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60d3a1d3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, 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 | ||
7ca4655f | 18 | #include <TClonesArray.h> |
19 | ||
60d3a1d3 | 20 | #include "AliMUONSDigitizerV2.h" |
21 | ||
60d3a1d3 | 22 | #include "AliMUON.h" |
23 | #include "AliMUONChamber.h" | |
445096c0 | 24 | #include "AliMUONVDigit.h" |
60d3a1d3 | 25 | #include "AliMUONHit.h" |
5ee595ac | 26 | #include "AliMUONVDigitStore.h" |
445096c0 | 27 | #include "AliMUONVHitStore.h" |
7d7d22a6 | 28 | #include "AliMUONCalibrationData.h" |
29 | #include "AliMUONResponseTrigger.h" | |
30 | ||
a55f49a0 | 31 | #include "AliMpCDB.h" |
32 | #include "AliMpDEManager.h" | |
33 | ||
34 | #include "AliLog.h" | |
35 | #include "AliCDBManager.h" | |
36 | #include "AliLoader.h" | |
37 | #include "AliRun.h" | |
38 | #include "AliRunLoader.h" | |
39 | ||
3d1463c8 | 40 | //----------------------------------------------------------------------------- |
ae6eeca4 | 41 | /// The sdigitizer performs the transformation from hits (energy deposits by |
42 | /// the transport code) to sdigits (equivalent of charges on pad). | |
43 | /// | |
44 | /// It does so by converting the energy deposit into a charge and then spreading | |
45 | /// this charge over several pads, according to the response function (a | |
46 | /// Mathieson distribution, basically). | |
47 | /// | |
48 | /// See also AliMUONResponseV0, which is doing the real job (in DisIntegrate | |
49 | /// method), while this sdigitizer is just "steering" the process. | |
50 | /// | |
51 | /// Please note that we do *not* merge sdigits after creation, which means | |
52 | /// that after sdigitization, a given pad can have several sdigits. This | |
53 | /// merging is taken care of later on by the digitizer(V3). | |
3d1463c8 | 54 | //----------------------------------------------------------------------------- |
ae6eeca4 | 55 | |
60d3a1d3 | 56 | ClassImp(AliMUONSDigitizerV2) |
57 | ||
58 | //_____________________________________________________________________________ | |
59 | AliMUONSDigitizerV2::AliMUONSDigitizerV2() | |
60 | : TTask("AliMUONSDigitizerV2","From Hits to SDigits for MUON") | |
61 | { | |
71a2d3aa | 62 | /// |
63 | /// ctor. | |
64 | /// | |
a55f49a0 | 65 | |
66 | // Load mapping | |
67 | if ( ! AliMpCDB::LoadMpSegmentation() ) { | |
88544f7e | 68 | AliFatal("Could not access mapping from OCDB !"); |
69 | } | |
60d3a1d3 | 70 | } |
71 | ||
72 | //_____________________________________________________________________________ | |
73 | AliMUONSDigitizerV2::~AliMUONSDigitizerV2() | |
74 | { | |
71a2d3aa | 75 | /// |
76 | /// dtor. | |
77 | /// | |
60d3a1d3 | 78 | } |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | void | |
82 | AliMUONSDigitizerV2::Exec(Option_t*) | |
83 | { | |
71a2d3aa | 84 | /// |
85 | /// Go from hits to sdigits. | |
86 | /// | |
87 | /// In the code below, apart from the loop itself (which look complicated | |
88 | /// but is really only a loop on each hit in the input file) the main | |
89 | /// work is done in AliMUONResponse::DisIntegrate method, which converts | |
90 | /// a single hit in (possibly) several sdigits. | |
91 | /// | |
60d3a1d3 | 92 | |
93 | AliDebug(1,""); | |
94 | ||
95 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(); | |
445096c0 | 96 | AliLoader* loader = runLoader->GetDetectorLoader("MUON"); |
60d3a1d3 | 97 | |
445096c0 | 98 | loader->LoadHits("READ"); |
60d3a1d3 | 99 | |
60d3a1d3 | 100 | AliMUON* muon = static_cast<AliMUON*>(gAlice->GetModule("MUON")); |
7d7d22a6 | 101 | |
102 | AliMUONCalibrationData *calibrationData = 0x0; | |
103 | ||
104 | if(muon->GetTriggerEffCells()){ | |
105 | Int_t runnumber = AliCDBManager::Instance()->GetRun(); | |
106 | calibrationData = new AliMUONCalibrationData(runnumber); | |
107 | for (Int_t chamber = 10; chamber < 14; chamber++) { | |
108 | ((AliMUONResponseTrigger *) (muon->Chamber(chamber).ResponseModel()))->InitTriggerEfficiency(calibrationData->TriggerEfficiency()); // Init trigger efficiency | |
109 | } | |
110 | } | |
111 | ||
ae6eeca4 | 112 | Int_t nofEvents(runLoader->GetNumberOfEvents()); |
445096c0 | 113 | |
5ee595ac | 114 | TString classname = muon->DigitStoreClassName(); |
445096c0 | 115 | |
5ee595ac | 116 | AliMUONVDigitStore* sDigitStore = AliMUONVDigitStore::Create(classname.Data()); |
117 | ||
118 | if (!sDigitStore) | |
119 | { | |
120 | AliFatal(Form("Could not create digitstore of class %s",classname.Data())); | |
121 | } | |
122 | ||
123 | AliInfo(Form("Will use digitStore of type %s",sDigitStore->ClassName())); | |
124 | ||
60d3a1d3 | 125 | for ( Int_t iEvent = 0; iEvent < nofEvents; ++iEvent ) |
126 | { | |
2c6e3e30 | 127 | // Loop over events. |
60d3a1d3 | 128 | TObjArray tdlist; |
129 | tdlist.SetOwner(kTRUE); | |
130 | ||
131 | AliDebug(1,Form("iEvent=%d",iEvent)); | |
132 | runLoader->GetEvent(iEvent); | |
445096c0 | 133 | |
134 | loader->MakeSDigitsContainer(); | |
135 | ||
136 | TTree* treeS = loader->TreeS(); | |
137 | ||
60d3a1d3 | 138 | if ( !treeS ) |
139 | { | |
445096c0 | 140 | AliFatal(""); |
60d3a1d3 | 141 | } |
445096c0 | 142 | |
143 | sDigitStore->Connect(*treeS); | |
144 | ||
145 | TTree* treeH = loader->TreeH(); | |
146 | ||
147 | AliMUONVHitStore* hitStore = AliMUONVHitStore::Create(*treeH); | |
148 | hitStore->Connect(*treeH); | |
60d3a1d3 | 149 | |
60d3a1d3 | 150 | Long64_t nofTracks = treeH->GetEntries(); |
445096c0 | 151 | |
60d3a1d3 | 152 | for ( Long64_t iTrack = 0; iTrack < nofTracks; ++iTrack ) |
153 | { | |
2c6e3e30 | 154 | // Loop over the tracks of this event. |
60d3a1d3 | 155 | treeH->GetEvent(iTrack); |
445096c0 | 156 | |
157 | AliMUONHit* hit; | |
158 | TIter next(hitStore->CreateIterator()); | |
159 | Int_t ihit(0); | |
160 | ||
161 | while ( ( hit = static_cast<AliMUONHit*>(next()) ) ) | |
60d3a1d3 | 162 | { |
60d3a1d3 | 163 | Int_t chamberId = hit->Chamber()-1; |
164 | AliMUONChamber& chamber = muon->Chamber(chamberId); | |
165 | AliMUONResponse* response = chamber.ResponseModel(); | |
2c6e3e30 | 166 | |
167 | // This is the heart of this method : the dis-integration | |
168 | TList digits; | |
60d3a1d3 | 169 | response->DisIntegrate(*hit,digits); |
2c6e3e30 | 170 | |
bf0d3528 | 171 | TIter nextd(&digits); |
445096c0 | 172 | AliMUONVDigit* d; |
bf0d3528 | 173 | while ( ( d = (AliMUONVDigit*)nextd() ) ) |
60d3a1d3 | 174 | { |
2c6e3e30 | 175 | // Update some sdigit information that could not be known |
176 | // by the DisIntegrate method | |
60d3a1d3 | 177 | d->SetHit(ihit); |
445096c0 | 178 | d->AddTrack(iTrack,d->Charge()); |
60d3a1d3 | 179 | tdlist.Add(d); |
180 | } | |
445096c0 | 181 | ++ihit; |
60d3a1d3 | 182 | } |
445096c0 | 183 | hitStore->Clear(); |
2c6e3e30 | 184 | } // end of loop on tracks within an event |
185 | ||
445096c0 | 186 | TIter next(&tdlist); |
187 | AliMUONVDigit* d; | |
188 | ||
189 | while ( ( d = static_cast<AliMUONVDigit*>(next()) ) ) | |
60d3a1d3 | 190 | { |
445096c0 | 191 | if ( d->Charge() > 0 ) // that check would be better in the disintegrate |
60d3a1d3 | 192 | // method, but to compare with old sdigitizer, it has to be there. |
193 | { | |
445096c0 | 194 | AliMUONVDigit* added = sDigitStore->Add(*d,AliMUONVDigitStore::kMerge); |
195 | if (!added) | |
196 | { | |
197 | AliError("Could not add digit to digitStore"); | |
198 | } | |
60d3a1d3 | 199 | } |
200 | } | |
445096c0 | 201 | |
202 | treeS->Fill(); | |
203 | ||
204 | loader->WriteSDigits("OVERWRITE"); | |
205 | ||
206 | sDigitStore->Clear(); | |
207 | ||
208 | loader->UnloadSDigits(); | |
209 | ||
210 | delete hitStore; | |
2c6e3e30 | 211 | |
60d3a1d3 | 212 | } // loop on events |
213 | ||
445096c0 | 214 | loader->UnloadHits(); |
215 | ||
216 | delete sDigitStore; | |
7d7d22a6 | 217 | |
218 | if(calibrationData) delete calibrationData; | |
60d3a1d3 | 219 | } |