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c630aafd | 1 | /**************************************************************************** |
5102bab6 | 2 | * Very important, delicate and rather obscure macro. * |
3 | * * | |
4 | * Creates list of "trackable" tracks, * | |
5 | * calculates efficiency, resolutions etc. * | |
6 | * The ESD tracks must be in an appropriate state (kITSin or kITSrefit) * | |
7 | * * | |
c630aafd | 8 | * Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch * |
9 | ****************************************************************************/ | |
10 | ||
11 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
4fa1e629 | 12 | #include <TMath.h> |
13 | #include <TError.h> | |
ddae8318 | 14 | #include <Riostream.h> |
4fa1e629 | 15 | #include <TH1F.h> |
16 | #include <TH2F.h> | |
17 | #include <TTree.h> | |
18 | #include <TParticle.h> | |
19 | #include <TCanvas.h> | |
20 | #include <TLine.h> | |
21 | #include <TText.h> | |
22 | #include <TBenchmark.h> | |
23 | #include <TStyle.h> | |
8b462fd8 | 24 | #include <TFile.h> |
4fa1e629 | 25 | #include <TROOT.h> |
03248e6d | 26 | |
c630aafd | 27 | #include "AliStack.h" |
4fa1e629 | 28 | #include "AliHeader.h" |
29 | #include "AliTrackReference.h" | |
88cb7938 | 30 | #include "AliRunLoader.h" |
4fa1e629 | 31 | #include "AliRun.h" |
4514157e | 32 | #include "AliESDEvent.h" |
4fa1e629 | 33 | |
00a7cc50 | 34 | #include "AliITSRecPoint.h" |
4fa1e629 | 35 | #include "AliITSLoader.h" |
03248e6d | 36 | #endif |
37 | ||
4fa1e629 | 38 | Int_t GoodTracksITS(const Char_t *dir="."); |
5102bab6 | 39 | |
c630aafd | 40 | extern AliRun *gAlice; |
4fa1e629 | 41 | extern TBenchmark *gBenchmark; |
42 | extern TROOT *gROOT; | |
c630aafd | 43 | |
4fa1e629 | 44 | static Int_t allgood=0; |
45 | static Int_t allselected=0; | |
46 | static Int_t allfound=0; | |
47 | ||
48 | Int_t AliITSComparisonV2 | |
7e9ae194 | 49 | (Float_t ptcutl=0.2, Float_t ptcuth=10., const Char_t *dir=".") { |
4fa1e629 | 50 | gBenchmark->Start("AliITSComparisonV2"); |
51 | ||
52 | ::Info("AliITSComparisonV2.C","Doing comparison..."); | |
88cb7938 | 53 | |
4fa1e629 | 54 | |
55 | TH1F *hp=(TH1F*)gROOT->FindObject("hp"); | |
56 | if (!hp) hp=new TH1F("hp","PHI resolution",50,-20.,20.); | |
57 | hp->SetFillColor(4); | |
58 | ||
59 | TH1F *hl=(TH1F*)gROOT->FindObject("hl"); | |
60 | if (!hl) hl=new TH1F("hl","LAMBDA resolution",50,-20,20); | |
61 | hl->SetFillColor(4); | |
62 | ||
63 | TH1F *hpt=(TH1F*)gROOT->FindObject("hpt"); | |
64 | if (!hpt) hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); | |
65 | hpt->SetFillColor(2); | |
66 | ||
67 | TH1F *hmpt=(TH1F*)gROOT->FindObject("hmpt"); | |
68 | if (!hmpt) | |
49d13e89 | 69 | hmpt=new TH1F("hmpt","Transverse impact parameter",30,-777,777); |
4fa1e629 | 70 | hmpt->SetFillColor(6); |
71 | ||
72 | TH1F *hz=(TH1F*)gROOT->FindObject("hz"); | |
49d13e89 | 73 | if (!hz) hz=new TH1F("hz","Longitudinal impact parameter",30,-777,777); |
4fa1e629 | 74 | |
75 | ||
76 | ||
77 | TH1F *hgood=(TH1F*)gROOT->FindObject("hgood"); | |
78 | if (!hgood) hgood=new TH1F("hgood","Good tracks",30,0.2,6.1); | |
79 | ||
80 | TH1F *hfound=(TH1F*)gROOT->FindObject("hfound"); | |
81 | if (!hfound) hfound=new TH1F("hfound","Found tracks",30,0.2,6.1); | |
82 | ||
83 | TH1F *hfake=(TH1F*)gROOT->FindObject("hfake"); | |
84 | if (!hfake) hfake=new TH1F("hfake","Fake tracks",30,0.2,6.1); | |
85 | ||
86 | TH1F *hg=(TH1F*)gROOT->FindObject("hg"); | |
87 | if (!hg) hg=new TH1F("hg","Efficiency for good tracks",30,0.2,6.1); | |
88 | hg->SetLineColor(4); hg->SetLineWidth(2); | |
89 | ||
90 | TH1F *hf=(TH1F*)gROOT->FindObject("hf"); | |
91 | if (!hf) hf=new TH1F("hf","Efficiency for fake tracks",30,0.2,6.1); | |
92 | hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2); | |
93 | ||
94 | TH1F *he=(TH1F*)gROOT->FindObject("he"); | |
95 | if (!he) | |
4514157e | 96 | he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,200.); |
4fa1e629 | 97 | |
98 | TH2F *hep=(TH2F*)gROOT->FindObject("hep"); | |
99 | if (!hep) hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.); | |
100 | hep->SetMarkerStyle(8); | |
101 | hep->SetMarkerSize(0.4); | |
102 | ||
103 | ||
104 | Char_t fname[100]; | |
105 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
106 | ||
107 | TFile *refFile=TFile::Open(fname,"old"); | |
108 | if (!refFile || !refFile->IsOpen()) { | |
109 | ::Info("AliITSComparisonV2.C","Marking good tracks (will take a while)..."); | |
110 | if (GoodTracksITS(dir)) { | |
111 | ::Error("AliITSComparisonV2.C","Can't generate the reference file !"); | |
112 | return 1; | |
113 | } | |
c630aafd | 114 | } |
4fa1e629 | 115 | refFile=TFile::Open(fname,"old"); |
116 | if (!refFile || !refFile->IsOpen()) { | |
117 | ::Error("AliITSComparisonV2.C","Can't open the reference file !"); | |
118 | return 1; | |
119 | } | |
120 | ||
121 | TTree *itsTree=(TTree*)refFile->Get("itsTree"); | |
122 | if (!itsTree) { | |
123 | ::Error("AliITSComparisonV2.C","Can't get the reference tree !"); | |
124 | return 2; | |
c630aafd | 125 | } |
4fa1e629 | 126 | TBranch *branch=itsTree->GetBranch("ITS"); |
127 | if (!branch) { | |
128 | ::Error("AliITSComparisonV2.C","Can't get the ITS branch !"); | |
129 | return 3; | |
03248e6d | 130 | } |
4fa1e629 | 131 | TClonesArray dummy("AliTrackReference",1000), *refs=&dummy; |
132 | branch->SetAddress(&refs); | |
133 | ||
03248e6d | 134 | |
4fa1e629 | 135 | sprintf(fname,"%s/AliESDs.root",dir); |
136 | TFile *ef=TFile::Open(fname); | |
5102bab6 | 137 | if ((!ef)||(!ef->IsOpen())) { |
4fa1e629 | 138 | sprintf(fname,"%s/AliESDits.root",dir); |
139 | ef=TFile::Open(fname); | |
140 | if ((!ef)||(!ef->IsOpen())) { | |
141 | ::Error("AliITSComparisonV2.C","Can't open AliESDits.root !"); | |
142 | return 4; | |
143 | } | |
5102bab6 | 144 | } |
4514157e | 145 | AliESDEvent* event = new AliESDEvent(); |
8b462fd8 | 146 | TTree* esdTree = (TTree*) ef->Get("esdTree"); |
147 | if (!esdTree) { | |
148 | ::Error("AliITSComparison.C", "no ESD tree found"); | |
149 | return 6; | |
150 | } | |
4514157e | 151 | event->ReadFromTree(esdTree); |
4fa1e629 | 152 | |
153 | ||
154 | //******* Loop over events ********* | |
155 | Int_t e=0; | |
8b462fd8 | 156 | while (esdTree->GetEvent(e)) { |
4fa1e629 | 157 | cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n"; |
158 | ||
4fa1e629 | 159 | Int_t nentr=event->GetNumberOfTracks(); |
160 | allfound+=nentr; | |
161 | ||
162 | if (itsTree->GetEvent(e++)==0) { | |
163 | cerr<<"No reconstructable tracks !\n"; | |
164 | continue; | |
18856a77 | 165 | } |
18856a77 | 166 | |
4fa1e629 | 167 | Int_t ngood=refs->GetEntriesFast(); |
168 | allgood+=ngood; | |
03248e6d | 169 | |
4fa1e629 | 170 | const Int_t MAX=15000; |
171 | Int_t notf[MAX], nnotf=0; | |
172 | Int_t fake[MAX], nfake=0; | |
173 | Int_t mult[MAX], numb[MAX], nmult=0; | |
174 | Int_t k; | |
175 | for (k=0; k<ngood; k++) { | |
176 | AliTrackReference *ref=(AliTrackReference*)refs->UncheckedAt(k); | |
177 | Int_t lab=ref->Label(), tlab=-1; | |
178 | Float_t ptg=TMath::Sqrt(ref->Px()*ref->Px() + ref->Py()*ref->Py()); | |
03248e6d | 179 | |
4fa1e629 | 180 | if (ptg<ptcutl) continue; |
181 | if (ptg>ptcuth) continue; | |
03248e6d | 182 | |
4fa1e629 | 183 | allselected++; |
f2718ade | 184 | |
4fa1e629 | 185 | hgood->Fill(ptg); |
03248e6d | 186 | |
4fa1e629 | 187 | AliESDtrack *esd=0; |
188 | Int_t cnt=0; | |
4fa1e629 | 189 | for (Int_t i=0; i<nentr; i++) { |
190 | AliESDtrack *t=event->GetTrack(i); | |
191 | UInt_t status=t->GetStatus(); | |
f2718ade | 192 | |
4fa1e629 | 193 | if ((status&AliESDtrack::kITSrefit)==0) continue; |
194 | ||
4fa1e629 | 195 | Int_t lbl=t->GetLabel(); |
196 | if (lab==TMath::Abs(lbl)) { | |
197 | if (cnt==0) {esd=t; tlab=lbl;} | |
198 | cnt++; | |
199 | } | |
200 | } | |
201 | if (cnt==0) { | |
202 | notf[nnotf++]=lab; | |
203 | continue; | |
204 | } else if (cnt>1){ | |
205 | mult[nmult]=lab; | |
206 | numb[nmult]=cnt; nmult++; | |
207 | } | |
208 | ||
f2718ade | 209 | if (lab==tlab) hfound->Fill(ptg); |
210 | else { | |
211 | fake[nfake++]=lab; | |
212 | hfake->Fill(ptg); | |
213 | } | |
f2718ade | 214 | |
49d13e89 | 215 | Double_t alpha=esd->GetAlpha(),xv,par[5]; |
216 | esd->GetExternalParameters(xv,par); | |
217 | Float_t phi=TMath::ASin(par[2]) + alpha; | |
4fa1e629 | 218 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); |
219 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
220 | Float_t lam=TMath::ATan(par[3]); | |
221 | Float_t pt_1=TMath::Abs(par[4]); | |
03248e6d | 222 | |
4fa1e629 | 223 | Float_t phig=TMath::ATan2(ref->Py(),ref->Px()); |
224 | hp->Fill((phi - phig)*1000.); | |
03248e6d | 225 | |
4fa1e629 | 226 | Float_t lamg=TMath::ATan2(ref->Pz(),ptg); |
227 | hl->Fill((lam - lamg)*1000.); | |
03248e6d | 228 | |
c84a5e9e | 229 | Float_t d,z; esd->GetImpactParameters(d,z); |
230 | hmpt->Fill(10000*d); | |
49d13e89 | 231 | hz->Fill(10000*z); |
03248e6d | 232 | |
4fa1e629 | 233 | hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
03248e6d | 234 | |
4fa1e629 | 235 | Float_t mom=1./(pt_1*TMath::Cos(lam)); |
c84a5e9e | 236 | Float_t dedx=esd->GetITSsignal(); |
4fa1e629 | 237 | hep->Fill(mom,dedx,1.); |
f2718ade | 238 | |
4fa1e629 | 239 | Int_t pdg=(Int_t)ref->GetLength(); //this is particle's PDG ! |
f2718ade | 240 | |
4fa1e629 | 241 | if (TMath::Abs(pdg)==211) //pions |
242 | if (mom>0.4 && mom<0.5) he->Fill(dedx,1.); | |
03248e6d | 243 | |
4fa1e629 | 244 | } |
245 | ||
246 | cout<<"\nList of Not found tracks :\n"; | |
247 | for (k=0; k<nnotf; k++){ | |
248 | cout<<notf[k]<<"\t"; | |
249 | if ((k%9)==8) cout<<"\n"; | |
250 | } | |
251 | cout<<"\n\nList of fake tracks :\n"; | |
252 | for (k=0; k<nfake; k++){ | |
253 | cout<<fake[k]<<"\t"; | |
254 | if ((k%9)==8) cout<<"\n"; | |
255 | } | |
256 | cout<<"\n\nList of multiple found tracks :\n"; | |
257 | for (k=0; k<nmult; k++) { | |
258 | cout<<"id. "<<mult[k] | |
259 | <<" found - "<<numb[k]<<"times\n"; | |
260 | } | |
261 | cout<<endl; | |
262 | ||
263 | cout<<"Number of found tracks : "<<nentr<<endl; | |
264 | cout<<"Number of \"good\" tracks : "<<ngood<<endl; | |
f2718ade | 265 | |
4fa1e629 | 266 | refs->Clear(); |
4fa1e629 | 267 | } //***** End of the loop over events |
268 | ||
8b462fd8 | 269 | delete event; |
4514157e | 270 | delete esdTree; |
4fa1e629 | 271 | ef->Close(); |
272 | ||
273 | delete itsTree; | |
274 | refFile->Close(); | |
275 | ||
276 | Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries(); | |
277 | if (ng!=0) cout<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n"; | |
278 | cout<<"Total number selected of \"good\" tracks ="<<allselected<<endl<<endl; | |
279 | cout<<"Total number of found tracks ="<<allfound<<endl; | |
280 | cout<<"Total number of \"good\" tracks ="<<allgood<<endl; | |
281 | cout<<endl; | |
03248e6d | 282 | |
283 | gStyle->SetOptStat(111110); | |
284 | gStyle->SetOptFit(1); | |
285 | ||
286 | TCanvas *c1=new TCanvas("c1","",0,0,700,850); | |
287 | ||
2d343a94 | 288 | Int_t minc=33; |
289 | ||
03248e6d | 290 | TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw(); |
291 | p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); | |
2d343a94 | 292 | hp->SetFillColor(4); hp->SetXTitle("(mrad)"); |
293 | if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd(); | |
03248e6d | 294 | |
295 | TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); | |
296 | p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10); | |
2d343a94 | 297 | hl->SetXTitle("(mrad)"); |
298 | if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd(); | |
03248e6d | 299 | |
300 | TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw(); | |
301 | p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); | |
2d343a94 | 302 | hpt->SetXTitle("(%)"); |
303 | if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd(); | |
03248e6d | 304 | |
305 | TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw(); | |
306 | p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10); | |
2d343a94 | 307 | hmpt->SetXTitle("(micron)"); |
308 | if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus"); | |
309 | hz->Draw("same"); c1->cd(); | |
03248e6d | 310 | |
311 | ||
312 | TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); | |
313 | p5->SetFillColor(41); p5->SetFrameFillColor(10); | |
314 | hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2(); | |
315 | hg->Divide(hfound,hgood,1,1.,"b"); | |
316 | hf->Divide(hfake,hgood,1,1.,"b"); | |
317 | hg->SetMaximum(1.4); | |
318 | hg->SetYTitle("Tracking efficiency"); | |
319 | hg->SetXTitle("Pt (GeV/c)"); | |
320 | hg->Draw(); | |
321 | ||
4fa1e629 | 322 | TLine *line1 = new TLine(0.2,1.0,6.1,1.0); line1->SetLineStyle(4); |
03248e6d | 323 | line1->Draw("same"); |
4fa1e629 | 324 | TLine *line2 = new TLine(0.2,0.9,6.1,0.9); line2->SetLineStyle(4); |
03248e6d | 325 | line2->Draw("same"); |
326 | ||
327 | hf->SetFillColor(1); | |
328 | hf->SetFillStyle(3013); | |
329 | hf->SetLineColor(2); | |
330 | hf->SetLineWidth(2); | |
331 | hf->Draw("histsame"); | |
332 | TText *text = new TText(0.461176,0.248448,"Fake tracks"); | |
333 | text->SetTextSize(0.05); | |
334 | text->Draw(); | |
335 | text = new TText(0.453919,1.11408,"Good tracks"); | |
336 | text->SetTextSize(0.05); | |
337 | text->Draw(); | |
338 | ||
c630aafd | 339 | TCanvas *c2=new TCanvas("c2","",320,32,530,590); |
340 | TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw(); | |
341 | p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); | |
342 | he->SetFillColor(2); he->SetFillStyle(3005); | |
343 | he->SetXTitle("Arbitrary Units"); | |
2d343a94 | 344 | if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd(); |
c630aafd | 345 | |
346 | TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); | |
347 | p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10); | |
348 | hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); | |
349 | hep->Draw(); c1->cd(); | |
2d343a94 | 350 | |
351 | TFile fc("AliITSComparisonV2.root","RECREATE"); | |
352 | c1->Write(); | |
353 | c2->Write(); | |
354 | fc.Close(); | |
355 | ||
4fa1e629 | 356 | gBenchmark->Stop("AliITSComparisonV2"); |
357 | gBenchmark->Show("AliITSComparisonV2"); | |
358 | ||
03248e6d | 359 | return 0; |
360 | } | |
361 | ||
4fa1e629 | 362 | |
363 | ||
364 | Int_t GoodTracksITS(const Char_t *dir) { | |
365 | if (gAlice) { | |
366 | delete gAlice->GetRunLoader(); | |
367 | delete gAlice;//if everything was OK here it is already NULL | |
368 | gAlice = 0x0; | |
c630aafd | 369 | } |
88cb7938 | 370 | |
4fa1e629 | 371 | Char_t fname[100]; |
372 | sprintf(fname,"%s/galice.root",dir); | |
373 | ||
374 | AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON"); | |
375 | if (!rl) { | |
376 | ::Error("GoodTracksITS","Can't start session !"); | |
377 | return 1; | |
c630aafd | 378 | } |
4fa1e629 | 379 | |
88cb7938 | 380 | rl->LoadgAlice(); |
381 | rl->LoadHeader(); | |
4fa1e629 | 382 | rl->LoadKinematics(); |
03248e6d | 383 | |
4fa1e629 | 384 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); |
385 | if (itsl == 0x0) { | |
386 | ::Error("GoodTracksITS","Can not find the ITSLoader"); | |
387 | delete rl; | |
388 | return 4; | |
389 | } | |
c630aafd | 390 | itsl->LoadRecPoints(); |
4fa1e629 | 391 | |
392 | ||
393 | Int_t nev=rl->GetNumberOfEvents(); | |
394 | ::Info("GoodTracksITS","Number of events : %d\n",nev); | |
395 | ||
396 | sprintf(fname,"%s/GoodTracksTPC.root",dir); | |
397 | TFile *tpcFile=TFile::Open(fname); | |
398 | if ((!tpcFile)||(!tpcFile->IsOpen())) { | |
399 | ::Error("GoodTracksITS","Can't open the GoodTracksTPC.root !"); | |
400 | delete rl; | |
401 | return 5; | |
03248e6d | 402 | } |
4fa1e629 | 403 | TClonesArray dum("AliTrackReference",1000), *tpcRefs=&dum; |
404 | TTree *tpcTree=(TTree*)tpcFile->Get("tpcTree"); | |
405 | if (!tpcTree) { | |
406 | ::Error("GoodTracksITS","Can't get the TPC reference tree !"); | |
407 | delete rl; | |
408 | return 6; | |
03248e6d | 409 | } |
4fa1e629 | 410 | TBranch *tpcBranch=tpcTree->GetBranch("TPC"); |
411 | if (!tpcBranch) { | |
412 | ::Error("GoodTracksITS","Can't get the TPC reference branch !"); | |
413 | delete rl; | |
414 | return 7; | |
415 | } | |
416 | tpcBranch->SetAddress(&tpcRefs); | |
417 | ||
418 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
419 | TFile *itsFile=TFile::Open(fname,"recreate"); | |
8c277781 | 420 | TClonesArray dummy2("AliTrackReference",1000), *itsRefs=&dummy2; |
4fa1e629 | 421 | TTree itsTree("itsTree","Tree with info about the reconstructable ITS tracks"); |
422 | itsTree.Branch("ITS",&itsRefs); | |
423 | ||
424 | //******** Loop over generated events | |
425 | for (Int_t e=0; e<nev; e++) { | |
426 | Int_t k; | |
427 | ||
428 | rl->GetEvent(e); itsFile->cd(); | |
429 | ||
430 | Int_t np = rl->GetHeader()->GetNtrack(); | |
431 | cout<<"Event "<<e<<" Number of particles: "<<np<<endl; | |
432 | ||
433 | //******** Fill the "good" masks | |
434 | Int_t *good=new Int_t[np]; for (k=0; k<np; k++) good[k]=0; | |
435 | ||
436 | TTree *cTree=itsl->TreeR(); | |
437 | if (!cTree) { | |
438 | ::Error("GoodTracksITS","Can't get the cluster tree !"); | |
439 | delete rl; | |
440 | return 8; | |
03248e6d | 441 | } |
00a7cc50 | 442 | TBranch *branch=cTree->GetBranch("ITSRecPoints"); |
4fa1e629 | 443 | if (!branch) { |
444 | ::Error("GoodTracksITS","Can't get the clusters branch !"); | |
445 | delete rl; | |
446 | return 9; | |
447 | } | |
00a7cc50 | 448 | TClonesArray dummy("AliITSRecPoint",10000), *clusters=&dummy; |
4fa1e629 | 449 | branch->SetAddress(&clusters); |
450 | ||
451 | Int_t entr=(Int_t)cTree->GetEntries(); | |
452 | for (k=0; k<entr; k++) { | |
453 | cTree->GetEvent(k); | |
454 | Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue; | |
4fa1e629 | 455 | while (ncl--) { |
00a7cc50 | 456 | AliITSRecPoint *pnt=(AliITSRecPoint*)clusters->UncheckedAt(ncl); |
7e9ae194 | 457 | |
458 | Int_t lay=pnt->GetLayer(); | |
459 | if (lay<0 || lay>5) { | |
460 | ::Error("GoodTracksITS","Wrong layer !"); | |
461 | delete rl; | |
462 | return 10; | |
463 | } | |
464 | ||
4fa1e629 | 465 | Int_t l0=pnt->GetLabel(0); |
466 | if (l0>=np) { | |
467 | // cerr<<"Wrong label: "<<l0<<endl; | |
468 | continue; | |
469 | } | |
470 | Int_t l1=pnt->GetLabel(1); | |
471 | if (l1>=np) { | |
472 | // cerr<<"Wrong label: "<<l1<<endl; | |
473 | continue; | |
474 | } | |
475 | Int_t l2=pnt->GetLabel(2); | |
476 | if (l2>=np) { | |
477 | // cerr<<"Wrong label: "<<l2<<endl; | |
478 | continue; | |
479 | } | |
7e9ae194 | 480 | Int_t mask=1<<lay; |
4fa1e629 | 481 | if (l0>=0) good[l0]|=mask; |
482 | if (l1>=0) good[l1]|=mask; | |
483 | if (l2>=0) good[l2]|=mask; | |
484 | } | |
485 | clusters->Clear(); | |
03248e6d | 486 | } |
88cb7938 | 487 | |
03248e6d | 488 | |
4fa1e629 | 489 | //****** select tracks which are "good" enough |
490 | AliStack* stack = rl->Stack(); | |
491 | ||
492 | tpcTree->GetEvent(e); | |
493 | Int_t nk=tpcRefs->GetEntriesFast(); | |
494 | Int_t nt=0; | |
495 | for (k=0; k<nk; k++) { | |
496 | AliTrackReference *tpcRef=(AliTrackReference *)tpcRefs->UncheckedAt(k); | |
497 | Int_t lab=tpcRef->Label(); | |
498 | if (good[lab] != 0x3F) continue; | |
499 | TParticle *p = (TParticle*)stack->Particle(lab); | |
500 | if (p == 0x0) { | |
501 | cerr<<"Can not get particle "<<lab<<endl; | |
502 | continue; | |
503 | } | |
504 | ||
8c277781 | 505 | AliTrackReference *ref=new((*itsRefs)[nt]) AliTrackReference(*tpcRef); |
506 | ref->SetMomentum(p->Px(),p->Py(),p->Pz()); | |
507 | ref->SetPosition(p->Vx(),p->Vy(),p->Vz()); | |
4fa1e629 | 508 | nt++; |
509 | } | |
510 | tpcRefs->Clear(); | |
511 | ||
512 | itsTree.Fill(); | |
513 | itsRefs->Clear(); | |
03248e6d | 514 | |
4fa1e629 | 515 | delete[] good; |
03248e6d | 516 | |
4fa1e629 | 517 | } //*** end of the loop over generated events |
518 | ||
519 | itsTree.Write(); | |
520 | itsFile->Close(); | |
521 | ||
522 | delete tpcTree; | |
523 | tpcFile->Close(); | |
524 | ||
525 | delete rl; | |
526 | return 0; | |
03248e6d | 527 | } |
528 | ||
529 |