Helper struct to collect information about the 1D projection of a Pixel cluster. More...

#include <ClusterProjection.h>

Public Member Functions
	ClusterProjection ()
	Constructor.

void	add (unsigned int cell, float position, float charge)
	Add Pixel information to the projection.

void	finalize ()
	Finish calculation of center of gravity and set correct cluster size.

double	getPos () const
	Return the projected position of the cluster.

double	getError () const
	Return the error of the cluster.

unsigned int	getSize () const
	Return the projected size of the cluster.

unsigned int	getMinCell () const
	Return the minimum cell part of the cluster.

unsigned int	getMaxCell () const
	Return the maximum cell part of the cluster.

double	getCharge () const
	Return the total charge of the cluster.

double	getMinCharge () const
	Return the charge in the minimum cell of the cluster.

double	getMaxCharge () const
	Return the charge in the maximum cell of the cluster.

double	getCenterCharge () const
	Return the center charge of the cluster, that is total charge minus minimum and maximum cell charge.

double	getMinPos () const
	Return the position of the minimum cell of the cluster.

double	getMaxPos () const
	Return the position of the maximum cell of the cluster.

void	setPos (double pos)
	Set the position of the cluster.

void	setError (double error)
	Set the error of the cluster.

Private Attributes
double	m_pos
	Center of gravity of the cluster.

unsigned int	m_min
	Minimum row or column of the cluster.

unsigned int	m_max
	Maximum row or column of the cluster.

double	m_minCharge
	Charge collected in the minimum row/column.

double	m_maxCharge
	Charge collected in the maximum row/column.

double	m_minPos
	Position of the minimum row/column.

double	m_maxPos
	Position of the maximum row/column.

double	m_error
	Position error of the cluster.

double	m_charge
	Charge of the full cluster.

unsigned int	m_size
	Projected size of the cluster.

Detailed Description

Helper struct to collect information about the 1D projection of a Pixel cluster.

This class just collects some information necessary to calculate the cluster position and errors: the minimum and maximum pixel row or column as well as the corresponding sensor position and charge in that row or column and the weighted (by charge) sum of positions for center of gravity determination

Definition at line 26 of file ClusterProjection.h.

Constructor & Destructor Documentation

◆ ClusterProjection()

ClusterProjection ( )

inline

Constructor.

Definition at line 29 of file ClusterProjection.h.

                         : m_pos(0), m_min(-1), m_max(0), m_minCharge(0),
        m_maxCharge(0), m_minPos(0), m_maxPos(0), m_error(0), m_charge(0),
        m_size(0) {}

Member Function Documentation

◆ add()

void add	(	unsigned int	cell,
		float	position,
		float	charge
	)

inline

Add Pixel information to the projection.

This will adjust the minimal and maximal coordinates and the charge collected at these coordinates as well as increment the weighted position to calculate the center of gravity

Parameters

cell	pixel coordinate
position	pixel center position on the sensor
charge	charge in that pixel

Definition at line 101 of file ClusterProjection.h.

    {
      //If the new cell is smaller than the last minimum cell than change that
      if (cell < m_min) {
        m_min = cell;
        m_minCharge = charge;
        m_minPos = position;
      } else if (cell == m_min) {
        //But if it is equal to the last known minimum cell sum up the charge
        m_minCharge += charge;
      }
      //Same as above for maximum cell.
      if (cell > m_max || m_max == 0) {
        m_max = cell;
        m_maxCharge = charge;
        m_maxPos = position;
      } else if (cell == m_max) {
        m_maxCharge += charge;
      }
      //Add weighted positions for center of gravity
      m_pos += charge * position;
      m_charge += charge;
    }

◆ finalize()

void finalize ( )

inline

Finish calculation of center of gravity and set correct cluster size.

Should only be used once

Definition at line 43 of file ClusterProjection.h.

      {
        m_pos /= m_charge;
        m_size = m_max - m_min + 1;
      }

◆ getCenterCharge()

double getCenterCharge ( ) const

inline

Return the center charge of the cluster, that is total charge minus minimum and maximum cell charge.

Definition at line 66 of file ClusterProjection.h.

66{ return m_charge - m_minCharge - m_maxCharge; }

◆ getCharge()

double getCharge ( ) const

inline

Return the total charge of the cluster.

Definition at line 60 of file ClusterProjection.h.

60{ return m_charge; }

◆ getError()

double getError ( ) const

inline

Return the error of the cluster.

Definition at line 52 of file ClusterProjection.h.

52{ return m_error; }

◆ getMaxCell()

unsigned int getMaxCell ( ) const

inline

Return the maximum cell part of the cluster.

Definition at line 58 of file ClusterProjection.h.

58{ return m_max; }

◆ getMaxCharge()

double getMaxCharge ( ) const

inline

Return the charge in the maximum cell of the cluster.

Definition at line 64 of file ClusterProjection.h.

64{ return m_maxCharge; }

◆ getMaxPos()

double getMaxPos ( ) const

inline

Return the position of the maximum cell of the cluster.

Definition at line 70 of file ClusterProjection.h.

70{ return m_maxPos; }

◆ getMinCell()

unsigned int getMinCell ( ) const

inline

Return the minimum cell part of the cluster.

Definition at line 56 of file ClusterProjection.h.

56{ return m_min; }

◆ getMinCharge()

double getMinCharge ( ) const

inline

Return the charge in the minimum cell of the cluster.

Definition at line 62 of file ClusterProjection.h.

62{ return m_minCharge; }

◆ getMinPos()

double getMinPos ( ) const

inline

Return the position of the minimum cell of the cluster.

Definition at line 68 of file ClusterProjection.h.

68{ return m_minPos; }

◆ getPos()

double getPos ( ) const

inline

Return the projected position of the cluster.

Should only be used after a call to finalize

Definition at line 50 of file ClusterProjection.h.

50{ return m_pos; }

◆ getSize()

unsigned int getSize ( ) const

inline

Return the projected size of the cluster.

Should only be used after a call to finalize

Definition at line 54 of file ClusterProjection.h.

54{ return m_size; }

◆ setError()

void setError ( double error )

inline

Set the error of the cluster.

Definition at line 75 of file ClusterProjection.h.

75{ m_error = error; }

◆ setPos()

void setPos ( double pos )

inline

Set the position of the cluster.

Should only be used after a call to finalize

Definition at line 73 of file ClusterProjection.h.

73{ m_pos = pos; }

Member Data Documentation

◆ m_charge

double m_charge

private

Charge of the full cluster.

Definition at line 96 of file ClusterProjection.h.

◆ m_error

double m_error

private

Position error of the cluster.

Definition at line 94 of file ClusterProjection.h.

◆ m_max

unsigned int m_max

private

Maximum row or column of the cluster.

Definition at line 84 of file ClusterProjection.h.

◆ m_maxCharge

double m_maxCharge

private

Charge collected in the maximum row/column.

Definition at line 88 of file ClusterProjection.h.

◆ m_maxPos

double m_maxPos

private

Position of the maximum row/column.

Definition at line 92 of file ClusterProjection.h.

◆ m_min

unsigned int m_min

private

Minimum row or column of the cluster.

Definition at line 82 of file ClusterProjection.h.

◆ m_minCharge

double m_minCharge

private

Charge collected in the minimum row/column.

Definition at line 86 of file ClusterProjection.h.

◆ m_minPos

double m_minPos

private

Position of the minimum row/column.

Definition at line 90 of file ClusterProjection.h.

◆ m_pos

double m_pos

private

Center of gravity of the cluster.

Definition at line 80 of file ClusterProjection.h.

◆ m_size

unsigned int m_size

private

Projected size of the cluster.

Definition at line 98 of file ClusterProjection.h.

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

pxd/reconstruction/include/ClusterProjection.h

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ClusterProjection()

Member Function Documentation

◆ add()

◆ finalize()

◆ getCenterCharge()

◆ getCharge()

◆ getError()

◆ getMaxCell()

◆ getMaxCharge()

◆ getMaxPos()

◆ getMinCell()

◆ getMinCharge()

◆ getMinPos()

◆ getPos()

◆ getSize()

◆ setError()

◆ setPos()

Member Data Documentation

◆ m_charge

◆ m_error

◆ m_max

◆ m_maxCharge

◆ m_maxPos

◆ m_min

◆ m_minCharge

◆ m_minPos

◆ m_pos

◆ m_size