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7f6ddf58 | 1 | /**************************************************************************** |
2 | * Very important, delicate and rather obscure macro. * | |
3 | * * | |
4 | * Creates list of "trackable" tracks, * | |
7f6ddf58 | 5 | * calculates efficiency, resolutions etc. * |
6 | * * | |
024a7fe9 | 7 | * Origin: I.Belikov, CERN, Jouri.Belikov@cern.ch * |
7f6ddf58 | 8 | * with several nice improvements by: M.Ivanov, GSI, m.ivanov@gsi.de * |
9 | ****************************************************************************/ | |
10 | ||
be9c5115 | 11 | #ifndef __CINT__ |
12 | #include "alles.h" | |
b9de75e1 | 13 | #include "AliTPCtracker.h" |
be9c5115 | 14 | #endif |
15 | ||
f38c8ae5 | 16 | struct GoodTrackTPC { |
cc80f89e | 17 | Int_t lab; |
18 | Int_t code; | |
19 | Float_t px,py,pz; | |
20 | Float_t x,y,z; | |
21 | }; | |
cc80f89e | 22 | |
7f6ddf58 | 23 | Int_t AliTPCComparison(Int_t event=0) { |
fbb58996 | 24 | |
9b280d80 | 25 | cerr<<"Doing comparison...\n"; |
d2cfebcb | 26 | |
7f6ddf58 | 27 | const Int_t MAX=20000; |
28 | Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event); | |
8c555625 | 29 | |
7f6ddf58 | 30 | gBenchmark->Start("AliTPCComparison"); |
afc42102 | 31 | |
7f6ddf58 | 32 | Int_t nentr=0,i=0; TObjArray tarray(MAX); |
33 | { /*Load tracks*/ | |
afc42102 | 34 | TFile *tf=TFile::Open("AliTPCtracks.root"); |
7f6ddf58 | 35 | if (!tf->IsOpen()) {cerr<<"Can't open AliTPCtracks.root !\n"; return 3;} |
36 | ||
37 | char tname[100]; sprintf(tname,"TreeT_TPC_%d",event); | |
38 | TTree *tracktree=(TTree*)tf->Get(tname); | |
39 | if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n"; return 4;} | |
afc42102 | 40 | |
7f6ddf58 | 41 | TBranch *tbranch=tracktree->GetBranch("tracks"); |
42 | nentr=(Int_t)tracktree->GetEntries(); | |
43 | AliTPCtrack *iotrack=0; | |
44 | for (i=0; i<nentr; i++) { | |
be9c5115 | 45 | iotrack=new AliTPCtrack; |
73042f01 | 46 | tbranch->SetAddress(&iotrack); |
47 | tracktree->GetEvent(i); | |
73042f01 | 48 | tarray.AddLast(iotrack); |
7f6ddf58 | 49 | } |
50 | delete tracktree; //Thanks to Mariana Bondila | |
b9de75e1 | 51 | tf->Close(); |
7f6ddf58 | 52 | } |
8c555625 | 53 | |
7f6ddf58 | 54 | /* Generate a list of "good" tracks */ |
f38c8ae5 | 55 | GoodTrackTPC gt[MAX]; |
cc80f89e | 56 | Int_t ngood=0; |
be9c5115 | 57 | ifstream in("good_tracks_tpc"); |
cc80f89e | 58 | if (in) { |
59 | cerr<<"Reading good tracks...\n"; | |
7f6ddf58 | 60 | while (in>>gt[ngood].lab>>gt[ngood].code>> |
be9c5115 | 61 | gt[ngood].px>>gt[ngood].py>>gt[ngood].pz>> |
62 | gt[ngood].x >>gt[ngood].y >>gt[ngood].z) { | |
cc80f89e | 63 | ngood++; |
64 | cerr<<ngood<<'\r'; | |
f38c8ae5 | 65 | if (ngood==MAX) { |
cc80f89e | 66 | cerr<<"Too many good tracks !\n"; |
67 | break; | |
68 | } | |
69 | } | |
be9c5115 | 70 | if (!in.eof()) cerr<<"Read error (good_tracks_tpc) !\n"; |
cc80f89e | 71 | } else { |
72 | cerr<<"Marking good tracks (this will take a while)...\n"; | |
7f6ddf58 | 73 | ngood=good_tracks_tpc(gt,MAX, event); |
be9c5115 | 74 | ofstream out("good_tracks_tpc"); |
cc80f89e | 75 | if (out) { |
76 | for (Int_t ngd=0; ngd<ngood; ngd++) | |
7f6ddf58 | 77 | out<<gt[ngd].lab<<' '<<gt[ngd].code<<' '<< |
be9c5115 | 78 | gt[ngd].px<<' '<<gt[ngd].py<<' '<<gt[ngd].pz<<' '<< |
79 | gt[ngd].x <<' '<<gt[ngd].y <<' '<<gt[ngd].z <<endl; | |
80 | } else cerr<<"Can not open file (good_tracks_tpc) !\n"; | |
cc80f89e | 81 | out.close(); |
82 | } | |
7f6ddf58 | 83 | |
84 | ||
cc80f89e | 85 | |
cc80f89e | 86 | TH1F *hp=new TH1F("hp","PHI resolution",50,-20.,20.); hp->SetFillColor(4); |
87 | TH1F *hl=new TH1F("hl","LAMBDA resolution",50,-20,20);hl->SetFillColor(4); | |
8c555625 | 88 | TH1F *hpt=new TH1F("hpt","Relative Pt resolution",30,-10.,10.); |
89 | hpt->SetFillColor(2); | |
cc80f89e | 90 | TH1F *hmpt=new TH1F("hmpt","Relative Pt resolution (pt>4GeV/c)",30,-60,60); |
91 | hmpt->SetFillColor(6); | |
8c555625 | 92 | |
7f6ddf58 | 93 | TH1F *hgood=new TH1F("hgood","Good tracks",30,0.1,6.1); |
94 | TH1F *hfound=new TH1F("hfound","Found tracks",30,0.1,6.1); | |
95 | TH1F *hfake=new TH1F("hfake","Fake tracks",30,0.1,6.1); | |
96 | TH1F *hg=new TH1F("hg","",30,0.1,6.1); //efficiency for good tracks | |
8c555625 | 97 | hg->SetLineColor(4); hg->SetLineWidth(2); |
7f6ddf58 | 98 | TH1F *hf=new TH1F("hf","Efficiency for fake tracks",30,0.1,6.1); |
8c555625 | 99 | hf->SetFillColor(1); hf->SetFillStyle(3013); hf->SetLineWidth(2); |
100 | ||
cc80f89e | 101 | TH1F *he =new TH1F("he","dE/dX for pions with 0.4<p<0.5 GeV/c",50,0.,100.); |
7f6ddf58 | 102 | TH2F *hep=new TH2F("hep","dE/dX vs momentum",50,0.,2.,50,0.,400.); |
be9c5115 | 103 | hep->SetMarkerStyle(8); |
104 | hep->SetMarkerSize(0.4); | |
8c555625 | 105 | |
7f6ddf58 | 106 | //MI change |
107 | Int_t mingood=ngood; | |
108 | Int_t track_notfound[MAX], itrack_notfound=0; | |
109 | Int_t track_fake[MAX], itrack_fake=0; | |
110 | Int_t track_multifound[MAX], track_multifound_n[MAX], itrack_multifound=0; | |
cf98c13f | 111 | |
cc80f89e | 112 | while (ngood--) { |
cf98c13f | 113 | Int_t lab=gt[ngood].lab,tlab=-1; |
cc80f89e | 114 | Float_t ptg= |
115 | TMath::Sqrt(gt[ngood].px*gt[ngood].px + gt[ngood].py*gt[ngood].py); | |
8c555625 | 116 | |
7f6ddf58 | 117 | if (ptg<1e-33) continue; // for those not crossing 0 pad row |
b9de75e1 | 118 | |
8c555625 | 119 | hgood->Fill(ptg); |
cc80f89e | 120 | |
cf98c13f | 121 | AliTPCtrack *track=0; |
7f6ddf58 | 122 | for (i=0; i<nentr; i++) { |
cf98c13f | 123 | track=(AliTPCtrack*)tarray.UncheckedAt(i); |
73042f01 | 124 | tlab=track->GetLabel(); |
cc80f89e | 125 | if (lab==TMath::Abs(tlab)) break; |
8c555625 | 126 | } |
7f6ddf58 | 127 | if (i==nentr) { |
cf98c13f | 128 | track_notfound[itrack_notfound++]=lab; |
cc80f89e | 129 | continue; |
130 | } | |
cf98c13f | 131 | |
132 | //MI change - addition | |
133 | Int_t micount=0; | |
134 | Int_t mi; | |
135 | AliTPCtrack * mitrack; | |
7f6ddf58 | 136 | for (mi=0; mi<nentr; mi++) { |
cf98c13f | 137 | mitrack=(AliTPCtrack*)tarray.UncheckedAt(mi); |
138 | if (lab==TMath::Abs(mitrack->GetLabel())) micount++; | |
139 | } | |
140 | if (micount>1) { | |
cf98c13f | 141 | track_multifound[itrack_multifound]=lab; |
142 | track_multifound_n[itrack_multifound]=micount; | |
143 | itrack_multifound++; | |
144 | } | |
145 | ||
7f6ddf58 | 146 | Double_t xk=gt[ngood].x; |
cc80f89e | 147 | track->PropagateTo(xk); |
3c0f9266 | 148 | |
cc80f89e | 149 | if (lab==tlab) hfound->Fill(ptg); |
cf98c13f | 150 | else { |
151 | track_fake[itrack_fake++]=lab; | |
152 | hfake->Fill(ptg); | |
cf98c13f | 153 | } |
cc80f89e | 154 | |
be9c5115 | 155 | Double_t par[5]; track->GetExternalParameters(xk,par); |
156 | Float_t phi=TMath::ASin(par[2]) + track->GetAlpha(); | |
157 | if (phi<-TMath::Pi()) phi+=2*TMath::Pi(); | |
158 | if (phi>=TMath::Pi()) phi-=2*TMath::Pi(); | |
159 | Float_t lam=TMath::ATan(par[3]); | |
160 | Float_t pt_1=TMath::Abs(par[4]); | |
cc80f89e | 161 | |
162 | if (TMath::Abs(gt[ngood].code)==11 && ptg>4.) { | |
be9c5115 | 163 | hmpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
cc80f89e | 164 | } else { |
165 | Float_t phig=TMath::ATan2(gt[ngood].py,gt[ngood].px); | |
cc80f89e | 166 | hp->Fill((phi - phig)*1000.); |
3c0f9266 | 167 | |
cc80f89e | 168 | Float_t lamg=TMath::ATan2(gt[ngood].pz,ptg); |
cc80f89e | 169 | hl->Fill((lam - lamg)*1000.); |
170 | ||
be9c5115 | 171 | hpt->Fill((pt_1 - 1/ptg)/(1/ptg)*100.); |
cc80f89e | 172 | } |
73042f01 | 173 | |
be9c5115 | 174 | Float_t mom=1./(pt_1*TMath::Cos(lam)); |
73042f01 | 175 | Float_t dedx=track->GetdEdx(); |
cc80f89e | 176 | hep->Fill(mom,dedx,1.); |
177 | if (TMath::Abs(gt[ngood].code)==211) | |
178 | if (mom>0.4 && mom<0.5) { | |
179 | he->Fill(dedx,1.); | |
180 | } | |
73042f01 | 181 | |
cc80f89e | 182 | } |
183 | ||
cf98c13f | 184 | cout<<"\nList of Not found tracks :\n"; |
cf98c13f | 185 | for ( i = 0; i< itrack_notfound; i++){ |
186 | cout<<track_notfound[i]<<"\t"; | |
187 | if ((i%5)==4) cout<<"\n"; | |
188 | } | |
189 | cout<<"\nList of fake tracks :\n"; | |
190 | for ( i = 0; i< itrack_fake; i++){ | |
191 | cout<<track_fake[i]<<"\t"; | |
192 | if ((i%5)==4) cout<<"\n"; | |
193 | } | |
194 | cout<<"\nList of multiple found tracks :\n"; | |
195 | for ( i=0; i<itrack_multifound; i++) { | |
7f6ddf58 | 196 | cout<<"id. "<<track_multifound[i] |
197 | <<" found - "<<track_multifound_n[i]<<"times\n"; | |
cf98c13f | 198 | } |
8c555625 | 199 | |
7f6ddf58 | 200 | Stat_t ng=hgood->GetEntries(), nf=hfound->GetEntries(); |
201 | if (ng!=0) cerr<<"\n\nIntegral efficiency is about "<<nf/ng*100.<<" %\n"; | |
202 | cout<<"Total number of found tracks ="<<nentr<<endl; | |
203 | cout<<"Total number of \"good\" tracks =" | |
204 | <<mingood<<" (selected for comparison: "<<ng<<')'<<endl<<endl; | |
205 | ||
206 | ||
8c555625 | 207 | gStyle->SetOptStat(111110); |
208 | gStyle->SetOptFit(1); | |
209 | ||
210 | TCanvas *c1=new TCanvas("c1","",0,0,700,850); | |
211 | ||
212 | TPad *p1=new TPad("p1","",0,0.3,.5,.6); p1->Draw(); | |
213 | p1->cd(); p1->SetFillColor(42); p1->SetFrameFillColor(10); | |
214 | hp->SetFillColor(4); hp->SetXTitle("(mrad)"); hp->Fit("gaus"); c1->cd(); | |
215 | ||
216 | TPad *p2=new TPad("p2","",0.5,.3,1,.6); p2->Draw(); | |
217 | p2->cd(); p2->SetFillColor(42); p2->SetFrameFillColor(10); | |
218 | hl->SetXTitle("(mrad)"); hl->Fit("gaus"); c1->cd(); | |
219 | ||
220 | TPad *p3=new TPad("p3","",0,0,0.5,0.3); p3->Draw(); | |
221 | p3->cd(); p3->SetFillColor(42); p3->SetFrameFillColor(10); | |
222 | hpt->SetXTitle("(%)"); hpt->Fit("gaus"); c1->cd(); | |
223 | ||
224 | TPad *p4=new TPad("p4","",0.5,0,1,0.3); p4->Draw(); | |
225 | p4->cd(); p4->SetFillColor(42); p4->SetFrameFillColor(10); | |
cc80f89e | 226 | hmpt->SetXTitle("(%)"); hmpt->Fit("gaus"); c1->cd(); |
8c555625 | 227 | |
228 | TPad *p5=new TPad("p5","",0,0.6,1,1); p5->Draw(); p5->cd(); | |
3c0f9266 | 229 | p5->SetFillColor(41); p5->SetFrameFillColor(10); |
8c555625 | 230 | hfound->Sumw2(); hgood->Sumw2(); hfake->Sumw2(); |
231 | hg->Divide(hfound,hgood,1,1.,"b"); | |
232 | hf->Divide(hfake,hgood,1,1.,"b"); | |
233 | hg->SetMaximum(1.4); | |
234 | hg->SetYTitle("Tracking efficiency"); | |
235 | hg->SetXTitle("Pt (GeV/c)"); | |
236 | hg->Draw(); | |
237 | ||
7f6ddf58 | 238 | TLine *line1 = new TLine(0.1,1.0,6.1,1.0); line1->SetLineStyle(4); |
8c555625 | 239 | line1->Draw("same"); |
7f6ddf58 | 240 | TLine *line2 = new TLine(0.1,0.9,6.1,0.9); line2->SetLineStyle(4); |
8c555625 | 241 | line2->Draw("same"); |
242 | ||
243 | hf->SetFillColor(1); | |
244 | hf->SetFillStyle(3013); | |
245 | hf->SetLineColor(2); | |
246 | hf->SetLineWidth(2); | |
247 | hf->Draw("histsame"); | |
248 | TText *text = new TText(0.461176,0.248448,"Fake tracks"); | |
249 | text->SetTextSize(0.05); | |
250 | text->Draw(); | |
251 | text = new TText(0.453919,1.11408,"Good tracks"); | |
252 | text->SetTextSize(0.05); | |
253 | text->Draw(); | |
3c0f9266 | 254 | |
255 | ||
256 | ||
257 | TCanvas *c2=new TCanvas("c2","",320,32,530,590); | |
258 | ||
259 | TPad *p6=new TPad("p6","",0.,0.,1.,.5); p6->Draw(); | |
260 | p6->cd(); p6->SetFillColor(42); p6->SetFrameFillColor(10); | |
261 | he->SetFillColor(2); he->SetFillStyle(3005); | |
262 | he->SetXTitle("Arbitrary Units"); | |
263 | he->Fit("gaus"); c2->cd(); | |
264 | ||
265 | TPad *p7=new TPad("p7","",0.,0.5,1.,1.); p7->Draw(); | |
266 | p7->cd(); p7->SetFillColor(42); p7->SetFrameFillColor(10); | |
267 | hep->SetXTitle("p (Gev/c)"); hep->SetYTitle("dE/dX (Arb. Units)"); | |
268 | hep->Draw(); c1->cd(); | |
269 | ||
cf98c13f | 270 | gBenchmark->Stop("AliTPCComparison"); |
271 | gBenchmark->Show("AliTPCComparison"); | |
272 | ||
273 | ||
73042f01 | 274 | return 0; |
cc80f89e | 275 | } |
3c0f9266 | 276 | |
cc80f89e | 277 | |
7f6ddf58 | 278 | Int_t good_tracks_tpc(GoodTrackTPC *gt, const Int_t max, const Int_t event) { |
279 | Int_t nt=0; | |
cc80f89e | 280 | |
f38c8ae5 | 281 | TFile *file=TFile::Open("galice.root"); |
73042f01 | 282 | if (!file->IsOpen()) {cerr<<"Can't open galice.root !\n"; exit(4);} |
283 | ||
284 | if (!(gAlice=(AliRun*)file->Get("gAlice"))) { | |
285 | cerr<<"gAlice have not been found on galice.root !\n"; | |
286 | exit(5); | |
287 | } | |
288 | ||
7f6ddf58 | 289 | Int_t np=gAlice->GetEvent(event); |
cc80f89e | 290 | |
73042f01 | 291 | AliTPC *TPC=(AliTPC*)gAlice->GetDetector("TPC"); |
292 | Int_t ver = TPC->IsVersion(); | |
293 | cerr<<"TPC version "<<ver<<" has been found !\n"; | |
294 | ||
c2b0eaa4 | 295 | AliTPCParamSR *digp=(AliTPCParamSR*)file->Get("75x40_100x60_150x60"); |
73042f01 | 296 | if (!digp) { cerr<<"TPC parameters have not been found !\n"; exit(6); } |
297 | TPC->SetParam(digp); | |
298 | ||
024a7fe9 | 299 | |
300 | ||
73042f01 | 301 | Int_t nrow_up=digp->GetNRowUp(); |
302 | Int_t nrows=digp->GetNRowLow()+nrow_up; | |
303 | Int_t zero=digp->GetZeroSup(); | |
7f6ddf58 | 304 | Int_t gap=Int_t(0.125*nrows), shift=Int_t(0.5*gap); |
cc80f89e | 305 | Int_t good_number=Int_t(0.4*nrows); |
306 | ||
7f6ddf58 | 307 | Int_t *good=new Int_t[np]; |
308 | Int_t i; | |
309 | for (i=0; i<np; i++) good[i]=0; | |
310 | ||
311 | ||
312 | switch (ver) { | |
313 | case 1: | |
314 | { | |
315 | char cname[100]; sprintf(cname,"TreeC_TPC_%d",event); | |
316 | TFile *cf=TFile::Open("AliTPCclusters.root"); | |
317 | if (!cf->IsOpen()){cerr<<"Can't open AliTPCclusters.root !\n";exit(5);} | |
318 | AliTPCClustersArray *pca=new AliTPCClustersArray, &ca=*pca; | |
319 | ca.Setup(digp); | |
320 | ca.SetClusterType("AliTPCcluster"); | |
321 | ca.ConnectTree(cname); | |
322 | Int_t nrows=Int_t(ca.GetTree()->GetEntries()); | |
323 | for (Int_t n=0; n<nrows; n++) { | |
324 | AliSegmentID *s=ca.LoadEntry(n); | |
325 | Int_t sec,row; | |
326 | digp->AdjustSectorRow(s->GetID(),sec,row); | |
327 | AliTPCClustersRow &clrow = *ca.GetRow(sec,row); | |
328 | Int_t ncl=clrow.GetArray()->GetEntriesFast(); | |
329 | while (ncl--) { | |
330 | AliTPCcluster *c=(AliTPCcluster*)clrow[ncl]; | |
331 | Int_t lab=c->GetLabel(0); | |
332 | if (lab<0) continue; //noise cluster | |
333 | lab=TMath::Abs(lab); | |
334 | ||
335 | if (sec>=digp->GetNInnerSector()) | |
336 | if (row==nrow_up-1) good[lab]|=0x4000; | |
337 | if (sec>=digp->GetNInnerSector()) | |
338 | if (row==nrow_up-1-gap) good[lab]|=0x1000; | |
339 | ||
340 | if (sec>=digp->GetNInnerSector()) | |
341 | if (row==nrow_up-1-shift) good[lab]|=0x2000; | |
342 | if (sec>=digp->GetNInnerSector()) | |
343 | if (row==nrow_up-1-gap-shift) good[lab]|=0x800; | |
344 | ||
345 | good[lab]++; | |
346 | } | |
347 | ca.ClearRow(sec,row); | |
348 | } | |
349 | delete pca; | |
350 | cf->Close(); | |
351 | } | |
afc42102 | 352 | break; |
7f6ddf58 | 353 | case 2: |
354 | { | |
7a09f434 | 355 | char dname[100]; sprintf(dname,"TreeD_75x40_100x60_150x60_%d",event); |
7f6ddf58 | 356 | TTree *TD=(TTree*)gDirectory->Get(dname); |
357 | AliSimDigits da, *digits=&da; | |
358 | TD->GetBranch("Segment")->SetAddress(&digits); | |
359 | ||
360 | Int_t *count = new Int_t[np]; | |
361 | Int_t i; | |
362 | for (i=0; i<np; i++) count[i]=0; | |
363 | ||
364 | Int_t sectors_by_rows=(Int_t)TD->GetEntries(); | |
365 | for (i=0; i<sectors_by_rows; i++) { | |
366 | if (!TD->GetEvent(i)) continue; | |
367 | Int_t sec,row; | |
368 | digp->AdjustSectorRow(digits->GetID(),sec,row); | |
369 | cerr<<sec<<' '<<row<<" \r"; | |
370 | digits->First(); | |
371 | do { //Many thanks to J.Chudoba who noticed this | |
372 | Int_t it=digits->CurrentRow(), ip=digits->CurrentColumn(); | |
373 | Short_t dig = digits->GetDigit(it,ip); | |
374 | Int_t idx0=digits->GetTrackID(it,ip,0); | |
375 | Int_t idx1=digits->GetTrackID(it,ip,1); | |
376 | Int_t idx2=digits->GetTrackID(it,ip,2); | |
8ded1b7a | 377 | if (idx0>=0 && dig>=zero && idx0<np) count[idx0]+=1; |
378 | if (idx1>=0 && dig>=zero && idx1<np) count[idx1]+=1; | |
379 | if (idx2>=0 && dig>=zero && idx2<np) count[idx2]+=1; | |
afc42102 | 380 | } while (digits->Next()); |
7f6ddf58 | 381 | for (Int_t j=0; j<np; j++) { |
382 | if (count[j]>1) { | |
383 | if (sec>=digp->GetNInnerSector()) | |
384 | if (row==nrow_up-1 ) good[j]|=0x4000; | |
385 | if (sec>=digp->GetNInnerSector()) | |
386 | if (row==nrow_up-1-gap) good[j]|=0x1000; | |
387 | ||
388 | if (sec>=digp->GetNInnerSector()) | |
389 | if (row==nrow_up-1-shift) good[j]|=0x2000; | |
390 | if (sec>=digp->GetNInnerSector()) | |
391 | if (row==nrow_up-1-gap-shift) good[j]|=0x800; | |
392 | good[j]++; | |
393 | } | |
394 | count[j]=0; | |
395 | } | |
396 | } | |
397 | delete[] count; | |
398 | delete TD; //Thanks to Mariana Bondila | |
afc42102 | 399 | } |
7f6ddf58 | 400 | break; |
401 | default: | |
402 | cerr<<"Invalid TPC version !\n"; | |
403 | file->Close(); | |
404 | exit(7); | |
cc80f89e | 405 | } |
7f6ddf58 | 406 | |
407 | ||
408 | /** select tracks which are "good" enough **/ | |
409 | for (i=0; i<np; i++) { | |
410 | if ((good[i]&0x5000) != 0x5000) | |
411 | if ((good[i]&0x2800) != 0x2800) continue; | |
412 | if ((good[i]&0x7FF ) < good_number) continue; | |
413 | ||
414 | TParticle *p = (TParticle*)gAlice->Particle(i); | |
415 | ||
416 | if (p->Pt()<0.100) continue; | |
417 | if (TMath::Abs(p->Pz()/p->Pt())>0.999) continue; | |
418 | ||
419 | Int_t j=p->GetFirstMother(); | |
420 | if (j>=0) { | |
024a7fe9 | 421 | TParticle *pp = (TParticle*)gAlice->Particle(j); |
422 | if (pp->GetFirstMother()>=0) continue;//only one decay is allowed | |
423 | /* for cascade hyperons only | |
424 | Int_t jj=pp->GetFirstMother(); | |
425 | if (jj>=0) { | |
426 | TParticle *ppp = (TParticle*)gAlice->Particle(jj); | |
427 | if (ppp->GetFirstMother()>=0) continue;//two decays are allowed | |
428 | } | |
429 | */ | |
7f6ddf58 | 430 | } |
431 | ||
432 | gt[nt].lab=i; | |
433 | gt[nt].code=p->GetPdgCode(); | |
434 | gt[nt].px=0.; gt[nt].py=0.; gt[nt].pz=0.; | |
527abbe9 | 435 | gt[nt].x=0.; gt[nt].y=0.; gt[nt].z=0.; |
7f6ddf58 | 436 | nt++; |
437 | if (nt==max) {cerr<<"Too many good tracks !\n"; break;} | |
438 | cerr<<np-i<<" \r"; | |
439 | } | |
440 | ||
441 | /** check if there is also information at the entrance of the TPC **/ | |
442 | TTree *TH=gAlice->TreeH(); np=(Int_t)TH->GetEntries(); | |
443 | for (i=0; i<np; i++) { | |
444 | TPC->ResetHits(); | |
445 | TH->GetEvent(i); | |
446 | AliTPChit *phit = (AliTPChit*)TPC->FirstHit(-1); | |
447 | for ( ; phit; phit=(AliTPChit*)TPC->NextHit() ) { | |
448 | if (phit->fQ !=0. ) continue; | |
449 | ||
450 | Double_t px=phit->X(), py=phit->Y(), pz=phit->Z(); | |
451 | ||
452 | if ((phit=(AliTPChit*)TPC->NextHit())==0) break; | |
453 | if (phit->fQ != 0.) continue; | |
454 | ||
455 | Double_t x=phit->X(), y=phit->Y(), z=phit->Z(); | |
456 | if (TMath::Sqrt(x*x+y*y)>90.) continue; | |
457 | ||
458 | Int_t j, lab=phit->Track(); | |
459 | for (j=0; j<nt; j++) {if (gt[j].lab==lab) break;} | |
460 | if (j==nt) continue; | |
461 | ||
462 | // (px,py,pz) - in global coordinate system, (x,y,z) - in local ! | |
463 | gt[j].px=px; gt[j].py=py; gt[j].pz=pz; | |
464 | Float_t cs,sn; digp->AdjustCosSin(phit->fSector,cs,sn); | |
465 | gt[j].x = x*cs + y*sn; | |
466 | gt[j].y =-x*sn + y*cs; | |
467 | gt[j].z = z; | |
468 | } | |
469 | cerr<<np-i<<" \r"; | |
470 | } | |
471 | ||
472 | delete[] good; | |
473 | ||
be9c5115 | 474 | delete gAlice; gAlice=0; |
7f6ddf58 | 475 | |
73042f01 | 476 | file->Close(); |
cf98c13f | 477 | gBenchmark->Stop("AliTPCComparison"); |
478 | gBenchmark->Show("AliTPCComparison"); | |
cc80f89e | 479 | return nt; |
8c555625 | 480 | } |
481 | ||
73042f01 | 482 | |
483 |