InDet::SCTinformation Class Reference

#include <SCTinformation.h>

Collaboration diagram for InDet::SCTinformation:

Public Member Functions
	SCTinformation ()=default
	SCTinformation (const InDet::SiCluster *cluster, const Amg::Vector3D &strip_start, const Amg::Vector3D &strip_end, const Amg::Vector3D &vec, const double &locx)
const InDet::SiCluster *	cluster () const
const Amg::Vector3D &	strip_center () const
const Amg::Vector3D &	strip_direction () const
const Amg::Vector3D &	traj_direction () const
const Amg::Vector3D &	normal () const
const double &	oneOverStrip () const
const double &	locX () const
double	step (SCTinformation &) const
Amg::Vector3D	position (const double &s) const
void	set (const InDet::SiCluster *CL, const Amg::Vector3D &strip_start, const Amg::Vector3D &strip_end, const Amg::Vector3D &vec, const double &locx)

Private Attributes
const InDet::SiCluster *	m_cluster {}
Amg::Vector3D	m_center
Amg::Vector3D	m_sdir
Amg::Vector3D	m_tdir
Amg::Vector3D	m_normal
double	m_oneOverStrip {}
double	m_locX {}

Detailed Description

Definition at line 25 of file SCTinformation.h.

Constructor & Destructor Documentation

SCTinformation() [1/2]

InDet::SCTinformation::SCTinformation ( )

default

SCTinformation() [2/2]

InDet::SCTinformation::SCTinformation ( const InDet::SiCluster * cluster, const Amg::Vector3D & strip_start, const Amg::Vector3D & strip_end, const Amg::Vector3D & vec, const double & locx )

inline

Definition at line 74 of file SCTinformation.h.

                                                             {
    this->set(cluster, strip_start, strip_end, vec, locx);
  }

Member Function Documentation

cluster()

const InDet::SiCluster * InDet::SCTinformation::cluster ( ) const

inline

Definition at line 40 of file SCTinformation.h.

{return m_cluster;}

locX()

const double & InDet::SCTinformation::locX ( ) const

inline

Definition at line 46 of file SCTinformation.h.

{return m_locX;}

normal()

const Amg::Vector3D & InDet::SCTinformation::normal ( ) const

inline

Definition at line 44 of file SCTinformation.h.

{return m_normal;}

oneOverStrip()

const double & InDet::SCTinformation::oneOverStrip ( ) const

inline

Definition at line 45 of file SCTinformation.h.

{return m_oneOverStrip;}

position()

Amg::Vector3D InDet::SCTinformation::position ( const double & s ) const

inline

Definition at line 103 of file SCTinformation.h.

  {
    return (m_center+(0.5*s)*m_sdir);
  }

set()

void InDet::SCTinformation::set ( const InDet::SiCluster * CL, const Amg::Vector3D & strip_start, const Amg::Vector3D & strip_end, const Amg::Vector3D & vec, const double & locx )

inline

Definition at line 107 of file SCTinformation.h.

                                                        {
    m_cluster = cluster;
    m_center  = 0.5*(strip_start+strip_end); 
    m_sdir    = strip_start-strip_end;       
    m_tdir    = 2.*(m_center-vec);           
    m_normal  = m_sdir.cross(m_tdir);        
    m_oneOverStrip = 1./m_sdir.mag();        
    m_locX = locx;
  }

step()

double InDet::SCTinformation::step ( SCTinformation & In ) const

inline

Definition at line 87 of file SCTinformation.h.

  {
    // this function returns the ratio between the components of the 
    // In normal vector over the strip direction and trajectory direction.
    
    // first evaluate the denominator:
    // a is component of the In normal vector on the strip direction.
    double a = m_sdir.dot(In.m_normal);
    
    // a = 0 if the In.m_normal and m_sdir are perpendicular.
    // If so, return a very big number.
    // Otherwise, evaluate the numerator and return 
    if (a!=0.) return (-m_tdir.dot(In.m_normal)/a);
    else return 10000.;
  }

strip_center()

const Amg::Vector3D & InDet::SCTinformation::strip_center ( ) const

inline

Definition at line 41 of file SCTinformation.h.

{return m_center ;}

strip_direction()

const Amg::Vector3D & InDet::SCTinformation::strip_direction ( ) const

inline

Definition at line 42 of file SCTinformation.h.

{return m_sdir ;}

traj_direction()

const Amg::Vector3D & InDet::SCTinformation::traj_direction ( ) const

inline

Definition at line 43 of file SCTinformation.h.

{return m_tdir ;}

Member Data Documentation

m_center

Amg::Vector3D InDet::SCTinformation::m_center

private

Definition at line 60 of file SCTinformation.h.

m_cluster

const InDet::SiCluster* InDet::SCTinformation::m_cluster {}

private

Definition at line 59 of file SCTinformation.h.

{};     // SCT cluster

m_locX

double InDet::SCTinformation::m_locX {}

private

Definition at line 65 of file SCTinformation.h.

{};                  // cluster local X 

m_normal

Amg::Vector3D InDet::SCTinformation::m_normal

private

Definition at line 63 of file SCTinformation.h.

m_oneOverStrip

double InDet::SCTinformation::m_oneOverStrip {}

private

Definition at line 64 of file SCTinformation.h.

{};          // Invert length of the strip

m_sdir

Amg::Vector3D InDet::SCTinformation::m_sdir

private

Definition at line 61 of file SCTinformation.h.

m_tdir

Amg::Vector3D InDet::SCTinformation::m_tdir

private

Definition at line 62 of file SCTinformation.h.

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

• SCTinformation.h