GModel.cpp
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/***************************************************************************
* GModel.cpp - Model class *
* ----------------------------------------------------------------------- *
* copyright (C) 2009 by Jurgen Knodlseder *
* ----------------------------------------------------------------------- *
* *
* 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 2 of the License, or *
* (at your option) any later version. *
* *
* ----------------------------------------------------------------------- *
***************************************************************************/
/**
* @file GModel.cpp
* @brief GModel class implementation.
* @author J. Knodlseder
*/
/* __ Includes ___________________________________________________________ */
#include "GException.hpp"
#include "GModel.hpp"
#include "GModelTemporalConst.hpp"
/* __ Method name definitions ____________________________________________ */
#define G_PAR "GModel::par(int) const"
#define G_SET_POINTERS "GModel::set_pointers()"
/* __ Macros _____________________________________________________________ */
/* __ Coding definitions _________________________________________________ */
/* __ Debug definitions __________________________________________________ */
/*==========================================================================
= =
= GModel constructors/destructors =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Constructor
***************************************************************************/
GModel::GModel(void)
{
// Initialise private members for clean destruction
init_members();
// Return
return;
}
/***********************************************************************//**
* @brief Construct from spatial and spectral models
*
* @param[in] spatial Spatial model.
* @param[in] spectral Spectral model.
***************************************************************************/
GModel::GModel(const GModelSpatial& spatial, const GModelSpectral& spectral)
{
// Initialise private members for clean destruction
init_members();
// Allocate constant
GModelTemporalConst temporal;
// Clone spatial and spectral models
m_spatial = spatial.clone();
m_spectral = spectral.clone();
m_temporal = temporal.clone();
// Set parameter pointers
set_pointers();
// Return
return;
}
/***********************************************************************//**
* @brief Copy constructor
*
* @param[in] model Model from which the instance should be built.
***************************************************************************/
GModel::GModel(const GModel& model)
{
// Initialise private members for clean destruction
init_members();
// Copy members
copy_members(model);
// Return
return;
}
/***********************************************************************//**
* @brief Destructor
***************************************************************************/
GModel::~GModel()
{
// Free members
free_members();
// Return
return;
}
/*==========================================================================
= =
= GModel operators =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Assignment operator
*
* @param[in] model Model which should be assigned.
***************************************************************************/
GModel& GModel::operator= (const GModel& model)
{
// Execute only if object is not identical
if (this != &model) {
// Free members
free_members();
// Initialise private members for clean destruction
init_members();
// Copy members
copy_members(model);
} // endif: object was not identical
// Return
return *this;
}
/*==========================================================================
= =
= GModel public methods =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Get pointer to model parameter
*
* @param[in] index Parameter index.
***************************************************************************/
GModelPar* GModel::par(int index) const
{
// If index is outside boundary then throw an error
if (index < 0 || index >= m_npars)
throw GException::out_of_range(G_PAR, index, 0, m_npars-1);
// Return parameter pointer
return m_par[index];
}
/***********************************************************************//**
* @brief Evaluate function gradients
***************************************************************************/
void GModel::eval_gradients(GSkyDir* dir, double* energy, double* time)
{
// Evaluate gradients in all components
if (m_spatial != NULL) m_spatial->eval_gradients(dir);
if (m_spectral != NULL) m_spectral->eval_gradients(energy);
if (m_temporal != NULL) m_temporal->eval_gradients(time);
// Return
return;
}
/*==========================================================================
= =
= GModel private methods =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Initialise class members
***************************************************************************/
void GModel::init_members(void)
{
// Initialise members
m_name.clear();
m_npars = 0;
m_par = NULL;
m_spatial = NULL;
m_spectral = NULL;
m_temporal = NULL;
// Return
return;
}
/***********************************************************************//**
* @brief Copy class members
*
* @param[in] model GModel members which should be copied.
***************************************************************************/
void GModel::copy_members(const GModel& model)
{
// Copy attributes
m_name = model.m_name;
m_npars = model.m_npars;
// Clone spatial and spectral models
m_spatial = (model.m_spatial != NULL) ? model.m_spatial->clone() : NULL;
m_spectral = (model.m_spectral != NULL) ? model.m_spectral->clone() : NULL;
m_temporal = (model.m_temporal != NULL) ? model.m_temporal->clone() : NULL;
// Set parameter pointers
set_pointers();
// Return
return;
}
/***********************************************************************//**
* @brief Delete class members
***************************************************************************/
void GModel::free_members(void)
{
// Free memory
if (m_par != NULL) delete [] m_par;
if (m_spatial != NULL) delete m_spatial;
if (m_spectral != NULL) delete m_spectral;
if (m_temporal != NULL) delete m_temporal;
// Signal free pointers
m_par = NULL;
m_spatial = NULL;
m_spectral = NULL;
m_temporal = NULL;
// Return
return;
}
/***********************************************************************//**
* @brief Set parameter pointers
***************************************************************************/
void GModel::set_pointers(void)
{
// Delete old pointers (if they exist)
if (m_par != NULL) delete [] m_par;
m_par = NULL;
// Determine the number of parameters
int n_spatial = (m_spatial != NULL) ? m_spatial->npars() : 0;
int n_spectral = (m_spectral != NULL) ? m_spectral->npars() : 0;
int n_temporal = (m_temporal != NULL) ? m_temporal->npars() : 0;
m_npars = n_spatial + n_spectral + n_temporal;
// Continue only if there are parameters
if (m_npars > 0) {
// Allocate parameter pointers
m_par = new GModelPar*[m_npars];
if (m_par == NULL)
throw GException::mem_alloc(G_SET_POINTERS, m_npars);
// Initialise pointer on pointer array
GModelPar** ptr = m_par;
// Gather spatial parameter pointers
for (int i = 0; i < n_spatial; ++i)
*ptr++ = m_spatial->par(i);
// Gather spectral parameters
for (int i = 0; i < n_spectral; ++i)
*ptr++ = m_spectral->par(i);
// Gather temporal parameters
for (int i = 0; i < n_temporal; ++i)
*ptr++ = m_temporal->par(i);
}
// Return
return;
}
/*==========================================================================
= =
= GModel friends =
= =
==========================================================================*/
/***********************************************************************//**
* @brief Put model in output stream
*
* @param[in] os Output stream into which the model will be dumped
* @param[in] model Model to be dumped
***************************************************************************/
std::ostream& operator<< (std::ostream& os, const GModel& model)
{
// Determine number of parameters per type
int n_spatial = model.m_spatial->npars();
int n_spectral = model.m_spectral->npars();
int n_temporal = model.m_temporal->npars();
// Put model in stream
os << "=== GModel ===" << std::endl;
os << " Name ......................: " << model.m_name << std::endl;
os << " Number of parameters ......: " << model.m_npars << std::endl;
os << " Number of spatial par's ...: " << n_spatial;
int i;
for (i = 0; i < n_spatial; ++i) {
os << std::endl;
os << " Parameter .................: " << *(model.m_par[i]);
}
os << std::endl << " Number of spectral par's ..: " << n_spatial;
for (; i < n_spatial+n_spectral; ++i) {
os << std::endl;
os << " Parameter .................: " << *(model.m_par[i]);
}
os << std::endl << " Number of temporal par's ..: " << n_temporal;
for (; i < n_spatial+n_spectral+n_temporal; ++i) {
os << std::endl;
os << " Parameter .................: " << *(model.m_par[i]);
}
// Return output stream
return os;
}
/*==========================================================================
= =
= Other functions used by GModel =
= =
==========================================================================*/