This class is used to iterate through an 3D array, where each point then has has multiple higher dimensional variable. This is analogous to Vector3DView, where even if there are multiple higher dimensions they are all alligned into a single vector at each 3D point. This makes them easier to than simple iteration in N-dimensions. More...

#include <iterators.h>

Inherits npl::Slicer.

Public Member Functions
	Vector3DIter ()
	Default constructor. Note, this will segfault if you don't use setArray to set the target NDArray/Image. More...

	Vector3DIter (std::shared_ptr< NDArray > in)

void	setArray (ptr< NDArray > in)

Vector3DIter &	operator++ ()
	Prefix increment operator. More...

Vector3DIter &	operator-- ()
	Prefix decrement operator. More...

T	operator* () const
	Dereference operator. More...

T	get (int64_t i=0) const
	Get value at ith element of vector. More...

T	operator[] (int64_t i) const
	Get value at ith element of vector. More...

void	set (int64_t i, T v)
	Set the value at the ith element of thevector. More...

void	set (T v)
	Set the value at the 0th element of the vector. More...

void	goBegin ()
	Go to beginning of iteration. More...

void	goEnd ()
	Go to end of iteration. More...

bool	isEnd () const
	Are we one past the last element? More...

bool	eof () const
	Are we one past the last element? More...

bool	isBegin () const
	Are we at the first element. More...

bool	operator== (const Vector3DIter &other) const
	Whether the position and parent are the same as another. More...

bool	operator!= (const Vector3DIter &other) const
	Whether the position and parent are different from another. More...

bool	operator< (const Vector3DIter &other) const
	If the parents are different then false, if they are the same, returns whether this iterator is before the other. More...

bool	operator> (const Vector3DIter &other) const
	If the parents are different then false, if they are the same, returns whether this iterator is after the other. More...

bool	operator<= (const Vector3DIter &other) const
	If the parents are different then false, if they are the same, returns whether this iterator is the same or before the other. More...

bool	operator>= (const Vector3DIter &other) const
	If the parents are different then false, if they are the same, returns whether this iterator is the same or after the other. More...

size_t	tlen () const

void	setDim (size_t ndim, const size_t *dim)
	Updates dimensions of target nd array. More...

void	goIndex (size_t len, int64_t *newpos)
	Jump to the given position, additional values in newpos beyond dim will be ignored. Any values missing due to ndim > len will be treated as zeros. More...

void	goIndex (std::vector< int64_t > newpos)
	Jump to the given position. More...

void	index (size_t len, int64_t *index) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

void	index (size_t len, int *index) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

void	index (size_t len, double *index) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

void	index (std::vector< int64_t > &ind) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

void	index (std::vector< int > &ind) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

void	index (std::vector< double > &ind) const
	Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ. More...

int64_t	index (size_t dd) const
	Returns the index in the specified dimension. More...

size_t	linIndex () const
	get linear position of current point More...

int64_t	getStride (size_t dd)
	get stride in specified dimension More...

void	setROI (size_t len, const size_t roisize, const int64_t roistart=NULL)
	Sets the region of interest, with lower bound of 0. During iteration or any motion the position will not move outside the specified range. Invalidates position. More...

void	setROI (const std::vector< std::pair< int64_t, int64_t >> &roi)
	Sets the region of interest. During iteration or any motion the position will not move outside the specified range. Extra elements in roi beyond the number of dimensions, are ignored. More...

void	setOrder (const std::vector< size_t > &order, bool revorder=false)
	Sets the order of iteration from increment operators. More...

void	setOrder (std::initializer_list< size_t > order, bool revorder=false)
	Sets the order of iteration from ++/– operators. More...

void	setOrder ()
	Sets the order of iteration from ++/– operators. Order will be the default (highest to lowest) More...

const std::vector< size_t > &	getOrder () const
	Returns the array giving the order of dimension being traversed. So 3,2,1,0 would mean that the next point in dimension 3 will be next, when wrapping the next point in 2 is visited, when that wraps the next in one and so on. More...

Protected Attributes
size_t	m_linpos

size_t	m_linfirst

std::vector< int64_t >	m_pos

bool	m_end

size_t	m_ndim

std::vector< size_t >	m_order

std::vector< std::pair< int64_t, int64_t > >	m_roi

std::vector< size_t >	m_dim

std::vector< size_t >	m_strides

Detailed Description

template<typename T = double>
class npl::Vector3DIter< T >

This class is used to iterate through an 3D array, where each point then has has multiple higher dimensional variable. This is analogous to Vector3DView, where even if there are multiple higher dimensions they are all alligned into a single vector at each 3D point. This makes them easier to than simple iteration in N-dimensions.

Template Parameters

T

Definition at line 2149 of file iterators.h.

Constructor & Destructor Documentation

template<typename T = double>

npl::Vector3DIter< T >::Vector3DIter ( )

inline

Default constructor. Note, this will segfault if you don't use setArray to set the target NDArray/Image.

Definition at line 2157 of file iterators.h.

template<typename T = double>

npl::Vector3DIter< T >::Vector3DIter ( std::shared_ptr< NDArray > in )

inline

Definition at line 2159 of file iterators.h.

Member Function Documentation

template<typename T = double>

bool npl::Vector3DIter< T >::eof ( ) const

inline

Are we one past the last element?

Definition at line 2360 of file iterators.h.

template<typename T = double>

T npl::Vector3DIter< T >::get ( int64_t i = 0 ) const

inline

Get value at ith element of vector.

Returns: current value

Definition at line 2297 of file iterators.h.

const std::vector<size_t>& npl::Slicer::getOrder ( ) const

inlineinherited

Returns the array giving the order of dimension being traversed. So 3,2,1,0 would mean that the next point in dimension 3 will be next, when wrapping the next point in 2 is visited, when that wraps the next in one and so on.

Returns: Order of dimensions

Definition at line 334 of file slicer.h.

int64_t npl::Slicer::getStride ( size_t dd )

inlineinherited

get stride in specified dimension

Returns: returns stride (change in linear index given a position)

Definition at line 261 of file slicer.h.

template<typename T = double>

void npl::Vector3DIter< T >::goBegin ( )

inline

Go to beginning of iteration.

Definition at line 2345 of file iterators.h.

template<typename T = double>

void npl::Vector3DIter< T >::goEnd ( )

inline

Go to end of iteration.

Definition at line 2350 of file iterators.h.

void npl::Slicer::goIndex	(	size_t	len,
		int64_t *	newpos
	)

inherited

Jump to the given position, additional values in newpos beyond dim will be ignored. Any values missing due to ndim > len will be treated as zeros.

Parameters

len	Length of newpos array
newpos	location to move to

void npl::Slicer::goIndex ( std::vector< int64_t > newpos )

inherited

Jump to the given position.

Parameters

newpos location to move to

void npl::Slicer::index	(	size_t	len,
		int64_t *	index
	)		const

inherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

len	size of index
index	output index variable

void npl::Slicer::index	(	size_t	len,
		int *	index
	)		const

inherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

len	size of index
index	output index variable

void npl::Slicer::index	(	size_t	len,
		double *	index
	)		const

inherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

len	size of index
index	output index variable

void npl::Slicer::index ( std::vector< int64_t > & ind ) const

inlineinherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

ind	output index variable

Definition at line 201 of file slicer.h.

void npl::Slicer::index ( std::vector< int > & ind ) const

inlineinherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

ind	output index variable

Definition at line 215 of file slicer.h.

void npl::Slicer::index ( std::vector< double > & ind ) const

inlineinherited

Places the first len dimension in the given array. If the number of dimensions exceed the len then the additional dimensions will be ignored, if len exceeds the dimensionality then index[dim...len-1] = 0. In other words index will be completely overwritten in the most sane way possible if the internal dimensions and size index differ.

Parameters

ind	output index variable

Definition at line 230 of file slicer.h.

int64_t npl::Slicer::index ( size_t dd ) const

inlineinherited

Returns the index in the specified dimension.

Parameters

dd	Dimension of image to sample index of

Definition at line 240 of file slicer.h.

template<typename T = double>

bool npl::Vector3DIter< T >::isBegin ( ) const

inline

Are we at the first element.

Definition at line 2365 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::isEnd ( ) const

inline

Are we one past the last element?

Definition at line 2355 of file iterators.h.

size_t npl::Slicer::linIndex ( ) const

inlineinherited

get linear position of current point

Returns: returns linear index

Definition at line 251 of file slicer.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator!= ( const Vector3DIter< T > & other ) const

inline

Whether the position and parent are different from another.

Parameters

other

Returns

Definition at line 2386 of file iterators.h.

template<typename T = double>

T npl::Vector3DIter< T >::operator* ( ) const

inline

Dereference operator.

Returns: Value in 0th element of vector

Definition at line 2284 of file iterators.h.

template<typename T = double>

Vector3DIter& npl::Vector3DIter< T >::operator++ ( )

inline

Prefix increment operator.

Returns: new value in 0th element of vector

Definition at line 2262 of file iterators.h.

template<typename T = double>

Vector3DIter& npl::Vector3DIter< T >::operator-- ( )

inline

Prefix decrement operator.

Returns: new value in 0th element of vector

Definition at line 2273 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator< ( const Vector3DIter< T > & other ) const

inline

If the parents are different then false, if they are the same, returns whether this iterator is before the other.

Parameters

other

Returns

Definition at line 2399 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator<= ( const Vector3DIter< T > & other ) const

inline

If the parents are different then false, if they are the same, returns whether this iterator is the same or before the other.

Parameters

other

Returns

Definition at line 2441 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator== ( const Vector3DIter< T > & other ) const

inline

Whether the position and parent are the same as another.

Parameters

other

Returns

Definition at line 2374 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator> ( const Vector3DIter< T > & other ) const

inline

If the parents are different then false, if they are the same, returns whether this iterator is after the other.

Parameters

other

Returns

Definition at line 2420 of file iterators.h.

template<typename T = double>

bool npl::Vector3DIter< T >::operator>= ( const Vector3DIter< T > & other ) const

inline

If the parents are different then false, if they are the same, returns whether this iterator is the same or after the other.

Parameters

other

Returns

Definition at line 2460 of file iterators.h.

template<typename T = double>

T npl::Vector3DIter< T >::operator[] ( int64_t i ) const

inline

Get value at ith element of vector.

Returns: current value

Definition at line 2310 of file iterators.h.

template<typename T = double>

void npl::Vector3DIter< T >::set	(	int64_t	i,
		T	v
	)

inline

Set the value at the ith element of thevector.

Definition at line 2322 of file iterators.h.

template<typename T = double>

void npl::Vector3DIter< T >::set ( T v )

inline

Set the value at the 0th element of the vector.

Definition at line 2334 of file iterators.h.

template<typename T = double>

void npl::Vector3DIter< T >::setArray ( ptr< NDArray > in )

inline

Definition at line 2164 of file iterators.h.

void npl::Slicer::setDim	(	size_t	ndim,
		const size_t *	dim
	)

inherited

Updates dimensions of target nd array.

Parameters

ndim	Rank (dimensionality) of data block, length of dim
dim	Size of data block, in each dimension, so dim = {32, 2,54 } would have 32254 members

void npl::Slicer::setOrder	(	const std::vector< size_t > &	order,
		bool	revorder = `false`
	)

inherited

Sets the order of iteration from increment operators.

Parameters

order	vector of priorities, with first element being the fastest iteration and last the slowest. All other dimensions not used will be slower than the last
revorder	Reverse order, in which case the first element of order will have the slowest iteration, and dimensions not specified in order will be faster than those included.

void npl::Slicer::setOrder	(	std::initializer_list< size_t >	order,
		bool	revorder = `false`
	)

inherited

Sets the order of iteration from ++/– operators.

Parameters

order	vector of priorities, with first element being the fastest iteration and last the slowest. All other dimensions not used will be slower than the last
revorder	Reverse order, in which case the first element of order will have the slowest iteration, and dimensions not specified in order will be faster than those included.

void npl::Slicer::setOrder ( )

inherited

Sets the order of iteration from ++/– operators. Order will be the default (highest to lowest)

void npl::Slicer::setROI	(	size_t	len,
		const size_t *	roisize,
		const int64_t *	roistart = `NULL`
	)

inherited

Sets the region of interest, with lower bound of 0. During iteration or any motion the position will not move outside the specified range. Invalidates position.

Invalidates position

Parameters

len	length of roi array
roisize	Size of ROI (which runs in the block from: [roistart[0] ... roisize[0]-1, roistart[0] ... roisize[1]-1, etc] or, if roistart is Null then [0 ... roisize[0]-1, 0 ... roisize[1]-1, etc]
roistart	Lower corner of region-of-interest

void npl::Slicer::setROI ( const std::vector< std::pair< int64_t, int64_t >> & roi )

inherited

Sets the region of interest. During iteration or any motion the position will not move outside the specified range. Extra elements in roi beyond the number of dimensions, are ignored.

Parameters

roi	pair of [min,max] values in the desired hypercube

template<typename T = double>

size_t npl::Vector3DIter< T >::tlen ( ) const

inline

Definition at line 2471 of file iterators.h.

Member Data Documentation

std::vector<size_t> npl::Slicer::m_dim

protectedinherited

Definition at line 352 of file slicer.h.

bool npl::Slicer::m_end

protectedinherited

Definition at line 347 of file slicer.h.

size_t npl::Slicer::m_linfirst

protectedinherited

Definition at line 345 of file slicer.h.

size_t npl::Slicer::m_linpos

protectedinherited

Definition at line 334 of file slicer.h.

size_t npl::Slicer::m_ndim

protectedinherited

Definition at line 349 of file slicer.h.

std::vector<size_t> npl::Slicer::m_order

protectedinherited

Definition at line 350 of file slicer.h.

std::vector<int64_t> npl::Slicer::m_pos

protectedinherited

Definition at line 346 of file slicer.h.

std::vector<std::pair<int64_t,int64_t> > npl::Slicer::m_roi

protectedinherited

Definition at line 351 of file slicer.h.

std::vector<size_t> npl::Slicer::m_strides

protectedinherited

Definition at line 353 of file slicer.h.

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

/home/micahc/coding/npl/lib/iterators.h

Public Member Functions

Protected Attributes

Detailed Description

template<typename T = double> class npl::Vector3DIter< T >

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

template<typename T = double>
class npl::Vector3DIter< T >