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

Aim: transforms a 2d signed cell, basically a linel, into a code (0,1,2 or 3),. More...

#include <DGtal/topology/SCellsFunctors.h>

Public Types
typedef KSpace::Point	Point
typedef KSpace::Vector	Vector
typedef char	Output
typedef KSpace::SCell	Input

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

Private Member Functions
	BOOST_STATIC_ASSERT (KSpace::dimension==2)

Private Attributes
const KSpace *	myK

Detailed Description

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

Aim: transforms a 2d signed cell, basically a linel, into a code (0,1,2 or 3),.

Description of template class 'SCellToCode'

Template Parameters

KSpace

the 2d Khalimsky space

See also

ConstIteratorAdapter KhalimskySpaceND

Definition at line 461 of file SCellsFunctors.h.

Member Typedef Documentation

Input

template<typename KSpace >

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

Definition at line 472 of file SCellsFunctors.h.

Output

template<typename KSpace >

typedef char DGtal::functors::SCellToCode< KSpace >::Output

Definition at line 470 of file SCellsFunctors.h.

Point

template<typename KSpace >

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

Definition at line 468 of file SCellsFunctors.h.

Vector

template<typename KSpace >

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

Definition at line 469 of file SCellsFunctors.h.

Constructor & Destructor Documentation

SCellToCode() [1/3]

template<typename KSpace >

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

inline

Default constructor.

Definition at line 485 of file SCellsFunctors.h.

: myK(NULL) { }

SCellToCode() [2/3]

template<typename KSpace >

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

inline

Constructor.

Parameters

aK	a Khalimsky space

Definition at line 490 of file SCellsFunctors.h.

: myK(&aK) { }

SCellToCode() [3/3]

template<typename KSpace >

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

inline

Copy constructor.

Parameters

other

any SCellToCode modifier

Definition at line 496 of file SCellsFunctors.h.

    : myK(other.myK) { }

Member Function Documentation

BOOST_STATIC_ASSERT()

template<typename KSpace >

DGtal::functors::SCellToCode< KSpace >::BOOST_STATIC_ASSERT ( KSpace::dimension  = =2 )

private

operator()()

template<typename KSpace >

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

inline

Return a code from a linel

Parameters

s

a linel

Returns

the corresponding code

Definition at line 518 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 ) );
      if (v == Vector(1,0)) return '0'; 
      else if (v == Vector(0,1)) return '1';
      else if (v == Vector(-1,0)) return '2';
      else if (v == Vector(0,-1)) return '3';
      else return 'e'; //e for error!
    }

References DGtal::functors::SCellToCode< 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 >

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

inline

Assignment.

Parameters

other

the object to copy.

Returns

a reference on 'this'.

Definition at line 504 of file SCellsFunctors.h.

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

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

Field Documentation

myK

template<typename KSpace >

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

private

Aliasing pointer on the Khalimsky space.

Definition at line 478 of file SCellsFunctors.h.

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

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

• SCellsFunctors.h