A generic backward iterator on points of windows and of neighborhoods. More...

#include <dpsites_piter.hh>

Inheritance diagram for mln::dpsites_bkd_piter< V >:

Public Types
typedef Site_Proxy< void >	category
typedef dpsites_bkd_piter< V >	exact_t
typedef V::site	site
	The associated site type (as a Site_Proxy).
typedef V	target
	The associated target type.
Public Member Functions
const V::psite &	center () const
	The psite around which this iterator moves.
void	center_at (const P &c)
void	change_target (const V &s)
	Change the site set targeted by this iterator.
V::psite	compute_p_ () const
	Compute the current psite.
void	do_next_ ()
	Go to the next point.
void	do_start_ ()
	Start an iteration.
template<typename P >
	dpsites_bkd_piter (const V &v, const P &c)
	Constructor.
	dpsites_bkd_piter ()
	Constructor without argument.
void	invalidate ()
void	invalidate_ ()
	Invalidate the iterator.
bool	is_valid () const
bool	is_valid_ () const
	Test the iterator validity.
void	next ()
	Go to the next element.
void	next_ ()
	Go to the next point.
const V::psite &	p_hook_ () const
	Hook to the current location.
const V &	site_set () const
	Give the site set (neighborhood or window) that this iterator browses.
void	start ()
void	start_ ()
	Start an iteration.
const V::psite &	subj_ ()
	This overriding is very useful: it adds a test to prevent getting an invalid iterator when its center has moved.
const V *&	target_ ()
	Give the target address. It might be 0.
const V::site &	to_site () const
	Return the site it points to (as a Site_Proxy).
dpsites_bkd_piter< V > &	update ()
	Warning: this method is an advanced tool provided for very special occasions; if you are a regular user, you should never use it! Calling this method forces this relative iterator to synchronize with its center when it has just moved and when the relative iterator still makes sense.
Protected Attributes
const V::psite *	c_
	A pointer to the center psite around which this iterator moves.
int	i_
const V *	s_
	The target.

Detailed Description

template<typename V>
class mln::dpsites_bkd_piter< V >

A generic backward iterator on points of windows and of neighborhoods.

The parameter V is the type of std::vector enclosing structure.

Member Typedef Documentation

typedef Site_Proxy<void> mln::Site_Proxy< dpsites_bkd_piter< V > >::category [inherited]

Reimplemented from mln::Proxy< dpsites_bkd_piter< V > >.

typedef dpsites_bkd_piter< V > mln::Object< dpsites_bkd_piter< V > >::exact_t [inherited]

typedef V ::site mln::internal::site_iterator_base< V , dpsites_bkd_piter< V > >::site [inherited]

The associated site type (as a Site_Proxy).

typedef V mln::internal::site_iterator_base< V , dpsites_bkd_piter< V > >::target [inherited]

The associated target type.

Constructor & Destructor Documentation

template<typename V >

template<typename P >

mln::dpsites_bkd_piter< V >::dpsites_bkd_piter	(	const V &	v,
		const P &	c
	)			`[inline]`

Constructor.

Parameters:

`[in]`	v	Object that can provide an array of delta-points.
`[in]`	c	Center point to iterate around.

References mln::internal::site_relative_iterator_base< V, dpsites_bkd_piter< V > >::center_at(), and mln::internal::site_relative_iterator_base< V, dpsites_bkd_piter< V > >::change_target().

template<typename V >

mln::dpsites_bkd_piter< V >::dpsites_bkd_piter ( ) [inline]

Constructor without argument.

Member Function Documentation

const V ::psite& mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::center ( ) const [inherited]

The psite around which this iterator moves.

void mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::center_at ( const P & c ) [inherited]

Referenced by mln::dpsites_bkd_piter< V >::dpsites_bkd_piter().

void mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::change_target ( const V & s ) [inherited]

Change the site set targeted by this iterator.

Referenced by mln::dpsites_bkd_piter< V >::dpsites_bkd_piter().

template<typename V >

V::psite mln::dpsites_bkd_piter< V >::compute_p_ ( ) const [inline]

Compute the current psite.

template<typename V >

void mln::dpsites_bkd_piter< V >::do_next_ ( ) [inline]

Go to the next point.

References mln::dpsites_bkd_piter< V >::i_.

template<typename V >

void mln::dpsites_bkd_piter< V >::do_start_ ( ) [inline]

Start an iteration.

References mln::dpsites_bkd_piter< V >::i_, and mln::internal::site_iterator_base< V, dpsites_bkd_piter< V > >::s_.

void mln::Site_Iterator< dpsites_bkd_piter< V > >::invalidate ( ) [inherited]

template<typename V >

void mln::dpsites_bkd_piter< V >::invalidate_ ( ) [inline]

Invalidate the iterator.

References mln::dpsites_bkd_piter< V >::i_.

bool mln::Site_Iterator< dpsites_bkd_piter< V > >::is_valid ( ) const [inherited]

template<typename V >

bool mln::dpsites_bkd_piter< V >::is_valid_ ( ) const [inline]

Test the iterator validity.

References mln::dpsites_bkd_piter< V >::i_.

void mln::Site_Iterator< dpsites_bkd_piter< V > >::next ( ) [inherited]

Go to the next element.

Warning:: This is a final method; iterator classes should not re-defined this method. The actual "next" operation has to be defined through the next_ method.

Precondition:: The iterator is valid.

void mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::next_ ( ) [inherited]

Go to the next point.

const V ::psite& mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::p_hook_ ( ) const [inherited]

Hook to the current location.

const V & mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::site_set ( ) const [inherited]

Give the site set (neighborhood or window) that this iterator browses.

void mln::Site_Iterator< dpsites_bkd_piter< V > >::start ( ) [inherited]

void mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::start_ ( ) [inherited]

Start an iteration.

const V ::psite& mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::subj_ ( ) [inherited]

This overriding is very useful: it adds a test to prevent getting an invalid iterator when its center has moved.

Some sub-classes provide an update() method for the client to say that she really want to read the iterator just after the center has changed.

Reimplemented from mln::internal::site_iterator_base< V, dpsites_bkd_piter< V > >.

const V *& mln::internal::site_iterator_base< V , dpsites_bkd_piter< V > >::target_ ( ) [inherited]

Give the target address. It might be 0.

const V ::site& mln::internal::site_iterator_base< V , dpsites_bkd_piter< V > >::to_site ( ) const [inherited]

Return the site it points to (as a Site_Proxy).

dpsites_bkd_piter< V > & mln::internal::site_relative_iterator_base< V , dpsites_bkd_piter< V > >::update ( ) [inherited]

Warning: this method is an advanced tool provided for very special occasions; if you are a regular user, you should never use it! Calling this method forces this relative iterator to synchronize with its center when it has just moved and when the relative iterator still makes sense.