sortLabelledTri.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
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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
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    (at your option) any later version.
 
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    You should have received a copy of the GNU General Public License
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Class
    Foam::sortLabelledTri
 
Description
    Helper class which when constructed with a triSurface
    sorts the faces according to region number (or rather constructs a
    mapping).
 
SourceFiles
    sortLabelledTri.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef sortLabelledTri_H
#define sortLabelledTri_H
 
#include "labelList.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
class sortLabelledTri;
class triSurface;
 
/*---------------------------------------------------------------------------*\
                         Class surfAndLabel Declaration
\*---------------------------------------------------------------------------*/
 
//- Hold surface and label
class surfAndLabel
{
    const triSurface* surfPtr_;
 
    label index_;
 
    // Private Classes
 
        //- Scalar comparison function used for sorting
        class less
        {
        public:
 
            inline bool operator()
            (
                const surfAndLabel& one,
                const surfAndLabel& two
            ) const;
        };
 
 
public:
 
    friend class sortLabelledTri;
 
    // Constructors
 
        //- Construct null
        surfAndLabel()
        :
            surfPtr_(NULL),
            index_(-1)
        {}
 
        //- Construct from surface and index
        surfAndLabel(const triSurface& surf, const label index)
        :
            surfPtr_(&surf),
            index_(index)
        {}
};
 
 
/*---------------------------------------------------------------------------*\
                           Class sortLabelledTri Declaration
\*---------------------------------------------------------------------------*/
 
class sortLabelledTri
:
    public List<surfAndLabel>
{
 
public:
 
    // Constructors
 
        //- Construct from surface, sorting the faces according to patch
        sortLabelledTri(const triSurface&);
 
 
    // Member Functions
 
        // Access
 
            //- Set the labelList to those of sorted point indices
            void indices(labelList&) const;
 
            //- Return the list of sorted point indices
            labelList indices() const;
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //