//                                               -*- C++ -*-
/**
 *  @file  InverseRosenblattEvaluation.hxx
 *  @brief Class for the Nataf transformationEvaluation evaluation for elliptical
 *
 *  (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 lebrun
 *  @date   2008-07-03 08:31:34 +0200 (jeu, 03 jui 2008)
 *  Id      InverseRosenblattEvaluation.hxx 867 2008-07-03 06:31:34Z lebrun
 */
#ifndef OPENTURNS_INVERSEROSENBLATTEVALUATION_HXX
#define OPENTURNS_INVERSEROSENBLATTEVALUATION_HXX

#include "OTprivate.hxx"
#include "NumericalMathEvaluationImplementation.hxx"
#include "Matrix.hxx"
#include "NumericalPoint.hxx"
#include "Distribution.hxx"
#include "StorageManager.hxx"

BEGIN_NAMESPACE_OPENTURNS

/**
 * @class InverseRosenblattEvaluation
 *
 * This class offers an interface for the Nataf function for elliptical distributions
 */
class InverseRosenblattEvaluation
  : public NumericalMathEvaluationImplementation
{
  CLASSNAME;
public:


  /** Default constructor */
  InverseRosenblattEvaluation();

  /** Parameter constructor */
  InverseRosenblattEvaluation(const Distribution & distribution);


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

  /** Evaluation */
  NumericalPoint operator () (const NumericalPoint & inP) const;

  /** Gradient according to the marginal parameters */
  virtual Matrix parametersGradient(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:
  Distribution distribution_;

}; /* InverseRosenblattEvaluation */


END_NAMESPACE_OPENTURNS

#endif /* OPENTURNS_INVERSEROSENBLATTEVALUATION_HXX */
