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a897a37a | 1 | void MUONtestabso (Int_t evNumber1=0,Int_t evNumber2=0) |
2 | { | |
3 | ///////////////////////////////////////////////////////////////////////// | |
4 | // This macro is a small example of a ROOT macro | |
5 | // illustrating how to read the output of GALICE | |
6 | // and do some analysis. | |
7 | // | |
8 | ///////////////////////////////////////////////////////////////////////// | |
9 | ||
10 | // Dynamically link some shared libs | |
11 | ||
12 | if (gClassTable->GetID("AliRun") < 0) { | |
13 | gROOT->LoadMacro("loadlibs.C"); | |
14 | loadlibs(); | |
15 | } | |
16 | ||
17 | // Connect the Root Galice file containing Geometry, Kine and Hits | |
18 | ||
19 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root"); | |
20 | ||
21 | ||
22 | if (!file) { | |
23 | printf("\n Creating galice.root \n"); | |
24 | file = new TFile("galice.root"); | |
25 | } else { | |
26 | printf("\n galice.root found in file list"); | |
27 | } | |
28 | file->ls(); | |
29 | ||
30 | // Get AliRun object from file or create it if not on file | |
31 | if (!gAlice) { | |
32 | gAlice = (AliRun*)(file->Get("gAlice")); | |
33 | if (gAlice) printf("AliRun object found on file\n"); | |
34 | if (!gAlice) { | |
35 | printf("\n create new gAlice object"); | |
36 | gAlice = new AliRun("gAlice","Alice test program"); | |
37 | } | |
38 | } | |
39 | ||
40 | printf ("I'm after gAlice \n"); | |
41 | ||
42 | // Create some histograms | |
43 | ||
44 | ||
45 | TH1F *zv = new TH1F("zv","z vertex" | |
46 | ,100,450..,506.); | |
47 | TH1F *xv = new TH1F("xv","x vertex" | |
48 | ,140,-70.,70.); | |
49 | TH1F *yv = new TH1F("yv","y vertex" | |
50 | ,140,-70.,70.); | |
51 | ||
52 | TH1F *ip = new TH1F("ip","geant part" | |
53 | ,50,0.,10.); | |
54 | TH2F *rzv = new TH2F("rzv","R-z vert" | |
55 | ,100,500.,506.,50,0.,50.); | |
56 | ||
57 | AliMUONchamber* iChamber; | |
58 | // | |
59 | // Loop over events | |
60 | // | |
61 | Int_t Nh=0; | |
62 | Int_t Nh1=0; | |
63 | for (Int_t nev=0; nev<= evNumber2; nev++) { | |
64 | cout << "nev " << nev <<endl; | |
65 | Int_t nparticles = gAlice->GetEvent(nev); | |
66 | cout << "nparticles " << nparticles <<endl; | |
67 | if (nev < evNumber1) continue; | |
68 | if (nparticles <= 0) return; | |
69 | ||
70 | AliMUON *MUON = (AliMUON*) gAlice->GetModule("MUON"); | |
71 | printf("\n nev %d \n ", nev); | |
72 | ||
73 | TTree *TH = gAlice->TreeH(); | |
74 | Int_t ntracks = TH->GetEntries(); | |
75 | // | |
76 | // Loop over tracks | |
77 | // | |
78 | for (Int_t track=0; track<ntracks;track++) { | |
79 | ||
80 | gAlice->ResetHits(); | |
81 | Int_t nbytes += TH->GetEvent(track); | |
82 | if (MUON) { | |
83 | for(AliMUONhit* mHit=(AliMUONhit*)MUON->FirstHit(-1); | |
84 | mHit; | |
85 | mHit=(AliMUONhit*)MUON->NextHit()) | |
86 | { | |
87 | Int_t nch = mHit->fChamber; // chamber number | |
88 | Float_t x = mHit->fX; // x-pos of hit | |
89 | Float_t y = mHit->fY; // y-pos | |
90 | Float_t z = mHit->fZ; // y-pos | |
91 | ||
92 | if (nch > 1) continue; | |
93 | ||
94 | Int_t ipart = mHit->fParticle; | |
95 | TClonesArray *fPartArray = gAlice->Particles(); | |
96 | TParticle *Part; | |
97 | Int_t ftrack = mHit->fTrack; | |
98 | Part = (TParticle*) fPartArray->UncheckedAt(ftrack); | |
99 | //Int_t id = ((TParticle*) fPartArray->UncheckedAt(ftrack))->GetPdgCode(); | |
100 | ip->Fill((float)ipart); | |
101 | ||
102 | if (ipart > 3) continue; | |
103 | ||
104 | Float_t xvert = Part->Vx(); // vertex | |
105 | Float_t yvert = Part->Vy(); // vertex | |
106 | Float_t zvert = Part->Vz(); // z vertex | |
107 | xv->Fill(xvert); | |
108 | yv->Fill(yvert); | |
109 | zv->Fill(zvert); | |
110 | Float_t rvert=TMath::Sqrt(xvert*xvert+yvert*yvert); | |
111 | rzv->Fill(zvert,rvert); | |
112 | ||
113 | } | |
114 | ||
115 | } | |
116 | } | |
117 | } | |
118 | ||
119 | ||
120 | //Create a canvas, set the view range, show histograms | |
121 | TCanvas *c1 = new TCanvas("c1","Vetices from electrons and positrons",400,10,600,700); | |
122 | pad11 = new TPad("pad11"," ",0.01,0.51,0.49,0.99); | |
123 | pad12 = new TPad("pad12"," ",0.51,0.51,0.99,0.99); | |
124 | pad13 = new TPad("pad13"," ",0.01,0.01,0.49,0.49); | |
125 | pad14 = new TPad("pad14"," ",0.51,0.01,0.99,0.49); | |
126 | pad11->SetFillColor(11); | |
127 | pad12->SetFillColor(11); | |
128 | pad13->SetFillColor(11); | |
129 | pad14->SetFillColor(11); | |
130 | pad11->Draw(); | |
131 | pad12->Draw(); | |
132 | pad13->Draw(); | |
133 | pad14->Draw(); | |
134 | ||
135 | pad11->cd(); | |
136 | ip->SetFillColor(42); | |
137 | ip->SetXTitle("ipart"); | |
138 | ip->Draw(); | |
139 | ||
140 | pad12->cd(); | |
141 | xv->SetFillColor(42); | |
142 | xv->SetXTitle("xvert"); | |
143 | xv->Draw(); | |
144 | ||
145 | pad13->cd(); | |
146 | yv->SetFillColor(42); | |
147 | yv->SetXTitle("yvert"); | |
148 | yv->Draw(); | |
149 | ||
150 | pad14->cd(); | |
151 | zv->SetFillColor(42); | |
152 | zv->SetXTitle("zvert"); | |
153 | zv->Draw(); | |
154 | ||
155 | TCanvas *c2 = new TCanvas("c2","R-Z vertex distribution",400,10,600,700); | |
156 | rzv->SetXTitle("zvert"); | |
157 | rzv->SetYTitle("rvert"); | |
158 | rzv->Draw(); | |
159 | } |