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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;
65bdc82f 40class AliEMCALGeometry;
ee299369 41
42class AliEMCALRawUtils : public TObject {
43 public:
44 AliEMCALRawUtils();
45 virtual ~AliEMCALRawUtils();
46
65bdc82f 47 AliEMCALRawUtils(const AliEMCALRawUtils& rawUtils); //copy ctor
48 AliEMCALRawUtils& operator =(const AliEMCALRawUtils& rawUtils);
49
50 void Digits2Raw();
51 void Raw2Digits(AliRawReader *reader,TClonesArray *digitsArr);
52
82cbdfca 53 void AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time);
ee299369 54
55 // Signal shape parameters
56 Double_t GetRawFormatHighLowGainFactor() const {return fHighLowGainFactor ;}
57 static Int_t GetRawFormatOrder() { return fgOrder ; }
58 static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; }
82cbdfca 59 static Double_t GetRawFormatTimeMax() { return fgkTimeBins*fgTimeBinWidth; }
60 static Double_t GetRawFormatTimeBinWidth() { return fgTimeBinWidth; }
ee299369 61 Double_t GetRawFormatTau() const { return fgTau ; }
62 Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
63 Int_t GetRawFormatThreshold() const { return fgThreshold ; }
64 Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
65
feedcab9 66 virtual Option_t* GetOption() const { return fOption.Data(); }
67 void SetOption(Option_t* opt) { fOption = opt; }
68
ee299369 69 // Signal shape functions
82cbdfca 70 void FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time);
ee299369 71 static Double_t RawResponseFunction(Double_t *x, Double_t *par);
72 Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const;
73
feedcab9 74 ClassDef(AliEMCALRawUtils,1)
ee299369 75
76 private:
77 Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
78 static Int_t fgOrder ; // order of the gamma function for the RO signal
79 static Double_t fgTau ; // tau parameter of gamma function for the RO signal
80 static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
81
82 static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
82cbdfca 83 static Double_t fgTimeBinWidth; // maximum sampled time of the raw RO signal
ee299369 84 static Int_t fgThreshold; // threshold
85 static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
feedcab9 86
65bdc82f 87 AliEMCALGeometry* fGeom; //geometry
88 AliAltroMapping* fMapping[2]; //only two for now
89
feedcab9 90 TString fOption; //! option passed from Reconstructor
ee299369 91};
92
93#endif