//                                               -*- C++ -*-
/**
 *  @file  NatafIndependentCopulaGradient.hxx
 *  @brief Class for the Nataf transformation evaluation for independent
 *
 *  (C) Copyright 2005-2012 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 2.1 of the License.
 *
 *  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
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 *
 *  @author schueller
 *  @date   2012-02-17 19:35:43 +0100 (Fri, 17 Feb 2012)
 *  Id      NatafIndependentCopulaGradient.hxx 2392 2012-02-17 18:35:43Z schueller
 */
#ifndef OPENTURNS_NATAFINDEPENDENTCOPULAGRADIENT_HXX
#define OPENTURNS_NATAFINDEPENDENTCOPULAGRADIENT_HXX

#include "NumericalMathGradientImplementation.hxx"
#include "Matrix.hxx"
#include "NumericalPoint.hxx"
#include "StorageManager.hxx"

BEGIN_NAMESPACE_OPENTURNS

/**
 * @class NatafIndependentCopulaGradient
 *
 * This class offers an interface for the Nataf function for independent distributions
 */
class NatafIndependentCopulaGradient
  : public NumericalMathGradientImplementation
{
  CLASSNAME;
public:


  /** Default constructor */
  NatafIndependentCopulaGradient();

  /** Parameter constructor */
  NatafIndependentCopulaGradient(const UnsignedLong dimension);


  /** Virtual constructor */
  virtual NatafIndependentCopulaGradient * clone() const;

  /** Gradient */
  Matrix gradient(const NumericalPoint & inP) const;

  /** Accessor for input point dimension */
  virtual UnsignedLong getInputDimension() const;

  /** Accessor for output point dimension */
  virtual UnsignedLong getOutputDimension() const;

  /** String converter */
  virtual String __repr__() const;

  /** Method save() stores the object through the StorageManager */
  void save(Advocate & adv) const;

  /** Method load() reloads the object from the StorageManager */
  void load(Advocate & adv);

protected:


private:
  UnsignedLong dimension_;

}; /* NatafIndependentCopulaGradient */


END_NAMESPACE_OPENTURNS

#endif /* OPENTURNS_NATAFINDEPENDENTCOPULAGRADIENT_HXX */
