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7bc140a5 | 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 | /* $Id$ */ | |
17 | ||
18 | //This class produces PHOS digits of one event | |
19 | //using AliPHOSRawDecoder. | |
20 | // | |
21 | // For example: | |
22 | // TClonesArray *digits = new TClonesArray("AliPHOSDigit",100); | |
23 | // AliRawReader* rawReader = new AliRawReaderDate("2006run2211.raw"); | |
24 | // AliPHOSRawDecoder dc(rawReader); | |
25 | // while (rawReader->NextEvent()) { | |
26 | // AliPHOSRawDigiProducer producer; | |
27 | // producer.MakeDigits(digits,&dc); | |
28 | // } | |
29 | ||
30 | // Author: Boris Polichtchouk | |
31 | ||
32 | // --- ROOT system --- | |
88fb5e50 | 33 | #include "TClonesArray.h" |
34 | ||
7bc140a5 | 35 | // --- AliRoot header files --- |
88fb5e50 | 36 | #include "AliPHOSRawDigiProducer.h" |
37 | #include "AliPHOSRawDecoder.h" | |
38 | #include "AliPHOSGeometry.h" | |
39 | #include "AliPHOSDigit.h" | |
40 | ||
41 | ClassImp(AliPHOSRawDigiProducer) | |
42 | ||
7bc140a5 | 43 | //-------------------------------------------------------------------------------------- |
88fb5e50 | 44 | void AliPHOSRawDigiProducer::MakeDigits(TClonesArray *digits, AliPHOSRawDecoder* decoder) |
45 | { | |
7bc140a5 | 46 | //Makes the job. |
47 | //TClonesArray *digits and raw data decoder should be provided by calling function. | |
48 | ||
88fb5e50 | 49 | digits->Clear(); |
50 | ||
51 | AliPHOSGeometry* geo = AliPHOSGeometry::GetInstance(); | |
52 | if(!geo) geo = AliPHOSGeometry::GetInstance("IHEP"); | |
53 | ||
54 | Int_t iDigit = 0 ; | |
55 | Double_t time = 0. ; | |
56 | Int_t iOldDigit; | |
57 | Bool_t seen,lowGainFlag; | |
58 | Int_t relId[4], absId =0; | |
59 | ||
60 | while (decoder->NextDigit()) { | |
61 | ||
1267d56d | 62 | if (decoder->GetEnergy() <= 0.) continue; |
63 | ||
88fb5e50 | 64 | lowGainFlag = decoder->IsLowGain(); |
65 | time = decoder->GetTime(); | |
66 | ||
67 | relId[0] = decoder->GetModule(); | |
68 | relId[1] = 0; | |
69 | relId[2] = decoder->GetRow(); | |
70 | relId[3] = decoder->GetColumn(); | |
71 | geo->RelToAbsNumbering(relId, absId); | |
72 | ||
73 | // Add low gain digit only | |
74 | //if the high gain digit does not exist in the digits array | |
75 | ||
76 | seen = kFALSE; | |
77 | ||
78 | if(lowGainFlag) { | |
79 | for (iOldDigit=iDigit-1; iOldDigit>=0; iOldDigit--) { | |
80 | if ((dynamic_cast<AliPHOSDigit*>(digits->At(iOldDigit)))->GetId() == absId) { | |
81 | seen = kTRUE; | |
82 | break; | |
83 | } | |
84 | } | |
85 | if (!seen) { | |
86 | new((*digits)[iDigit]) AliPHOSDigit(-1,absId,(Float_t)decoder->GetEnergy(),time); | |
87 | iDigit++; | |
88 | } | |
89 | } | |
90 | ||
91 | // Add high gain digit only if it is not saturated; | |
92 | // replace low gain digit by a high gain one | |
93 | else { | |
94 | if (decoder->GetEnergy() >= 1023) continue; | |
95 | for (iOldDigit=iDigit-1; iOldDigit>=0; iOldDigit--) { | |
96 | if ((dynamic_cast<AliPHOSDigit*>(digits->At(iOldDigit)))->GetId() == absId) { | |
97 | digits->RemoveAt(iOldDigit); | |
98 | new((*digits)[iOldDigit]) AliPHOSDigit(-1,absId,(Float_t)decoder->GetEnergy(),time); | |
99 | seen = kTRUE; | |
100 | break; | |
101 | } | |
102 | } | |
103 | if (!seen) { | |
104 | new((*digits)[iDigit]) AliPHOSDigit(-1,absId,(Float_t)decoder->GetEnergy(),time); | |
105 | iDigit++; | |
106 | } | |
107 | } | |
108 | ||
109 | } | |
110 | ||
111 | digits->Compress(); | |
112 | digits->Sort(); | |
113 | } |