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TracksToTrajectories Class Reference

This class, which is a EDProducer, takes a reco::TrackCollection from the Event and refits the rechits strored in the reco::Tracks. More...

#include <TrackingTools/TrackRefitter/plugins/TracksToTrajectories.h>

Inheritance diagram for TracksToTrajectories:

List of all members.

Public Member Functions
virtual void	produce (edm::Event &, const edm::EventSetup &)
	Convert a reco::TrackCollection into std::vector<Trajectory>.
	TracksToTrajectories (const edm::ParameterSet &)
	Constructor.
virtual	~TracksToTrajectories ()
	Destructor.
Private Attributes
edm::InputTag	theTracksLabel
TrackTransformer *	theTrackTransformer

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Detailed Description

This class, which is a EDProducer, takes a reco::TrackCollection from the Event and refits the rechits strored in the reco::Tracks.

The final result is a std::vector of Trajectories (objs of the type "Trajectory"), which is loaded into the Event in a transient way

Date

2007/04/20 09:40:59

Revision

1.1

Author:

R. Bellan - INFN Torino <riccardo.bellan@cern.ch>

Definition at line 20 of file TracksToTrajectories.h.

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Constructor & Destructor Documentation

TracksToTrajectories::TracksToTrajectories

(

const edm::ParameterSet &

parameterSet

)

Constructor.

Definition at line 21 of file TracksToTrajectories.cc.

References edm::ParameterSet::getParameter(), theTracksLabel, and theTrackTransformer.

                                                                          {

  theTracksLabel = parameterSet.getParameter<InputTag>("Tracks");

  theTrackTransformer = new TrackTransformer(parameterSet.getParameter<ParameterSet>("TrackTransformer"));
  
  produces<vector<Trajectory> >();
  produces<TrajTrackAssociationCollection>();
}

TracksToTrajectories::~TracksToTrajectories

(

)

[virtual]

Destructor.

Definition at line 32 of file TracksToTrajectories.cc.

References theTrackTransformer.

                                           {
  if(theTrackTransformer) delete theTrackTransformer;
}

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Member Function Documentation

void TracksToTrajectories::produce	(	edm::Event &	event,
		const edm::EventSetup &	setup
	)			[virtual]

Convert a reco::TrackCollection into std::vector<Trajectory>.

Convert Tracks into Trajectories.

Implements edm::EDProducer.

Definition at line 37 of file TracksToTrajectories.cc.

References LogDebug, TrackTransformer::setServices(), theTracksLabel, theTrackTransformer, tracks, and TrackTransformer::transform().

                                                                       {

  const string metname = "Reco|TrackingTools|TracksToTrajectories";

  theTrackTransformer->setServices(setup);
  
  // Collection of Trajectory
  auto_ptr<vector<Trajectory> > trajectoryCollection(new vector<Trajectory>);
  
  // Get the reference
  RefProd<vector<Trajectory> > trajectoryCollectionRefProd 
    = event.getRefBeforePut<vector<Trajectory> >();
  
  // Association map between Trajectory and Track
  auto_ptr<TrajTrackAssociationCollection> trajTrackMap(new TrajTrackAssociationCollection);
 
  // Get the RecTrack collection from the event
  Handle<reco::TrackCollection> tracks;
  event.getByLabel(theTracksLabel,tracks);
  
  Ref<vector<Trajectory> >::key_type trajectoryIndex = 0;
  reco::TrackRef::key_type trackIndex = 0;

  // Loop over the Rec tracks
  for (reco::TrackCollection::const_iterator newTrack = tracks->begin(); 
       newTrack != tracks->end(); ++newTrack) {
    
    vector<Trajectory> trajectoriesSM = theTrackTransformer->transform(*newTrack);
    
    if(!trajectoriesSM.empty()){
      // Load the trajectory in the Trajectory Container
      trajectoryCollection->push_back(trajectoriesSM.front());

      // Make the association between the Trajectory and the original Track
      trajTrackMap->insert(Ref<vector<Trajectory> >(trajectoryCollectionRefProd,trajectoryIndex++),
                           reco::TrackRef(tracks,trackIndex++));
    }
    else
      LogError(metname) << "Error in the Track refitting. This must not happen!";
  }
  LogDebug(metname)<<"Load the Trajectory Collection";
  event.put(trajectoryCollection);
  event.put(trajTrackMap);
}

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Member Data Documentation

edm::InputTag TracksToTrajectories::theTracksLabel [private]

Definition at line 38 of file TracksToTrajectories.h.

Referenced by produce(), and TracksToTrajectories().

TrackTransformer* TracksToTrajectories::theTrackTransformer [private]

Definition at line 39 of file TracksToTrajectories.h.

Referenced by produce(), TracksToTrajectories(), and ~TracksToTrajectories().

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

• TrackingTools/TrackRefitter/plugins/TracksToTrajectories.h
• TrackingTools/TrackRefitter/plugins/TracksToTrajectories.cc

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