3 void ITSHitsToDigits (Int_t evNumber1=0,Int_t evNumber2=0,Int_t nsignal =25, Int_t size=-1)
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");
23 // Connect the Root Galice file containing Geometry, Kine and Hits
25 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
26 printf("file %p\n",file);
27 if (file) file->Close();
28 if (!file) file = new TFile("galice.root","UPDATE");
31 printf ("I'm after Map \n");
33 // Get AliRun object from file or create it if not on file
36 gAlice = (AliRun*)file->Get("gAlice");
37 if (gAlice) printf("AliRun object found on file\n");
38 if (!gAlice) gAlice = new AliRun("gAlice","Alice test program");
40 printf ("I'm after gAlice \n");
42 AliITS *ITS = (AliITS*) gAlice->GetModule("ITS");
46 // Set the simulation models
48 AliITSgeom *geom = ITS->GetITSgeom();
51 // SDD compression param: 2 fDecrease, 2fTmin, 2fTmax or disable, 2 fTolerance
52 Float_t baseline = 10.;
55 //Float_t fCutAmp = baseline + 2.*noise;
57 Float_t maxadc = res1->MaxAdc();
58 Float_t topValue = res1->MagicValue();
59 Float_t norm = maxadc/topValue;
61 Float_t fCutAmp = baseline + 2.*noise;
64 Int_t cp[8]={0,0,fCutAmp,fCutAmp,0,0,0,0}; //1D
67 AliITSDetType *iDetType=ITS->DetType(1);
68 AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel();
70 res1=new AliITSresponseSDD();
71 ITS->SetResponseModel(1,res1);
73 //res1->SetZeroSupp("2D");
74 res1->SetZeroSupp("1D");
75 res1->SetNoiseParam(noise,baseline);
76 res1->SetDo10to8(kTRUE);
78 res1->SetCompressParam(cp);
79 res1->SetDiffCoeff(3.6,40.);
80 res1->SetMagicValue(96.95);
82 AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->GetSegmentationModel();
84 seg1 = new AliITSsegmentationSDD(geom,res1);
85 ITS->SetSegmentationModel(1,seg1);
88 AliITSsimulationSDD *sim1=new AliITSsimulationSDD(seg1,res1);
90 sim1->SetCheckNoise(kFALSE);
92 ITS->SetSimulationModel(1,sim1);
98 AliITSDetType *iDetType=ITS->DetType(0);
99 AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType->GetSegmentationModel();
100 AliITSresponseSPD *res0 = (AliITSresponseSPD*)iDetType->GetResponseModel();
101 AliITSsimulationSPD *sim0=new AliITSsimulationSPD(seg0,res0);
102 ITS->SetSimulationModel(0,sim0);
104 //printf("SPD dimensions %f %f \n",seg0->Dx(),seg0->Dz());
105 //printf("SPD npixels %d %d \n",seg0->Npz(),seg0->Npx());
106 //printf("SPD pitches %d %d \n",seg0->Dpz(0),seg0->Dpx(0));
112 AliITSDetType *iDetType=ITS->DetType(2);
113 AliITSsegmentationSSD *seg2=(AliITSsegmentationSSD*)iDetType->GetSegmentationModel();
114 AliITSresponseSSD *res2 = (AliITSresponseSSD*)iDetType->GetResponseModel();
115 res2->SetSigmaSpread(3.,2.);
116 AliITSsimulationSSD *sim2=new AliITSsimulationSSD(seg2,res2);
117 ITS->SetSimulationModel(2,sim2);
126 for (Int_t nev=evNumber1; nev<= evNumber2; nev++) {
127 cout << "nev " <<nev<<endl;
128 Int_t nparticles = gAlice->GetEvent(nev);
129 cout << "nparticles " <<nparticles<<endl;
130 if (nev < evNumber1) continue;
131 if (nparticles <= 0) return;
134 if(nsignal) nbgr_ev=Int_t(nev/nsignal);
135 ITS->HitsToDigits(nev,nbgr_ev,size," ","All"," ");