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Commit | Line | Data |
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8e766c6d | 1 | void RICHoccupancy (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 | ||
11 | // Dynamically link some shared libs | |
29fa09ab | 12 | |
13 | if (gClassTable->GetID("AliRun") < 0) { | |
14 | gROOT->LoadMacro("loadlibs.C"); | |
15 | loadlibs(); | |
16 | } | |
17 | else { | |
18 | //delete gAlice; | |
19 | gAlice = 0; | |
20 | } | |
21 | ||
22 | gAlice=0; | |
23 | ||
24 | // Connect the Root Galice file containing Geometry, Kine and Hits | |
25 | ||
26 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root"); | |
27 | if (!file) file = new TFile("galice.root","UPDATE"); | |
28 | ||
29 | // Get AliRun object from file or create it if not on file | |
30 | ||
31 | if (!gAlice) { | |
32 | gAlice = (AliRun*)file->Get("gAlice"); | |
33 | if (gAlice) printf("AliRun object found on file\n"); | |
34 | if (!gAlice) gAlice = new AliRun("gAlice","Alice test program"); | |
35 | } | |
36 | else { | |
37 | delete gAlice; | |
38 | gAlice = (AliRun*)file->Get("gAlice"); | |
39 | if (gAlice) printf("AliRun object found on file\n"); | |
40 | if (!gAlice) gAlice = new AliRun("gAlice","Alice test program"); | |
41 | } | |
42 | ||
8e766c6d | 43 | |
44 | // Start loop over events | |
45 | ||
46 | Float_t occ[7]; | |
47 | Float_t sum=0; | |
48 | Float_t mean=0; | |
49 | ||
50 | for (int nev=0; nev<= evNumber2; nev++) { | |
51 | Int_t nparticles = gAlice->GetEvent(nev); | |
52 | ||
53 | ||
54 | printf ("Number of Events : %d\n",nev); | |
55 | printf ("Number of particles: %d\n\n",nparticles); | |
56 | //if (nev < evNumber1) continue; | |
57 | //if (nparticles <= 0) return; | |
58 | ||
59 | // Get pointers to RICH detector and Hits containers | |
60 | ||
61 | AliRICH *RICH =(AliRICH*) gAlice->GetModule("RICH"); | |
62 | Int_t nent=(Int_t)gAlice->TreeD()->GetEntries(); | |
64a632a2 | 63 | gAlice->TreeD()->GetEvent(0); |
8e766c6d | 64 | |
65 | for (Int_t ich=0;ich<7;ich++) | |
66 | { | |
67 | TClonesArray *Digits = RICH->DigitsAddress(ich); // Raw clusters branch | |
68 | //printf ("Digits:%p",Digits); | |
69 | Int_t ndigits = Digits->GetEntriesFast(); | |
64a632a2 | 70 | occ[ich] = Float_t(ndigits)/(160*144); |
71 | sum += Float_t(ndigits)/(160*144); | |
8e766c6d | 72 | printf ("Occupancy in chamber %d: %f, generated by %d digits\n",ich,occ[ich],ndigits); |
73 | } | |
74 | mean = sum/7; | |
75 | printf("\nMean occupancy: %f\n",mean); | |
76 | } | |
77 | } | |
78 |