mln::win::octagon2d Struct Reference [2D windows]

Octagon window defined on the 2D square grid. More...

#include <octagon2d.hh>

Inheritance diagram for mln::win::octagon2d:

List of all members.

Public Types
typedef dpsites_fwd_piter < octagon2d >	bkd_qiter
	Backward site iterator associated type.
typedef Window< void >	category
typedef dpoint2d	dpsite
	DPsite associated type.
typedef octagon2d	exact_t
typedef dpsites_fwd_piter < octagon2d >	fwd_qiter
	Forward site iterator associated type.
typedef dpoint2d::psite	psite
	Psite associated type.
typedef fwd_qiter	qiter
	Site iterator associated type.
typedef window< dpoint2d >	regular
	Regular window associated type.
typedef dpoint2d::site	site
	Site associated type.
Public Member Functions
unsigned	area () const
	Give the area.
unsigned	delta () const
	Give the maximum coordinate gap between the window center and a window point.
unsigned	delta_ () const
	Give the maximum coordinate gap between the window center and a window point.
const dpoint2d &	dp (unsigned i) const
	Give the i-th delta-point.
bool	has (const dpoint2d &dp) const
	Test if the delta-point dp belongs to the window.
bool	is_centered () const
	Test if the window is centered; return true.
bool	is_empty () const
	Test if the window is empty (null size; no delta-point).
bool	is_neighbable_ () const
	Test if this window can be a neighborhood.
bool	is_symmetric () const
	Test if the window is symmetric; return true.
bool	is_valid () const
	return true by default.
unsigned	length () const
	Give the octagon length, that is, its width.
	octagon2d (unsigned length)
	Constructor.
void	print (std::ostream &ostr) const
	Print into ostr the window definition.
void	print_ (std::ostream &ostr) const
unsigned	size () const
	Give the number of delta-points.
const std::vector< dpoint2d > &	std_vector () const
	Give the vector of delta-points.
void	sym ()
	Apply a central symmetry to the target window; a no-op here.
const std::vector< dpoint2d > &	vect () const
	Give the vector of delta-points.
Protected Member Functions
void	insert (const dpoint2d &d)
Protected Attributes
unsigned	length_
mln::window< dpoint2d >	win_

---

Detailed Description

Octagon window defined on the 2D square grid.

An octagon2d is centered and symmetric.

The length L of the octagon is such as L = 6 * l + 1 where l >= 0.

For instance:

     *     o o o
     *   o o o o o
     * o o o o o o o
     * o o o x o o o
     * o o o o o o o
     *   o o o o o
     *     o o o
     * 

is defined with L = 7 (l = 1).

---

Member Typedef Documentation

typedef dpsites_fwd_piter<octagon2d > mln::internal::classical_window_base< dpoint2d , octagon2d >::bkd_qiter [inherited]

Backward site iterator associated type.

typedef Window<void> mln::Window< octagon2d >::category [inherited]

Reimplemented from mln::Object< octagon2d >.

typedef dpoint2d mln::internal::window_base< dpoint2d , octagon2d >::dpsite [inherited]

DPsite associated type.

typedef octagon2d mln::Object< octagon2d >::exact_t [inherited]

typedef dpsites_fwd_piter<octagon2d > mln::internal::classical_window_base< dpoint2d , octagon2d >::fwd_qiter [inherited]

Forward site iterator associated type.

typedef dpoint2d ::psite mln::internal::window_base< dpoint2d , octagon2d >::psite [inherited]

Psite associated type.

typedef fwd_qiter mln::internal::classical_window_base< dpoint2d , octagon2d >::qiter [inherited]

Site iterator associated type.

typedef window<dpoint2d > mln::internal::classical_window_base< dpoint2d , octagon2d >::regular [inherited]

Regular window associated type.

typedef dpoint2d ::site mln::internal::window_base< dpoint2d , octagon2d >::site [inherited]

Site associated type.

---

Constructor & Destructor Documentation

mln::win::octagon2d::octagon2d

(

unsigned

length

)

[inline]

Constructor.

Parameters:

[in]

length

Length, of the octagon.

Precondition:

length is such as length = 6*x + 1 where x >= 0.

References mln::internal::classical_window_base< dpoint2d, octagon2d >::insert().

---

Member Function Documentation

unsigned mln::win::octagon2d::area

(

)

const [inline]

Give the area.

References length_.

unsigned mln::internal::classical_window_base< dpoint2d , octagon2d >::delta

(

)

const [inherited]

Give the maximum coordinate gap between the window center and a window point.

unsigned mln::win::octagon2d::delta_

(

)

const [inline]

Give the maximum coordinate gap between the window center and a window point.

Reimplemented from mln::internal::classical_window_base< dpoint2d, octagon2d >.

References length_.

const dpoint2d & mln::internal::classical_window_base< dpoint2d , octagon2d >::dp

(

unsigned

i

)

const [inherited]

Give the i-th delta-point.

bool mln::internal::classical_window_base< dpoint2d , octagon2d >::has

(

const dpoint2d &

dp

)

const [inherited]

Test if the delta-point dp belongs to the window.

void mln::internal::classical_window_base< dpoint2d , octagon2d >::insert

(

const dpoint2d &

d

)

[protected, inherited]

Referenced by octagon2d().

bool mln::internal::classical_window_base< dpoint2d , octagon2d >::is_centered

(

)

const [inherited]

Test if the window is centered; return true.

bool mln::internal::classical_window_base< dpoint2d , octagon2d >::is_empty

(

)

const [inherited]

Test if the window is empty (null size; no delta-point).

bool mln::internal::window_base< dpoint2d , octagon2d >::is_neighbable_

(

)

const [inherited]

Test if this window can be a neighborhood.

bool mln::internal::classical_window_base< dpoint2d , octagon2d >::is_symmetric

(

)

const [inherited]

Test if the window is symmetric; return true.

bool mln::internal::window_base< dpoint2d , octagon2d >::is_valid

(

)

const [inherited]

return true by default.

unsigned mln::win::octagon2d::length

(

)

const [inline]

Give the octagon length, that is, its width.

References length_.

void mln::internal::classical_window_base< dpoint2d , octagon2d >::print

(

std::ostream &

ostr

)

const [inherited]

Print into ostr the window definition.

void mln::win::octagon2d::print_

(

std::ostream &

ostr

)

const [inline]

Reimplemented from mln::internal::classical_window_base< dpoint2d, octagon2d >.

References length_.

unsigned mln::internal::classical_window_base< dpoint2d , octagon2d >::size

(

)

const [inherited]

Give the number of delta-points.

const std::vector<dpoint2d >& mln::internal::classical_window_base< dpoint2d , octagon2d >::std_vector

(

)

const [inherited]

Give the vector of delta-points.

void mln::internal::classical_window_base< dpoint2d , octagon2d >::sym

(

)

[inherited]

Apply a central symmetry to the target window; a no-op here.

const std::vector<dpoint2d >& mln::internal::classical_window_base< dpoint2d , octagon2d >::vect

(

)

const [inherited]

Give the vector of delta-points.

---

Member Data Documentation

unsigned mln::win::octagon2d::length_ [protected]

Referenced by area(), delta_(), length(), and print_().

mln::window<dpoint2d > mln::internal::classical_window_base< dpoint2d , octagon2d >::win_ [protected, inherited]