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EVENT::TrackState Class Referenceabstract

The LCIO TrackState class. More...

#include <pre-generated/EVENT/TrackState.h>

Inheritance diagram for EVENT::TrackState:
EVENT::LCObject lcrtrel::LCRTRelations IMPL::TrackStateImpl IOIMPL::TrackStateIOImpl

Public Types

typedef TrackState lcobject_type
 Useful typedef for template programming with LCIO.
 

Public Member Functions

virtual ~TrackState ()
 Destructor.
 
virtual int getLocation () const =0
 The location of the track state. More...
 
virtual float getD0 () const =0
 Impact paramter of the track in (r-phi).
 
virtual float getPhi () const =0
 Phi of the track at the reference point. More...
 
virtual float getOmega () const =0
 Omega is the signed curvature of the track in [1/mm]. More...
 
virtual float getZ0 () const =0
 Impact paramter of the track in (r-z).
 
virtual float getTanLambda () const =0
 Lambda is the dip angle of the track in r-z at the reference point. More...
 
virtual const FloatVecgetCovMatrix () const =0
 Covariance matrix of the track parameters. More...
 
virtual const float * getReferencePoint () const =0
 Reference point of the track parameters, e.g. More...
 
- Public Member Functions inherited from EVENT::LCObject
virtual ~LCObject ()
 Destructor.
 
virtual int id () const =0
 Returns an object id for internal (debugging) use in LCIO.
 
virtual LCObjectclone () const
 Returns an object id for internal (debugging) use in LCIO. More...
 
- Public Member Functions inherited from lcrtrel::LCRTRelations
template<class V >
V::ext_type ext ()
 Provides access to an extension object - the type and ownership is defined by the class V which should be a subtype of LCExtension, LCOwnedExtension, LCExtensionVector, LCExtensionList,...
 
template<class V >
const V::ext_type ext () const
 
template<class V >
V::rel_type rel ()
 Provides read access to relations - the object types and their connectivity are defined by the class V which has to be a subtype of either LC1To1Relation, LC1ToNRelation or LCNToNRelation.
 

Static Public Attributes

static const int AtOther = 0
 
static const int AtIP = 1
 
static const int AtFirstHit = 2
 
static const int AtLastHit = 3
 
static const int AtCalorimeter = 4
 
static const int AtVertex = 5
 
static const int LastLocation = AtVertex
 

Additional Inherited Members

- Protected Member Functions inherited from lcrtrel::LCRTRelations
template<class V >
V::ptr & ptr () const
 Returns the reference to the pointer to the extension/relation object.
 

Detailed Description

The LCIO TrackState class.

Author
gaede, engels
Version
$Id:$

Member Function Documentation

virtual const FloatVec& EVENT::TrackState::getCovMatrix ( ) const
pure virtual

Covariance matrix of the track parameters.

Stored as lower triangle matrix where the order of parameters is: d0, phi, omega, z0, tan(lambda). So we have cov(d0,d0), cov( phi, d0 ), cov( phi, phi), ...

Implemented in IMPL::TrackStateImpl.

virtual int EVENT::TrackState::getLocation ( ) const
pure virtual

The location of the track state.

Location can be set to: TrackState::AtIP, TrackState::AtFirstHit, TrackState::AtLastHit, TrackState::AtCalorimeter, TrackState::AtVertex, TrackState::AtOther

Implemented in IMPL::TrackStateImpl.

Referenced by IMPL::TrackStateImpl::TrackStateImpl().

virtual float EVENT::TrackState::getOmega ( ) const
pure virtual

Omega is the signed curvature of the track in [1/mm].

The sign is that of the particle's charge.

Implemented in IMPL::TrackStateImpl.

virtual float EVENT::TrackState::getPhi ( ) const
pure virtual

Phi of the track at the reference point.

See Also
getReferencePoint

Implemented in IMPL::TrackStateImpl.

virtual const float* EVENT::TrackState::getReferencePoint ( ) const
pure virtual

Reference point of the track parameters, e.g.

the origin at the IP, or the position of the first/last hits or the entry point into the calorimeter.

Implemented in IMPL::TrackStateImpl.

Referenced by IMPL::TrackStateImpl::TrackStateImpl().

virtual float EVENT::TrackState::getTanLambda ( ) const
pure virtual

Lambda is the dip angle of the track in r-z at the reference point.

See Also
getReferencePoint

Implemented in IMPL::TrackStateImpl.


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