VZERO/AliVZEROLogicalSignal.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
  17 //  Describes a logical signal
  18 // Used by AliVZEROTriggerSim class
  19 //
  20
  21 #include "AliLog.h"
  22 #include "AliVZEROLogicalSignal.h"
  23
  24 ClassImp(AliVZEROLogicalSignal)
  25
  26 //_____________________________________________________________________________
  27 AliVZEROLogicalSignal::AliVZEROLogicalSignal() : TObject(), fStart(0.), fStop(0.)
  28 {
  29 }
  30 //_____________________________________________________________________________
  31 AliVZEROLogicalSignal::AliVZEROLogicalSignal(Float_t start, Float_t stop) : TObject(), fStart(start), fStop(stop)
  32 {
  33         if(fStart>fStop) AliError("Logical Signal has a Start time AFTER the Stop time");
  34         if(fStart==fStop) AliWarning("Logical Signal has a zero width");
  35 }
  36 //_____________________________________________________________________________
  37 AliVZEROLogicalSignal::AliVZEROLogicalSignal(UShort_t profilClock, UInt_t delay) : TObject(), fStart(0.), fStop(0.)
  38 {
  39         Bool_t word;
  40         Bool_t up=kFALSE;
  41         Bool_t down=kFALSE;
  42
  43         for(int i=0 ; i<5 ; i++) {
  44                 word = (profilClock >> i) & 0x1;
  45                 if(word&&!up) {
  46                         fStart = 5. * i;
  47                         up = kTRUE;
  48                 }
  49                 if(!word&&up&&!down) {
  50                         fStop = 5. * i;
  51                         down = kTRUE;
  52                 }
  53         }
  54         if(!down) fStop = 25.;
  55
  56         fStart += delay*10.e-3; // Add 10 ps par register unit
  57         fStop  += delay*10.e-3;
  58 }
  59 //_____________________________________________________________________________
  60 AliVZEROLogicalSignal::AliVZEROLogicalSignal(const AliVZEROLogicalSignal &signal) :
  61         TObject(), fStart(signal.fStart),
  62         fStop(signal.fStop)
  63 {
  64         // Copy constructor
  65 }
  66
  67 //_____________________________________________________________________________
  68 AliVZEROLogicalSignal::~AliVZEROLogicalSignal(){
  69 }
  70
  71 //_____________________________________________________________________________
  72 AliVZEROLogicalSignal& AliVZEROLogicalSignal::operator =
  73 (const AliVZEROLogicalSignal& signal)
  74 {
  75         fStart = signal.fStart;
  76         fStop  = signal.fStop;
  77         return *this;
  78 }
  79
  80 //_____________________________________________________________________________
  81 AliVZEROLogicalSignal AliVZEROLogicalSignal::operator|(const AliVZEROLogicalSignal& signal) const
  82 {
  83         // Perform the Logical OR of two signals: C = A or B
  84         if((fStart>signal.fStop) || (signal.fStart>fStop))
  85                 AliError(Form("Both signal do not superpose in time.\n  Start(A) = %f Stop(A) = %f\n   Start(B) = %f Stop(B) = %f",fStart, fStop, signal.fStart,signal.fStop));
  86
  87         AliVZEROLogicalSignal result;
  88         if(fStart<signal.fStart) result.fStart = fStart;
  89         else result.fStart = signal.fStart;
  90
  91         if(fStop>signal.fStop) result.fStop = fStop;
  92         else result.fStop = signal.fStop;
  93
  94         return result;
  95 }
  96 //_____________________________________________________________________________
  97 AliVZEROLogicalSignal AliVZEROLogicalSignal::operator&(const AliVZEROLogicalSignal& signal) const
  98 {
  99         // Perform the Logical AND of two signals: C = A and B
 100         if((fStart>signal.fStop) || (signal.fStart>fStop))
 101                 AliError(Form("Both signal do not superpose in time.\n  Start(A) = %f Stop(A) = %f\n   Start(B) = %f Stop(B) = %f",fStart, fStop, signal.fStart,signal.fStop));
 102
 103         AliVZEROLogicalSignal result;
 104         if(fStart>signal.fStart) result.fStart = fStart;
 105         else result.fStart = signal.fStart;
 106
 107         if(fStop<signal.fStop) result.fStop = fStop;
 108         else result.fStop = signal.fStop;
 109
 110         return result;
 111 }
 112
 113 //_____________________________________________________________________________
 114 Bool_t AliVZEROLogicalSignal::IsInCoincidence(Float_t time)
 115 {
 116         Bool_t result = kFALSE;
 117         if((time>fStart) && (time<fStop)) result = kTRUE;
 118         return result;
 119 }