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/* This file is part of the OpenLB library
*
* Copyright (C) 2018 Adrian Kummerlaender
* E-mail contact: info@openlb.net
* The most recent release of OpenLB can be downloaded at
* <http://www.openlb.net/>
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free
* Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef BLOCK_LOCAL_AVERAGE_3D_H
#define BLOCK_LOCAL_AVERAGE_3D_H
#include "blockBaseF3D.h"
#include "indicator/blockIndicatorBaseF3D.h"
namespace olb {
/// Averages given functor inside the local sphere
/**
* Note that the average is calculated over the intersection between local sphere
* and block cuboid. i.e. results will differ compared to SuperLocalAverage3D if
* the local sphere intersects the neighboring blocks.
**/
template <typename T, typename W = T>
class BlockLocalAverage3D final : public BlockF3D<W> {
private:
BlockF3D<W>& _f;
BlockIndicatorF3D<T>& _indicatorF;
const T _radius;
public:
/// Primary constructor
/**
* \param f Functor to be locally averaged
* \param indicatorF Indicator describing relevant cells
* \param radius Radius of the locality sphere
**/
BlockLocalAverage3D(BlockF3D<W>& f,
BlockIndicatorF3D<T>& indicatorF,
T radius);
/**
* Returns average of functor \e _f evaluated on all cells both inside a sphere
* of \e _radius around \e input and indicated by \e _indicatorF.
**/
bool operator() (W output[], const int input[]) override;
};
}
#endif
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