DGtal::functors::SCellToArrow< KSpace > Class Template Reference

Aim: transforms a signed cell into an arrow, ie. a pair point-vector. More...

#include <DGtal/topology/SCellsFunctors.h>

Public Types
typedef KSpace::Point	Point
typedef KSpace::Vector	Vector
typedef std::pair< Point, Vector >	Output
typedef KSpace::SCell	Input

Public Member Functions
	SCellToArrow ()
	SCellToArrow (ConstAlias< KSpace > aK)
	SCellToArrow (const SCellToArrow &other)
SCellToArrow &	operator= (const SCellToArrow &other)
Output	operator() (const Input &s) const

Private Attributes
const KSpace *	myK

Detailed Description

template<typename KSpace>
class DGtal::functors::SCellToArrow< KSpace >

Aim: transforms a signed cell into an arrow, ie. a pair point-vector.

Description of template class 'SCellToArrow'

Template Parameters

KSpace

the Khalimsky space

See also

SCellToPoint ConstIteratorAdapter KhalimskySpaceND PointVector

Definition at line 240 of file SCellsFunctors.h.

Member Typedef Documentation

Input

template<typename KSpace >

typedef KSpace::SCell DGtal::functors::SCellToArrow< KSpace >::Input

Definition at line 248 of file SCellsFunctors.h.

Output

template<typename KSpace >

typedef std::pair<Point,Vector> DGtal::functors::SCellToArrow< KSpace >::Output

Definition at line 247 of file SCellsFunctors.h.

Point

template<typename KSpace >

typedef KSpace::Point DGtal::functors::SCellToArrow< KSpace >::Point

Definition at line 245 of file SCellsFunctors.h.

Vector

template<typename KSpace >

typedef KSpace::Vector DGtal::functors::SCellToArrow< KSpace >::Vector

Definition at line 246 of file SCellsFunctors.h.

Constructor & Destructor Documentation

SCellToArrow() [1/3]

template<typename KSpace >

DGtal::functors::SCellToArrow< KSpace >::SCellToArrow ( )

inline

Default constructor.

Definition at line 261 of file SCellsFunctors.h.

: myK(NULL) { }

SCellToArrow() [2/3]

template<typename KSpace >

DGtal::functors::SCellToArrow< KSpace >::SCellToArrow ( ConstAlias< KSpace > aK )

inline

Constructor.

Parameters

aK	a Khalimsky space

Definition at line 266 of file SCellsFunctors.h.

: myK(&aK) { }

SCellToArrow() [3/3]

template<typename KSpace >

DGtal::functors::SCellToArrow< KSpace >::SCellToArrow ( const SCellToArrow< KSpace > & other )

inline

Copy constructor.

Parameters

other

any SCellToArrow modifier

Definition at line 272 of file SCellsFunctors.h.

    : myK(other.myK) { }

Member Function Documentation

operator()()

template<typename KSpace >

Output DGtal::functors::SCellToArrow< KSpace >::operator() ( const Input & s ) const

inline

Get an arrow, ie a pair point-vector with integer coordinates from a scell in khalimsky coordinates

Parameters

s

a scell

Returns

the corresponding point.

Definition at line 295 of file SCellsFunctors.h.

    {
      ASSERT( myK ); 
      //starting point of the arrow
      Input pointel( myK->sIndirectIncident( s, *myK->sDirs( s ) ) );
      Point p( myK->sCoords( pointel ) );   //integer coordinates
      //displacement vector
      Vector v( myK->sKCoords( s ) - myK->sKCoords( pointel ) );
      return Output(p,v);
    }

References DGtal::functors::SCellToArrow< KSpace >::myK, DGtal::KhalimskySpaceND< dim, TInteger >::sCoords(), DGtal::KhalimskySpaceND< dim, TInteger >::sDirs(), DGtal::KhalimskySpaceND< dim, TInteger >::sIndirectIncident(), and DGtal::KhalimskySpaceND< dim, TInteger >::sKCoords().

operator=()

template<typename KSpace >

SCellToArrow & DGtal::functors::SCellToArrow< KSpace >::operator= ( const SCellToArrow< KSpace > & other )

inline

Assignment.

Parameters

other

the object to copy.

Returns

a reference on 'this'.

Definition at line 280 of file SCellsFunctors.h.

    {
      if (this != &other)
        {
          myK = other.myK;
        }
      return *this;
    }

References DGtal::functors::SCellToArrow< KSpace >::myK.

Field Documentation

myK

template<typename KSpace >

const KSpace* DGtal::functors::SCellToArrow< KSpace >::myK

private

Aliasing pointer on the Khalimsky space.

Definition at line 254 of file SCellsFunctors.h.

Referenced by DGtal::functors::SCellToArrow< KSpace >::operator()(), and DGtal::functors::SCellToArrow< KSpace >::operator=().

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

• SCellsFunctors.h