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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" |
32 | #include "AliESD.h" | |
33 | ||
03248e6d | 34 | #include "AliITS.h" |
35 | #include "AliITSgeom.h" | |
03248e6d | 36 | #include "AliITSclusterV2.h" |
4fa1e629 | 37 | #include "AliITSLoader.h" |
03248e6d | 38 | #endif |
39 | ||
4fa1e629 | 40 | Int_t GoodTracksITS(const Char_t *dir="."); |
5102bab6 | 41 | |
c630aafd | 42 | extern AliRun *gAlice; |
4fa1e629 | 43 | extern TBenchmark *gBenchmark; |
44 | extern TROOT *gROOT; | |
c630aafd | 45 | |
4fa1e629 | 46 | static Int_t allgood=0; |
47 | static Int_t allselected=0; | |
48 | static Int_t allfound=0; | |
49 | ||
50 | Int_t AliITSComparisonV2 | |
51 | (Float_t ptcutl=0.2, Float_t ptcuth=10., const Char_t *dir=".", Float_t ratio=0.0) { | |
52 | gBenchmark->Start("AliITSComparisonV2"); | |
53 | ||
54 | ::Info("AliITSComparisonV2.C","Doing comparison..."); | |
88cb7938 | 55 | |
4fa1e629 | 56 | |
57 | TH1F *hp=(TH1F*)gROOT->FindObject("hp"); | |
58 | if (!hp) hp=new TH1F("hp","PHI resolution",50,-20.,20.); | |
59 | hp->SetFillColor(4); | |
60 | ||
61 | TH1F *hl=(TH1F*)gROOT->FindObject("hl"); | |
62 | if (!hl) hl=new TH1F("hl","LAMBDA resolution",50,-20,20); | |
63 | hl->SetFillColor(4); | |
64 | ||
65 | TH1F *hpt=(TH1F*)gROOT->FindObject("hpt"); | |
66 | if (!hpt) hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); | |
67 | hpt->SetFillColor(2); | |
68 | ||
69 | TH1F *hmpt=(TH1F*)gROOT->FindObject("hmpt"); | |
70 | if (!hmpt) | |
71 | hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300); | |
72 | hmpt->SetFillColor(6); | |
73 | ||
74 | TH1F *hz=(TH1F*)gROOT->FindObject("hz"); | |
75 | if (!hz) hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300); | |
76 | ||
77 | ||
78 | ||
79 | TH1F *hgood=(TH1F*)gROOT->FindObject("hgood"); | |
80 | if (!hgood) hgood=new TH1F("hgood","Good tracks",30,0.2,6.1); | |
81 | ||
82 | TH1F *hfound=(TH1F*)gROOT->FindObject("hfound"); | |
83 | if (!hfound) hfound=new TH1F("hfound","Found tracks",30,0.2,6.1); | |
84 | ||
85 | TH1F *hfake=(TH1F*)gROOT->FindObject("hfake"); | |
86 | if (!hfake) hfake=new TH1F("hfake","Fake tracks",30,0.2,6.1); | |
87 | ||
88 | TH1F *hg=(TH1F*)gROOT->FindObject("hg"); | |
89 | if (!hg) hg=new TH1F("hg","Efficiency for good tracks",30,0.2,6.1); | |
90 | hg->SetLineColor(4); hg->SetLineWidth(2); | |
91 | ||
92 | TH1F *hf=(TH1F*)gROOT->FindObject("hf"); | |
93 | if (!hf) hf=new TH1F("hf","Efficiency for fake tracks",30,0.2,6.1); | |
94 | hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2); | |
95 | ||
96 | TH1F *he=(TH1F*)gROOT->FindObject("he"); | |
97 | if (!he) | |
98 | he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.); | |
99 | ||
100 | TH2F *hep=(TH2F*)gROOT->FindObject("hep"); | |
101 | if (!hep) hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.); | |
102 | hep->SetMarkerStyle(8); | |
103 | hep->SetMarkerSize(0.4); | |
104 | ||
105 | ||
106 | Char_t fname[100]; | |
107 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
108 | ||
109 | TFile *refFile=TFile::Open(fname,"old"); | |
110 | if (!refFile || !refFile->IsOpen()) { | |
111 | ::Info("AliITSComparisonV2.C","Marking good tracks (will take a while)..."); | |
112 | if (GoodTracksITS(dir)) { | |
113 | ::Error("AliITSComparisonV2.C","Can't generate the reference file !"); | |
114 | return 1; | |
115 | } | |
c630aafd | 116 | } |
4fa1e629 | 117 | refFile=TFile::Open(fname,"old"); |
118 | if (!refFile || !refFile->IsOpen()) { | |
119 | ::Error("AliITSComparisonV2.C","Can't open the reference file !"); | |
120 | return 1; | |
121 | } | |
122 | ||
123 | TTree *itsTree=(TTree*)refFile->Get("itsTree"); | |
124 | if (!itsTree) { | |
125 | ::Error("AliITSComparisonV2.C","Can't get the reference tree !"); | |
126 | return 2; | |
c630aafd | 127 | } |
4fa1e629 | 128 | TBranch *branch=itsTree->GetBranch("ITS"); |
129 | if (!branch) { | |
130 | ::Error("AliITSComparisonV2.C","Can't get the ITS branch !"); | |
131 | return 3; | |
03248e6d | 132 | } |
4fa1e629 | 133 | TClonesArray dummy("AliTrackReference",1000), *refs=&dummy; |
134 | branch->SetAddress(&refs); | |
135 | ||
03248e6d | 136 | |
4fa1e629 | 137 | sprintf(fname,"%s/AliESDs.root",dir); |
138 | TFile *ef=TFile::Open(fname); | |
5102bab6 | 139 | if ((!ef)||(!ef->IsOpen())) { |
4fa1e629 | 140 | sprintf(fname,"%s/AliESDits.root",dir); |
141 | ef=TFile::Open(fname); | |
142 | if ((!ef)||(!ef->IsOpen())) { | |
143 | ::Error("AliITSComparisonV2.C","Can't open AliESDits.root !"); | |
144 | return 4; | |
145 | } | |
5102bab6 | 146 | } |
8b462fd8 | 147 | AliESD* event = new AliESD; |
148 | TTree* esdTree = (TTree*) ef->Get("esdTree"); | |
149 | if (!esdTree) { | |
150 | ::Error("AliITSComparison.C", "no ESD tree found"); | |
151 | return 6; | |
152 | } | |
153 | esdTree->SetBranchAddress("ESD", &event); | |
4fa1e629 | 154 | |
155 | ||
156 | //******* Loop over events ********* | |
157 | Int_t e=0; | |
8b462fd8 | 158 | while (esdTree->GetEvent(e)) { |
4fa1e629 | 159 | cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n"; |
160 | ||
4fa1e629 | 161 | Int_t nentr=event->GetNumberOfTracks(); |
162 | allfound+=nentr; | |
163 | ||
164 | if (itsTree->GetEvent(e++)==0) { | |
165 | cerr<<"No reconstructable tracks !\n"; | |
166 | continue; | |
18856a77 | 167 | } |
18856a77 | 168 | |
4fa1e629 | 169 | Int_t ngood=refs->GetEntriesFast(); |
170 | allgood+=ngood; | |
03248e6d | 171 | |
4fa1e629 | 172 | const Int_t MAX=15000; |
173 | Int_t notf[MAX], nnotf=0; | |
174 | Int_t fake[MAX], nfake=0; | |
175 | Int_t mult[MAX], numb[MAX], nmult=0; | |
176 | Int_t k; | |
177 | for (k=0; k<ngood; k++) { | |
178 | AliTrackReference *ref=(AliTrackReference*)refs->UncheckedAt(k); | |
179 | Int_t lab=ref->Label(), tlab=-1; | |
180 | Float_t ptg=TMath::Sqrt(ref->Px()*ref->Px() + ref->Py()*ref->Py()); | |
03248e6d | 181 | |
4fa1e629 | 182 | if (ptg<ptcutl) continue; |
183 | if (ptg>ptcuth) continue; | |
03248e6d | 184 | |
4fa1e629 | 185 | allselected++; |
f2718ade | 186 | |
4fa1e629 | 187 | hgood->Fill(ptg); |
03248e6d | 188 | |
4fa1e629 | 189 | AliESDtrack *esd=0; |
190 | Int_t cnt=0; | |
4fa1e629 | 191 | for (Int_t i=0; i<nentr; i++) { |
192 | AliESDtrack *t=event->GetTrack(i); | |
193 | UInt_t status=t->GetStatus(); | |
f2718ade | 194 | |
4fa1e629 | 195 | if ((status&AliESDtrack::kITSrefit)==0) continue; |
196 | ||
4fa1e629 | 197 | Int_t lbl=t->GetLabel(); |
198 | if (lab==TMath::Abs(lbl)) { | |
199 | if (cnt==0) {esd=t; tlab=lbl;} | |
200 | cnt++; | |
201 | } | |
202 | } | |
203 | if (cnt==0) { | |
204 | notf[nnotf++]=lab; | |
205 | continue; | |
206 | } else if (cnt>1){ | |
207 | mult[nmult]=lab; | |
208 | numb[nmult]=cnt; nmult++; | |
209 | } | |
210 | ||
211 | if (esd->GetITSFakeRatio()<ratio) tlab = TMath::Abs(tlab); | |
f2718ade | 212 | |
f2718ade | 213 | if (lab==tlab) hfound->Fill(ptg); |
214 | else { | |
215 | fake[nfake++]=lab; | |
216 | hfake->Fill(ptg); | |
217 | } | |
f2718ade | 218 | |
c84a5e9e | 219 | Double_t xv,par[5]; esd->GetExternalParameters(xv,par); |
220 | Float_t phi=TMath::ASin(par[2]) + esd->GetAlpha(); | |
4fa1e629 | 221 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); |
222 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
223 | Float_t lam=TMath::ATan(par[3]); | |
224 | Float_t pt_1=TMath::Abs(par[4]); | |
03248e6d | 225 | |
4fa1e629 | 226 | Float_t phig=TMath::ATan2(ref->Py(),ref->Px()); |
227 | hp->Fill((phi - phig)*1000.); | |
03248e6d | 228 | |
4fa1e629 | 229 | Float_t lamg=TMath::ATan2(ref->Pz(),ptg); |
230 | hl->Fill((lam - lamg)*1000.); | |
03248e6d | 231 | |
c84a5e9e | 232 | Float_t d,z; esd->GetImpactParameters(d,z); |
233 | hmpt->Fill(10000*d); | |
234 | hz->Fill(10000*(z-ref->Z())); | |
03248e6d | 235 | |
4fa1e629 | 236 | hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
03248e6d | 237 | |
4fa1e629 | 238 | Float_t mom=1./(pt_1*TMath::Cos(lam)); |
c84a5e9e | 239 | Float_t dedx=esd->GetITSsignal(); |
4fa1e629 | 240 | hep->Fill(mom,dedx,1.); |
f2718ade | 241 | |
4fa1e629 | 242 | Int_t pdg=(Int_t)ref->GetLength(); //this is particle's PDG ! |
f2718ade | 243 | |
4fa1e629 | 244 | if (TMath::Abs(pdg)==211) //pions |
245 | if (mom>0.4 && mom<0.5) he->Fill(dedx,1.); | |
03248e6d | 246 | |
4fa1e629 | 247 | } |
248 | ||
249 | cout<<"\nList of Not found tracks :\n"; | |
250 | for (k=0; k<nnotf; k++){ | |
251 | cout<<notf[k]<<"\t"; | |
252 | if ((k%9)==8) cout<<"\n"; | |
253 | } | |
254 | cout<<"\n\nList of fake tracks :\n"; | |
255 | for (k=0; k<nfake; k++){ | |
256 | cout<<fake[k]<<"\t"; | |
257 | if ((k%9)==8) cout<<"\n"; | |
258 | } | |
259 | cout<<"\n\nList of multiple found tracks :\n"; | |
260 | for (k=0; k<nmult; k++) { | |
261 | cout<<"id. "<<mult[k] | |
262 | <<" found - "<<numb[k]<<"times\n"; | |
263 | } | |
264 | cout<<endl; | |
265 | ||
266 | cout<<"Number of found tracks : "<<nentr<<endl; | |
267 | cout<<"Number of \"good\" tracks : "<<ngood<<endl; | |
f2718ade | 268 | |
4fa1e629 | 269 | refs->Clear(); |
4fa1e629 | 270 | } //***** End of the loop over events |
271 | ||
8b462fd8 | 272 | delete event; |
4fa1e629 | 273 | ef->Close(); |
274 | ||
275 | delete itsTree; | |
276 | refFile->Close(); | |
277 | ||
278 | Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries(); | |
279 | if (ng!=0) cout<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n"; | |
280 | cout<<"Total number selected of \"good\" tracks ="<<allselected<<endl<<endl; | |
281 | cout<<"Total number of found tracks ="<<allfound<<endl; | |
282 | cout<<"Total number of \"good\" tracks ="<<allgood<<endl; | |
283 | cout<<endl; | |
03248e6d | 284 | |
285 | gStyle->SetOptStat(111110); | |
286 | gStyle->SetOptFit(1); | |
287 | ||
288 | TCanvas *c1=new TCanvas("c1","",0,0,700,850); | |
289 | ||
2d343a94 | 290 | Int_t minc=33; |
291 | ||
03248e6d | 292 | TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw(); |
293 | p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); | |
2d343a94 | 294 | hp->SetFillColor(4); hp->SetXTitle("(mrad)"); |
295 | if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd(); | |
03248e6d | 296 | |
297 | TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); | |
298 | p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10); | |
2d343a94 | 299 | hl->SetXTitle("(mrad)"); |
300 | if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd(); | |
03248e6d | 301 | |
302 | TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw(); | |
303 | p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); | |
2d343a94 | 304 | hpt->SetXTitle("(%)"); |
305 | if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd(); | |
03248e6d | 306 | |
307 | TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw(); | |
308 | p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10); | |
2d343a94 | 309 | hmpt->SetXTitle("(micron)"); |
310 | if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus"); | |
311 | hz->Draw("same"); c1->cd(); | |
03248e6d | 312 | |
313 | ||
314 | TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); | |
315 | p5->SetFillColor(41); p5->SetFrameFillColor(10); | |
316 | hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2(); | |
317 | hg->Divide(hfound,hgood,1,1.,"b"); | |
318 | hf->Divide(hfake,hgood,1,1.,"b"); | |
319 | hg->SetMaximum(1.4); | |
320 | hg->SetYTitle("Tracking efficiency"); | |
321 | hg->SetXTitle("Pt (GeV/c)"); | |
322 | hg->Draw(); | |
323 | ||
4fa1e629 | 324 | TLine *line1 = new TLine(0.2,1.0,6.1,1.0); line1->SetLineStyle(4); |
03248e6d | 325 | line1->Draw("same"); |
4fa1e629 | 326 | TLine *line2 = new TLine(0.2,0.9,6.1,0.9); line2->SetLineStyle(4); |
03248e6d | 327 | line2->Draw("same"); |
328 | ||
329 | hf->SetFillColor(1); | |
330 | hf->SetFillStyle(3013); | |
331 | hf->SetLineColor(2); | |
332 | hf->SetLineWidth(2); | |
333 | hf->Draw("histsame"); | |
334 | TText *text = new TText(0.461176,0.248448,"Fake tracks"); | |
335 | text->SetTextSize(0.05); | |
336 | text->Draw(); | |
337 | text = new TText(0.453919,1.11408,"Good tracks"); | |
338 | text->SetTextSize(0.05); | |
339 | text->Draw(); | |
340 | ||
c630aafd | 341 | TCanvas *c2=new TCanvas("c2","",320,32,530,590); |
342 | TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw(); | |
343 | p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); | |
344 | he->SetFillColor(2); he->SetFillStyle(3005); | |
345 | he->SetXTitle("Arbitrary Units"); | |
2d343a94 | 346 | if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd(); |
c630aafd | 347 | |
348 | TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); | |
349 | p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10); | |
350 | hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); | |
351 | hep->Draw(); c1->cd(); | |
2d343a94 | 352 | |
353 | TFile fc("AliITSComparisonV2.root","RECREATE"); | |
354 | c1->Write(); | |
355 | c2->Write(); | |
356 | fc.Close(); | |
357 | ||
4fa1e629 | 358 | gBenchmark->Stop("AliITSComparisonV2"); |
359 | gBenchmark->Show("AliITSComparisonV2"); | |
360 | ||
03248e6d | 361 | return 0; |
362 | } | |
363 | ||
4fa1e629 | 364 | |
365 | ||
366 | Int_t GoodTracksITS(const Char_t *dir) { | |
367 | if (gAlice) { | |
368 | delete gAlice->GetRunLoader(); | |
369 | delete gAlice;//if everything was OK here it is already NULL | |
370 | gAlice = 0x0; | |
c630aafd | 371 | } |
88cb7938 | 372 | |
4fa1e629 | 373 | Char_t fname[100]; |
374 | sprintf(fname,"%s/galice.root",dir); | |
375 | ||
376 | AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON"); | |
377 | if (!rl) { | |
378 | ::Error("GoodTracksITS","Can't start session !"); | |
379 | return 1; | |
c630aafd | 380 | } |
4fa1e629 | 381 | |
88cb7938 | 382 | rl->LoadgAlice(); |
383 | rl->LoadHeader(); | |
4fa1e629 | 384 | rl->LoadKinematics(); |
03248e6d | 385 | |
88cb7938 | 386 | AliITS *ITS=(AliITS*)rl->GetAliRun()->GetDetector("ITS"); |
03248e6d | 387 | if (!ITS) { |
4fa1e629 | 388 | ::Error("GoodTracksITS","Can't get the ITS !"); |
389 | delete rl; | |
390 | return 2; | |
03248e6d | 391 | } |
392 | AliITSgeom *geom=ITS->GetITSgeom(); | |
393 | if (!geom) { | |
4fa1e629 | 394 | ::Error("GoodTracksITS","Can't get the ITS geometry !"); |
395 | delete rl; | |
396 | return 3; | |
03248e6d | 397 | } |
398 | ||
4fa1e629 | 399 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); |
400 | if (itsl == 0x0) { | |
401 | ::Error("GoodTracksITS","Can not find the ITSLoader"); | |
402 | delete rl; | |
403 | return 4; | |
404 | } | |
c630aafd | 405 | itsl->LoadRecPoints(); |
4fa1e629 | 406 | |
407 | ||
408 | Int_t nev=rl->GetNumberOfEvents(); | |
409 | ::Info("GoodTracksITS","Number of events : %d\n",nev); | |
410 | ||
411 | sprintf(fname,"%s/GoodTracksTPC.root",dir); | |
412 | TFile *tpcFile=TFile::Open(fname); | |
413 | if ((!tpcFile)||(!tpcFile->IsOpen())) { | |
414 | ::Error("GoodTracksITS","Can't open the GoodTracksTPC.root !"); | |
415 | delete rl; | |
416 | return 5; | |
03248e6d | 417 | } |
4fa1e629 | 418 | TClonesArray dum("AliTrackReference",1000), *tpcRefs=&dum; |
419 | TTree *tpcTree=(TTree*)tpcFile->Get("tpcTree"); | |
420 | if (!tpcTree) { | |
421 | ::Error("GoodTracksITS","Can't get the TPC reference tree !"); | |
422 | delete rl; | |
423 | return 6; | |
03248e6d | 424 | } |
4fa1e629 | 425 | TBranch *tpcBranch=tpcTree->GetBranch("TPC"); |
426 | if (!tpcBranch) { | |
427 | ::Error("GoodTracksITS","Can't get the TPC reference branch !"); | |
428 | delete rl; | |
429 | return 7; | |
430 | } | |
431 | tpcBranch->SetAddress(&tpcRefs); | |
432 | ||
433 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
434 | TFile *itsFile=TFile::Open(fname,"recreate"); | |
8c277781 | 435 | TClonesArray dummy2("AliTrackReference",1000), *itsRefs=&dummy2; |
4fa1e629 | 436 | TTree itsTree("itsTree","Tree with info about the reconstructable ITS tracks"); |
437 | itsTree.Branch("ITS",&itsRefs); | |
438 | ||
439 | //******** Loop over generated events | |
440 | for (Int_t e=0; e<nev; e++) { | |
441 | Int_t k; | |
442 | ||
443 | rl->GetEvent(e); itsFile->cd(); | |
444 | ||
445 | Int_t np = rl->GetHeader()->GetNtrack(); | |
446 | cout<<"Event "<<e<<" Number of particles: "<<np<<endl; | |
447 | ||
448 | //******** Fill the "good" masks | |
449 | Int_t *good=new Int_t[np]; for (k=0; k<np; k++) good[k]=0; | |
450 | ||
451 | TTree *cTree=itsl->TreeR(); | |
452 | if (!cTree) { | |
453 | ::Error("GoodTracksITS","Can't get the cluster tree !"); | |
454 | delete rl; | |
455 | return 8; | |
03248e6d | 456 | } |
4fa1e629 | 457 | TBranch *branch=cTree->GetBranch("Clusters"); |
458 | if (!branch) { | |
459 | ::Error("GoodTracksITS","Can't get the clusters branch !"); | |
460 | delete rl; | |
461 | return 9; | |
462 | } | |
463 | TClonesArray dummy("AliITSclusterV2",10000), *clusters=&dummy; | |
464 | branch->SetAddress(&clusters); | |
465 | ||
466 | Int_t entr=(Int_t)cTree->GetEntries(); | |
467 | for (k=0; k<entr; k++) { | |
468 | cTree->GetEvent(k); | |
469 | Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue; | |
470 | Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det); | |
471 | if (lay<1 || lay>6) { | |
472 | ::Error("GoodTracksITS","Wrong layer !"); | |
473 | delete rl; | |
474 | return 10; | |
475 | } | |
476 | while (ncl--) { | |
477 | AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl); | |
478 | Int_t l0=pnt->GetLabel(0); | |
479 | if (l0>=np) { | |
480 | // cerr<<"Wrong label: "<<l0<<endl; | |
481 | continue; | |
482 | } | |
483 | Int_t l1=pnt->GetLabel(1); | |
484 | if (l1>=np) { | |
485 | // cerr<<"Wrong label: "<<l1<<endl; | |
486 | continue; | |
487 | } | |
488 | Int_t l2=pnt->GetLabel(2); | |
489 | if (l2>=np) { | |
490 | // cerr<<"Wrong label: "<<l2<<endl; | |
491 | continue; | |
492 | } | |
493 | Int_t mask=1<<(lay-1); | |
494 | if (l0>=0) good[l0]|=mask; | |
495 | if (l1>=0) good[l1]|=mask; | |
496 | if (l2>=0) good[l2]|=mask; | |
497 | } | |
498 | clusters->Clear(); | |
03248e6d | 499 | } |
88cb7938 | 500 | |
03248e6d | 501 | |
4fa1e629 | 502 | //****** select tracks which are "good" enough |
503 | AliStack* stack = rl->Stack(); | |
504 | ||
505 | tpcTree->GetEvent(e); | |
506 | Int_t nk=tpcRefs->GetEntriesFast(); | |
507 | Int_t nt=0; | |
508 | for (k=0; k<nk; k++) { | |
509 | AliTrackReference *tpcRef=(AliTrackReference *)tpcRefs->UncheckedAt(k); | |
510 | Int_t lab=tpcRef->Label(); | |
511 | if (good[lab] != 0x3F) continue; | |
512 | TParticle *p = (TParticle*)stack->Particle(lab); | |
513 | if (p == 0x0) { | |
514 | cerr<<"Can not get particle "<<lab<<endl; | |
515 | continue; | |
516 | } | |
517 | ||
8c277781 | 518 | AliTrackReference *ref=new((*itsRefs)[nt]) AliTrackReference(*tpcRef); |
519 | ref->SetMomentum(p->Px(),p->Py(),p->Pz()); | |
520 | ref->SetPosition(p->Vx(),p->Vy(),p->Vz()); | |
4fa1e629 | 521 | nt++; |
522 | } | |
523 | tpcRefs->Clear(); | |
524 | ||
525 | itsTree.Fill(); | |
526 | itsRefs->Clear(); | |
03248e6d | 527 | |
4fa1e629 | 528 | delete[] good; |
03248e6d | 529 | |
4fa1e629 | 530 | } //*** end of the loop over generated events |
531 | ||
532 | itsTree.Write(); | |
533 | itsFile->Close(); | |
534 | ||
535 | delete tpcTree; | |
536 | tpcFile->Close(); | |
537 | ||
538 | delete rl; | |
539 | return 0; | |
03248e6d | 540 | } |
541 | ||
542 |