]>
Commit | Line | Data |
---|---|---|
a29c28b6 | 1 | /************************************************************************** |
2 | * Copyright(c) 2007, 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 | // This class decodes the stream of ALTRO samples to extract | |
17 | // the PHOS "digits" of current event. | |
18 | // | |
19 | // Typical use case: | |
20 | // AliRawReader* rf = new AliRawReaderDate("2006run2211.raw"); | |
21 | // while (rf->NextEvent()) { | |
22 | // AliPHOSRawDecoder dc(rf); | |
23 | // dc.SetOldRCUFormat(kTRUE); | |
24 | // dc.SubtractPedestals(kTRUE); | |
25 | // while ( dc.NextDigit() ) { | |
26 | // Int_t module = dc.GetModule(); | |
27 | // Int_t column = dc.GetColumn(); | |
28 | // Int_t row = dc.GetRow(); | |
29 | // Double_t amplitude = dc.GetEnergy(); | |
30 | // Double_t time = dc.GetTime(); | |
31 | // Bool_t IsLowGain = dc.IsLowGain(); | |
32 | // .......... | |
33 | // } | |
34 | // } | |
35 | ||
36 | // Author: Boris Polichtchouk | |
37 | ||
38 | // --- ROOT system --- | |
39 | #include "TH1.h" | |
40 | ||
41 | // --- AliRoot header files --- | |
42 | #include "AliPHOSRawDecoder.h" | |
43 | #include "AliPHOSPulseGenerator.h" | |
44 | ||
45 | ClassImp(AliPHOSRawDecoder) | |
46 | ||
47 | //----------------------------------------------------------------------------- | |
48 | AliPHOSRawDecoder::AliPHOSRawDecoder(): | |
49 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1) | |
50 | { | |
51 | //Default constructor. | |
52 | } | |
53 | ||
54 | //----------------------------------------------------------------------------- | |
55 | AliPHOSRawDecoder::AliPHOSRawDecoder(AliRawReader* rawReader): | |
56 | fRawReader(0),fCaloStream(0),fPedSubtract(kFALSE),fEnergy(-111),fTime(-111),fModule(-1),fColumn(-1),fRow(-1) | |
57 | { | |
58 | //Construct a decoder object. | |
59 | //Is is user responsibility to provide next raw event | |
60 | //using AliRawReader::NextEvent(). | |
61 | ||
62 | fRawReader = rawReader; | |
63 | fCaloStream = new AliCaloRawStream(rawReader,"PHOS"); | |
64 | fCaloStream->SetOldRCUFormat(kFALSE); | |
65 | } | |
66 | ||
67 | //----------------------------------------------------------------------------- | |
68 | AliPHOSRawDecoder::~AliPHOSRawDecoder() | |
69 | { | |
70 | //Destructor. | |
71 | ||
72 | if(fCaloStream) delete fCaloStream; | |
73 | } | |
74 | ||
75 | //----------------------------------------------------------------------------- | |
76 | AliPHOSRawDecoder::AliPHOSRawDecoder(const AliPHOSRawDecoder &phosDecoder ): | |
77 | fRawReader(phosDecoder.fRawReader),fCaloStream(phosDecoder.fCaloStream), | |
78 | fPedSubtract(phosDecoder.fPedSubtract), | |
79 | fEnergy(phosDecoder.fEnergy),fTime(phosDecoder.fTime), | |
80 | fModule(phosDecoder.fModule),fColumn(phosDecoder.fColumn), | |
81 | fRow(phosDecoder.fRow) | |
82 | { | |
83 | //Copy constructor. | |
84 | } | |
85 | ||
86 | //----------------------------------------------------------------------------- | |
87 | AliPHOSRawDecoder& AliPHOSRawDecoder::operator = (const AliPHOSRawDecoder &phosDecode) | |
88 | { | |
89 | if(this != &phosDecode) { | |
90 | fRawReader = phosDecode.fRawReader; | |
91 | ||
92 | if(fCaloStream) delete fCaloStream; | |
93 | fCaloStream = phosDecode.fCaloStream; | |
94 | ||
95 | fEnergy = phosDecode.fEnergy; | |
96 | fTime = phosDecode.fTime; | |
97 | fModule = phosDecode.fModule; | |
98 | fColumn = phosDecode.fColumn; | |
99 | fRow = phosDecode.fRow; | |
100 | } | |
101 | ||
102 | return *this; | |
103 | } | |
104 | ||
105 | //----------------------------------------------------------------------------- | |
106 | ||
107 | Bool_t AliPHOSRawDecoder::NextDigit() | |
108 | { | |
109 | //Extract an energy deposited in the crystal, | |
110 | //crystal' position (module,column,row), | |
111 | //time and gain (high or low). | |
112 | ||
113 | AliCaloRawStream* in = fCaloStream; | |
114 | ||
115 | // Create a shaper pulse object | |
116 | AliPHOSPulseGenerator pulse; | |
117 | ||
118 | Bool_t lowGainFlag = kFALSE ; | |
119 | Int_t iBin = 0; | |
120 | ||
121 | // Create histogram to store samples | |
122 | TH1F hSamples("hSamples","ALTRO samples",in->GetTimeLength(),0,in->GetTimeLength()); | |
123 | ||
124 | while ( in->Next() ) { | |
125 | ||
126 | lowGainFlag = in->IsLowGain(); | |
127 | // Fill histograms with samples | |
128 | hSamples.SetBinContent(in->GetTimeLength()-iBin-1,in->GetSignal()); | |
129 | iBin++; | |
130 | ||
131 | // Fit the full sample | |
132 | if(iBin==in->GetTimeLength()) { | |
133 | iBin=0; | |
134 | ||
135 | // Temporarily we do not fit the sample graph, but | |
136 | // take the energy from the graph maximum, and the pedestal | |
137 | // from the 0th point (30 Aug 2006). | |
138 | // Time is not evaluated for the moment (12.01.2007). | |
139 | // Take is as a first time bin multiplied by the sample tick time | |
140 | ||
141 | fTime = pulse.GetRawFormatTimeTrigger() * in->GetTime(); | |
142 | ||
143 | fModule = in->GetModule()+1; | |
144 | fRow = in->GetRow() +1; | |
145 | fColumn = in->GetColumn()+1; | |
146 | ||
147 | fEnergy = hSamples.GetMaximum(); // "digit amplitude" | |
148 | if(fPedSubtract) | |
149 | fEnergy-= hSamples.GetBinContent(0); // "pedestal subtraction" | |
150 | ||
151 | if(lowGainFlag) | |
152 | fEnergy *= pulse.GetRawFormatHighLowGainFactor(); // *16 | |
153 | ||
154 | return kTRUE; | |
155 | } | |
156 | ||
157 | } // in.Next() | |
158 | ||
159 | ||
160 | return kFALSE; | |
161 | } |