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fftransform.hh
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Wed, Aug 14, 18:24
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rTAMAAS tamaas
fftransform.hh
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/**
*
* @author Lucas Frérot <lucas.frerot@epfl.ch>
*
* @section LICENSE
*
* Copyright (©) 2016 EPFL (Ecole Polytechnique Fédérale de
* Lausanne) Laboratory (LSMS - Laboratoire de Simulation en Mécanique des
* Solides)
*
* Tamaas is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Tamaas 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Tamaas. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef FFTRANSFORM_HH
#define FFTRANSFORM_HH
/* -------------------------------------------------------------------------- */
#include "tamaas.hh"
#include "grid.hh"
#include "grid_hermitian.hh"
/* -------------------------------------------------------------------------- */
__BEGIN_TAMAAS__
/* -------------------------------------------------------------------------- */
template <typename T, UInt dim>
class FFTransform {
public:
/// Constructor
FFTransform(Grid<T, dim> & real,
GridHermitian<T, dim> & spectral);
/// Destructor
virtual ~FFTransform();
public:
/// Perform FFT
virtual void forwardTransform() = 0;
/// Perform IFFT
virtual void backwardTransform() = 0;
/// Normalize the real surface after backward transform
virtual void normalize();
protected:
Grid<T, dim> & real;
GridHermitian<T, dim> & spectral;
};
/* -------------------------------------------------------------------------- */
__END_TAMAAS__
/* -------------------------------------------------------------------------- */
#endif // FFTRANSFORM_HH
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