labelledTri.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    Copyright (C) 2011-2016 OpenFOAM Foundation
    Copyright (C) 2016-2021 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
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
Class
    Foam::labelledTri
 
Description
    A triFace with additional (region) index.
 
SourceFiles
    labelledTriI.H
 
\*---------------------------------------------------------------------------*/
 
#ifndef labelledTri_H
#define labelledTri_H
 
#include "triFace.H"
#include "ListListOps.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class labelledTri;
inline Istream& operator>>(Istream&, labelledTri&);
inline Ostream& operator<<(Ostream&, const labelledTri&);
 
/*---------------------------------------------------------------------------*\
                         Class labelledTri Declaration
\*---------------------------------------------------------------------------*/
 
class labelledTri
:
    public triFace
{
    // Private Data
 
        //- The object index (region)
        label index_;
 
 
    // Private Member Functions
 
        //- Assign from 3 or 4 labels, default region is 0.
        template<class ListType>
        inline void assignList(const ListType& list);
 
 
public:
 
    // Constructors
 
        //- Default construct, with invalid point labels and region (-1).
        inline labelledTri();
 
        //- Construct from triFace
        //- and optional region index (0 if unspecified)
        inline labelledTri
        (
            const triFace& tri,
            const label region = 0
        );
 
        //- Construct from three point labels
        //- and optional region index (0 if unspecified)
        inline labelledTri
        (
            const label a,
            const label b,
            const label c,
            const label region = 0
        );
 
        //- Construct from a list of 3 or 4 labels. Default region is 0.
        inline explicit labelledTri(const labelUList& list);
 
        //- Construct from a list of 3 or 4 labels. Default region is 0.
        inline explicit labelledTri(std::initializer_list<label>);
 
        //- Copy construct from a subset of point labels
        //- and optional region index (0 if unspecified)
        inline labelledTri
        (
            const labelUList& list,
            const FixedList<label, 3>& triIndices,
            const label region = 0
        );
 
        //- Copy construct from a subset of point labels
        //- with region index from input labelledTri
        inline labelledTri
        (
            const labelUList& list,
            const labelledTri& triIndices
        );
 
        //- Construct from Istream
        inline labelledTri(Istream& is);
 
 
    // Member Functions
 
        //- Return the index (eg, the region)
        label index() const noexcept
        {
            return index_;
        }
 
        //- Non-const access to the index (eg, the region)
        label& index() noexcept
        {
            return index_;
        }
 
        //- Set the index (eg, the region)
        void setIndex(const label idx) noexcept
        {
            index_ = idx;
        }
 
        //- Return the region index
        label region() const noexcept
        {
            return index_;
        }
 
        //- Non-const access to the region index
        label& region() noexcept
        {
            return index_;
        }
 
 
    // IOstream Operators
 
        friend Istream& operator>>(Istream&, labelledTri&);
        friend Ostream& operator<<(Ostream&, const labelledTri&);
};
 
 
// * * * * * * * * * * * * * * * * * Traits  * * * * * * * * * * * * * * * * //
 
//- Contiguous data for labelledTri
template<> struct is_contiguous<labelledTri> : std::true_type {};
 
//- Contiguous label data for labelledTri
template<> struct is_contiguous_label<labelledTri> : std::true_type {};
 
 
//- Specialization to offset faces, used in ListListOps::combineOffset
template<>
struct offsetOp<labelledTri>
{
    labelledTri operator()(const labelledTri& x, const label offset) const
    {
        labelledTri result(x);
 
        forAll(x, xi)
        {
            result[xi] = x[xi] + offset;
        }
        return result;
    }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#include "labelledTriI.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //