EMCAL e-by-e reconstruction methods from Cvetan
[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 * $Log$
c47157cd 10 * Revision 1.1 2007/03/17 19:56:38 mvl
11 * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code.
12 *
ee299369 13 *
14 */
15//_________________________________________________________________________
16// Utility Class for handling Raw data
17// Does all transitions from Digits to Raw and vice versa,
18// for simu and reconstruction
19//
20// Note: the current version is still simplified. Only
21// one raw signal per digit is generated; either high-gain or low-gain
22// Need to add concurrent high and low-gain info in the future
23// No pedestal is added to the raw signal.
24//
25//*-- Author: Marco van Leeuwen (LBL)
26//
27#include "TObject.h" // for ROOT types
28
29class TGraph;
30class TF1;
31class AliRawReader;
32
33class AliEMCALRawUtils : public TObject {
34 public:
35 AliEMCALRawUtils();
36 virtual ~AliEMCALRawUtils();
37
38 void Digits2Raw();
c47157cd 39 void Raw2Digits(AliRawReader *reader,TClonesArray *digitsArr);
ee299369 40
41 // Signal shape parameters
42 Double_t GetRawFormatHighLowGainFactor() const {return fHighLowGainFactor ;}
43 static Int_t GetRawFormatOrder() { return fgOrder ; }
44 static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; }
45 static Double_t GetRawFormatTimeMax() { return fgTimeMax ; }
46 Double_t GetRawFormatTau() const { return fgTau ; }
47 Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
48 Int_t GetRawFormatThreshold() const { return fgThreshold ; }
49 Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
50
51 // Signal shape functions
52 void FitRaw(TGraph * gSig, TF1* signalF, Double_t & amp, Double_t & time);
53 static Double_t RawResponseFunction(Double_t *x, Double_t *par);
54 Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const;
55
56 ClassDef(AliEMCALRawUtils,0)
57
58 private:
59 Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
60 static Int_t fgOrder ; // order of the gamma function for the RO signal
61 static Double_t fgTau ; // tau parameter of gamma function for the RO signal
62 static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
63
64 static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
65 static Double_t fgTimeMax ; // maximum sampled time of the raw RO signal
66 static Int_t fgThreshold; // threshold
67 static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
68};
69
70#endif