GModelSpatialDiffuseConst.hpp
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/***************************************************************************
* GModelSpatialDiffuseConst.hpp - Spatial isotropic model class *
* ----------------------------------------------------------------------- *
* copyright (C) 2010-2016 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 GModelSpatialDiffuseConst.hpp
* @brief Isotropic spatial model class interface definition
* @author Juergen Knoedlseder
*/
#ifndef GMODELSPATIALDIFFUSECONST_HPP
#define GMODELSPATIALDIFFUSECONST_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GModelSpatialDiffuse.hpp"
#include "GModelPar.hpp"
#include "GSkyDir.hpp"
#include "GXmlElement.hpp"
/***********************************************************************//**
* @class GModelSpatialDiffuseConst
*
* @brief Isotropic spatial model
*
* This class implements the spatial component of the factorised source
* model for an isotropic source. The model has a single parameter which
* is the normalization factor of the model.
***************************************************************************/
class GModelSpatialDiffuseConst : public GModelSpatialDiffuse {
public:
// Constructors and destructors
GModelSpatialDiffuseConst(void);
explicit GModelSpatialDiffuseConst(const GXmlElement& xml);
explicit GModelSpatialDiffuseConst(const double& value);
GModelSpatialDiffuseConst(const GModelSpatialDiffuseConst& model);
virtual ~GModelSpatialDiffuseConst(void);
// Operators
GModelSpatialDiffuseConst& operator=(const GModelSpatialDiffuseConst& model);
// Implemented pure virtual base class methods
virtual void clear(void);
virtual GModelSpatialDiffuseConst* clone(void) const;
virtual std::string classname(void) const;
virtual std::string type(void) const;
virtual double eval(const GPhoton& photon) const;
virtual double eval_gradients(const GPhoton& photon) const;
virtual GSkyDir mc(const GEnergy& energy,
const GTime& time,
GRan& ran) const;
virtual double mc_norm(const GSkyDir& dir,
const double& radius) const;
virtual bool contains(const GSkyDir& dir,
const double& margin = 0.0) const;
virtual void read(const GXmlElement& xml);
virtual void write(GXmlElement& xml) const;
virtual std::string print(const GChatter& chatter = NORMAL) const;
// Other methods
double value(void) const;
void value(const double& value);
protected:
// Protected methods
void init_members(void);
void copy_members(const GModelSpatialDiffuseConst& model);
void free_members(void);
// Protected members
GModelPar m_value; //!< Value
mutable GSkyDir m_mc_centre; //!< Simulation cone centre
mutable double m_mc_cos_radius; //!< Cosine of simulation cone radius
};
/***********************************************************************//**
* @brief Return class name
*
* @return String containing the class name ("GModelSpatialDiffuseConst").
***************************************************************************/
inline
std::string GModelSpatialDiffuseConst::classname(void) const
{
return ("GModelSpatialDiffuseConst");
}
/***********************************************************************//**
* @brief Return spatial model type
*
* @return "ConstantValue".
*
* Returns the type of the isotropic spatial model.
***************************************************************************/
inline
std::string GModelSpatialDiffuseConst::type(void) const
{
return "ConstantValue";
}
/***********************************************************************//**
* @brief Get model value
*
* @return Model value.
*
* Returns the value of the isotropic spatial model.
***************************************************************************/
inline
double GModelSpatialDiffuseConst::value(void) const
{
return (m_value.value());
}
/***********************************************************************//**
* @brief Set model value
*
* @param[in] value Model value.
*
* Set the value of the isotropic spatial model.
***************************************************************************/
inline
void GModelSpatialDiffuseConst::value(const double& value)
{
m_value.value(value);
return;
}
/***********************************************************************//**
* @brief Signals whether model contains sky direction
*
* @param[in] dir Sky direction.
* @param[in] margin Margin to be added to sky direction (deg, default: 0.0).
* @return True.
*
* Signals whether a sky direction falls within the bounding circle of
* the diffuse model. As the constant model is defined on the entire sphere,
* the method returns always true.
***************************************************************************/
inline
bool GModelSpatialDiffuseConst::contains(const GSkyDir& dir,
const double& margin) const
{
return (true);
}
#endif /* GMODELSPATIALDIFFUSECONST_HPP */