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9a281e83 | 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 | ||
17 | #include <TClonesArray.h> | |
18 | #include <TObjArray.h> | |
19 | #include <TObject.h> | |
20 | #include <TH2I.h> | |
48797466 | 21 | #include <TGraphErrors.h> |
9a281e83 | 22 | #include <TFile.h> |
23 | #include <TTree.h> | |
24 | #include <TROOT.h> | |
25 | #include <TChain.h> | |
26 | #include <TParticle.h> | |
27 | ||
28 | #include "AliLog.h" | |
29 | #include "AliAnalysisManager.h" | |
30 | #include "AliESDEvent.h" | |
d12237d6 | 31 | #include "AliESDkink.h" |
9a281e83 | 32 | #include "AliMCEvent.h" |
33 | #include "AliESDInputHandler.h" | |
34 | #include "AliMCEventHandler.h" | |
35 | ||
36 | #include "AliESDtrack.h" | |
37 | #include "AliMCParticle.h" | |
38 | #include "AliPID.h" | |
39 | #include "AliStack.h" | |
40 | #include "AliTrackReference.h" | |
9a281e83 | 41 | |
42 | #include "AliTRDcheckESD.h" | |
43 | ||
44 | ClassImp(AliTRDcheckESD) | |
45 | ||
965e895b | 46 | const Int_t AliTRDcheckESD::fgkNgraphs = 4; |
47 | const Float_t AliTRDcheckESD::fgkxTPC = 290.; | |
48 | const Float_t AliTRDcheckESD::fgkxTOF = 365.; | |
59589fc9 | 49 | FILE* AliTRDcheckESD::fgFile = 0x0; |
9a281e83 | 50 | |
51 | //____________________________________________________________________ | |
52 | AliTRDcheckESD::AliTRDcheckESD(): | |
6da3eee3 | 53 | AliAnalysisTask("checkESD", "ESD checker for TRD info") |
9a281e83 | 54 | ,fStatus(0) |
55 | ,fESD(0x0) | |
56 | ,fMC(0x0) | |
57 | ,fHistos(0x0) | |
58 | { | |
59 | // | |
60 | // Default constructor | |
61 | // | |
49c7f0a5 | 62 | SetMC(kTRUE); |
9a281e83 | 63 | DefineInput(0, TChain::Class()); |
64 | DefineOutput(0, TObjArray::Class()); | |
65 | } | |
66 | ||
67 | //____________________________________________________________________ | |
68 | AliTRDcheckESD::~AliTRDcheckESD() | |
69 | { | |
70 | if(fHistos){ | |
71 | //fHistos->Delete(); | |
72 | delete fHistos; | |
73 | } | |
74 | } | |
75 | ||
76 | //____________________________________________________________________ | |
77 | void AliTRDcheckESD::ConnectInputData(Option_t *) | |
78 | { | |
79 | // | |
80 | // Link the Input Data | |
81 | // | |
82 | TTree *tree = dynamic_cast<TChain*>(GetInputData(0)); | |
83 | if(tree) tree->SetBranchStatus("Tracks", 1); | |
84 | ||
85 | AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*>(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()); | |
86 | fESD = esdH ? esdH->GetEvent() : 0x0; | |
87 | ||
88 | if(!HasMC()) return; | |
89 | AliMCEventHandler *mcH = dynamic_cast<AliMCEventHandler*>(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler()); | |
90 | fMC = mcH ? mcH->MCEvent() : 0x0; | |
91 | } | |
92 | ||
93 | //____________________________________________________________________ | |
94 | void AliTRDcheckESD::CreateOutputObjects() | |
95 | { | |
96 | // | |
97 | // Create Output Containers (TObjectArray containing 1D histograms) | |
98 | // | |
99 | OpenFile(0, "RECREATE"); | |
c2fd5953 | 100 | Histos(); |
9a281e83 | 101 | } |
102 | ||
965e895b | 103 | //____________________________________________________________________ |
ea4502f6 | 104 | TGraphErrors* AliTRDcheckESD::GetGraph(Int_t id, Option_t *opt) |
965e895b | 105 | { |
ea4502f6 | 106 | Bool_t kBUILD = strstr(opt, "b"), // build graph if none found |
107 | kCLEAR = strstr(opt, "c"); // clear existing graph | |
965e895b | 108 | |
109 | const Char_t *name[] = { | |
110 | "Geo", "Trk", "Pid", "Ref" | |
111 | }; | |
112 | const Char_t *title[] = { | |
113 | "TRD geometrical efficiency (TRDin/TPCout)" | |
114 | ,"TRD tracking efficiency (TRDout/TRDin)" | |
115 | ,"TRD PID efficiency (TRDpid/TRDin)" | |
116 | ,"TRD refit efficiency (TRDrefit/TRDin)" | |
117 | }; | |
118 | const Int_t ngr = sizeof(name)/sizeof(Char_t*); | |
119 | if(ngr != fgkNgraphs){ | |
120 | AliWarning("No of graphs defined different from definition"); | |
121 | return 0x0; | |
122 | } | |
123 | ||
124 | TObjArray *res = 0x0; | |
125 | if(!(res = (TObjArray*)fHistos->At(kResults)) || | |
126 | (id < 0 || id >= ngr)){ | |
ea4502f6 | 127 | AliWarning("Graph array missing."); |
965e895b | 128 | return 0x0; |
129 | } | |
130 | ||
131 | TGraphErrors *g = 0x0; | |
132 | if((g = dynamic_cast<TGraphErrors*>(res->At(id)))){ | |
59589fc9 | 133 | if(kCLEAR){ |
134 | for(Int_t ip=g->GetN(); ip--;) g->RemovePoint(ip); | |
135 | } else { | |
136 | PutTrendValue(name[id], g->GetMean(2), g->GetRMS(2)); | |
137 | } | |
965e895b | 138 | } else { |
139 | if(kBUILD){ | |
140 | g = new TGraphErrors(); | |
141 | g->SetNameTitle(name[id], title[id]); | |
142 | res->AddAt(g, id); | |
143 | } | |
144 | } | |
145 | return g; | |
146 | } | |
147 | ||
9a281e83 | 148 | //____________________________________________________________________ |
149 | void AliTRDcheckESD::Exec(Option_t *){ | |
150 | // | |
151 | // Run the Analysis | |
152 | // | |
153 | if(!fESD){ | |
48797466 | 154 | AliError("ESD event missing."); |
9a281e83 | 155 | return; |
156 | } | |
157 | ||
158 | // Get MC information if available | |
159 | AliStack * fStack = 0x0; | |
2b104c26 | 160 | if(HasMC()){ |
161 | if(!fMC){ | |
162 | AliWarning("MC event missing"); | |
9a281e83 | 163 | SetMC(kFALSE); |
2b104c26 | 164 | } else { |
165 | if(!(fStack = fMC->Stack())){ | |
166 | AliWarning("MC stack missing"); | |
167 | SetMC(kFALSE); | |
168 | } | |
9a281e83 | 169 | } |
170 | } | |
d12237d6 | 171 | Bool_t TRDin(0), TRDout(0), TRDpid(0); |
9a281e83 | 172 | |
9a281e83 | 173 | AliESDtrack *esdTrack = 0x0; |
174 | for(Int_t itrk = 0; itrk < fESD->GetNumberOfTracks(); itrk++){ | |
d12237d6 | 175 | TRDin=0;TRDout=0;TRDpid=0; |
9a281e83 | 176 | esdTrack = fESD->GetTrack(itrk); |
d12237d6 | 177 | |
178 | // if(esdTrack->GetNcls(1)) nTPC++; | |
179 | // if(esdTrack->GetNcls(2)) nTRD++; | |
9a281e83 | 180 | |
181 | // track status | |
d12237d6 | 182 | ULong_t status = esdTrack->GetStatus(); |
2b104c26 | 183 | //PrintStatus(status); |
d12237d6 | 184 | |
185 | // define TPC out tracks | |
186 | if(!Bool_t(status & AliESDtrack::kTPCout)) continue; | |
187 | if(esdTrack->GetKinkIndex(0) > 0) continue; | |
9a281e83 | 188 | |
189 | // TRD PID | |
190 | Double_t p[AliPID::kSPECIES]; esdTrack->GetTRDpid(p); | |
191 | // pid quality | |
ed15ef4f | 192 | //esdTrack->GetTRDntrackletsPID(); |
9a281e83 | 193 | |
194 | // look at external track param | |
195 | const AliExternalTrackParam *op = esdTrack->GetOuterParam(); | |
196 | Double_t xyz[3]; | |
197 | if(op){ | |
198 | op->GetXYZ(xyz); | |
199 | op->Global2LocalPosition(xyz, op->GetAlpha()); | |
200 | //printf("op @ X[%7.3f]\n", xyz[0]); | |
201 | } | |
202 | ||
203 | // read MC info | |
204 | if(!HasMC()) continue; | |
205 | ||
206 | Int_t fLabel = esdTrack->GetLabel(); | |
207 | if(TMath::Abs(fLabel) > fStack->GetNtrack()) continue; | |
208 | ||
209 | // read MC particle | |
210 | AliMCParticle *mcParticle = 0x0; | |
7aad0c47 | 211 | if(!(mcParticle = (AliMCParticle*) fMC->GetTrack(TMath::Abs(fLabel)))){ |
48797466 | 212 | AliWarning(Form("MC particle missing. Label[ %d].", fLabel)); |
9a281e83 | 213 | continue; |
214 | } | |
215 | ||
216 | AliTrackReference *ref = 0x0; | |
217 | Int_t nRefs = mcParticle->GetNumberOfTrackReferences(); | |
48797466 | 218 | if(!nRefs){ |
219 | AliWarning(Form("Track refs missing. Label[%d].", fLabel)); | |
220 | continue; | |
221 | } | |
9a281e83 | 222 | Int_t iref = 0; |
223 | while(iref<nRefs){ | |
224 | ref = mcParticle->GetTrackReference(iref); | |
965e895b | 225 | if(ref->LocalX() > fgkxTPC) break; |
9a281e83 | 226 | ref=0x0; iref++; |
227 | } | |
228 | ||
229 | // read TParticle | |
965e895b | 230 | //TParticle *tParticle = mcParticle->Particle(); |
48797466 | 231 | //Int_t fPdg = tParticle->GetPdgCode(); |
d12237d6 | 232 | // reject secondaries |
233 | //if(!tParticle->IsPrimary()) continue; | |
9a281e83 | 234 | |
d12237d6 | 235 | if(ref){ |
965e895b | 236 | if(ref->LocalX() > fgkxTOF){ // track skipping TRD fiducial volume |
48797466 | 237 | ref = mcParticle->GetTrackReference(TMath::Max(iref-1, 0)); |
9a281e83 | 238 | } else { |
d12237d6 | 239 | TRDin=1; |
240 | if(esdTrack->GetNcls(2)) TRDout=1; | |
ed15ef4f | 241 | if(esdTrack->GetTRDntrackletsPID()>=4) TRDpid=1; |
9a281e83 | 242 | } |
d12237d6 | 243 | } else { // track stopped in TPC |
48797466 | 244 | ref = mcParticle->GetTrackReference(TMath::Max(iref-1, 0)); |
245 | } | |
d12237d6 | 246 | // get the MC pt !! |
9a281e83 | 247 | Float_t pt = ref->Pt(); |
d12237d6 | 248 | |
9a281e83 | 249 | TH2 *h = (TH2I*)fHistos->At(kTRDstat); |
d12237d6 | 250 | if(status & AliESDtrack::kTPCout) h->Fill(pt, kTPCout); |
251 | if(/*status & AliESDtrack::k*/TRDin) h->Fill(pt, kTRDin); | |
9a281e83 | 252 | if(/*status & AliESDtrack::k*/TRDout){ |
253 | ((TH1*)fHistos->At(kNCl))->Fill(esdTrack->GetNcls(2)); | |
d12237d6 | 254 | h->Fill(pt, kTRDout); |
9a281e83 | 255 | } |
965e895b | 256 | if(/*status & AliESDtrack::k*/TRDpid) h->Fill(pt, kTRDpid); |
257 | if(status & AliESDtrack::kTRDrefit) h->Fill(pt, kTRDref); | |
9a281e83 | 258 | } |
9a281e83 | 259 | PostData(0, fHistos); |
260 | } | |
261 | ||
c2fd5953 | 262 | //____________________________________________________________________ |
263 | TObjArray* AliTRDcheckESD::Histos() | |
264 | { | |
265 | if(fHistos) return fHistos; | |
266 | ||
267 | fHistos = new TObjArray(kNhistos); | |
268 | //fHistos->SetOwner(kTRUE); | |
269 | ||
270 | TH1 *h = 0x0; | |
271 | ||
272 | // clusters per tracklet | |
273 | if(!(h = (TH1I*)gROOT->FindObject("hNCl"))){ | |
274 | h = new TH1I("hNCl", "Clusters per TRD track", 100, 0., 200.); | |
275 | h->GetXaxis()->SetTitle("N_{cl}^{TRD}"); | |
276 | h->GetYaxis()->SetTitle("entries"); | |
277 | } else h->Reset(); | |
278 | fHistos->AddAt(h, kNCl); | |
279 | ||
280 | // status bits histogram | |
281 | if(!(h = (TH2I*)gROOT->FindObject("hTRDstat"))){ | |
282 | h = new TH2I("hTRDstat", "TRD status bits", 100, 0., 20., kNbits, .5, kNbits+.5); | |
283 | h->GetXaxis()->SetTitle("p_{T} [GeV/c]"); | |
284 | h->GetYaxis()->SetTitle("status bits"); | |
285 | h->GetZaxis()->SetTitle("entries"); | |
286 | } else h->Reset(); | |
287 | fHistos->AddAt(h, kTRDstat); | |
288 | ||
289 | // results array | |
290 | TObjArray *res = new TObjArray(); | |
291 | res->SetName("Results"); | |
292 | fHistos->AddAt(res, kResults); | |
293 | return fHistos; | |
294 | } | |
295 | ||
965e895b | 296 | //____________________________________________________________________ |
297 | Bool_t AliTRDcheckESD::Load(const Char_t *filename, const Char_t *name) | |
298 | { | |
299 | if(!TFile::Open(filename)){ | |
300 | AliWarning(Form("Couldn't open file %s.", filename)); | |
301 | return kFALSE; | |
302 | } | |
303 | TObjArray *o = 0x0; | |
304 | if(!(o = (TObjArray*)gFile->Get(name ? name : GetName()))){ | |
305 | AliWarning("Missing histogram container."); | |
306 | return kFALSE; | |
307 | } | |
308 | fHistos = (TObjArray*)o->Clone(GetName()); | |
309 | gFile->Close(); | |
310 | return kTRUE; | |
311 | } | |
9a281e83 | 312 | |
59589fc9 | 313 | //_______________________________________________________ |
314 | Bool_t AliTRDcheckESD::PutTrendValue(const Char_t *name, Double_t val, Double_t err) | |
315 | { | |
316 | if(!fgFile){ | |
317 | fgFile = fopen("TRD.Performance.txt", "at"); | |
318 | } | |
319 | fprintf(fgFile, "%s_%s %f %f\n", GetName(), name, val, err); | |
320 | return kTRUE; | |
321 | } | |
322 | ||
9a281e83 | 323 | //____________________________________________________________________ |
324 | void AliTRDcheckESD::Terminate(Option_t *) | |
325 | { | |
965e895b | 326 | TObjArray *res = 0x0; |
327 | if(!(res = (TObjArray*)fHistos->At(kResults))){ | |
328 | AliWarning("Graph container missing."); | |
329 | return; | |
330 | } | |
331 | if(!res->GetEntriesFast()) res->Expand(fgkNgraphs); | |
48797466 | 332 | |
333 | // geometrical efficiency | |
965e895b | 334 | TH2I *h2 = (TH2I*)fHistos->At(kTRDstat); |
335 | TH1 *h1[2] = {0x0, 0x0}; | |
d12237d6 | 336 | h1[0] = h2->ProjectionX("px0", kTPCout, kTPCout); |
337 | h1[1] = h2->ProjectionX("px1", kTRDin, kTRDin); | |
965e895b | 338 | Process(h1, GetGraph(0)); |
ea4502f6 | 339 | delete h1[0];delete h1[1]; |
48797466 | 340 | |
341 | // tracking efficiency | |
d12237d6 | 342 | h1[0] = h2->ProjectionX("px0", kTRDin, kTRDin); |
343 | h1[1] = h2->ProjectionX("px1", kTRDout, kTRDout); | |
965e895b | 344 | Process(h1, GetGraph(1)); |
ea4502f6 | 345 | delete h1[1]; |
48797466 | 346 | |
347 | // PID efficiency | |
965e895b | 348 | //h1[0] = h2->ProjectionX("px0", kTRDin, kTRDin); |
d12237d6 | 349 | h1[1] = h2->ProjectionX("px1", kTRDpid, kTRDpid); |
965e895b | 350 | Process(h1, GetGraph(2)); |
ea4502f6 | 351 | delete h1[1]; |
965e895b | 352 | |
353 | // Refit efficiency | |
354 | //h1[0] = h2->ProjectionX("px0", kTRDin, kTRDin); | |
355 | h1[1] = h2->ProjectionX("px1", kTRDref, kTRDref); | |
356 | Process(h1, GetGraph(3)); | |
ea4502f6 | 357 | delete h1[1]; |
965e895b | 358 | } |
359 | ||
360 | //____________________________________________________________________ | |
361 | void AliTRDcheckESD::Process(TH1 **h1, TGraphErrors *g) | |
362 | { | |
363 | Int_t n1 = 0, n2 = 0, ip=0; | |
364 | Double_t eff = 0.; | |
365 | ||
366 | TAxis *ax = h1[0]->GetXaxis(); | |
48797466 | 367 | for(Int_t ib=1; ib<=ax->GetNbins(); ib++){ |
368 | if(!(n1 = (Int_t)h1[0]->GetBinContent(ib))) continue; | |
369 | n2 = (Int_t)h1[1]->GetBinContent(ib); | |
370 | eff = n2/Float_t(n1); | |
371 | ||
372 | ip=g->GetN(); | |
373 | g->SetPoint(ip, ax->GetBinCenter(ib), eff); | |
374 | g->SetPointError(ip, 0., n2 ? eff*TMath::Sqrt(1./n1+1./n2) : 0.); | |
375 | } | |
2b104c26 | 376 | } |
377 | ||
378 | //____________________________________________________________________ | |
379 | void AliTRDcheckESD::PrintStatus(ULong_t status) | |
380 | { | |
381 | printf("ITS[i(%d) o(%d) r(%d)] TPC[i(%d) o(%d) r(%d) p(%d)] TRD[i(%d) o(%d) r(%d) p(%d) s(%d)] HMPID[o(%d) p(%d)]\n" | |
382 | ,Bool_t(status & AliESDtrack::kITSin) | |
383 | ,Bool_t(status & AliESDtrack::kITSout) | |
384 | ,Bool_t(status & AliESDtrack::kITSrefit) | |
385 | ,Bool_t(status & AliESDtrack::kTPCin) | |
386 | ,Bool_t(status & AliESDtrack::kTPCout) | |
387 | ,Bool_t(status & AliESDtrack::kTPCrefit) | |
388 | ,Bool_t(status & AliESDtrack::kTPCpid) | |
389 | ,Bool_t(status & AliESDtrack::kTRDin) | |
390 | ,Bool_t(status & AliESDtrack::kTRDout) | |
391 | ,Bool_t(status & AliESDtrack::kTRDrefit) | |
392 | ,Bool_t(status & AliESDtrack::kTRDpid) | |
393 | ,Bool_t(status & AliESDtrack::kTRDStop) | |
394 | ,Bool_t(status & AliESDtrack::kHMPIDout) | |
395 | ,Bool_t(status & AliESDtrack::kHMPIDpid) | |
396 | ); | |
9a281e83 | 397 | } |
2b104c26 | 398 |