CbmKfTrackFitter::TrajectoryNode Struct Reference

#include <CbmKfTrackFitter.h>

Collaboration diagram for CbmKfTrackFitter::TrajectoryNode:

Public Attributes
double	fZ {0.}
	Z coordinate of the node.
cbm::algo::kf::TrackParamD	fParamUp {}
	fitted track parameters upstream the node
cbm::algo::kf::TrackParamD	fParamDn {}
	fitted track parameters downstream the node
int	fMaterialLayer {-1}
	== Material information (if present)
double	fRadThick {0.}
cbm::algo::kf::MeasurementXy< double >	fMxy {}
	== Hit information ( if present )
cbm::algo::kf::MeasurementTime< double >	fMt {}
	time measurement at fZ
bool	fIsXySet {false}
	== Flags etc
bool	fIsTimeSet {false}
	true if the time measurement is set
bool	fIsRadThickFixed {false}
	true if the radiation thickness is fixed to the fRadThick value
bool	fIsFitted {false}
	true if the track parameters at the node are fitted
ECbmModuleId	fHitSystemId {ECbmModuleId::kNotExist}
	== External references
int	fHitAddress {-1}
	detector ID of the hit
int	fHitIndex {-1}
	hit index in the detector hit array
int	fReference1 {-1}
	some reference can be set by the user
int	fReference2 {-1}
	some reference can be set by the user

Detailed Description

The class to fit the tracks with the Kalman Filter with explicit linearisation of the equations

A node on the trajectory where the track parameters are: a) measured and / or b) scattered and / or c) need to be estimated The nodes are expected to be ordered by increasing Z. It can be done via CbmKfTrackFitter::Trajectory::MakeConsistent() method.

When fIsFitted flag is set (e.g. by the fitter), the node track parameters are used for the trajectory linearisation during the fit.

When fitting w/o smoother we assume that smoothed parameters are always better than partially fitted parameters

TODO: proper interface and description

Definition at line 52 of file CbmKfTrackFitter.h.

Member Data Documentation

fHitAddress

int CbmKfTrackFitter::TrajectoryNode::fHitAddress {-1}

detector ID of the hit

Definition at line 82 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::CreateGlobalTrack().

fHitIndex

int CbmKfTrackFitter::TrajectoryNode::fHitIndex {-1}

hit index in the detector hit array

Definition at line 83 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::CreateGlobalTrack().

fHitSystemId

ECbmModuleId CbmKfTrackFitter::TrajectoryNode::fHitSystemId {ECbmModuleId::kNotExist}

== External references

detector system ID of the hit

Definition at line 81 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::CreateGlobalTrack().

fIsFitted

bool CbmKfTrackFitter::TrajectoryNode::fIsFitted {false}

true if the track parameters at the node are fitted

Definition at line 78 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::CostFunction(), CbmKfTrackFitter::CreateGlobalTrack(), CbmBbaAlignmentTask::Exec(), CbmBbaAlignmentTask::Finish(), and CbmKfTrackFitter::FitTrajectory().

fIsRadThickFixed

bool CbmKfTrackFitter::TrajectoryNode::fIsRadThickFixed {false}

true if the radiation thickness is fixed to the fRadThick value

Definition at line 77 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::AddMaterialEffects(), CbmKfTrackFitter::CreateGlobalTrack(), and CbmBbaAlignmentTask::Exec().

fIsTimeSet

bool CbmKfTrackFitter::TrajectoryNode::fIsTimeSet {false}

true if the time measurement is set

Definition at line 76 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::CreateGlobalTrack(), CbmKfTrackFitter::FilterFirstMeasurement(), and CbmKfTrackFitter::FitTrajectory().

fIsXySet

bool CbmKfTrackFitter::TrajectoryNode::fIsXySet {false}

== Flags etc

true if the XY measurement is set

Definition at line 75 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmKfTrackFitter::CreateGlobalTrack(), CbmBbaAlignmentTask::Exec(), CbmRecoQaTask::Exec(), CbmKfTrackFitter::FilterFirstMeasurement(), CbmBbaAlignmentTask::Finish(), and CbmKfTrackFitter::FitTrajectory().

fMaterialLayer

int CbmKfTrackFitter::TrajectoryNode::fMaterialLayer {-1}

== Material information (if present)

index of the material layer. Currently equal to the active tracking station index

Definition at line 62 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::AddMaterialEffects(), and CbmKfTrackFitter::CreateGlobalTrack().

fMt

cbm::algo::kf::MeasurementTime<double> CbmKfTrackFitter::TrajectoryNode::fMt {}

time measurement at fZ

Definition at line 72 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::CreateGlobalTrack(), CbmKfTrackFitter::FilterFirstMeasurement(), CbmKfTrackFitter::FitTrajectory(), and CbmRecoQaTask::View::Load().

fMxy

cbm::algo::kf::MeasurementXy<double> CbmKfTrackFitter::TrajectoryNode::fMxy {}

== Hit information ( if present )

XY-measurement at fZ

Definition at line 70 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmKfTrackFitter::CreateGlobalTrack(), CbmBbaAlignmentTask::Exec(), CbmKfTrackFitter::FilterFirstMeasurement(), CbmBbaAlignmentTask::Finish(), CbmKfTrackFitter::FitTrajectory(), and CbmRecoQaTask::View::Load().

fParamDn

cbm::algo::kf::TrackParamD CbmKfTrackFitter::TrajectoryNode::fParamDn {}

fitted track parameters downstream the node

Definition at line 57 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmBbaAlignmentTask::Exec(), CbmKfTrackFitter::FilterFirstMeasurement(), CbmBbaAlignmentTask::Finish(), and CbmKfTrackFitter::FitTrajectory().

fParamUp

cbm::algo::kf::TrackParamD CbmKfTrackFitter::TrajectoryNode::fParamUp {}

fitted track parameters upstream the node

Definition at line 56 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmKfTrackFitter::FitTrajectory(), and CbmRecoQaTask::View::Load().

fRadThick

double CbmKfTrackFitter::TrajectoryNode::fRadThick {0.}

radiation thickness of the material associated with the node

• taken from the material map or set externally

Definition at line 66 of file CbmKfTrackFitter.h.

Referenced by CbmKfTrackFitter::AddMaterialEffects(), CbmKfTrackFitter::CreateGlobalTrack(), and CbmBbaAlignmentTask::Exec().

fReference1

int CbmKfTrackFitter::TrajectoryNode::fReference1 {-1}

some reference can be set by the user

Definition at line 85 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmRecoQaTask::Exec(), and CbmBbaAlignmentTask::Finish().

fReference2

int CbmKfTrackFitter::TrajectoryNode::fReference2 {-1}

some reference can be set by the user

Definition at line 86 of file CbmKfTrackFitter.h.

fZ

double CbmKfTrackFitter::TrajectoryNode::fZ {0.}

Z coordinate of the node.

Definition at line 54 of file CbmKfTrackFitter.h.

Referenced by CbmBbaAlignmentTask::ApplyAlignment(), CbmKfTrackFitter::CreateGlobalTrack(), CbmRecoQaTask::Exec(), CbmKfTrackFitter::FilterFirstMeasurement(), and CbmKfTrackFitter::FitTrajectory().

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The documentation for this struct was generated from the following file:

• CbmKfTrackFitter.h