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genfit::TrackCand Class Reference

Track candidate – seed values and indices. More...

#include <GenFit/blob/master/core/include/TrackCand.h>

+ Inheritance diagram for genfit::TrackCand:
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Public Member Functions

 TrackCand ()
 
 ~TrackCand ()
 
 TrackCand (const TrackCand &other)
 copy constructor
 
TrackCand & operator= (TrackCand other)
 assignment operator
 
void swap (TrackCand &other)
 
TrackCandHit * getHit (int i) const
 
void getHit (int i, int &detId, int &hitId) const
 Get detector Id and hit Id for hit number i.
 
void getHit (int i, int &detId, int &hitId, double &sortingParameter) const
 Get detector Id, hit Id and sorting parameter for hit number i.
 
void getHitWithPlane (int i, int &detId, int &hitId, int &planeId) const
 Get detector Id, hit Id and plane id for hit number i.
 
unsigned int getNHits () const
 
std::vector< int > getHitIDs (int detId=-2) const
 Get hit ids of from a specific detector.
 
std::vector< int > getDetIDs () const
 Get detector IDs of all hits.
 
std::vector< double > getSortingParameters () const
 Get sorting parameterts of all hits.
 
std::set< int > getUniqueDetIDs () const
 
int getMcTrackId () const
 Get the MCT track id, for MC simulations - default value = -1.
 
double getTimeSeed () const
 Get the time at which the seed state is defined.
 
TVector3 getPosSeed () const
 get the seed value for track: pos. Identical to the first 3 components of getStateSeed
 
TVector3 getMomSeed () const
 get the seed value for track: mom. Identical to the last 3 components of getStateSeed
 
const TMatrixDSym & getCovSeed () const
 get the covariance matrix seed (6D).
 
const TVectorD & getStateSeed () const
 Returns the 6D seed state; should be in global coordinates.
 
double getChargeSeed () const
 
int getPdgCode () const
 Get the PDG code.
 
bool hitInTrack (int detId, int hitId) const
 Is there a hit with detId and hitId in the TrackCand?
 
void addHit (int detId, int hitId, int planeId=-1, double sortingParameter=0)
 
void addHit (TrackCandHit *hit)
 
void setMcTrackId (int i)
 Set the MCT track id, for MC simulations.
 
void setPdgCode (int pdgCode)
 Set a particle hypothesis in form of a PDG code. This will also set the charge attribute.
 
void append (const TrackCand &)
 Clone the TrackCandHit objects from the other TrackCand and append them to this TrackCand.
 
void sortHits ()
 Sort the hits that were already added to the trackCand using the sorting parameters.
 
void sortHits (const std::vector< unsigned int > &indices)
 
void reset ()
 Delete and clear the TrackCandHits.
 
void Print (const Option_t *="") const
 Write the content of all private attributes to the terminal.
 
void setTimeSeed (double time)
 Set the time at which the seed is defined.
 
void setCovSeed (const TMatrixDSym &cov6D)
 set the covariance matrix seed (6D).
 
void set6DSeed (const TVectorD &state6D, const double charge)
 sets the state to seed the track fitting. State has to be a TVectorD(6). First 3 elements are the staring postion second 3 elements the starting momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge
 
void set6DSeedAndPdgCode (const TVectorD &state6D, const int pdgCode)
 This function works the same as set6DSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.
 
void setPosMomSeed (const TVector3 &pos, const TVector3 &mom, const double charge)
 sets the state to seed the track fitting. State has to be a TVector3 for position and a TVector3 for momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge
 
void setPosMomSeedAndPdgCode (const TVector3 &pos, const TVector3 &mom, const int pdgCode)
 This function works the same as setPosMomSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.
 
void setTime6DSeed (double time, const TVectorD &state6D, const double charge)
 sets the state to seed the track fitting and its time. State has to be a TVectorD(6). First 3 elements are the staring postion second 3 elements the starting momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge.
 
void setTime6DSeedAndPdgCode (double time, const TVectorD &state6D, const int pdgCode)
 This function works the same as set6DSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.
 
void setTimePosMomSeed (double time, const TVector3 &pos, const TVector3 &mom, const double charge)
 sets the state to seed the track fitting and its time. State has to be a TVector3 for position and a TVector3 for momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge.
 
void setTimePosMomSeedAndPdgCode (double time, const TVector3 &pos, const TVector3 &mom, const int pdgCode)
 This function works the same as setPosMomSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.
 

Static Public Member Functions

static bool compareTrackCandHits (const TrackCandHit *lhs, const TrackCandHit *rhs)
 

Private Attributes

std::vector< TrackCandHit * > hits_
 
int mcTrackId_
 
int pdg_
 
double time_
 
TVectorD state6D_
 
TMatrixDSym cov6D_
 
double q_
 

Friends

bool operator== (const TrackCand &lhs, const TrackCand &rhs)
 == operator checks equality of TrackCandHits. Does not check for sorting parameters.
 
bool operator!= (const TrackCand &lhs, const TrackCand &rhs)
 

Detailed Description

Track candidate – seed values and indices.

Author
Christian Höppner (Technische Universität München, original author)
Sebastian Neubert (Technische Universität München, original author)
Moritz Nadler (maintainer during 2012)

The main task of the TrackCand object is to store a list of indices to cluster objects. Each cluster in the Track is identified by it's detector ID and it's index in the corresponding TClonesArray. Also there is a ordering parameter to order hits. Optionally, plane indices for the hits can be stored (most importantly for fitting with the Daf). This information is used by the RecoHitFactory to automatically load RecoHits into a Track. Through this it is possible to define Tracks over an arbitrary number of different detectors.

In addition TrackCand offers members to store starting values for the fit. The starting values (seeds) for the fit are stored as a 6D state (x,y,z,px,py,pz) and its corresponding 6x6 covariance matrix. All seed getter and setter manipulate these two members but the user can chose using TVector3 or TMatrixD to get/set the seed state. However this information is not automatically used in genfit. But a pointer to a TrackCand can be passed to the a RKTrackRep constructor to make use of this information without manually extracting it from the TrackCand object.

See Also
RecoHitFactory

Definition at line 69 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 69 of file TrackCand.h

Constructor & Destructor Documentation

genfit::TrackCand::TrackCand ( )

Definition at line 31 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 31 of file TrackCand.cc

genfit::TrackCand::~TrackCand ( )

Definition at line 42 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 42 of file TrackCand.cc

References hits_, and i.

genfit::TrackCand::TrackCand ( const TrackCand &  other)

copy constructor

Definition at line 50 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 50 of file TrackCand.cc

References hits_, i, pdg_, and setPdgCode().

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Member Function Documentation

void genfit::TrackCand::addHit ( int  detId,
int  hitId,
int  planeId = -1,
double  sortingParameter = 0 
)

Definition at line 125 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 125 of file TrackCand.cc

References hits_.

Referenced by append(), genfit::Track::constructTrackCand(), and main().

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void genfit::TrackCand::addHit ( TrackCandHit *  hit)
inline

Definition at line 148 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 148 of file TrackCand.h

References hits_.

void genfit::TrackCand::append ( const TrackCand &  rhs)

Clone the TrackCandHit objects from the other TrackCand and append them to this TrackCand.

Definition at line 215 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 215 of file TrackCand.cc

References addHit(), genfit::TrackCandHit::clone(), getHit(), getNHits(), and i.

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static bool genfit::TrackCand::compareTrackCandHits ( const TrackCandHit *  lhs,
const TrackCandHit *  rhs 
)
inlinestatic

Definition at line 89 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 89 of file TrackCand.h

Referenced by sortHits().

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double genfit::TrackCand::getChargeSeed ( ) const
inline

Definition at line 136 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 136 of file TrackCand.h

References q_.

const TMatrixDSym& genfit::TrackCand::getCovSeed ( ) const
inline

get the covariance matrix seed (6D).

Definition at line 131 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 131 of file TrackCand.h

References cov6D_.

Referenced by genfit::Track::Track().

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std::vector< int > genfit::TrackCand::getDetIDs ( ) const

Get detector IDs of all hits.

Definition at line 140 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 140 of file TrackCand.cc

References hits_, and i.

TrackCandHit * genfit::TrackCand::getHit ( int  i) const

Definition at line 88 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 88 of file TrackCand.cc

References hits_.

Referenced by append(), genfit::MeasurementFactory< measurement_T >::createMany(), genfit::Track::createMeasurements(), and genfit::operator==().

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void genfit::TrackCand::getHit ( int  i,
int &  detId,
int &  hitId 
) const

Get detector Id and hit Id for hit number i.

Definition at line 96 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 96 of file TrackCand.cc

References hits_, and i.

void genfit::TrackCand::getHit ( int  i,
int &  detId,
int &  hitId,
double &  sortingParameter 
) const

Get detector Id, hit Id and sorting parameter for hit number i.

Definition at line 105 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 105 of file TrackCand.cc

References hits_, and i.

std::vector< int > genfit::TrackCand::getHitIDs ( int  detId = -2) const

Get hit ids of from a specific detector.

DetId -1 gives hitIds of hits with default detId -1. The default argument -2 gives hit Ids of all hits.

Definition at line 130 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 130 of file TrackCand.cc

References hits_, and i.

void genfit::TrackCand::getHitWithPlane ( int  i,
int &  detId,
int &  hitId,
int &  planeId 
) const

Get detector Id, hit Id and plane id for hit number i.

Definition at line 115 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 115 of file TrackCand.cc

References hits_, and i.

int genfit::TrackCand::getMcTrackId ( ) const
inline

Get the MCT track id, for MC simulations - default value = -1.

Definition at line 119 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 119 of file TrackCand.h

References mcTrackId_.

Referenced by genfit::Track::Track().

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TVector3 genfit::TrackCand::getMomSeed ( ) const
inline

get the seed value for track: mom. Identical to the last 3 components of getStateSeed

Definition at line 128 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 128 of file TrackCand.h

References state6D_.

unsigned int genfit::TrackCand::getNHits ( ) const
inline

Definition at line 103 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 103 of file TrackCand.h

References hits_.

Referenced by append(), genfit::MeasurementFactory< measurement_T >::createMany(), genfit::Track::createMeasurements(), genfit::operator==(), and sortHits().

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int genfit::TrackCand::getPdgCode ( ) const
inline

Get the PDG code.

Definition at line 139 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 139 of file TrackCand.h

References pdg_.

TVector3 genfit::TrackCand::getPosSeed ( ) const
inline

get the seed value for track: pos. Identical to the first 3 components of getStateSeed

Definition at line 125 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 125 of file TrackCand.h

References state6D_.

std::vector< double > genfit::TrackCand::getSortingParameters ( ) const

Get sorting parameterts of all hits.

Definition at line 148 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 148 of file TrackCand.cc

References hits_, and i.

const TVectorD& genfit::TrackCand::getStateSeed ( ) const
inline

Returns the 6D seed state; should be in global coordinates.

Definition at line 134 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 134 of file TrackCand.h

References state6D_.

Referenced by genfit::Track::Track().

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double genfit::TrackCand::getTimeSeed ( ) const
inline

Get the time at which the seed state is defined.

Definition at line 122 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 122 of file TrackCand.h

References time_.

Referenced by genfit::Track::Track().

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std::set< int > genfit::TrackCand::getUniqueDetIDs ( ) const

Definition at line 156 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 156 of file TrackCand.cc

References hits_, and i.

bool genfit::TrackCand::hitInTrack ( int  detId,
int  hitId 
) const

Is there a hit with detId and hitId in the TrackCand?

Definition at line 181 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 181 of file TrackCand.cc

References hits_, and i.

TrackCand & genfit::TrackCand::operator= ( TrackCand  other)

assignment operator

Definition at line 69 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 69 of file TrackCand.cc

References swap().

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void genfit::TrackCand::Print ( const Option_t *  option = "") const

Write the content of all private attributes to the terminal.

Definition at line 202 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 202 of file TrackCand.cc

References hits_, i, mcTrackId_, pdg_, genfit::printOut, q_, and state6D_.

void genfit::TrackCand::reset ( )

Delete and clear the TrackCandHits.

Definition at line 172 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 172 of file TrackCand.cc

References hits_, and i.

void genfit::TrackCand::set6DSeed ( const TVectorD &  state6D,
const double  charge 
)

sets the state to seed the track fitting. State has to be a TVectorD(6). First 3 elements are the staring postion second 3 elements the starting momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge

Definition at line 246 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 246 of file TrackCand.cc

References charge(), pdg_, q_, and state6D_.

Referenced by setTime6DSeed().

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void genfit::TrackCand::set6DSeedAndPdgCode ( const TVectorD &  state6D,
const int  pdgCode 
)

This function works the same as set6DSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.

Definition at line 253 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 253 of file TrackCand.cc

References setPdgCode(), and state6D_.

Referenced by setTime6DSeedAndPdgCode().

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void genfit::TrackCand::setCovSeed ( const TMatrixDSym &  cov6D)
inline

set the covariance matrix seed (6D).

Definition at line 175 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 175 of file TrackCand.h

References cov6D_.

Referenced by genfit::Track::constructTrackCand(), and main().

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void genfit::TrackCand::setMcTrackId ( int  i)
inline

Set the MCT track id, for MC simulations.

Definition at line 151 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 151 of file TrackCand.h

References i, and mcTrackId_.

Referenced by genfit::Track::constructTrackCand().

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void genfit::TrackCand::setPdgCode ( int  pdgCode)

Set a particle hypothesis in form of a PDG code. This will also set the charge attribute.

Definition at line 165 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 165 of file TrackCand.cc

References pdg_, and q_.

Referenced by set6DSeedAndPdgCode(), setPosMomSeedAndPdgCode(), and TrackCand().

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void genfit::TrackCand::setPosMomSeed ( const TVector3 &  pos,
const TVector3 &  mom,
const double  charge 
)

sets the state to seed the track fitting. State has to be a TVector3 for position and a TVector3 for momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge

Definition at line 258 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 258 of file TrackCand.cc

References charge(), pdg_, q_, and state6D_.

Referenced by setTimePosMomSeed().

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void genfit::TrackCand::setPosMomSeedAndPdgCode ( const TVector3 &  pos,
const TVector3 &  mom,
const int  pdgCode 
)

This function works the same as setPosMomSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.

Definition at line 266 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 266 of file TrackCand.cc

References setPdgCode(), and state6D_.

Referenced by main(), and setTimePosMomSeedAndPdgCode().

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void genfit::TrackCand::setTime6DSeed ( double  time,
const TVectorD &  state6D,
const double  charge 
)

sets the state to seed the track fitting and its time. State has to be a TVectorD(6). First 3 elements are the staring postion second 3 elements the starting momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge.

Definition at line 273 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 273 of file TrackCand.cc

References set6DSeed(), Acts::Test::time, and time_.

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void genfit::TrackCand::setTime6DSeedAndPdgCode ( double  time,
const TVectorD &  state6D,
const int  pdgCode 
)

This function works the same as set6DSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.

Definition at line 279 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 279 of file TrackCand.cc

References set6DSeedAndPdgCode(), Acts::Test::time, and time_.

Referenced by genfit::Track::constructTrackCand().

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void genfit::TrackCand::setTimePosMomSeed ( double  time,
const TVector3 &  pos,
const TVector3 &  mom,
const double  charge 
)

sets the state to seed the track fitting and its time. State has to be a TVector3 for position and a TVector3 for momentum. Everything in global coordinates charge is the charge hypotheses of the particle charge.

Definition at line 285 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 285 of file TrackCand.cc

References setPosMomSeed(), Acts::Test::time, and time_.

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void genfit::TrackCand::setTimePosMomSeedAndPdgCode ( double  time,
const TVector3 &  pos,
const TVector3 &  mom,
const int  pdgCode 
)

This function works the same as setPosMomSeed but instead of a charge hypothesis you can set a pdg code which will set the charge automatically.

Definition at line 292 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 292 of file TrackCand.cc

References setPosMomSeedAndPdgCode(), Acts::Test::time, and time_.

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void genfit::TrackCand::setTimeSeed ( double  time)
inline

Set the time at which the seed is defined.

Definition at line 172 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 172 of file TrackCand.h

References Acts::Test::time, and time_.

void genfit::TrackCand::sortHits ( )

Sort the hits that were already added to the trackCand using the sorting parameters.

Definition at line 222 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 222 of file TrackCand.cc

References compareTrackCandHits(), and hits_.

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void genfit::TrackCand::sortHits ( const std::vector< unsigned int > &  indices)

Definition at line 227 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 227 of file TrackCand.cc

References getNHits(), hits_, and i.

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void genfit::TrackCand::swap ( TrackCand &  other)

Definition at line 75 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 75 of file TrackCand.cc

References cov6D_, hits_, mcTrackId_, pdg_, q_, state6D_, swap(), and time_.

Referenced by operator=().

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Friends And Related Function Documentation

bool operator!= ( const TrackCand &  lhs,
const TrackCand &  rhs 
)
friend

Definition at line 87 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 87 of file TrackCand.h

bool operator== ( const TrackCand &  lhs,
const TrackCand &  rhs 
)
friend

== operator checks equality of TrackCandHits. Does not check for sorting parameters.

Definition at line 191 of file TrackCand.cc.

View newest version in sPHENIX GitHub at line 191 of file TrackCand.cc

Member Data Documentation

TMatrixDSym genfit::TrackCand::cov6D_
private

global 6D position plus momentum state

Definition at line 235 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 235 of file TrackCand.h

Referenced by getCovSeed(), setCovSeed(), and swap().

std::vector<TrackCandHit*> genfit::TrackCand::hits_
private

Definition at line 228 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 228 of file TrackCand.h

Referenced by addHit(), getDetIDs(), getHit(), getHitIDs(), getHitWithPlane(), getNHits(), getSortingParameters(), getUniqueDetIDs(), hitInTrack(), Print(), reset(), sortHits(), swap(), TrackCand(), and ~TrackCand().

int genfit::TrackCand::mcTrackId_
private

if MC simulation, store the mc track id here

Definition at line 230 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 230 of file TrackCand.h

Referenced by getMcTrackId(), Print(), setMcTrackId(), and swap().

int genfit::TrackCand::pdg_
private

particle data groupe's id for a particle

Definition at line 231 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 231 of file TrackCand.h

Referenced by getPdgCode(), Print(), set6DSeed(), setPdgCode(), setPosMomSeed(), swap(), and TrackCand().

double genfit::TrackCand::q_
private

the charge of the particle in units of elementary charge

Definition at line 236 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 236 of file TrackCand.h

Referenced by getChargeSeed(), Print(), set6DSeed(), setPdgCode(), setPosMomSeed(), and swap().

TVectorD genfit::TrackCand::state6D_
private

global 6D position plus momentum state

Definition at line 234 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 234 of file TrackCand.h

Referenced by getMomSeed(), getPosSeed(), getStateSeed(), Print(), set6DSeed(), set6DSeedAndPdgCode(), setPosMomSeed(), setPosMomSeedAndPdgCode(), and swap().

double genfit::TrackCand::time_
private

Time at which the seed is given

Definition at line 233 of file TrackCand.h.

View newest version in sPHENIX GitHub at line 233 of file TrackCand.h

Referenced by getTimeSeed(), setTime6DSeed(), setTime6DSeedAndPdgCode(), setTimePosMomSeed(), setTimePosMomSeedAndPdgCode(), setTimeSeed(), and swap().

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