cellSetOption.C

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    Copyright (C) 2017-2022 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
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#include "cellSetOption.H"
#include "cellSet.H"
#include "cellBitSet.H"
#include "volFields.H"
 
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
namespace Foam
{
    namespace fv
    {
        defineTypeNameAndDebug(cellSetOption, 0);
    }
}
 
 
const Foam::Enum
<
    Foam::fv::cellSetOption::selectionModeType
>
Foam::fv::cellSetOption::selectionModeTypeNames_
({
    { selectionModeType::smGeometric, "geometric" },
    { selectionModeType::smPoints, "points" },
    { selectionModeType::smCellSet, "cellSet" },
    { selectionModeType::smCellZone, "cellZone" },
    { selectionModeType::smAll, "all" },
});
 
 
// * * * * * * * * * * * * Protected Member Functions  * * * * * * * * * * * //
 
void Foam::fv::cellSetOption::setSelection(const dictionary& dict)
{
    switch (selectionMode_)
    {
        case smGeometric:
        {
            geometricSelection_ = dict.subDict("selection");
            break;
        }
        case smPoints:
        {
            dict.readEntry("points", points_);
            break;
        }
        case smCellSet:
        {
            dict.readEntry("cellSet", zoneName_);
            break;
        }
        case smCellZone:
        {
            dict.readEntry("cellZone", zoneName_);
            break;
        }
        case smAll:
        {
            break;
        }
        default:
        {
            FatalErrorInFunction
                << "Unknown selectionMode "
                << selectionModeTypeNames_[selectionMode_]
                << ". Valid selectionMode types : "
                << selectionModeTypeNames_
                << exit(FatalError);
        }
    }
}
 
 
void Foam::fv::cellSetOption::setVol()
{
    // Set volume information
 
    scalar sumVol = 0;
    for (const label celli : cells_)
    {
        sumVol += mesh_.V()[celli];
    }
    reduce(sumVol, sumOp<scalar>());
 
    const scalar VOld = V_;
    V_ = sumVol;
 
    // Convert both volumes to representation using current writeprecision
    word VOldName(Time::timeName(VOld, IOstream::defaultPrecision()));
    word VName(Time::timeName(V_, IOstream::defaultPrecision()));
 
    if (VName != VOldName)
    {
        Info<< indent
            << "- selected " << returnReduce(cells_.size(), sumOp<label>())
            << " cell(s) with volume " << V_ << endl;
    }
}
 
 
void Foam::fv::cellSetOption::setCellSelection()
{
    switch (selectionMode_)
    {
        case smGeometric:
        {
            Info<< indent << "- selecting cells geometrically" << endl;
 
            bitSet selectedCells
            (
                // verbosity = true
                cellBitSet::select(mesh_, geometricSelection_, true)
            );
 
            // From bitSet -> labels
            cells_ = selectedCells.sortedToc();
            break;
        }
        case smPoints:
        {
            Info<< indent << "- selecting cells using points" << endl;
 
            labelHashSet selectedCells;
 
            for (const point& p : points_)
            {
                const label celli = mesh_.findCell(p);
 
                const bool found = (celli >= 0);
 
                if (found)
                {
                    selectedCells.insert(celli);
                }
 
                if (!returnReduce(found, orOp<bool>()))
                {
                    WarningInFunction
                        << "No owner cell found for point " << p << endl;
                }
            }
 
            cells_ = selectedCells.sortedToc();
            break;
        }
        case smCellSet:
        {
            Info<< indent
                << "- selecting cells using cellSet " << zoneName_ << endl;
 
            cells_ = cellSet(mesh_, zoneName_).sortedToc();
            break;
        }
        case smCellZone:
        {
            Info<< indent
                << "- selecting cells using cellZone " << zoneName_ << endl;
 
            // Also handles groups, multiple zones (as wordRe match) ...
            labelList zoneIDs = mesh_.cellZones().indices(zoneName_);
 
            if (zoneIDs.empty())
            {
                FatalErrorInFunction
                    << "No matching cellZones: " << zoneName_ << nl
                    << "Valid zones : "
                    << flatOutput(mesh_.cellZones().names()) << nl
                    << "Valid groups: "
                    << flatOutput(mesh_.cellZones().groupNames())
                    << nl
                    << exit(FatalError);
            }
 
            if (zoneIDs.size() == 1)
            {
                cells_ = mesh_.cellZones()[zoneIDs.first()];
            }
            else
            {
                cells_ = mesh_.cellZones().selection(zoneIDs).sortedToc();
            }
            break;
        }
        case smAll:
        {
            Info<< indent << "- selecting all cells" << endl;
 
            cells_ = identity(mesh_.nCells());
            break;
        }
        default:
        {
            FatalErrorInFunction
                << "Unknown selectionMode "
                << selectionModeTypeNames_[selectionMode_]
                << ". Valid selectionMode types are "
                << selectionModeTypeNames_
                << exit(FatalError);
        }
    }
 
    if
    (
        smAll != selectionMode_
     && returnReduce(cells_.empty(), andOp<bool>())
    )
    {
        WarningInFunction
            << "No cells selected!" << endl;
    }
}
 
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::fv::cellSetOption::cellSetOption
(
    const word& name,
    const word& modelType,
    const dictionary& dict,
    const fvMesh& mesh
)
:
    fv::option(name, modelType, dict, mesh),
    timeStart_(-1),
    duration_(0),
    selectionMode_(selectionModeTypeNames_.get("selectionMode", coeffs_)),
    zoneName_(),
    points_(),
    geometricSelection_(),
    V_(0)
{
    Info<< incrIndent;
    read(dict);
    setSelection(coeffs_);
    setCellSelection();
    setVol();
    Info<< decrIndent;
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
bool Foam::fv::cellSetOption::isActive()
{
    if (fv::option::isActive() && inTimeLimits(mesh_.time().value()))
    {
        // Update the cell set if the mesh is changing
        if (mesh_.changing())
        {
            if (mesh_.topoChanging())
            {
                setCellSelection();
                // Force printing of new set volume
                V_ = -GREAT;
            }
            else if
            (
                selectionMode_ == smGeometric
             || selectionMode_ == smPoints
            )
            {
                // Geometric selection mode(s)
                setCellSelection();
            }
 
            // Report new volume (if changed)
            setVol();
        }
 
        return true;
    }
 
    return false;
}
 
 
bool Foam::fv::cellSetOption::read(const dictionary& dict)
{
    if (fv::option::read(dict))
    {
        if (coeffs_.readIfPresent("timeStart", timeStart_))
        {
            coeffs_.readEntry("duration", duration_);
        }
 
        return true;
    }
 
    return false;
}
 
 
// ************************************************************************* //