genfit::MeasurementFactory< measurement_T > Class Template Reference

Factory object to create AbsMeasurement objects from digitized and clustered data. More...

#include <MeasurementFactory.h>

Public Member Functions
	MeasurementFactory ()
virtual	~MeasurementFactory ()
void	addProducer (int detID, AbsMeasurementProducer< measurement_T > *hitProd)
	Register a producer module to the factory.
void	clear ()
	Clear all hit producers.
measurement_T *	createOne (int detID, int index, const TrackCandHit *hit) const
	Create a Measurement.
std::vector< measurement_T * >	createMany (const TrackCand &cand) const
	Create a collection of Measurements.

Private Attributes
std::map< int, AbsMeasurementProducer< measurement_T > * >	hitProdMap_

Detailed Description

template<class measurement_T>
class genfit::MeasurementFactory< measurement_T >

Factory object to create AbsMeasurement objects from digitized and clustered data.

The MeasurementFactory is used to automatically fill Track objects with hit data. For each detector type that is used, one AbsMeasurementProducer has to be registered in the factory. The factory can the use the index information from a TrackCand object to load the indexed hits into the Track.

See also

AbsMeasurementProducer

TrackCand

Definition at line 51 of file MeasurementFactory.h.

Constructor & Destructor Documentation

MeasurementFactory()

template<class measurement_T >

genfit::MeasurementFactory< measurement_T >::MeasurementFactory ( )

inline

Definition at line 57 of file MeasurementFactory.h.

{};

~MeasurementFactory()

template<class measurement_T >

virtual genfit::MeasurementFactory< measurement_T >::~MeasurementFactory ( )

inlinevirtual

Definition at line 58 of file MeasurementFactory.h.

{ clear(); }

Member Function Documentation

addProducer()

template<class measurement_T >

void genfit::MeasurementFactory< measurement_T >::addProducer	(	int	detID,
		AbsMeasurementProducer< measurement_T > *	hitProd
	)

Register a producer module to the factory.

For each type of hit a separate producer is needed. The type of hit is identified by the detector ID (detID). This index corresponds to the detector ID that is stored in the TrackCand.

Definition at line 97 of file MeasurementFactory.h.

                                                                                                             {
  typename std::map<int, AbsMeasurementProducer<measurement_T>*>::iterator it = hitProdMap_.find(detID);
  if(it == hitProdMap_.end()) {
    hitProdMap_[detID] = hitProd;
  } else {
    Exception exc("MeasurementFactory: detID already in use",__LINE__,__FILE__);
    exc.setFatal();
    std::vector<double> numbers;
    numbers.push_back(detID);
    exc.setNumbers("detID",numbers);
    throw exc;
  }
}

clear()

template<class measurement_T >

void genfit::MeasurementFactory< measurement_T >::clear

(

)

Clear all hit producers.

Definition at line 112 of file MeasurementFactory.h.

                                             {
  typename std::map<int, AbsMeasurementProducer<measurement_T>*>::iterator it=hitProdMap_.begin();
  while(it!=hitProdMap_.end()){
    delete it->second;
    ++it;
  }
  hitProdMap_.clear();
}

createMany()

template<class measurement_T >

std::vector< measurement_T * > genfit::MeasurementFactory< measurement_T >::createMany

(

const TrackCand &

cand

)

const

Create a collection of Measurements.

This is the standard way to prepare the hit collection for a Track. The resulting collection can contain hits from several detectors. The order of the hits is the same as in the TrackCand. It is assumed that this order is already along the Track.

Measurements have to implement a constructor which takes the cluster object from which the Measurement is build as the only parameter.

See also

AbsMeasurementProducer

Definition at line 138 of file MeasurementFactory.h.

                                                                                                            {
  typename std::vector<measurement_T*> hitVec;
  unsigned int nHits=cand.getNHits();
  for(unsigned int i=0;i<nHits;i++) {
    int detID, index;
    const TrackCandHit* hit = cand.getHit(i);
    cand.getHit(i, detID, index);
    hitVec.push_back( MeasurementFactory<measurement_T>::createOne(hit->getDetId(), hit->getHitId(), hit) );
  }
  return hitVec;
}

createOne()

template<class measurement_T >

measurement_T * genfit::MeasurementFactory< measurement_T >::createOne	(	int	detID,
		int	index,
		const TrackCandHit *	hit
	)		const

Create a Measurement.

Measurements have to implement a Constructor which takes the cluster object from which the Measurement is build as the only parameter.

See also

AbsMeasurementProducer

Definition at line 122 of file MeasurementFactory.h.

                                                                                                               {
  typename std::map<int, AbsMeasurementProducer<measurement_T>*>::const_iterator it = hitProdMap_.find(detID);
 
  if(it != hitProdMap_.end()) {
    return it->second->produce(index, hit);
  } else {
    Exception exc("MeasurementFactory: no hitProducer for this detID available",__LINE__,__FILE__);
    exc.setFatal();
    std::vector<double> numbers;
    numbers.push_back(detID);
    exc.setNumbers("detID", numbers);
    throw exc;
  }
}

Member Data Documentation

hitProdMap_

template<class measurement_T >

std::map<int, AbsMeasurementProducer<measurement_T>*> genfit::MeasurementFactory< measurement_T >::hitProdMap_

private

Definition at line 53 of file MeasurementFactory.h.

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

• genfit/core/include/MeasurementFactory.h