Modules | Alphabetical List | Class List | Directories | File List | GIL Home Page # position_iterator Struct Template Reference [position_iterator, Models] `#include <position_iterator.hpp>` List of all members. ## Detailed Description ### template<typename Deref, int Dim> struct boost::gil::position_iterator< Deref, Dim > An iterator that remembers its current X,Y position and invokes a function object with it upon dereferencing. Models PixelIteratorConcept. Used to create virtual image views. Models: StepIteratorConcept, PixelIteratorConcept, PixelBasedConcept, HasDynamicXStepTypeConcept.
## Public Types
typedef iterator_facade < position_iterator< Deref, Dim >, typename Deref::value_type, random_access_traversal_tag, typename Deref::reference, typename Deref::argument_type::template axis< Dim >::coord_t > | parent_t
typedef parent_t::difference_type | difference_type
typedef parent_t::reference | reference
typedef Deref::argument_type | point_t
## Public Member Functions
| position_iterator (const point_t &p, const point_t &step, const Deref &d)
| position_iterator (const position_iterator &p)
template<typename D>
| position_iterator (const position_iterator< D, Dim > &p)
position_iterator & | operator= (const position_iterator &p)
const point_t & | pos () const
const point_t & | step () const
const Deref & | deref_fn () const
void | set_step (difference_type s)
reference | operator[] (difference_type d) const
## Friends
struct | position_iterator
class | boost::iterator_core_access
## Member Function Documentation
reference operator[] | ( | difference_type | d | ) | const`[inline]`
For some reason operator[] provided by iterator_adaptor returns a custom class that is convertible to reference We require our own reference because it is registered in iterator_traits The documentation for this struct was generated from the following file: position_iterator.hpp