GModelSpatialEllipticalGauss.hpp
6.35 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
/***************************************************************************
* GModelSpatialEllipticalGauss.hpp - Elliptical gauss source model class *
* ----------------------------------------------------------------------- *
* copyright (C) 2015-2016 by Michael Mayer *
* ----------------------------------------------------------------------- *
* *
* 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 GModelSpatialEllipticalGauss.hpp
* @brief Elliptical gauss model class interface definition
* @author Michael Mayer
*/
#ifndef GMODELSPATIALELLIPTICALGAUSS_HPP
#define GMODELSPATIALELLIPTICALGAUSS_HPP
/* __ Includes ___________________________________________________________ */
#include <string>
#include "GModelSpatialElliptical.hpp"
#include "GModelPar.hpp"
#include "GSkyDir.hpp"
#include "GXmlElement.hpp"
/**************************************************************************
* @class GModelSpatialEllipticalGauss
*
* @brief Elliptical gauss source model class
*
* This class implements the spatial component of the factorised source
* model for an elliptical gauss source, i.e. constant surface brightness
* according to an asymmetric Gaussian.
***************************************************************************/
class GModelSpatialEllipticalGauss : public GModelSpatialElliptical {
public:
// Constructors and destructors
GModelSpatialEllipticalGauss(void);
GModelSpatialEllipticalGauss(const bool& dummy, const std::string& type);
GModelSpatialEllipticalGauss(const GSkyDir& dir,
const double& major,
const double& minor,
const double& posangle);
explicit GModelSpatialEllipticalGauss(const GXmlElement& xml);
GModelSpatialEllipticalGauss(const GModelSpatialEllipticalGauss& model);
virtual ~GModelSpatialEllipticalGauss(void);
// Operators
virtual GModelSpatialEllipticalGauss& operator=(const GModelSpatialEllipticalGauss& model);
// Implemented pure virtual base class methods
virtual void clear(void);
virtual GModelSpatialEllipticalGauss* clone(void) const;
virtual std::string classname(void) const;
virtual std::string type(void) const;
virtual double eval(const double& theta,
const double& posangle,
const GEnergy& energy,
const GTime& time,
const bool& gradients = false) const;
virtual GSkyDir mc(const GEnergy& energy,
const GTime& time,
GRan& ran) const;
virtual bool contains(const GSkyDir& dir,
const double& margin = 0.0) 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;
protected:
// Protected methods
void init_members(void);
void copy_members(const GModelSpatialEllipticalGauss& model);
void free_members(void);
void update(void) const;
// Protected members
std::string m_type; //!< Model type
// Cached members used for pre-computations
mutable double m_last_minor; //!< Last semi-minor axis
mutable double m_last_major; //!< Last semi-major axis
mutable double m_last_posangle; //!< Last position angle
mutable double m_cospos2; //!< squared cosine of position angle
mutable double m_sinpos2; //!< squared sine of position angle
mutable double m_sin2pos; //!< sine of twice the position angle
mutable double m_minor2; //!< square of minor axis
mutable double m_major2; //!< square of major axis
mutable double m_minor_rad; //!< Minor axis in radians
mutable double m_major_rad; //!< Major axis in radians
mutable double m_norm; //!< Normalization
mutable double m_term1; //!< Help term 1
mutable double m_term2; //!< Help term 2
mutable double m_term3; //!< Help term 3
};
/***********************************************************************//**
* @brief Return class name
*
* @return String containing the class name ("GModelSpatialEllipticalGauss").
***************************************************************************/
inline
std::string GModelSpatialEllipticalGauss::classname(void) const
{
return ("GModelSpatialEllipticalGauss");
}
/***********************************************************************//**
* @brief Return model type
*
* @return Model type.
*
* Returns the type of the elliptical gauss model.
***************************************************************************/
inline
std::string GModelSpatialEllipticalGauss::type(void) const
{
return (m_type);
}
#endif /* GMODELSPATIALELLIPTICALGAUSS_HPP */