/usr/include/openturns/FFTImplementation.hxx is in libopenturns-dev 1.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @file FFTImplementation.hxx
* @brief This class is enables to launch an FFT transform/inverse transform
*
* Copyright (C) 2005-2013 EDF-EADS-Phimeca
*
* This library 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.
*
* This library 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
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* @author schueller
* @date 2012-04-18 17:56:46 +0200 (Wed, 18 Apr 2012)
*/
#ifndef OPENTURNS_FFTIMPLEMENTATION_HXX
#define OPENTURNS_FFTIMPLEMENTATION_HXX
#include "PersistentObject.hxx"
#include "Collection.hxx"
BEGIN_NAMESPACE_OPENTURNS
/**
* @class FFTImplementation
*/
class FFTImplementation
: public PersistentObject
{
CLASSNAME;
public:
typedef Collection<NumericalScalar> NumericalScalarCollection;
typedef Collection<NumericalComplex> NumericalComplexCollection;
/** Default constructor without parameters */
FFTImplementation(const String & name = DefaultName);
/** Virtual copy constructor */
virtual FFTImplementation * clone() const;
/** FFT transformation on real */
virtual NumericalComplexCollection transform(const NumericalScalarCollection & collection) const;
/** FFT transformation on complex */
virtual NumericalComplexCollection transform(const NumericalComplexCollection & collection) const;
/** FFT transformation on complex - For some FFT implementation, the transformation is applied on a part of the collection */
virtual NumericalComplexCollection transform(const NumericalComplexCollection & collection,
const UnsignedLong first,
const UnsignedLong size) const;
/** FFT transformation on complex - For some FFT implementation, the need is to transform a regular sequence of the collection (between first and last, by step = step)*/
virtual NumericalComplexCollection transform(const NumericalComplexCollection & collection,
const UnsignedLong first,
const UnsignedLong step,
const UnsignedLong last) const;
/** FFT inverse transformation */
virtual NumericalComplexCollection inverseTransform(const NumericalComplexCollection & collection) const;
/** FFT inverse transformation - The transformation is applied on a part of the collection */
virtual NumericalComplexCollection inverseTransform(const NumericalComplexCollection & collection,
const UnsignedLong first,
const UnsignedLong size) const;
/** FFT transformation on a regular sequence of the collection (between first and last, spearated by step)*/
virtual NumericalComplexCollection inverseTransform(const NumericalComplexCollection & collection,
const UnsignedLong first,
const UnsignedLong step,
const UnsignedLong last) const;
/** String converter */
virtual String __repr__() const;
/** String converter */
virtual String __str__(const String & offset = "") const;
} ; /* class FFTImplementation */
END_NAMESPACE_OPENTURNS
#endif /* OPENTURNS_FFTIMPLEMENTATION_HXX */
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