#include <GroupedDAFHitCollector.h>

Inheritance diagram for GroupedDAFHitCollector:

Public Member Functions
const MeasurementEstimator *	getEstimator () const

const Propagator *	getPropagator () const

const Propagator *	getReversePropagator () const

const SiTrackerMultiRecHitUpdator *	getUpdator () const

	GroupedDAFHitCollector (const MeasurementTracker measurementTracker, const SiTrackerMultiRecHitUpdator updator, const MeasurementEstimator est, const Propagator propagator, const Propagator *reversePropagator, bool debug)

virtual std::vector < TrajectoryMeasurement >	recHits (const Trajectory &, const MeasurementTrackerEvent *theMT) const override

virtual	~GroupedDAFHitCollector ()

Public Member Functions inherited from MultiRecHitCollector
const MeasurementTracker *	getMeasurementTracker () const

	MultiRecHitCollector (const MeasurementTracker *meas)

Private Member Functions
void	buildMultiRecHits (const std::vector< TrajectoryMeasurementGroup > &measgroup, std::vector< TrajectoryMeasurement > &result, const MeasurementTrackerEvent *&theMTE) const

Private Attributes
const bool	debug_

const MeasurementEstimator *	theEstimator

const Propagator *	thePropagator

const Propagator *	theReversePropagator

const SiTrackerMultiRecHitUpdator *	theUpdator

Detailed Description

Returns a collection of SiTrackerMultiRecHits and InvalidRecHits given a Trajectory. Builds a SiTrackerMultiRecHit for each detGroup (i.e. a group of detectors mutually exclusive for the track's crossing point)

Author: tropiano, genta in May 2014 by brondolin

Definition at line 22 of file GroupedDAFHitCollector.h.

Constructor & Destructor Documentation

GroupedDAFHitCollector::GroupedDAFHitCollector	(	const MeasurementTracker *	measurementTracker,
		const SiTrackerMultiRecHitUpdator *	updator,
		const MeasurementEstimator *	est,
		const Propagator *	propagator,
		const Propagator *	reversePropagator,
		bool	debug
	)

inlineexplicit

Definition at line 25 of file GroupedDAFHitCollector.h.

                                                                  :
         MultiRecHitCollector(measurementTracker), theUpdator(updator), 
         theEstimator(est), thePropagator(propagator), theReversePropagator(reversePropagator), debug_(debug){}

virtual GroupedDAFHitCollector::~GroupedDAFHitCollector ( )

inlinevirtual

Definition at line 34 of file GroupedDAFHitCollector.h.

34 {}

Member Function Documentation

void GroupedDAFHitCollector::buildMultiRecHits	(	const std::vector< TrajectoryMeasurementGroup > &	measgroup,
		std::vector< TrajectoryMeasurement > &	result,
		const MeasurementTrackerEvent *&	theMTE
	)		const

private

Definition at line 138 of file GroupedDAFHitCollector.cc.

References TrackingRecHit::bad, TrackingRecHit::inactive, TrajectoryStateOnSurface::isValid(), LogTrace, TrackingRecHit::missing, GloballyPositioned< T >::position(), position, and TrajectoryStateOnSurface::surface().

                                                                                                                                                                                        {
 
   unsigned int initial_size = result.size();
 
   //TransientTrackingRecHit::ConstRecHitContainer rhits;
   if (measgroup.empty()) {
     LogTrace("MultiRecHitCollector") << "No TrajectoryMeasurementGroups found for this layer\n" ; 
     //should we do something?
     //result.push_back(InvalidTransientRecHit::build(0,TrackingRecHit::missing));
     return;
   } 
 
   //we build a MultiRecHit out of each group
   //groups are sorted along momentum or opposite to momentum, 
   //measurements in groups are sorted with increating chi2
   LogTrace("MultiRecHitCollector") << "Found " << measgroup.size() << " groups for this layer";
 
   //trajectory state to store the last valid TrajectoryState (if present) to be used 
   //to add an invalid Measurement in case no valid state or no valid hits are found in any group
   for ( vector<TrajectoryMeasurementGroup>::const_iterator igroup = measgroup.begin(); 
     igroup != measgroup.end(); igroup++ ){
 
     //the TrajectoryState is the first one
     TrajectoryStateOnSurface state = igroup->measurements().front().predictedState();
     if (!state.isValid()){
       LogTrace("MultiRecHitCollector") << "Something wrong! no valid TSOS found in current group ";
       continue;     
     }
 
     LogTrace("MultiRecHitCollector") << "This group has " << igroup->measurements().size() << " measurements";
     LogTrace("MultiRecHitCollector") << "This group has the following " << igroup->detGroup().size() 
                      << " detector ids: " << endl;
     for (DetGroup::const_iterator idet = igroup->detGroup().begin(); idet != igroup->detGroup().end(); ++idet){
       LogTrace("MultiRecHitCollector") << idet->det()->geographicalId().rawId();
     }
 
     vector<const TrackingRecHit*> hits;
     for (vector<TrajectoryMeasurement>::const_iterator imeas = igroup->measurements().begin(); 
      imeas != igroup->measurements().end(); imeas++){
 
       //should be fixed!!   
       //DetId id = imeas->recHit()->geographicalId();
       //MeasurementDetWithData measDet = theMTE->idToDet(id);
 
       //collect the non missing hits to build the MultiRecHits
       //we use the recHits method; anyway only simple hits, not MultiHits should be present 
       if (imeas->recHit()->getType() != TrackingRecHit::missing) {
         LogTrace("MultiRecHitCollector") << "This hit is valid ";
         hits.push_back(imeas->recHit()->hit());
       }
       else{
         LogTrace("MultiRecHitCollector") << "     This hit is not valid and will not enter in the MRH. " ;
       }
     }
 
     if (hits.empty()){
       LogTrace("MultiRecHitCollector") << "No valid hits found in current group ";
       continue;
     }
 
     LogTrace("MultiRecHitCollector") << "The best TSOS in this group is " << state << " it lays on surface located at " << state.surface().position();
 
     LogTrace("MultiRecHitCollector") << "For the MRH on this group the following hits will be used"; 
     for (vector<const TrackingRecHit*>::iterator iter = hits.begin(); iter != hits.end(); iter++){  
       string validity = "valid";
       if ((*iter)->getType() == TrackingRecHit::missing ) validity = "missing !should not happen!";
       else if ((*iter)->getType() == TrackingRecHit::inactive) validity = "inactive";
       else if ((*iter)->getType() == TrackingRecHit::bad) validity = "bad";   
       LogTrace("MultiRecHitCollector") << "DetId " << (*iter)->geographicalId().rawId()  
                        << " validity: " << validity 
                        << " surface position " << getMeasurementTracker()->geomTracker()->idToDet((*iter)->geographicalId())->position()  
                        << " hit local position " << (*iter)->localPosition();
     }
     //should be fixed!!
     //result.push_back(TrajectoryMeasurement(state,theUpdator->buildMultiRecHit(hits, state, *MeasurementDetWithData())));
   }
     //can this happen? it means that the measgroup was not empty but no valid measurement was found inside
     //in this case we add an invalid measuremnt for this layer 
     if (result.size() == initial_size){
         LogTrace("MultiRecHitCollector") << "no valid measuremnt or no valid TSOS in none of the groups";
         //measgroup has been already checked for size != 0
         if (measgroup.back().measurements().size() != 0){   
             result.push_back(measgroup.back().measurements().back());
         } 
     }
 }

const MeasurementEstimator* GroupedDAFHitCollector::getEstimator ( ) const

inline

Definition at line 40 of file GroupedDAFHitCollector.h.

References theEstimator.

40 {return theEstimator;}

GroupedDAFHitCollector::theEstimator

const MeasurementEstimator * theEstimator

Definition: GroupedDAFHitCollector.h:50

const Propagator* GroupedDAFHitCollector::getPropagator ( ) const

inline

Definition at line 41 of file GroupedDAFHitCollector.h.

References thePropagator.

41 {return thePropagator;}

GroupedDAFHitCollector::thePropagator

const Propagator * thePropagator

Definition: GroupedDAFHitCollector.h:51

const Propagator* GroupedDAFHitCollector::getReversePropagator ( ) const

inline

Definition at line 42 of file GroupedDAFHitCollector.h.

References theReversePropagator.

42 {return theReversePropagator;}

GroupedDAFHitCollector::theReversePropagator

const Propagator * theReversePropagator

Definition: GroupedDAFHitCollector.h:52

const SiTrackerMultiRecHitUpdator* GroupedDAFHitCollector::getUpdator ( ) const

inline

Definition at line 39 of file GroupedDAFHitCollector.h.

References theUpdator.

39 {return theUpdator;}

GroupedDAFHitCollector::theUpdator

const SiTrackerMultiRecHitUpdator * theUpdator

Definition: GroupedDAFHitCollector.h:49

vector< TrajectoryMeasurement > GroupedDAFHitCollector::recHits	(	const Trajectory &	traj,
		const MeasurementTrackerEvent *	theMT
	)		const

overridevirtual

Implements MultiRecHitCollector.

Definition at line 18 of file GroupedDAFHitCollector.cc.

References alongMomentum, Trajectory::direction(), LogDebug, LogTrace, Trajectory::measurements(), mps_fire::result, and edm::second().

 {
 
   LayerMeasurements theLM (theMTE->measurementTracker(), *theMTE);
 
   //WARNING: At the moment the trajectories has the measurements with reversed sorting after the track smoothing
   const vector<TrajectoryMeasurement>& meas = traj.measurements();
   const Propagator* forwardPropagator = getPropagator();
   const Propagator* backwardPropagator = getReversePropagator();
   if (traj.direction() == alongMomentum){
     forwardPropagator = getReversePropagator();
     backwardPropagator = getPropagator(); 
   }  
   if (meas.empty()) //return TransientTrackingRecHit::ConstRecHitContainer();   
     return vector<TrajectoryMeasurement>();
 
     //groups the TrajectoryMeasurements on a layer by layer
     vector<pair<const DetLayer*, vector<TrajectoryMeasurement> > > mol;
     mol = MeasurementByLayerGrouper(getMeasurementTracker()->geometricSearchTracker())(meas);
 
     vector<TrajectoryMeasurement> result;
 
     //add a protection if all the measurement are on the same layer
     if(mol.size()<2)return vector<TrajectoryMeasurement>();
 
     //it assumes that the measurements are sorted in the smoothing direction
     //TrajectoryStateOnSurface current = (*(mol.begin()+1)).second.front().updatedState();
     TrajectoryStateOnSurface current = (*(mol.rbegin()+1)).second.back().updatedState();
     //if (current.isValid()) current.rescaleError(10);
 
     
     //protection for layers with invalid meas with no id associated
     //to be fixed
     //for the moment no hit are lookerd for in these layers
     //remind that:
     //groupedMeasurements will return at least a measurement with an invalid hit with no detid
     LogDebug("MultiRecHitCollector") << "Layer "  << mol.back().first  << " has " << mol.back().second.size() << " measurements";
         LogTrace("MultiRecHitCollector") << "Original measurements are:";
         for( unsigned int iLay = 0; iLay < mol.size(); iLay++){
           LogTrace("MultiRecHitCollector") << "  Layer "  << mol.at(iLay).first  << " has " << mol.at(iLay).second.size() << " measurements:";
           vector<TrajectoryMeasurement>::const_iterator ibeg = (mol.at(iLay)).second.begin();
           vector<TrajectoryMeasurement>::const_iterator iend = (mol.at(iLay)).second.end();
           for (vector<TrajectoryMeasurement>::const_iterator imeas = ibeg; imeas != iend; ++imeas){
             if (imeas->recHit()->isValid()){
               LogTrace("MultiRecHitCollector") << "   Valid Hit with DetId " << imeas->recHit()->geographicalId().rawId()
                         << " local position " << imeas->recHit()->hit()->localPosition()
                         << " global position " << imeas->recHit()->hit()->globalPosition() ;
             } else {
               LogTrace("MultiRecHitCollector") << "   Invalid Hit with DetId " << imeas->recHit()->geographicalId().rawId(); 
             }
           }
         }
 
     //ERICA: I have to understand how are set the TM now. REPLACE THIS PART!!
         vector<TrajectoryMeasurementGroup> groupedMeas;
     if (mol.back().first) 
       groupedMeas = theLM.groupedMeasurements(*(mol.back().first), current, 
                           *backwardPropagator, *(getEstimator()));
 
     //Since we have passed the backwardPropagator, we have to sort the detGroups in the opposite way 
     //(according the forward propagator, not the backward one)
     vector<TrajectoryMeasurementGroup> sortedgroupedMeas; 
     for (vector<TrajectoryMeasurementGroup>::reverse_iterator iter = groupedMeas.rbegin();  
          iter != groupedMeas.rend(); iter++){
 
       sortedgroupedMeas.push_back(*iter);
 
     }
 
     //for the first layer
     buildMultiRecHits(sortedgroupedMeas, result, theMTE);
         
 
     //for other layers
     current = mol.back().second.front().updatedState();
     //if (current.isValid()) current.rescaleError(10);
 
     for( vector<pair<const DetLayer*, vector<TrajectoryMeasurement> > >::reverse_iterator imol = 
           mol.rbegin() + 1; imol != mol.rend(); imol++) {
     
           const DetLayer* lay = (*imol).first;
       LogDebug("MultiRecHitCollector") << "Layer "  << lay << " has " << (*imol).second.size() << " measurements";
           //debug 
       vector<TrajectoryMeasurementGroup> currentLayerMeas;
       if (lay) { 
         currentLayerMeas = theLM.groupedMeasurements(*lay, current, *forwardPropagator, *(getEstimator()));
       }
 
       buildMultiRecHits(currentLayerMeas, result, theMTE);
       current = (*imol).second.front().updatedState();
       //if (current.isValid()) current.rescaleError(10);
     }
 
     LogTrace("MultiRecHitCollector") << " Ending GroupedDAFHitCollector::recHits >> Original Measurement size "  << meas.size() 
           << "\n                                      >> GroupedDAFHitCollector returned " << result.size() << " measurements";
     //results are sorted in the fitting direction
 
  // adding a protection against too few hits and invalid hits (due to failed propagation on the same surface of the original hits)
         if (result.size()>2)
           {
             int hitcounter=0;
             //check if the vector result has more than 3 valid hits
             for (vector<TrajectoryMeasurement>::const_iterator iimeas = result.begin(); iimeas != result.end(); ++iimeas)
             {
                 if(iimeas->recHit()->isValid()) hitcounter++;
             }
             
             if(hitcounter>2) 
             {
         return result;
         } 
             
             else return vector<TrajectoryMeasurement>();
           }
         
         else{return vector<TrajectoryMeasurement>();}
     
 }

Member Data Documentation

const bool GroupedDAFHitCollector::debug_

private

Definition at line 53 of file GroupedDAFHitCollector.h.

const MeasurementEstimator* GroupedDAFHitCollector::theEstimator

private

Definition at line 50 of file GroupedDAFHitCollector.h.

Referenced by getEstimator().

const Propagator* GroupedDAFHitCollector::thePropagator

private

Definition at line 51 of file GroupedDAFHitCollector.h.

Referenced by getPropagator().

const Propagator* GroupedDAFHitCollector::theReversePropagator

private

Definition at line 52 of file GroupedDAFHitCollector.h.

Referenced by getReversePropagator().

const SiTrackerMultiRecHitUpdator* GroupedDAFHitCollector::theUpdator

private

Definition at line 49 of file GroupedDAFHitCollector.h.

Referenced by getUpdator().

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation