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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__) | |
ddae8318 | 12 | #include <Riostream.h> |
03248e6d | 13 | #include <fstream.h> |
14 | ||
15 | #include "AliRun.h" | |
c630aafd | 16 | #include "AliHeader.h" |
17 | #include "AliStack.h" | |
88cb7938 | 18 | #include "AliRunLoader.h" |
19 | #include "AliLoader.h" | |
20 | #include "AliITSLoader.h" | |
03248e6d | 21 | #include "AliITS.h" |
22 | #include "AliITSgeom.h" | |
23 | #include "AliITStrackerV2.h" | |
24 | #include "AliITStrackV2.h" | |
25 | #include "AliITSclusterV2.h" | |
88cb7938 | 26 | #include "AliMagF.h" |
5102bab6 | 27 | #include "AliESD.h" |
03248e6d | 28 | |
29 | #include "TFile.h" | |
5102bab6 | 30 | #include "TKey.h" |
03248e6d | 31 | #include "TTree.h" |
32 | #include "TH1.h" | |
f2718ade | 33 | #include "TH2.h" |
03248e6d | 34 | #include "TObjArray.h" |
35 | #include "TStyle.h" | |
36 | #include "TCanvas.h" | |
37 | #include "TLine.h" | |
38 | #include "TText.h" | |
39 | #include "TParticle.h" | |
40 | #endif | |
41 | ||
42 | struct GoodTrackITS { | |
43 | Int_t lab; | |
44 | Int_t code; | |
45 | Float_t px,py,pz; | |
46 | Float_t x,y,z; | |
47 | }; | |
48 | ||
5102bab6 | 49 | Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, |
50 | const char* evfoldname = AliConfig::fgkDefaultEventFolderName); | |
51 | ||
c630aafd | 52 | extern AliRun *gAlice; |
53 | ||
54 | Int_t AliITSComparisonV2() { | |
03248e6d | 55 | cerr<<"Doing comparison...\n"; |
c630aafd | 56 | if (gAlice) { |
88cb7938 | 57 | delete gAlice->GetRunLoader(); |
58 | delete gAlice; | |
59 | gAlice=0; | |
c630aafd | 60 | } |
88cb7938 | 61 | |
62 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); | |
c630aafd | 63 | if (!rl) { |
88cb7938 | 64 | cerr<<"AliITSComparisonV2.C :Can't start sesion !\n"; |
65 | return 1; | |
c630aafd | 66 | } |
88cb7938 | 67 | rl->LoadgAlice(); |
18856a77 | 68 | if (rl->GetAliRun()) |
5102bab6 | 69 | AliKalmanTrack::SetConvConst( |
70 | 1000/0.299792458/rl->GetAliRun()->Field()->SolenoidField() | |
71 | ); | |
c630aafd | 72 | else { |
73 | cerr<<"AliITSComparisonV2.C :Can't get AliRun !\n"; | |
74 | return 1; | |
75 | } | |
18856a77 | 76 | //rl->UnloadgAlice(); |
88cb7938 | 77 | |
03248e6d | 78 | |
03248e6d | 79 | /* Generate a list of "good" tracks */ |
5102bab6 | 80 | const Int_t MAX=15000; |
03248e6d | 81 | GoodTrackITS gt[MAX]; |
82 | Int_t ngood=0; | |
83 | ifstream in("good_tracks_its"); | |
84 | if (in) { | |
85 | cerr<<"Reading good tracks...\n"; | |
86 | while (in>>gt[ngood].lab>>gt[ngood].code>> | |
87 | gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>> | |
88 | gt[ngood].x >>gt[ngood].y >>gt[ngood].z) { | |
89 | ngood++; | |
90 | cerr<<ngood<<'\r'; | |
91 | if (ngood==MAX) { | |
92 | cerr<<"Too many good tracks !\n"; | |
93 | break; | |
94 | } | |
95 | } | |
96 | if (!in.eof()) cerr<<"Read error (good_tracks_its) !\n"; | |
97 | } else { | |
98 | cerr<<"Marking good tracks (this will take a while)...\n"; | |
88cb7938 | 99 | ngood=good_tracks_its(gt,MAX,AliConfig::fgkDefaultEventFolderName); |
03248e6d | 100 | ofstream out("good_tracks_its"); |
101 | if (out) { | |
102 | for (Int_t ngd=0; ngd<ngood; ngd++) | |
103 | out<<gt[ngd].lab<<' '<<gt[ngd].code<<' ' | |
104 | <<gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' ' | |
105 | <<gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl; | |
106 | } else cerr<<"Can not open file (good_tracks_its) !\n"; | |
107 | out.close(); | |
108 | } | |
03248e6d | 109 | |
5102bab6 | 110 | TObjArray tarray(2000); |
111 | { /*Load tracks*/ | |
112 | TFile *ef=TFile::Open("AliESDits.root"); | |
113 | if ((!ef)||(!ef->IsOpen())) { | |
114 | ::Fatal("AliITSComparisonV2.C","Can't open AliESDits.root !"); | |
115 | } | |
116 | TKey *key=0; | |
117 | TIter next(ef->GetListOfKeys()); | |
118 | if ((key=(TKey*)next())!=0) { | |
119 | AliESD *event=(AliESD*)key->ReadObj(); | |
120 | Int_t ntrk=event->GetNumberOfTracks(); | |
121 | for (Int_t i=0; i<ntrk; i++) { | |
122 | AliESDtrack *t=event->GetTrack(i); | |
123 | if ((t->GetStatus()&AliESDtrack::kITSin)==0) continue; | |
124 | AliITStrackV2 *iotrack=new AliITStrackV2(*t); | |
18856a77 | 125 | tarray.AddLast(iotrack); |
126 | } | |
5102bab6 | 127 | delete event; |
128 | } | |
129 | ef->Close(); | |
18856a77 | 130 | } |
5102bab6 | 131 | Int_t nentr=tarray.GetEntriesFast(); |
18856a77 | 132 | |
03248e6d | 133 | TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4); |
134 | TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4); | |
135 | TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); | |
136 | hpt->SetFillColor(2); | |
137 | TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300); | |
138 | hmpt->SetFillColor(6); | |
139 | TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300); | |
03248e6d | 140 | |
141 | AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(0); | |
142 | Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst()); | |
143 | Double_t pmax=6.0+pmin; | |
144 | ||
145 | TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax); | |
146 | TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax); | |
147 | TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax); | |
148 | TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks | |
149 | hg->SetLineColor(4); hg->SetLineWidth(2); | |
150 | TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax); | |
151 | hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2); | |
152 | ||
f2718ade | 153 | //TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin); |
154 | ||
155 | TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.); | |
156 | TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.); | |
157 | hep->SetMarkerStyle(8); | |
158 | hep->SetMarkerSize(0.4); | |
03248e6d | 159 | |
f2718ade | 160 | |
161 | Int_t notf[MAX], nnotf=0; | |
162 | Int_t fake[MAX], nfake=0; | |
163 | Int_t mult[MAX], numb[MAX], nmult=0; | |
164 | ||
165 | Int_t ng; | |
166 | for (ng=0; ng<ngood; ng++) { | |
167 | Int_t lab=gt[ng].lab, tlab=-1; | |
168 | Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz; | |
03248e6d | 169 | Double_t ptg=TMath::Sqrt(pxg*pxg+pyg*pyg); |
170 | ||
03248e6d | 171 | |
f2718ade | 172 | if (ptg>pmin) hgood->Fill(ptg); |
03248e6d | 173 | |
174 | AliITStrackV2 *track=0; | |
f2718ade | 175 | Int_t cnt=0; |
03248e6d | 176 | Int_t j; |
177 | for (j=0; j<nentr; j++) { | |
f2718ade | 178 | AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(j); |
179 | Int_t lbl=trk->GetLabel(); | |
180 | if (lab==TMath::Abs(lbl)) { | |
181 | if (cnt==0) {track=trk; tlab=lbl;} | |
182 | cnt++; | |
183 | } | |
03248e6d | 184 | } |
f2718ade | 185 | if (cnt==0) { |
186 | notf[nnotf++]=lab; | |
03248e6d | 187 | continue; |
f2718ade | 188 | } else if (cnt>1){ |
189 | mult[nmult]=lab; | |
190 | numb[nmult]=cnt; nmult++; | |
03248e6d | 191 | } |
f2718ade | 192 | |
193 | if (ptg>pmin) { | |
194 | if (lab==tlab) hfound->Fill(ptg); | |
195 | else { | |
196 | fake[nfake++]=lab; | |
197 | hfake->Fill(ptg); | |
198 | } | |
199 | } | |
200 | ||
03248e6d | 201 | track->PropagateTo(3.,0.0028,65.19); |
202 | track->PropagateToVertex(); | |
203 | ||
03248e6d | 204 | Double_t xv,par[5]; track->GetExternalParameters(xv,par); |
205 | Float_t phi=TMath::ASin(par[2]) + track->GetAlpha(); | |
206 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
207 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
208 | Float_t lam=TMath::ATan(par[3]); | |
209 | Float_t pt_1=TMath::Abs(par[4]); | |
210 | ||
211 | Double_t phig=TMath::ATan2(pyg,pxg); | |
212 | hp->Fill((phi - phig)*1000.); | |
213 | ||
214 | Double_t lamg=TMath::ATan2(pzg,ptg); | |
215 | hl->Fill((lam - lamg)*1000.); | |
216 | ||
217 | Double_t d=10000*track->GetD(); | |
218 | hmpt->Fill(d); | |
219 | ||
f2718ade | 220 | //hptw->Fill(ptg,TMath::Abs(d)); |
03248e6d | 221 | |
222 | Double_t z=10000*track->GetZ(); | |
223 | hz->Fill(z); | |
224 | ||
03248e6d | 225 | hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
226 | ||
f2718ade | 227 | Float_t mom=1./(pt_1*TMath::Cos(lam)); |
228 | Float_t dedx=track->GetdEdx(); | |
229 | hep->Fill(mom,dedx,1.); | |
230 | if (TMath::Abs(gt[ng].code)==211) | |
231 | if (mom>0.4 && mom<0.5) he->Fill(dedx,1.); | |
232 | } | |
233 | ||
234 | ||
235 | cout<<"\nList of Not found tracks :\n"; | |
236 | for (ng=0; ng<nnotf; ng++){ | |
237 | cout<<notf[ng]<<"\t"; | |
238 | if ((ng%9)==8) cout<<"\n"; | |
239 | } | |
240 | cout<<"\n\nList of fake tracks :\n"; | |
241 | for (ng=0; ng<nfake; ng++){ | |
242 | cout<<fake[ng]<<"\t"; | |
243 | if ((ng%9)==8) cout<<"\n"; | |
244 | } | |
245 | cout<<"\n\nList of multiple found tracks :\n"; | |
246 | for (ng=0; ng<nmult; ng++) { | |
247 | cout<<"id. "<<mult[ng] | |
248 | <<" found - "<<numb[ng]<<"times\n"; | |
03248e6d | 249 | } |
f2718ade | 250 | cout<<endl; |
03248e6d | 251 | |
f2718ade | 252 | cerr<<"Number of good tracks : "<<ngood<<endl; |
253 | cerr<<"Number of found tracks : "<<nentr<<endl; | |
254 | ||
255 | ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl; | |
256 | if (ng!=0) | |
257 | cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n"; | |
258 | cerr<<endl; | |
03248e6d | 259 | |
260 | gStyle->SetOptStat(111110); | |
261 | gStyle->SetOptFit(1); | |
262 | ||
263 | TCanvas *c1=new TCanvas("c1","",0,0,700,850); | |
264 | ||
265 | TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw(); | |
266 | p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); | |
267 | hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd(); | |
268 | ||
269 | TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); | |
270 | p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10); | |
271 | hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd(); | |
272 | ||
273 | TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw(); | |
274 | p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); | |
275 | hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd(); | |
276 | ||
277 | TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw(); | |
278 | p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10); | |
279 | hmpt->SetXTitle("(micron)"); hmpt->Fit("gaus"); hz->Draw("same"); c1->cd(); | |
280 | //hfound->Sumw2(); | |
281 | //hptw->Sumw2(); | |
282 | //hg->SetMaximum(333); | |
283 | //hg->SetYTitle("Impact Parameter Resolution (micron)"); | |
284 | //hg->SetXTitle("Pt (GeV/c)"); | |
285 | //hg->GetXaxis()->SetRange(0,10); | |
286 | //hg->Divide(hptw,hfound,1,1.); | |
287 | //hg->DrawCopy(); c1->cd(); | |
288 | ||
289 | ||
290 | TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); | |
291 | p5->SetFillColor(41); p5->SetFrameFillColor(10); | |
292 | hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2(); | |
293 | hg->Divide(hfound,hgood,1,1.,"b"); | |
294 | hf->Divide(hfake,hgood,1,1.,"b"); | |
295 | hg->SetMaximum(1.4); | |
296 | hg->SetYTitle("Tracking efficiency"); | |
297 | hg->SetXTitle("Pt (GeV/c)"); | |
298 | hg->Draw(); | |
299 | ||
300 | TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4); | |
301 | line1->Draw("same"); | |
302 | TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4); | |
303 | line2->Draw("same"); | |
304 | ||
305 | hf->SetFillColor(1); | |
306 | hf->SetFillStyle(3013); | |
307 | hf->SetLineColor(2); | |
308 | hf->SetLineWidth(2); | |
309 | hf->Draw("histsame"); | |
310 | TText *text = new TText(0.461176,0.248448,"Fake tracks"); | |
311 | text->SetTextSize(0.05); | |
312 | text->Draw(); | |
313 | text = new TText(0.453919,1.11408,"Good tracks"); | |
314 | text->SetTextSize(0.05); | |
315 | text->Draw(); | |
316 | ||
c630aafd | 317 | TCanvas *c2=new TCanvas("c2","",320,32,530,590); |
318 | TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw(); | |
319 | p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); | |
320 | he->SetFillColor(2); he->SetFillStyle(3005); | |
321 | he->SetXTitle("Arbitrary Units"); | |
322 | he->Fit("gaus"); c2->cd(); | |
323 | ||
324 | TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); | |
325 | p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10); | |
326 | hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); | |
327 | hep->Draw(); c1->cd(); | |
88cb7938 | 328 | |
03248e6d | 329 | return 0; |
330 | } | |
331 | ||
88cb7938 | 332 | Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const char* evfoldname) { |
88cb7938 | 333 | AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname); |
c630aafd | 334 | if (rl == 0x0) { |
18856a77 | 335 | ::Fatal("AliITSComparisonV2.C::good_tracks_its", |
88cb7938 | 336 | "Can not find Run Loader in Folder Named %s", |
337 | evfoldname); | |
c630aafd | 338 | } |
88cb7938 | 339 | |
340 | AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader"); | |
c630aafd | 341 | if (itsl == 0x0) { |
18856a77 | 342 | cerr<<"AliITSComparisonV2.C : Can not find ITSLoader\n"; |
88cb7938 | 343 | delete rl; |
344 | return 3; | |
c630aafd | 345 | } |
88cb7938 | 346 | |
347 | rl->LoadgAlice(); | |
348 | rl->LoadHeader(); | |
349 | Int_t np = rl->GetHeader()->GetNtrack(); | |
03248e6d | 350 | |
03248e6d | 351 | Int_t *good=new Int_t[np]; |
352 | Int_t k; | |
353 | for (k=0; k<np; k++) good[k]=0; | |
354 | ||
88cb7938 | 355 | AliITS *ITS=(AliITS*)rl->GetAliRun()->GetDetector("ITS"); |
03248e6d | 356 | if (!ITS) { |
357 | cerr<<"can't get ITS !\n"; exit(8); | |
358 | } | |
359 | AliITSgeom *geom=ITS->GetITSgeom(); | |
360 | if (!geom) { | |
361 | cerr<<"can't get ITS geometry !\n"; exit(9); | |
362 | } | |
363 | ||
c630aafd | 364 | itsl->LoadRecPoints(); |
365 | TTree *cTree=itsl->TreeR(); | |
03248e6d | 366 | if (!cTree) { |
367 | cerr<<"Can't get cTree !\n"; exit(7); | |
368 | } | |
369 | TBranch *branch=cTree->GetBranch("Clusters"); | |
370 | if (!branch) { | |
371 | cerr<<"Can't get clusters branch !\n"; exit(8); | |
372 | } | |
373 | TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000); | |
374 | branch->SetAddress(&clusters); | |
375 | ||
376 | Int_t entr=(Int_t)cTree->GetEntries(); | |
377 | for (k=0; k<entr; k++) { | |
378 | cTree->GetEvent(k); | |
379 | Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue; | |
380 | Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det); | |
381 | if (lay<1 || lay>6) { | |
382 | cerr<<"wrong layer !\n"; exit(10); | |
383 | } | |
384 | while (ncl--) { | |
385 | AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl); | |
386 | Int_t l0=pnt->GetLabel(0); | |
c630aafd | 387 | if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;} |
03248e6d | 388 | Int_t l1=pnt->GetLabel(1); |
c630aafd | 389 | if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;} |
03248e6d | 390 | Int_t l2=pnt->GetLabel(2); |
c630aafd | 391 | if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;} |
03248e6d | 392 | Int_t mask=1<<(lay-1); |
393 | if (l0>=0) good[l0]|=mask; | |
394 | if (l1>=0) good[l1]|=mask; | |
395 | if (l2>=0) good[l2]|=mask; | |
396 | } | |
397 | } | |
398 | clusters->Delete(); delete clusters; | |
88cb7938 | 399 | itsl->UnloadRawClusters(); |
400 | ||
03248e6d | 401 | ifstream in("good_tracks_tpc"); |
402 | if (!in) { | |
403 | cerr<<"can't get good_tracks_tpc !\n"; exit(11); | |
404 | } | |
88cb7938 | 405 | |
406 | rl->LoadKinematics(); | |
407 | AliStack* stack = rl->Stack(); | |
03248e6d | 408 | Int_t nt=0; |
409 | Double_t px,py,pz,x,y,z; | |
410 | Int_t code,lab; | |
411 | while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) { | |
412 | if (good[lab] != 0x3F) continue; | |
88cb7938 | 413 | TParticle *p = (TParticle*)stack->Particle(lab); |
c630aafd | 414 | if (p == 0x0) { |
88cb7938 | 415 | cerr<<"Can not get particle "<<lab<<endl; |
416 | nt++; | |
417 | if (nt==max) {cerr<<"Too many good tracks !\n"; break;} | |
418 | continue; | |
c630aafd | 419 | } |
03248e6d | 420 | gt[nt].lab=lab; |
421 | gt[nt].code=p->GetPdgCode(); | |
422 | //**** px py pz - in global coordinate system | |
423 | gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz(); | |
424 | gt[nt].x=gt[nt].y=gt[nt].z=0.; | |
425 | nt++; | |
426 | if (nt==max) {cerr<<"Too many good tracks !\n"; break;} | |
427 | } | |
428 | ||
429 | delete[] good; | |
430 | ||
88cb7938 | 431 | rl->UnloadKinematics(); |
432 | rl->UnloadHeader(); | |
433 | rl->UnloadgAlice(); | |
03248e6d | 434 | |
435 | return nt; | |
436 | } | |
437 | ||
438 |