cellPointWeight.H

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/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
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    Copyright (C) 2011-2017 OpenFOAM Foundation
-------------------------------------------------------------------------------
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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    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::cellPointWeight
 
Description
    Foam::cellPointWeight
 
SourceFiles
    cellPointWeight.C
 
\*---------------------------------------------------------------------------*/
 
#ifndef Foam_cellPointWeight_H
#define Foam_cellPointWeight_H
 
#include "vector.H"
#include "barycentric.H"
#include "triFace.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
namespace Foam
{
 
// Forward Declarations
class polyMesh;
 
/*---------------------------------------------------------------------------*\
                           Class cellPointWeight Declaration
\*---------------------------------------------------------------------------*/
 
class cellPointWeight
{
protected:
 
    // Protected Data
 
       //- Cell index
       const label celli_;
 
       //- Weights applied to tet vertices.
       //  Equal to the barycentric coordinates of the interpolation position.
       barycentric weights_;
 
       //- Face vertex indices
       triFace faceVertices_;
 
 
    // Protected Member Functions
 
        void findTetrahedron
        (
            const polyMesh& mesh,
            const vector& position,
            const label celli
        );
 
        void findTriangle
        (
            const polyMesh& mesh,
            const vector& position,
            const label facei
        );
 
 
public:
 
    //- Debug switch
    static int debug;
 
    //- Tolerance used in calculating barycentric coordinates
    //  (applied to normalised values)
    static scalar tol;
 
 
    // Constructors
 
        //- Construct from components
        cellPointWeight
        (
            const polyMesh& mesh,
            const vector& position,
            const label celli,
            const label facei = -1
        );
 
 
    // Member Functions
 
        //- Cell index
        label cell() const noexcept
        {
            return celli_;
        }
 
        //- Interpolation weights
        const barycentric& weights() const noexcept
        {
            return weights_;
        }
 
        //- Interpolation addressing for points on face
        const triFace& faceVertices() const noexcept
        {
            return faceVertices_;
        }
};
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
} // End namespace Foam
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
#endif
 
// ************************************************************************* //