Fixing coding convention violations
[u/mrichter/AliRoot.git] / ITS / AliITSComparisonV2.C
CommitLineData
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
42struct GoodTrackITS {
43 Int_t lab;
44 Int_t code;
45 Float_t px,py,pz;
46 Float_t x,y,z;
47};
48
5102bab6 49Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max,
50const char* evfoldname = AliConfig::fgkDefaultEventFolderName);
51
c630aafd 52extern AliRun *gAlice;
53
0aa211b1 54Int_t AliITSComparisonV2(Float_t ptcutl=0.2, Float_t ptcuth=10.) {
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++;
2d343a94 90 //PH cerr<<ngood<<'\r';
03248e6d 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*/
2d343a94 112 TFile *ef=TFile::Open("AliESDs.root");
5102bab6 113 if ((!ef)||(!ef->IsOpen())) {
bf5f1739 114 ef=TFile::Open("AliESDits.root");
2d343a94 115 if ((!ef)||(!ef->IsOpen())) {
116 ::Fatal("AliITSComparisonV2.C","Can't open AliESDits.root !");
117 }
5102bab6 118 }
119 TKey *key=0;
120 TIter next(ef->GetListOfKeys());
121 if ((key=(TKey*)next())!=0) {
122 AliESD *event=(AliESD*)key->ReadObj();
123 Int_t ntrk=event->GetNumberOfTracks();
124 for (Int_t i=0; i<ntrk; i++) {
125 AliESDtrack *t=event->GetTrack(i);
94774f2b 126 UInt_t status=t->GetStatus();
127 UInt_t flags=AliESDtrack::kTPCin|AliESDtrack::kITSin;
67c3dcbe 128
94774f2b 129 if ((status&AliESDtrack::kITSrefit)==0)
4ec88b9c 130 if ((status&flags)!=flags) continue;
67c3dcbe 131
132 AliITStrackV2 *iotrack=0;
133 iotrack=new AliITStrackV2(*t);
134 //if (t->GetConstrainedChi2()>=20) continue; // constrained
135 //else iotrack=new AliITStrackV2(*t,kTRUE); // track
4ec88b9c 136 if ((status&flags)==flags) {
67c3dcbe 137 iotrack->PropagateTo(3.,0.0028,65.19);
138 iotrack->PropagateToVertex();
139 }
18856a77 140 tarray.AddLast(iotrack);
141 }
5102bab6 142 delete event;
143 }
144 ef->Close();
18856a77 145 }
5102bab6 146 Int_t nentr=tarray.GetEntriesFast();
18856a77 147
03248e6d 148 TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
149 TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
150 TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
151 hpt->SetFillColor(2);
152 TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300);
153 hmpt->SetFillColor(6);
154 TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300);
03248e6d 155
156 AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(0);
157 Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
158 Double_t pmax=6.0+pmin;
159
160 TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
161 TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
162 TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
163 TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
164 hg->SetLineColor(4); hg->SetLineWidth(2);
165 TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
166 hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
167
f2718ade 168 //TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin);
169
170 TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
171 TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.);
172 hep->SetMarkerStyle(8);
173 hep->SetMarkerSize(0.4);
03248e6d 174
f2718ade 175
176 Int_t notf[MAX], nnotf=0;
177 Int_t fake[MAX], nfake=0;
178 Int_t mult[MAX], numb[MAX], nmult=0;
179
180 Int_t ng;
181 for (ng=0; ng<ngood; ng++) {
182 Int_t lab=gt[ng].lab, tlab=-1;
183 Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz;
03248e6d 184 Double_t ptg=TMath::Sqrt(pxg*pxg+pyg*pyg);
0aa211b1 185 if (ptg<ptcutl) continue;
186 if (ptg>ptcuth) continue;
03248e6d 187
f2718ade 188 if (ptg>pmin) hgood->Fill(ptg);
03248e6d 189
190 AliITStrackV2 *track=0;
f2718ade 191 Int_t cnt=0;
03248e6d 192 Int_t j;
193 for (j=0; j<nentr; j++) {
f2718ade 194 AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(j);
195 Int_t lbl=trk->GetLabel();
196 if (lab==TMath::Abs(lbl)) {
197 if (cnt==0) {track=trk; tlab=lbl;}
198 cnt++;
199 }
03248e6d 200 }
f2718ade 201 if (cnt==0) {
202 notf[nnotf++]=lab;
03248e6d 203 continue;
f2718ade 204 } else if (cnt>1){
205 mult[nmult]=lab;
206 numb[nmult]=cnt; nmult++;
03248e6d 207 }
f2718ade 208
209 if (ptg>pmin) {
210 if (lab==tlab) hfound->Fill(ptg);
211 else {
212 fake[nfake++]=lab;
213 hfake->Fill(ptg);
214 }
215 }
216
03248e6d 217 Double_t xv,par[5]; track->GetExternalParameters(xv,par);
218 Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
219 if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
220 if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
221 Float_t lam=TMath::ATan(par[3]);
222 Float_t pt_1=TMath::Abs(par[4]);
223
224 Double_t phig=TMath::ATan2(pyg,pxg);
225 hp->Fill((phi - phig)*1000.);
226
227 Double_t lamg=TMath::ATan2(pzg,ptg);
228 hl->Fill((lam - lamg)*1000.);
229
230 Double_t d=10000*track->GetD();
231 hmpt->Fill(d);
232
f2718ade 233 //hptw->Fill(ptg,TMath::Abs(d));
03248e6d 234
235 Double_t z=10000*track->GetZ();
236 hz->Fill(z);
237
03248e6d 238 hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
239
f2718ade 240 Float_t mom=1./(pt_1*TMath::Cos(lam));
241 Float_t dedx=track->GetdEdx();
242 hep->Fill(mom,dedx,1.);
243 if (TMath::Abs(gt[ng].code)==211)
244 if (mom>0.4 && mom<0.5) he->Fill(dedx,1.);
245 }
246
247
248 cout<<"\nList of Not found tracks :\n";
249 for (ng=0; ng<nnotf; ng++){
250 cout<<notf[ng]<<"\t";
251 if ((ng%9)==8) cout<<"\n";
252 }
253 cout<<"\n\nList of fake tracks :\n";
254 for (ng=0; ng<nfake; ng++){
255 cout<<fake[ng]<<"\t";
256 if ((ng%9)==8) cout<<"\n";
257 }
258 cout<<"\n\nList of multiple found tracks :\n";
259 for (ng=0; ng<nmult; ng++) {
260 cout<<"id. "<<mult[ng]
261 <<" found - "<<numb[ng]<<"times\n";
03248e6d 262 }
f2718ade 263 cout<<endl;
03248e6d 264
f2718ade 265 cerr<<"Number of good tracks : "<<ngood<<endl;
266 cerr<<"Number of found tracks : "<<nentr<<endl;
267
268 ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl;
269 if (ng!=0)
270 cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n";
271 cerr<<endl;
03248e6d 272
273 gStyle->SetOptStat(111110);
274 gStyle->SetOptFit(1);
275
276 TCanvas *c1=new TCanvas("c1","",0,0,700,850);
277
2d343a94 278 Int_t minc=33;
279
03248e6d 280 TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
281 p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
2d343a94 282 hp->SetFillColor(4); hp->SetXTitle("(mrad)");
283 if (hp->GetEntries()<minc) hp->Draw(); else hp->Fit("gaus"); c1->cd();
03248e6d 284
285 TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
286 p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
2d343a94 287 hl->SetXTitle("(mrad)");
288 if (hl->GetEntries()<minc) hl->Draw(); else hl->Fit("gaus"); c1->cd();
03248e6d 289
290 TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
291 p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
2d343a94 292 hpt->SetXTitle("(%)");
293 if (hpt->GetEntries()<minc) hpt->Draw(); else hpt->Fit("gaus"); c1->cd();
03248e6d 294
295 TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
296 p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
2d343a94 297 hmpt->SetXTitle("(micron)");
298 if (hmpt->GetEntries()<minc) hmpt->Draw(); else hmpt->Fit("gaus");
299 hz->Draw("same"); c1->cd();
03248e6d 300 //hfound->Sumw2();
301 //hptw->Sumw2();
302 //hg->SetMaximum(333);
303 //hg->SetYTitle("Impact Parameter Resolution (micron)");
304 //hg->SetXTitle("Pt (GeV/c)");
305 //hg->GetXaxis()->SetRange(0,10);
306 //hg->Divide(hptw,hfound,1,1.);
307 //hg->DrawCopy(); c1->cd();
308
309
310 TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
311 p5->SetFillColor(41); p5->SetFrameFillColor(10);
312 hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
313 hg->Divide(hfound,hgood,1,1.,"b");
314 hf->Divide(hfake,hgood,1,1.,"b");
315 hg->SetMaximum(1.4);
316 hg->SetYTitle("Tracking efficiency");
317 hg->SetXTitle("Pt (GeV/c)");
318 hg->Draw();
319
320 TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
321 line1->Draw("same");
322 TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
323 line2->Draw("same");
324
325 hf->SetFillColor(1);
326 hf->SetFillStyle(3013);
327 hf->SetLineColor(2);
328 hf->SetLineWidth(2);
329 hf->Draw("histsame");
330 TText *text = new TText(0.461176,0.248448,"Fake tracks");
331 text->SetTextSize(0.05);
332 text->Draw();
333 text = new TText(0.453919,1.11408,"Good tracks");
334 text->SetTextSize(0.05);
335 text->Draw();
336
c630aafd 337 TCanvas *c2=new TCanvas("c2","",320,32,530,590);
338 TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
339 p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
340 he->SetFillColor(2); he->SetFillStyle(3005);
341 he->SetXTitle("Arbitrary Units");
2d343a94 342 if (he->GetEntries()<minc) he->Draw(); else he->Fit("gaus"); c2->cd();
c630aafd 343
344 TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
345 p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
346 hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
347 hep->Draw(); c1->cd();
2d343a94 348
349 TFile fc("AliITSComparisonV2.root","RECREATE");
350 c1->Write();
351 c2->Write();
352 fc.Close();
353
03248e6d 354 return 0;
355}
356
88cb7938 357Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const char* evfoldname) {
88cb7938 358 AliRunLoader* rl = AliRunLoader::GetRunLoader(evfoldname);
c630aafd 359 if (rl == 0x0) {
18856a77 360 ::Fatal("AliITSComparisonV2.C::good_tracks_its",
88cb7938 361 "Can not find Run Loader in Folder Named %s",
362 evfoldname);
c630aafd 363 }
88cb7938 364
365 AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
c630aafd 366 if (itsl == 0x0) {
18856a77 367 cerr<<"AliITSComparisonV2.C : Can not find ITSLoader\n";
88cb7938 368 delete rl;
369 return 3;
c630aafd 370 }
88cb7938 371
372 rl->LoadgAlice();
373 rl->LoadHeader();
374 Int_t np = rl->GetHeader()->GetNtrack();
03248e6d 375
03248e6d 376 Int_t *good=new Int_t[np];
377 Int_t k;
378 for (k=0; k<np; k++) good[k]=0;
379
88cb7938 380 AliITS *ITS=(AliITS*)rl->GetAliRun()->GetDetector("ITS");
03248e6d 381 if (!ITS) {
382 cerr<<"can't get ITS !\n"; exit(8);
383 }
384 AliITSgeom *geom=ITS->GetITSgeom();
385 if (!geom) {
386 cerr<<"can't get ITS geometry !\n"; exit(9);
387 }
388
c630aafd 389 itsl->LoadRecPoints();
390 TTree *cTree=itsl->TreeR();
03248e6d 391 if (!cTree) {
392 cerr<<"Can't get cTree !\n"; exit(7);
393 }
394 TBranch *branch=cTree->GetBranch("Clusters");
395 if (!branch) {
396 cerr<<"Can't get clusters branch !\n"; exit(8);
397 }
398 TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
399 branch->SetAddress(&clusters);
400
401 Int_t entr=(Int_t)cTree->GetEntries();
402 for (k=0; k<entr; k++) {
403 cTree->GetEvent(k);
404 Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue;
405 Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det);
406 if (lay<1 || lay>6) {
407 cerr<<"wrong layer !\n"; exit(10);
408 }
409 while (ncl--) {
410 AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl);
411 Int_t l0=pnt->GetLabel(0);
c630aafd 412 if (l0>=np) {cerr<<"Wrong label: "<<l0<<endl; continue;}
03248e6d 413 Int_t l1=pnt->GetLabel(1);
c630aafd 414 if (l1>=np) {cerr<<"Wrong label: "<<l1<<endl; continue;}
03248e6d 415 Int_t l2=pnt->GetLabel(2);
c630aafd 416 if (l2>=np) {cerr<<"Wrong label: "<<l2<<endl; continue;}
03248e6d 417 Int_t mask=1<<(lay-1);
418 if (l0>=0) good[l0]|=mask;
419 if (l1>=0) good[l1]|=mask;
420 if (l2>=0) good[l2]|=mask;
421 }
422 }
423 clusters->Delete(); delete clusters;
88cb7938 424 itsl->UnloadRawClusters();
425
03248e6d 426 ifstream in("good_tracks_tpc");
427 if (!in) {
428 cerr<<"can't get good_tracks_tpc !\n"; exit(11);
429 }
88cb7938 430
431 rl->LoadKinematics();
432 AliStack* stack = rl->Stack();
03248e6d 433 Int_t nt=0;
434 Double_t px,py,pz,x,y,z;
435 Int_t code,lab;
436 while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) {
437 if (good[lab] != 0x3F) continue;
88cb7938 438 TParticle *p = (TParticle*)stack->Particle(lab);
c630aafd 439 if (p == 0x0) {
88cb7938 440 cerr<<"Can not get particle "<<lab<<endl;
441 nt++;
442 if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
443 continue;
c630aafd 444 }
03248e6d 445 gt[nt].lab=lab;
446 gt[nt].code=p->GetPdgCode();
447//**** px py pz - in global coordinate system
448 gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz();
449 gt[nt].x=gt[nt].y=gt[nt].z=0.;
450 nt++;
451 if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
452 }
453
454 delete[] good;
455
88cb7938 456 rl->UnloadKinematics();
457 rl->UnloadHeader();
458 rl->UnloadgAlice();
03248e6d 459
460 return nt;
461}
462
463