Browsing in a certain direction. More...

#include <directional.hh>

Inheritance diagram for mln::canvas::browsing::directional_t:

Public Types
typedef Browsing< void >	category
typedef directional_t	exact_t
Public Member Functions
void	final ()
void	init ()
template<typename F >
void	operator() (F &f) const

Detailed Description

Browsing in a certain direction.

This canvas browse all the point of an image 'input' of type 'I' and of dimension 'dim' in the direction 'dir'.

The functor should provide (In addition to 'input', 'I', 'dim' and 'dir') three methods :

init() : Will be called at the beginning.
next() : Will be called at each point 'p' (also provided by the fonctor).
final(): Will be called at the end.

F shall features :
{
--- as types:
I;
--- as attributes:
dim;
dir; // and test dir < dim
input;
p;
--- as methods:
void init();
void next();
void final();
}