barycentric2D.C

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    Copyright (C) 2017 OpenFOAM Foundation
    Copyright (C) 2020 OpenCFD Ltd.
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License
    This file is part of OpenFOAM.
 
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#include "barycentric2D.H"
#include "Random.H"
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
static inline Foam::barycentric2D barycentric2D01Impl
(
    Foam::scalar s,
    Foam::scalar t
)
{
    // Transform the random point in the unit square to a random point in the
    // unit tri by reflecting across the diagonal
 
    if (s + t > 1)
    {
        s = 1 - s;
        t = 1 - t;
    }
 
    return Foam::barycentric2D(1 - s - t, s, t);
}
 
 
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
Foam::barycentric2D Foam::barycentric2D01(Random& rndGen)
{
    const scalar s(rndGen.sample01<scalar>());
    const scalar t(rndGen.sample01<scalar>());
 
    return barycentric2D01Impl(s, t);
}
 
 
// ************************************************************************* //