GCTAAeffPerfTable.hpp
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/***************************************************************************
* GCTAAeffPerfTable.hpp - CTA performance table effective area class *
* ----------------------------------------------------------------------- *
* copyright (C) 2012-2014 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 GCTAAeffPerfTable.hpp
* @brief CTA performance table effective area class definition
* @author Juergen Knoedlseder
*/
#ifndef GCTAAEFFPERFTABLE_HPP
#define GCTAAEFFPERFTABLE_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GFits.hpp"
#include "GCTAAeff.hpp"
#include "GNodeArray.hpp"
/***********************************************************************//**
* @class GCTAAeffPerfTable
*
* @brief CTA performance table effective area class
*
* This class implements the CTA effective area response as function of
* energy as determined from a performance table. The performance table is
* an ASCII file that specifies the CTA performance parameters in a simple
* way.
***************************************************************************/
class GCTAAeffPerfTable : public GCTAAeff {
public:
// Constructors and destructors
GCTAAeffPerfTable(void);
explicit GCTAAeffPerfTable(const std::string& filename);
GCTAAeffPerfTable(const GCTAAeffPerfTable& cta);
virtual ~GCTAAeffPerfTable(void);
// Operators
GCTAAeffPerfTable& operator=(const GCTAAeffPerfTable& aeff);
double operator()(const double& logE,
const double& theta = 0.0,
const double& phi = 0.0,
const double& zenith = 0.0,
const double& azimuth = 0.0,
const bool& etrue = true) const;
// Implemented pure virtual methods
void clear(void);
GCTAAeffPerfTable* clone(void) const;
std::string classname(void) const;
void load(const std::string& filename);
std::string filename(void) const;
std::string print(const GChatter& chatter = NORMAL) const;
// Methods
int size(void) const;
void sigma(const double& sigma);
const double& sigma(void) const;
private:
// Methods
void init_members(void);
void copy_members(const GCTAAeffPerfTable& aeff);
void free_members(void);
// Members
std::string m_filename; //!< Name of Aeff response file
GNodeArray m_logE; //!< log(E) nodes for Aeff interpolation
std::vector<double> m_aeff; //!< Effective area in cm2
double m_sigma; //!< Sigma for offset angle computation (0=none)
};
/***********************************************************************//**
* @brief Return class name
*
* @return String containing the class name ("GCTAAeffPerfTable").
***************************************************************************/
inline
std::string GCTAAeffPerfTable::classname(void) const
{
return ("GCTAAeffPerfTable");
}
/***********************************************************************//**
* @brief Return filename
*
* @return Returns filename from which effective area was loaded.
***************************************************************************/
inline
std::string GCTAAeffPerfTable::filename(void) const
{
return m_filename;
}
/***********************************************************************//**
* @brief Return number of node energies in response
*
* @return Number of node energies.
***************************************************************************/
inline
int GCTAAeffPerfTable::size(void) const
{
return (m_logE.size());
}
/***********************************************************************//**
* @brief Set sigma for offset angle dependence
*
* @param[in] sigma Sigma for offset angle dependence.
*
* Sets the sigma parameter for the offset angle dependence of the effective
* area. If @p sigma is 0, no offset angle dependency will be assumed. By
* default, @p sigma = 3.
***************************************************************************/
inline
void GCTAAeffPerfTable::sigma(const double& sigma)
{
m_sigma = sigma;
return;
}
/***********************************************************************//**
* @brief Return sigma for offset angle dependence
*
* @return Sigma for offset angle dependence.
***************************************************************************/
inline
const double& GCTAAeffPerfTable::sigma(void) const
{
return (m_sigma);
}
#endif /* GCTAAEFFPERFTABLE_HPP */