Preprocessor classes for SPD (Paul Nilsson)

[u/mrichter/AliRoot.git] / ITS / AliITSChannelSPD.cxx

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/*
$Log$
*/

///////////////////////////////////////////////////////////////////////////
// AliITSChannelSPD implementation by P. Nilsson 2005
// AUTHOR/CONTACT: Paul.Nilsson@cern.ch
//
// Objects of this class are stored in TObjArrays and should be
// interpreted as "bad" channels, i.e. either noisy or dead channels
// depending on where they are stored.
//
// A channel has the structure:
//
//                           Int_t fColumn:    Column in the SPD module
//                           Int_t fRow:       Row in the SPD module
//
// The class is used by the AliITSPreprocessorSPD class to store noisy
// and dead channels in the calibration database for the SPD.
//
// A channel can be compared with other channels (the equality operator
// is defined). This is e.g. useful for the clustering algorithm. A noisy
// channel should not be used in the clustering
///////////////////////////////////////////////////////////////////////////

#include "AliITSChannelSPD.h"

ClassImp(AliITSChannelSPD)

//__________________________________________________________________________
AliITSChannelSPD::AliITSChannelSPD(void) :
fColumn(-1),
fRow(-1)
{
  // Default constructor
}


//__________________________________________________________________________
AliITSChannelSPD::AliITSChannelSPD(const AliITSChannelSPD &ch) :
  TObject(ch)
{
  // Copy constructor

  fColumn = ch.fColumn;
  fRow = ch.fRow;
}

//__________________________________________________________________________
AliITSChannelSPD& AliITSChannelSPD::operator=(const AliITSChannelSPD &ch)
{
  // Assignment operator
  
  // Guard against self-assignment
  if (this != &ch)
    {
      // Copy the data members
      fColumn = ch.fColumn;
      fRow = ch.fRow;
    }
  return *this;
}

//__________________________________________________________________________
Bool_t AliITSChannelSPD::operator==(const AliITSChannelSPD &channel) const
{
  // Equality operator
  // For comparisons between AliITSChannelSPD objects

  return ( ((fColumn == channel.fColumn) && (fRow == channel.fRow)) );
}

//__________________________________________________________________________
AliITSChannelSPD::AliITSChannelSPD(const Int_t column, const Int_t row)
{
  // Constructor for already existing channel

  fColumn = column;
  fRow = row;
}