Files
OpenFOAM-12/applications/utilities/mesh/manipulation/createPatch/createPatch.C
Henry Weller a833a81560 polyTopoChange: Removed restrictive faceZone functionality
Now faceZones are handled directly by the applications and the new
faceZone::topoChange function so that any face can now be in any number of
zones, significantly increasing the flexibility and usefulness of faceZones.

This completes the generalisation of cellZone, faceZone and pointZone to support
multiple zones for each cell, face or point respectively.  Next step will be to
make zones polymorphic and run-time selectable so that they can alter during the
run and adapt to moving meshes for example.
2024-03-25 14:32:59 +00:00

735 lines
21 KiB
C++

/*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2024 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/>.
Application
createPatch
Description
Utility to create patches out of selected boundary faces. Faces come either
from existing patches or from a faceSet.
More specifically it:
- Creates new patches from selected boundary faces
- Synchronises faces on coupled patches
- Synchronises points on coupled patches (optional)
- Removes non-constraint patches with no faces
\*---------------------------------------------------------------------------*/
#include "cyclicPolyPatch.H"
#include "syncTools.H"
#include "argList.H"
#include "polyMesh.H"
#include "Time.H"
#include "SortableList.H"
#include "OFstream.H"
#include "meshTools.H"
#include "faceSet.H"
#include "polyTopoChange.H"
#include "wordReList.H"
#include "systemDict.H"
using namespace Foam;
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
void changePatchID
(
const polyMesh& mesh,
const label faceID,
const label patchID,
polyTopoChange& meshMod
)
{
meshMod.modifyFace
(
mesh.faces()[faceID], // face
faceID, // face ID
mesh.faceOwner()[faceID], // owner
-1, // neighbour
false, // flip flux
patchID // patch ID
);
}
// Filter out the empty patches.
void filterPatches(polyMesh& mesh, const HashSet<word>& addedPatchNames)
{
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// Patches to keep
DynamicList<polyPatch*> allPatches(patches.size());
label nOldPatches = returnReduce(patches.size(), sumOp<label>());
// Copy old patches.
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
// Note: reduce possible since non-proc patches guaranteed in same order
if (!isA<processorPolyPatch>(pp))
{
// Add if
// - listed in createPatchDict
// - or constraint type
// - or non zero size
if
(
addedPatchNames.found(pp.name())
|| polyPatch::constraintType(pp.type())
|| returnReduce(pp.size(), sumOp<label>()) > 0
)
{
allPatches.append
(
pp.clone
(
patches,
allPatches.size(),
pp.size(),
pp.start()
).ptr()
);
}
else
{
Info<< "Removing zero-sized patch " << pp.name()
<< " type " << pp.type()
<< " at position " << patchi << endl;
}
}
}
// Copy non-empty processor patches
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if (isA<processorPolyPatch>(pp))
{
if (pp.size())
{
allPatches.append
(
pp.clone
(
patches,
allPatches.size(),
pp.size(),
pp.start()
).ptr()
);
}
else
{
Info<< "Removing empty processor patch " << pp.name()
<< " at position " << patchi << endl;
}
}
}
label nAllPatches = returnReduce(allPatches.size(), sumOp<label>());
if (nAllPatches != nOldPatches)
{
Info<< "Removing patches." << endl;
allPatches.shrink();
mesh.removeBoundary();
mesh.addPatches(allPatches);
}
else
{
Info<< "No patches removed." << endl;
forAll(allPatches, i)
{
delete allPatches[i];
}
}
}
// Write current match for all patches the as OBJ files
void writeCyclicMatchObjs(const fileName& prefix, const polyMesh& mesh)
{
const polyBoundaryMesh& patches = mesh.boundaryMesh();
forAll(patches, patchi)
{
if
(
isA<cyclicPolyPatch>(patches[patchi])
&& refCast<const cyclicPolyPatch>(patches[patchi]).owner()
)
{
const cyclicPolyPatch& cycPatch =
refCast<const cyclicPolyPatch>(patches[patchi]);
// Write patches
{
OFstream str(prefix+cycPatch.name() + ".obj");
Pout<< "Writing " << cycPatch.name()
<< " faces to " << str.name() << endl;
meshTools::writeOBJ
(
str,
cycPatch,
cycPatch.points()
);
}
const cyclicPolyPatch& nbrPatch = cycPatch.nbrPatch();
{
OFstream str(prefix+nbrPatch.name()+".obj");
Pout<< "Writing " << nbrPatch.name()
<< " faces to " << str.name() << endl;
meshTools::writeOBJ
(
str,
nbrPatch,
nbrPatch.points()
);
}
// Lines between corresponding face centres
OFstream str(prefix+cycPatch.name()+nbrPatch.name()+"_match.obj");
label vertI = 0;
Pout<< "Writing cyclic match as lines between face centres to "
<< str.name() << endl;
forAll(cycPatch, facei)
{
const point& fc0 = mesh.faceCentres()[cycPatch.start()+facei];
meshTools::writeOBJ(str, fc0);
vertI++;
const point& fc1 = mesh.faceCentres()[nbrPatch.start()+facei];
meshTools::writeOBJ(str, fc1);
vertI++;
str<< "l " << vertI-1 << ' ' << vertI << nl;
}
}
}
}
// Synchronise points on both sides of coupled boundaries.
template<class CombineOp>
void syncPoints
(
const polyMesh& mesh,
pointField& points,
const CombineOp& cop,
const point& nullValue
)
{
if (points.size() != mesh.nPoints())
{
FatalErrorInFunction
<< "Number of values " << points.size()
<< " is not equal to the number of points in the mesh "
<< mesh.nPoints() << abort(FatalError);
}
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// Is there any coupled patch with transformation?
bool hasTransformation = false;
if (Pstream::parRun())
{
// Send
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if
(
isA<processorPolyPatch>(pp)
&& pp.nPoints() > 0
&& refCast<const processorPolyPatch>(pp).owner()
)
{
const processorPolyPatch& procPatch =
refCast<const processorPolyPatch>(pp);
// Get data per patchPoint in neighbouring point numbers.
pointField patchInfo(procPatch.nPoints(), nullValue);
const labelList& meshPts = procPatch.meshPoints();
const labelList& nbrPts = procPatch.nbrPoints();
forAll(nbrPts, pointi)
{
label nbrPointi = nbrPts[pointi];
if (nbrPointi >= 0 && nbrPointi < patchInfo.size())
{
patchInfo[nbrPointi] = points[meshPts[pointi]];
}
}
OPstream toNbr
(
Pstream::commsTypes::blocking,
procPatch.neighbProcNo()
);
toNbr << patchInfo;
}
}
// Receive and set.
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if
(
isA<processorPolyPatch>(pp)
&& pp.nPoints() > 0
&& !refCast<const processorPolyPatch>(pp).owner()
)
{
const processorPolyPatch& procPatch =
refCast<const processorPolyPatch>(pp);
pointField nbrPatchInfo(procPatch.nPoints());
{
// We do not know the number of points on the other side
// so cannot use Pstream::read.
IPstream fromNbr
(
Pstream::commsTypes::blocking,
procPatch.neighbProcNo()
);
fromNbr >> nbrPatchInfo;
}
// Null any value which is not on neighbouring processor
nbrPatchInfo.setSize(procPatch.nPoints(), nullValue);
if (procPatch.transform().transformsPosition())
{
hasTransformation = true;
procPatch.transform().transformPosition
(
nbrPatchInfo,
nbrPatchInfo
);
}
const labelList& meshPts = procPatch.meshPoints();
forAll(meshPts, pointi)
{
label meshPointi = meshPts[pointi];
points[meshPointi] = nbrPatchInfo[pointi];
}
}
}
}
// Do the cyclics.
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if
(
isA<cyclicPolyPatch>(pp)
&& refCast<const cyclicPolyPatch>(pp).owner()
)
{
const cyclicPolyPatch& cycPatch =
refCast<const cyclicPolyPatch>(pp);
const edgeList& coupledPoints = cycPatch.coupledPoints();
const labelList& meshPts = cycPatch.meshPoints();
const cyclicPolyPatch& nbrPatch = cycPatch.nbrPatch();
const labelList& nbrMeshPts = nbrPatch.meshPoints();
pointField patchPoints(coupledPoints.size());
forAll(coupledPoints, i)
{
const edge& e = coupledPoints[i];
label point0 = meshPts[e[0]];
patchPoints[i] = points[point0];
}
if (cycPatch.transform().transformsPosition())
{
hasTransformation = true;
cycPatch.transform().invTransformPosition
(
patchPoints,
patchPoints
);
}
forAll(coupledPoints, i)
{
const edge& e = coupledPoints[i];
label point1 = nbrMeshPts[e[1]];
points[point1] = patchPoints[i];
}
}
}
//- Note: hasTransformation is only used for warning messages so
// reduction not strictly necessary.
// reduce(hasTransformation, orOp<bool>());
// Synchronise multiple shared points.
const globalMeshData& pd = mesh.globalData();
if (pd.nGlobalPoints() > 0)
{
if (hasTransformation)
{
WarningInFunction
<< "There are decomposed cyclics in this mesh with"
<< " transformations." << endl
<< "This is not supported. The result will be incorrect"
<< endl;
}
// Values on shared points.
pointField sharedPts(pd.nGlobalPoints(), nullValue);
forAll(pd.sharedPointLabels(), i)
{
label meshPointi = pd.sharedPointLabels()[i];
// Fill my entries in the shared points
sharedPts[pd.sharedPointAddr()[i]] = points[meshPointi];
}
// Combine on master.
Pstream::listCombineGather(sharedPts, cop);
Pstream::listCombineScatter(sharedPts);
// Now we will all have the same information. Merge it back with
// my local information.
forAll(pd.sharedPointLabels(), i)
{
label meshPointi = pd.sharedPointLabels()[i];
points[meshPointi] = sharedPts[pd.sharedPointAddr()[i]];
}
}
}
int main(int argc, char *argv[])
{
#include "addOverwriteOption.H"
#include "addRegionOption.H"
#include "addDictOption.H"
#include "setRootCase.H"
#include "createTimeNoFunctionObjects.H"
Foam::word meshRegionName = polyMesh::defaultRegion;
args.optionReadIfPresent("region", meshRegionName);
const bool overwrite = args.optionFound("overwrite");
#include "createNamedPolyMesh.H"
const word oldInstance = mesh.pointsInstance();
const dictionary dict(systemDict("createPatchDict", args, mesh));
// Whether to write cyclic matches to .OBJ files
const Switch writeCyclicMatch
(
dict.lookupOrDefault("writeCyclicMatch", false)
);
const polyBoundaryMesh& patches = mesh.boundaryMesh();
// If running parallel check same patches everywhere
patches.checkParallelSync(true);
if (writeCyclicMatch)
{
writeCyclicMatchObjs("initial_", mesh);
}
// Read patch construct info from dictionary
PtrList<dictionary> patchSources(dict.lookup("patches"));
HashSet<word> addedPatchNames;
forAll(patchSources, addedI)
{
const dictionary& dict = patchSources[addedI];
addedPatchNames.insert(dict.lookup<word>("name"));
}
// 1. Add all new patches
// ~~~~~~~~~~~~~~~~~~~~~~
if (patchSources.size())
{
// Old and new patches.
DynamicList<polyPatch*> allPatches(patches.size()+patchSources.size());
label startFacei = mesh.nInternalFaces();
// Copy old patches.
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if (!isA<processorPolyPatch>(pp))
{
allPatches.append
(
pp.clone
(
patches,
patchi,
pp.size(),
startFacei
).ptr()
);
startFacei += pp.size();
}
}
forAll(patchSources, addedI)
{
const dictionary& dict = patchSources[addedI];
word patchName(dict.lookup("name"));
label destPatchi = patches.findIndex(patchName);
if (destPatchi == -1)
{
dictionary patchDict(dict.subDict("patchInfo"));
destPatchi = allPatches.size();
Info<< "Adding new patch " << patchName
<< " as patch " << destPatchi
<< " from " << patchDict << endl;
patchDict.set("nFaces", 0);
patchDict.set("startFace", startFacei);
// Add an empty patch.
allPatches.append
(
polyPatch::New
(
patchName,
patchDict,
destPatchi,
patches
).ptr()
);
}
else
{
Info<< "Patch '" << patchName << "' already exists. Only "
<< "moving patch faces - type will remain the same" << endl;
}
}
// Copy old patches.
forAll(patches, patchi)
{
const polyPatch& pp = patches[patchi];
if (isA<processorPolyPatch>(pp))
{
allPatches.append
(
pp.clone
(
patches,
patchi,
pp.size(),
startFacei
).ptr()
);
startFacei += pp.size();
}
}
allPatches.shrink();
mesh.removeBoundary();
mesh.addPatches(allPatches);
Info<< endl;
}
// 2. Repatch faces
// ~~~~~~~~~~~~~~~~
polyTopoChange meshMod(mesh);
forAll(patchSources, addedI)
{
const dictionary& dict = patchSources[addedI];
const word patchName(dict.lookup("name"));
label destPatchi = patches.findIndex(patchName);
if (destPatchi == -1)
{
FatalErrorInFunction
<< "patch " << patchName << " not added. Problem."
<< abort(FatalError);
}
const word sourceType(dict.lookup("constructFrom"));
if (sourceType == "patches")
{
labelHashSet patchSources
(
patches.patchSet
(
wordReList(dict.lookup("patches"))
)
);
// Repatch faces of the patches.
forAllConstIter(labelHashSet, patchSources, iter)
{
const polyPatch& pp = patches[iter.key()];
Info<< "Moving faces from patch " << pp.name()
<< " to patch " << destPatchi << endl;
forAll(pp, i)
{
changePatchID
(
mesh,
pp.start() + i,
destPatchi,
meshMod
);
}
}
}
else if (sourceType == "set")
{
const word setName(dict.lookup("set"));
faceSet faces(mesh, setName);
Info<< "Read " << returnReduce(faces.size(), sumOp<label>())
<< " faces from faceSet " << faces.name() << endl;
// Sort (since faceSet contains faces in arbitrary order)
labelList faceLabels(faces.toc());
SortableList<label> patchFaces(faceLabels);
forAll(patchFaces, i)
{
label facei = patchFaces[i];
if (mesh.isInternalFace(facei))
{
FatalErrorInFunction
<< "Face " << facei << " specified in set "
<< faces.name()
<< " is not an external face of the mesh." << endl
<< "This application can only repatch existing boundary"
<< " faces." << exit(FatalError);
}
changePatchID
(
mesh,
facei,
destPatchi,
meshMod
);
}
}
else
{
FatalErrorInFunction
<< "Invalid source type " << sourceType << endl
<< "Valid source types are 'patches' 'set'" << exit(FatalError);
}
}
Info<< endl;
// Change mesh, use motion to reforce calculation of transformation
// tensors.
Info<< "Doing topology modification to order faces." << nl << endl;
autoPtr<polyTopoChangeMap> map = meshMod.changeMesh(mesh);
// 3. Remove zeros-sized patches
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Info<< "Removing patches with no faces in them." << nl<< endl;
filterPatches(mesh, addedPatchNames);
if (writeCyclicMatch)
{
writeCyclicMatchObjs("final_", mesh);
}
// Set the precision of the points data to 10
IOstream::defaultPrecision(max(10u, IOstream::defaultPrecision()));
if (!overwrite)
{
runTime++;
}
else
{
mesh.setInstance(oldInstance);
}
// Write resulting mesh
Info<< "Writing repatched mesh to " << runTime.name() << nl << endl;
mesh.write();
Info<< "End\n" << endl;
return 0;
}
// ************************************************************************* //