eflowCellPosition Class Reference

This class stores the eta,phi and layer of the calorimeter cell and defines a "<" operator which can be used to order the eflowCellPosition based on eta,phi and layer. More...

#include <eflowCellPosition.h>

Collaboration diagram for eflowCellPosition:

Public Member Functions
	eflowCellPosition (const eflowAbstractCellList *deposit, eflowCaloENUM layer, double dR)
	eflowCellPosition (const eflowAbstractCellList *deposit, const CaloCell *cell)
	~eflowCellPosition ()
bool	operator< (const eflowCellPosition &rhs) const
double	dR () const

Private Attributes
eflowCaloENUM	m_layer
double	m_eta
double	m_phi
const eflowAbstractCellList *	m_deposit

Detailed Description

This class stores the eta,phi and layer of the calorimeter cell and defines a "<" operator which can be used to order the eflowCellPosition based on eta,phi and layer.

The < operator makes use of a stored pointer to the eflowAbstractCellList that the eflowCellPosition is in, in order to use eflowCellList::DR2 inside the < operator.

So conceptually we can consider that a track has some list of associated calorimeter cells in the eflowCellList, where the information that we need for each cell is stored in the eflowCellPosition. A map is kept to link the eflowCellPosition back to the actual CaloCell.

Definition at line 35 of file eflowCellPosition.h.

Constructor & Destructor Documentation

eflowCellPosition() [1/2]

eflowCellPosition::eflowCellPosition	(	const eflowAbstractCellList *	deposit,
		eflowCaloENUM	layer,
		double	dR
	)

Definition at line 27 of file eflowCellPosition.cxx.

                                                                                                         :
   m_layer(layer),m_deposit(deposit) {
  m_eta = deposit->etaFF(layer) + dR;
  m_phi = deposit->phiFF(layer);
}

eflowCellPosition() [2/2]

eflowCellPosition::eflowCellPosition	(	const eflowAbstractCellList *	deposit,
		const CaloCell *	cell
	)

Definition at line 33 of file eflowCellPosition.cxx.

                                                                                               :
  m_eta(cell->eta()), m_phi(cell->phi()), m_deposit(deposit) {
  const CaloDetDescrElement* caloDDE = cell->caloDDE();
 
  if (caloDDE) {
    CaloCell_ID::CaloSample caloSampl = caloDDE->getSampling();
    m_layer = eflowCalo::translateSampl(caloSampl);
  } else {
    m_layer = eflowCalo::Unknown;
  }
}

~eflowCellPosition()

eflowCellPosition::~eflowCellPosition ( )

inline

Definition at line 43 of file eflowCellPosition.h.

{}

Member Function Documentation

dR()

double eflowCellPosition::dR

(

)

const

Definition at line 64 of file eflowCellPosition.cxx.

                                   {
  return m_deposit->dR(m_eta, m_phi, m_layer);
}

operator<()

bool eflowCellPosition::operator<

(

const eflowCellPosition &

rhs

)

const

Definition at line 45 of file eflowCellPosition.cxx.

                                                                    {
  if (m_layer != rhs.m_layer) {
    return m_layer < rhs.m_layer;
  } else {
    double r1 = m_deposit->dR2(m_eta, m_phi, m_layer);
    double r2 = m_deposit->dR2(rhs.m_eta, rhs.m_phi, m_layer);
 
    if (fabs(r1 - r2) < 1.0e-12) {
      if (fabs(m_eta - rhs.m_eta) < 1.0e-6) {
    return  CxxUtils::fpcompare::greater(xAOD::P4Helpers::deltaPhi(m_phi,rhs.m_phi),0);
      } else {
        return (m_eta < rhs.m_eta);
      }
    } else {
      return (r1 < r2);
    }
  }
}

Member Data Documentation

m_deposit

const eflowAbstractCellList* eflowCellPosition::m_deposit

private

Definition at line 52 of file eflowCellPosition.h.

m_eta

double eflowCellPosition::m_eta

private

Definition at line 51 of file eflowCellPosition.h.

m_layer

eflowCaloENUM eflowCellPosition::m_layer

private

Definition at line 50 of file eflowCellPosition.h.

m_phi

double eflowCellPosition::m_phi

private

Definition at line 51 of file eflowCellPosition.h.

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

• eflowCellPosition.h
• eflowCellPosition.cxx