An eta-phi map providing a relatively fast way of retrieving points at a given distance of a point in the plan (cylinder in this case). More...

#include <TiledEtaPhiMap.h>

Collaboration diagram for JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >:

Public Types
typedef Tile< POINT, DIST2 >	tile_t

Public Member Functions
	TiledEtaPhiMap ()
virtual	~TiledEtaPhiMap ()
void	init (double rmax)
void	insert (POINT &p)
std::vector< POINT >	pointsInDr (POINT &p, double r) const
	retrieve all points within deltaR of p. WARNING !! wrong results if r>rmax !
virtual void	clear ()
virtual void	reset ()
unsigned int	size () const
void	setEtaRange (double r)

Protected Member Functions
size_t	tileIndex (POINT &p) const
	index of the tile containing p
size_t	tileIndex_i (int ix, int iy) const
	retrieve the tile index from its integer coordinates.

Protected Attributes
double	m_etarange {}
double	m_halfetarange {}
double	m_rmax {}
size_t	m_ndivX =1
size_t	m_ndivY =1
double	m_sizeX {}
double	m_sizeY {}
unsigned int	m_size {}
std::vector< tile_t >	m_tiles

Detailed Description

template<class POINT, class DIST2 = typename POINT::DR2>
class JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >

An eta-phi map providing a relatively fast way of retrieving points at a given distance of a point in the plan (cylinder in this case).

It works by simply dividing the plan in rectangular tiles of identical size and restricting the search only in a tile and its neighbours. IMPORTANT : the search is accurate only up to distance rmax where rmax is given to the init() function.

Definition at line 85 of file TiledEtaPhiMap.h.

Member Typedef Documentation

◆ tile_t

template<class POINT, class DIST2 = typename POINT::DR2>

typedef Tile<POINT, DIST2> JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::tile_t

Definition at line 87 of file TiledEtaPhiMap.h.

Constructor & Destructor Documentation

◆ TiledEtaPhiMap()

template<class POINT, class DIST2 = typename POINT::DR2>

JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::TiledEtaPhiMap ( )

inline

Definition at line 90 of file TiledEtaPhiMap.h.

90: m_etarange(10.0), m_halfetarange(5.), m_size(0) {};

JetTiledMap::TiledEtaPhiMap::m_etarange

double m_etarange

Definition TiledEtaPhiMap.h:109

JetTiledMap::TiledEtaPhiMap::m_halfetarange

double m_halfetarange

Definition TiledEtaPhiMap.h:110

JetTiledMap::TiledEtaPhiMap::m_size

unsigned int m_size

Definition TiledEtaPhiMap.h:115

◆ ~TiledEtaPhiMap()

template<class POINT, class DIST2 = typename POINT::DR2>

virtual JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::~TiledEtaPhiMap ( )

inlinevirtual

Definition at line 91 of file TiledEtaPhiMap.h.

91{}

Member Function Documentation

◆ clear()

template<class POINT, class DIST2 = typename POINT::DR2>

virtual void JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::clear ( )

virtual

◆ init()

template<class POINT, class DIST2 = typename POINT::DR2>

void JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::init ( double rmax )

◆ insert()

template<class POINT, class DIST2 = typename POINT::DR2>

void JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::insert ( POINT & p )

◆ pointsInDr()

template<class POINT, class DIST2 = typename POINT::DR2>

std::vector< POINT > JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::pointsInDr	(	POINT &	p,
		double	r ) const

retrieve all points within deltaR of p. WARNING !! wrong results if r>rmax !

◆ reset()

template<class POINT, class DIST2 = typename POINT::DR2>

virtual void JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::reset ( )

inlinevirtual

Definition at line 101 of file TiledEtaPhiMap.h.

101{m_tiles.clear();m_size=0;}

JetTiledMap::TiledEtaPhiMap::m_tiles

std::vector< tile_t > m_tiles

Definition TiledEtaPhiMap.h:133

◆ setEtaRange()

template<class POINT, class DIST2 = typename POINT::DR2>

void JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::setEtaRange ( double r )

inline

Definition at line 105 of file TiledEtaPhiMap.h.

105{m_etarange=r; m_halfetarange = r/2;}

JetTiledMap::TiledEtaPhiMap

An eta-phi map providing a relatively fast way of retrieving points at a given distance of a point in...

Definition TiledEtaPhiMap.h:85

◆ size()

template<class POINT, class DIST2 = typename POINT::DR2>

unsigned int JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::size ( ) const

inline

Definition at line 103 of file TiledEtaPhiMap.h.

103{return m_size;} ;

◆ tileIndex()

template<class POINT, class DIST2 = typename POINT::DR2>

size_t JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::tileIndex ( POINT & p ) const

inlineprotected

index of the tile containing p

Definition at line 119 of file TiledEtaPhiMap.h.

                                     {
 
      int indx = int( (p.x()+m_halfetarange)/m_sizeX) ;
      if(indx<0) indx=0;
      if(indx>=static_cast<int>(m_ndivX)) indx=static_cast<int>(m_ndivX)-1;
      int indy = int((M_PI-p.y())/m_sizeY);      
      if(indy>=static_cast<int>(m_ndivY)) indy=static_cast<int>(m_ndivY)-1;
      
      return tileIndex_i(indx,indy);
    }

◆ tileIndex_i()

template<class POINT, class DIST2 = typename POINT::DR2>

size_t JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::tileIndex_i	(	int	ix,
		int	iy ) const

inlineprotected

retrieve the tile index from its integer coordinates.

Definition at line 131 of file TiledEtaPhiMap.h.

131{return ix*m_ndivY + iy;};

Member Data Documentation

◆ m_etarange

template<class POINT, class DIST2 = typename POINT::DR2>

double JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_etarange {}

protected

Definition at line 109 of file TiledEtaPhiMap.h.

109{} ;

◆ m_halfetarange

template<class POINT, class DIST2 = typename POINT::DR2>

double JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_halfetarange {}

protected

Definition at line 110 of file TiledEtaPhiMap.h.

110{};

◆ m_ndivX

template<class POINT, class DIST2 = typename POINT::DR2>

size_t JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_ndivX =1

protected

Definition at line 112 of file TiledEtaPhiMap.h.

◆ m_ndivY

template<class POINT, class DIST2 = typename POINT::DR2>

size_t JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_ndivY =1

protected

Definition at line 112 of file TiledEtaPhiMap.h.

◆ m_rmax

template<class POINT, class DIST2 = typename POINT::DR2>

double JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_rmax {}

protected

Definition at line 111 of file TiledEtaPhiMap.h.

111{};

◆ m_size

template<class POINT, class DIST2 = typename POINT::DR2>

unsigned int JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_size {}

protected

Definition at line 115 of file TiledEtaPhiMap.h.

115{};

◆ m_sizeX

template<class POINT, class DIST2 = typename POINT::DR2>

double JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_sizeX {}

protected

Definition at line 113 of file TiledEtaPhiMap.h.

113{},m_sizeY{};

◆ m_sizeY

template<class POINT, class DIST2 = typename POINT::DR2>

double JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_sizeY {}

protected

Definition at line 113 of file TiledEtaPhiMap.h.

113{},m_sizeY{};

◆ m_tiles

template<class POINT, class DIST2 = typename POINT::DR2>

std::vector<tile_t> JetTiledMap::TiledEtaPhiMap< POINT, DIST2 >::m_tiles

protected

Definition at line 133 of file TiledEtaPhiMap.h.

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

TiledEtaPhiMap.h

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ tile_t

Constructor & Destructor Documentation

◆ TiledEtaPhiMap()

◆ ~TiledEtaPhiMap()

Member Function Documentation

◆ clear()

◆ init()

◆ insert()

◆ pointsInDr()

◆ reset()

◆ setEtaRange()

◆ size()

◆ tileIndex()

◆ tileIndex_i()

Member Data Documentation

◆ m_etarange

◆ m_halfetarange

◆ m_ndivX

◆ m_ndivY

◆ m_rmax

◆ m_size

◆ m_sizeX

◆ m_sizeY

◆ m_tiles