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.
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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 |
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typedef parent_t::difference_type | difference_type |
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typedef parent_t::reference | reference |
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typedef Deref::argument_type | point_t |
Public Member Functions |
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| position_iterator (const point_t &p, const point_t &step, const Deref &d) |
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| position_iterator (const position_iterator &p) |
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template<typename D> |
| | position_iterator (const position_iterator< D, Dim > &p) |
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position_iterator & | operator= (const position_iterator &p) |
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const point_t & | pos () const |
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const point_t & | step () const |
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const Deref & | deref_fn () const |
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void | set_step (difference_type s) |
| reference | operator[] (difference_type d) const |
Friends |
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struct | position_iterator |
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class | boost::iterator_core_access |
Member Function Documentation
| reference operator[] |
( |
difference_type |
d |
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конст<[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:
1.5.6