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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> | |
24 | #include <TKey.h> | |
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 "AliITStrackV2.h" |
37 | #include "AliITSclusterV2.h" | |
4fa1e629 | 38 | #include "AliITSLoader.h" |
03248e6d | 39 | #endif |
40 | ||
4fa1e629 | 41 | Int_t GoodTracksITS(const Char_t *dir="."); |
5102bab6 | 42 | |
c630aafd | 43 | extern AliRun *gAlice; |
4fa1e629 | 44 | extern TBenchmark *gBenchmark; |
45 | extern TROOT *gROOT; | |
c630aafd | 46 | |
4fa1e629 | 47 | static Int_t allgood=0; |
48 | static Int_t allselected=0; | |
49 | static Int_t allfound=0; | |
50 | ||
51 | Int_t AliITSComparisonV2 | |
52 | (Float_t ptcutl=0.2, Float_t ptcuth=10., const Char_t *dir=".", Float_t ratio=0.0) { | |
53 | gBenchmark->Start("AliITSComparisonV2"); | |
54 | ||
55 | ::Info("AliITSComparisonV2.C","Doing comparison..."); | |
88cb7938 | 56 | |
4fa1e629 | 57 | |
58 | TH1F *hp=(TH1F*)gROOT->FindObject("hp"); | |
59 | if (!hp) hp=new TH1F("hp","PHI resolution",50,-20.,20.); | |
60 | hp->SetFillColor(4); | |
61 | ||
62 | TH1F *hl=(TH1F*)gROOT->FindObject("hl"); | |
63 | if (!hl) hl=new TH1F("hl","LAMBDA resolution",50,-20,20); | |
64 | hl->SetFillColor(4); | |
65 | ||
66 | TH1F *hpt=(TH1F*)gROOT->FindObject("hpt"); | |
67 | if (!hpt) hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); | |
68 | hpt->SetFillColor(2); | |
69 | ||
70 | TH1F *hmpt=(TH1F*)gROOT->FindObject("hmpt"); | |
71 | if (!hmpt) | |
72 | hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300); | |
73 | hmpt->SetFillColor(6); | |
74 | ||
75 | TH1F *hz=(TH1F*)gROOT->FindObject("hz"); | |
76 | if (!hz) hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300); | |
77 | ||
78 | ||
79 | ||
80 | TH1F *hgood=(TH1F*)gROOT->FindObject("hgood"); | |
81 | if (!hgood) hgood=new TH1F("hgood","Good tracks",30,0.2,6.1); | |
82 | ||
83 | TH1F *hfound=(TH1F*)gROOT->FindObject("hfound"); | |
84 | if (!hfound) hfound=new TH1F("hfound","Found tracks",30,0.2,6.1); | |
85 | ||
86 | TH1F *hfake=(TH1F*)gROOT->FindObject("hfake"); | |
87 | if (!hfake) hfake=new TH1F("hfake","Fake tracks",30,0.2,6.1); | |
88 | ||
89 | TH1F *hg=(TH1F*)gROOT->FindObject("hg"); | |
90 | if (!hg) hg=new TH1F("hg","Efficiency for good tracks",30,0.2,6.1); | |
91 | hg->SetLineColor(4); hg->SetLineWidth(2); | |
92 | ||
93 | TH1F *hf=(TH1F*)gROOT->FindObject("hf"); | |
94 | if (!hf) hf=new TH1F("hf","Efficiency for fake tracks",30,0.2,6.1); | |
95 | hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2); | |
96 | ||
97 | TH1F *he=(TH1F*)gROOT->FindObject("he"); | |
98 | if (!he) | |
99 | he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.); | |
100 | ||
101 | TH2F *hep=(TH2F*)gROOT->FindObject("hep"); | |
102 | if (!hep) hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.); | |
103 | hep->SetMarkerStyle(8); | |
104 | hep->SetMarkerSize(0.4); | |
105 | ||
106 | ||
107 | Char_t fname[100]; | |
108 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
109 | ||
110 | TFile *refFile=TFile::Open(fname,"old"); | |
111 | if (!refFile || !refFile->IsOpen()) { | |
112 | ::Info("AliITSComparisonV2.C","Marking good tracks (will take a while)..."); | |
113 | if (GoodTracksITS(dir)) { | |
114 | ::Error("AliITSComparisonV2.C","Can't generate the reference file !"); | |
115 | return 1; | |
116 | } | |
c630aafd | 117 | } |
4fa1e629 | 118 | refFile=TFile::Open(fname,"old"); |
119 | if (!refFile || !refFile->IsOpen()) { | |
120 | ::Error("AliITSComparisonV2.C","Can't open the reference file !"); | |
121 | return 1; | |
122 | } | |
123 | ||
124 | TTree *itsTree=(TTree*)refFile->Get("itsTree"); | |
125 | if (!itsTree) { | |
126 | ::Error("AliITSComparisonV2.C","Can't get the reference tree !"); | |
127 | return 2; | |
c630aafd | 128 | } |
4fa1e629 | 129 | TBranch *branch=itsTree->GetBranch("ITS"); |
130 | if (!branch) { | |
131 | ::Error("AliITSComparisonV2.C","Can't get the ITS branch !"); | |
132 | return 3; | |
03248e6d | 133 | } |
4fa1e629 | 134 | TClonesArray dummy("AliTrackReference",1000), *refs=&dummy; |
135 | branch->SetAddress(&refs); | |
136 | ||
03248e6d | 137 | |
4fa1e629 | 138 | sprintf(fname,"%s/AliESDs.root",dir); |
139 | TFile *ef=TFile::Open(fname); | |
5102bab6 | 140 | if ((!ef)||(!ef->IsOpen())) { |
4fa1e629 | 141 | sprintf(fname,"%s/AliESDits.root",dir); |
142 | ef=TFile::Open(fname); | |
143 | if ((!ef)||(!ef->IsOpen())) { | |
144 | ::Error("AliITSComparisonV2.C","Can't open AliESDits.root !"); | |
145 | return 4; | |
146 | } | |
5102bab6 | 147 | } |
148 | TKey *key=0; | |
149 | TIter next(ef->GetListOfKeys()); | |
4fa1e629 | 150 | |
151 | ||
152 | ||
153 | //******* Loop over events ********* | |
154 | Int_t e=0; | |
155 | while ((key=(TKey*)next())!=0) { | |
156 | cout<<endl<<endl<<"********* Processing event number: "<<e<<"*******\n"; | |
157 | ||
5102bab6 | 158 | AliESD *event=(AliESD*)key->ReadObj(); |
4fa1e629 | 159 | |
160 | Float_t field=event->GetMagneticField(); | |
161 | AliKalmanTrack::SetConvConst(1000/0.299792458/field); | |
162 | ||
163 | Int_t nentr=event->GetNumberOfTracks(); | |
164 | allfound+=nentr; | |
165 | ||
166 | if (itsTree->GetEvent(e++)==0) { | |
167 | cerr<<"No reconstructable tracks !\n"; | |
168 | continue; | |
18856a77 | 169 | } |
18856a77 | 170 | |
4fa1e629 | 171 | Int_t ngood=refs->GetEntriesFast(); |
172 | allgood+=ngood; | |
03248e6d | 173 | |
4fa1e629 | 174 | const Int_t MAX=15000; |
175 | Int_t notf[MAX], nnotf=0; | |
176 | Int_t fake[MAX], nfake=0; | |
177 | Int_t mult[MAX], numb[MAX], nmult=0; | |
178 | Int_t k; | |
179 | for (k=0; k<ngood; k++) { | |
180 | AliTrackReference *ref=(AliTrackReference*)refs->UncheckedAt(k); | |
181 | Int_t lab=ref->Label(), tlab=-1; | |
182 | Float_t ptg=TMath::Sqrt(ref->Px()*ref->Px() + ref->Py()*ref->Py()); | |
03248e6d | 183 | |
4fa1e629 | 184 | if (ptg<ptcutl) continue; |
185 | if (ptg>ptcuth) continue; | |
03248e6d | 186 | |
4fa1e629 | 187 | allselected++; |
f2718ade | 188 | |
4fa1e629 | 189 | hgood->Fill(ptg); |
03248e6d | 190 | |
4fa1e629 | 191 | AliESDtrack *esd=0; |
192 | Int_t cnt=0; | |
193 | Int_t pipe=0; | |
194 | for (Int_t i=0; i<nentr; i++) { | |
195 | AliESDtrack *t=event->GetTrack(i); | |
196 | UInt_t status=t->GetStatus(); | |
197 | UInt_t flags=AliESDtrack::kTPCin|AliESDtrack::kITSin; | |
f2718ade | 198 | |
4fa1e629 | 199 | if ((status&AliESDtrack::kITSrefit)==0) continue; |
200 | ||
201 | if ((status&flags)==status) pipe=1; | |
202 | ||
203 | Int_t lbl=t->GetLabel(); | |
204 | if (lab==TMath::Abs(lbl)) { | |
205 | if (cnt==0) {esd=t; tlab=lbl;} | |
206 | cnt++; | |
207 | } | |
208 | } | |
209 | if (cnt==0) { | |
210 | notf[nnotf++]=lab; | |
211 | continue; | |
212 | } else if (cnt>1){ | |
213 | mult[nmult]=lab; | |
214 | numb[nmult]=cnt; nmult++; | |
215 | } | |
216 | ||
217 | if (esd->GetITSFakeRatio()<ratio) tlab = TMath::Abs(tlab); | |
f2718ade | 218 | |
f2718ade | 219 | if (lab==tlab) hfound->Fill(ptg); |
220 | else { | |
221 | fake[nfake++]=lab; | |
222 | hfake->Fill(ptg); | |
223 | } | |
f2718ade | 224 | |
4fa1e629 | 225 | AliITStrackV2 track(*esd); |
226 | if (pipe!=0) { | |
227 | track.PropagateTo(3.,0.0028,65.19); | |
228 | track.PropagateToVertex(); // This is not "exactly" the vertex | |
229 | } | |
03248e6d | 230 | |
4fa1e629 | 231 | Double_t xv,par[5]; track.GetExternalParameters(xv,par); |
232 | Float_t phi=TMath::ASin(par[2]) + track.GetAlpha(); | |
233 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
234 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
235 | Float_t lam=TMath::ATan(par[3]); | |
236 | Float_t pt_1=TMath::Abs(par[4]); | |
03248e6d | 237 | |
4fa1e629 | 238 | Float_t phig=TMath::ATan2(ref->Py(),ref->Px()); |
239 | hp->Fill((phi - phig)*1000.); | |
03248e6d | 240 | |
4fa1e629 | 241 | Float_t lamg=TMath::ATan2(ref->Pz(),ptg); |
242 | hl->Fill((lam - lamg)*1000.); | |
03248e6d | 243 | |
4fa1e629 | 244 | Double_t d=10000*track.GetD(ref->X(),ref->Y()); |
245 | hmpt->Fill(d); | |
03248e6d | 246 | |
4fa1e629 | 247 | Double_t z=10000*(track.GetZ()-ref->Z()); |
248 | hz->Fill(z); | |
03248e6d | 249 | |
4fa1e629 | 250 | hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
03248e6d | 251 | |
4fa1e629 | 252 | Float_t mom=1./(pt_1*TMath::Cos(lam)); |
253 | Float_t dedx=track.GetdEdx(); | |
254 | hep->Fill(mom,dedx,1.); | |
f2718ade | 255 | |
4fa1e629 | 256 | Int_t pdg=(Int_t)ref->GetLength(); //this is particle's PDG ! |
f2718ade | 257 | |
4fa1e629 | 258 | if (TMath::Abs(pdg)==211) //pions |
259 | if (mom>0.4 && mom<0.5) he->Fill(dedx,1.); | |
03248e6d | 260 | |
4fa1e629 | 261 | } |
262 | ||
263 | cout<<"\nList of Not found tracks :\n"; | |
264 | for (k=0; k<nnotf; k++){ | |
265 | cout<<notf[k]<<"\t"; | |
266 | if ((k%9)==8) cout<<"\n"; | |
267 | } | |
268 | cout<<"\n\nList of fake tracks :\n"; | |
269 | for (k=0; k<nfake; k++){ | |
270 | cout<<fake[k]<<"\t"; | |
271 | if ((k%9)==8) cout<<"\n"; | |
272 | } | |
273 | cout<<"\n\nList of multiple found tracks :\n"; | |
274 | for (k=0; k<nmult; k++) { | |
275 | cout<<"id. "<<mult[k] | |
276 | <<" found - "<<numb[k]<<"times\n"; | |
277 | } | |
278 | cout<<endl; | |
279 | ||
280 | cout<<"Number of found tracks : "<<nentr<<endl; | |
281 | cout<<"Number of \"good\" tracks : "<<ngood<<endl; | |
f2718ade | 282 | |
4fa1e629 | 283 | refs->Clear(); |
284 | delete event; | |
285 | } //***** End of the loop over events | |
286 | ||
287 | ef->Close(); | |
288 | ||
289 | delete itsTree; | |
290 | refFile->Close(); | |
291 | ||
292 | Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries(); | |
293 | if (ng!=0) cout<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n"; | |
294 | cout<<"Total number selected of \"good\" tracks ="<<allselected<<endl<<endl; | |
295 | cout<<"Total number of found tracks ="<<allfound<<endl; | |
296 | cout<<"Total number of \"good\" tracks ="<<allgood<<endl; | |
297 | cout<<endl; | |
03248e6d | 298 | |
299 | gStyle->SetOptStat(111110); | |
300 | gStyle->SetOptFit(1); | |
301 | ||
302 | TCanvas *c1=new TCanvas("c1","",0,0,700,850); | |
303 | ||
2d343a94 | 304 | Int_t minc=33; |
305 | ||
03248e6d | 306 | TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw(); |
307 | p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); | |
2d343a94 | 308 | hp->SetFillColor(4); hp->SetXTitle("(mrad)"); |
309 | if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd(); | |
03248e6d | 310 | |
311 | TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); | |
312 | p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10); | |
2d343a94 | 313 | hl->SetXTitle("(mrad)"); |
314 | if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd(); | |
03248e6d | 315 | |
316 | TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw(); | |
317 | p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); | |
2d343a94 | 318 | hpt->SetXTitle("(%)"); |
319 | if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd(); | |
03248e6d | 320 | |
321 | TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw(); | |
322 | p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10); | |
2d343a94 | 323 | hmpt->SetXTitle("(micron)"); |
324 | if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus"); | |
325 | hz->Draw("same"); c1->cd(); | |
03248e6d | 326 | |
327 | ||
328 | TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); | |
329 | p5->SetFillColor(41); p5->SetFrameFillColor(10); | |
330 | hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2(); | |
331 | hg->Divide(hfound,hgood,1,1.,"b"); | |
332 | hf->Divide(hfake,hgood,1,1.,"b"); | |
333 | hg->SetMaximum(1.4); | |
334 | hg->SetYTitle("Tracking efficiency"); | |
335 | hg->SetXTitle("Pt (GeV/c)"); | |
336 | hg->Draw(); | |
337 | ||
4fa1e629 | 338 | TLine *line1 = new TLine(0.2,1.0,6.1,1.0); line1->SetLineStyle(4); |
03248e6d | 339 | line1->Draw("same"); |
4fa1e629 | 340 | TLine *line2 = new TLine(0.2,0.9,6.1,0.9); line2->SetLineStyle(4); |
03248e6d | 341 | line2->Draw("same"); |
342 | ||
343 | hf->SetFillColor(1); | |
344 | hf->SetFillStyle(3013); | |
345 | hf->SetLineColor(2); | |
346 | hf->SetLineWidth(2); | |
347 | hf->Draw("histsame"); | |
348 | TText *text = new TText(0.461176,0.248448,"Fake tracks"); | |
349 | text->SetTextSize(0.05); | |
350 | text->Draw(); | |
351 | text = new TText(0.453919,1.11408,"Good tracks"); | |
352 | text->SetTextSize(0.05); | |
353 | text->Draw(); | |
354 | ||
c630aafd | 355 | TCanvas *c2=new TCanvas("c2","",320,32,530,590); |
356 | TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw(); | |
357 | p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); | |
358 | he->SetFillColor(2); he->SetFillStyle(3005); | |
359 | he->SetXTitle("Arbitrary Units"); | |
2d343a94 | 360 | if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd(); |
c630aafd | 361 | |
362 | TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); | |
363 | p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10); | |
364 | hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); | |
365 | hep->Draw(); c1->cd(); | |
2d343a94 | 366 | |
367 | TFile fc("AliITSComparisonV2.root","RECREATE"); | |
368 | c1->Write(); | |
369 | c2->Write(); | |
370 | fc.Close(); | |
371 | ||
4fa1e629 | 372 | gBenchmark->Stop("AliITSComparisonV2"); |
373 | gBenchmark->Show("AliITSComparisonV2"); | |
374 | ||
03248e6d | 375 | return 0; |
376 | } | |
377 | ||
4fa1e629 | 378 | |
379 | ||
380 | Int_t GoodTracksITS(const Char_t *dir) { | |
381 | if (gAlice) { | |
382 | delete gAlice->GetRunLoader(); | |
383 | delete gAlice;//if everything was OK here it is already NULL | |
384 | gAlice = 0x0; | |
c630aafd | 385 | } |
88cb7938 | 386 | |
4fa1e629 | 387 | Char_t fname[100]; |
388 | sprintf(fname,"%s/galice.root",dir); | |
389 | ||
390 | AliRunLoader *rl = AliRunLoader::Open(fname,"COMPARISON"); | |
391 | if (!rl) { | |
392 | ::Error("GoodTracksITS","Can't start session !"); | |
393 | return 1; | |
c630aafd | 394 | } |
4fa1e629 | 395 | |
88cb7938 | 396 | rl->LoadgAlice(); |
397 | rl->LoadHeader(); | |
4fa1e629 | 398 | rl->LoadKinematics(); |
03248e6d | 399 | |
88cb7938 | 400 | AliITS *ITS=(AliITS*)rl->GetAliRun()->GetDetector("ITS"); |
03248e6d | 401 | if (!ITS) { |
4fa1e629 | 402 | ::Error("GoodTracksITS","Can't get the ITS !"); |
403 | delete rl; | |
404 | return 2; | |
03248e6d | 405 | } |
406 | AliITSgeom *geom=ITS->GetITSgeom(); | |
407 | if (!geom) { | |
4fa1e629 | 408 | ::Error("GoodTracksITS","Can't get the ITS geometry !"); |
409 | delete rl; | |
410 | return 3; | |
03248e6d | 411 | } |
412 | ||
4fa1e629 | 413 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); |
414 | if (itsl == 0x0) { | |
415 | ::Error("GoodTracksITS","Can not find the ITSLoader"); | |
416 | delete rl; | |
417 | return 4; | |
418 | } | |
c630aafd | 419 | itsl->LoadRecPoints(); |
4fa1e629 | 420 | |
421 | ||
422 | Int_t nev=rl->GetNumberOfEvents(); | |
423 | ::Info("GoodTracksITS","Number of events : %d\n",nev); | |
424 | ||
425 | sprintf(fname,"%s/GoodTracksTPC.root",dir); | |
426 | TFile *tpcFile=TFile::Open(fname); | |
427 | if ((!tpcFile)||(!tpcFile->IsOpen())) { | |
428 | ::Error("GoodTracksITS","Can't open the GoodTracksTPC.root !"); | |
429 | delete rl; | |
430 | return 5; | |
03248e6d | 431 | } |
4fa1e629 | 432 | TClonesArray dum("AliTrackReference",1000), *tpcRefs=&dum; |
433 | TTree *tpcTree=(TTree*)tpcFile->Get("tpcTree"); | |
434 | if (!tpcTree) { | |
435 | ::Error("GoodTracksITS","Can't get the TPC reference tree !"); | |
436 | delete rl; | |
437 | return 6; | |
03248e6d | 438 | } |
4fa1e629 | 439 | TBranch *tpcBranch=tpcTree->GetBranch("TPC"); |
440 | if (!tpcBranch) { | |
441 | ::Error("GoodTracksITS","Can't get the TPC reference branch !"); | |
442 | delete rl; | |
443 | return 7; | |
444 | } | |
445 | tpcBranch->SetAddress(&tpcRefs); | |
446 | ||
447 | sprintf(fname,"%s/GoodTracksITS.root",dir); | |
448 | TFile *itsFile=TFile::Open(fname,"recreate"); | |
449 | TClonesArray dummy("AliTrackReference",1000), *itsRefs=&dummy; | |
450 | TTree itsTree("itsTree","Tree with info about the reconstructable ITS tracks"); | |
451 | itsTree.Branch("ITS",&itsRefs); | |
452 | ||
453 | //******** Loop over generated events | |
454 | for (Int_t e=0; e<nev; e++) { | |
455 | Int_t k; | |
456 | ||
457 | rl->GetEvent(e); itsFile->cd(); | |
458 | ||
459 | Int_t np = rl->GetHeader()->GetNtrack(); | |
460 | cout<<"Event "<<e<<" Number of particles: "<<np<<endl; | |
461 | ||
462 | //******** Fill the "good" masks | |
463 | Int_t *good=new Int_t[np]; for (k=0; k<np; k++) good[k]=0; | |
464 | ||
465 | TTree *cTree=itsl->TreeR(); | |
466 | if (!cTree) { | |
467 | ::Error("GoodTracksITS","Can't get the cluster tree !"); | |
468 | delete rl; | |
469 | return 8; | |
03248e6d | 470 | } |
4fa1e629 | 471 | TBranch *branch=cTree->GetBranch("Clusters"); |
472 | if (!branch) { | |
473 | ::Error("GoodTracksITS","Can't get the clusters branch !"); | |
474 | delete rl; | |
475 | return 9; | |
476 | } | |
477 | TClonesArray dummy("AliITSclusterV2",10000), *clusters=&dummy; | |
478 | branch->SetAddress(&clusters); | |
479 | ||
480 | Int_t entr=(Int_t)cTree->GetEntries(); | |
481 | for (k=0; k<entr; k++) { | |
482 | cTree->GetEvent(k); | |
483 | Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue; | |
484 | Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det); | |
485 | if (lay<1 || lay>6) { | |
486 | ::Error("GoodTracksITS","Wrong layer !"); | |
487 | delete rl; | |
488 | return 10; | |
489 | } | |
490 | while (ncl--) { | |
491 | AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl); | |
492 | Int_t l0=pnt->GetLabel(0); | |
493 | if (l0>=np) { | |
494 | // cerr<<"Wrong label: "<<l0<<endl; | |
495 | continue; | |
496 | } | |
497 | Int_t l1=pnt->GetLabel(1); | |
498 | if (l1>=np) { | |
499 | // cerr<<"Wrong label: "<<l1<<endl; | |
500 | continue; | |
501 | } | |
502 | Int_t l2=pnt->GetLabel(2); | |
503 | if (l2>=np) { | |
504 | // cerr<<"Wrong label: "<<l2<<endl; | |
505 | continue; | |
506 | } | |
507 | Int_t mask=1<<(lay-1); | |
508 | if (l0>=0) good[l0]|=mask; | |
509 | if (l1>=0) good[l1]|=mask; | |
510 | if (l2>=0) good[l2]|=mask; | |
511 | } | |
512 | clusters->Clear(); | |
03248e6d | 513 | } |
88cb7938 | 514 | |
03248e6d | 515 | |
4fa1e629 | 516 | //****** select tracks which are "good" enough |
517 | AliStack* stack = rl->Stack(); | |
518 | ||
519 | tpcTree->GetEvent(e); | |
520 | Int_t nk=tpcRefs->GetEntriesFast(); | |
521 | Int_t nt=0; | |
522 | for (k=0; k<nk; k++) { | |
523 | AliTrackReference *tpcRef=(AliTrackReference *)tpcRefs->UncheckedAt(k); | |
524 | Int_t lab=tpcRef->Label(); | |
525 | if (good[lab] != 0x3F) continue; | |
526 | TParticle *p = (TParticle*)stack->Particle(lab); | |
527 | if (p == 0x0) { | |
528 | cerr<<"Can not get particle "<<lab<<endl; | |
529 | continue; | |
530 | } | |
531 | ||
532 | AliTrackReference *ref=new((*itsRefs)[nt]) AliTrackReference(*tpcRef); | |
533 | ref->SetMomentum(p->Px(),p->Py(),p->Pz()); | |
534 | ref->SetPosition(p->Vx(),p->Vy(),p->Vz()); | |
535 | nt++; | |
536 | } | |
537 | tpcRefs->Clear(); | |
538 | ||
539 | itsTree.Fill(); | |
540 | itsRefs->Clear(); | |
03248e6d | 541 | |
4fa1e629 | 542 | delete[] good; |
03248e6d | 543 | |
4fa1e629 | 544 | } //*** end of the loop over generated events |
545 | ||
546 | itsTree.Write(); | |
547 | itsFile->Close(); | |
548 | ||
549 | delete tpcTree; | |
550 | tpcFile->Close(); | |
551 | ||
552 | delete rl; | |
553 | return 0; | |
03248e6d | 554 | } |
555 | ||
556 |