faceToCell.C

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    Copyright (C) 2011-2017 OpenFOAM Foundation
    Copyright (C) 2018-2024 OpenCFD Ltd.
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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.
 
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    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
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#include "faceToCell.H"
#include "polyMesh.H"
#include "faceSet.H"
#include "addToRunTimeSelectionTable.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    defineTypeNameAndDebug(faceToCell, 0);
    addToRunTimeSelectionTable(topoSetSource, faceToCell, word);
    addToRunTimeSelectionTable(topoSetSource, faceToCell, istream);
    addToRunTimeSelectionTable(topoSetCellSource, faceToCell, word);
    addToRunTimeSelectionTable(topoSetCellSource, faceToCell, istream);
}
 
 
Foam::topoSetSource::addToUsageTable Foam::faceToCell::usage_
(
    faceToCell::typeName,
    "\n    Usage: faceToCell <faceSet> neighbour|owner|any|all\n\n"
    "    Select cells that are the owner|neighbour|any"
    " of the faces in the faceSet or where all faces are in the faceSet\n\n"
);
 
const Foam::Enum
<
    Foam::faceToCell::faceAction
>
Foam::faceToCell::faceActionNames_
({
    { faceAction::ANY, "any" },
    { faceAction::ALL, "all" },
    { faceAction::OWNER, "owner" },
    { faceAction::NEIGHBOUR, "neighbour" },
});
 
 
// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //
 
template<class Selector>
void Foam::faceToCell::combineImpl
(
    topoSet& set,
    const bool add,
    const Selector& faceLabels
) const
{
    // Handle owner/neighbour/any selection
    for (const label facei : faceLabels)
    {
        if ((option_ == OWNER) || (option_ == ANY))
        {
            const label celli = mesh_.faceOwner()[facei];
 
            addOrDelete(set, celli, add);
        }
 
        if (mesh_.isInternalFace(facei))
        {
            if ((option_ == NEIGHBOUR) || (option_ == ANY))
            {
                const label celli = mesh_.faceNeighbour()[facei];
 
                addOrDelete(set, celli, add);
            }
        }
    }
 
    // Handle all selection.
    if (option_ == ALL)
    {
        // Count number of selected faces per cell.
 
        Map<label> facesPerCell(faceLabels.size());
 
        for (const label facei : faceLabels)
        {
            // Count faces on owner
            ++(facesPerCell(mesh_.faceOwner()[facei], 0));
 
            if (mesh_.isInternalFace(facei))
            {
                // Count faces on neighbour
                ++(facesPerCell(mesh_.faceNeighbour()[facei], 0));
            }
        }
 
        // Include cells that are referenced as many times as they have faces
        // -> all faces in set.
        forAllConstIters(facesPerCell, iter)
        {
            const label celli = iter.key();
            const label count = iter.val();
 
            if (count == mesh_.cells()[celli].size())
            {
                addOrDelete(set, celli, add);
            }
        }
    }
}
 
 
void Foam::faceToCell::combine
(
    topoSet& set,
    const bool add,
    const word& setName
) const
{
    if (isZone_)
    {
        const labelList& faceLabels = mesh_.faceZones()[setName];
 
        combineImpl(set, add, faceLabels);
    }
    else
    {
        // Load the set
        faceSet loadedSet(mesh_, setName, IOobject::NO_REGISTER);
        const labelHashSet& faceLabels = loadedSet;
 
        combineImpl(set, add, faceLabels);
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::faceToCell::faceToCell
(
    const polyMesh& mesh,
    const word& setName,
    const faceAction option
)
:
    topoSetCellSource(mesh),
    names_(Foam::one{}, setName),
    isZone_(false),
    option_(option)
{}
 
 
Foam::faceToCell::faceToCell
(
    const polyMesh& mesh,
    const dictionary& dict
)
:
    topoSetCellSource(mesh, dict),
    names_(),
    isZone_(topoSetSource::readNames(dict, names_)),
    option_(faceActionNames_.get("option", dict))
{}
 
 
Foam::faceToCell::faceToCell
(
    const polyMesh& mesh,
    Istream& is
)
:
    topoSetCellSource(mesh),
    names_(Foam::one{}, word(checkIs(is))),
    isZone_(false),
    option_(faceActionNames_.read(checkIs(is)))
{}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::faceToCell::applyToSet
(
    const topoSetSource::setAction action,
    topoSet& set
) const
{
    if (action == topoSetSource::ADD || action == topoSetSource::NEW)
    {
        if (verbose_)
        {
            Info<< "    Adding cells according to face "
                << (isZone_ ? "zones: " : "sets: ")
                << flatOutput(names_) << nl;
        }
 
        for (const word& setName : names_)
        {
            combine(set, true, setName);
        }
    }
    else if (action == topoSetSource::SUBTRACT)
    {
        if (verbose_)
        {
            Info<< "    Removing cells according to face "
                << (isZone_ ? "zones: " : "sets: ")
                << flatOutput(names_) << nl;
        }
 
        for (const word& setName : names_)
        {
            combine(set, false, setName);
        }
    }
}
 
 
// ************************************************************************* //