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TSiStripMatchedRecHit Class Reference

#include <RecoTracker/TransientTrackingRecHit/interface/TSiStripMatchedRecHit.h>

Inheritance diagram for TSiStripMatchedRecHit:

List of all members.

Public Member Functions
virtual bool	canImproveWithTrack () const
	Returns true if the clone( const TrajectoryStateOnSurface&) method returns an improved hit, false if it returns an identical copy.
virtual RecHitPointer	clone (const TrajectoryStateOnSurface &ts) const
	Returns a copy of the hit with parameters and errors computed with respect to the TrajectoryStateOnSurface given as argument.
const GeomDetUnit *	detUnit () const
	CAUTION: the GeomDetUnit* is zero for composite hits (matched hits in the tracker, segments in the muon).
virtual void	getKfComponents (KfComponentsHolder &holder) const
virtual AlgebraicSymMatrix	parametersError () const
virtual ConstRecHitContainer	transientHits () const
	Composite interface: returns the component hits, if any.
Static Public Member Functions
static RecHitPointer	build (const GeomDet *geom, std::auto_ptr< TrackingRecHit > rh, const SiStripRecHitMatcher *matcher, const StripClusterParameterEstimator *cpe=0, float weight=1., float annealing=1.)
static RecHitPointer	build (const GeomDet *geom, const TrackingRecHit *rh, const SiStripRecHitMatcher *matcher, const StripClusterParameterEstimator *cpe=0, float weight=1., float annealing=1.)
Private Member Functions
virtual TSiStripMatchedRecHit *	clone () const
	TSiStripMatchedRecHit (const GeomDet *geom, std::auto_ptr< TrackingRecHit > rh, const SiStripRecHitMatcher *matcher, const StripClusterParameterEstimator *cpe, float weight, float annealing)
	TSiStripMatchedRecHit (const GeomDet *geom, const TrackingRecHit *rh, const SiStripRecHitMatcher *matcher, const StripClusterParameterEstimator *cpe, float weight, float annealing)
Private Attributes
const StripClusterParameterEstimator *	theCPE
const SiStripRecHitMatcher *	theMatcher

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Detailed Description

Definition at line 10 of file TSiStripMatchedRecHit.h.

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Constructor & Destructor Documentation

TSiStripMatchedRecHit::TSiStripMatchedRecHit	(	const GeomDet *	geom,
		const TrackingRecHit *	rh,
		const SiStripRecHitMatcher *	matcher,
		const StripClusterParameterEstimator *	cpe,
		float	weight,
		float	annealing
	)			[inline, private]

Definition at line 43 of file TSiStripMatchedRecHit.h.

Referenced by build(), and clone().

                                                        : 
     GenericTransientTrackingRecHit(geom, *rh, weight, annealing), theMatcher(matcher),theCPE(cpe) {}

TSiStripMatchedRecHit::TSiStripMatchedRecHit	(	const GeomDet *	geom,
		std::auto_ptr< TrackingRecHit >	rh,
		const SiStripRecHitMatcher *	matcher,
		const StripClusterParameterEstimator *	cpe,
		float	weight,
		float	annealing
	)			[inline, private]

Definition at line 49 of file TSiStripMatchedRecHit.h.

                                                        : 
    GenericTransientTrackingRecHit(geom, rh.release(), weight, annealing), theMatcher(matcher),theCPE(cpe) {}

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Member Function Documentation

static RecHitPointer TSiStripMatchedRecHit::build	(	const GeomDet *	geom,
		std::auto_ptr< TrackingRecHit >	rh,
		const SiStripRecHitMatcher *	matcher,
		const StripClusterParameterEstimator *	cpe = 0,
		float	weight = 1.,
		float	annealing = 1.
	)			[inline, static]

Definition at line 30 of file TSiStripMatchedRecHit.h.

References TSiStripMatchedRecHit(), and TransientTrackingRecHit::weight().

                                                                   {
    return RecHitPointer( new TSiStripMatchedRecHit( geom, rh, matcher,cpe,weight, annealing));
  }

static RecHitPointer TSiStripMatchedRecHit::build	(	const GeomDet *	geom,
		const TrackingRecHit *	rh,
		const SiStripRecHitMatcher *	matcher,
		const StripClusterParameterEstimator *	cpe = 0,
		float	weight = 1.,
		float	annealing = 1.
	)			[inline, static]

Definition at line 23 of file TSiStripMatchedRecHit.h.

References TSiStripMatchedRecHit(), and TransientTrackingRecHit::weight().

Referenced by TkTransientTrackingRecHitBuilder::build(), ElectronSiStripSeedGenerator::checkHitsAndTSOS(), clone(), and TkGluedMeasurementDet::recHits().

                                                                   {
    return RecHitPointer( new TSiStripMatchedRecHit( geom, rh, matcher,cpe, weight, annealing));
  }

virtual bool TSiStripMatchedRecHit::canImproveWithTrack

(

)

const [inline, virtual]

Returns true if the clone( const TrajectoryStateOnSurface&) method returns an improved hit, false if it returns an identical copy.

In order to avoid redundent copies one should call canImproveWithTrack() before calling clone( const TrajectoryStateOnSurface&).

Reimplemented from GenericTransientTrackingRecHit.

Definition at line 38 of file TSiStripMatchedRecHit.h.

References theMatcher.

{return (theMatcher != 0);}

virtual TSiStripMatchedRecHit* TSiStripMatchedRecHit::clone

(

void

)

const [inline, private, virtual]

Reimplemented from GenericTransientTrackingRecHit.

Definition at line 55 of file TSiStripMatchedRecHit.h.

References TSiStripMatchedRecHit().

Referenced by clone().

                                               {
    return new TSiStripMatchedRecHit(*this);
  }

TSiStripMatchedRecHit::RecHitPointer TSiStripMatchedRecHit::clone

(

const TrajectoryStateOnSurface &

ts

)

const [virtual]

Returns a copy of the hit with parameters and errors computed with respect to the TrajectoryStateOnSurface given as argument.

For concrete hits not capable to improve their parameters and errors this method returns an exact copy, and is equivalent to clone() without arguments.

Reimplemented from TransientTrackingRecHit.

Definition at line 36 of file TSiStripMatchedRecHit.cc.

References build(), clone(), SiStripRecHit2D::cluster(), SiStripRecHit2D::cluster_regional(), TransientTrackingRecHit::det(), GeomDet::geographicalId(), TransientTrackingRecHit::getAnnealingFactor(), gluedToStereo(), GenericTransientTrackingRecHit::hit(), TrajectoryStateOnSurface::isValid(), TrajectoryStateOnSurface::localDirection(), ClusterParameterEstimator< T >::localParameters(), TrajectoryStateOnSurface::localParameters(), SiStripRecHitMatcher::match(), GluedGeomDet::monoDet(), SiStripMatchedRecHit2D::monoHit(), GeomDet::position(), HLT_VtxMuL3::result, GluedGeomDet::stereoDet(), SiStripMatchedRecHit2D::stereoHit(), GeomDet::surface(), theCPE, theMatcher, GloballyPositioned< T >::toLocal(), and TransientTrackingRecHit::weight().

{
  if (theMatcher != 0) {
    const SiStripMatchedRecHit2D *orig = static_cast<const SiStripMatchedRecHit2D *> (this->hit());
    const GeomDet *det = this->det();
    const GluedGeomDet *gdet = static_cast<const GluedGeomDet *> (det);
    //if ((orig == 0) || (gdet == 0)) return this->clone(); // or just die ?
    LocalVector tkDir = (ts.isValid() ? ts.localDirection() : 
                         det->surface().toLocal( det->position()-GlobalPoint(0,0,0)));
    
    if(theCPE != 0){    
      //approximation: the ts parameter on the glued surface are used on the mono
      // and stereo surface to re-evaluate cluster parameter. A further propagation 
      //is slow// and useless (?) in this case.

      const SiStripMatchedRecHit2D* better;

      if(!orig->monoHit()->cluster().isNull()){
        const SiStripCluster& monoclust   = *orig->monoHit()->cluster();  
        const SiStripCluster& stereoclust = *orig->stereoHit()->cluster();

        StripClusterParameterEstimator::LocalValues lvMono = 
          theCPE->localParameters( monoclust, *gdet->monoDet(), ts.localParameters());
        StripClusterParameterEstimator::LocalValues lvStereo = 
          theCPE->localParameters( stereoclust, *gdet->stereoDet(), gluedToStereo(ts, gdet));
        
        SiStripRecHit2D monoHit = SiStripRecHit2D( lvMono.first, lvMono.second,
                                   gdet->monoDet()->geographicalId(),
                                   orig->monoHit()->cluster());
        
        SiStripRecHit2D stereoHit = SiStripRecHit2D( lvStereo.first, lvStereo.second,
                                     gdet->stereoDet()->geographicalId(),
                                     orig->stereoHit()->cluster());
        better =  theMatcher->match(&monoHit,&stereoHit,gdet,tkDir);
      }else{
        const SiStripCluster& monoclust   = *orig->monoHit()->cluster_regional();  
        const SiStripCluster& stereoclust = *orig->stereoHit()->cluster_regional();
        StripClusterParameterEstimator::LocalValues lvMono = 
          theCPE->localParameters( monoclust, *gdet->monoDet(), ts.localParameters());
        StripClusterParameterEstimator::LocalValues lvStereo = 
          theCPE->localParameters( stereoclust, *gdet->stereoDet(), ts.localParameters());
        
        SiStripRecHit2D monoHit = SiStripRecHit2D( lvMono.first, lvMono.second,
                                                   gdet->monoDet()->geographicalId(),
                                                   orig->monoHit()->cluster_regional());
        
        SiStripRecHit2D stereoHit = SiStripRecHit2D( lvStereo.first, lvStereo.second,
                                                     gdet->stereoDet()->geographicalId(),
                                                     orig->stereoHit()->cluster_regional());
        better =  theMatcher->match(&monoHit,&stereoHit,gdet,tkDir);
      }
      
      if (better == 0) {
        //dm::LogWarning("TSiStripMatchedRecHit") << "Refitting of a matched rechit returns NULL";
        return this->clone();
      }

      RecHitPointer result = TSiStripMatchedRecHit::build( gdet, better, theMatcher,theCPE, weight(), getAnnealingFactor()  );
      delete better; //the ownership of the object is passed to the caller of the matcher
      return result;

    }else{
      const SiStripMatchedRecHit2D *better = theMatcher->match(orig,gdet,tkDir);
      if (better == 0) {
        //edm::LogWarning("TSiStripMatchedRecHit") << "Refitting of a matched rechit returns NULL";
        return this->clone();        
      }
      RecHitPointer result = TSiStripMatchedRecHit::build( gdet, better, theMatcher,theCPE, weight(), getAnnealingFactor()  );
      delete better; //the ownership of the object is passed to the caller of the matcher
      return result;
    }
  }
  return this->clone();
   
}

const GeomDetUnit* TSiStripMatchedRecHit::detUnit

(

)

const [inline, virtual]

CAUTION: the GeomDetUnit* is zero for composite hits (matched hits in the tracker, segments in the muon).

Always check this pointer before using it!

Reimplemented from TransientTrackingRecHit.

Definition at line 21 of file TSiStripMatchedRecHit.h.

{return 0;}

virtual void TSiStripMatchedRecHit::getKfComponents

(

KfComponentsHolder &

holder

)

const [inline, virtual]

Reimplemented from TrackingRecHit.

Definition at line 13 of file TSiStripMatchedRecHit.h.

References TransientTrackingRecHit::det(), and GenericTransientTrackingRecHit::hit().

                                                                    {
      HelpertRecHit2DLocalPos().getKfComponents(holder, *hit(), *det()); 
  }

virtual AlgebraicSymMatrix TSiStripMatchedRecHit::parametersError

(

)

const [inline, virtual]

Reimplemented from GenericTransientTrackingRecHit.

Definition at line 17 of file TSiStripMatchedRecHit.h.

References TransientTrackingRecHit::det(), and GenericTransientTrackingRecHit::localPositionError().

                                                     {
    return HelpertRecHit2DLocalPos().parError( localPositionError(), *det()); 
  }

TransientTrackingRecHit::ConstRecHitContainer TSiStripMatchedRecHit::transientHits

(

)

const [virtual]

Composite interface: returns the component hits, if any.

Reimplemented from TransientTrackingRecHit.

Definition at line 115 of file TSiStripMatchedRecHit.cc.

References TSiStripRecHit2DLocalPos::build(), TransientTrackingRecHit::det(), GenericTransientTrackingRecHit::hit(), GluedGeomDet::monoDet(), SiStripMatchedRecHit2D::monoHit(), HLT_VtxMuL3::result, GluedGeomDet::stereoDet(), SiStripMatchedRecHit2D::stereoHit(), and theCPE.

                                            {
  ConstRecHitContainer result;

  const GluedGeomDet *gdet = static_cast<const GluedGeomDet *> (this->det());
  const SiStripMatchedRecHit2D *orig = static_cast<const SiStripMatchedRecHit2D *> (this->hit());

  result.push_back(TSiStripRecHit2DLocalPos::build( gdet->monoDet(),orig->monoHit(),theCPE));
  result.push_back(TSiStripRecHit2DLocalPos::build( gdet->stereoDet(),orig->stereoHit(),theCPE));
  return result;
}

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Member Data Documentation

const StripClusterParameterEstimator* TSiStripMatchedRecHit::theCPE [private]

Definition at line 42 of file TSiStripMatchedRecHit.h.

Referenced by clone(), and transientHits().

const SiStripRecHitMatcher* TSiStripMatchedRecHit::theMatcher [private]

Definition at line 41 of file TSiStripMatchedRecHit.h.

Referenced by canImproveWithTrack(), and clone().

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

• RecoTracker/TransientTrackingRecHit/interface/TSiStripMatchedRecHit.h
• RecoTracker/TransientTrackingRecHit/src/TSiStripMatchedRecHit.cc

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