Class for Parallelproj's forward projector. More...

#include "stir/recon_buildblock/Parallelproj_projector/ForwardProjectorByBinParallelproj.h"

Inheritance diagram for stir::ForwardProjectorByBinParallelproj:

[legend]

Public Member Functions
	ForwardProjectorByBinParallelproj ()
	Default constructor calls reset_timers()

	~ForwardProjectorByBinParallelproj () override
	Constructor.

void	initialise_keymap () override
	Keymap.

void	set_up (const shared_ptr< const ProjDataInfo > &proj_data_info_ptr, const shared_ptr< const DiscretisedDensity< 3, float >> &density_info_sptr) override
	Stores all necessary geometric info. More...

const DataSymmetriesForViewSegmentNumbers *	get_symmetries_used () const override
	Symmetries not used, so returns TrivialDataSymmetriesForBins.

void	set_input (const DiscretisedDensity< 3, float > &) override
	Set input.

void	set_defaults () override
	set defaults

void	set_verbosity (const bool verbosity)
	Set verbosity.

void	set_use_truncation (const bool use_truncation)
	Set use truncation - truncate before forward projection and after back projection.

void	set_num_gpu_chunks (int num_gpu_chunks)

int	get_num_gpu_chunks ()

Public Member Functions inherited from stir::RegisteredParsingObject< ForwardProjectorByBinParallelproj, ForwardProjectorByBin >
std::string	get_registered_name () const override
	Returns Derived::registered_name.

std::string	parameter_info () override
	Returns a string with all parameters and their values, in a form suitable for parsing again.

Public Member Functions inherited from stir::ForwardProjectorByBin
	ForwardProjectorByBin ()
	Default constructor calls reset_timers()

void	forward_project (ProjData &, const DiscretisedDensity< 3, float > &, int subset_num=0, int num_subsets=1, bool zero=true)
	project the volume into the whole or a subset of proj_data, optionally zeroing the rest More...

virtual void	forward_project (ProjData &, int subset_num=0, int num_subsets=1, bool zero=true)
	project the volume into the whole proj_data More...

void	forward_project (RelatedViewgrams< float > &)
	project the volume into the viewgrams More...

void	forward_project (RelatedViewgrams< float > &, const int min_axial_pos_num, const int max_axial_pos_num)

void	forward_project (RelatedViewgrams< float > &, const int min_axial_pos_num, const int max_axial_pos_num, const int min_tangential_pos_num, const int max_tangential_pos_num)

void	set_pre_data_processor (shared_ptr< DataProcessor< DiscretisedDensity< 3, float >>> pre_data_processor_sptr)
	Set data processor to use before forward projection. MUST BE CALLED BEFORE SET_INPUT.

Public Member Functions inherited from stir::TimedObject
void	reset_timers ()
	reset all timers kept by this object

void	stop_timers () const
	stop all timers kept by this object More...

void	start_timers (bool do_reset=false) const
	start all timers kept by this object More...

double	get_CPU_timer_value () const
	get current value of the CPU timer (since first use or last reset)

double	get_wall_clock_timer_value () const
	get current value of the wall-clock timer (since first use or last reset)

Public Member Functions inherited from stir::ParsingObject
	ParsingObject (const ParsingObject &)

ParsingObject &	operator= (const ParsingObject &)

void	ask_parameters ()

bool	parse (std::istream &f)

bool	parse (const char *const filename)

Static Public Attributes
static const char *const	registered_name = "Parallelproj"
	Name which will be used when parsing a ForwardProjectorByBin object.

Protected Member Functions
void	actual_forward_project (RelatedViewgrams< float > &viewgrams, const int min_axial_pos_num, const int max_axial_pos_num, const int min_tangential_pos_num, const int max_tangential_pos_num) override

Protected Member Functions inherited from stir::ForwardProjectorByBin
virtual void	actual_forward_project (RelatedViewgrams< float > &, const DiscretisedDensity< 3, float > &, const int min_axial_pos_num, const int max_axial_pos_num, const int min_tangential_pos_num, const int max_tangential_pos_num)
	This virtual function has to be implemented by the derived class.

virtual void	check (const ProjDataInfo &proj_data_info) const
	check if the argument is the same as what was used for set_up() More...

virtual void	check (const ProjDataInfo &proj_data_info, const DiscretisedDensity< 3, float > &density_info) const
	check if the arguments are the same as what was used for set_up() More...

Protected Member Functions inherited from stir::ParsingObject
virtual bool	post_processing ()
	This will be called at the end of the parsing. More...

virtual void	set_key_values ()
	This will be called before parsing or parameter_info is called. More...

Friends
class	ProjectorByBinPairUsingParallelproj

Additional Inherited Members
Static Public Member Functions inherited from stir::RegisteredParsingObject< ForwardProjectorByBinParallelproj, ForwardProjectorByBin >
static ForwardProjectorByBin *	read_from_stream (std::istream *)
	Construct a new object (of type Derived) by parsing the istream. More...

Static Public Member Functions inherited from stir::RegisteredObject< ForwardProjectorByBin >
static ForwardProjectorByBin *	read_registered_object (std::istream *in, const std::string &registered_name)
	Construct a new object (of a type derived from Root, its actual type determined by the registered_name parameter) by parsing the istream. More...

static ForwardProjectorByBin *	ask_type_and_parameters ()
	ask the user for the type, and then calls read_registered_object(0, type) More...

static void	list_registered_names (std::ostream &stream)
	List all possible registered names to the stream. More...

Protected Types inherited from stir::RegisteredObject< ForwardProjectorByBin >
typedef ForwardProjectorByBin (	RootFactory) (std::istream *)
	The type of a root factory is a function, taking an istream* as argument, and returning a Root*.

typedef FactoryRegistry< std::string, RootFactory, interfile_less >	RegistryType
	The type of the registry.

Static Protected Member Functions inherited from stir::RegisteredObject< ForwardProjectorByBin >
static RegistryType &	registry ()
	Static function returning the registry. More...

Protected Attributes inherited from stir::ForwardProjectorByBin
bool	_already_set_up

shared_ptr< DiscretisedDensity< 3, float > >	_density_sptr
	The density ptr set with set_up()

shared_ptr< DataProcessor< DiscretisedDensity< 3, float > > >	_pre_data_processor_sptr

shared_ptr< const ProjDataInfo >	_proj_data_info_sptr
	ProjDataInfo set by set_up()

Protected Attributes inherited from stir::ParsingObject
KeyParser	parser

Detailed Description

Class for Parallelproj's forward projector.

Member Function Documentation

◆ set_up()

void stir::ForwardProjectorByBinParallelproj::set_up	(	const shared_ptr< const ProjDataInfo > &	proj_data_info_ptr,
		const shared_ptr< const DiscretisedDensity< 3, float >> &	density_info_sptr
	)

overridevirtual

Stores all necessary geometric info.

If necessary, set_up() can be called more than once.

Derived classes can assume that forward_project() will be called with input corresponding to the arguments of the last call to set_up().

Warning: there is currently no check on this.; Derived classes have to call set_up from the base class.

Implements stir::ForwardProjectorByBin.

References stir::ForwardProjectorByBin::_density_sptr, stir::ForwardProjectorByBin::check(), stir::error(), and stir::ForwardProjectorByBin::set_up().

The documentation for this class was generated from the following files:

/home/sirfuser/devel/STIRdistrib/STIR/src/include/stir/recon_buildblock/Parallelproj_projector/ForwardProjectorByBinParallelproj.h
/home/sirfuser/devel/STIRdistrib/STIR/src/recon_buildblock/Parallelproj_projector/ForwardProjectorByBinParallelproj.cxx

Public Member Functions

Static Public Attributes

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ set_up()