New AliITSclustererV2 class: update of V2 test macros
[u/mrichter/AliRoot.git] / ITS / AliITSComparisonV2.C
CommitLineData
03248e6d 1#ifndef __CINT__
ddae8318 2 #include <Riostream.h>
03248e6d 3 #include <fstream.h>
4
5 #include "AliRun.h"
6 #include "AliITS.h"
7 #include "AliITSgeom.h"
8 #include "AliITStrackerV2.h"
9 #include "AliITStrackV2.h"
10 #include "AliITSclusterV2.h"
11
12 #include "TFile.h"
13 #include "TTree.h"
14 #include "TH1.h"
f2718ade 15 #include "TH2.h"
03248e6d 16 #include "TObjArray.h"
17 #include "TStyle.h"
18 #include "TCanvas.h"
19 #include "TLine.h"
20 #include "TText.h"
21 #include "TParticle.h"
22#endif
23
24struct GoodTrackITS {
25 Int_t lab;
26 Int_t code;
27 Float_t px,py,pz;
28 Float_t x,y,z;
29};
30
31Int_t AliITSComparisonV2(Int_t event=0) {
32 cerr<<"Doing comparison...\n";
33
34 const Int_t MAX=15000;
35 Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const Int_t event);
36
37 Int_t nentr=0; TObjArray tarray(2000);
38 {/* Load tracks */
39 TFile *tf=TFile::Open("AliITStracksV2.root");
40 if (!tf->IsOpen()) {cerr<<"Can't open AliITStracksV2.root !\n"; return 3;}
41 char tname[100]; sprintf(tname,"TreeT_ITS_%d",event);
42 TTree *tracktree=(TTree*)tf->Get(tname);
43 if (!tracktree) {cerr<<"Can't get a tree with ITS tracks !\n"; return 4;}
44 TBranch *tbranch=tracktree->GetBranch("tracks");
45 nentr=(Int_t)tracktree->GetEntries();
f2718ade 46
03248e6d 47 for (Int_t i=0; i<nentr; i++) {
48 AliITStrackV2 *iotrack=new AliITStrackV2;
49 tbranch->SetAddress(&iotrack);
50 tracktree->GetEvent(i);
51 tarray.AddLast(iotrack);
52 /*if (itsLabel != 1234) continue;
53 Int_t nc=iotrack->GetNumberOfClusters();
54 for (Int_t k=0; k<nc; k++) {
55 Int_t index=iotrack->GetClusterIndex(k);
56 AliITSclusterV2 *c=tracker.GetCluster(index);
57 cout<<c->GetLabel(0)<<' '<<c->GetLabel(1)<<' '<<c->GetLabel(2)<<endl;
58 }*/
59 }
60 delete tracktree; //Thanks to Mariana Bondila
61 tf->Close();
62 }
63
64 /* Generate a list of "good" tracks */
65 GoodTrackITS gt[MAX];
66 Int_t ngood=0;
67 ifstream in("good_tracks_its");
68 if (in) {
69 cerr<<"Reading good tracks...\n";
70 while (in>>gt[ngood].lab>>gt[ngood].code>>
71 gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>>
72 gt[ngood].x >>gt[ngood].y >>gt[ngood].z) {
73 ngood++;
74 cerr<<ngood<<'\r';
75 if (ngood==MAX) {
76 cerr<<"Too many good tracks !\n";
77 break;
78 }
79 }
80 if (!in.eof()) cerr<<"Read error (good_tracks_its) !\n";
81 } else {
82 cerr<<"Marking good tracks (this will take a while)...\n";
83 ngood=good_tracks_its(gt,MAX,event);
84 ofstream out("good_tracks_its");
85 if (out) {
86 for (Int_t ngd=0; ngd<ngood; ngd++)
87 out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '
88 <<gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '
89 <<gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl;
90 } else cerr<<"Can not open file (good_tracks_its) !\n";
91 out.close();
92 }
03248e6d 93
94 TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4);
95 TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4);
96 TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.);
97 hpt->SetFillColor(2);
98 TH1F *hmpt=new TH1F("hmpt","Transverse impact parameter",30,-300,300);
99 hmpt->SetFillColor(6);
100 TH1F *hz=new TH1F("hz","Longitudinal impact parameter",30,-300,300);
03248e6d 101
102 AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(0);
103 Double_t pmin=0.1*(100/0.299792458/0.2/trk->GetConvConst());
104 Double_t pmax=6.0+pmin;
105
106 TH1F *hgood=new TH1F("hgood","Good tracks",30,pmin,pmax);
107 TH1F *hfound=new TH1F("hfound","Found tracks",30,pmin,pmax);
108 TH1F *hfake=new TH1F("hfake","Fake tracks",30,pmin,pmax);
109 TH1F *hg=new TH1F("hg","",30,pmin,pmax); //efficiency for good tracks
110 hg->SetLineColor(4); hg->SetLineWidth(2);
111 TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,pmin,pmax);
112 hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2);
113
f2718ade 114 //TH1F *hptw=new TH1F("hptw","Weghted pt",30,pmax,pmin);
115
116 TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.);
117 TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,200.);
118 hep->SetMarkerStyle(8);
119 hep->SetMarkerSize(0.4);
03248e6d 120
f2718ade 121
122 Int_t notf[MAX], nnotf=0;
123 Int_t fake[MAX], nfake=0;
124 Int_t mult[MAX], numb[MAX], nmult=0;
125
126 Int_t ng;
127 for (ng=0; ng<ngood; ng++) {
128 Int_t lab=gt[ng].lab, tlab=-1;
129 Double_t pxg=gt[ng].px, pyg=gt[ng].py, pzg=gt[ng].pz;
03248e6d 130 Double_t ptg=TMath::Sqrt(pxg*pxg+pyg*pyg);
131
03248e6d 132
f2718ade 133 if (ptg>pmin) hgood->Fill(ptg);
03248e6d 134
135 AliITStrackV2 *track=0;
f2718ade 136 Int_t cnt=0;
03248e6d 137 Int_t j;
138 for (j=0; j<nentr; j++) {
f2718ade 139 AliITStrackV2 *trk=(AliITStrackV2*)tarray.UncheckedAt(j);
140 Int_t lbl=trk->GetLabel();
141 if (lab==TMath::Abs(lbl)) {
142 if (cnt==0) {track=trk; tlab=lbl;}
143 cnt++;
144 }
03248e6d 145 }
f2718ade 146 if (cnt==0) {
147 notf[nnotf++]=lab;
03248e6d 148 continue;
f2718ade 149 } else if (cnt>1){
150 mult[nmult]=lab;
151 numb[nmult]=cnt; nmult++;
03248e6d 152 }
f2718ade 153
154 if (ptg>pmin) {
155 if (lab==tlab) hfound->Fill(ptg);
156 else {
157 fake[nfake++]=lab;
158 hfake->Fill(ptg);
159 }
160 }
161
03248e6d 162 track->PropagateTo(3.,0.0028,65.19);
163 track->PropagateToVertex();
164
03248e6d 165 Double_t xv,par[5]; track->GetExternalParameters(xv,par);
166 Float_t phi=TMath::ASin(par[2]) + track->GetAlpha();
167 if (phi<-TMath::Pi()) phi+=2*TMath::Pi();
168 if (phi>=TMath::Pi()) phi-=2*TMath::Pi();
169 Float_t lam=TMath::ATan(par[3]);
170 Float_t pt_1=TMath::Abs(par[4]);
171
172 Double_t phig=TMath::ATan2(pyg,pxg);
173 hp->Fill((phi - phig)*1000.);
174
175 Double_t lamg=TMath::ATan2(pzg,ptg);
176 hl->Fill((lam - lamg)*1000.);
177
178 Double_t d=10000*track->GetD();
179 hmpt->Fill(d);
180
f2718ade 181 //hptw->Fill(ptg,TMath::Abs(d));
03248e6d 182
183 Double_t z=10000*track->GetZ();
184 hz->Fill(z);
185
03248e6d 186 hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.);
187
f2718ade 188 Float_t mom=1./(pt_1*TMath::Cos(lam));
189 Float_t dedx=track->GetdEdx();
190 hep->Fill(mom,dedx,1.);
191 if (TMath::Abs(gt[ng].code)==211)
192 if (mom>0.4 && mom<0.5) he->Fill(dedx,1.);
193 }
194
195
196 cout<<"\nList of Not found tracks :\n";
197 for (ng=0; ng<nnotf; ng++){
198 cout<<notf[ng]<<"\t";
199 if ((ng%9)==8) cout<<"\n";
200 }
201 cout<<"\n\nList of fake tracks :\n";
202 for (ng=0; ng<nfake; ng++){
203 cout<<fake[ng]<<"\t";
204 if ((ng%9)==8) cout<<"\n";
205 }
206 cout<<"\n\nList of multiple found tracks :\n";
207 for (ng=0; ng<nmult; ng++) {
208 cout<<"id. "<<mult[ng]
209 <<" found - "<<numb[ng]<<"times\n";
03248e6d 210 }
f2718ade 211 cout<<endl;
03248e6d 212
f2718ade 213 cerr<<"Number of good tracks : "<<ngood<<endl;
214 cerr<<"Number of found tracks : "<<nentr<<endl;
215
216 ng=(Int_t)hgood->GetEntries(); //cerr<<"Good tracks "<<ng<<endl;
217 if (ng!=0)
218 cerr<<"Integral efficiency is about "<<hfound->GetEntries()/ng*100.<<" %\n";
219 cerr<<endl;
03248e6d 220
221 gStyle->SetOptStat(111110);
222 gStyle->SetOptFit(1);
223
224 TCanvas *c1=new TCanvas("c1","",0,0,700,850);
225
226 TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw();
227 p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10);
228 hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd();
229
230 TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw();
231 p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10);
232 hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd();
233
234 TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw();
235 p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10);
236 hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd();
237
238 TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw();
239 p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10);
240 hmpt->SetXTitle("(micron)"); hmpt->Fit("gaus"); hz->Draw("same"); c1->cd();
241 //hfound->Sumw2();
242 //hptw->Sumw2();
243 //hg->SetMaximum(333);
244 //hg->SetYTitle("Impact Parameter Resolution (micron)");
245 //hg->SetXTitle("Pt (GeV/c)");
246 //hg->GetXaxis()->SetRange(0,10);
247 //hg->Divide(hptw,hfound,1,1.);
248 //hg->DrawCopy(); c1->cd();
249
250
251 TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd();
252 p5->SetFillColor(41); p5->SetFrameFillColor(10);
253 hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2();
254 hg->Divide(hfound,hgood,1,1.,"b");
255 hf->Divide(hfake,hgood,1,1.,"b");
256 hg->SetMaximum(1.4);
257 hg->SetYTitle("Tracking efficiency");
258 hg->SetXTitle("Pt (GeV/c)");
259 hg->Draw();
260
261 TLine *line1 = new TLine(pmin,1.0,pmax,1.0); line1->SetLineStyle(4);
262 line1->Draw("same");
263 TLine *line2 = new TLine(pmin,0.9,pmax,0.9); line2->SetLineStyle(4);
264 line2->Draw("same");
265
266 hf->SetFillColor(1);
267 hf->SetFillStyle(3013);
268 hf->SetLineColor(2);
269 hf->SetLineWidth(2);
270 hf->Draw("histsame");
271 TText *text = new TText(0.461176,0.248448,"Fake tracks");
272 text->SetTextSize(0.05);
273 text->Draw();
274 text = new TText(0.453919,1.11408,"Good tracks");
275 text->SetTextSize(0.05);
276 text->Draw();
277
f2718ade 278
279
280 TCanvas *c2=new TCanvas("c2","",320,32,530,590);
281
282 TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw();
283 p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10);
284 he->SetFillColor(2); he->SetFillStyle(3005);
285 he->SetXTitle("Arbitrary Units");
286 he->Fit("gaus"); c2->cd();
287
288 TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw();
289 p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10);
290 hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)");
291 hep->Draw(); c1->cd();
292
293
03248e6d 294 return 0;
295}
296
297Int_t good_tracks_its(GoodTrackITS *gt, const Int_t max, const Int_t event) {
298 if (gAlice) {delete gAlice; gAlice=0;}
299
300 TFile *file=TFile::Open("galice.root");
301 if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);}
302 if (!(gAlice=(AliRun*)file->Get("gAlice"))) {
303 cerr<<"gAlice have not been found on galice.root !\n";
304 exit(5);
305 }
306
307 Int_t np=gAlice->GetEvent(event);
308
309 Int_t *good=new Int_t[np];
310 Int_t k;
311 for (k=0; k<np; k++) good[k]=0;
312
313 AliITS *ITS=(AliITS*)gAlice->GetDetector("ITS");
314 if (!ITS) {
315 cerr<<"can't get ITS !\n"; exit(8);
316 }
317 AliITSgeom *geom=ITS->GetITSgeom();
318 if (!geom) {
319 cerr<<"can't get ITS geometry !\n"; exit(9);
320 }
321
322 TFile *cf=TFile::Open("AliITSclustersV2.root");
323 if (!cf->IsOpen()){
324 cerr<<"Can't open AliITSclustersV2.root !\n"; exit(6);
325 }
326 char cname[100]; sprintf(cname,"TreeC_ITS_%d",event);
327 TTree *cTree=(TTree*)cf->Get(cname);
328 if (!cTree) {
329 cerr<<"Can't get cTree !\n"; exit(7);
330 }
331 TBranch *branch=cTree->GetBranch("Clusters");
332 if (!branch) {
333 cerr<<"Can't get clusters branch !\n"; exit(8);
334 }
335 TClonesArray *clusters=new TClonesArray("AliITSclusterV2",10000);
336 branch->SetAddress(&clusters);
337
338 Int_t entr=(Int_t)cTree->GetEntries();
339 for (k=0; k<entr; k++) {
340 cTree->GetEvent(k);
341 Int_t ncl=clusters->GetEntriesFast(); if (ncl==0) continue;
342 Int_t lay,lad,det; geom->GetModuleId(k,lay,lad,det);
343 if (lay<1 || lay>6) {
344 cerr<<"wrong layer !\n"; exit(10);
345 }
346 while (ncl--) {
347 AliITSclusterV2 *pnt=(AliITSclusterV2*)clusters->UncheckedAt(ncl);
348 Int_t l0=pnt->GetLabel(0);
349 Int_t l1=pnt->GetLabel(1);
350 Int_t l2=pnt->GetLabel(2);
351 Int_t mask=1<<(lay-1);
352 if (l0>=0) good[l0]|=mask;
353 if (l1>=0) good[l1]|=mask;
354 if (l2>=0) good[l2]|=mask;
355 }
356 }
357 clusters->Delete(); delete clusters;
358 delete cTree; //Thanks to Mariana Bondila
359 cf->Close();
360
361 ifstream in("good_tracks_tpc");
362 if (!in) {
363 cerr<<"can't get good_tracks_tpc !\n"; exit(11);
364 }
365 Int_t nt=0;
366 Double_t px,py,pz,x,y,z;
367 Int_t code,lab;
368 while (in>>lab>>code>>px>>py>>pz>>x>>y>>z) {
369 if (good[lab] != 0x3F) continue;
370 TParticle *p = (TParticle*)gAlice->Particle(lab);
371 gt[nt].lab=lab;
372 gt[nt].code=p->GetPdgCode();
373//**** px py pz - in global coordinate system
374 gt[nt].px=p->Px(); gt[nt].py=p->Py(); gt[nt].pz=p->Pz();
375 gt[nt].x=gt[nt].y=gt[nt].z=0.;
376 nt++;
377 if (nt==max) {cerr<<"Too many good tracks !\n"; break;}
378 }
379
380 delete[] good;
381
382 delete gAlice; gAlice=0;
383 file->Close();
384
385 return nt;
386}
387
388