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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2026 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/>.
Description
A mesh which allows changes in the patch distribution of the
faces. The change in patching is set using changePatchID. For a
boundary face, a new patch ID is given. If the face is internal,
it will be added to the first patch and its opposite to the second
patch (take care with face orientation!).
\*---------------------------------------------------------------------------*/
#include "repatcher.H"
#include "polyTopoChange.H"
// * * * * * * * * * * * * * Private Member Functions * * * * * * * * * * * //
Foam::polyTopoChange& Foam::repatcher::meshMod()
{
if (meshModPtr_.empty())
{
meshModPtr_.reset(new polyTopoChange(mesh_));
}
return meshModPtr_();
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::repatcher::repatcher(polyMesh& mesh)
:
mesh_(mesh),
meshModPtr_(nullptr)
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::repatcher::~repatcher()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
void Foam::repatcher::changePatches
(
const List<polyPatch*>& patches
)
{
if (meshModPtr_.valid())
{
FatalErrorInFunction
<< "Cannot change patches after faces have changed"
<< exit(FatalError);
}
mesh_.removeBoundary();
mesh_.addPatches(patches);
}
void Foam::repatcher::changePatchID
(
const label faceID,
const label patchID
)
{
if (polyTopoChange::debug)
{
// Check that the request is possible
if
(
faceID >= mesh_.faces().size()
|| patchID >= mesh_.boundary().size()
|| mesh_.isInternalFace(faceID)
)
{
FatalErrorInFunction
<< " patchID: " << patchID << ". "
<< "Labels out of range or internal face."
<< abort(FatalError);
}
}
meshMod().modifyFace
(
mesh_.faces()[faceID], // face
faceID, // face ID
mesh_.faceOwner()[faceID], // owner
-1, // neighbour
false, // flip flux
patchID // patch ID
);
}
void Foam::repatcher::changeAnchorPoint
(
const label faceID,
const label fp
)
{
if (polyTopoChange::debug)
{
// Check that the request is possible
if (faceID > mesh_.faces().size())
{
FatalErrorInFunction
<< "out of range."
<< abort(FatalError);
}
}
const face& f = mesh_.faces()[faceID];
if ((fp < 0) || (fp >= f.size()))
{
FatalErrorInFunction
<< "Error in definition. Face point: " << fp
<< "indexes out of face " << f
<< abort(FatalError);
}
label patchID = mesh_.boundary().whichPatch(faceID);
if (fp == 0)
{
// Do dummy modify to keep patch ordering.
meshMod().modifyFace
(
f, // face
faceID, // face ID
mesh_.faceOwner()[faceID], // owner
-1, // neighbour
false, // flip flux
patchID // patch ID
);
}
else
{
// Construct new face with fp as first point.
face newFace(f.size());
label fVert = fp;
forAll(f, i)
{
newFace[i] = f[fVert++];
if (fVert == f.size())
{
fVert = 0;
}
}
meshMod().modifyFace
(
newFace, // face
faceID, // face ID
mesh_.faceOwner()[faceID], // owner
-1, // neighbour
false, // flip flux
patchID // patch ID
);
}
}
void Foam::repatcher::repatch()
{
// Apply patch changes to mesh
meshMod().changeMesh(mesh_);
// Clear topo change for the next operation
meshModPtr_.clear();
}
// ************************************************************************* //
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