FMD/AliFMDPoissonAlgorithm.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 //____________________________________________________________________
  19 //
  20 // Base class for FMD poisson algorithms.
  21 //
  22 // Derived classes will implement various ways of reconstructing the
  23 // charge particle multiplicity in the FMD.
  24 //
  25 #include "AliFMDPoissonAlgorithm.h"     // ALIFMDPOISSONALGORITHM_H
  26 #include "AliFMDDigit.h"                // ALIFMDDIGIT_H
  27
  28 //____________________________________________________________________
  29 ClassImp(AliFMDPoissonAlgorithm);
  30
  31 //____________________________________________________________________
  32 AliFMDPoissonAlgorithm::AliFMDPoissonAlgorithm()
  33   : AliFMDReconstructionAlgorithm("Poisson", "Poisson")
  34 {}
  35
  36
  37 //____________________________________________________________________
  38 void
  39 AliFMDPoissonAlgorithm::Reset()
  40 {
  41   // Reset internal data
  42   fTotal = 0;
  43   fEmpty.Reset(kFALSE);
  44 }
  45
  46 //____________________________________________________________________
  47 void
  48 AliFMDPoissonAlgorithm::ProcessDigit(AliFMDDigit* digit,
  49                                      Float_t eta, Float_t phi,
  50                                      UShort_t count)
  51 {
  52   // Process one digit.
  53   //
  54   // Parameters:
  55   //
  56   //   digit            Digit to process
  57   //   ipZ              Z--coordinate of the primary interaction
  58   //                    vertex of this event
  59   //
  60   if (!digit) return;
  61   fTotal++;
  62   if (charge < threshold) fEmpty(digit->Detector() - 1,
  63                                  digit->Ring(),
  64                                  digit->Setctor(),
  65                                  digit->Strip()) = kTRUE;
  66 }
  67
  68
  69 //____________________________________________________________________
  70 //
  71 // EOF
  72 //