TOPASICPedestals Class Reference

Calibration constants of a single ASIC window: pedestals. More...

#include <TOPASICPedestals.h>

Inheritance diagram for TOPASICPedestals:

Public Types
enum	{   c_WindowSize = 64 ,   c_Bits = 9 }
	Various constants. More...

Public Member Functions
	TOPASICPedestals ()
	Default constructor.
	TOPASICPedestals (unsigned short asicWindow)
	Constructor with ASIC window number.
int	setPedestals (const TProfile *profile, double average=0)
	Set pedestals from profile histogram with c_WindowSize bins.
unsigned	getASICWindow () const
	Return ASIC window number.
unsigned	getSize () const
	Return window size (number of pedestal samples)
float	getValue (unsigned i) const
	Return pedestal value of i-th sample.
float	getError (unsigned i) const
	Return pedestal uncertainly of i-th sample.
bool	isValid (unsigned i) const
	Check whether the pedestal of i-th sample is valid.
unsigned	getNumofUnvalid () const
	Return number of un-valid pedestals (e.g.

Private Member Functions
unsigned	getOptimizedOffset (const std::vector< unsigned > &values, const std::vector< unsigned > &errors, unsigned maxDif, unsigned maxErr)
	Return the offset that can allow for the maximal number of good pedestal samples.
	ClassDef (TOPASICPedestals, 1)
	ClassDef.

Private Attributes
unsigned short	m_asicWindow
	ASIC window number.
unsigned short	m_offset
	common pedestal offset
unsigned short	m_pedestals [c_WindowSize]
	pedestals (packed: value, error)

Detailed Description

Calibration constants of a single ASIC window: pedestals.

Definition at line 24 of file TOPASICPedestals.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

Various constants.

Enumerator
c_WindowSize	number of samples
c_Bits	number of bits reserved for pedestal value

Definition at line 30 of file TOPASICPedestals.h.

         {c_WindowSize = 64, 
          c_Bits       = 9   
         };

Constructor & Destructor Documentation

TOPASICPedestals() [1/2]

TOPASICPedestals ( )

inline

Default constructor.

Definition at line 37 of file TOPASICPedestals.h.

                      : m_asicWindow(0), m_offset(0)
    {
      for (unsigned i = 0; i < c_WindowSize; i++) m_pedestals[i] = 0;
    }

TOPASICPedestals() [2/2]

TOPASICPedestals ( unsigned short  asicWindow )

inlineexplicit

Constructor with ASIC window number.

Parameters

asicWindow

ASIC window number

Definition at line 46 of file TOPASICPedestals.h.

                                                        : m_asicWindow(asicWindow),
      m_offset(0)
    {
      for (unsigned i = 0; i < c_WindowSize; i++) m_pedestals[i] = 0;
    }

Member Function Documentation

getASICWindow()

unsigned getASICWindow ( ) const

inline

Return ASIC window number.

Returns

window number

Definition at line 64 of file TOPASICPedestals.h.

{return m_asicWindow;}

getError()

float getError ( unsigned  i ) const

inline

Return pedestal uncertainly of i-th sample.

Parameters

i	sample number

Returns

pedestal uncertainty

Definition at line 92 of file TOPASICPedestals.h.

    {
      if (i < c_WindowSize) {
        return (m_pedestals[i] >> c_Bits);
      }
      return 0;
    }

getNumofUnvalid()

unsigned getNumofUnvalid ( ) const

inline

Return number of un-valid pedestals (e.g.

those cannot be packed into 16-bit word)

Returns

number of un-valid pedestals

Definition at line 118 of file TOPASICPedestals.h.

    {
      unsigned bad = 0;
      for (int i = 0; i < c_WindowSize; i++) {
        if (!isValid(i)) bad++;
      }
      return bad;
    }

getSize()

unsigned getSize ( ) const

inline

Return window size (number of pedestal samples)

Returns

window size

Definition at line 70 of file TOPASICPedestals.h.

{return c_WindowSize;}

getValue()

float getValue ( unsigned  i ) const

inline

Return pedestal value of i-th sample.

Parameters

i	sample number

Returns

pedestal value

Definition at line 77 of file TOPASICPedestals.h.

    {
      if (i < c_WindowSize) {
        unsigned short mask = (1 << c_Bits);
        mask--;
        return (m_pedestals[i] & mask) + m_offset;
      }
      return 0;
    }

isValid()

bool isValid ( unsigned  i ) const

inline

Check whether the pedestal of i-th sample is valid.

Parameters

i	sample number

Returns

true if available

Definition at line 105 of file TOPASICPedestals.h.

    {
      if (i < c_WindowSize) {
        return (m_pedestals[i] != 0);
      }
      return false;
    }

Member Data Documentation

m_asicWindow

unsigned short m_asicWindow

private

ASIC window number.

Definition at line 142 of file TOPASICPedestals.h.

m_offset

unsigned short m_offset

private

common pedestal offset

Definition at line 143 of file TOPASICPedestals.h.

m_pedestals

unsigned short m_pedestals[c_WindowSize]

private

pedestals (packed: value, error)

Definition at line 144 of file TOPASICPedestals.h.

---

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

• top/dbobjects/include/TOPASICPedestals.h
• top/dbobjects/src/TOPASICPedestals.cc