Belle II Software  release-08-01-10
PlanarMeasurement Class Reference

Measurement class implementing a planar hit geometry (1 or 2D). More...

#include <PlanarMeasurement.h>

Inheritance diagram for PlanarMeasurement:
Collaboration diagram for PlanarMeasurement:

Public Member Functions

 PlanarMeasurement (int nDim=1)
 
 PlanarMeasurement (const TVectorD &rawHitCoords, const TMatrixDSym &rawHitCov, int detId, int hitId, TrackPoint *trackPoint)
 
virtual AbsMeasurementclone () const override
 Deep copy ctor for polymorphic class.
 
int getPlaneId () const
 
virtual SharedPlanePtr constructPlane (const StateOnPlane &state) const override
 Construct (virtual) detector plane (use state's AbsTrackRep). More...
 
virtual std::vector< MeasurementOnPlane * > constructMeasurementsOnPlane (const StateOnPlane &state) const override
 Construct MeasurementOnPlane on plane of the state and wrt the states TrackRep. More...
 
virtual const AbsHMatrixconstructHMatrix (const AbsTrackRep *) const override
 Returns a new AbsHMatrix object. More...
 
virtual void setPlane (const SharedPlanePtr &physicalPlane, int planeId=-1)
 
void setStripV (bool v=true)
 Use if the coordinate for 1D hits measured in V direction. More...
 
TrackPointgetTrackPoint () const
 
void setTrackPoint (TrackPoint *tp)
 
const TVectorD & getRawHitCoords () const
 
TVectorD & getRawHitCoords ()
 
const TMatrixDSym & getRawHitCov () const
 
TMatrixDSym & getRawHitCov ()
 
int getDetId () const
 
int getHitId () const
 
virtual bool isLeftRightMeasurement () const
 If the AbsMeasurement is a wire hit, the left/right resolution will be used.
 
virtual int getLeftRightResolution () const
 
unsigned int getDim () const
 
void setRawHitCoords (const TVectorD &coords)
 
void setRawHitCov (const TMatrixDSym &cov)
 
void setDetId (int detId)
 
void setHitId (int hitId)
 
virtual void Print (const Option_t *="") const
 

Protected Attributes

SharedPlanePtr physicalPlane_
 
int planeId_
 This is persistent, but '!' makes ROOT shut up.
 
bool stripV_
 
TVectorD rawHitCoords_
 
TMatrixDSym rawHitCov_
 
int detId_
 
int hitId_
 
TrackPointtrackPoint_
 Pointer to TrackPoint where the measurement belongs to.
 

Detailed Description

Measurement class implementing a planar hit geometry (1 or 2D).

Author
Christian Höppner (Technische Universität München, original author)
Sebastian Neubert (Technische Universität München, original author)
Johannes Rauch (Technische Universität München, original author)

The main feature of this type of hit is, that the detector plane is defined by the detector hardware.

Definition at line 44 of file PlanarMeasurement.h.

Member Function Documentation

◆ constructHMatrix()

const AbsHMatrix * constructHMatrix ( const AbsTrackRep ) const
overridevirtual

Returns a new AbsHMatrix object.

Caller must take ownership.

Implements AbsMeasurement.

Reimplemented in PlanarMomentumMeasurement, SVDRecoHit, PXDRecoHit, and AlignableBKLMRecoHit.

Definition at line 67 of file PlanarMeasurement.cc.

◆ constructMeasurementsOnPlane()

std::vector< MeasurementOnPlane * > constructMeasurementsOnPlane ( const StateOnPlane state) const
overridevirtual

Construct MeasurementOnPlane on plane of the state and wrt the states TrackRep.

The state will usually be the prediction or reference state, and has to be defined AT the measurement. The AbsMeasurement will be projected onto the plane. It's possible to make corrections to the coordinates here (e.g. by using the state coordinates). Usually the vector will contain only one element. But in the case of e.g. a WireMeasurement, it will be 2 (left and right).

Implements AbsMeasurement.

Reimplemented in PlanarVXDMomentumMeasurement< HitType >, SVDRecoHit2D, SVDRecoHit, PXDRecoHit, and AlignableBKLMRecoHit.

Definition at line 55 of file PlanarMeasurement.cc.

◆ constructPlane()

SharedPlanePtr constructPlane ( const StateOnPlane state) const
overridevirtual

Construct (virtual) detector plane (use state's AbsTrackRep).

It's possible to make corrections to the plane here. The state should be defined somewhere near the measurement. For virtual planes, the state will be extrapolated to the POCA to point (SpacepointMeasurement) or line (WireMeasurement), and from this info the plane will be constructed.

Implements AbsMeasurement.

Definition at line 46 of file PlanarMeasurement.cc.

◆ setStripV()

void setStripV ( bool  v = true)
inline

Use if the coordinate for 1D hits measured in V direction.

Per default for 1D planar hits, the coordinate is measured in U direction. With this function you can set it to be measured in V direction. This affects the outcoe of constructHMatrix().

Definition at line 70 of file PlanarMeasurement.h.


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