Aim: A model of CDigitalSurfaceContainer which defines the digital surface as connected surfels. The shape is determined by a predicate telling whether a given surfel belongs or not to the shape boundary. Compute once the boundary of the surface with a tracking. More...

#include <DGtal/topology/ExplicitDigitalSurface.h>

Data Structures
class	Tracker

Public Types
typedef ExplicitDigitalSurface< TKSpace, TSurfelPredicate >	Self

typedef TKSpace	KSpace
	Model of cellular grid space.

typedef KSpace::SCell	Surfel
	Type for surfels.

typedef KSpace::Size	Size
	Type for sizes (unsigned integral type).

typedef TSurfelPredicate	SurfelPredicate

typedef std::vector< Surfel >	SurfelStorage

typedef SurfelStorage::const_iterator	SurfelConstIterator

typedef KSpace::Space	Space

typedef KSpace::Point	Point

typedef Tracker	DigitalSurfaceTracker

typedef SurfelAdjacency< KSpace::dimension >	Adjacency

typedef KSpace::Cell	Cell

typedef KSpace::SCell	SCell

typedef KSpace::CellSet	CellSet

typedef KSpace::SCellSet	SCellSet

Public Member Functions
	BOOST_CONCEPT_ASSERT ((concepts::CSurfelPredicate< SurfelPredicate >))

	~ExplicitDigitalSurface ()

	ExplicitDigitalSurface (const ExplicitDigitalSurface &other)

	ExplicitDigitalSurface (ConstAlias< KSpace > aKSpace, const SurfelPredicate &aSP, const Adjacency &adj, const Surfel &s, bool closed=false)

const Adjacency &	surfelAdjacency () const
	accessor to surfel adjacency.

Adjacency &	surfelAdjacency ()
	mutator to surfel adjacency.

const SurfelPredicate &	surfelPredicate () const
	accessor to point predicate.

const KSpace &	space () const

bool	isInside (const Surfel &s) const

SurfelConstIterator	begin () const

SurfelConstIterator	end () const

Size	nbSurfels () const

bool	empty () const

DigitalSurfaceTracker *	newTracker (const Surfel &s) const

Connectedness	connectedness () const

void	selfDisplay (std::ostream &out) const

bool	isValid () const

Protected Member Functions
void	computeSurfels (const Surfel &p, bool closed)

Private Member Functions
ExplicitDigitalSurface &	operator= (const ExplicitDigitalSurface &other)

Private Attributes
const KSpace &	myKSpace
	a reference to the cellular space.

const SurfelPredicate &	mySurfelPredicate
	a reference to the surfel predicate defining the shape.

Adjacency	mySurfelAdjacency
	the surfel adjacency used to determine neighbors.

SurfelStorage	mySurfels
	a vector storing all the surfels of the boundary.

Detailed Description

template<typename TKSpace, typename TSurfelPredicate>
class DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >

Aim: A model of CDigitalSurfaceContainer which defines the digital surface as connected surfels. The shape is determined by a predicate telling whether a given surfel belongs or not to the shape boundary. Compute once the boundary of the surface with a tracking.

Description of template class 'ExplicitDigitalSurface'

Note that in the 2D case, this object corresponds to a digital contour made of linels, ordered as a direct orientation sequence. If the contour is open, then begin() returns one extremity while end() is the surfel past the last extremity. If the contour is closed, then begin() is the surfel given at the instantiation of the object.

Template Parameters

TKSpace	a model of CCellularGridSpaceND: the type chosen for the cellular grid space.
TSurfelPredicate	a model of CSurfelPredicate: this functor defines the digital surface as a characteristic function returning true iff the surfel belongs to it.

Examples: topology/frontierAndBoundary.cpp.

Definition at line 81 of file ExplicitDigitalSurface.h.

Member Typedef Documentation

◆ Adjacency

template<typename TKSpace , typename TSurfelPredicate >

typedef SurfelAdjacency<KSpace::dimension> DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Adjacency

Definition at line 187 of file ExplicitDigitalSurface.h.

◆ Cell

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::Cell DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Cell

Definition at line 188 of file ExplicitDigitalSurface.h.

◆ CellSet

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::CellSet DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::CellSet

Definition at line 190 of file ExplicitDigitalSurface.h.

◆ DigitalSurfaceTracker

template<typename TKSpace , typename TSurfelPredicate >

typedef Tracker DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::DigitalSurfaceTracker

Definition at line 183 of file ExplicitDigitalSurface.h.

◆ KSpace

template<typename TKSpace , typename TSurfelPredicate >

typedef TKSpace DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::KSpace

Model of cellular grid space.

Definition at line 167 of file ExplicitDigitalSurface.h.

◆ Point

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::Point DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Point

Definition at line 182 of file ExplicitDigitalSurface.h.

◆ SCell

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::SCell DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::SCell

Definition at line 189 of file ExplicitDigitalSurface.h.

◆ SCellSet

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::SCellSet DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::SCellSet

Definition at line 191 of file ExplicitDigitalSurface.h.

◆ Self

template<typename TKSpace , typename TSurfelPredicate >

typedef ExplicitDigitalSurface<TKSpace,TSurfelPredicate> DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Self

Definition at line 165 of file ExplicitDigitalSurface.h.

◆ Size

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::Size DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Size

Type for sizes (unsigned integral type).

Definition at line 171 of file ExplicitDigitalSurface.h.

◆ Space

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::Space DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Space

Definition at line 181 of file ExplicitDigitalSurface.h.

◆ Surfel

template<typename TKSpace , typename TSurfelPredicate >

typedef KSpace::SCell DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::Surfel

Type for surfels.

Definition at line 169 of file ExplicitDigitalSurface.h.

◆ SurfelConstIterator

template<typename TKSpace , typename TSurfelPredicate >

typedef SurfelStorage::const_iterator DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::SurfelConstIterator

Definition at line 180 of file ExplicitDigitalSurface.h.

◆ SurfelPredicate

template<typename TKSpace , typename TSurfelPredicate >

typedef TSurfelPredicate DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::SurfelPredicate

Definition at line 173 of file ExplicitDigitalSurface.h.

◆ SurfelStorage

template<typename TKSpace , typename TSurfelPredicate >

typedef std::vector<Surfel> DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::SurfelStorage

Definition at line 179 of file ExplicitDigitalSurface.h.

Constructor & Destructor Documentation

◆ ~ExplicitDigitalSurface()

template<typename TKSpace , typename TSurfelPredicate >

DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::~ExplicitDigitalSurface ( )

Destructor.

◆ ExplicitDigitalSurface() [1/2]

template<typename TKSpace , typename TSurfelPredicate >

DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::ExplicitDigitalSurface ( const ExplicitDigitalSurface< TKSpace, TSurfelPredicate > & other )

Copy constructor.

Parameters

other the object to clone.

NB: O(N) computational complexity operation, where N is the number of surfels of the surface. This is due to the fact that the surface is stored explicitly.

◆ ExplicitDigitalSurface() [2/2]

template<typename TKSpace , typename TSurfelPredicate >

DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::ExplicitDigitalSurface	(	ConstAlias< KSpace >	aKSpace,
		const SurfelPredicate &	aSP,
		const Adjacency &	adj,
		const Surfel &	s,
		bool	closed = false )

Constructor from digital set.

Parameters

aKSpace	a cellular grid space (referenced).
aSP	a surfel predicate defining the shape (referenced).
adj	the surfel adjacency (for instance Adjacency( true ) is interior to exterior adjacency ).
s	any surfel of aKSpace such that aSP is true in the interior and false in the exterior.
closed	when 'true', the surface is known to be closed, hence faster extraction can be performed, default is 'false'.

NB: O(N) computational complexity operation, where N is the number of surfels of the surface. This is due to the fact that, at construction, the surface is extracted and stored.

See also: computeSurfels

Member Function Documentation

◆ begin()

template<typename TKSpace , typename TSurfelPredicate >

SurfelConstIterator DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::begin ( ) const

Returns: an iterator pointing on the first surfel of the digital surface (unspecified order).

◆ BOOST_CONCEPT_ASSERT()

template<typename TKSpace , typename TSurfelPredicate >

DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::BOOST_CONCEPT_ASSERT ( (concepts::CSurfelPredicate< SurfelPredicate >) )

◆ computeSurfels()

template<typename TKSpace , typename TSurfelPredicate >

void DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::computeSurfels	(	const Surfel &	p,
		bool	closed )

protected

Recomputes the set of boundary surfels from the point predicate and some initial surfel.

Parameters

p	any surfel of the surface
closed	when 'true', the surface is known to be closed, hence faster extraction can be performed.

◆ connectedness()

template<typename TKSpace , typename TSurfelPredicate >

Connectedness DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::connectedness ( ) const

Returns: the connectedness of this surface. By construction CONNECTED.

◆ empty()

template<typename TKSpace , typename TSurfelPredicate >

bool DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::empty ( ) const

Returns: 'true' is the surface has no surfels, 'false' otherwise. NB: O(1) operation.

◆ end()

template<typename TKSpace , typename TSurfelPredicate >

SurfelConstIterator DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::end ( ) const

Returns: an iterator after the last surfel of the digital surface (unspecified order).

◆ isInside()

template<typename TKSpace , typename TSurfelPredicate >

bool DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::isInside ( const Surfel & s ) const

Parameters

s	any surfel of the space.

Returns: 'true' if s belongs to this digital surface.

◆ isValid()

template<typename TKSpace , typename TSurfelPredicate >

bool DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::isValid ( ) const

Checks the validity/consistency of the object.

Returns: 'true' if the object is valid, 'false' otherwise.

◆ nbSurfels()

template<typename TKSpace , typename TSurfelPredicate >

Size DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::nbSurfels ( ) const

Returns: the number of surfels of this digital surface. NB: O(1)

◆ newTracker()

template<typename TKSpace , typename TSurfelPredicate >

DigitalSurfaceTracker * DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::newTracker ( const Surfel & s ) const

Parameters

s	any surfel of the space.

Precondition: 'isInside( s )'

Returns: a dyn. alloc. pointer on a tracker positionned at s.

◆ operator=()

template<typename TKSpace , typename TSurfelPredicate >

ExplicitDigitalSurface & DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::operator= ( const ExplicitDigitalSurface< TKSpace, TSurfelPredicate > & other )

private

Assignment.

Parameters

other the object to copy.

Returns: a reference on 'this'. Forbidden by default.

◆ selfDisplay()

template<typename TKSpace , typename TSurfelPredicate >

void DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::selfDisplay ( std::ostream & out ) const

Writes/Displays the object on an output stream.

Parameters

out	the output stream where the object is written.

◆ space()

template<typename TKSpace , typename TSurfelPredicate >

const KSpace & DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::space ( ) const

Returns: the cellular space in which lives the surface.

◆ surfelAdjacency() [1/2]

template<typename TKSpace , typename TSurfelPredicate >

Adjacency & DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::surfelAdjacency ( )

mutator to surfel adjacency.

◆ surfelAdjacency() [2/2]

template<typename TKSpace , typename TSurfelPredicate >

const Adjacency & DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::surfelAdjacency ( ) const

accessor to surfel adjacency.

◆ surfelPredicate()

template<typename TKSpace , typename TSurfelPredicate >

const SurfelPredicate & DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::surfelPredicate ( ) const

accessor to point predicate.

Field Documentation

◆ myKSpace

template<typename TKSpace , typename TSurfelPredicate >

const KSpace& DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::myKSpace

private

a reference to the cellular space.

Definition at line 302 of file ExplicitDigitalSurface.h.

◆ mySurfelAdjacency

template<typename TKSpace , typename TSurfelPredicate >

Adjacency DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::mySurfelAdjacency

private

the surfel adjacency used to determine neighbors.

Definition at line 306 of file ExplicitDigitalSurface.h.

◆ mySurfelPredicate

template<typename TKSpace , typename TSurfelPredicate >

const SurfelPredicate& DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::mySurfelPredicate

private

a reference to the surfel predicate defining the shape.

Definition at line 304 of file ExplicitDigitalSurface.h.

◆ mySurfels

template<typename TKSpace , typename TSurfelPredicate >

SurfelStorage DGtal::ExplicitDigitalSurface< TKSpace, TSurfelPredicate >::mySurfels

private

a vector storing all the surfels of the boundary.

Definition at line 308 of file ExplicitDigitalSurface.h.

The documentation for this class was generated from the following file:

ExplicitDigitalSurface.h

Data Structures

Public Types

Public Member Functions

Protected Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Adjacency

◆ Cell

◆ CellSet

◆ DigitalSurfaceTracker

◆ KSpace

◆ Point

◆ SCell

◆ SCellSet

◆ Self

◆ Size

◆ Space

◆ Surfel

◆ SurfelConstIterator

◆ SurfelPredicate

◆ SurfelStorage

Constructor & Destructor Documentation

◆ ~ExplicitDigitalSurface()

◆ ExplicitDigitalSurface() [1/2]

◆ ExplicitDigitalSurface() [2/2]

Member Function Documentation

◆ begin()

◆ BOOST_CONCEPT_ASSERT()

◆ computeSurfels()

◆ connectedness()

◆ empty()

◆ end()

◆ isInside()

◆ isValid()

◆ nbSurfels()

◆ newTracker()

◆ operator=()

◆ selfDisplay()

◆ space()

◆ surfelAdjacency() [1/2]

◆ surfelAdjacency() [2/2]

◆ surfelPredicate()

Field Documentation

◆ myKSpace

◆ mySurfelAdjacency

◆ mySurfelPredicate

◆ mySurfels