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74ea065c | 1 | //******************************************************************** |
2 | // Example of the reconstruction that generates the ESD | |
3 | // Input files: | |
4 | // a) file containing the ITS clusters | |
5 | // (the AliITSFindClustersV2.C macro can be used to generate it) | |
6 | // b) file containing the TPC clusters | |
7 | // (the AliTPCFindClusters.C macro can be used to generate it) | |
8 | // c) file containing the TRD clusters | |
9 | // (the AliTRDdigits2cluster.C macro can be used to generate it) | |
10 | // d) file containing the TOF digits | |
11 | // (the AliTOFSDigits2Digits.C macro can be used to generate it) | |
12 | // Ouput file: | |
13 | // AliESDs.root containing the ESD events | |
14 | // | |
15 | // Origin: Iouri Belikov, CERN, Jouri.Belikov@cern.ch | |
16 | //******************************************************************** | |
17 | ||
18 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
19 | #include <Riostream.h> | |
20 | #include "TFile.h" | |
21 | #include "TSystem.h" | |
22 | #include "TStopwatch.h" | |
23 | #include "TArrayF.h" | |
24 | ||
25 | #include "AliMagF.h" | |
26 | #include "AliRun.h" | |
27 | #include "AliRunLoader.h" | |
28 | #include "AliLoader.h" | |
29 | #include "AliHeader.h" | |
30 | #include "AliGenEventHeader.h" | |
31 | ||
32 | #include "AliESD.h" | |
33 | #include "AliESDpid.h" | |
34 | ||
35 | #include "AliITS.h" | |
36 | #include "AliITSgeom.h" | |
37 | #include "AliITStrackerV2.h" | |
38 | #include "AliV0vertexer.h" | |
39 | #include "AliCascadeVertexer.h" | |
40 | #include "AliITSpidESD.h" | |
41 | #include "AliITSLoader.h" | |
42 | ||
43 | #include "AliTPCParam.h" | |
44 | #include "AliTPCtracker.h" | |
45 | #include "AliTPCpidESD.h" | |
46 | #include "AliTPCLoader.h" | |
47 | ||
48 | #include "AliTRDtracker.h" | |
49 | #include "AliTRDPartID.h" | |
50 | ||
51 | #include "AliTOFpidESD.h" | |
52 | #include "AliTOF.h" | |
53 | #include "AliTOFGeometry.h" | |
54 | #endif | |
55 | ||
56 | extern AliRun *gAlice; | |
57 | extern TFile *gFile; | |
58 | ||
59 | Int_t AliESDtest(Int_t nev=1,Int_t run=0) { | |
60 | ||
61 | /**** Initialization of the NewIO *******/ | |
62 | ||
63 | if (gAlice) { | |
64 | delete gAlice->GetRunLoader(); | |
65 | delete gAlice; | |
66 | gAlice=0; | |
67 | } | |
68 | ||
69 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); | |
70 | if (rl == 0x0) { | |
71 | cerr<<"Can not open session"<<endl; | |
72 | return 1; | |
73 | } | |
74 | Int_t retval = rl->LoadgAlice(); | |
75 | if (retval) { | |
76 | cerr<<"AliESDtest.C : LoadgAlice returned error"<<endl; | |
77 | delete rl; | |
78 | return 1; | |
79 | } | |
80 | retval = rl->LoadHeader(); | |
81 | if (retval) { | |
82 | cerr<<"AliESDtest.C : LoadHeader returned error"<<endl; | |
83 | delete rl; | |
84 | return 2; | |
85 | } | |
86 | gAlice=rl->GetAliRun(); | |
87 | ||
88 | ||
89 | AliKalmanTrack::SetConvConst( | |
90 | 1000/0.299792458/gAlice->Field()->SolenoidField() | |
91 | ); | |
92 | ||
93 | ||
94 | /**** The ITS corner ********************/ | |
95 | ||
96 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); | |
97 | if (itsl == 0x0) { | |
98 | cerr<<"AliESDtest.C : Can not get the ITS loader"<<endl; | |
99 | return 3; | |
100 | } | |
101 | itsl->LoadRecPoints("read"); | |
102 | ||
103 | AliITS *dITS = (AliITS*)gAlice->GetDetector("ITS"); | |
104 | if (!dITS) { | |
105 | cerr<<"AliESDtest.C : Can not find the ITS detector !"<<endl; | |
106 | return 4; | |
107 | } | |
108 | AliITSgeom *geom = dITS->GetITSgeom(); | |
109 | ||
110 | //An instance of the ITS tracker | |
111 | AliITStrackerV2 itsTracker(geom); | |
112 | ||
113 | //An instance of the ITS PID maker | |
114 | Double_t parITS[]={35.5,0.11,10.}; | |
115 | AliITSpidESD itsPID(parITS); | |
116 | ||
117 | //An instance of the V0 finder | |
118 | Double_t cuts[]={33, // max. allowed chi2 | |
119 | 0.16,// min. allowed negative daughter's impact parameter | |
120 | 0.05,// min. allowed positive daughter's impact parameter | |
121 | 0.080,// max. allowed DCA between the daughter tracks | |
122 | 0.998,// max. allowed cosine of V0's pointing angle | |
123 | 0.9, // min. radius of the fiducial volume | |
124 | 2.9 // max. radius of the fiducial volume | |
125 | }; | |
126 | AliV0vertexer vtxer(cuts); | |
127 | ||
128 | Double_t cts[]={33., // max. allowed chi2 | |
129 | 0.05, // min. allowed V0 impact parameter | |
130 | 0.008, // window around the Lambda mass | |
131 | 0.035, // min. allowed bachelor's impact parameter | |
132 | 0.10, // max. allowed DCA between a V0 and a track | |
133 | 0.9985, //max. allowed cosine of the cascade pointing angle | |
134 | 0.9, // min. radius of the fiducial volume | |
135 | 2.9 // max. radius of the fiducial volume | |
136 | }; | |
137 | AliCascadeVertexer cvtxer=AliCascadeVertexer(cts); | |
138 | ||
139 | /**** The TPC corner ********************/ | |
140 | ||
141 | AliTPCLoader* tpcl = (AliTPCLoader*)rl->GetLoader("TPCLoader"); | |
142 | if (tpcl == 0x0) { | |
143 | cerr<<"AliESDtest.C : can not get the TPC loader"<<endl; | |
144 | return 5; | |
145 | } | |
146 | tpcl->LoadRecPoints("read"); | |
147 | ||
148 | rl->CdGAFile(); | |
149 | AliTPCParam *par=(AliTPCParam *)gDirectory->Get("75x40_100x60_150x60"); | |
150 | if (!par) { | |
151 | cerr<<"TPC parameters have not been found !\n"; | |
152 | return 6; | |
153 | } | |
154 | ||
155 | //An instance of the TPC tracker | |
156 | AliTPCtracker tpcTracker(par); | |
157 | ||
158 | //An instance of the TPC PID maker | |
159 | Double_t parTPC[]={45.0,0.08,10.}; | |
160 | AliTPCpidESD tpcPID(parTPC); | |
161 | ||
162 | ||
163 | /**** The TRD corner ********************/ | |
164 | ||
165 | AliLoader* trdl = rl->GetLoader("TRDLoader"); | |
166 | if (trdl == 0x0) { | |
167 | cerr<<"AliESDtest.C : can not get the TRD loader"<<endl; | |
168 | return 5; | |
169 | } | |
170 | trdl->LoadRecPoints("read"); | |
171 | ||
172 | //An instance of the TRD tracker | |
173 | rl->CdGAFile(); | |
174 | AliTRDtracker trdTracker(gFile); //galice.root file | |
175 | ||
176 | /* | |
177 | //An instance of the TRD PID maker | |
178 | TFile* pidFile = TFile::Open("pid.root"); | |
179 | if (!pidFile->IsOpen()) { | |
180 | cerr << "Can't get pid.root !\n"; | |
181 | return 7; | |
182 | } | |
183 | AliTRDPartID* trdPID = (AliTRDPartID*) pidFile->Get("AliTRDPartID"); | |
184 | if (!trdPID) { | |
185 | cerr << "Can't get PID object !\n"; | |
186 | return 8; | |
187 | } | |
188 | */ | |
189 | ||
190 | ||
191 | /**** The TOF corner ********************/ | |
192 | AliTOF *dTOF = (AliTOF*)gAlice->GetDetector("TOF"); | |
193 | if (!dTOF) { | |
194 | cerr<<"AliESDtest.C : Can not find the TOF detector !"<<endl; | |
195 | return 4; | |
196 | } | |
197 | AliTOFGeometry *tofGeo = dTOF->GetGeometry(); | |
198 | if (!tofGeo) { | |
199 | cerr<<"AliESDtest.C : Can not find the TOF geometry !"<<endl; | |
200 | return 4; | |
201 | } | |
202 | ||
203 | AliLoader* tofl = rl->GetLoader("TOFLoader"); | |
204 | if (tofl == 0x0) { | |
205 | cerr<<"AliESDtest.C : can not get the TOF loader"<<endl; | |
206 | return 5; | |
207 | } | |
208 | tofl->LoadDigits("read"); | |
209 | ||
210 | //Instance of the TOF PID maker | |
211 | Double_t parTOF[]={130.,5.}; | |
212 | AliTOFtracker tofTracker(tofGeo,parTOF) ; | |
213 | ||
214 | ||
215 | //rl->UnloadgAlice(); | |
216 | ||
217 | ||
218 | TFile *bf=TFile::Open("AliESDcheck.root","RECREATE"); | |
219 | if (!bf || !bf->IsOpen()) { | |
220 | cerr<<"Can't open AliESDcheck.root !\n"; return 1; | |
221 | } | |
222 | TFile *ef=TFile::Open("AliESDs.root","RECREATE"); | |
223 | if (!ef || !ef->IsOpen()) {cerr<<"Can't open AliESDs.root !\n"; return 2;} | |
224 | ||
225 | TStopwatch timer; | |
226 | Int_t rc=0; | |
227 | if (nev>rl->GetNumberOfEvents()) nev=rl->GetNumberOfEvents(); | |
228 | //The loop over events | |
229 | for (Int_t i=0; i<nev; i++) { | |
230 | Char_t ename[100]; | |
231 | ||
232 | cerr<<"\n\nProcessing event number : "<<i<<endl; | |
233 | AliESD *event=new AliESD(); | |
234 | event->SetRunNumber(run); | |
235 | event->SetEventNumber(i); | |
236 | event->SetMagneticField(gAlice->Field()->SolenoidField()); | |
237 | ||
238 | rl->GetEvent(i); | |
239 | ||
240 | //***** Primary vertex reconstruction (MC vertex position, for the moment) | |
241 | TArrayF v(3); | |
242 | rl->GetHeader()->GenEventHeader()->PrimaryVertex(v); | |
243 | Double_t vtx[3]={v[0],v[1],v[2]}; | |
244 | Double_t cvtx[3]={0.005,0.005,0.010}; | |
245 | AliESDVertex vertex(vtx,cvtx); | |
246 | event->SetVertex(&vertex); | |
247 | ||
248 | //***** Initial path towards the primary vertex | |
249 | tpcTracker.SetVertex(vtx,cvtx); | |
250 | TTree *tpcTree=tpcl->TreeR(); | |
251 | if (!tpcTree) { | |
252 | cerr<<"Can't get the TPC cluster tree !\n"; | |
253 | return 4; | |
254 | } | |
255 | tpcTracker.LoadClusters(tpcTree); | |
256 | rc+=tpcTracker.Clusters2Tracks(event); | |
257 | tpcPID.MakePID(event); // preliminary PID | |
258 | AliESDpid::MakePID(event); // for the ITS tracker | |
259 | ||
260 | itsTracker.SetVertex(vtx,cvtx); | |
261 | TTree *itsTree=itsl->TreeR(); | |
262 | if (!itsTree) { | |
263 | cerr<<"Can't get the ITS cluster tree !\n"; | |
264 | return 4; | |
265 | } | |
266 | itsTracker.LoadClusters(itsTree); | |
267 | rc+=itsTracker.Clusters2Tracks(event); | |
268 | ||
269 | //checkpoint | |
270 | bf->cd(); | |
271 | sprintf(ename,"in%d",i); | |
272 | event->Write(ename); bf->Flush(); | |
273 | ef->cd(); | |
274 | ||
275 | //***** Back propagation towards the outer barrel detectors | |
276 | rc+=itsTracker.PropagateBack(event); | |
277 | ||
278 | rc+=tpcTracker.PropagateBack(event); | |
279 | ||
280 | TTree *trdTree=trdl->TreeR(); | |
281 | if (!trdTree) { | |
282 | cerr<<"Can't get the TRD cluster tree !\n"; | |
283 | return 4; | |
284 | } | |
285 | trdTracker.LoadClusters(trdTree); | |
286 | rc+=trdTracker.PropagateBack(event); | |
287 | ||
288 | /* | |
289 | for (Int_t iTrack = 0; iTrack < event->GetNumberOfTracks(); iTrack++) { | |
290 | AliESDtrack* track = event->GetTrack(iTrack); | |
291 | trdPID->MakePID(track); | |
292 | } | |
293 | */ | |
294 | ||
295 | TTree *tofTree=tofl->TreeD(); | |
296 | if (!tofTree) { | |
297 | cerr<<"Can't get the TOF cluster tree !\n"; | |
298 | return 4; | |
299 | } | |
300 | tofTracker.LoadClusters(tofTree); | |
301 | rc+=tofTracker.PropagateBack(event); | |
302 | tofTracker.UnloadClusters(); | |
303 | ||
304 | //checkpoint | |
305 | bf->cd(); | |
306 | strcat(ename,";*"); bf->Delete(ename); | |
307 | sprintf(ename,"out%d",i); | |
308 | event->Write(ename); bf->Flush(); | |
309 | ef->cd(); | |
310 | ||
311 | ||
312 | //***** Now the final refit at the primary vertex... | |
313 | rc+=trdTracker.RefitInward(event); | |
314 | trdTracker.UnloadClusters(); | |
315 | ||
316 | rc+=tpcTracker.RefitInward(event); | |
317 | tpcTracker.UnloadClusters(); | |
318 | tpcPID.MakePID(event); | |
319 | ||
320 | rc+=itsTracker.RefitInward(event); | |
321 | itsTracker.UnloadClusters(); | |
322 | itsPID.MakePID(event); | |
323 | ||
324 | ||
325 | //***** Here is the combined PID | |
326 | AliESDpid::MakePID(event); | |
327 | ||
328 | ||
329 | //checkpoint | |
330 | bf->cd(); | |
331 | strcat(ename,";*"); bf->Delete(ename); | |
332 | sprintf(ename,"refit%d",i); | |
333 | event->Write(ename); bf->Flush(); | |
334 | ef->cd(); | |
335 | ||
336 | bf->Close(); | |
337 | ||
338 | //***** Hyperon reconstruction | |
339 | vtxer.SetVertex(vtx); | |
340 | rc+=vtxer.Tracks2V0vertices(event); // V0 finding | |
341 | rc+=cvtxer.V0sTracks2CascadeVertices(event); // cascade finding | |
342 | ||
343 | ||
344 | //***** Some final manipulations with this event | |
345 | if (rc==0) { | |
346 | sprintf(ename,"%d",i); | |
347 | ef->cd(); | |
348 | if (!event->Write(ename)) rc++; ef->Flush(); | |
349 | bf=TFile::Open("AliESDcheck.root","RECREATE"); | |
350 | } | |
351 | if (rc) { | |
352 | cerr<<"Something bad happened...\n"; | |
353 | bf=TFile::Open("AliESDcheck.root","UPDATE"); | |
354 | } | |
355 | delete event; | |
356 | } | |
357 | timer.Stop(); timer.Print(); | |
358 | ||
359 | //pidFile->Close(); | |
360 | ||
361 | delete par; | |
362 | ||
363 | ef->Close(); | |
364 | bf->Close(); | |
365 | ||
366 | delete rl; | |
367 | ||
368 | return rc; | |
369 | } |