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b5f2577c | 1 | ///////////////////////////////////////////////////////////////////////// |
2 | // This macro is a small example of a ROOT macro | |
3 | // illustrating how to read the hits in ACORDE, | |
4 | // fill some histograms and store it on a file | |
5 | // | |
6 | // Author: | |
7 | // | |
8 | // Eleazar Cuautle <ecuautle@nucleares.unam.mx> | |
9 | // | |
10 | // Also: | |
11 | // | |
12 | // Mario Rodriguez Cahuantzi <mrodrigu@mail.cern.ch> | |
13 | // | |
14 | ///////////////////////////////////////////////////////////////////////// | |
15 | ||
16 | void TestACORDEHits (const char *filename="galice.root",Int_t numberOfEvents=0){ | |
17 | // delete existing gAlice | |
18 | // Dynamically link some shared libs | |
19 | if (gClassTable->GetID("AliRun") < 0) | |
20 | { | |
21 | gROOT->LoadMacro("loadlibs.C"); | |
22 | loadlibs(); | |
23 | } | |
24 | if (gAlice) | |
25 | { | |
26 | //delete gAlice->GetRunLoader(); | |
27 | delete gAlice; | |
28 | gAlice = 0x0; | |
29 | } | |
30 | ||
31 | AliRunLoader *rl = AliRunLoader::Open("galice.root", | |
32 | AliConfig::GetDefaultEventFolderName(),"read"); | |
33 | if (!rl) | |
34 | { | |
35 | cerr<<"Can't load RunLoader from file! \n"; return 0x0; | |
36 | } | |
37 | ||
38 | rl->LoadgAlice(); | |
39 | gAlice = rl->GetAliRun(); | |
40 | if (!gAlice) | |
41 | { | |
42 | cerr << " AliRun object not found on file \n"; return 0x0; | |
43 | } | |
44 | rl->LoadHeader(); | |
45 | ||
46 | // Get the pointer to the ACORDE detector | |
47 | AliLoader *acordel = rl->GetLoader("ACORDELoader"); | |
48 | AliACORDE *ACORDE = (AliACORDE *) gAlice->GetDetector("ACORDE"); | |
49 | if (ACORDE == 0x0 || acordel == 0x0) { | |
50 | cerr << " Can not find ACORDE or ACORDELoader \n"; return 0x0; | |
51 | } | |
52 | //Determine how many events would you like to analyze | |
53 | if (numberOfEvents==0) numberOfEvents=(Int_t)(rl->GetNumberOfEvents()); | |
54 | ||
55 | //create histograms | |
56 | ||
57 | TH1F *fACORDEEnergy = new TH1F("fACORDEEnergy","Energy distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE); Energy (GeV)",1200,0,360); | |
58 | TH1F *fACORDEEnergyLoss = new TH1F("fACORDEEnergyLoss","Loss energy distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE);Energy loss (Gev)",100,0,0.030); | |
59 | TH1F *fACORDEAzimuth = new TH1F("fACORDEAzimuth","Azimuth angle distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE); Azimuth angle",360,-180,180); | |
60 | TH1F *fACORDEPolar = new TH1F("fACORDEPolar","Polar angle distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE); Polar angle",180,0,180); | |
61 | TH2F *fACORDExz = new TH2F("fACORDExz" ,"Distribution XZ of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE); X (cms); Z (cms) ",900,-850.,850.,1200,-500.,500.); | |
62 | TH2F *fACORDEAzimPol = new TH2F("fACORDEAzimPol" ,"Azimuth vs Polar angle distribution ",360,-180.,180.,180,0.,180.); | |
63 | TH1F *fACORDEPx = new TH1F("fACORDEPx" ,"P_{x} distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE);GeV/c;dN/dP_{x}",60,-120.,120.); | |
64 | TH1F *fACORDEPy = new TH1F("fACORDEPy" ,"P_{y} distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE);GeV/c;dN/dP_{y}",60,-120.,120.); | |
65 | TH1F *fACORDEPz = new TH1F("fACORDEPz" ,"P_{z} distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE);GeV/c;dN/dP_{z}",60,-120.,120.); | |
66 | TH1F *fACORDEPt = new TH1F("fACORDEPt" ,"P_{t} distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE);GeV/c;dN/dP_{t}",1200,0.,360.); | |
67 | TH2F *fELossAzimuth = new TH2F("fELossAzimuth","Dist. Azimuth Angle VS Energy Loss; Azimuth angle; Energy (GeV)",360,0,350,100,0,0.030); | |
68 | TH2F *fEnergyAzimuth = new TH2F("fEnergyAzimuth","Dist. Azimuth Angle VS Energy; Azimuth angle; Energy (GeV)",360,0,360,300,0,350); | |
69 | TH2F *fELossPolar = new TH2F("fELossPolar","Dist. Polar Angle VS Energy Loss; Polar angle; Energy (GeV)",180,0,180,100,0,0.030); | |
70 | TH2F *fEnergyPolar = new TH2F("fEnergyPolar","Dist. Polar Angle VS Energy; Polar angle; Energy (GeV)",180,0,180,300,0,350); | |
71 | ||
72 | //------------------------------------------------------------------// | |
73 | ||
74 | for (Int_t ievent=0; ievent<numberOfEvents; ievent++) { | |
75 | if ((ievent%10) == 0) printf ("Processing event %d \n", ievent); | |
76 | rl->GetEvent(ievent); | |
77 | ||
78 | // Get the pointer Hit tree | |
79 | acordel->LoadHits(); | |
80 | TTree *hitTree = acordel->TreeH(); | |
81 | ACORDE->SetTreeAddress(); | |
82 | if (!hitTree) { | |
83 | cout << " No TreeH found" << endl; return 0x0; //rc; | |
84 | } | |
85 | ||
86 | rl->LoadKinematics(); | |
87 | Int_t nTrack = (Int_t) hitTree->GetEntries(); | |
88 | // cout <<"<AliACORDEanalyzeHits> Found "<< nTrack <<" primary particles with hits \n"; | |
89 | ||
90 | // Start loop on tracks in the hits containers | |
91 | for(Int_t iTrack=0; iTrack<nTrack;iTrack++){ | |
92 | ACORDE->ResetHits(); | |
93 | hitTree->GetEvent(iTrack); | |
94 | if(ACORDE) { | |
95 | for(acordeHit=(AliACORDEhit*)ACORDE->FirstHit(-1);acordeHit; | |
96 | acordeHit=(AliACORDEhit*)ACORDE->NextHit()) { | |
97 | fACORDEEnergy->Fill(acordeHit->Energy()); | |
98 | fACORDEEnergyLoss->Fill(acordeHit->Eloss()); | |
99 | fACORDEAzimuth->Fill(acordeHit->AzimuthAngle()); | |
100 | fACORDEPolar->Fill(acordeHit->PolarAngle()); | |
101 | fACORDExz->Fill(acordeHit->X(),acordeHit->Z()); | |
102 | fELossAzimuth->Fill((Float_t)(acordeHit->AzimuthAngle()),(Float_t)(acordeHit->Eloss())); | |
103 | fACORDEPx->Fill( (Float_t)(acordeHit->Px())); | |
104 | fACORDEPy->Fill( (Float_t)(acordeHit->Py())); | |
105 | fACORDEPz->Fill( (Float_t)(acordeHit->Pz())); | |
106 | fACORDEPt->Fill( TMath::Sqrt( (acordeHit->Px())*(acordeHit->Px())+ | |
107 | (acordeHit->Py())*(acordeHit->Py())) ); | |
108 | fACORDEAzimPol->Fill( (Float_t)(acordeHit->AzimuthAngle()), | |
109 | (Float_t)(acordeHit->PolarAngle())); | |
110 | fEnergyAzimuth->Fill(acordeHit->Energy(),acordeHit->AzimuthAngle()); | |
111 | fEnergyPolar->Fill(acordeHit->Energy(),acordeHit->PolarAngle()); | |
112 | fELossPolar->Fill(acordeHit->PolarAngle(),acordeHit->Eloss()); | |
113 | //cout << "Muon triggered by ACORDE "<<endl; | |
114 | //cout << "Energy: "<<acordeHit->Energy()<<" EnergyLoss: "<<acordeHit->Eloss()<<" Polar angle: "<<acordeHit->PolarAngle()<<" Azimuth angle: "<<acordeHit->AzimuthAngle()<<endl; | |
115 | ||
116 | } // end for acordeHits | |
117 | } // end if ACORDE | |
118 | } // end for iTrack | |
119 | } | |
120 | ||
121 | // Put the histograms in a TCanvas | |
122 | ||
123 | TCanvas *c1 = new TCanvas("c1","ACORDE Hits distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE)"); | |
124 | c1->Divide(2,1); | |
125 | ||
126 | c1->cd(1)->SetLogy(); | |
127 | fACORDEEnergy->SetMarkerStyle(kFullCircle); | |
128 | fACORDEEnergy->SetMarkerSize(0.7); | |
129 | fACORDEEnergy->Draw("E"); | |
130 | ||
131 | c1->cd(2)->SetLogy(); | |
132 | fACORDEEnergyLoss->SetMarkerStyle(kFullCircle); | |
133 | fACORDEEnergyLoss->SetMarkerSize(0.7); | |
134 | fACORDEEnergyLoss->Draw("E"); | |
135 | ||
136 | c1->Draw(); | |
137 | ||
138 | TCanvas *c2 = new TCanvas("c2","ACORDE Hits distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE)"); | |
139 | c2->Divide(2,2); | |
140 | c2->cd(1); | |
141 | fACORDEAzimuth->Draw(); | |
142 | ||
143 | c2->cd(2); | |
144 | fACORDEPolar->Draw(); | |
145 | ||
146 | c2->cd(3); | |
147 | gStyle->SetPalette(1); | |
148 | fACORDExz->DrawCopy("colz"); | |
149 | ||
150 | c2->cd(4); | |
151 | gStyle->SetPalette(1); | |
152 | fACORDEAzimPol->DrawCopy("colz"); | |
153 | ||
154 | c2->Draw(); | |
155 | ||
156 | TCanvas *c3 = new TCanvas("c3","ACORDE Hits distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE)"); | |
157 | c3->Divide(2,2); | |
158 | ||
159 | c3->cd(1)->SetLogy(); | |
160 | fACORDEPx->SetMarkerStyle(kFullCircle); | |
161 | fACORDEPx->SetMarkerSize(0.7); | |
162 | fACORDEPx->Draw("E"); | |
163 | ||
164 | c3->cd(2)->SetLogy(); | |
165 | fACORDEPy->SetMarkerStyle(kFullCircle); | |
166 | fACORDEPy->SetMarkerSize(0.7); | |
167 | fACORDEPy->Draw("E"); | |
168 | ||
169 | c3->cd(3)->SetLogy(); | |
170 | fACORDEPz->SetMarkerStyle(kFullCircle); | |
171 | fACORDEPz->SetMarkerSize(0.7); | |
172 | fACORDEPz->Draw("E"); | |
173 | ||
174 | c3->cd(4)->SetLogy(); | |
175 | fACORDEPt->SetMarkerStyle(kFullCircle); | |
176 | fACORDEPt->SetMarkerSize(0.7); | |
177 | fACORDEPt->Draw("E"); | |
178 | ||
179 | c3->Draw(); | |
180 | ||
181 | TCanvas *c4 = new TCanvas("c4","ACORDE Hits distribution of muons generated by AliGenCosmicParam at z = 900 cms (Just above ACORDE)"); | |
182 | c4->Divide(2,2); | |
183 | ||
184 | c4->cd(1); | |
185 | gStyle->SetPalette(1); | |
186 | fEnergyPolar->DrawCopy("colz"); | |
187 | ||
188 | c4->cd(2); | |
189 | gStyle->SetPalette(1); | |
190 | fEnergyAzimuth->DrawCopy("colz"); | |
191 | ||
192 | c4->cd(3); | |
193 | gStyle->SetPalette(1); | |
194 | fELossPolar->DrawCopy("colz"); | |
195 | ||
196 | c4->cd(4); | |
197 | gStyle->SetPalette(1); | |
198 | fELossAzimuth->DrawCopy("colz"); | |
199 | ||
200 | c4->Draw(); | |
201 | ||
202 | ||
203 | // save histos in a root file | |
204 | TFile *fout = new TFile("ACORDE_hits.root","RECREATE"); | |
205 | fACORDEEnergy->Write(); | |
206 | fACORDEEnergyLoss->Write(); | |
207 | fACORDEAzimuth->Write(); | |
208 | fACORDEPolar->Write(); | |
209 | fACORDExz->Write(); | |
210 | fELossAzimuth->Write(); | |
211 | fACORDEPx->Write(); | |
212 | fACORDEPy->Write(); | |
213 | fACORDEPz->Write(); | |
214 | fACORDEPt->Write(); | |
215 | fACORDEAzimPol->Write(); | |
216 | c1->Write(); | |
217 | c2->Write(); | |
218 | c3->Write(); | |
219 | c4->Write(); | |
220 | } |