CSCSegment Class Reference

#include <CSCSegment.h>

Inheritance diagram for CSCSegment:

Public Member Functions
double	chi2 () const override
	Chi2 of the segment fit. More...
CSCSegment *	clone () const override
CSCDetId	cscDetId () const
	CSCSegment ()
	Default constructor. More...
	CSCSegment (const std::vector< const CSCRecHit2D *> &proto_segment, LocalPoint origin, LocalVector direction, const AlgebraicSymMatrix &errors, double chi2)
	Constructor. More...
int	degreesOfFreedom () const override
	Degrees of freedom of the segment fit. More...
int	dimension () const override
	Dimension (in parameter space) More...
const std::vector< CSCSegment > &	duplicateSegments () const
bool	isME11a_duplicate () const
LocalVector	localDirection () const override
	Local direction. More...
LocalError	localDirectionError () const override
	Error on the local direction. More...
LocalPoint	localPosition () const override
LocalError	localPositionError () const override
int	nRecHits () const
AlgebraicVector	parameters () const override
	Parameters of the segment, for the track fit in the order (dx/dz, dy/dz, x, y ) More...
AlgebraicSymMatrix	parametersError () const override
	Covariance matrix of parameters() More...
void	print () const
AlgebraicMatrix	projectionMatrix () const override
	The projection matrix relates the trajectory state parameters to the segment parameters(). More...
std::vector< const TrackingRecHit * >	recHits () const override
	Access to component RecHits (if any) More...
std::vector< TrackingRecHit * >	recHits () override
	Non-const access to component RecHits (if any) More...
void	setDuplicateSegments (std::vector< CSCSegment *> &duplicates)
bool	sharesRecHits (const CSCSegment &anotherSegment, CSCRecHit2D::SharedInputType sharesInput) const
bool	sharesRecHits (const CSCSegment &anotherSegment) const
const std::vector< CSCRecHit2D > &	specificRecHits () const
bool	testSharesAllInSpecificRecHits (const std::vector< CSCRecHit2D > &specificRecHits_1, const std::vector< CSCRecHit2D > &specificRecHits_2, CSCRecHit2D::SharedInputType) const
float	time () const
	~CSCSegment () override
	Destructor. More...
Public Member Functions inherited from RecSegment
	RecSegment (DetId id)
	RecSegment (TrackingRecHit::id_type id=0)
	~RecSegment () override
	Destructor. More...
Public Member Functions inherited from TrackingRecHit
virtual bool	canImproveWithTrack () const
RecHitPointer	cloneForFit (const GeomDet &idet) const
virtual TrackingRecHit *	cloneHit () const
virtual RecHitPointer	cloneSH () const
const GeomDet *	det () const
virtual const GeomDetUnit *	detUnit () const
virtual float	errorGlobalR () const
virtual float	errorGlobalRPhi () const
virtual float	errorGlobalZ () const
DetId	geographicalId () const
virtual void	getKfComponents (KfComponentsHolder &holder) const
unsigned int	getRTTI () const
Type	getType () const
virtual GlobalPoint	globalPosition () const
virtual GlobalError	globalPositionError () const
virtual bool	hasPositionAndError () const
	to be redefined by daughter class More...
virtual TrackingRecHit const *	hit () const
bool	isValid () const
id_type	rawId () const
virtual void	recHitsV (std::vector< const TrackingRecHit *> &) const
virtual void	recHitsV (std::vector< TrackingRecHit *> &)
virtual void	setDet (const GeomDet &idet)
virtual bool	sharesInput (const TrackingRecHit *other, SharedInputType what) const
virtual const Surface *	surface () const
	TrackingRecHit (DetId id, Type type=valid)
	TrackingRecHit (id_type id=0, Type type=valid)
	TrackingRecHit (DetId id, unsigned int rt, Type type=valid)
	TrackingRecHit (const GeomDet &idet, Type type=valid)
	TrackingRecHit (const GeomDet &idet, unsigned int rt, Type type=valid)
	TrackingRecHit (const GeomDet &idet, TrackingRecHit const &rh)
virtual ConstRecHitContainer	transientHits () const
Type	type () const
virtual float	weight () const
virtual	~TrackingRecHit ()

Private Attributes
bool	aME11a_duplicate
double	theChi2
AlgebraicSymMatrix	theCovMatrix
std::vector< CSCRecHit2D >	theCSCRecHits
std::vector< CSCSegment >	theDuplicateSegments
LocalVector	theLocalDirection
LocalPoint	theOrigin

Additional Inherited Members
Public Types inherited from TrackingRecHit
typedef std::vector< ConstRecHitPointer >	ConstRecHitContainer
using	ConstRecHitPointer = std::shared_ptr< TrackingRecHit const >
typedef unsigned int	id_type
typedef std::vector< ConstRecHitPointer >	RecHitContainer
using	RecHitPointer = std::shared_ptr< TrackingRecHit const >
enum	SharedInputType { all, some }
	definition of equality via shared input More...
enum	Type {   valid = 0, missing = 1, inactive = 2, bad = 3,   missing_inner = 4, missing_outer = 5, inactive_inner = 6, inactive_outer = 7 }
Static Public Attributes inherited from TrackingRecHit
static const int	rttiShift = 24
static const int	typeMask = 0xf
Protected Member Functions inherited from TrackingRecHit
void	setId (id_type iid)
void	setRTTI (unsigned int rt)
void	setType (Type ttype)

Detailed Description

Describes a reconstructed track segment in the 6 layers of a CSC chamber. This is 4-dimensional since it has an origin (x,y) and a direction (x,y) in the local coordinate system of the chamber.

Author

Matteo Sani

Rick Wilkinson

Tim Cox

Definition at line 21 of file CSCSegment.h.

Constructor & Destructor Documentation

CSCSegment() [1/2]

CSCSegment::CSCSegment ( )

inline

Default constructor.

Definition at line 24 of file CSCSegment.h.

Referenced by clone().

: theChi2(0.), aME11a_duplicate(false) {}

CSCSegment() [2/2]

CSCSegment::CSCSegment	(	const std::vector< const CSCRecHit2D *> &	proto_segment,
		LocalPoint	origin,
		LocalVector	direction,
		const AlgebraicSymMatrix &	errors,
		double	chi2
	)

Constructor.

Definition at line 15 of file CSCSegment.cc.

References mps_fire::i, and theCSCRecHits.

    : RecSegment(buildDetId(proto_segment.front()->cscDetId())),
      theOrigin(origin),
      theLocalDirection(direction),
      theCovMatrix(errors),
      theChi2(chi2),
      aME11a_duplicate(false) {
  for (unsigned int i = 0; i < proto_segment.size(); ++i)
    theCSCRecHits.push_back(*proto_segment[i]);
}

~CSCSegment()

CSCSegment::~CSCSegment ( )

override

Destructor.

Definition at line 30 of file CSCSegment.cc.

{}

Member Function Documentation

chi2()

double CSCSegment::chi2 ( ) const

inlineoverridevirtual

Chi2 of the segment fit.

Implements RecSegment.

Definition at line 58 of file CSCSegment.h.

References theChi2.

Referenced by CSCSegAlgoST::buildSegments(), GEMCSCSegAlgoRR::buildSegments(), CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), operator<<(), and MuonTrackCSCChamberResidual::setSegmentResidual().

{ return theChi2; };

clone()

CSCSegment* CSCSegment::clone ( void  ) const

inlineoverridevirtual

Implements TrackingRecHit.

Definition at line 37 of file CSCSegment.h.

References CSCSegment().

{ return new CSCSegment(*this); }

cscDetId()

CSCDetId CSCSegment::cscDetId ( ) const

inline

Definition at line 70 of file CSCSegment.h.

References TrackingRecHit::geographicalId().

Referenced by FWCSCSegmentProxyBuilder::build(), GEMCSCSegAlgoRR::buildSegments(), DynamicTruncation::chooseLayers(), DynamicTruncation::fillDYTInfos(), GEMCSCSegment::GEMCSCSegment(), GEMEffByGEMCSCSegmentSource::isME11SegmentMatched(), and DynamicTruncation::preliminaryFit().

{ return geographicalId(); }

degreesOfFreedom()

int CSCSegment::degreesOfFreedom ( ) const

inlineoverridevirtual

Degrees of freedom of the segment fit.

Implements RecSegment.

Definition at line 62 of file CSCSegment.h.

References nRecHits().

Referenced by CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), operator<<(), and MuonTrackCSCChamberResidual::setSegmentResidual().

{ return 2 * nRecHits() - 4; }

dimension()

int CSCSegment::dimension ( ) const

inlineoverridevirtual

Dimension (in parameter space)

Implements RecSegment.

Definition at line 60 of file CSCSegment.h.

{ return 4; }

duplicateSegments()

const std::vector<CSCSegment>& CSCSegment::duplicateSegments ( ) const

inline

Definition at line 76 of file CSCSegment.h.

References theDuplicateSegments.

Referenced by operator<<().

{ return theDuplicateSegments; }

isME11a_duplicate()

bool CSCSegment::isME11a_duplicate ( ) const

inline

Definition at line 74 of file CSCSegment.h.

References theDuplicateSegments, and funct::true.

{ return (!theDuplicateSegments.empty() ? true : false); }

localDirection()

LocalVector CSCSegment::localDirection ( ) const

inlineoverridevirtual

Local direction.

Implements RecSegment.

Definition at line 42 of file CSCSegment.h.

References theLocalDirection.

Referenced by FWCSCSegmentProxyBuilder::build(), GEMCSCSegAlgoRR::chainHitsToSegm(), CSCOfflineMonitor::doEfficiencies(), CSCValidation::doEfficiencies(), CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), operator<<(), and CSCSegmentValidation::plotResolution().

{ return theLocalDirection; }

localDirectionError()

LocalError CSCSegment::localDirectionError ( ) const

overridevirtual

Error on the local direction.

Implements RecSegment.

Definition at line 52 of file CSCSegment.cc.

References theCovMatrix.

Referenced by CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), operator<<(), and CSCSegmentValidation::plotResolution().

                                                 {
  return LocalError(theCovMatrix[0][0], theCovMatrix[0][1], theCovMatrix[1][1]);
}

localPosition()

LocalPoint CSCSegment::localPosition ( ) const

inlineoverridevirtual

Implements TrackingRecHit.

Definition at line 39 of file CSCSegment.h.

References theOrigin.

Referenced by FWCSCSegmentProxyBuilder::build(), GEMCSCSegAlgoRR::chainHitsToSegm(), CSCOfflineMonitor::doEfficiencies(), CSCValidation::doEfficiencies(), CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), GEMEffByGEMCSCSegmentSource::isME11SegmentMatched(), operator<<(), and CSCSegmentValidation::plotResolution().

{ return theOrigin; }

localPositionError()

LocalError CSCSegment::localPositionError ( ) const

overridevirtual

Implements TrackingRecHit.

Definition at line 48 of file CSCSegment.cc.

References theCovMatrix.

Referenced by CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), operator<<(), and CSCSegmentValidation::plotResolution().

                                                {
  return LocalError(theCovMatrix[2][2], theCovMatrix[2][3], theCovMatrix[3][3]);
}

nRecHits()

int CSCSegment::nRecHits ( ) const

inline

Definition at line 68 of file CSCSegment.h.

References theCSCRecHits.

Referenced by CSCSegAlgoST::buildSegments(), CSCSegAlgoDF::buildSegments(), degreesOfFreedom(), and MuonTrackCSCChamberResidual::setSegmentResidual().

{ return theCSCRecHits.size(); }

parameters()

AlgebraicVector CSCSegment::parameters ( void  ) const

overridevirtual

Parameters of the segment, for the track fit in the order (dx/dz, dy/dz, x, y )

Implements TrackingRecHit.

Definition at line 56 of file CSCSegment.cc.

References mps_fire::result, theLocalDirection, theOrigin, PV3DBase< T, PVType, FrameType >::x(), PV3DBase< T, PVType, FrameType >::y(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by StateSegmentMatcher::StateSegmentMatcher().

                                             {
  // For consistency with DT and what we require for the TrackingRecHit interface,
  // the order of the parameters in the returned vector should be (dx/dz, dy/dz, x, z)

  AlgebraicVector result(4);

  result[0] = theLocalDirection.x() / theLocalDirection.z();
  result[1] = theLocalDirection.y() / theLocalDirection.z();
  result[2] = theOrigin.x();
  result[3] = theOrigin.y();

  return result;
}

parametersError()

AlgebraicSymMatrix CSCSegment::parametersError ( ) const

inlineoverridevirtual

Covariance matrix of parameters()

Implements TrackingRecHit.

Definition at line 49 of file CSCSegment.h.

References theCovMatrix.

Referenced by CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), and StateSegmentMatcher::StateSegmentMatcher().

{ return theCovMatrix; }

print()

void CSCSegment::print

(

void

)

const

Definition at line 179 of file CSCSegment.cc.

References gather_cfg::cout.

{ std::cout << *this << std::endl; }

projectionMatrix()

AlgebraicMatrix CSCSegment::projectionMatrix ( ) const

overridevirtual

The projection matrix relates the trajectory state parameters to the segment parameters().

Implements TrackingRecHit.

Definition at line 81 of file CSCSegment.cc.

References theProjectionMatrix.

{ return theProjectionMatrix; }

recHits() [1/2]

std::vector< const TrackingRecHit * > CSCSegment::recHits ( ) const

overridevirtual

Access to component RecHits (if any)

Implements TrackingRecHit.

Definition at line 32 of file CSCSegment.cc.

References theCSCRecHits.

Referenced by MuonAssociatorByHitsHelper::getMatchedIds(), TrackerMuonHitExtractor::getMuonHits(), and MuonTrackProducer::produce().

                                                           {
  std::vector<const TrackingRecHit*> pointersOfRecHits;
  for (std::vector<CSCRecHit2D>::const_iterator irh = theCSCRecHits.begin(); irh != theCSCRecHits.end(); ++irh) {
    pointersOfRecHits.push_back(&(*irh));
  }
  return pointersOfRecHits;
}

recHits() [2/2]

std::vector< TrackingRecHit * > CSCSegment::recHits ( )

overridevirtual

Non-const access to component RecHits (if any)

Implements TrackingRecHit.

Definition at line 40 of file CSCSegment.cc.

References theCSCRecHits.

                                               {
  std::vector<TrackingRecHit*> pointersOfRecHits;
  for (std::vector<CSCRecHit2D>::iterator irh = theCSCRecHits.begin(); irh != theCSCRecHits.end(); ++irh) {
    pointersOfRecHits.push_back(&(*irh));
  }
  return pointersOfRecHits;
}

setDuplicateSegments()

void CSCSegment::setDuplicateSegments

(

std::vector< CSCSegment *> &

duplicates

)

Definition at line 83 of file CSCSegment.cc.

References mps_fire::i, and theDuplicateSegments.

                                                                        {
  theDuplicateSegments.clear();
  for (unsigned int i = 0; i < duplicates.size(); ++i) {
    theDuplicateSegments.push_back(*duplicates[i]);
    //avoid copying duplicates of duplicates of duplicates...
    theDuplicateSegments.back().theDuplicateSegments.resize(0);
  }
}

sharesRecHits() [1/2]

bool CSCSegment::sharesRecHits	(	const CSCSegment &	anotherSegment,
		CSCRecHit2D::SharedInputType	sharesInput
	)		const

Definition at line 129 of file CSCSegment.cc.

References TrackingRecHit::sharesInput(), specificRecHits(), testSharesAllInSpecificRecHits(), and theCSCRecHits.

                                                                                                             {
  return testSharesAllInSpecificRecHits(theCSCRecHits, anotherSegment.specificRecHits(), sharesInput);
}

sharesRecHits() [2/2]

bool CSCSegment::sharesRecHits

(

const CSCSegment &

anotherSegment

)

const

Definition at line 134 of file CSCSegment.cc.

References CSCRecHit2D::someStrips, CSCRecHit2D::someWires, specificRecHits(), testSharesAllInSpecificRecHits(), and theCSCRecHits.

                                                                     {
  if (testSharesAllInSpecificRecHits(theCSCRecHits, anotherSegment.specificRecHits(), CSCRecHit2D::someWires) &&
      testSharesAllInSpecificRecHits(theCSCRecHits, anotherSegment.specificRecHits(), CSCRecHit2D::someStrips)) {
    return true;
  } else {
    return false;
  }
}

specificRecHits()

const std::vector<CSCRecHit2D>& CSCSegment::specificRecHits ( ) const

inline

Definition at line 66 of file CSCSegment.h.

References theCSCRecHits.

Referenced by GEMCSCSegAlgoRR::buildSegments(), GEMCSCSegAlgoRR::chainHitsToSegm(), GEMCSCSegment::cscRecHits(), CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), GEMCSCSegment::GEMCSCSegment(), GEMCSCSegment::nRecHits(), operator<<(), GEMCSCSegment::recHits(), sharesRecHits(), and DynamicTruncation::updateWithCSChits().

{ return theCSCRecHits; }

testSharesAllInSpecificRecHits()

bool CSCSegment::testSharesAllInSpecificRecHits	(	const std::vector< CSCRecHit2D > &	specificRecHits_1,
		const std::vector< CSCRecHit2D > &	specificRecHits_2,
		CSCRecHit2D::SharedInputType	sharesInput
	)		const

Definition at line 92 of file CSCSegment.cc.

References TrackingRecHit::sharesInput().

Referenced by sharesRecHits().

                                                                                              {
  const std::vector<CSCRecHit2D>* rhContainer_1 = &specificRecHits_1;
  const std::vector<CSCRecHit2D>* rhContainer_2 = &specificRecHits_2;
  if (specificRecHits_1.size() > specificRecHits_2.size()) {
    rhContainer_2 = &specificRecHits_1;
    rhContainer_1 = &specificRecHits_2;
  }
  //
  bool shareConditionPassed = true;
  for (std::vector<CSCRecHit2D>::const_iterator itRH = rhContainer_1->begin(); itRH != rhContainer_1->end(); ++itRH) {
    const CSCRecHit2D* firstRecHit = &(*itRH);
    bool sharedHit = false;
    for (std::vector<CSCRecHit2D>::const_iterator itRH2 = rhContainer_2->begin(); itRH2 != rhContainer_2->end();
         ++itRH2) {
      if (itRH2->sharesInput(firstRecHit, sharesInput)) {
        sharedHit = true;
        break;
      }
    }
    if (!sharedHit) {
      shareConditionPassed = false;
      break;
    }
  }
  return shareConditionPassed;
}

time()

float CSCSegment::time

(

)

const

Definition at line 144 of file CSCSegment.cc.

References change_name::diff, reco::castor::maxDiff(), MTVHistoProducerAlgoForTrackerBlock_cfi::maxHit, N, rpcPointValidation_cfi::recHit, and theCSCRecHits.

Referenced by CSCSegAlgoST::dumpSegment(), CSCSegAlgoDF::dumpSegment(), CSCSegAlgoSK::dumpSegment(), CSCSegAlgoTC::dumpSegment(), and GEMEffByGEMCSCSegmentSource::isME11SegmentMatched().

                             {
  float averageTime = 0;
  std::vector<float> wireTimes;
  for (std::vector<CSCRecHit2D>::const_iterator itRH = theCSCRecHits.begin(); itRH != theCSCRecHits.end(); ++itRH) {
    const CSCRecHit2D* recHit = &(*itRH);
    averageTime += recHit->tpeak();
    averageTime += recHit->wireTime();
    wireTimes.push_back(recHit->wireTime());
  }
  averageTime = averageTime / (2 * theCSCRecHits.size());

  //The wire times have a long tail that has to be pruned.  The strip times (tpeak) are fine
  bool modified = true;
  while (modified) {
    modified = false;
    double maxDiff = -1;
    std::vector<float>::iterator maxHit;
    for (std::vector<float>::iterator itWT = wireTimes.begin(); itWT != wireTimes.end(); ++itWT) {
      float diff = fabs(*itWT - averageTime);
      if (diff > maxDiff) {
        maxDiff = diff;
        maxHit = itWT;
      }
    }
    if (maxDiff > 26) {
      int N = theCSCRecHits.size() + wireTimes.size();
      averageTime = (averageTime * N - (*maxHit)) / (N - 1);
      wireTimes.erase(maxHit);
      modified = true;
    }
  }
  return averageTime;
}

Member Data Documentation

aME11a_duplicate

bool CSCSegment::aME11a_duplicate

private

Definition at line 98 of file CSCSegment.h.

theChi2

double CSCSegment::theChi2

private

Definition at line 97 of file CSCSegment.h.

Referenced by chi2().

theCovMatrix

AlgebraicSymMatrix CSCSegment::theCovMatrix

private

Definition at line 96 of file CSCSegment.h.

Referenced by localDirectionError(), localPositionError(), and parametersError().

theCSCRecHits

std::vector<CSCRecHit2D> CSCSegment::theCSCRecHits

private

Definition at line 93 of file CSCSegment.h.

Referenced by CSCSegment(), nRecHits(), recHits(), sharesRecHits(), specificRecHits(), and time().

theDuplicateSegments

std::vector<CSCSegment> CSCSegment::theDuplicateSegments

private

Definition at line 99 of file CSCSegment.h.

Referenced by duplicateSegments(), isME11a_duplicate(), and setDuplicateSegments().

theLocalDirection

LocalVector CSCSegment::theLocalDirection

private

Definition at line 95 of file CSCSegment.h.

Referenced by localDirection(), and parameters().

theOrigin

LocalPoint CSCSegment::theOrigin

private

Definition at line 94 of file CSCSegment.h.

Referenced by localPosition(), and parameters().