DTRecHitBaseAlgo Class Reference

#include <DTRecHitBaseAlgo.h>

Inheritance diagram for DTRecHitBaseAlgo:

Public Member Functions
virtual bool	compute (const DTLayer *layer, const DTDigi &digi, LocalPoint &leftPoint, LocalPoint &rightPoint, LocalError &error) const =0
virtual bool	compute (const DTLayer *layer, const DTRecHit1D &recHit1D, const float &angle, DTRecHit1D &newHit1D) const =0
virtual bool	compute (const DTLayer *layer, const DTRecHit1D &recHit1D, const float &angle, const GlobalPoint &globPos, DTRecHit1D &newHit1D) const =0
	DTRecHitBaseAlgo (const edm::ParameterSet &config)
	Constructor. More...
virtual edm::OwnVector < DTRecHit1DPair >	reconstruct (const DTLayer *layer, const DTLayerId &layerId, const DTDigiCollection::Range &digiRange)
	Build all hits in the range associated to the layerId, at the 1st step. More...
virtual void	setES (const edm::EventSetup &setup)=0
	Pass the Event Setup to the algo at each event. More...
virtual	~DTRecHitBaseAlgo ()
	Destructor. More...

Protected Attributes
DTTTrigBaseSync *	theSync

Detailed Description

Abstract algorithmic class to compute drift distance and error form a DT digi

Author

N. Amapane & G. Cerminara - INFN Torino

Definition at line 33 of file DTRecHitBaseAlgo.h.

Constructor & Destructor Documentation

DTRecHitBaseAlgo::DTRecHitBaseAlgo

(

const edm::ParameterSet &

config

)

Constructor.

Definition at line 19 of file DTRecHitBaseAlgo.cc.

References reco::get(), and edm::ParameterSet::getParameter().

                                                             {
  theSync = DTTTrigSyncFactory::get()->create(config.getParameter<string>("tTrigMode"),
                          config.getParameter<ParameterSet>("tTrigModeConfig"));
}

DTRecHitBaseAlgo::~DTRecHitBaseAlgo ( )

virtual

Destructor.

Definition at line 24 of file DTRecHitBaseAlgo.cc.

{}

Member Function Documentation

virtual bool DTRecHitBaseAlgo::compute ( const DTLayer *  layer, const DTDigi &  digi, LocalPoint &  leftPoint, LocalPoint &  rightPoint, LocalError &  error  ) const

pure virtual

First step in computation of Left/Right hits from a Digi. The results are the local position (in MuBarLayer frame) of the Left and Right hit, and the error (which is common). Returns false on failure.

Implemented in DTNoDriftAlgo, DTLinearDriftFromDBAlgo, DTParametrizedDriftAlgo, and DTLinearDriftAlgo.

Referenced by DTSegmentUpdator::updateHits().

virtual bool DTRecHitBaseAlgo::compute ( const DTLayer *  layer, const DTRecHit1D &  recHit1D, const float &  angle, DTRecHit1D &  newHit1D  ) const

pure virtual

Second step in hit position computation, for algorithms which support it. The impact angle is given as input, and it's used to improve the hit position (and relative error). The angle is defined in radians, with respect to the perpendicular to the layer plane. Given the local direction, angle=atan(dir.x()/-dir.z()) . This can be used when a SL segment is built, so the impact angle is known but the position along wire is not.

Implemented in DTNoDriftAlgo, DTParametrizedDriftAlgo, DTLinearDriftFromDBAlgo, and DTLinearDriftAlgo.

virtual bool DTRecHitBaseAlgo::compute ( const DTLayer *  layer, const DTRecHit1D &  recHit1D, const float &  angle, const GlobalPoint &  globPos, DTRecHit1D &  newHit1D  ) const

pure virtual

Third (and final) step in hits position computation, for algorithms which support it. In addition the the angle, also the global position of the hit is given as input. This allows to get the magnetic field at the hit position (and not only that at the center of the wire). Also the position along the wire is available and can be used to correct the drift time for particle TOF and propagation of signal along the wire.

Implemented in DTNoDriftAlgo, DTParametrizedDriftAlgo, DTLinearDriftFromDBAlgo, and DTLinearDriftAlgo.

OwnVector< DTRecHit1DPair > DTRecHitBaseAlgo::reconstruct ( const DTLayer *  layer, const DTLayerId &  layerId, const DTDigiCollection::Range &  digiRange  )

virtual

Build all hits in the range associated to the layerId, at the 1st step.

Reimplemented in DTNoDriftAlgo.

Definition at line 28 of file DTRecHitBaseAlgo.cc.

References bookConverter::compute(), DTEnums::Left, edm::OwnVector< T, P >::push_back(), mps_fire::result, DTEnums::Right, and DTRecHit1DPair::setPositionAndError().

Referenced by DTRecHitProducer::produce().

                                                                    {
  OwnVector<DTRecHit1DPair> result; 

  // Loop over all digis in the given range
  for (DTDigiCollection::const_iterator digi = digiRange.first;
       digi != digiRange.second;
       digi++) {
    // Get the wireId
    DTWireId wireId(layerId, (*digi).wire());
    
    LocalError tmpErr;
    LocalPoint lpoint, rpoint;
    // Call the compute method
    bool OK = compute(layer, *digi, lpoint, rpoint, tmpErr);
    if (!OK) continue;

    // Build a new pair of 1D rechit    
    DTRecHit1DPair*  recHitPair = new DTRecHit1DPair(wireId, *digi);

    // Set the position and the error of the 1D rechits
    recHitPair->setPositionAndError(DTEnums::Left, lpoint, tmpErr);
    recHitPair->setPositionAndError(DTEnums::Right, rpoint, tmpErr);        

    result.push_back(recHitPair);
  }
  return result;
}

virtual void DTRecHitBaseAlgo::setES ( const edm::EventSetup &  setup )

pure virtual

Pass the Event Setup to the algo at each event.

Implemented in DTLinearDriftFromDBAlgo, DTNoDriftAlgo, DTLinearDriftAlgo, and DTParametrizedDriftAlgo.

Referenced by DTRecHitProducer::produce(), and DTSegmentUpdator::setES().

Member Data Documentation

DTTTrigBaseSync* DTRecHitBaseAlgo::theSync

protected

Definition at line 92 of file DTRecHitBaseAlgo.h.

Referenced by DTLinearDriftAlgo::compute(), DTLinearDriftFromDBAlgo::compute(), DTLinearDriftAlgo::setES(), and DTLinearDriftFromDBAlgo::setES().