FastJet 3.0.4
Public Member Functions
fastjet::ClusterSequenceArea Class Reference

General class for user to obtain ClusterSequence with additional area information. More...

#include <fastjet/ClusterSequenceArea.hh>

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Public Member Functions

template<class L >
 ClusterSequenceArea (const std::vector< L > &pseudojets, const JetDefinition &jet_def_in, const AreaDefinition &area_def_in)
 main constructor
template<class L >
 ClusterSequenceArea (const std::vector< L > &pseudojets, const JetDefinition &jet_def_in, const GhostedAreaSpec &ghost_spec)
 constructor with a GhostedAreaSpec
template<class L >
 ClusterSequenceArea (const std::vector< L > &pseudojets, const JetDefinition &jet_def_in, const VoronoiAreaSpec &voronoi_spec)
 constructor with a VoronoiAreaSpec
const AreaDefinitionarea_def () const
 return a reference to the area definition
virtual double area (const PseudoJet &jet) const
 return the area associated with the given jet
virtual double area_error (const PseudoJet &jet) const
 return the error (uncertainty) associated with the determination of the area of this jet
virtual PseudoJet area_4vector (const PseudoJet &jet) const
 return the 4-vector area
virtual double empty_area (const Selector &selector) const
 return the total area, corresponding to the given selector, that is free of jets
virtual double n_empty_jets (const Selector &selector) const
 return something similar to the number of pure ghost jets in the given rap-phi range in an active area case.
virtual bool is_pure_ghost (const PseudoJet &jet) const
 true if a jet is made exclusively of ghosts
virtual bool has_explicit_ghosts () const
 true if this ClusterSequence has explicit ghosts
virtual void get_median_rho_and_sigma (const std::vector< PseudoJet > &all_jets, const Selector &selector, bool use_area_4vector, double &median, double &sigma, double &mean_area, bool all_are_incl=false) const
 overload version of what's in the ClusterSequenceAreaBase class, which additionally checks compatibility between "selector" and region in which ghosts are thrown.
virtual void get_median_rho_and_sigma (const Selector &selector, bool use_area_4vector, double &median, double &sigma) const
 overload version of what's in the ClusterSequenceAreaBase class, which actually just does the same thing as the base version (but since we've overridden the 5-argument version above, we have to override the 4-argument version too.
virtual void get_median_rho_and_sigma (const Selector &selector, bool use_area_4vector, double &median, double &sigma, double &mean_area) const
 overload version of what's in the ClusterSequenceAreaBase class, which actually just does the same thing as the base version (but since we've overridden the multi-argument version above, we have to override the 5-argument version too.
virtual void parabolic_pt_per_unit_area (double &a, double &b, const Selector &selector, double exclude_above=-1.0, bool use_area_4vector=false) const
 overload version of what's in the ClusterSequenceAreaBase class, which additionally checks compatibility between "range" and region in which ghosts are thrown.

Detailed Description

General class for user to obtain ClusterSequence with additional area information.

Based on the area_def, it automatically dispatches the work to the appropriate actual ClusterSequenceAreaBase-derived-class to do the real work.

Definition at line 49 of file ClusterSequenceArea.hh.


Member Function Documentation

virtual double fastjet::ClusterSequenceArea::empty_area ( const Selector selector) const [inline, virtual]

return the total area, corresponding to the given selector, that is free of jets

The selector needs to have a finite area and be applicable jet by jet (see the BackgroundEstimator and Subtractor tools for more advanced usage)

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 110 of file ClusterSequenceArea.hh.

virtual double fastjet::ClusterSequenceArea::n_empty_jets ( const Selector selector) const [inline, virtual]

return something similar to the number of pure ghost jets in the given rap-phi range in an active area case.

For the local implementation we return empty_area/(0.55 pi R^2), based on measured properties of ghost jets with kt and cam. Note that the number returned is a double.

The selector needs to have a finite area and be applicable jet by jet (see the BackgroundEstimator and Subtractor tools for more advanced usage)

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 122 of file ClusterSequenceArea.hh.

virtual void fastjet::ClusterSequenceArea::get_median_rho_and_sigma ( const std::vector< PseudoJet > &  all_jets,
const Selector selector,
bool  use_area_4vector,
double &  median,
double &  sigma,
double &  mean_area,
bool  all_are_incl = false 
) const [inline, virtual]

overload version of what's in the ClusterSequenceAreaBase class, which additionally checks compatibility between "selector" and region in which ghosts are thrown.

The selector needs to have a finite area and be applicable jet by jet (see the BackgroundEstimator and Subtractor tools for more advanced usage)

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 144 of file ClusterSequenceArea.hh.

virtual void fastjet::ClusterSequenceArea::get_median_rho_and_sigma ( const Selector selector,
bool  use_area_4vector,
double &  median,
double &  sigma 
) const [inline, virtual]

overload version of what's in the ClusterSequenceAreaBase class, which actually just does the same thing as the base version (but since we've overridden the 5-argument version above, we have to override the 4-argument version too.

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 160 of file ClusterSequenceArea.hh.

virtual void fastjet::ClusterSequenceArea::get_median_rho_and_sigma ( const Selector selector,
bool  use_area_4vector,
double &  median,
double &  sigma,
double &  mean_area 
) const [inline, virtual]

overload version of what's in the ClusterSequenceAreaBase class, which actually just does the same thing as the base version (but since we've overridden the multi-argument version above, we have to override the 5-argument version too.

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 171 of file ClusterSequenceArea.hh.

virtual void fastjet::ClusterSequenceArea::parabolic_pt_per_unit_area ( double &  a,
double &  b,
const Selector selector,
double  exclude_above = -1.0,
bool  use_area_4vector = false 
) const [inline, virtual]

overload version of what's in the ClusterSequenceAreaBase class, which additionally checks compatibility between "range" and region in which ghosts are thrown.

Reimplemented from fastjet::ClusterSequenceAreaBase.

Definition at line 183 of file ClusterSequenceArea.hh.


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