/data/refman/pasoursint/CMSSW_6_1_1/src/Calibration/Tools/interface/TrackAssociator.h

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#ifndef HTrackAssociator_HTrackAssociator_h
#define HTrackAssociator_HTrackAssociator_h 1

// -*- C++ -*-
//
// Package:    HTrackAssociator
// Class:      HTrackAssociator
// 
/*

 Description: <one line class summary>

 Implementation:
     <Notes on implementation>
*/
//
// Original Author:  Dmytro Kovalskyi
// Modified for ECAL+HCAL by:  Michal Szleper
//

#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "DataFormats/Common/interface/Handle.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "DataFormats/Common/interface/OrphanHandle.h"

#include "DataFormats/TrackReco/interface/TrackBase.h"
#include "Geometry/CaloGeometry/interface/CaloGeometry.h"
#include "TrackingTools/GeomPropagators/interface/Propagator.h"

#include "Calibration/Tools/interface/CaloDetIdAssociator.h"
#include "Calibration/Tools/interface/EcalDetIdAssociator.h"
#include "Calibration/Tools/interface/HcalDetIdAssociator.h"
#include "Calibration/Tools/interface/TrackDetMatchInfo.h"

#include "DataFormats/CaloTowers/interface/CaloTower.h"
#include "DataFormats/EcalRecHit/interface/EcalRecHit.h"
#include "DataFormats/HcalRecHit/interface/HBHERecHit.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/Math/interface/Vector3D.h"
#include "DataFormats/Math/interface/Point3D.h"

#include "SimDataFormats/Track/interface/SimTrack.h"
#include "SimDataFormats/Vertex/interface/SimVertex.h"


class HTrackAssociator {
 public:
   HTrackAssociator();
   ~HTrackAssociator();
   
   class HAssociatorParameters {
    public:
      HAssociatorParameters() {
         // default parameters
         // define match cones, dR=sqrt(dEta^2+dPhi^2)
         dREcal = 0.03;
         dRHcal = 0.07;
         dRCalo = 0.07;
         
         idREcal = 1;
         idRHcal = 4;
         idRCalo = 4;
         
         // match all sub-detectors by default
         useEcal = true;
         useHcal = true;
         useCalo = true;
      }
      double dREcal;
      double dRHcal;
      double dRCalo;
      int idREcal;
      int idRHcal;
      int idRCalo;
      
      bool useEcal;
      bool useHcal;
      bool useCalo;
   };
   
   
   HTrackDetMatchInfo            associate( const edm::Event&,
                                           const edm::EventSetup&,
                                           const FreeTrajectoryState&,
                                           const HAssociatorParameters& );

   std::vector<EcalRecHit>  associateEcal( const edm::Event&,
                                           const edm::EventSetup&,
                                           const FreeTrajectoryState&,
                                           const double dR = -1 );
   
   double                   getEcalEnergy( const edm::Event&,
                                           const edm::EventSetup&,
                                           const FreeTrajectoryState&,
                                           const double dR = -1 );
   
   std::vector<CaloTower>   associateHcal( const edm::Event&,
                                           const edm::EventSetup&,
                                           const FreeTrajectoryState&,
                                           const double dR = -1 );

   double                   getHcalEnergy( const edm::Event&,
                                           const edm::EventSetup&,
                                           const FreeTrajectoryState&,
                                           const double dR = -1 );
   void setPropagator( Propagator* );
   
   void useDefaultPropagator();
   
   void addDataLabels( const std::string className,
                       const std::string moduleLabel,
                       const std::string productInstanceLabel = "");
   
   FreeTrajectoryState getFreeTrajectoryState( const edm::EventSetup&, 
                                               const reco::Track& );
   FreeTrajectoryState getFreeTrajectoryState( const edm::EventSetup&, 
                                               const SimTrack&, 
                                               const SimVertex& );
   
 private:
   void       fillEcal( const edm::Event&,
                        const edm::EventSetup&,
                        HTrackDetMatchInfo&, 
                        const FreeTrajectoryState&,
                        const int,
                        const double);

   void       fillHcal( const edm::Event&,
                        const edm::EventSetup&,
                        HTrackDetMatchInfo&,
                        const FreeTrajectoryState&,
                        const int,
                        const double);

   void fillHcalTowers( const edm::Event&,
                        const edm::EventSetup&,
                        HTrackDetMatchInfo&, 
                        const FreeTrajectoryState&,
                        const int,
                        const double);
   
   void fillCaloTowers( const edm::Event&,
                        const edm::EventSetup&,
                        HTrackDetMatchInfo&, 
                        const FreeTrajectoryState&,
                        const int,
                        const double);
   
   void           init( const edm::EventSetup&);
   
   math::XYZPoint getPoint( const GlobalPoint& point)
     {
        return math::XYZPoint(point.x(),point.y(),point.z());
     }
   
   math::XYZPoint getPoint( const LocalPoint& point)
     {
        return math::XYZPoint(point.x(),point.y(),point.z());
     }
   
   math::XYZVector getVector( const GlobalVector& vec)
     {
        return math::XYZVector(vec.x(),vec.y(),vec.z());
     }
   
   math::XYZVector getVector( const LocalVector& vec)
     {
        return math::XYZVector(vec.x(),vec.y(),vec.z());
     }
   
   Propagator* ivProp_;
   Propagator* defProp_;
   bool useDefaultPropagator_;
   int debug_;
   std::vector<std::vector<std::set<uint32_t> > >* caloTowerMap_;
   
   HEcalDetIdAssociator ecalDetIdAssociator_;
   HHcalDetIdAssociator hcalDetIdAssociator_;
   HCaloDetIdAssociator caloDetIdAssociator_;
   
   edm::ESHandle<CaloGeometry> theCaloGeometry_;
   
   std::vector<std::string> EBRecHitCollectionLabels;
   std::vector<std::string> EERecHitCollectionLabels;
   std::vector<std::string> HBHERecHitCollectionLabels;
   std::vector<std::string> CaloTowerCollectionLabels;
};
#endif