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ColumnIterator Class Template Reference
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Iterator adapter to linearly access colums.
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#include "vigra/imageiteratoradapter.hxx"
template<class IMAGE_ITERATOR>
class vigra::ColumnIterator< IMAGE_ITERATOR >
Iterator adapter to linearly access colums.
This iterator may be initialized from any standard ImageIterator, a MultibandImageIterator and so on. It gives you STL-compatible (random access iterator) access to one column of the image. If the underlying iterator is a const iterator, the column iterator will also be const (i.e. doesn't allow to change the values it points to). The iterator gets associated with the accessor of the base iterator.
Note that image iterators usually have a member columnIterator()
which returns a column iterator optimized for that particular image class. ColumnIterator is only necessary if this 'native' column iterator is not usable in a particular situation or is not provided.
#include "vigra/imageiteratoradapter.hxx"
Namespace: vigra
Member Typedef Documentation
typedef IMAGE_ITERATOR Adaptee
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the type of the adapted iterator |
typedef IMAGE_ITERATOR::difference_type::MoveY difference_type
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the iterator's difference type (argument type of iter[diff] ) |
typedef IMAGE_ITERATOR::index_reference index_reference
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the iterator's index reference type (return type of iter[n] ) |
typedef std::random_access_iterator_tag iterator_category
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the iterator tag (random access iterator) |
typedef IMAGE_ITERATOR::value_type PixelType
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the iterator's value type |
typedef IMAGE_ITERATOR::pointer pointer
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the iterator's pointer type (return type of iter.operator->() ) |
typedef IMAGE_ITERATOR::reference reference
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the iterator's reference type (return type of *iter ) |
typedef IMAGE_ITERATOR::value_type value_type
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the iterator's value type |
Constructor & Destructor Documentation
ColumnIterator |
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IMAGE_ITERATOR const & |
i |
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[inline] |
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Construct from an the image iterator to be adapted. |
Member Function Documentation
Adaptee& adaptee |
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const [inline] |
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Get a reference to the adapted iterator |
bool operator!= |
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ColumnIterator< IMAGE_ITERATOR > const & |
c |
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const [inline] |
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ColumnIterator operator+ |
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int |
d |
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const [inline] |
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Construct iterator at a distance. |
int operator- |
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ColumnIterator< IMAGE_ITERATOR > const & |
c |
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const [inline] |
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ColumnIterator operator- |
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int |
d |
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const [inline] |
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Construct iterator at a distance. |
pointer operator-> |
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const [inline] |
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Call member function of current pixel. |
bool operator< |
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ColumnIterator< IMAGE_ITERATOR > const & |
c |
) |
const [inline] |
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ColumnIterator& operator= |
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IMAGE_ITERATOR const & |
i |
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[inline] |
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Assign a new base iterator. |
ColumnIterator& operator= |
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ColumnIterator< IMAGE_ITERATOR > const & |
i |
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[inline] |
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bool operator== |
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ColumnIterator< IMAGE_ITERATOR > const & |
c |
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const [inline] |
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Access pixel at distance d. |
The documentation for this class was generated from the following file: