COMPTEL event bin container class. More...

#include <GCOMEventCube.hpp>

Inheritance diagram for GCOMEventCube:

Public Member Functions
	GCOMEventCube (void)
	Void constructor. More...

	GCOMEventCube (const GFilename &filename)
	Load constructor. More...

	GCOMEventCube (const GCOMDri &dre)
	DRE constructor. More...

	GCOMEventCube (const GCOMEventCube &cube)
	Copy constructor. More...

virtual	~GCOMEventCube (void)
	Destructor. More...

virtual GCOMEventCube &	operator= (const GCOMEventCube &cube)
	Assignment operator. More...

virtual GCOMEventBin *	operator[] (const int &index)
	Event bin access operator. More...

virtual const GCOMEventBin *	operator[] (const int &index) const
	Event bin access operator (const version) More...

virtual void	clear (void)
	Clear instance. More...

virtual GCOMEventCube *	clone (void) const
	Clone instance. More...

virtual std::string	classname (void) const
	Return class name. More...

virtual int	size (void) const
	Return number of bins in event cube. More...

virtual int	dim (void) const
	Return dimension of event cube. More...

virtual int	naxis (const int &axis) const
	Return number of bins in axis. More...

virtual void	load (const GFilename &filename)
	Load COMPTEL event cube from FITS file. More...

virtual void	save (const GFilename &filename, const bool &clobber=false) const
	Save COMPTEL event cube into FITS file. More...

virtual void	read (const GFits &file)
	Read COMPTEL event cube from FITS file. More...

virtual void	write (GFits &file) const
	Write COMPTEL event cube into FITS file. More...

virtual int	number (void) const
	Return number of events in cube. More...

virtual std::string	print (const GChatter &chatter=NORMAL) const
	Print event cube information. More...

const GCOMDri &	dre (void) const
	Return reference to DRE data. More...

Public Member Functions inherited from GEventCube
	GEventCube (void)
	Void constructor. More...

	GEventCube (const GEventCube &cube)
	Copy constructor. More...

virtual	~GEventCube (void)
	Destructor. More...

virtual GEventCube &	operator= (const GEventCube &cube)
	Assignment operator. More...

Public Member Functions inherited from GEvents
	GEvents (void)
	Void constructor. More...

	GEvents (const GEvents &events)
	Copy constructor. More...

virtual	~GEvents (void)
	Destructor. More...

virtual GEvents &	operator= (const GEvents &events)
	Assignment operator. More...

void	ebounds (const GEbounds &ebounds)
	Set energy boundaries. More...

void	gti (const GGti &gti)
	Set Good Time Intervals. More...

const GEbounds &	ebounds (void) const
	Return energy boundaries. More...

const GGti &	gti (void) const
	Return Good Time Intervals. More...

const GTime &	tstart (void) const
	Return start time. More...

const GTime &	tstop (void) const
	Return stop time. More...

const GEnergy &	emin (void) const
	Return minimum energy. More...

const GEnergy &	emax (void) const
	Return maximum energy. More...

Public Member Functions inherited from GBase
virtual	~GBase (void)
	Destructor. More...

Protected Member Functions
void	init_members (void)
	Initialise class members. More...

void	copy_members (const GCOMEventCube &cube)
	Copy class members. More...

void	free_members (void)
	Delete class members. More...

void	init_cube (void)
	Initialise event cube. More...

void	set_scatter_directions (void)
	Set sky directions and solid angles of events cube. More...

void	set_scatter_angles (void)
	Set Compton scatter angles of event cube. More...

virtual void	set_energies (void)
	Set log mean energy and energy width of event cube. More...

virtual void	set_times (void)
	Set mean event time and ontime of event cube. More...

void	init_bin (void)
	Initialise event bin. More...

void	set_bin (const int &index)
	Set event bin. More...

Protected Member Functions inherited from GEventCube
void	init_members (void)
	Initialise class members. More...

void	copy_members (const GEventCube &cube)
	Copy class members. More...

void	free_members (void)
	Delete class members. More...

Protected Member Functions inherited from GEvents
void	init_members (void)
	Initialise class members. More...

void	copy_members (const GEvents &events)
	Copy class members. More...

void	free_members (void)
	Delete class members. More...

Protected Attributes
GCOMEventBin	m_bin
	Actual event bin. More...

GCOMInstDir	m_dir
	Actual event direction. More...

GCOMDri	m_dri
	DRI cube. More...

GTime	m_time
	Event cube mean time. More...

double	m_ontime
	Event cube ontime (sec) More...

GEnergy	m_energy
	Event cube mean energy. More...

GEnergy	m_ewidth
	Event cube energy bin width. More...

int	m_npix
	Number of DRI pixels. More...

std::vector< GSkyDir >	m_dirs
	Array of event scatter directions. More...

std::vector< double >	m_solidangle
	Array of solid angles (sr) More...

std::vector< double >	m_phibar
	Array of event scatter angles. More...

Protected Attributes inherited from GEvents
GEbounds	m_ebounds
	Energy boundaries covered by events. More...

GGti	m_gti
	Good time intervals covered by events. More...

Detailed Description

COMPTEL event bin container class.

This class is a container class for COMPTEL event bins.

Definition at line 54 of file GCOMEventCube.hpp.

Constructor & Destructor Documentation

GCOMEventCube::GCOMEventCube ( void )

Void constructor.

Constructs an empty event cube.

Definition at line 65 of file GCOMEventCube.cpp.

References init_members().

Referenced by clone().

GCOMEventCube::GCOMEventCube ( const GFilename & filename )

explicit

Load constructor.

Parameters

[in] filename DRE FITS filename.

Constructs an event cube from a DRE FITS file.

Definition at line 82 of file GCOMEventCube.cpp.

References init_members(), and load().

GCOMEventCube::GCOMEventCube ( const GCOMDri & dre )

explicit

DRE constructor.

Parameters

[in] dre DRE event cube.

Constructs an event cube from a DRE event cube.

Definition at line 102 of file GCOMEventCube.cpp.

References dre(), init_cube(), init_members(), and m_dri.

GCOMEventCube::GCOMEventCube ( const GCOMEventCube & cube )

Copy constructor.

Parameters

[in] cube Event cube.

Definition at line 123 of file GCOMEventCube.cpp.

References copy_members(), and init_members().

GCOMEventCube::~GCOMEventCube ( void )

virtual

Destructor.

Definition at line 139 of file GCOMEventCube.cpp.

References free_members().

Member Function Documentation

std::string GCOMEventCube::classname ( void ) const

inlinevirtual

Return class name.

Returns: String containing the class name ("GCOMEventCube").

Implements GEventCube.

Definition at line 121 of file GCOMEventCube.hpp.

void GCOMEventCube::clear ( void )

virtual

Clear instance.

This method properly resets the object to an initial state.

Implements GEventCube.

Definition at line 236 of file GCOMEventCube.cpp.

References GEventCube::free_members(), free_members(), GEvents::free_members(), GEventCube::init_members(), init_members(), and GEvents::init_members().

Referenced by read().

GCOMEventCube * GCOMEventCube::clone ( void ) const

virtual

Clone instance.

Returns: Pointer to deep copy of event cube.

Implements GEventCube.

Definition at line 258 of file GCOMEventCube.cpp.

References GCOMEventCube().

void GCOMEventCube::copy_members ( const GCOMEventCube & cube )

protected

Copy class members.

Parameters

[in] cube Event cube.

This method copies the class members from another event cube in the actual object. It also prepares the event bin member that will be returned in case of an operator access to the class.

Definition at line 552 of file GCOMEventCube.cpp.

References init_bin(), m_dir, m_dirs, m_dri, m_energy, m_ewidth, m_npix, m_ontime, m_phibar, m_solidangle, and m_time.

Referenced by GCOMEventCube(), and operator=().

int GCOMEventCube::dim ( void ) const

virtual

Return dimension of event cube.

Returns: Number of dimensions in event cube.

The dimension of the cube is either 2 or 3, depending on whether several scatter angle layers exist or not.

Implements GEventCube.

Definition at line 272 of file GCOMEventCube.cpp.

References m_dri, and GCOMDri::nphibar().

Referenced by naxis().

const GCOMDri & GCOMEventCube::dre ( void ) const

inline

Return reference to DRE data.

Returns: Reference to DRE data.

Definition at line 145 of file GCOMEventCube.hpp.

References m_dri.

Referenced by GCOMObservation::compute_drb_bgdlixa(), GCOMObservation::compute_drb_bgdlixe(), GCOMObservation::compute_drb_bgdlixf(), GCOMObservation::compute_drb_phinor(), GCOMObservation::drm(), GCOMEventCube(), GCOMResponse::irf(), GCOMResponse::irf_diffuse(), GCOMResponse::irf_elliptical(), GCOMResponse::irf_ptsrc(), and GCOMResponse::irf_radial().

void GCOMEventCube::free_members ( void )

protected

Delete class members.

Definition at line 580 of file GCOMEventCube.cpp.

Referenced by clear(), operator=(), and ~GCOMEventCube().

void GCOMEventCube::init_bin ( void )

protected

Initialise event bin.

This method initialises the event bin. The event bin is cleared and all fixed pointers are set. Only the m_counts and the m_solidangle member of the event bin will be set to NULL, but these will be set by the set_bin method which is called before any event bin access.

< Will be set by set_bin method

< Content will be set by set_bin method

< Will be set by set_bin method

< Fixed content

Definition at line 761 of file GCOMEventCube.cpp.

References GCOMEventBin::free_members(), m_bin, GCOMEventBin::m_counts, GCOMEventBin::m_dir, m_dir, GCOMEventBin::m_energy, m_energy, GCOMEventBin::m_ewidth, m_ewidth, GCOMEventBin::m_ontime, m_ontime, GCOMEventBin::m_solidangle, GCOMEventBin::m_time, and m_time.

Referenced by copy_members(), and init_members().

void GCOMEventCube::init_cube ( void )

protected

Initialise event cube.

This method needs to be called once a new DRI dataset has been read.

The method copies the energy boundaries and the Good Time Intervals from the DRI cube into the event cube and sets up arrays that will be used for event bin access. In particular, the set_scatter_directions(), set_scatter_angles(), set_energies() and set_times() methods will be called by this method.

Definition at line 598 of file GCOMEventCube.cpp.

References GEvents::ebounds(), GCOMDri::ebounds(), GEvents::gti(), GCOMDri::gti(), m_dri, set_energies(), set_scatter_angles(), set_scatter_directions(), and set_times().

Referenced by GCOMEventCube(), and read().

void GCOMEventCube::init_members ( void )

protected

Initialise class members.

The method initialises the class members to a well defined state. It also prepares the event bin member that will be returned in case of an operator access to the class. As the event bin member manipulates pointers, it will be possible to directly write to the memory that has been associated with a bin.

Definition at line 520 of file GCOMEventCube.cpp.

References GCOMInstDir::clear(), GCOMEventBin::clear(), GEnergy::clear(), GCOMDri::clear(), GTime::clear(), init_bin(), m_bin, m_dir, m_dirs, m_dri, m_energy, m_ewidth, m_npix, m_ontime, m_phibar, m_solidangle, and m_time.

Referenced by clear(), GCOMEventCube(), and operator=().

void GCOMEventCube::load ( const GFilename & filename )

virtual

Load COMPTEL event cube from FITS file.

Parameters

[in] filename FITS filename.

Loads the event cube from a DRE FITS file.

Implements GEventCube.

Definition at line 328 of file GCOMEventCube.cpp.

References GFits::close(), and read().

Referenced by GCOMEventCube().

int GCOMEventCube::naxis ( const int & axis ) const

virtual

Return number of bins in axis.

Parameters

[in] axis Axis [0,...,dim()-1].

Returns: Number of bins in axis.

Exceptions

GException::out_of_range Axis is out of range.

Returns the number of bins along a given event cube axis.

Implements GEventCube.

Definition at line 293 of file GCOMEventCube.cpp.

References dim(), G_NAXIS, m_dri, GCOMDri::nchi(), GCOMDri::nphibar(), and GCOMDri::npsi().

Referenced by GCOMResponse::irf_diffuse(), GCOMResponse::irf_elliptical(), GCOMResponse::irf_ptsrc(), and GCOMResponse::irf_radial().

int GCOMEventCube::number ( void ) const

virtual

Return number of events in cube.

Returns: Number of events in event cube.

This method returns the number of events in the event cube rounded to the nearest integer.

Implements GEventCube.

Definition at line 419 of file GCOMEventCube.cpp.

References m_dri, and GCOMDri::size().

Referenced by print().

GCOMEventCube & GCOMEventCube::operator= ( const GCOMEventCube & cube )

virtual

Assignment operator.

Parameters

[in] cube Event cube.

Returns: Event cube.

Definition at line 161 of file GCOMEventCube.cpp.

References copy_members(), free_members(), init_members(), and GEventCube::operator=().

GCOMEventBin * GCOMEventCube::operator[] ( const int & index )

virtual

Event bin access operator.

Parameters

[in] index Event index [0,...,size()-1].

Returns: Pointer to event bin.

Returns pointer to an event bin. Note that the returned pointer is in fact always the same, but the method sets the pointers within the event bin so that they point to the appropriate information.

Implements GEventCube.

Definition at line 195 of file GCOMEventCube.cpp.

References m_bin, and set_bin().

const GCOMEventBin * GCOMEventCube::operator[] ( const int & index ) const

virtual

Event bin access operator (const version)

Parameters

[in] index Event index [0,...,size()-1].

Returns: Const pointer to event bin.

Returns pointer to an event bin. Note that the returned pointer is in fact always the same, but the method sets the pointers within the event bin so that they point to the appropriate information.

Implements GEventCube.

Definition at line 215 of file GCOMEventCube.cpp.

References m_bin, and set_bin().

std::string GCOMEventCube::print ( const GChatter & chatter = NORMAL ) const

virtual

Print event cube information.

Parameters

[in] chatter Chattiness.

Returns: String containing event cube information.

Implements GEventCube.

Definition at line 440 of file GCOMEventCube.cpp.

References gammalib::com_tics(), gammalib::com_tjd(), GEvents::emax(), GEvents::emin(), EXPLICIT, m_dri, m_energy, m_ewidth, m_ontime, m_time, GCOMDri::nchi(), GCOMDri::nphibar(), GCOMDri::npsi(), number(), gammalib::parformat(), GCOMDri::phase_correction(), GCOMDri::print(), GEnergy::print(), GTime::print(), SILENT, size(), gammalib::str(), GCOMDri::tof_correction(), GEvents::tstart(), and GEvents::tstop().

void GCOMEventCube::read ( const GFits & fits )

virtual

Read COMPTEL event cube from FITS file.

Parameters

[in] fits FITS file.

Reads an COMPTEL event cube from a DRE FITS file.

Implements GEventCube.

Definition at line 375 of file GCOMEventCube.cpp.

References clear(), GFits::image(), init_cube(), m_dri, and GCOMDri::read().

Referenced by load().

void GCOMEventCube::save	(	const GFilename &	filename,
		const bool &	clobber = `false`
	)		const

virtual

Save COMPTEL event cube into FITS file.

Parameters

[in]	filename	FITS filename.
[in]	clobber	Overwrite existing FITS file? (default: false).

Saves the COMPTEL event cube into a DRE FITS file.

Implements GEventCube.

Definition at line 352 of file GCOMEventCube.cpp.

References GFits::saveto(), and write().

void GCOMEventCube::set_bin ( const int & index )

protected

Set event bin.

Parameters

[in] index Event index [0,...,size()[.

Exceptions

GException::out_of_range	Event index is outside valid range.
GException::invalid_value	Sky directions and solid angles vectors have not been set up.

This method provides the event attributes to the event bin. The event bin is in fact physically stored in the event cube, and only a single event bin is indeed allocated. This method sets up the pointers in the event bin so that a client can easily access the information of individual bins as if they were stored in an array.

Definition at line 794 of file GCOMEventCube.cpp.

References GCOMInstDir::dir(), G_SET_BIN, m_bin, GCOMEventBin::m_counts, m_dir, m_dirs, m_dri, GCOMEventBin::m_index, m_npix, m_phibar, GCOMEventBin::m_solidangle, m_solidangle, GCOMInstDir::phibar(), and size().

Referenced by operator[]().

void GCOMEventCube::set_energies ( void )

protectedvirtual

Set log mean energy and energy width of event cube.

Exceptions

GException::invalid_value No energy boundaries found.

Computes the mean energy and energy bin width of the event cube.

Reimplemented from GEventCube.

Definition at line 701 of file GCOMEventCube.cpp.

References GEbounds::elogmean(), GEbounds::emax(), GEbounds::emin(), G_SET_ENERGIES, GEvents::m_ebounds, m_energy, m_ewidth, and GEbounds::size().

Referenced by init_cube().

void GCOMEventCube::set_scatter_angles ( void )

protected

Set Compton scatter angles of event cube.

Sets a vector of the Compton scatter angles.

Definition at line 674 of file GCOMEventCube.cpp.

References m_dri, m_phibar, GCOMDri::nphibar(), GCOMDri::phibin(), and GCOMDri::phimin().

Referenced by init_cube().

void GCOMEventCube::set_scatter_directions ( void )

protected

Set sky directions and solid angles of events cube.

Exceptions

GException::invalid_value No sky pixels have been defined.

This method computes the sky directions and solid angles for all (Chi,Psi) values of the event cube. Sky directions are stored in an array of GSkyDir objects while solid angles are stored in units of sr in an array of double precision variables.

Definition at line 634 of file GCOMEventCube.cpp.

References G_SET_SCATTER_DIRECTIONS, m_dirs, m_dri, m_npix, m_solidangle, GCOMDri::map(), GCOMDri::nchi(), GCOMDri::npsi(), GSkyMap::pix2dir(), and GSkyMap::solidangle().

Referenced by init_cube().

void GCOMEventCube::set_times ( void )

protectedvirtual

Set mean event time and ontime of event cube.

Exceptions

GException::invalid_value No Good Time Intervals found.

Computes the mean time of the event cube by taking the mean between start and stop time. Computes also the ontime by summing up of all good time intervals.

Reimplemented from GEventCube.

Definition at line 732 of file GCOMEventCube.cpp.

References G_SET_TIMES, GEvents::m_gti, m_ontime, m_time, GGti::ontime(), GGti::size(), GGti::tstart(), and GGti::tstop().

Referenced by init_cube().

int GCOMEventCube::size ( void ) const

inlinevirtual

Return number of bins in event cube.