GModelSpatialRadialDisk.hpp
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/***************************************************************************
* GModelSpatialRadialDisk.hpp - Radial disk source model class *
* ----------------------------------------------------------------------- *
* copyright (C) 2011-2013 by Christoph Deil *
* ----------------------------------------------------------------------- *
* *
* 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 GModelSpatialRadialDisk.hpp
* @brief Radial disk model class interface definition
* @author Christoph Deil
*/
#ifndef GMODELSPATIALRADIALDISK_HPP
#define GMODELSPATIALRADIALDISK_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GModelSpatialRadial.hpp"
#include "GModelPar.hpp"
#include "GSkyDir.hpp"
#include "GXmlElement.hpp"
/**************************************************************************
* @class GModelSpatialRadialDisk
*
* @brief Disk source model class
*
* This class implements the spatial component of the factorised source
* model for a disk source, i.e. constant surface brightness within some
* radius and no emission outside.
***************************************************************************/
class GModelSpatialRadialDisk : public GModelSpatialRadial {
public:
// Constructors and destructors
GModelSpatialRadialDisk(void);
explicit GModelSpatialRadialDisk(const GSkyDir& dir, const double& radius);
explicit GModelSpatialRadialDisk(const GXmlElement& xml);
GModelSpatialRadialDisk(const GModelSpatialRadialDisk& model);
virtual ~GModelSpatialRadialDisk(void);
// Operators
virtual GModelSpatialRadialDisk& operator=(const GModelSpatialRadialDisk& model);
// Implemented pure virtual base class methods
virtual void clear(void);
virtual GModelSpatialRadialDisk* clone(void) const;
virtual std::string type(void) const;
virtual double eval(const double& theta,
const GEnergy& energy,
const GTime& time) const;
virtual double eval_gradients(const double& theta,
const GEnergy& energy,
const GTime& time) const;
virtual GSkyDir mc(const GEnergy& energy,
const GTime& time,
GRan& ran) const;
virtual double theta_max(void) 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 radius(void) const;
void radius(const double& radius);
protected:
// Protected methods
void init_members(void);
void copy_members(const GModelSpatialRadialDisk& model);
void free_members(void);
void update(void) const;
// Protected members
GModelPar m_radius; //!< Disk radius (degrees)
// Cached members used for pre-computations
mutable double m_last_radius; //!< Last disk radius
mutable double m_radius_rad; //!< Radius in radians
mutable double m_norm; //!< Normalization
};
/***********************************************************************//**
* @brief Return model type
*
* @return "DiskFunction".
*
* Returns the type of the radial disk model.
***************************************************************************/
inline
std::string GModelSpatialRadialDisk::type(void) const
{
return "DiskFunction";
}
/***********************************************************************//**
* @brief Return disk radius
*
* @return Disk radius (degrees).
*
* Returns the radius of the disk in degrees.
***************************************************************************/
inline
double GModelSpatialRadialDisk::radius(void) const
{
return (m_radius.value());
}
/***********************************************************************//**
* @brief Set disk radius
*
* @param[in] radius Disk radius (degrees).
*
* Sets the radius of the disk in degrees.
***************************************************************************/
inline
void GModelSpatialRadialDisk::radius(const double& radius)
{
m_radius.value(radius);
return;
}
#endif /* GMODELSPATIALRADIALDISK_HPP */