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1df4a03e | 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 | ||
18 | /// \class AliMUONMCDataInterface | |
19 | /// | |
20 | /// Easy to use MC data accessor | |
21 | /// | |
22 | /// \author Laurent Aphecetche, Subatech | |
23 | /// | |
24 | ||
25 | #include "AliMUONMCDataInterface.h" | |
26 | ||
27 | #include "AliLog.h" | |
28 | #include "AliMUONDataManager.h" | |
29 | #include "AliMUONVStore.h" | |
30 | #include "AliMUONVHitStore.h" | |
31 | #include "AliRunLoader.h" | |
32 | #include "AliStack.h" | |
33 | #include <Riostream.h> | |
34 | #include <TClonesArray.h> | |
35 | #include <TParticle.h> | |
36 | ||
37 | /// \cond CLASSIMP | |
38 | ClassImp(AliMUONMCDataInterface) | |
39 | /// \endcond | |
40 | ||
41 | //_____________________________________________________________________________ | |
42 | AliMUONMCDataInterface::AliMUONMCDataInterface(const char* filename) : | |
43 | TObject(), | |
44 | fDataManager(new AliMUONDataManager(filename)) | |
45 | { | |
46 | /// ctor | |
47 | if (!IsValid()) | |
48 | { | |
49 | AliError(Form("Could not access %s filename. Object is unuseable",filename)); | |
50 | } | |
51 | } | |
52 | ||
53 | //_____________________________________________________________________________ | |
54 | AliMUONMCDataInterface::~AliMUONMCDataInterface() | |
55 | { | |
56 | /// dtor | |
57 | delete fDataManager; | |
58 | } | |
59 | ||
60 | //_____________________________________________________________________________ | |
61 | void | |
62 | AliMUONMCDataInterface::DumpHits(Int_t event) const | |
63 | { | |
64 | /// Dump all the hits for one event | |
65 | ||
66 | Int_t ntracks = NumberOfTracks(event); | |
67 | ||
68 | for ( Int_t i = 0; i < ntracks; ++i ) | |
69 | { | |
70 | cout << ">> Track " << i << endl; | |
71 | AliMUONVHitStore* hitStore = HitStore(event,i); | |
72 | hitStore->Print("","full"); | |
73 | delete hitStore; | |
74 | } | |
75 | } | |
76 | ||
77 | //_____________________________________________________________________________ | |
78 | void | |
79 | AliMUONMCDataInterface::DumpKine(Int_t event) const | |
80 | { | |
81 | /// Dump all generated particles for one event | |
82 | AliStack* stack = Stack(event); | |
83 | ||
84 | if ( stack ) | |
85 | { | |
86 | Int_t nparticles = (Int_t) stack->GetNtrack(); | |
87 | ||
88 | for (Int_t iparticle=0; iparticle<nparticles; ++iparticle) | |
89 | { | |
90 | stack->Particle(iparticle)->Print(""); | |
91 | } | |
92 | } | |
93 | else | |
94 | { | |
95 | AliError("Could not get stack"); | |
96 | } | |
97 | } | |
98 | ||
99 | //_____________________________________________________________________________ | |
100 | void | |
101 | AliMUONMCDataInterface::DumpTrackRefs(Int_t event) const | |
102 | { | |
103 | /// Dump track references for one event | |
104 | Int_t ntrackrefs = NumberOfTrackRefs(event); | |
105 | ||
106 | for ( Int_t i = 0; i < ntrackrefs; ++i ) | |
107 | { | |
108 | TClonesArray* trackRefs = TrackRefs(event,i); | |
109 | trackRefs->Print("","*"); | |
110 | delete trackRefs; | |
111 | } | |
112 | } | |
113 | ||
114 | //_____________________________________________________________________________ | |
115 | AliMUONVHitStore* | |
116 | AliMUONMCDataInterface::HitStore(Int_t event, Int_t track) const | |
117 | { | |
118 | /// Return the hitStore for a given track of one event | |
119 | if ( !IsValid() ) return 0x0; | |
120 | ||
121 | fDataManager->Load("H"); | |
122 | ||
123 | if ( fDataManager->Load(event) ) return 0x0; | |
124 | ||
125 | TTree* treeH = fDataManager->Tree("H"); | |
126 | ||
127 | AliMUONVHitStore* hitStore(0x0); | |
128 | ||
129 | if (treeH) | |
130 | { | |
131 | hitStore = AliMUONVHitStore::Create(*treeH); | |
132 | if ( hitStore ) | |
133 | { | |
134 | hitStore->Connect(*treeH); | |
135 | if ( treeH->GetEvent(track) == 0 ) | |
136 | { | |
137 | hitStore = 0x0; | |
138 | } | |
139 | } | |
140 | } | |
141 | else | |
142 | { | |
143 | AliError("Could not get TreeH"); | |
144 | } | |
145 | ||
146 | fDataManager->Unload("H"); | |
147 | ||
148 | return hitStore; | |
149 | } | |
150 | ||
151 | //_____________________________________________________________________________ | |
152 | Bool_t | |
153 | AliMUONMCDataInterface::IsValid() const | |
154 | { | |
155 | /// Whether we were initialized properly or not | |
156 | return fDataManager->IsValid(); | |
157 | } | |
158 | ||
159 | //_____________________________________________________________________________ | |
160 | Int_t | |
161 | AliMUONMCDataInterface::NumberOfEvents() const | |
162 | { | |
163 | /// Number of events in the file we're connected to | |
164 | if (!IsValid()) return 0; | |
165 | return fDataManager->NumberOfEvents(); | |
166 | } | |
167 | ||
168 | //_____________________________________________________________________________ | |
169 | Int_t | |
170 | AliMUONMCDataInterface::NumberOfTracks(Int_t event) const | |
171 | { | |
172 | /// Number of tracks in the event | |
173 | if (!IsValid()) return 0; | |
174 | ||
175 | fDataManager->Load("H"); | |
176 | ||
177 | if ( fDataManager->Load(event) ) return 0; | |
178 | ||
179 | Int_t rv(0); | |
180 | ||
181 | TTree* treeH = fDataManager->Tree("H"); | |
182 | if (treeH) | |
183 | { | |
184 | rv=static_cast<Int_t>(fDataManager->Tree("H")->GetEntries()); | |
185 | } | |
186 | else | |
187 | { | |
188 | AliError("Could not get TreeH"); | |
189 | } | |
190 | ||
191 | fDataManager->Unload("H"); | |
192 | ||
193 | return rv; | |
194 | } | |
195 | ||
196 | //_____________________________________________________________________________ | |
197 | Int_t | |
198 | AliMUONMCDataInterface::NumberOfTrackRefs(Int_t event) const | |
199 | { | |
200 | /// Number of track references in the event | |
201 | if (!IsValid()) return 0; | |
202 | ||
203 | fDataManager->Load("TR"); | |
204 | ||
205 | if ( fDataManager->Load(event) ) return 0; | |
206 | ||
207 | Int_t rv(0); | |
208 | ||
209 | TTree* treeH = fDataManager->Tree("TR"); | |
210 | if (treeH) | |
211 | { | |
212 | rv=static_cast<Int_t>(fDataManager->Tree("TR")->GetEntries()); | |
213 | } | |
214 | else | |
215 | { | |
216 | AliError("Could not get TreeTR"); | |
217 | } | |
218 | ||
219 | fDataManager->Unload("TR"); | |
220 | ||
221 | return rv; | |
222 | } | |
223 | ||
224 | //_____________________________________________________________________________ | |
225 | AliStack* | |
226 | AliMUONMCDataInterface::Stack(Int_t event) const | |
227 | { | |
228 | /// Get the Stack (list of generated particles) for one event | |
229 | if (!IsValid()) return 0x0; | |
230 | ||
231 | fDataManager->Load("K"); | |
232 | ||
233 | if ( fDataManager->Load(event) ) return 0x0; | |
234 | ||
235 | AliRunLoader* runLoader = AliRunLoader::GetRunLoader(); | |
236 | AliDebug(1,Form("RunLoader=%p",runLoader)); | |
237 | return runLoader->Stack(); | |
238 | } | |
239 | ||
240 | //_____________________________________________________________________________ | |
241 | TClonesArray* | |
242 | AliMUONMCDataInterface::TrackRefs(Int_t event, Int_t track) const | |
243 | { | |
244 | /// Get the track references for a given (generated) track of one event | |
245 | if ( !IsValid() ) return 0x0; | |
246 | ||
247 | fDataManager->Load("TR"); | |
248 | ||
249 | if ( fDataManager->Load(event) ) return 0x0; | |
250 | ||
251 | TTree* treeTR = fDataManager->Tree("TR"); | |
252 | ||
253 | TClonesArray* rv = 0; | |
254 | ||
255 | if (treeTR) | |
256 | { | |
257 | if ( treeTR->GetEvent(track) > 0 ) | |
258 | { | |
259 | TBranch* branch = treeTR->GetBranch("MUON"); | |
260 | branch->SetAddress(&rv); | |
261 | branch->GetEvent(track); | |
262 | } | |
263 | } | |
264 | else | |
265 | { | |
266 | AliError("Could not get TreeTR"); | |
267 | } | |
268 | ||
269 | fDataManager->Unload("TR"); | |
270 | ||
271 | return rv; | |
272 | } |