An (abstract base) class for storing 3d projection dataThis stores a subset of the data accessible via a ProjData object, where the SegmentIndices are fixed. More...

#include "stir/Segment.h"

Inheritance diagram for stir::Segment< elemT >:

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Public Types
enum	StorageOrder { StorageByView, StorageBySino }

Public Member Functions
shared_ptr< const ProjDataInfo >	get_proj_data_info_sptr () const
	Get shared pointer to proj data info.

virtual StorageOrder	get_storage_order () const =0

SegmentIndices	get_segment_indices () const

int	get_segment_num () const
	Get the segment number.

int	get_timing_pos_num () const
	Get the timing position index.

virtual int	get_min_axial_pos_num () const =0

virtual int	get_max_axial_pos_num () const =0

virtual int	get_min_view_num () const =0

virtual int	get_max_view_num () const =0

virtual int	get_min_tangential_pos_num () const =0

virtual int	get_max_tangential_pos_num () const =0

virtual int	get_num_axial_poss () const =0

virtual int	get_num_views () const =0

virtual int	get_num_tangential_poss () const =0

virtual Sinogram< elemT >	get_sinogram (int axial_pos_num) const =0
	return a new sinogram, with data set as in the segment

virtual Viewgram< elemT >	get_viewgram (int view_num) const =0
	return a new viewgram, with data set as in the segment

Sinogram< elemT >	get_sinogram (const SinogramIndices &s) const
	return a new sinogram, with data set as in the segment

Viewgram< elemT >	get_viewgram (const ViewgramIndices &) const
	return a new viewgram, with data set as in the segment

virtual void	set_sinogram (const Sinogram< elemT > &s)=0
	set data in segment according to sinogram `s`

virtual void	set_sinogram (const Sinogram< elemT > &s, int axial_pos_num)=0
	set sinogram at a different axial_pos_num

virtual void	set_viewgram (const Viewgram< elemT > &v)=0
	set data in segment according to viewgram `v`

Equality
bool	has_same_characteristics (self_type const &, std::string &explanation) const
	Checks if the 2 objects have the proj_data_info, segment_num etc. More...

bool	has_same_characteristics (self_type const &) const
	Checks if the 2 objects have the proj_data_info, segment_num etc. More...

virtual bool	operator== (const self_type &) const =0
	check equality (data has to be identical) More...

bool	operator!= (const self_type &) const
	negation of operator==

Protected Member Functions
	Segment (const shared_ptr< const ProjDataInfo > &proj_data_info_sptr_v, const SegmentIndices &)

Protected Attributes
shared_ptr< const ProjDataInfo >	proj_data_info_sptr

SegmentIndices	_indices

Detailed Description

template<typename elemT>
class stir::Segment< elemT >

An (abstract base) class for storing 3d projection data

This stores a subset of the data accessible via a ProjData object, where the SegmentIndices are fixed.

At the moment, 2 'storage modes' are supported (and implemented as derived classes).

The template argument elemT is used to specify the data-type of the elements of the 3d object.

Member Function Documentation

◆ has_same_characteristics() [1/2]

template<typename elemT >

bool stir::Segment< elemT >::has_same_characteristics	(	self_type const &	other,
		std::string &	explanation
	)		const

Checks if the 2 objects have the proj_data_info, segment_num etc.

If they do not have the same characteristics, the string explanation explains why.

Referenced by stir::SegmentBySinogram< elemT >::SegmentBySinogram(), and stir::SegmentByView< elemT >::SegmentByView().

◆ has_same_characteristics() [2/2]

template<typename elemT >

bool stir::Segment< elemT >::has_same_characteristics ( self_type const & other ) const

Checks if the 2 objects have the proj_data_info, segment_num etc.

Use this version if you do not need to know why they do not match.

◆ operator==()

template<typename elemT>

virtual bool stir::Segment< elemT >::operator== ( const self_type & ) const

pure virtual

check equality (data has to be identical)

Uses has_same_characteristics() and Array::operator==.

Warning: This function uses ==, which might not be what you need to check when elemT has data with float or double numbers.

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

/home/sirfuser/devel/STIRdistrib/STIR/src/include/stir/Segment.h
/home/sirfuser/devel/STIRdistrib/STIR/src/buildblock/Segment.cxx
/home/sirfuser/devel/STIRdistrib/STIR/src/include/stir/Segment.inl

Public Types

Public Member Functions

Protected Member Functions