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