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[u/mrichter/AliRoot.git] / EMCAL / AliEMCALRawUtils.h
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ee299369 1#ifndef ALIEMCALRAWUTILS_H
2#define ALIEMCALRAWUTILS_H
3/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
5
6/* $Id$ */
7/* History of cvs commits:
8 *
9 * $Log$
feedcab9 10 * Revision 1.3 2007/10/31 17:15:24 mvl
11 * Fixed bug in raw data unpacking; Added pedestal to signal fit; Added logic to deal with high/low gain
12 *
82cbdfca 13 * Revision 1.2 2007/09/03 20:55:35 jklay
14 * EMCAL e-by-e reconstruction methods from Cvetan
15 *
c47157cd 16 * Revision 1.1 2007/03/17 19:56:38 mvl
17 * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code.
18 *
ee299369 19 *
20 */
21//_________________________________________________________________________
22// Utility Class for handling Raw data
23// Does all transitions from Digits to Raw and vice versa,
24// for simu and reconstruction
25//
26// Note: the current version is still simplified. Only
27// one raw signal per digit is generated; either high-gain or low-gain
28// Need to add concurrent high and low-gain info in the future
29// No pedestal is added to the raw signal.
30//
31//*-- Author: Marco van Leeuwen (LBL)
32//
33#include "TObject.h" // for ROOT types
feedcab9 34#include <TString.h>
35#include "AliCaloRawStream.h"
ee299369 36
37class TGraph;
38class TF1;
39class AliRawReader;
40
41class AliEMCALRawUtils : public TObject {
42 public:
43 AliEMCALRawUtils();
44 virtual ~AliEMCALRawUtils();
45
feedcab9 46 void Digits2Raw(AliAltroMapping **mapping = NULL);
47 void Raw2Digits(AliRawReader *reader,TClonesArray *digitsArr, AliAltroMapping **mapping = NULL);
82cbdfca 48 void AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time);
ee299369 49
50 // Signal shape parameters
51 Double_t GetRawFormatHighLowGainFactor() const {return fHighLowGainFactor ;}
52 static Int_t GetRawFormatOrder() { return fgOrder ; }
53 static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; }
82cbdfca 54 static Double_t GetRawFormatTimeMax() { return fgkTimeBins*fgTimeBinWidth; }
55 static Double_t GetRawFormatTimeBinWidth() { return fgTimeBinWidth; }
ee299369 56 Double_t GetRawFormatTau() const { return fgTau ; }
57 Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
58 Int_t GetRawFormatThreshold() const { return fgThreshold ; }
59 Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
60
feedcab9 61 virtual Option_t* GetOption() const { return fOption.Data(); }
62 void SetOption(Option_t* opt) { fOption = opt; }
63
ee299369 64 // Signal shape functions
82cbdfca 65 void FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time);
ee299369 66 static Double_t RawResponseFunction(Double_t *x, Double_t *par);
67 Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const;
68
feedcab9 69 ClassDef(AliEMCALRawUtils,1)
ee299369 70
71 private:
72 Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
73 static Int_t fgOrder ; // order of the gamma function for the RO signal
74 static Double_t fgTau ; // tau parameter of gamma function for the RO signal
75 static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
76
77 static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
82cbdfca 78 static Double_t fgTimeBinWidth; // maximum sampled time of the raw RO signal
ee299369 79 static Int_t fgThreshold; // threshold
80 static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
feedcab9 81
82 TString fOption; //! option passed from Reconstructor
ee299369 83};
84
85#endif