image_view Class Template Reference [Models, Models] #include <image_view.hpp> List of all members. Detailed Description template<typename Loc> class boost::gil::image_view< Loc > A lightweight object that interprets memory as a 2D array of pixels. Models ImageViewConcept,PixelBasedConcept,HasDynamicXStepTypeConcept,HasDynamicYStepTypeConcept,HasTransposedTypeConcept. Image view consists of a pixel 2D locator (defining the mechanism for navigating in 2D) and the image dimensions. Image views to images are what ranges are to STL containers. They are lightweight objects, that don't own the pixels. It is the user's responsibility that the underlying data remains valid for the lifetime of the image view. Similar to iterators and ranges, constness of views does not extend to constness of pixels. A const image_view does not allow changing its location in memory (resizing, moving) but does not prevent one from changing the pixels. The latter requires an image view whose value_type is const. Images have interfaces consistent with STL 1D random access containers, so they can be used directly in STL algorithms like: std::fill(img.begin(), img.end(), red_pixel); In addition, horizontal, vertical and 2D random access iterators are provided. Note also that image_view does not require that its element type be a pixel. It could be instantiated with a locator whose value_type models only Regular. In this case the image view models the weaker RandomAccess2DImageViewConcept, and does not model PixelBasedConcept. Many generic algorithms don't require the elements to be pixels. 1D navigation size_type  size () const iterator  begin () const iterator  end () const reverse_iterator  rbegin () const reverse_iterator  rend () const reference  operator[] (difference_type i) const iterator  at (difference_type i) const iterator  at (const point_t &p) const iterator  at (x_coord_t x, y_coord_t y) const 2-D navigation reference  operator() (const point_t &p) const reference  operator() (x_coord_t x, y_coord_t y) const template<std::size_t D> axis< D >::iterator  axis_iterator (const point_t &p) const xy_locator  xy_at (x_coord_t x, y_coord_t y) const locator  xy_at (const point_t &p) const X navigation x_iterator  x_at (x_coord_t x, y_coord_t y) const x_iterator  x_at (const point_t &p) const x_iterator  row_begin (y_coord_t y) const x_iterator  row_end (y_coord_t y) const Y navigation y_iterator  y_at (x_coord_t x, y_coord_t y) const y_iterator  y_at (const point_t &p) const y_iterator  col_begin (x_coord_t x) const y_iterator  col_end (x_coord_t x) const Public Types typedef Loc::value_type  value_type typedef Loc::reference  reference typedef Loc::coord_t  coord_t typedef coord_t  difference_type typedef Loc::point_t  point_t typedef Loc  locator typedef image_view< typename Loc::const_t >  const_t typedef iterator_from_2d< Loc >  iterator typedef std::reverse_iterator< iterator >  reverse_iterator typedef std::size_t  size_type typedef locator  xy_locator typedef xy_locator::x_iterator  x_iterator typedef xy_locator::y_iterator  y_iterator typedef xy_locator::x_coord_t  x_coord_t typedef xy_locator::y_coord_t  y_coord_t Public Member Functions template<typename View>   image_view (const View &iv) template<typename L2>   image_view (const point_t &sz, const L2 &loc) template<typename L2>   image_view (coord_t width, coord_t height, const L2 &loc) template<typename View> image_view &  operator= (const View &iv) image_view &  operator= (const image_view &iv) template<typename View> bool  operator== (const View &v) const template<typename View> bool  operator!= (const View &v) const const point_t &  dimensions () const const locator &  pixels () const x_coord_t  width () const y_coord_t  height () const std::size_t  num_channels () const bool  is_1d_traversable () const Static Public Attributes static const std::size_t  num_dimensions = 2 Friends class  image_view template<typename L2> void  swap (image_view< L2 > &x, image_view< L2 > &y) The documentation for this class was generated from the following file: image_view.hpp

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