CDCTrack Class Reference

Class representing a sequence of three dimensional reconstructed hits. More...

#include <CDCTrack.h>

Inheritance diagram for CDCTrack:

Collaboration diagram for CDCTrack:

Public Member Functions
	CDCTrack ()=default
	Default constructor for ROOT compatibility.
	CDCTrack (const std::vector< CDCRecoHit3D > &recoHits3D)
	Constructor from a series of hits.
	CDCTrack (const CDCSegment2D &segment)
	Constructor from a two dimensional segment filling the third dimension with 0 values.
bool	operator< (const CDCTrack &track) const
	Comparision of track - no particular order has been defined so far, all tracks are equivalent.
std::vector< CDCSegment3D >	splitIntoSegments () const
	Splits the track into segments. More...
ISuperLayer	getStartISuperLayer () const
	Getter for the superlayer id the track starts from.
ISuperLayer	getEndISuperLayer () const
	Getter for the superlayer id the track ends in.
const Vector3D &	getStartRecoPos3D () const
	Getter for the position of the first reconstructed hit.
const Vector3D &	getEndRecoPos3D () const
	Getter for the position of the last reconstructed hit.
void	setStartTrajectory3D (const CDCTrajectory3D &startTrajectory3D)
	Setter for the two dimensional trajectory. More...
void	setEndTrajectory3D (const CDCTrajectory3D &endTrajectory3D)
	Setter for the three dimensional trajectory. More...
const CDCTrajectory3D &	getStartTrajectory3D () const
	Getter for the two dimensional trajectory. More...
const CDCTrajectory3D &	getEndTrajectory3D () const
	Getter for the three dimensional trajectory. More...
AutomatonCell &	getAutomatonCell () const
	Mutable getter for the automaton cell.
AutomatonCell *	operator-> () const
	Indirection to the automaton cell for easier access to the flags.
void	unsetAndForwardMaskedFlag () const
	Unset the masked flag of the automaton cell of this segment and of all contained wire hits.
void	setAndForwardMaskedFlag () const
	Set the masked flag of the automaton cell of this segment and forward the masked flag to all contained wire hits.
void	receiveMaskedFlag () const
	Check all contained wire hits if one has the masked flag. More...
void	forwardTakenFlag (bool takenFlag=true) const
	Set the taken flag of all hits belonging to this track to the given value (default true), but do not touch the flag of the track itself.
void	sortByArcLength2D ()
	Sort the recoHits according to their perpS information.
void	shiftToPositiveArcLengths2D (bool doForAllTracks=false)
	Set all arcLengths to have positive values by shifting them by pi*radius if they are negative. More...
void	reverse ()
	Reverse the track inplace.
CDCTrack	reversed () const
	Return a reversed copy of the track.
MayBePtr< const CDCRecoHit3D >	find (const CDCWireHit &wireHit) const
	Finds the first CDCRecoHit3D that is based on the given wire hit - nullptr if none.
void	setHasMatchingSegment (bool hasMatchingSegment=true)
	Set the flag which indicates that the track has a matching segment (probably only used in the SegmentTrackCombiner).
bool	getHasMatchingSegment () const
	Get a flag which indicates that the track has a matching segment (probably set in the SegmentTrackCombiner). More...
float	getQualityIndicator () const
	Get the multivariate quality indicator in [0, 1] attached the CDCTrack.
void	setQualityIndicator (const float qualityIndicator)
	Set the multivariate quality indicator in [0, 1] attached the CDCTrack.

Static Public Member Functions
static CDCTrack	condense (const Path< const CDCTrack > &trackPath)
	Concats several tracks from a path. More...
static CDCTrack	condense (const Path< const CDCSegmentTriple > &segmentTriplePath)
	Reconstructs the hit content of the segment triple track to a CDCTrack averaging overlapping parts.
static CDCTrack	condense (const Path< const CDCSegmentPair > &segmentPairPath)
	Reconstructs the hit content of the axial stereo segment pair path to a CDCTrack averaging overlapping parts.

Public Attributes
T	elements
	STL member.

Private Attributes
AutomatonCell	m_automatonCell
	Memory for the automaton cell.
CDCTrajectory3D	m_startTrajectory3D
	Memory for the three dimensional trajectory at the start of the track.
CDCTrajectory3D	m_endTrajectory3D
	Memory for the three dimensional trajectory at the end of the track.
bool	m_hasMatchingSegment = false
	Flag which indicates that the track had a matching segment (can be used for filter decisions)
float	m_qualityIndicator = NAN
	Multivariate classifier output in [0, 1] correlated with probability that track is good match. More...

Detailed Description

Class representing a sequence of three dimensional reconstructed hits.

Definition at line 41 of file CDCTrack.h.

Member Function Documentation

condense()

CDCTrack condense ( const Path< const CDCTrack > &  trackPath )

static

Concats several tracks from a path.

FIXME : arc lengths are not set properly

Definition at line 164 of file CDCTrack.cc.

{
  if (trackPath.empty()) {
    return CDCTrack();
  } else if (trackPath.size() == 1) {
    return CDCTrack(*(trackPath[0]));
  } else {
    CDCTrack result;
    for (const CDCTrack* track :  trackPath) {
      for (const CDCRecoHit3D& recoHit3D : *track) {
        result.push_back(recoHit3D);
      }
    }
 
    CDCTrajectory3D startTrajectory3D = trackPath.front()->getStartTrajectory3D();
    CDCTrajectory3D endTrajectory3D = trackPath.back()->getStartTrajectory3D();
 
    double resetPerpSOffset =
      startTrajectory3D.setLocalOrigin(result.front().getRecoPos3D());
    result.setStartTrajectory3D(startTrajectory3D);
 
    endTrajectory3D.setLocalOrigin(result.back().getRecoPos3D());
    result.setEndTrajectory3D(endTrajectory3D);
 
    for (CDCRecoHit3D& recoHit3D : result) {
      recoHit3D.shiftArcLength2D(-resetPerpSOffset);
    }
 
    return result;
  }
}

getEndTrajectory3D()

const CDCTrajectory3D& getEndTrajectory3D ( ) const

inline

Getter for the three dimensional trajectory.

The trajectory should start at the END of the track and follow its direction.

Definition at line 119 of file CDCTrack.h.

      {
        return m_endTrajectory3D;
      }

getHasMatchingSegment()

bool getHasMatchingSegment ( ) const

inline

Get a flag which indicates that the track has a matching segment (probably set in the SegmentTrackCombiner).

This flag can be used for filter decisions (e.g. if the track is fake).

Definition at line 182 of file CDCTrack.h.

getStartTrajectory3D()

const CDCTrajectory3D& getStartTrajectory3D ( ) const

inline

Getter for the two dimensional trajectory.

The trajectory should start at the start of the track and follow its direction.

Definition at line 112 of file CDCTrack.h.

receiveMaskedFlag()

void receiveMaskedFlag

(

)

const

Check all contained wire hits if one has the masked flag.

Set the masked flag of this segment in case at least one of the contained wire hits is flagged as masked.

Definition at line 394 of file CDCTrack.cc.

setEndTrajectory3D()

void setEndTrajectory3D ( const CDCTrajectory3D &  endTrajectory3D )

inline

Setter for the three dimensional trajectory.

The trajectory should start at the END of the track and follow its direction.

Definition at line 105 of file CDCTrack.h.

setStartTrajectory3D()

void setStartTrajectory3D ( const CDCTrajectory3D &  startTrajectory3D )

inline

Setter for the two dimensional trajectory.

The trajectory should start at the start of the track and follow its direction.

Definition at line 98 of file CDCTrack.h.

shiftToPositiveArcLengths2D()

void shiftToPositiveArcLengths2D

(

bool

doForAllTracks = false

)

Set all arcLengths to have positive values by shifting them by pi*radius if they are negative.

This can only be done if the radius is not infinity (for example cosmics). The flag can be used to do this for all tracks (default is to do this only for curlers)

Definition at line 423 of file CDCTrack.cc.

splitIntoSegments()

std::vector< CDCSegment3D > splitIntoSegments

(

)

const

Splits the track into segments.

Note : No trajectory information is copied

Definition at line 321 of file CDCTrack.cc.

Member Data Documentation

m_qualityIndicator

float m_qualityIndicator = NAN

private

Multivariate classifier output in [0, 1] correlated with probability that track is good match.

Used to reject fakes and clones. Implemented here to be forwarded to RecoTrack.

Definition at line 214 of file CDCTrack.h.

---

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

• tracking/trackFindingCDC/eventdata/tracks/include/CDCTrack.h
• tracking/trackFindingCDC/eventdata/tracks/src/CDCTrack.cc