Base class to all the history types. More...

#include <HistoryBase.h>

Inheritance diagram for HistoryBase:

Public Types
typedef std::vector< const HepMC::GenParticle * >	GenParticleTrail
	HepMC::GenParticle trail type. More...

typedef std::vector< const HepMC::GenVertex * >	GenVertexTrail
	GenVertex trail type. More...

typedef std::set< const HepMC::GenVertex * >	GenVertexTrailHelper
	GenVertex trail helper type. More...

typedef std::vector< const reco::GenParticle * >	RecoGenParticleTrail
	reco::GenParticle trail type. More...

typedef std::set< const reco::GenParticle * >	RecoGenParticleTrailHelper
	reco::GenParticle trail helper type. More...

typedef std::vector < TrackingParticleRef >	SimParticleTrail
	SimParticle trail type. More...

typedef std::vector < TrackingVertexRef >	SimVertexTrail
	SimVertex trail type. More...

Public Member Functions
void	depth (int d)
	Set the depth of the history. More...

const HepMC::GenParticle *	genParticle () const
	Returns a pointer to most primitive status 1 or 2 particle in the genParticleTrail_. More...

GenParticleTrail const &	genParticleTrail () const
	Return all generated particle (HepMC::GenParticle) in the history. More...

GenVertexTrail const &	genVertexTrail () const
	Return all generated vertex in the history. More...

	HistoryBase ()

const reco::GenParticle *	recoGenParticle () const
	Returns a pointer to most primitive status 1 or 2 particle in the recoGenParticleTrail_. More...

RecoGenParticleTrail const &	recoGenParticleTrail () const
	Return all reco::GenParticle in the history. More...

const TrackingParticleRef &	simParticle () const
	Return the initial tracking particle from the history. More...

SimParticleTrail const &	simParticleTrail () const
	Return all the simulated particle in the history. More...

const TrackingVertexRef &	simVertex () const
	Return the initial tracking vertex from the history. More...

SimVertexTrail const &	simVertexTrail () const
	Return all the simulated vertices in the history. More...

Protected Member Functions
bool	evaluate (TrackingParticleRef tpr)
	Evaluate track history using a TrackingParticleRef. More...

bool	evaluate (TrackingVertexRef tvr)
	Evaluate track history using a TrackingParticleRef. More...

Protected Attributes
GenParticleTrail	genParticleTrail_

GenVertexTrail	genVertexTrail_

GenVertexTrailHelper	genVertexTrailHelper_

RecoGenParticleTrail	recoGenParticleTrail_

RecoGenParticleTrailHelper	recoGenParticleTrailHelper_

SimParticleTrail	simParticleTrail_

SimVertexTrail	simVertexTrail_

Private Member Functions
void	resetTrails ()
	Reset trail functions. More...

void	resetTrails (TrackingParticleRef tpr)

void	traceGenHistory (HepMC::GenParticle const *)
	Trace all the simulated information for a given pointer to a HepMC::GenParticle. More...

void	traceGenHistory (HepMC::GenVertex const *)
	Trace all the simulated information for a given pointer to a GenVertex. More...

void	traceRecoGenHistory (reco::GenParticle const *)
	Trace all the simulated information for a given pointer to a reco::GenParticle. More...

bool	traceSimHistory (TrackingParticleRef const &, int)
	Trace all the simulated information for a given reference to a TrackingParticle. More...

bool	traceSimHistory (TrackingVertexRef const &, int)
	Trace all the simulated information for a given reference to a TrackingVertex. More...

Private Attributes
int	depth_

Detailed Description

Base class to all the history types.

Definition at line 12 of file HistoryBase.h.

Member Typedef Documentation

typedef std::vector<const HepMC::GenParticle *> HistoryBase::GenParticleTrail

HepMC::GenParticle trail type.

Definition at line 18 of file HistoryBase.h.

typedef std::vector<const HepMC::GenVertex *> HistoryBase::GenVertexTrail

GenVertex trail type.

Definition at line 27 of file HistoryBase.h.

typedef std::set<const HepMC::GenVertex *> HistoryBase::GenVertexTrailHelper

GenVertex trail helper type.

Definition at line 30 of file HistoryBase.h.

typedef std::vector<const reco::GenParticle *> HistoryBase::RecoGenParticleTrail

reco::GenParticle trail type.

Definition at line 21 of file HistoryBase.h.

typedef std::set<const reco::GenParticle *> HistoryBase::RecoGenParticleTrailHelper

reco::GenParticle trail helper type.

Definition at line 24 of file HistoryBase.h.

typedef std::vector<TrackingParticleRef> HistoryBase::SimParticleTrail

SimParticle trail type.

Definition at line 33 of file HistoryBase.h.

typedef std::vector<TrackingVertexRef> HistoryBase::SimVertexTrail

SimVertex trail type.

Definition at line 36 of file HistoryBase.h.

Constructor & Destructor Documentation

HistoryBase::HistoryBase ( )

inline

Definition at line 39 of file HistoryBase.h.

Member Function Documentation

void HistoryBase::depth ( int d )

inline

Set the depth of the history.

Definition at line 53 of file HistoryBase.h.

Referenced by traceSimHistory().

bool HistoryBase::evaluate ( TrackingParticleRef tpr )

inlineprotected

Evaluate track history using a TrackingParticleRef.

Definition at line 135 of file HistoryBase.h.

Referenced by TrackHistory::evaluate(), and VertexHistory::evaluate().

bool HistoryBase::evaluate ( TrackingVertexRef tvr )

inlineprotected

Evaluate track history using a TrackingParticleRef.

Definition at line 149 of file HistoryBase.h.

const HepMC::GenParticle* HistoryBase::genParticle ( ) const

inline

Returns a pointer to most primitive status 1 or 2 particle in the genParticleTrail_.

Definition at line 101 of file HistoryBase.h.

Referenced by GenTrackMatcher::produce().

GenParticleTrail const& HistoryBase::genParticleTrail ( ) const

inline

Return all generated particle (HepMC::GenParticle) in the history.

Definition at line 77 of file HistoryBase.h.

GenVertexTrail const& HistoryBase::genVertexTrail ( ) const

inline

Return all generated vertex in the history.

Definition at line 71 of file HistoryBase.h.

const reco::GenParticle* HistoryBase::recoGenParticle ( ) const

inline

Returns a pointer to most primitive status 1 or 2 particle in the recoGenParticleTrail_.

Definition at line 108 of file HistoryBase.h.

RecoGenParticleTrail const& HistoryBase::recoGenParticleTrail ( ) const

inline

Return all reco::GenParticle in the history.

Definition at line 83 of file HistoryBase.h.

void HistoryBase::resetTrails ( )

inlineprivate

Reset trail functions.

Definition at line 176 of file HistoryBase.h.

void HistoryBase::resetTrails ( TrackingParticleRef tpr )

inlineprivate

Definition at line 187 of file HistoryBase.h.

const TrackingParticleRef& HistoryBase::simParticle ( ) const

inline

Return the initial tracking particle from the history.

Definition at line 89 of file HistoryBase.h.

SimParticleTrail const& HistoryBase::simParticleTrail ( ) const

inline

Return all the simulated particle in the history.

Definition at line 65 of file HistoryBase.h.

const TrackingVertexRef& HistoryBase::simVertex ( ) const

inline

Return the initial tracking vertex from the history.

Definition at line 95 of file HistoryBase.h.

SimVertexTrail const& HistoryBase::simVertexTrail ( ) const

inline

Return all the simulated vertices in the history.

Definition at line 59 of file HistoryBase.h.

void HistoryBase::traceGenHistory ( HepMC::GenParticle const * genParticle )

private

Trace all the simulated information for a given pointer to a HepMC::GenParticle.

Definition at line 31 of file HistoryBase.cc.

References funct::abs(), depth_, and genParticleTrail_.

Referenced by traceGenHistory(), and traceSimHistory().

 {
     // Third stop criteria: status abs(depth_) particles after the hadronization.
     // The after hadronization is done by detecting the pdg_id pythia code from 88 to 99
     if ( genParticle->status() <= abs(depth_) && (genParticle->pdg_id() < 88 || genParticle->pdg_id() > 99) )
     {
         genParticleTrail_.push_back(genParticle);
         // Get the producer vertex and trace it history
         traceGenHistory( genParticle->production_vertex() );
     }
 }

void HistoryBase::traceGenHistory ( HepMC::GenVertex const * genVertex )

private

Trace all the simulated information for a given pointer to a GenVertex.

Definition at line 44 of file HistoryBase.cc.

References genVertexTrail_, genVertexTrailHelper_, and traceGenHistory().

 {
     // Verify if has a vertex associated
     if (genVertex)
     {
         // Skip if already exist in the collection
         if ( genVertexTrailHelper_.find(genVertex) != genVertexTrailHelper_.end() )
             return;
         // Add vertex to the history
         genVertexTrail_.push_back(genVertex);
         genVertexTrailHelper_.insert(genVertex);
         // Verify if the vertex has incoming particles
         if ( genVertex->particles_in_size() )
             traceGenHistory( *(genVertex->particles_in_const_begin()) );
     }
 }

void HistoryBase::traceRecoGenHistory ( reco::GenParticle const * genParticle )

private

Trace all the simulated information for a given pointer to a reco::GenParticle.

Definition at line 8 of file HistoryBase.cc.

References funct::abs(), depth_, reco::CompositeRefCandidateT< D >::mother(), reco::LeafCandidate::pdgId(), recoGenParticleTrail_, recoGenParticleTrailHelper_, and reco::LeafCandidate::status().

Referenced by traceSimHistory().

 {
     // fill the trace of reco::GenParticle for correct reading of the History flags etc.
     // This is called from the TrackingParticle->genParticle_begin() which is a reco::GenParticle
     
     // Take onlt genParticles with a status() smaller than "depth_". Typically depth is 2 and so you trace back untill you reach the hard partons
     // see for status(): https://twiki.cern.ch/twiki/bin/view/CMSPublic/WorkBookGenParticleCandidate#GenPCand
     if ( genParticle->status() <= abs(depth_) && (genParticle->pdgId() < 88 || genParticle->pdgId() > 99) )
     {
         //If the particle is already in the history, it is looping and you should stop
         if ( recoGenParticleTrailHelper_.find(genParticle) != recoGenParticleTrailHelper_.end() ){
            return;
         }
         recoGenParticleTrail_.push_back(genParticle);
         recoGenParticleTrailHelper_.insert(genParticle);
         // Get the genParticle's mother and trace its history
         if (genParticle->mother() != 0){
             traceRecoGenHistory( (const reco::GenParticle *)genParticle->mother() );
         }
     }
 }

bool HistoryBase::traceSimHistory	(	TrackingParticleRef const &	trackingParticle,
		int	depth
	)

private

Trace all the simulated information for a given reference to a TrackingParticle.

Definition at line 62 of file HistoryBase.cc.

References depth(), depth_, LogDebug, and traceRecoGenHistory().

Referenced by traceSimHistory().

 {
     // first stop condition: if the required depth is reached
     if ( depth == depth_ && depth_ >= 0 ) return true;
 
     // second stop condition: if a gen particle is associated to the TP
     if ( !trackingParticle->genParticles().empty() )
     {
         LogDebug("TrackHistory") << "Particle " << trackingParticle->pdgId() << " has a GenParicle image." 
                  << std::endl;
 
     traceRecoGenHistory(&(**(trackingParticle->genParticle_begin()))); 
 
 
     }
 
     LogDebug("TrackHistory") << "No GenParticle image for " << trackingParticle->pdgId() << std::endl;
 
     // if no association between TP and genParticles is found: get a reference to the TP's parent vertex and trace its history
     return traceSimHistory( trackingParticle->parentVertex(), depth );
 }

bool HistoryBase::traceSimHistory	(	TrackingVertexRef const &	trackingVertex,
		int	depth
	)

private

Trace all the simulated information for a given reference to a TrackingVertex.

Definition at line 85 of file HistoryBase.cc.

References spr::find(), edm::Ref< C, T, F >::isNonnull(), LogDebug, simParticleTrail_, simVertexTrail_, traceGenHistory(), and traceSimHistory().

 {
     // verify if the parent vertex exists
     if ( trackingVertex.isNonnull() )
     {
         // save the vertex in the trail
         simVertexTrail_.push_back(trackingVertex);
 
         if ( !trackingVertex->sourceTracks().empty() )
         {
             LogDebug("TrackHistory") << "Moving on to the parent particle." << std::endl;
 
             // select the original source in case of combined vertices
             bool flag = false;
             TrackingVertex::tp_iterator itd, its;
 
             for (its = trackingVertex->sourceTracks_begin(); its != trackingVertex->sourceTracks_end(); its++)
             {
                 for (itd = trackingVertex->daughterTracks_begin(); itd != trackingVertex->daughterTracks_end(); itd++)
                     if (itd != its)
                     {
                         flag = true;
                         break;
                     }
                 if (flag)
                     break;
             }
 
         if(!flag)
           return false;
 
             // verify if the new particle is not in the trail (looping partiles)
             if (
                 std::find(
                     simParticleTrail_.begin(),
                     simParticleTrail_.end(),
                     *its
                 ) != simParticleTrail_.end()
             )
             {
                 LogDebug("TrackHistory") <<  "WARNING: Looping track found." << std::endl;
                 return false;
             }
 
             // save particle in the trail
             simParticleTrail_.push_back(*its);
             return traceSimHistory (*its, --depth);
         }
         else if ( !trackingVertex->genVertices().empty() )
         {
             // navigate over all the associated generated vertexes
             LogDebug("TrackHistory") << "Vertex has " << trackingVertex->genVertices().size() << "GenVertex image." << std::endl;
             for (
                 TrackingVertex::genv_iterator ivertex = trackingVertex->genVertices_begin();
                 ivertex != trackingVertex->genVertices_end();
                 ++ivertex
             )
                 traceGenHistory(&(**(ivertex)));
             return true;
         }
         else
         {
             LogDebug("TrackHistory") <<  "WARNING: Source track for tracking vertex cannot be found." << std::endl;
         }
     }
     else
     {
         LogDebug("TrackHistory") << " WARNING: Vertex cannot be found.";
     }
 
     return false;
 }