IParticleExtractor Class Reference

#include <IParticleExtractor.h>

Inheritance diagram for IParticleExtractor:

Collaboration diagram for IParticleExtractor:

Public Member Functions
	IParticleExtractor (const xAOD::IParticleContainer *, const std::string &label="", bool isGhost=false, bool isTrigger=false)
virtual	~IParticleExtractor ()
virtual IParticleExtractor *	clone () const override
virtual IParticleExtractor *	ghostClone () const override
virtual void	addToJet (xAOD::Jet &, const std::vector< int > &indices) const override
virtual std::string	toString (int level) const override
virtual bool	checkIntegrity () const override

Private Attributes
const xAOD::IParticleContainer *	m_iParticles
std::string	m_label
bool	m_isGhost
bool	m_debug {false}
bool	m_isTrigger {false}

Detailed Description

Definition at line 18 of file IParticleExtractor.h.

Constructor & Destructor Documentation

IParticleExtractor()

IParticleExtractor::IParticleExtractor	(	const xAOD::IParticleContainer *	ips,
		const std::string &	label = "",
		bool	isGhost = false,
		bool	isTrigger = false
	)

Definition at line 13 of file IParticleExtractor.cxx.

                                                       : 
  m_iParticles(ips), m_label(label),
  m_isGhost(isGhost),
  m_isTrigger(isTrigger)// does not add constits or assoc particles if true
{
}

~IParticleExtractor()

IParticleExtractor::~IParticleExtractor ( )

virtualdefault

Member Function Documentation

addToJet()

void IParticleExtractor::addToJet ( xAOD::Jet &  jet, const std::vector< int > &  indices  ) const

overridevirtual

Implements IConstituentExtractor.

Definition at line 36 of file IParticleExtractor.cxx.

                                                                      {
  //Add a template specialisation for muon segments
 
  std::vector<const xAOD::IParticle*> constituents;
  constituents.reserve(indices.size());
  for(auto i : indices){
    if(m_debug){
      constituents.push_back(m_iParticles->at(i));
    } else {
      constituents.push_back((*m_iParticles)[i]);
    }
  }
 
  if(m_isGhost) {
    // ghosts (in this context) are objects to be stored with the
    // jet, but with a scaled momentum so they have no kinimatical effect.
    double ptSum = std::accumulate(constituents.begin(),
                                   constituents.end(),
                                   0.0,
                                   [](double sumPt, const xAOD::IParticle* p){
                                     return sumPt + p->pt();});
 
    if ( (!m_isTrigger) || (m_label == "GhostTrack") ){jet.setAssociatedObjects(m_label, constituents);}
    jet.setAttribute<float>(m_label + "Pt", ptSum);
    jet.setAttribute<int>(m_label+"Count", constituents.size());
  } else {
    // these are constituents
    for(const auto *c: constituents) {
      jet.addConstituent(c);
    }
  }
}

checkIntegrity()

bool IParticleExtractor::checkIntegrity ( ) const

overridevirtual

Implements IConstituentExtractor.

Definition at line 104 of file IParticleExtractor.cxx.

                                              {
  for(const auto *const ip: (*m_iParticles)){
    try{
      ip->e();
    } catch(...) {
      return false;
    }
  }
  return true;
}

clone()

IParticleExtractor * IParticleExtractor::clone ( ) const

overridevirtual

Implements IConstituentExtractor.

Definition at line 25 of file IParticleExtractor.cxx.

                                                    {
  return new IParticleExtractor(*this);
}

ghostClone()

IParticleExtractor * IParticleExtractor::ghostClone ( ) const

overridevirtual

Implements IConstituentExtractor.

Definition at line 29 of file IParticleExtractor.cxx.

                                                         {
  // user responsible for deletion.
  auto *clone =  new IParticleExtractor(*this);
  (*clone).m_isGhost = true;
  return clone;
}

toString()

std::string IParticleExtractor::toString ( int  level ) const

overridevirtual

Implements IConstituentExtractor.

Definition at line 72 of file IParticleExtractor.cxx.

                                                      {
  std::ostringstream oss{"", std::ios::ate};
  oss << "IParticleExtractor dump level (" << level << ")"
      << " label " << m_label 
      << " isGhost: " << std::boolalpha << m_isGhost 
      << " isTrigger: " << std::boolalpha << m_isTrigger 
      << " No of IParticles: " << m_iParticles->size();
 
  if (level > 0){
 
    oss << "\n IParticle energies\n";
    std::vector<float> energies;
    energies.reserve(m_iParticles->size());
    std::transform(m_iParticles->begin(),
                   m_iParticles->end(),
                   std::back_inserter(energies),
                   [](const xAOD::IParticle* p){return p->e();});
 
    LineFormatter formatter(10); // 10 numbers/line
    oss << formatter(energies) << '\n';
 
    std::vector<const xAOD::IParticle*> adds(m_iParticles->begin(),
                                             m_iParticles->end());
    oss << "\n IParticle addresses\n"
        << formatter(adds)
        << '\n';
  }
  return oss.str();
}

Member Data Documentation

m_debug

bool IParticleExtractor::m_debug {false}

private

Definition at line 39 of file IParticleExtractor.h.

m_iParticles

const xAOD::IParticleContainer* IParticleExtractor::m_iParticles

private

Definition at line 36 of file IParticleExtractor.h.

m_isGhost

bool IParticleExtractor::m_isGhost

private

Definition at line 38 of file IParticleExtractor.h.

m_isTrigger

bool IParticleExtractor::m_isTrigger {false}

private

Definition at line 40 of file IParticleExtractor.h.

m_label

std::string IParticleExtractor::m_label

private

Definition at line 37 of file IParticleExtractor.h.

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

• IParticleExtractor.h
• IParticleExtractor.cxx