python.JetDefinition Namespace Reference

Classes
class	JetConstitModifier
class	JetDefinition
class	JetInputConstit
class	JetInputConstitSeq
class	JetInputExternal
class	JetInputType
class	JetModifier

Functions
	formatRvalue (parameter)
	buildJetAlgName (finder, mainParam, variableRMassScale=-1.0, variableRMinRadius=-1.0)
	_condAlwaysPass (condflags)
	buildNothing (*l)

Variables
list	__all__ = [ "JetDefinition","xAODType", "JetModifier", "JetConstitModifier" , "JetInputConstitSeq", "JetInputExternal"]
	jetlog = Logging.logging.getLogger('JetDefinition')

Detailed Description

JetDefinition: A module for classes encoding definitions of jets and 
related objects for configuring jet reconstruction                   

Various classes encode definitions of different types of components used in Jet Reco.
They are : 

 - JetInputExternal : describes how to build a source container, typically external to the jet domain. This includes input to jet finding  (ex: CaloCluster, Track) but also other sources like EventDensity...

 - JetInputConstit :  describes specifically an input constituents container (an input to a PseudoJetAlgorithm), thus referring to a JetInputExternal as the primary source.
 - JetInputConstitSeq : a subclass of JetInputConstit, describing how a constituents container is build from a JetConstituentModSequence (ex: PU or Origin correction).
 - JetConstitModifier : describes a constituent modifier tool to be used in a JetConstituentModSequence

 - JetDefinition : describes a full jet reco sequence. Uses a JetInputConstit and a list of JetModifier
 - JetModifier : describes a JetModifier c++ tool. 

Author: TJ Khoo, P-A Delsart                                         

Function Documentation

_condAlwaysPass()

python.JetDefinition._condAlwaysPass ( condflags )

protected

Definition at line 61 of file JetDefinition.py.

def _condAlwaysPass(condflags):
    return True,""
 

buildJetAlgName()

python.JetDefinition.buildJetAlgName	(		finder,
			mainParam,
			variableRMassScale = -1.0,
			variableRMinRadius = -1.0 )

variableRMassScale (Rho) in MeV 

Definition at line 50 of file JetDefinition.py.

                    variableRMassScale= -1.0, variableRMinRadius=-1.0):
    """variableRMassScale (Rho) in MeV """
    if ( variableRMassScale >= 0.0 and variableRMinRadius >= 0.0):
        rmaxstr = formatRvalue(mainParam)
        rminstr = formatRvalue(variableRMinRadius)
        return f"{finder}VR{str(int(variableRMassScale/1000))}Rmax{rmaxstr}Rmin{rminstr}"
    return finder + formatRvalue(mainParam)
 
 
 

buildNothing()

python.JetDefinition.buildNothing

(

*

l

)

Definition at line 659 of file JetDefinition.py.

def buildNothing(*l):
    return None

formatRvalue()

python.JetDefinition.formatRvalue

(

parameter

)

Define the convention that we write R truncating the decimal point
if R>=1, then we write R*10.
(Code from JetRecUtils )

Definition at line 34 of file JetDefinition.py.

def formatRvalue(parameter):
    """Define the convention that we write R truncating the decimal point
    if R>=1, then we write R*10.
    (Code from JetRecUtils )
    """
    # impose precision limits where there could be ambiguity
    if int(10*parameter)>=1 and int(100*parameter % 10):
        #jetlog.warning('Radius parameter {0} exceeds allowable precision of 0.1'.format(parameter))
        raise ValueError('Bad radius parameter')
    if int(parameter)>=1:
        return "{0:.0f}".format(10*parameter)
    else:
        return "{0:.1g}".format(10*parameter).replace('.','')
 
 
# Could also split off a VR name builder

Variable Documentation

__all__

list python.JetDefinition.__all__ = [ "JetDefinition","xAODType", "JetModifier", "JetConstitModifier" , "JetInputConstitSeq", "JetInputExternal"]

private

Definition at line 24 of file JetDefinition.py.

jetlog

python.JetDefinition.jetlog = Logging.logging.getLogger('JetDefinition')

Definition at line 27 of file JetDefinition.py.