reco::TrackKinematics Class Reference

#include <TrackKinematics.h>

Public Member Functions
void	add (const reco::Track &track, double weight=1.0)
unsigned int	numberOfTracks () const
TrackKinematics	operator+ (const TrackKinematics &other)
TrackKinematics &	operator+= (const TrackKinematics &other)
double	sumOfWeights () const
	TrackKinematics ()
	TrackKinematics (const std::vector< reco::Track > &tracks)
	TrackKinematics (const reco::TrackRefVector &tracks)
	TrackKinematics (const reco::Vertex &vertex)
const math::XYZTLorentzVector &	vectorSum () const
const math::XYZTLorentzVector &	weightedVectorSum () const
	~TrackKinematics ()

Private Attributes
unsigned int	n
math::XYZTLorentzVector	sum
double	sumWeights
math::XYZTLorentzVector	weightedSum

Detailed Description

Definition at line 13 of file TrackKinematics.h.

Constructor & Destructor Documentation

TrackKinematics::TrackKinematics

(

)

Definition at line 16 of file TrackKinematics.cc.

                                 :
    n(0), sumWeights(0)
{
}

TrackKinematics::TrackKinematics

(

const std::vector< reco::Track > &

tracks

)

Definition at line 21 of file TrackKinematics.cc.

References add().

                                                               :
    n(0), sumWeights(0)
{
    for(std::vector<Track>::const_iterator iter = tracks.begin();
        iter != tracks.end(); iter++)
        add(*iter);
}

TrackKinematics::TrackKinematics

(

const reco::TrackRefVector &

tracks

)

Definition at line 29 of file TrackKinematics.cc.

References add(), edm::RefVector< C, T, F >::begin(), and edm::RefVector< C, T, F >::end().

                                                             :
    n(0), sumWeights(0)
{
    for(TrackRefVector::const_iterator iter = tracks.begin();
        iter != tracks.end(); iter++)
        add(**iter);
}

TrackKinematics::TrackKinematics

(

const reco::Vertex &

vertex

)

Definition at line 37 of file TrackKinematics.cc.

References add(), reco::Vertex::hasRefittedTracks(), reco::Vertex::refittedTrack(), reco::Vertex::tracks_begin(), reco::Vertex::tracks_end(), and reco::Vertex::trackWeight().

                                                     :
    n(0), sumWeights(0)
{
    bool hasRefittedTracks = vertex.hasRefittedTracks();
    for(Vertex::trackRef_iterator iter = vertex.tracks_begin();
        iter != vertex.tracks_end(); ++iter) {
        if (hasRefittedTracks)
            add(vertex.refittedTrack(*iter),
                vertex.trackWeight(*iter));
        else
            add(**iter, vertex.trackWeight(*iter));
    }
}

reco::TrackKinematics::~TrackKinematics ( )

inline

Definition at line 19 of file TrackKinematics.h.

{}

Member Function Documentation

void TrackKinematics::add	(	const reco::Track &	track,
		double	weight = 1.0
	)

Definition at line 61 of file TrackKinematics.cc.

References n, reco::ParticleMasses::piPlus, reco::TrackBase::px(), reco::TrackBase::py(), reco::TrackBase::pz(), sum, sumWeights, histoStyle::weight, and weightedSum.

Referenced by GhostTrackComputer::threshTrack(), and TrackKinematics().

{
    ROOT::Math::LorentzVector<ROOT::Math::PxPyPzM4D<double> > vec;

    vec.SetPx(track.px());
    vec.SetPy(track.py());
    vec.SetPz(track.pz());
    vec.SetM(ParticleMasses::piPlus);

    n++;
    sumWeights += weight;
    sum += vec;
    weightedSum += weight * vec;
}

unsigned int reco::TrackKinematics::numberOfTracks ( ) const

inline

Definition at line 27 of file TrackKinematics.h.

References n.

{ return n; }

TrackKinematics reco::TrackKinematics::operator+ ( const TrackKinematics &  other )

inline

Definition at line 24 of file TrackKinematics.h.

References filterCSVwithJSON::copy.

    { TrackKinematics copy = *this; copy += other; return copy; }

TrackKinematics & TrackKinematics::operator+=

(

const TrackKinematics &

other

)

Definition at line 51 of file TrackKinematics.cc.

References n, sum, sumWeights, and weightedSum.

{
    n += other.n;
    sumWeights += other.sumWeights;
    sum += other.sum;
    weightedSum += other.weightedSum;

    return *this;
}

double reco::TrackKinematics::sumOfWeights ( ) const

inline

Definition at line 28 of file TrackKinematics.h.

References sumWeights.

{ return sumWeights; }

const math::XYZTLorentzVector& reco::TrackKinematics::vectorSum ( ) const

inline

Definition at line 30 of file TrackKinematics.h.

References sum.

Referenced by SimpleSecondaryVertexComputer::discriminator(), reco::VertexFilter::operator()(), and GhostTrackComputer::threshTrack().

    { return sum; }

const math::XYZTLorentzVector& reco::TrackKinematics::weightedVectorSum ( ) const

inline

Definition at line 32 of file TrackKinematics.h.

References weightedSum.

Referenced by reco::VertexFilter::operator()().

    { return weightedSum; }

Member Data Documentation

unsigned int reco::TrackKinematics::n

private

Definition at line 36 of file TrackKinematics.h.

Referenced by add(), numberOfTracks(), and operator+=().

math::XYZTLorentzVector reco::TrackKinematics::sum

private

Definition at line 38 of file TrackKinematics.h.

Referenced by add(), operator+=(), and vectorSum().

double reco::TrackKinematics::sumWeights

private

Definition at line 37 of file TrackKinematics.h.

Referenced by add(), operator+=(), and sumOfWeights().

math::XYZTLorentzVector reco::TrackKinematics::weightedSum

private

Definition at line 39 of file TrackKinematics.h.

Referenced by add(), operator+=(), and weightedVectorSum().