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Public Types | Public Member Functions | Protected Types | Protected Member Functions | Protected Attributes | Private Attributes

GlobalMuonRefitter Class Reference

#include <GlobalMuonRefitter.h>

List of all members.

Public Types

typedef
MuonTransientTrackingRecHit::ConstMuonRecHitContainer 
ConstMuonRecHitContainer
typedef
MuonTransientTrackingRecHit::ConstMuonRecHitPointer 
ConstMuonRecHitPointer
typedef
TransientTrackingRecHit::ConstRecHitContainer 
ConstRecHitContainer
typedef
TransientTrackingRecHit::ConstRecHitPointer 
ConstRecHitPointer
typedef
MuonTransientTrackingRecHit::MuonRecHitContainer 
MuonRecHitContainer
typedef
MuonTransientTrackingRecHit::MuonRecHitPointer 
MuonRecHitPointer
typedef
TransientTrackingRecHit::RecHitContainer 
RecHitContainer
typedef
TransientTrackingRecHit::RecHitPointer 
RecHitPointer
enum  subDetector {
  PXB = 1, PXF = 2, TIB = 3, TID = 4,
  TOB = 5, TEC = 6
}
typedef std::vector< TrajectoryTC
typedef TC::const_iterator TI

Public Member Functions

ConstRecHitContainer getRidOfSelectStationHits (ConstRecHitContainer hits) const
 GlobalMuonRefitter (const edm::ParameterSet &, const MuonServiceProxy *)
 constructor with Parameter Set and MuonServiceProxy
std::vector< Trajectoryrefit (const reco::Track &globalTrack, const int theMuonHitsOption) const
 build combined trajectory from sta Track and tracker RecHits
std::vector< Trajectoryrefit (const reco::Track &globalTrack, const reco::TransientTrack track, TransientTrackingRecHit::ConstRecHitContainer allRecHitsTemp, const int theMuonHitsOption) const
 build combined trajectory from subset of sta Track and tracker RecHits
virtual void setEvent (const edm::Event &)
 pass the Event to the algo at each event
void setServices (const edm::EventSetup &)
 set the services needed by the TrackTransformer
std::vector< Trajectorytransform (const reco::Track &newTrack, const reco::TransientTrack track, TransientTrackingRecHit::ConstRecHitContainer recHitsForReFit) const
 refit the track with a new set of RecHits
virtual ~GlobalMuonRefitter ()
 destructor

Protected Types

enum  RefitDirection { insideOut, outsideIn, undetermined }

Protected Member Functions

void checkMuonHits (const reco::Track &, ConstRecHitContainer &, std::vector< int > &) const
 check muon RecHits, calculate chamber occupancy and select hits to be used in the final fit
RefitDirection checkRecHitsOrdering (const ConstRecHitContainer &) const
void getFirstHits (const reco::Track &, ConstRecHitContainer &, ConstRecHitContainer &) const
 get the RecHits in the tracker and the first muon chamber with hits
void printHits (const ConstRecHitContainer &) const
 print all RecHits of a trajectory
ConstRecHitContainer selectMuonHits (const Trajectory &, const std::vector< int > &) const
 select muon hits compatible with trajectory; check hits in chambers with showers
const MuonServiceProxyservice () const

Protected Attributes

std::string theCategory
float thePtCut
bool theTkTrajsAvailableFlag

Private Attributes

unsigned long long theCacheId_TRH
bool theCosmicFlag
float theCSCChi2Cut
edm::InputTag theCSCRecHitLabel
edm::Handle
< CSCRecHit2DCollection
theCSCRecHits
float theDTChi2Cut
edm::InputTag theDTRecHitLabel
edm::Handle< DTRecHitCollectiontheDTRecHits
const edm::EventtheEvent
edm::ESHandle< TrajectoryFittertheFitter
std::string theFitterName
int theHitThreshold
int theMuonHitsOption
edm::ESHandle
< TransientTrackingRecHitBuilder
theMuonRecHitBuilder
std::string theMuonRecHitBuilderName
float theProbCut
std::string thePropagatorName
RefitDirection theRefitDirection
float theRPCChi2Cut
bool theRPCInTheFit
const MuonServiceProxytheService
int theSkipStation
edm::ESHandle
< TransientTrackingRecHitBuilder
theTrackerRecHitBuilder
std::string theTrackerRecHitBuilderName
int theTrackerSkipSection
int theTrackerSkipSystem

Detailed Description

class to build muon trajectory

Date:
2010/06/18 07:40:10
Revision:
1.9
Author:
N. Neumeister Purdue University
C. Liu Purdue University
A. Everett Purdue University

Definition at line 39 of file GlobalMuonRefitter.h.


Member Typedef Documentation

Definition at line 51 of file GlobalMuonRefitter.h.

Definition at line 49 of file GlobalMuonRefitter.h.

Definition at line 44 of file GlobalMuonRefitter.h.

Definition at line 46 of file GlobalMuonRefitter.h.

Definition at line 50 of file GlobalMuonRefitter.h.

Definition at line 48 of file GlobalMuonRefitter.h.

Definition at line 43 of file GlobalMuonRefitter.h.

Definition at line 45 of file GlobalMuonRefitter.h.

typedef std::vector<Trajectory> GlobalMuonRefitter::TC

Definition at line 53 of file GlobalMuonRefitter.h.

typedef TC::const_iterator GlobalMuonRefitter::TI

Definition at line 54 of file GlobalMuonRefitter.h.


Member Enumeration Documentation

Enumerator:
insideOut 
outsideIn 
undetermined 

Definition at line 92 of file GlobalMuonRefitter.h.

Enumerator:
PXB 
PXF 
TIB 
TID 
TOB 
TEC 

Definition at line 56 of file GlobalMuonRefitter.h.

{ PXB = 1, PXF = 2, TIB = 3, TID = 4, TOB = 5, TEC = 6 };

Constructor & Destructor Documentation

GlobalMuonRefitter::GlobalMuonRefitter ( const edm::ParameterSet par,
const MuonServiceProxy *  service 
)

constructor with Parameter Set and MuonServiceProxy

Definition at line 75 of file GlobalMuonRefitter.cc.

References Exception, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), insideOut, outsideIn, theCacheId_TRH, theCategory, theCSCChi2Cut, theDTChi2Cut, theFitterName, theHitThreshold, theMuonRecHitBuilderName, thePropagatorName, theRefitDirection, theRPCChi2Cut, theRPCInTheFit, theSkipStation, theTrackerRecHitBuilderName, theTrackerSkipSection, and theTrackerSkipSystem.

                                                                        : 
  theCosmicFlag(par.getParameter<bool>("PropDirForCosmics")),
  theDTRecHitLabel(par.getParameter<InputTag>("DTRecSegmentLabel")),
  theCSCRecHitLabel(par.getParameter<InputTag>("CSCRecSegmentLabel")),
  theService(service) {

  theCategory = par.getUntrackedParameter<string>("Category", "Muon|RecoMuon|GlobalMuon|GlobalMuonRefitter");

  theHitThreshold = par.getParameter<int>("HitThreshold");
  theDTChi2Cut  = par.getParameter<double>("Chi2CutDT");
  theCSCChi2Cut = par.getParameter<double>("Chi2CutCSC");
  theRPCChi2Cut = par.getParameter<double>("Chi2CutRPC");

  // Refit direction
  string refitDirectionName = par.getParameter<string>("RefitDirection");

  if (refitDirectionName == "insideOut" ) theRefitDirection = insideOut;
  else if (refitDirectionName == "outsideIn" ) theRefitDirection = outsideIn;
  else 
    throw cms::Exception("TrackTransformer constructor") 
      <<"Wrong refit direction chosen in TrackTransformer ParameterSet"
      << "\n"
      << "Possible choices are:"
      << "\n"
      << "RefitDirection = insideOut or RefitDirection = outsideIn";
  
  theFitterName = par.getParameter<string>("Fitter");  
  thePropagatorName = par.getParameter<string>("Propagator");

  theSkipStation        = par.getParameter<int>("SkipStation");
  theTrackerSkipSystem  = par.getParameter<int>("TrackerSkipSystem");
  theTrackerSkipSection = par.getParameter<int>("TrackerSkipSection");//layer, wheel, or disk depending on the system

  theTrackerRecHitBuilderName = par.getParameter<string>("TrackerRecHitBuilder");
  theMuonRecHitBuilderName = par.getParameter<string>("MuonRecHitBuilder");

  theRPCInTheFit = par.getParameter<bool>("RefitRPCHits");

  theCacheId_TRH = 0;

}
GlobalMuonRefitter::~GlobalMuonRefitter ( ) [virtual]

destructor

Definition at line 122 of file GlobalMuonRefitter.cc.

                                        {
}

Member Function Documentation

void GlobalMuonRefitter::checkMuonHits ( const reco::Track muon,
ConstRecHitContainer all,
std::vector< int > &  hits 
) const [protected]

check muon RecHits, calculate chamber occupancy and select hits to be used in the final fit

Definition at line 264 of file GlobalMuonRefitter.cc.

References alongMomentum, MuonSubdetId::CSC, MuonSubdetId::DT, i, LogTrace, mag(), DetId::Muon, MuonSubdetId::RPC, relativeConstraints::station, CSCDetId::station(), DTChamberId::station(), theCategory, theCSCRecHits, and theDTRecHits.

Referenced by refit().

                                                                   {

  LogTrace(theCategory) << " GlobalMuonRefitter::checkMuonHits " << endl;

  float coneSize = 20.0;
  int dethits[4];
  for ( int i=0; i<4; i++ ) hits[i]=dethits[i]=0;

  // loop through all muon hits and calculate the maximum # of hits in each chamber
  for (ConstRecHitContainer::const_iterator imrh = all.begin(); imrh != all.end(); imrh++ ) {
        
    if ( (*imrh != 0 ) && !(*imrh)->isValid() ) continue;
  
    int station = 0;
    int detRecHits = 0;
    MuonRecHitContainer dRecHits;
      
    DetId id = (*imrh)->geographicalId();

    // Skip tracker hits
    if (id.det()!=DetId::Muon) continue;

    if ( id.subdetId() == MuonSubdetId::DT ) {
      DTChamberId did(id.rawId());
      DTLayerId lid(id.rawId());
      station = did.station();

      // Get the 1d DT RechHits from this layer
      DTRecHitCollection::range dRecHits = theDTRecHits->get(lid);

      for (DTRecHitCollection::const_iterator ir = dRecHits.first; ir != dRecHits.second; ir++ ) {
        double rhitDistance = fabs(ir->localPosition().x()-(**imrh).localPosition().x());
        if ( rhitDistance < coneSize ) detRecHits++;
        LogTrace(theCategory)   << "       " << (ir)->localPosition() << "  " << (**imrh).localPosition()
               << " Distance: " << rhitDistance << " recHits: " << detRecHits << endl;
      }
    }// end of if DT
    else if ( id.subdetId() == MuonSubdetId::CSC ) {
    
      CSCDetId did(id.rawId());
      station = did.station();

      // Get the CSC Rechits from this layer
      CSCRecHit2DCollection::range dRecHits = theCSCRecHits->get(did);      

      for (CSCRecHit2DCollection::const_iterator ir = dRecHits.first; ir != dRecHits.second; ir++ ) {
        double rhitDistance = (ir->localPosition()-(**imrh).localPosition()).mag();
        if ( rhitDistance < coneSize ) detRecHits++;
        LogTrace(theCategory)   << ir->localPosition() << "  " << (**imrh).localPosition()
               << " Distance: " << rhitDistance << " recHits: " << detRecHits << endl;
      }
    }
    else {
      if ( id.subdetId() != MuonSubdetId::RPC ) LogError(theCategory)<<" Wrong Hit Type ";
      continue;      
    }
      
    if ( (station > 0) && (station < 5) ) {
      if ( detRecHits > hits[station-1] ) hits[station-1] = detRecHits;
    }

  } // end of loop over muon rechits

  for ( int i = 0; i < 4; i++ ) 
    LogTrace(theCategory) <<" Station "<<i+1<<": "<<hits[i]<<" "<<dethits[i] <<endl; 

  LogTrace(theCategory) << "CheckMuonHits: "<<all.size();

  // check order of muon measurements
  if ( (all.size() > 1) &&
       ( all.front()->globalPosition().mag() >
         all.back()->globalPosition().mag() ) ) {
    LogTrace(theCategory)<< "reverse order: ";
    stable_sort(all.begin(),all.end(),RecHitLessByDet(alongMomentum));
  }
}
GlobalMuonRefitter::RefitDirection GlobalMuonRefitter::checkRecHitsOrdering ( const ConstRecHitContainer recHits) const [protected]

Definition at line 496 of file GlobalMuonRefitter.cc.

References insideOut, outsideIn, theCategory, and undetermined.

Referenced by transform().

                                                                                                         {

  if (!recHits.empty()){
    ConstRecHitContainer::const_iterator frontHit = recHits.begin();
    ConstRecHitContainer::const_iterator backHit  = recHits.end() - 1;
    while( !(*frontHit)->isValid() && frontHit != backHit) {frontHit++;}
    while( !(*backHit)->isValid() && backHit != frontHit)  {backHit--;}

    double rFirst = (*frontHit)->globalPosition().mag();
    double rLast  = (*backHit) ->globalPosition().mag();

    if(rFirst < rLast) return insideOut;
    else if(rFirst > rLast) return outsideIn;
    else {
      LogError(theCategory) << "Impossible determine the rechits order" <<endl;
      return undetermined;
    }
  } else {
    LogError(theCategory) << "Impossible determine the rechits order" <<endl;
    return undetermined;
  }
}
void GlobalMuonRefitter::getFirstHits ( const reco::Track muon,
ConstRecHitContainer all,
ConstRecHitContainer first 
) const [protected]

get the RecHits in the tracker and the first muon chamber with hits

Definition at line 347 of file GlobalMuonRefitter.cc.

References MuonSubdetId::CSC, CSCDetId, MuonSubdetId::DT, DTChamberId, i, LogTrace, DetId::Muon, DetId::rawId(), MuonSubdetId::RPC, RPCDetId, relativeConstraints::station, and theCategory.

Referenced by refit().

                                                                          {

  LogTrace(theCategory) << " GlobalMuonRefitter::getFirstHits\nall rechits length:" << all.size() << endl;
  first.clear();

  int station_to_keep = 999;
  vector<int> stations;
  for (ConstRecHitContainer::const_iterator ihit = all.begin(); ihit != all.end(); ++ihit) {
  
    int station = 0;
    bool use_it = true;
    DetId id = (*ihit)->geographicalId();
    unsigned raw_id = id.rawId();
    if (!(*ihit)->isValid()) station = -1;
      else {
        if (id.det() == DetId::Muon) {
          switch (id.subdetId()) {
          case MuonSubdetId::DT:  station = DTChamberId(raw_id).station(); break;
          case MuonSubdetId::CSC: station = CSCDetId(raw_id).station(); break;
          case MuonSubdetId::RPC: station = RPCDetId(raw_id).station(); use_it = false; break;
          }
        }
      }

    if (use_it && station > 0 && station < station_to_keep) station_to_keep = station;
    stations.push_back(station);

    LogTrace(theCategory) << "rawId: " << raw_id << " station = " << station << " station_to_keep is now " << station_to_keep;
  }

  if (station_to_keep <= 0 || station_to_keep > 4 || stations.size() != all.size())
    LogInfo(theCategory) << "failed to getFirstHits (all muon hits are outliers/bad ?)! station_to_keep = " 
                            << station_to_keep << " stations.size " << stations.size() << " all.size " << all.size();

  for (unsigned i = 0; i < stations.size(); ++i)
    if (stations[i] >= 0 && stations[i] <= station_to_keep) first.push_back(all[i]);

  return;
}
GlobalMuonRefitter::ConstRecHitContainer GlobalMuonRefitter::getRidOfSelectStationHits ( ConstRecHitContainer  hits) const

Definition at line 673 of file GlobalMuonRefitter.cc.

References MuonSubdetId::CSC, PXFDetId::disk(), MuonSubdetId::DT, TIBDetId::layer(), TOBDetId::layer(), PXBDetId::layer(), DetId::Muon, PXB, PXF, python::entryComment::results, MuonSubdetId::RPC, relativeConstraints::station, RPCDetId::station(), DTChamberId::station(), CSCDetId::station(), TEC, theSkipStation, theTrackerSkipSection, theTrackerSkipSystem, TIB, TID, TOB, DetId::Tracker, TIDDetId::wheel(), DTChamberId::wheel(), and TECDetId::wheel().

Referenced by refit().

{
  ConstRecHitContainer results;
  ConstRecHitContainer::const_iterator it = hits.begin();
  for (; it!=hits.end(); it++) {

    DetId id = (*it)->geographicalId();

    //Check that this is a Muon hit that we're toying with -- else pass on this because the hacker is a moron / not careful

    if (id.det() == DetId::Tracker && theTrackerSkipSystem > 0) {
      int layer = -999;
      int disk  = -999;
      int wheel = -999;
      if ( id.subdetId() == theTrackerSkipSystem){
        //                              continue;  //caveat that just removes the whole system from refitting

        if (theTrackerSkipSystem == PXB) {
          PXBDetId did(id.rawId());
          layer = did.layer();
        }
        if (theTrackerSkipSystem == TIB) {
          TIBDetId did(id.rawId());
          layer = did.layer();
        }

        if (theTrackerSkipSystem == TOB) {
          TOBDetId did(id.rawId());
          layer = did.layer();
        }
        if (theTrackerSkipSystem == PXF) {
          PXFDetId did(id.rawId());
          disk = did.disk();
        }
        if (theTrackerSkipSystem == TID) {
          TIDDetId did(id.rawId());
          wheel = did.wheel();
        }
        if (theTrackerSkipSystem == TEC) {
          TECDetId did(id.rawId());
          wheel = did.wheel();
        }
        if (theTrackerSkipSection >= 0 && layer == theTrackerSkipSection) continue;
        if (theTrackerSkipSection >= 0 && disk == theTrackerSkipSection) continue;
        if (theTrackerSkipSection >= 0 && wheel == theTrackerSkipSection) continue;
      }
    }

    if (id.det() == DetId::Muon && theSkipStation) {
      int station = -999;
      int wheel = -999;
      if ( id.subdetId() == MuonSubdetId::DT ) {
        DTChamberId did(id.rawId());
        station = did.station();
        wheel = did.wheel();
      } else if ( id.subdetId() == MuonSubdetId::CSC ) {
        CSCDetId did(id.rawId());
        station = did.station();
      } else if ( id.subdetId() == MuonSubdetId::RPC ) {
        RPCDetId rpcid(id.rawId());
        station = rpcid.station();
      }
      if(station == theSkipStation) continue;
    }
    results.push_back(*it);
  }
  return results;
}
void GlobalMuonRefitter::printHits ( const ConstRecHitContainer hits) const [protected]

print all RecHits of a trajectory

Definition at line 469 of file GlobalMuonRefitter.cc.

References LogTrace, pos, mathSSE::sqrt(), theCategory, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by transform().

                                                                         {

  LogTrace(theCategory) << "Used RecHits: " << hits.size();
  for (ConstRecHitContainer::const_iterator ir = hits.begin(); ir != hits.end(); ir++ ) {
    if ( !(*ir)->isValid() ) {
      LogTrace(theCategory) << "invalid RecHit";
      continue; 
    }
    
    const GlobalPoint& pos = (*ir)->globalPosition();
    
    LogTrace(theCategory) 
      << "r = " << sqrt(pos.x() * pos.x() + pos.y() * pos.y())
      << "  z = " << pos.z()
      << "  dimension = " << (*ir)->dimension()
      << "  det = " << (*ir)->det()->geographicalId().det()
      << "  subdet = " << (*ir)->det()->subDetector()
      << "  raw id = " << (*ir)->det()->geographicalId().rawId();
  }

}
vector< Trajectory > GlobalMuonRefitter::refit ( const reco::Track globalTrack,
const reco::TransientTrack  track,
TransientTrackingRecHit::ConstRecHitContainer  allRecHitsTemp,
const int  theMuonHitsOption 
) const

build combined trajectory from subset of sta Track and tracker RecHits

Definition at line 181 of file GlobalMuonRefitter.cc.

References alongMomentum, checkMuonHits(), DynamicTruncation::filter(), getFirstHits(), getRidOfSelectStationHits(), LogTrace, reco::TrackBase::pt(), selectMuonHits(), DynamicTruncation::setThr(), theCategory, theEvent, theService, and transform().

                                                                                {

  // MuonHitsOption: 0 - tracker only
  //                 1 - include all muon hits
  //                 2 - include only first muon hit(s)
  //                 3 - include only selected muon hits
  //                 4 - redo pattern recognition with dynamic truncation

  vector<int> stationHits(4,0);

  ConstRecHitContainer allRecHits; // all muon rechits
  ConstRecHitContainer fmsRecHits; // only first muon rechits
  ConstRecHitContainer selectedRecHits; // selected muon rechits
  ConstRecHitContainer DYTRecHits; // rec hits from dynamic truncation algorithm

   LogTrace(theCategory) << " *** GlobalMuonRefitter *** option " << theMuonHitsOption << endl;

   LogTrace(theCategory) << " Track momentum before refit: " << globalTrack.pt() << endl;

  LogTrace(theCategory) << " Hits size before : " << allRecHitsTemp.size() << endl;
  allRecHits = getRidOfSelectStationHits(allRecHitsTemp);  
  //    printHits(allRecHits);
  LogTrace(theCategory) << " Hits size: " << allRecHits.size() << endl;

  vector <Trajectory> outputTraj;

  if ((theMuonHitsOption == 1) || (theMuonHitsOption == 3) || (theMuonHitsOption == 4) ) {
    // refit the full track with all muon hits
    vector <Trajectory> globalTraj = transform(globalTrack, track, allRecHits);

    if (!globalTraj.size()) {
      LogTrace(theCategory) << "No trajectory from the TrackTransformer!" << endl;
      return vector<Trajectory>();
    }

    LogTrace(theCategory) << " Initial trajectory state: " 
                          << globalTraj.front().lastMeasurement().updatedState().freeState()->parameters() << endl;
  
    if (theMuonHitsOption == 1 )
      outputTraj.push_back(globalTraj.front());
    
    if (theMuonHitsOption == 3 ) {
      checkMuonHits(globalTrack, allRecHits, stationHits);
      selectedRecHits = selectMuonHits(globalTraj.front(),stationHits);
      LogTrace(theCategory) << " Selected hits size: " << selectedRecHits.size() << endl;  
      outputTraj = transform(globalTrack, track, selectedRecHits);
    }     

    if (theMuonHitsOption == 4 ) {
      // here we use the single thr per subdetector (better performance can be obtained using thr as function of eta)
        
      DynamicTruncation dytRefit(*theEvent,*theService);
      dytRefit.setThr(30,15);                                
      //dytRefit.setThr(20,20,20,20,20,15,15,15,15,15,15,15,15);
      DYTRecHits = dytRefit.filter(globalTraj.front());
      if ((DYTRecHits.size() > 1) && (DYTRecHits.front()->globalPosition().mag() > DYTRecHits.back()->globalPosition().mag()))
        stable_sort(DYTRecHits.begin(),DYTRecHits.end(),RecHitLessByDet(alongMomentum));
      outputTraj = transform(globalTrack, track, DYTRecHits);
    }

  } else if (theMuonHitsOption == 2 )  {
      getFirstHits(globalTrack, allRecHits, fmsRecHits);
      outputTraj = transform(globalTrack, track, fmsRecHits);
    } 


  if (outputTraj.size()) {
    LogTrace(theCategory) << "Refitted pt: " << outputTraj.front().firstMeasurement().updatedState().globalParameters().momentum().perp() << endl;
    return outputTraj;
  } else {
    LogTrace(theCategory) << "No refitted Tracks... " << endl;
    return vector<Trajectory>();
  }
  
}
vector< Trajectory > GlobalMuonRefitter::refit ( const reco::Track globalTrack,
const int  theMuonHitsOption 
) const

build combined trajectory from sta Track and tracker RecHits

Definition at line 154 of file GlobalMuonRefitter.cc.

References LogTrace, DetId::Muon, theCategory, theMuonRecHitBuilder, theRPCInTheFit, theService, theTrackerRecHitBuilder, ExpressReco_HICollisions_FallBack::track, and align::Tracker.

Referenced by GlobalTrajectoryBuilderBase::build(), and GlobalTrackQualityProducer::produce().

                                                                                {
  LogTrace(theCategory) << " *** GlobalMuonRefitter *** option " << theMuonHitsOption << endl;
    
  ConstRecHitContainer allRecHitsTemp; // all muon rechits temp

  reco::TransientTrack track(globalTrack,&*(theService->magneticField()),theService->trackingGeometry());
  
  for (trackingRecHit_iterator hit = track.recHitsBegin(); hit != track.recHitsEnd(); ++hit)
    if ((*hit)->isValid()) {
      if ((*hit)->geographicalId().det() == DetId::Tracker)
        allRecHitsTemp.push_back(theTrackerRecHitBuilder->build(&**hit));
      else if ((*hit)->geographicalId().det() == DetId::Muon) {
        if ((*hit)->geographicalId().subdetId() == 3 && !theRPCInTheFit) {
          LogTrace(theCategory) << "RPC Rec Hit discarged"; 
          continue;
        }
        allRecHitsTemp.push_back(theMuonRecHitBuilder->build(&**hit));
      }
    }  
  vector<Trajectory> refitted = refit(globalTrack,track,allRecHitsTemp,theMuonHitsOption);
  return refitted;
}
GlobalMuonRefitter::ConstRecHitContainer GlobalMuonRefitter::selectMuonHits ( const Trajectory traj,
const std::vector< int > &  hits 
) const [protected]

select muon hits compatible with trajectory; check hits in chambers with showers

Definition at line 395 of file GlobalMuonRefitter.cc.

References keep, LogTrace, Trajectory::measurements(), DetId::Muon, relativeConstraints::station, RPCDetId::station(), DTChamberId::station(), CSCDetId::station(), theCategory, theCSCChi2Cut, theDTChi2Cut, theHitThreshold, theRPCChi2Cut, and crabWrap::threshold.

Referenced by refit().

                                                                     {

  ConstRecHitContainer muonRecHits;
  const double globalChi2Cut = 200.0;

  vector<TrajectoryMeasurement> muonMeasurements = traj.measurements(); 

  // loop through all muon hits and skip hits with bad chi2 in chambers with high occupancy      
  for (std::vector<TrajectoryMeasurement>::const_iterator im = muonMeasurements.begin(); im != muonMeasurements.end(); im++ ) {

    if ( !(*im).recHit()->isValid() ) continue;
    if ( (*im).recHit()->det()->geographicalId().det() != DetId::Muon ) {
      //      if ( ( chi2ndf < globalChi2Cut ) )
      muonRecHits.push_back((*im).recHit());
      continue;
    }  
    ConstMuonRecHitPointer immrh = dynamic_cast<const MuonTransientTrackingRecHit*>((*im).recHit().get());

    DetId id = immrh->geographicalId();
    int station = 0;
    int threshold = 0;
    double chi2Cut = 0.0;

    // get station of hit if it is in DT
    if ( (*immrh).isDT() ) {
      DTChamberId did(id.rawId());
      station = did.station();
      threshold = theHitThreshold;
      chi2Cut = theDTChi2Cut;
    }
    // get station of hit if it is in CSC
    else if ( (*immrh).isCSC() ) {
      CSCDetId did(id.rawId());
      station = did.station();
      threshold = theHitThreshold;
      chi2Cut = theCSCChi2Cut;
    }
    // get station of hit if it is in RPC
    else if ( (*immrh).isRPC() ) {
      RPCDetId rpcid(id.rawId());
      station = rpcid.station();
      threshold = theHitThreshold;
      chi2Cut = theRPCChi2Cut;
    }
    else
      continue;

    double chi2ndf = (*im).estimate()/(*im).recHit()->dimension();  

    bool keep = true;
    if ( (station>0) && (station<5) ) {
      if (hits[station-1]>threshold) keep = false;
    }   
    
    if ( (keep || (chi2ndf<chi2Cut)) && (chi2ndf<globalChi2Cut) ) {
      muonRecHits.push_back((*im).recHit());
    } else {
      LogTrace(theCategory)
        << "Skip hit: " << id.det() << " " << station << ", " 
        << chi2ndf << " (" << chi2Cut << " chi2 threshold) " 
        << hits[station-1] << endl;
    }
  }
  
  // check order of rechits
  reverse(muonRecHits.begin(),muonRecHits.end());
  return muonRecHits;
}
const MuonServiceProxy* GlobalMuonRefitter::service ( ) const [inline, protected]

Definition at line 111 of file GlobalMuonRefitter.h.

References theService.

{ return theService; }
void GlobalMuonRefitter::setEvent ( const edm::Event event) [virtual]

pass the Event to the algo at each event

Definition at line 129 of file GlobalMuonRefitter.cc.

References event(), theCSCRecHitLabel, theCSCRecHits, theDTRecHitLabel, theDTRecHits, and theEvent.

Referenced by GlobalTrackQualityProducer::produce(), and GlobalTrajectoryBuilderBase::setEvent().

                                                       {

  theEvent = &event;
  event.getByLabel(theDTRecHitLabel, theDTRecHits);
  event.getByLabel(theCSCRecHitLabel, theCSCRecHits);
}
void GlobalMuonRefitter::setServices ( const edm::EventSetup setup)
vector< Trajectory > GlobalMuonRefitter::transform ( const reco::Track newTrack,
const reco::TransientTrack  track,
TransientTrackingRecHit::ConstRecHitContainer  recHitsForReFit 
) const

refit the track with a new set of RecHits

Definition at line 523 of file GlobalMuonRefitter.cc.

References alongMomentum, PV3DBase< T, PVType, FrameType >::basicVector(), checkRecHitsOrdering(), TrajectoryStateOnSurface::globalMomentum(), TrajectoryStateOnSurface::globalPosition(), reco::Track::innerDetId(), reco::TransientTrack::innermostMeasurementState(), insideOut, LogDebug, LogTrace, PV3DBase< T, PVType, FrameType >::mag(), oppositeToMomentum, reco::Track::outerDetId(), reco::TransientTrack::outermostMeasurementState(), outsideIn, printHits(), theCategory, theCosmicFlag, theFitter, thePropagatorName, theRefitDirection, and theService.

Referenced by refit().

                                                                                                                    {

  LogTrace(theCategory) << "GlobalMuonRefitter::transform: " << recHitsForReFit.size() << " hits:";
  printHits(recHitsForReFit);

  if(recHitsForReFit.size() < 2) return vector<Trajectory>();

  // Check the order of the rechits
  RefitDirection recHitsOrder = checkRecHitsOrdering(recHitsForReFit);

  LogTrace(theCategory) << "checkRecHitsOrdering() returned " << recHitsOrder
                        << ", theRefitDirection is " << theRefitDirection
                        << " (insideOut == " << insideOut << ", outsideIn == " << outsideIn << ")";

  // Reverse the order in the case of inconsistency between the fit direction and the rechit order
  if(theRefitDirection != recHitsOrder) reverse(recHitsForReFit.begin(),recHitsForReFit.end());

  // Even though we checked the rechits' ordering above, we may have
  // already flipped them elsewhere (getFirstHits() is such a
  // culprit). Use the global positions of the states and the desired
  // refit direction to find the starting TSOS.
  TrajectoryStateOnSurface firstTSOS, lastTSOS;
  unsigned int innerId, outerId;
  bool order_swapped = track.outermostMeasurementState().globalPosition().mag() < track.innermostMeasurementState().globalPosition().mag();
  bool inner_is_first;
  LogTrace(theCategory) << "order swapped? " << order_swapped;

  // Fill the starting state, depending on the ordering above.
  if ((theRefitDirection == insideOut && !order_swapped) || (theRefitDirection == outsideIn && order_swapped)) {
    innerId   = newTrack.innerDetId();
    outerId   = newTrack.outerDetId();
    firstTSOS = track.innermostMeasurementState();
    lastTSOS  = track.outermostMeasurementState();
    inner_is_first = true;
  }
  else {
    innerId   = newTrack.outerDetId();
    outerId   = newTrack.innerDetId();
    firstTSOS = track.outermostMeasurementState();
    lastTSOS  = track.innermostMeasurementState();
    inner_is_first = false;
  } 

  LogTrace(theCategory) << "firstTSOS: inner_is_first? " << inner_is_first
                        << " globalPosition is " << firstTSOS.globalPosition()
                        << " innerId is " << innerId;

  if(!firstTSOS.isValid()){
    LogWarning(theCategory) << "Error wrong initial state!" << endl;
    return vector<Trajectory>();
  }

  firstTSOS.rescaleError(1000.);

  // This is the only way to get a TrajectorySeed with settable propagation direction
  PTrajectoryStateOnDet garbage1;
  edm::OwnVector<TrackingRecHit> garbage2;
  PropagationDirection propDir = 
    (firstTSOS.globalPosition().basicVector().dot(firstTSOS.globalMomentum().basicVector())>0) ? alongMomentum : oppositeToMomentum;

  // These lines cause the code to ignore completely what was set
  // above, and force propDir for tracks from collisions!
//  if(propDir == alongMomentum && theRefitDirection == outsideIn)  propDir=oppositeToMomentum;
//  if(propDir == oppositeToMomentum && theRefitDirection == insideOut) propDir=alongMomentum;

  const TrajectoryStateOnSurface& tsosForDir = inner_is_first ? lastTSOS : firstTSOS;
  propDir = (tsosForDir.globalPosition().basicVector().dot(tsosForDir.globalMomentum().basicVector())>0) ? alongMomentum : oppositeToMomentum;
  LogTrace(theCategory) << "propDir based on firstTSOS x dot p is " << propDir
                        << " (alongMomentum == " << alongMomentum << ", oppositeToMomentum == " << oppositeToMomentum << ")";

  // Additional propagation diretcion determination logic for cosmic muons
  if (theCosmicFlag) {
    PropagationDirection propDir_first = (firstTSOS.globalPosition().basicVector().dot(firstTSOS.globalMomentum().basicVector()) > 0) ? alongMomentum : oppositeToMomentum;
    PropagationDirection propDir_last  = (lastTSOS .globalPosition().basicVector().dot(lastTSOS .globalMomentum().basicVector()) > 0) ? alongMomentum : oppositeToMomentum;
    LogTrace(theCategory) << "propDir_first " << propDir_first << ", propdir_last " << propDir_last
                          << " : they " << (propDir_first == propDir_last ? "agree" : "disagree");

    int y_count = 0;
    for (TransientTrackingRecHit::ConstRecHitContainer::const_iterator it = recHitsForReFit.begin(); it != recHitsForReFit.end(); ++it) {
      if ((*it)->globalPosition().y() > 0) ++y_count;
      else --y_count;
    }
    
    PropagationDirection propDir_ycount = alongMomentum;
    if (y_count > 0) {
      if      (theRefitDirection == insideOut) propDir_ycount = oppositeToMomentum;
      else if (theRefitDirection == outsideIn) propDir_ycount = alongMomentum;
    }
    else {
      if      (theRefitDirection == insideOut) propDir_ycount = alongMomentum;
      else if (theRefitDirection == outsideIn) propDir_ycount = oppositeToMomentum;
    }
    
    LogTrace(theCategory) << "y_count = " << y_count
                          << "; based on geometrically-outermost TSOS, propDir is " << propDir << ": "
                          << (propDir == propDir_ycount ? "agrees" : "disagrees")
                          << " with ycount determination";
    
    if (propDir_first != propDir_last) {
      LogTrace(theCategory) << "since first/last disagreed, using y_count propDir";
      propDir = propDir_ycount;
    }
  }

  TrajectorySeed seed(garbage1,garbage2,propDir);

  if(recHitsForReFit.front()->geographicalId() != DetId(innerId)){
    LogDebug(theCategory)<<"Propagation occured"<<endl;
    LogTrace(theCategory) << "propagating firstTSOS at " << firstTSOS.globalPosition()
                          << " to first rechit with surface pos " << recHitsForReFit.front()->det()->surface().toGlobal(LocalPoint(0,0,0));
    firstTSOS = theService->propagator(thePropagatorName)->propagate(firstTSOS, recHitsForReFit.front()->det()->surface());
    if(!firstTSOS.isValid()){
      LogDebug(theCategory)<<"Propagation error!"<<endl;
      return vector<Trajectory>();
    }
  }

/*  
  cout << " GlobalMuonRefitter : theFitter " << propDir << endl;
  cout << "                      First TSOS: " 
       << firstTSOS.globalPosition() << "  p="
       << firstTSOS.globalMomentum() << " = "
       << firstTSOS.globalMomentum().mag() << endl;
       
  cout << "                      Starting seed: "
       << " nHits= " << seed.nHits()
       << " tsos: "
       << seed.startingState().parameters().position() << "  p="
       << seed.startingState().parameters().momentum() << endl;
       
  cout << "                      RecHits: "
       << recHitsForReFit.size() << endl;
*/
       
  vector<Trajectory> trajectories = theFitter->fit(seed,recHitsForReFit,firstTSOS);
  
  if(trajectories.empty()){
    LogDebug(theCategory) << "No Track refitted!" << endl;
    return vector<Trajectory>();
  }
  
  return trajectories;
}

Member Data Documentation

unsigned long long GlobalMuonRefitter::theCacheId_TRH [private]

Definition at line 137 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and setServices().

std::string GlobalMuonRefitter::theCategory [protected]

Definition at line 126 of file GlobalMuonRefitter.h.

Referenced by transform().

Definition at line 124 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and selectMuonHits().

Definition at line 129 of file GlobalMuonRefitter.h.

Referenced by setEvent().

Definition at line 131 of file GlobalMuonRefitter.h.

Referenced by checkMuonHits(), and setEvent().

Definition at line 123 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and selectMuonHits().

Definition at line 128 of file GlobalMuonRefitter.h.

Referenced by setEvent().

Definition at line 130 of file GlobalMuonRefitter.h.

Referenced by checkMuonHits(), and setEvent().

Definition at line 155 of file GlobalMuonRefitter.h.

Referenced by refit(), and setEvent().

Definition at line 146 of file GlobalMuonRefitter.h.

Referenced by setServices(), and transform().

std::string GlobalMuonRefitter::theFitterName [private]

Definition at line 145 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and setServices().

Definition at line 122 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and selectMuonHits().

Definition at line 120 of file GlobalMuonRefitter.h.

Definition at line 152 of file GlobalMuonRefitter.h.

Referenced by refit(), and setServices().

Definition at line 151 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and setServices().

Definition at line 121 of file GlobalMuonRefitter.h.

Definition at line 139 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and transform().

float GlobalMuonRefitter::thePtCut [protected]

Definition at line 116 of file GlobalMuonRefitter.h.

Definition at line 143 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and transform().

Definition at line 125 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and selectMuonHits().

Definition at line 141 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and refit().

Definition at line 154 of file GlobalMuonRefitter.h.

Referenced by refit(), service(), setServices(), and transform().

Definition at line 133 of file GlobalMuonRefitter.h.

Referenced by getRidOfSelectStationHits(), and GlobalMuonRefitter().

Definition at line 115 of file GlobalMuonRefitter.h.

Definition at line 149 of file GlobalMuonRefitter.h.

Referenced by refit(), and setServices().

Definition at line 148 of file GlobalMuonRefitter.h.

Referenced by GlobalMuonRefitter(), and setServices().

Definition at line 135 of file GlobalMuonRefitter.h.

Referenced by getRidOfSelectStationHits(), and GlobalMuonRefitter().

Definition at line 134 of file GlobalMuonRefitter.h.

Referenced by getRidOfSelectStationHits(), and GlobalMuonRefitter().