TwoHitVariables Class Reference

Class that allows the calculation of simple variables to check whether a combination of two hits should be used or discarded in tracking. More...

#include <TwoHitVariables.h>

Collaboration diagram for TwoHitVariables:

Public Member Functions
	TwoHitVariables (const B2Vector3D &oHit, const B2Vector3D &iHit)
	Constructor. More...
void	setHits (const B2Vector3D &oHit, const B2Vector3D &iHit)
	Set hits if not given in constructor of if they need to be changed. More...
double	getCosXY ()
	calculate the cosine of the angle between two vectors in x-y
double	get1DZDistance ()
	get the difference in z between two vectors
double	get1DZDistanceSquared ()
	get the squared difference in z between two vectors
double	get2DXYDistanceSquared ()
	get the squared distance between two vectors in x-y
double	get3DDistanceSquared ()
	get the square of the difference of two vectors
double	getRZSlope ()
	get an estimate for the slope in R-z, similar to theta
double	getDistanceInTimeU (const SpacePoint &outerSpacePoint, const SpacePoint &innerSpacePoint)
	get the time difference of two space points for the u-side measurement More...
double	getDistanceInTimeV (const SpacePoint &outerSpacePoint, const SpacePoint &innerSpacePoint)
	get the time difference of two space points for the v-side measurement More...
void	setBFieldZ (const double bfieldZ=1.5)
	Set the B-Field value used for pT calculations. More...

Private Attributes
double	m_BFieldZ = 1.5
	BField along z to estimate pT.
B2Vector3D	m_oHit
	outermost hit position
B2Vector3D	m_iHit
	innermost hit position

Detailed Description

Class that allows the calculation of simple variables to check whether a combination of two hits should be used or discarded in tracking.

Definition at line 23 of file TwoHitVariables.h.

Constructor & Destructor Documentation

TwoHitVariables()

TwoHitVariables ( const B2Vector3D &  oHit, const B2Vector3D &  iHit  )

inline

Constructor.

Parameters

oHit	B2Vector3D of the outer hit used for calculating the single variables
iHit	B2Vector3D of the inner hit used for calculating the single variables

Definition at line 28 of file TwoHitVariables.h.

                                                                      : m_oHit(oHit), m_iHit(iHit)
      {};

Member Function Documentation

getDistanceInTimeU()

double getDistanceInTimeU ( const SpacePoint &  outerSpacePoint, const SpacePoint &  innerSpacePoint  )

inline

get the time difference of two space points for the u-side measurement

Parameters

outerSpacePoint	outer space point used for calculating the time difference in u
innerSpacePoint	inner space point used for calculating the time difference in u

Definition at line 87 of file TwoHitVariables.h.

getDistanceInTimeV()

double getDistanceInTimeV ( const SpacePoint &  outerSpacePoint, const SpacePoint &  innerSpacePoint  )

inline

get the time difference of two space points for the v-side measurement

Parameters

outerSpacePoint	outer space point used for calculating the time difference in v
innerSpacePoint	inner space point used for calculating the time difference in v

Definition at line 95 of file TwoHitVariables.h.

setBFieldZ()

void setBFieldZ ( const double  bfieldZ = 1.5 )

inline

Set the B-Field value used for pT calculations.

Parameters

bfieldZ

B-Field value to be used

Definition at line 102 of file TwoHitVariables.h.

setHits()

void setHits ( const B2Vector3D &  oHit, const B2Vector3D &  iHit  )

inline

Set hits if not given in constructor of if they need to be changed.

Parameters

oHit	B2Vector3D of the outer hit used for calculating the single variables
iHit	B2Vector3D of the inner hit used for calculating the single variables

Definition at line 34 of file TwoHitVariables.h.

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

• tracking/vxdHoughTracking/filters/pathFilters/include/TwoHitVariables.h