/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | www.openfoam.com
     \\/     M anipulation  |
-------------------------------------------------------------------------------
    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
    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/>.

\*---------------------------------------------------------------------------*/

#include "faceCoupleInfo.H"

// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //

// Add a T entry
template<template<class> class FaceList>
Foam::pointField Foam::faceCoupleInfo::calcFaceCentres
(
    const FaceList<face>& faces,
    const pointField& points,
    const label start,
    const label size
)
{
    pointField fc(size);

    label facei = start;

    forAll(fc, i)
    {
        fc[i] = faces[facei++].centre(points);
    }
    return fc;
}


template<template<class> class FaceList>
Foam::pointField Foam::faceCoupleInfo::calcFacePointAverages
(
    const FaceList<face>& faces,
    const pointField& points,
    const label start,
    const label size
)
{
    pointField fpa(size, Zero);

    label facei = start;

    forAll(fpa, i)
    {
        forAll(faces[facei], j)
        {
            fpa[i] += points[faces[facei][j]];
        }
        fpa[i] /= faces[facei++].size();
    }
    return fpa;
}


// ************************************************************************* //
