3 void ITSrecpoints (Int_t evNumber1=0,Int_t evNumber2=0)
5 /////////////////////////////////////////////////////////////////////////
6 // This macro is a small example of a ROOT macro
7 // illustrating how to read the output of GALICE
8 // and do some analysis.
10 /////////////////////////////////////////////////////////////////////////
12 // Dynamically link some shared libs
14 if (gClassTable->GetID("AliRun") < 0) {
15 gROOT->LoadMacro("loadlibs.C");
20 // Connect the Root Galice file containing Geometry, Kine and Hits
22 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
23 printf("file %p\n",file);
24 if (file) file->Close();
25 file = new TFile("galice.root","UPDATE");
28 printf ("I'm after Map \n");
30 // Get AliRun object from file or create it if not on file
33 gAlice = (AliRun*)file->Get("gAlice");
34 if (gAlice) printf("AliRun object found on file\n");
35 if (!gAlice) gAlice = new AliRun("gAlice","Alice test program");
37 printf ("I'm after gAlice \n");
39 AliITS *ITS = (AliITS*) gAlice->GetModule("ITS");
47 AliITSgeom *geom = ITS->GetITSgeom();
51 AliITSDetType *iDetType=ITS->DetType(0);
52 AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType->GetSegmentationModel();
53 TClonesArray *dig0 = ITS->DigitsAddress(0);
54 TClonesArray *recp0 = ITS->ClustersAddress(0);
55 AliITSClusterFinderSPD *rec0=new AliITSClusterFinderSPD(seg0,dig0,recp0);
56 ITS->SetReconstructionModel(0,rec0);
58 printf("SPD dimensions %f %f \n",seg0->Dx(),seg0->Dz());
59 printf("SPD npixels %d %d \n",seg0->Npz(),seg0->Npx());
64 AliITSDetType *iDetType=ITS->DetType(1);
65 AliITSgeom *geom = ITS->GetITSgeom();
67 AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->GetSegmentationModel();
68 if (!seg1) seg1 = new AliITSsegmentationSDD(geom);
69 AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel();
70 if (!res1) res1=new AliITSresponseSDD();
71 TClonesArray *dig1 = ITS->DigitsAddress(1);
72 TClonesArray *recp1 = ITS->ClustersAddress(1);
73 AliITSClusterFinderSDD *rec1=new AliITSClusterFinderSDD(seg1,res1,dig1,recp1);
74 ITS->SetReconstructionModel(1,rec1);
80 AliITSDetType *iDetType=ITS->DetType(2);
81 AliITSsegmentationSSD *seg2=(AliITSsegmentationSSD*)iDetType->GetSegmentationModel();
82 TClonesArray *dig2 = ITS->DigitsAddress(2);
83 TClonesArray *recp2 = ITS->ClustersAddress(2);
84 AliITSClusterFinderSSD *rec2=new AliITSClusterFinderSSD(seg2,dig2,recp2);
85 ITS->SetReconstructionModel(2,rec2);
87 printf("SSD dimensions %f %f \n",seg2->Dx(),seg2->Dy());
88 printf("SSD nstrips %d \n",seg2->Npz(),seg2->Npx());
91 for (int nev=evNumber1; nev<= evNumber2; nev++) {
92 Int_t nparticles = gAlice->GetEvent(nev);
93 cout << "nev " <<nev<<endl;
94 cout << "nparticles " <<nparticles<<endl;
95 if (nev < evNumber1) continue;
96 if (nparticles <= 0) return;
98 TTree *TD = gAlice->TreeD();
99 Int_t nent=TD->GetEntries();
100 printf("Found %d entries in the tree (must be one per module per event!)\n",nent);
101 Int_t nmodules=geom->GetLastSSD();
102 //printf("nmodules %d\n",nmodules);
103 //Int_t last_entry=nent-(nmodules+1);
105 ITS->DigitsToRecPoints(nev,last_entry,"All");