/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    \\  /    A nd           | Copyright (C) 2025-2026 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
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 "hemisphere.H"
#include "addToRunTimeSelectionTable.H"

// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //

namespace Foam
{
    namespace zoneGenerators
    {
        defineTypeNameAndDebug(hemisphere, 0);
        addToRunTimeSelectionTable(zoneGenerator, hemisphere, dictionary);
    }
}


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

inline bool Foam::zoneGenerators::hemisphere::contains(const point& p) const
{
    const vector r = p - centre_;
    return magSqr(r) <= radiusSqr_ && (r & (axis_ - centre_)) >= 0;
}


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

Foam::zoneGenerators::hemisphere::hemisphere
(
    const word& name,
    const polyMesh& mesh,
    const dictionary& dict
)
:
    volume(name, mesh, dict),
    centre_(dict.lookup<point>("centre", dimensions::length)),
    radius_(dict.lookup<scalar>("radius", dimensions::length)),
    axis_(dict.lookup<point>("axis")),
    radiusSqr_(sqr(radius_))
{}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::zoneGenerators::hemisphere::~hemisphere()
{}


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

Foam::zoneSet Foam::zoneGenerators::hemisphere::generate() const
{
    return volume::generate(*this);
}


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