#include <CaloDualConeSelector.h>

Public Member Functions
	CaloDualConeSelector (double dRmin, double dRmax, const CaloGeometry *geom)
	CaloDualConeSelector (double dRmin, double dRmax, const CaloGeometry *geom, DetId::Detector detector, int subdet=0)
std::auto_ptr < CaloRecHitMetaCollectionV >	select (double eta, double phi, const CaloRecHitMetaCollectionV &inputCollection)
std::auto_ptr < CaloRecHitMetaCollectionV >	select (const GlobalPoint &p, const CaloRecHitMetaCollectionV &inputCollection)
Private Attributes
double	deltaRmax_
double	deltaRmin_
DetId::Detector	detector_
const CaloGeometry *	geom_
int	subdet_

Detailed Description

Date:: 2006/08/29 12:49:10

Revision:: 1.1

Author:: J. Mans - Minnesota

Definition at line 14 of file CaloDualConeSelector.h.

Constructor & Destructor Documentation

CaloDualConeSelector::CaloDualConeSelector	(	double	dRmin,
		double	dRmax,
		const CaloGeometry *	geom
	)

Definition at line 7 of file CaloDualConeSelector.cc.

                                                                                               :
  geom_(geom),deltaRmin_(dRmin),deltaRmax_(dRmax),detector_(DetId::Detector(0)),subdet_(0) {
}

CaloDualConeSelector::CaloDualConeSelector	(	double	dRmin,
		double	dRmax,
		const CaloGeometry *	geom,
		DetId::Detector	detector,
		int	subdet = `0`
	)

Definition at line 11 of file CaloDualConeSelector.cc.

                                                                                                                                   : 
  geom_(geom),deltaRmin_(dRmin),deltaRmax_(dRmax),detector_(detector),subdet_(subdet) {
}

Member Function Documentation

std::auto_ptr< CaloRecHitMetaCollectionV > CaloDualConeSelector::select	(	double	eta,
		double	phi,
		const CaloRecHitMetaCollectionV &	inputCollection
	)

Definition at line 15 of file CaloDualConeSelector.cc.

References AlCaHLTBitMon_ParallelJobs::p.

Referenced by egammaisolation::EgammaHcalExtractor::deposit(), and EgammaHcalIsolation::getHcalSum().

                                                                                                                                            {
  GlobalPoint p(GlobalPoint::Cylindrical(1,phi,tanh(eta)));
  return select(p,inputCollection);
}

std::auto_ptr< CaloRecHitMetaCollectionV > CaloDualConeSelector::select	(	const GlobalPoint &	p,
		const CaloRecHitMetaCollectionV &	inputCollection
	)

Definition at line 20 of file CaloDualConeSelector.cc.

References CaloRecHitMetaCollectionFast::add(), trackerHits::c, deltaRmax_, deltaRmin_, detector_, CaloRecHitMetaCollectionV::end(), CaloRecHitMetaCollectionV::find(), geom_, CaloSubdetectorGeometry::getCells(), CaloGeometry::getSubdetectorGeometry(), i, j, and subdet_.

                                                                                                                                          {
  CaloRecHitMetaCollectionFast* c=new CaloRecHitMetaCollectionFast();

  // TODO: handle default setting of detector_ (loops over subdet)
  // TODO: heuristics of when it is better to loop over inputCollection instead (small # hits)
  for (int subdet=subdet_; subdet<=7 && (subdet_==0 || subdet_==subdet); subdet++) {
    const CaloSubdetectorGeometry* sdg=geom_->getSubdetectorGeometry(detector_,subdet);
    if (sdg!=0) {
      // get the list of detids within range (from geometry)
      CaloSubdetectorGeometry::DetIdSet dis_excl=sdg->getCells(p,deltaRmin_);
      CaloSubdetectorGeometry::DetIdSet dis_all=sdg->getCells(p,deltaRmax_);
      // use set operations to determine detids in annulus
      CaloSubdetectorGeometry::DetIdSet dis;
      std::set_difference(dis_all.begin(),dis_all.end(),
                          dis_excl.begin(),dis_excl.end(),
                          std::inserter(dis,dis.begin()));
      // loop over detids...
      CaloRecHitMetaCollectionV::const_iterator j,je=inputCollection.end();      

      for (CaloSubdetectorGeometry::DetIdSet::iterator i=dis.begin(); i!=dis.end(); i++) {
        if (i->subdetId()!=subdet) continue; // possible for HCAL where the same geometry object handles all the detectors
        j=inputCollection.find(*i);
        if (j!=je) c->add(&(*j));
      }
    }    
  }

  return std::auto_ptr<CaloRecHitMetaCollectionV>(c);
}