GCOMModelDRBFitting.hpp
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/***************************************************************************
* GCOMModelDRBFitting.hpp - COMPTEL DRB model fitting class *
* ----------------------------------------------------------------------- *
* copyright (C) 2012-2013 by Juergen Knoedlseder *
* ----------------------------------------------------------------------- *
* *
* 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 3 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, see <http://www.gnu.org/licenses/>. *
* *
***************************************************************************/
/**
* @file GCOMModelDRBFitting.hpp
* @brief COMPTEL DRB model fitting class interface definition
* @author Juergen Knoedlseder
*/
#ifndef GCOMMODELDRBFITTING_HPP
#define GCOMMODELDRBFITTING_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GModelData.hpp"
#include "GModelPar.hpp"
#include "GEvent.hpp"
#include "GObservation.hpp"
#include "GNodeArray.hpp"
#include "GXmlElement.hpp"
#include "GCOMEventCube.hpp"
/***********************************************************************//**
* @class GCOMModelDRBFitting
*
* @brief COMPTEL DRB model fitting class
*
* This class implements a COMPTEL background model that is based on fitting
* of a DRB model. The model parameters are a set of normalization parameters
* defined for a given Phibar value, and linear interpolations are performed
* between these values.
***************************************************************************/
class GCOMModelDRBFitting : public GModelData {
public:
// Constructors and destructors
GCOMModelDRBFitting(void);
explicit GCOMModelDRBFitting(const GXmlElement& xml);
GCOMModelDRBFitting(const GCOMModelDRBFitting& model);
virtual ~GCOMModelDRBFitting(void);
// Operators
virtual GCOMModelDRBFitting& operator=(const GCOMModelDRBFitting& model);
// Implemented pure virtual methods
virtual void clear(void);
virtual GCOMModelDRBFitting* clone(void) const;
virtual std::string type(void) const;
virtual bool is_constant(void) const;
virtual double eval(const GEvent& event,
const GObservation& obs) const;
virtual double eval_gradients(const GEvent& event,
const GObservation& obs) const;
virtual double npred(const GEnergy& obsEng, const GTime& obsTime,
const GObservation& obs) const;
virtual GCOMEventCube* mc(const GObservation& obs, GRan& ran) const;
virtual void read(const GXmlElement& xml);
virtual void write(GXmlElement& xml) const;
virtual std::string print(const GChatter& chatter = NORMAL) const;
protected:
// Protected methods
void init_members(void);
void copy_members(const GCOMModelDRBFitting& model);
void free_members(void);
void set_pointers(void);
void set_cache(void) const;
void update_cache(void) const;
// Proteced data members
std::vector<GModelPar> m_phibars; //!< Node Phibar values
std::vector<GModelPar> m_values; //!< Node values
// Evaluation cache
mutable bool m_scale; //!< Model is a scale factor
mutable bool m_fixed; //!< All Phibar values are fixed
mutable std::vector<double> m_old_phibars; //!< Old Phibar values
mutable GNodeArray m_nodes; //!< Phibar node values
};
/***********************************************************************//**
* @brief Return model type
*
* @return Model type.
*
* Returns the type of the model. The type for a DRB fitting model is
* "DRBFitting".
***************************************************************************/
inline
std::string GCOMModelDRBFitting::type(void) const
{
return ("DRBFitting");
}
/***********************************************************************//**
* @brief Signals if model is temporally constant
*
* @return True if model is temporally constant, false otherwise.
*
* Signals if the model is temporally constant. By definition, a DRB fitting
* model is always temporally constant.
***************************************************************************/
inline
bool GCOMModelDRBFitting::is_constant(void) const
{
return (true);
}
#endif /* GCOMMODELDRBFITTING_HPP */