zone.H

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/*---------------------------------------------------------------------------*\
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2017-2025 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.
 
    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/>.
 
Class
    Foam::zone
 
Description
    Base class for mesh zones.
 
    A zone is a list of labels (eg, cells, faces, points) with
    a name and associated with an index within another list.
 
SourceFiles
    zone.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_zone_H
#define Foam_zone_H
 
#include "zoneIdentifier.H"
#include "labelList.H"
#include "typeInfo.H"
#include "Map.H"
#include "pointFieldFwd.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class zone;
class dictionary;
Ostream& operator<<(Ostream& os, const zone& zn);
 
/*---------------------------------------------------------------------------*\
                           Class zone Declaration
\*---------------------------------------------------------------------------*/
 
class zone
:
    public zoneIdentifier,
    public labelList
{
    // Private Data
 
        //- Demand-driven: map of labels in zone for fast location lookup
        mutable std::unique_ptr<Map<label>> lookupMapPtr_;
 
 
public:
 
    //- Runtime type information
    TypeNameNoDebug("zone");
 
 
    // Constructors
 
        //- Default construct: empty zone with name="", index=0
        zone();
 
        //- Construct an empty zone with specified name and index
        zone(const word& name, const label index);
 
        //- Copy construct from components
        zone
        (
            const word& name,
            const labelUList& addr,
            const label index
        );
 
        //- Move construct from components
        zone
        (
            const word& name,
            labelList&& addr,
            const label index
        );
 
        //- Construct from dictionary
        zone
        (
            const word& name,
            const dictionary& dict,
            const word& labelsName,
            const label index
        );
 
        //- Copy construct with new index
        zone
        (
            const zone& originalZone,
            const label index
        );
 
        //- Construct given the name of the original zone (name is used)
        //- with new addressing and index
        zone
        (
            const zone& originalZone,
            const labelUList& addr,
            const label index
        );
 
        //- Construct given the name of the original zone (name is used)
        //- and (move) resetting addressing and index
        zone
        (
            const zone& originalZone,
            labelList&& addr,
            const label index
        );
 
 
    //- Destructor
    virtual ~zone() = default;
 
 
    // Member Functions
 
        //- Demand-driven: the look-up map from global to local id
        const Map<label>& lookupMap() const;
 
        //- Lookup local address in zone for given global index.
        //  \return the local address, or -1 if the item is not in the zone
        label localID(const label globalID) const;
 
        //- The addressing used by the zone
        const labelList& addressing() const noexcept
        {
            return static_cast<const labelList&>(*this);
        }
 
        //- Clear addressing
        //- (remove lookup maps and other auxiliary information)
        virtual void clearAddressing();
 
        //- Clear primitive addressing
        virtual void clearPrimitives();
 
        //- Check zone definition. Return true if in error.
        virtual bool checkDefinition(const bool report = false) const = 0;
 
        //- Check zone definition with max size given. Return true if in error.
        virtual bool checkDefinition
        (
            const label maxSize,
            const bool report = false
        ) const;
 
 
    // Mesh Changes
 
        //- Corrections after moving points
        virtual void movePoints(const pointField&)
        {}
 
 
    // I-O
 
        //- Write (dictionary entries)
        virtual void write(Ostream& os) const;
 
        //- Ostream Operator
        friend Ostream& operator<<(Ostream& os, const zone& zn);
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //