ClusterIso.h File Reference

#include <fun4all/SubsysReco.h>
#include <CLHEP/Vector/ThreeVector.h>
#include <cmath>
#include <string>

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Classes
class	ClusterIso

Functions
float	deltaR (float eta1, float eta2, float phi1, float phi2)

Function Documentation

float deltaR ( float  eta1, float  eta2, float  phi1, float  phi2  )

inline

Function to find delta R between 2 objects

Takes the eta and phi of each object and returns the difference of the etas and phis added in quadrature. Used to find towers inside a cone of delta R around a cluster.

Definition at line 59 of file ClusterIso.h.

View newest version in sPHENIX GitHub at line 59 of file ClusterIso.h

References M_PI.

Referenced by G4eLowEnergyLoss::AlongStepDoIt(), Acts::ImpactPointEstimator< input_track_t, propagator_t, propagator_options_t >::calculate3dDistance(), CMDistortionAnalysis(), CMDistortionAnalysisCart(), CMDistortionAnalysisPhiR(), CMDistortionReco(), CMDistortionRecoCart(), CMDistortionRecoPhiR(), Acts::Seedfinder< external_spacepoint_t >::createSeedsForGroup(), G4PolyconeSide::DistanceAway(), G4CutTubs::DistanceToOut(), G4Tubs::DistanceToOut(), G4ReplicaNavigation::DistanceToOutRad(), Acts::ImpactPointEstimator< input_track_t, propagator_t, propagator_options_t >::estimate3DImpactParameters(), export_G4ThreeVector(), Acts::SeedFilter< external_spacepoint_t >::filterSeeds_2SpFixed(), FW::Generic::modulePositionsDisc(), SubtractTowersCS::process_event(), and ClusterIso::process_event().

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