else if (prism.isA(mesh, cellI))
{
nPrism++;
}
else if (wedge.isA(mesh, cellI))
{
nWedge++;
}
else if (tetWedge.isA(mesh, cellI))
{
nTetWedge++;
}
else
{
nUnknown++;
polyhedralFaces(mesh.cells()[cellI].size())++;
}
}
reduce(nHex,sumOp<label>());
reduce(nPrism,sumOp<label>());
reduce(nWedge,sumOp<label>());
reduce(nPyr,sumOp<label>());
reduce(nTetWedge,sumOp<label>());
reduce(nTet,sumOp<label>());
reduce(nUnknown,sumOp<label>());
Info<< "Overall number of cells of each type:" << nl
<< " hexahedra: " << nHex << nl
<< " prisms: " << nPrism << nl
<< " wedges: " << nWedge << nl
<< " pyramids: " << nPyr << nl
<< " tet wedges: " << nTetWedge << nl
<< " tetrahedra: " << nTet << nl
<< " polyhedra: " << nUnknown
<< endl;
if (nUnknown > 0)
{
Pstream::mapCombineGather(polyhedralFaces, plusEqOp<label>());
Info<< " Breakdown of polyhedra by number of faces:" << nl
<< " faces" << " number of cells" << endl;
const labelList sortedKeys = polyhedralFaces.sortedToc();
forAll(sortedKeys, keyI)
{
const label nFaces = sortedKeys[keyI];
Info<< setf(std::ios::right) << setw(13)
<< nFaces << " " << polyhedralFaces[nFaces] << nl;
}
}
void insertDuplicateMerge
(
const polyMesh& mesh,
const labelList& duplicates,
polyTopoChange& meshMod
)
{
const faceList& faces = mesh.faces();
const labelList& faceOwner = mesh.faceOwner();
const faceZoneMesh& faceZones = mesh.faceZones();
forAll(duplicates, bFacei)
{
label otherFacei = duplicates[bFacei];
if (otherFacei != -1 && otherFacei > bFacei)
{
// Two duplicate faces. Merge.
label face0 = mesh.nInternalFaces() + bFacei;
label face1 = mesh.nInternalFaces() + otherFacei;
label own0 = faceOwner[face0];
label own1 = faceOwner[face1];
if (own0 < own1)
{
// Use face0 as the new internal face.
label zoneID = faceZones.whichZone(face0);
bool zoneFlip = false;
if (zoneID >= 0)
{
const faceZone& fZone = faceZones[zoneID];
zoneFlip = fZone.flipMap()[fZone.whichFace(face0)];
}
meshMod.setAction(polyRemoveFace(face1));
meshMod.setAction
(
polyModifyFace
(
faces[face0], // modified face
face0, // label of face being modified
own0, // owner
own1, // neighbour
false, // face flip
-1, // patch for face
false, // remove from zone
zoneID, // zone for face
zoneFlip // face flip in zone
)
);
}
else
{
// Use face1 as the new internal face.
label zoneID = faceZones.whichZone(face1);
bool zoneFlip = false;
if (zoneID >= 0)
{
const faceZone& fZone = faceZones[zoneID];
zoneFlip = fZone.flipMap()[fZone.whichFace(face1)];
}
meshMod.setAction(polyRemoveFace(face0));
meshMod.setAction
(
polyModifyFace
(
faces[face1], // modified face
face1, // label of face being modified
own1, // owner
own0, // neighbour
false, // face flip
-1, // patch for face
false, // remove from zone
zoneID, // zone for face
zoneFlip // face flip in zone
)
);
}
}
}
