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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2012-2026 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "meshToMesh.H"
#include "PatchTools.H"
#include "emptyPolyPatch.H"
#include "wedgePolyPatch.H"
#include "processorPolyPatch.H"
#include "nearestCellsToCellsExtrapolation.H"
#include "nearestPatchToPatchExtrapolation.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
defineTypeNameAndDebug(meshToMesh, 0);
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::meshToMesh::meshToMesh
(
const polyMesh& srcMesh,
const polyMesh& tgtMesh,
const word& cellsInterpolationType,
const word& cellsExtrapolationType,
const word& patchInterpolationType,
const word& patchExtrapolationType,
const HashTable<word>& patchMap
)
:
srcMesh_(srcMesh),
tgtMesh_(tgtMesh),
cellsInterpolation_(),
cellsExtrapolationType_(cellsExtrapolationType),
srcCellsExtrapolation_(),
tgtCellsExtrapolation_(),
patchIndices_(),
patchInterpolations_(),
patchExtrapolationType_(patchExtrapolationType),
srcPatchExtrapolations_(),
tgtPatchExtrapolations_()
{
// If no patch map was supplied, then assume a consistent pair of meshes in
// which corresponding patches have the same name
if (isNull(patchMap))
{
DynamicList<labelPair> patchIDs;
forAll(srcMesh_.boundary(), srcPatchi)
{
const polyPatch& srcPp = srcMesh_.boundary()[srcPatchi];
// We don't want to map empty or wedge patches, as by definition
// these do not hold relevant values. We also don't want to map
// processor patches as these are likely to differ between cases.
// In general, though, we do want to map constraint patches as they
// might have additional mappable properties; e.g., the jump field
// of a jump cyclic.
if
(
!isA<emptyPolyPatch>(srcPp)
&& !isA<wedgePolyPatch>(srcPp)
&& !isA<processorPolyPatch>(srcPp)
)
{
const label tgtPatchi =
tgtMesh_.boundary().findIndex(srcPp.name());
if (tgtPatchi == -1)
{
FatalErrorInFunction
<< "Source patch " << srcPp.name()
<< " not found in target mesh. "
<< "Available target patches are "
<< tgtMesh_.boundary().names()
<< exit(FatalError);
}
patchIDs.append(labelPair(srcPatchi, tgtPatchi));
}
}
patchIndices_.transfer(patchIDs);
}
// If a patch mas was supplied then convert it to pairs of patch indices
else
{
patchIndices_.setSize(patchMap.size());
label i = 0;
forAllConstIter(HashTable<word>, patchMap, iter)
{
const word& tgtPatchName = iter.key();
const word& srcPatchName = iter();
const label srcPatchi =
srcMesh_.boundary().findIndex(srcPatchName);
const label tgtPatchi =
tgtMesh_.boundary().findIndex(tgtPatchName);
if (srcPatchi == -1)
{
FatalErrorInFunction
<< "Patch " << srcPatchName
<< " not found in source mesh. "
<< "Available source patches are "
<< srcMesh_.boundary().names()
<< exit(FatalError);
}
if (tgtPatchi == -1)
{
FatalErrorInFunction
<< "Patch " << tgtPatchName
<< " not found in target mesh. "
<< "Available target patches are "
<< tgtMesh_.boundary().names()
<< exit(FatalError);
}
patchIndices_[i ++] = labelPair(srcPatchi, tgtPatchi);
}
}
// Calculate cell addressing and weights
Info<< "Creating cellsToCells between source mesh "
<< srcMesh_.name() << " and target mesh " << tgtMesh_.name()
<< " using " << cellsInterpolationType << endl << incrIndent;
cellsInterpolation_ = cellsToCells::New(cellsInterpolationType);
cellsInterpolation_->update(srcMesh_, tgtMesh_);
srcCellsExtrapolation_.clear();
tgtCellsExtrapolation_.clear();
Info<< decrIndent;
// Calculate patch addressing and weights
patchInterpolations_.setSize(patchIndices_.size());
srcPatchExtrapolations_.setSize(patchIndices_.size());
tgtPatchExtrapolations_.setSize(patchIndices_.size());
forAll(patchIndices_, i)
{
const label srcPatchi = patchIndices_[i].first();
const label tgtPatchi = patchIndices_[i].second();
const polyPatch& srcPp = srcMesh_.boundary()[srcPatchi];
const polyPatch& tgtPp = tgtMesh_.boundary()[tgtPatchi];
Info<< "Creating patchToPatch between source patch "
<< srcPp.name() << " and target patch " << tgtPp.name()
<< " using " << patchInterpolationType << endl << incrIndent;
patchInterpolations_.set
(
i,
patchToPatch::New(patchInterpolationType, true)
);
patchInterpolations_[i].update
(
srcPp,
PatchTools::pointNormals(srcMesh_, srcPp),
tgtPp
);
Info<< decrIndent;
}
}
Foam::meshToMesh::meshToMesh
(
const polyMesh& srcMesh,
const polyMesh& tgtMesh,
const word& cellsInterpolationType,
const word& patchInterpolationType,
const HashTable<word>& patchMap
)
:
meshToMesh
(
srcMesh,
tgtMesh,
cellsInterpolationType,
cellsToCellsExtrapolations::nearest::typeName,
patchInterpolationType,
patchToPatchExtrapolations::nearest::typeName,
patchMap
)
{}
Foam::meshToMesh::meshToMesh
(
const polyMesh& srcMesh,
const polyMesh& tgtMesh,
const word& interpolationType,
const HashTable<word>& patchMap
)
:
meshToMesh
(
srcMesh,
tgtMesh,
interpolationType,
cellsToCellsExtrapolations::nearest::typeName,
interpolationType,
patchToPatchExtrapolations::nearest::typeName,
patchMap
)
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::meshToMesh::~meshToMesh()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::meshToMesh::consistent() const
{
boolList srcPatchIsMapped(srcMesh_.boundary().size(), false);
boolList tgtPatchIsMapped(tgtMesh_.boundary().size(), false);
// Mark anything paired as mapped
forAll(patchIndices_, i)
{
const label srcPatchi = patchIndices_[i].first();
const label tgtPatchi = patchIndices_[i].second();
srcPatchIsMapped[srcPatchi] = true;
tgtPatchIsMapped[tgtPatchi] = true;
}
// Filter out un-mappable patches
forAll(srcMesh_.boundary(), srcPatchi)
{
const polyPatch& srcPp = srcMesh_.boundary()[srcPatchi];
if
(
isA<emptyPolyPatch>(srcPp)
|| isA<wedgePolyPatch>(srcPp)
|| isA<processorPolyPatch>(srcPp)
)
{
srcPatchIsMapped[srcPp.index()] = true;
}
}
forAll(tgtMesh_.boundary(), tgtPatchi)
{
const polyPatch& tgtPp = tgtMesh_.boundary()[tgtPatchi];
if
(
isA<emptyPolyPatch>(tgtPp)
|| isA<wedgePolyPatch>(tgtPp)
|| isA<processorPolyPatch>(tgtPp)
)
{
tgtPatchIsMapped[tgtPp.index()] = true;
}
}
// Return whether or not everything is mapped
return
findIndex(srcPatchIsMapped, false) == -1
&& findIndex(tgtPatchIsMapped, false) == -1;
}
Foam::remote Foam::meshToMesh::srcToTgtPoint
(
const label srcCelli,
const point& p
) const
{
return cellsInterpolation_().srcToTgtPoint(tgtMesh_, srcCelli, p);
}
// ************************************************************************* //
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