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7cc34f08 | 1 | //------------------------------------------------------------------------------ |
2 | // Implementation of AliPerformanceTPC class. It keeps information from | |
3 | // comparison of reconstructed and MC particle tracks. In addtion, | |
4 | // it keeps selection cuts used during comparison. The comparison | |
5 | // information is stored in the ROOT histograms. Analysis of these | |
6 | // histograms can be done by using Analyse() class function. The result of | |
7 | // the analysis (histograms/graphs) are stored in the folder which is | |
8 | // a data member of AliPerformanceTPC. | |
9 | // | |
10 | // Author: J.Otwinowski 04/02/2008 | |
11 | //------------------------------------------------------------------------------ | |
12 | ||
13 | /* | |
14 | ||
15 | // after running comparison task, read the file, and get component | |
16 | gROOT->LoadMacro("$ALICE_ROOT/PWG1/Macros/LoadMyLibs.C"); | |
17 | LoadMyLibs(); | |
18 | ||
19 | TFile f("Output.root"); | |
20 | AliPerformanceTPC * compObj = (AliPerformanceTPC*)coutput->FindObject("AliPerformanceTPC"); | |
21 | ||
22 | // analyse comparison data | |
23 | compObj->Analyse(); | |
24 | ||
25 | // the output histograms/graphs will be stored in the folder "folderTPC" | |
26 | compObj->GetAnalysisFolder()->ls("*"); | |
27 | ||
28 | // user can save whole comparison object (or only folder with anlysed histograms) | |
29 | // in the seperate output file (e.g.) | |
30 | TFile fout("Analysed_TPC.root","recreate"); | |
31 | compObj->Write(); // compObj->GetAnalysisFolder()->Write(); | |
32 | fout.Close(); | |
33 | ||
34 | */ | |
35 | ||
36 | #include "TCanvas.h" | |
37 | #include "TH1.h" | |
38 | #include "TH2.h" | |
39 | #include "TAxis.h" | |
40 | #include "TPostScript.h" | |
41 | ||
42 | #include "AliPerformanceTPC.h" | |
43 | #include "AliESDEvent.h" | |
44 | #include "AliESDVertex.h" | |
45 | #include "AliESDtrack.h" | |
46 | #include "AliLog.h" | |
47 | #include "AliMCEvent.h" | |
48 | #include "AliHeader.h" | |
49 | #include "AliGenEventHeader.h" | |
50 | #include "AliStack.h" | |
51 | #include "AliMCInfoCuts.h" | |
52 | #include "AliRecInfoCuts.h" | |
53 | #include "AliTracker.h" | |
54 | #include "AliTreeDraw.h" | |
55 | ||
56 | using namespace std; | |
57 | ||
58 | ClassImp(AliPerformanceTPC) | |
59 | ||
60 | //_____________________________________________________________________________ | |
61 | AliPerformanceTPC::AliPerformanceTPC(): | |
62 | AliPerformanceObject("AliPerformanceTPC"), | |
a13f4653 | 63 | fTPCEventHisto(0), |
64 | fTPCTrackHisto(0), | |
7cc34f08 | 65 | |
66 | // Cuts | |
67 | fCutsRC(0), | |
68 | fCutsMC(0), | |
69 | ||
70 | // histogram folder | |
71 | fAnalysisFolder(0) | |
72 | { | |
73 | Init(); | |
74 | } | |
75 | ||
76 | //_____________________________________________________________________________ | |
77 | AliPerformanceTPC::AliPerformanceTPC(Char_t* name="AliPerformanceTPC", Char_t* title="AliPerformanceTPC",Int_t analysisMode=0,Bool_t hptGenerator=kFALSE): | |
78 | AliPerformanceObject(name,title), | |
a13f4653 | 79 | fTPCEventHisto(0), |
80 | fTPCTrackHisto(0), | |
7cc34f08 | 81 | |
82 | // Cuts | |
83 | fCutsRC(0), | |
84 | fCutsMC(0), | |
85 | ||
86 | // histogram folder | |
87 | fAnalysisFolder(0) | |
88 | { | |
89 | // named constructor | |
90 | // | |
91 | SetAnalysisMode(analysisMode); | |
92 | SetHptGenerator(hptGenerator); | |
93 | ||
94 | Init(); | |
95 | } | |
96 | ||
97 | //_____________________________________________________________________________ | |
98 | AliPerformanceTPC::~AliPerformanceTPC() | |
99 | { | |
100 | // destructor | |
101 | ||
a13f4653 | 102 | if(fTPCEventHisto) delete fTPCEventHisto; fTPCEventHisto=0; |
103 | if(fTPCTrackHisto) delete fTPCTrackHisto; fTPCTrackHisto=0; | |
7cc34f08 | 104 | if(fAnalysisFolder) delete fAnalysisFolder; fAnalysisFolder=0; |
105 | } | |
106 | ||
107 | //_____________________________________________________________________________ | |
108 | void AliPerformanceTPC::Init(){ | |
109 | // | |
110 | // histogram bining | |
111 | // | |
112 | ||
113 | // set pt bins | |
114 | Int_t nPtBins = 50; | |
115 | Double_t ptMin = 1.e-2, ptMax = 10.; | |
116 | ||
117 | Double_t *binsPt = 0; | |
118 | if (IsHptGenerator()) { | |
119 | nPtBins = 100; ptMax = 100.; | |
120 | binsPt = CreateLogAxis(nPtBins,ptMin,ptMax); | |
121 | } else { | |
122 | binsPt = CreateLogAxis(nPtBins,ptMin,ptMax); | |
123 | } | |
124 | ||
125 | /* | |
126 | Int_t nPtBins = 31; | |
127 | Double_t binsPt[32] = {0.,0.05,0.1,0.15,0.2,0.25,0.3,0.35,0.4,0.45,0.5,0.55,0.6,0.7,0.8,0.9,1.0,1.2,1.4,1.6,1.8,2.0,2.25,2.5,2.75,3.,3.5,4.,5.,6.,8.,10.}; | |
128 | Double_t ptMin = 0., ptMax = 10.; | |
129 | ||
130 | if(IsHptGenerator() == kTRUE) { | |
131 | nPtBins = 100; | |
132 | ptMin = 0.; ptMax = 100.; | |
133 | } | |
134 | */ | |
135 | ||
a13f4653 | 136 | // Xv:Yv:Zv:mult:multP:multN |
137 | Int_t binsTPCEventHisto[6]= {100, 100, 100, 101, 101, 101 }; | |
138 | Double_t minTPCEventHisto[6]={-10., -10., -30., -0.5, -0.5, -0.5 }; | |
139 | Double_t maxTPCEventHisto[6]={ 10., 10., 30., 100.5, 100.5, 100.5 }; | |
140 | ||
141 | fTPCEventHisto = new THnSparseF("fTPCEventHisto","Xv:Yv:Zv:mult:multP:multN",6,binsTPCEventHisto,minTPCEventHisto,maxTPCEventHisto); | |
142 | fTPCEventHisto->GetAxis(0)->SetTitle("Xv (cm)"); | |
143 | fTPCEventHisto->GetAxis(1)->SetTitle("Yv (cm)"); | |
144 | fTPCEventHisto->GetAxis(2)->SetTitle("Zv (cm)"); | |
145 | fTPCEventHisto->GetAxis(3)->SetTitle("mult"); | |
146 | fTPCEventHisto->GetAxis(4)->SetTitle("multP"); | |
147 | fTPCEventHisto->GetAxis(5)->SetTitle("multN"); | |
148 | fTPCEventHisto->Sumw2(); | |
149 | ||
150 | ||
151 | // nTPCClust:chi2PerTPCClust:nTPCClustFindRatio:DCAr:DCAz:eta:phi:pt:charge | |
152 | Int_t binsTPCTrackHisto[9]= { 160, 50, 60, 100, 100, 30, 90, nPtBins, 3 }; | |
153 | Double_t minTPCTrackHisto[9]={ 0., 0., 0., -10, -10., -1.5, 0., ptMin, -1.5}; | |
154 | Double_t maxTPCTrackHisto[9]={ 160., 10., 1.2, 10, 10., 1.5, 2.*TMath::Pi(), ptMax, 1.5}; | |
155 | ||
156 | fTPCTrackHisto = new THnSparseF("fTPCTrackHisto","nClust:chi2PerClust:nClust/nFindableClust:DCAr:DCAz:eta:phi:pt:charge",9,binsTPCTrackHisto,minTPCTrackHisto,maxTPCTrackHisto); | |
157 | fTPCTrackHisto->SetBinEdges(7,binsPt); | |
158 | ||
159 | fTPCTrackHisto->GetAxis(0)->SetTitle("nClust"); | |
160 | fTPCTrackHisto->GetAxis(1)->SetTitle("chi2PerClust"); | |
161 | fTPCTrackHisto->GetAxis(2)->SetTitle("nClust/nFindableClust"); | |
162 | fTPCTrackHisto->GetAxis(3)->SetTitle("DCAr (cm)"); | |
163 | fTPCTrackHisto->GetAxis(4)->SetTitle("DCAz (cm)"); | |
164 | fTPCTrackHisto->GetAxis(5)->SetTitle("#eta"); | |
165 | fTPCTrackHisto->GetAxis(6)->SetTitle("#phi (rad)"); | |
166 | fTPCTrackHisto->GetAxis(7)->SetTitle("p_{T} (GeV/c)"); | |
167 | fTPCTrackHisto->GetAxis(8)->SetTitle("charge"); | |
168 | fTPCTrackHisto->Sumw2(); | |
7cc34f08 | 169 | |
170 | // Init cuts | |
171 | if(!fCutsMC) | |
172 | AliDebug(AliLog::kError, "ERROR: Cannot find AliMCInfoCuts object"); | |
173 | if(!fCutsRC) | |
174 | AliDebug(AliLog::kError, "ERROR: Cannot find AliRecInfoCuts object"); | |
175 | ||
176 | // init folder | |
177 | fAnalysisFolder = CreateFolder("folderTPC","Analysis Resolution Folder"); | |
178 | } | |
179 | ||
180 | //_____________________________________________________________________________ | |
181 | void AliPerformanceTPC::ProcessTPC(AliStack* const stack, AliESDtrack *const esdTrack) | |
182 | { | |
183 | if(!esdTrack) return; | |
184 | ||
185 | // Fill TPC only resolution comparison information | |
186 | const AliExternalTrackParam *track = esdTrack->GetTPCInnerParam(); | |
187 | if(!track) return; | |
188 | ||
189 | Float_t dca[2], cov[3]; // dca_xy, dca_z, sigma_xy, sigma_xy_z, sigma_z | |
190 | esdTrack->GetImpactParametersTPC(dca,cov); | |
191 | ||
a13f4653 | 192 | Float_t q = esdTrack->Charge(); |
7cc34f08 | 193 | Float_t pt = track->Pt(); |
194 | Float_t eta = track->Eta(); | |
195 | Float_t phi = track->Phi(); | |
196 | Int_t nClust = esdTrack->GetTPCclusters(0); | |
197 | Int_t nFindableClust = esdTrack->GetTPCNclsF(); | |
198 | ||
199 | Float_t chi2PerCluster = 0.; | |
200 | if(nClust>0.) chi2PerCluster = esdTrack->GetTPCchi2()/Float_t(nClust); | |
201 | ||
202 | Float_t clustPerFindClust = 0.; | |
203 | if(nFindableClust>0.) clustPerFindClust = Float_t(nClust)/nFindableClust; | |
204 | ||
a13f4653 | 205 | // |
206 | // select primaries | |
207 | // | |
208 | Double_t dcaToVertex = -1; | |
209 | if( fCutsRC->GetDCAToVertex2D() ) | |
210 | { | |
211 | dcaToVertex = TMath::Sqrt(dca[0]*dca[0]/fCutsRC->GetMaxDCAToVertexXY()/fCutsRC->GetMaxDCAToVertexXY() + dca[1]*dca[1]/fCutsRC->GetMaxDCAToVertexZ()/fCutsRC->GetMaxDCAToVertexZ()); | |
7cc34f08 | 212 | } |
a13f4653 | 213 | if(fCutsRC->GetDCAToVertex2D() && dcaToVertex > 1) return; |
214 | if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[0]) > fCutsRC->GetMaxDCAToVertexXY()) return; | |
215 | if(!fCutsRC->GetDCAToVertex2D() && TMath::Abs(dca[1]) > fCutsRC->GetMaxDCAToVertexZ()) return; | |
216 | ||
217 | Double_t vTPCTrackHisto[9] = {nClust,chi2PerCluster,clustPerFindClust,dca[0],dca[1],eta,phi,pt,q}; | |
218 | fTPCTrackHisto->Fill(vTPCTrackHisto); | |
7cc34f08 | 219 | |
220 | // | |
221 | // Fill rec vs MC information | |
222 | // | |
223 | if(!stack) return; | |
224 | ||
225 | } | |
226 | ||
227 | //_____________________________________________________________________________ | |
228 | void AliPerformanceTPC::ProcessTPCITS(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/) | |
229 | { | |
230 | // Fill comparison information (TPC+ITS) | |
231 | AliDebug(AliLog::kWarning, "Warning: Not implemented"); | |
232 | } | |
233 | ||
234 | //_____________________________________________________________________________ | |
235 | void AliPerformanceTPC::ProcessConstrained(AliStack* const /*stack*/, AliESDtrack *const /*esdTrack*/) | |
236 | { | |
237 | // Fill comparison information (constarained parameters) | |
238 | AliDebug(AliLog::kWarning, "Warning: Not implemented"); | |
239 | } | |
240 | ||
241 | //_____________________________________________________________________________ | |
242 | void AliPerformanceTPC::Exec(AliMCEvent* const mcEvent, AliESDEvent *const esdEvent, AliESDfriend *const esdFriend, const Bool_t bUseMC, const Bool_t bUseESDfriend) | |
243 | { | |
244 | // Process comparison information | |
245 | // | |
246 | if(!esdEvent) | |
247 | { | |
248 | Error("Exec","esdEvent not available"); | |
249 | return; | |
250 | } | |
251 | AliHeader* header = 0; | |
252 | AliGenEventHeader* genHeader = 0; | |
253 | AliStack* stack = 0; | |
254 | TArrayF vtxMC(3); | |
255 | ||
256 | if(bUseMC) | |
257 | { | |
258 | if(!mcEvent) { | |
259 | Error("Exec","mcEvent not available"); | |
260 | return; | |
261 | } | |
262 | // get MC event header | |
263 | header = mcEvent->Header(); | |
264 | if (!header) { | |
265 | Error("Exec","Header not available"); | |
266 | return; | |
267 | } | |
268 | // MC particle stack | |
269 | stack = mcEvent->Stack(); | |
270 | if (!stack) { | |
271 | Error("Exec","Stack not available"); | |
272 | return; | |
273 | } | |
274 | // get MC vertex | |
275 | genHeader = header->GenEventHeader(); | |
276 | if (!genHeader) { | |
277 | Error("Exec","Could not retrieve genHeader from Header"); | |
278 | return; | |
279 | } | |
280 | genHeader->PrimaryVertex(vtxMC); | |
281 | } | |
282 | ||
283 | // use ESD friends | |
284 | if(bUseESDfriend) { | |
285 | if(!esdFriend) { | |
286 | Error("Exec","esdFriend not available"); | |
287 | return; | |
288 | } | |
289 | } | |
290 | ||
291 | // Process events | |
a13f4653 | 292 | Int_t mult=0; Int_t multP=0; Int_t multN=0; |
7cc34f08 | 293 | for (Int_t iTrack = 0; iTrack < esdEvent->GetNumberOfTracks(); iTrack++) |
294 | { | |
a13f4653 | 295 | AliESDtrack *track = esdEvent->GetTrack(iTrack); |
7cc34f08 | 296 | if(!track) continue; |
297 | ||
298 | if(GetAnalysisMode() == 0) ProcessTPC(stack,track); | |
299 | else if(GetAnalysisMode() == 1) ProcessTPCITS(stack,track); | |
300 | else if(GetAnalysisMode() == 2) ProcessConstrained(stack,track); | |
301 | else { | |
302 | printf("ERROR: AnalysisMode %d \n",fAnalysisMode); | |
303 | return; | |
304 | } | |
a13f4653 | 305 | |
306 | // TPC only | |
307 | AliESDtrack *tpcTrack = AliESDtrackCuts::GetTPCOnlyTrack(esdEvent,iTrack); | |
308 | if(!tpcTrack) continue; | |
309 | ||
310 | // track selection | |
311 | if( fCutsRC->AcceptTrack(tpcTrack) ) { | |
312 | mult++; | |
313 | if(tpcTrack->Charge()>0.) multP++; | |
314 | if(tpcTrack->Charge()<0.) multN++; | |
315 | } | |
316 | ||
317 | if(tpcTrack) delete tpcTrack; | |
7cc34f08 | 318 | } |
a13f4653 | 319 | // |
320 | const AliESDVertex *vtxESD = esdEvent->GetPrimaryVertexTPC(); | |
321 | Double_t vTPCEvent[6] = {vtxESD->GetXv(),vtxESD->GetYv(),vtxESD->GetZv(),mult,multP,multN}; | |
322 | fTPCEventHisto->Fill(vTPCEvent); | |
7cc34f08 | 323 | } |
324 | ||
325 | //_____________________________________________________________________________ | |
326 | void AliPerformanceTPC::Analyse() { | |
327 | // | |
328 | // Analyse comparison information and store output histograms | |
329 | // in the folder "folderTPC" | |
330 | // | |
331 | TH1::AddDirectory(kFALSE); | |
a13f4653 | 332 | TH1F *h=0; |
7cc34f08 | 333 | TH2F *h2D=0; |
334 | TObjArray *aFolderObj = new TObjArray; | |
7cc34f08 | 335 | char name[256]; |
336 | char title[256]; | |
a13f4653 | 337 | |
338 | // | |
339 | // event histograms | |
340 | // | |
341 | for(Int_t i=0; i<6; i++) | |
342 | { | |
343 | h = (TH1F*)fTPCEventHisto->Projection(i); | |
344 | sprintf(name,"h_tpc_event_%d",i); | |
345 | h->SetName(name); | |
346 | h->GetXaxis()->SetTitle(fTPCEventHisto->GetAxis(i)->GetTitle()); | |
347 | h->GetYaxis()->SetTitle("events"); | |
348 | sprintf(title,"%s",fTPCEventHisto->GetAxis(i)->GetTitle()); | |
349 | h->SetTitle(title); | |
350 | ||
351 | aFolderObj->Add(h); | |
352 | } | |
353 | ||
354 | // | |
355 | // Track histograms | |
356 | // | |
357 | for(Int_t i=0; i<9; i++) | |
358 | { | |
359 | h = (TH1F*)fTPCTrackHisto->Projection(i); | |
360 | sprintf(name,"h_tpc_track_%d",i); | |
361 | h->SetName(name); | |
362 | h->GetXaxis()->SetTitle(fTPCTrackHisto->GetAxis(i)->GetTitle()); | |
363 | h->GetYaxis()->SetTitle("tracks"); | |
364 | sprintf(title,"%s",fTPCTrackHisto->GetAxis(i)->GetTitle()); | |
365 | h->SetTitle(title); | |
366 | ||
367 | if(i==7) h->Scale(1,"width"); | |
368 | aFolderObj->Add(h); | |
369 | } | |
370 | ||
371 | // | |
372 | for(Int_t i=0; i<8; i++) | |
7cc34f08 | 373 | { |
a13f4653 | 374 | for(Int_t j=i+1; j<9; j++) |
7cc34f08 | 375 | { |
a13f4653 | 376 | h2D = (TH2F*)fTPCTrackHisto->Projection(i,j); |
377 | sprintf(name,"h_tpc_track_%d_vs_%d",i,j); | |
7cc34f08 | 378 | h2D->SetName(name); |
a13f4653 | 379 | h2D->GetXaxis()->SetTitle(fTPCTrackHisto->GetAxis(j)->GetTitle()); |
380 | h2D->GetYaxis()->SetTitle(fTPCTrackHisto->GetAxis(i)->GetTitle()); | |
381 | sprintf(title,"%s vs %s",fTPCTrackHisto->GetAxis(j)->GetTitle(),fTPCTrackHisto->GetAxis(i)->GetTitle()); | |
7cc34f08 | 382 | h2D->SetTitle(title); |
383 | ||
a13f4653 | 384 | if(j==7) h2D->SetBit(TH1::kLogX); |
7cc34f08 | 385 | aFolderObj->Add(h2D); |
386 | } | |
387 | } | |
388 | ||
389 | // export objects to analysis folder | |
390 | fAnalysisFolder = ExportToFolder(aFolderObj); | |
391 | ||
392 | // delete only TObjArray | |
393 | if(aFolderObj) delete aFolderObj; | |
394 | } | |
395 | ||
396 | //_____________________________________________________________________________ | |
397 | TFolder* AliPerformanceTPC::ExportToFolder(TObjArray * array) | |
398 | { | |
399 | // recreate folder avery time and export objects to new one | |
400 | // | |
401 | AliPerformanceTPC * comp=this; | |
402 | TFolder *folder = comp->GetAnalysisFolder(); | |
403 | ||
404 | TString name, title; | |
405 | TFolder *newFolder = 0; | |
406 | Int_t i = 0; | |
407 | Int_t size = array->GetSize(); | |
408 | ||
409 | if(folder) { | |
410 | // get name and title from old folder | |
411 | name = folder->GetName(); | |
412 | title = folder->GetTitle(); | |
413 | ||
414 | // delete old one | |
415 | delete folder; | |
416 | ||
417 | // create new one | |
418 | newFolder = CreateFolder(name.Data(),title.Data()); | |
419 | newFolder->SetOwner(); | |
420 | ||
421 | // add objects to folder | |
422 | while(i < size) { | |
423 | newFolder->Add(array->At(i)); | |
424 | i++; | |
425 | } | |
426 | } | |
427 | ||
428 | return newFolder; | |
429 | } | |
430 | ||
431 | //_____________________________________________________________________________ | |
432 | Long64_t AliPerformanceTPC::Merge(TCollection* const list) | |
433 | { | |
434 | // Merge list of objects (needed by PROOF) | |
435 | ||
436 | if (!list) | |
437 | return 0; | |
438 | ||
439 | if (list->IsEmpty()) | |
440 | return 1; | |
441 | ||
442 | TIterator* iter = list->MakeIterator(); | |
443 | TObject* obj = 0; | |
444 | ||
445 | // collection of generated histograms | |
446 | Int_t count=0; | |
447 | while((obj = iter->Next()) != 0) | |
448 | { | |
a13f4653 | 449 | AliPerformanceTPC* entry = dynamic_cast<AliPerformanceTPC*>(obj); |
450 | if (entry == 0) continue; | |
7cc34f08 | 451 | |
a13f4653 | 452 | fTPCEventHisto->Add(entry->fTPCEventHisto); |
453 | fTPCTrackHisto->Add(entry->fTPCTrackHisto); | |
7cc34f08 | 454 | |
a13f4653 | 455 | count++; |
7cc34f08 | 456 | } |
457 | ||
458 | return count; | |
459 | } | |
460 | ||
461 | //_____________________________________________________________________________ | |
462 | TFolder* AliPerformanceTPC::CreateFolder(TString name,TString title) { | |
463 | // create folder for analysed histograms | |
464 | // | |
465 | TFolder *folder = 0; | |
466 | folder = new TFolder(name.Data(),title.Data()); | |
467 | ||
468 | return folder; | |
469 | } |