Make the macro compatible with the new AliRun
[u/mrichter/AliRoot.git] / ITS / ITSDigitsToClusters.C
CommitLineData
e8189707 1#include "iostream.h"
2
3void ITSDigitsToClusters (Int_t evNumber1=0,Int_t evNumber2=0)
4{
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.
9//
10/////////////////////////////////////////////////////////////////////////
11
12// Dynamically link some shared libs
13
14 if (gClassTable->GetID("AliRun") < 0) {
15 gROOT->LoadMacro("loadlibs.C");
16 loadlibs();
17 } else {
18 delete gAlice;
19 gAlice=0;
20 }
21
22
23// Connect the Root Galice file containing Geometry, Kine and Hits
24
25 TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject("galice.root");
26 printf("file %p\n",file);
27 if (file) file->Close();
28 file = new TFile("galice.root","UPDATE");
29 file->ls();
30
31 printf ("I'm after Map \n");
32
33// Get AliRun object from file or create it if not on file
34
35 if (!gAlice) {
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");
39 }
40 printf ("I'm after gAlice \n");
41
42 AliITS *ITS = (AliITS*) gAlice->GetModule("ITS");
43 if (!ITS) return;
44
45 AliITSgeom *geom = ITS->GetITSgeom();
46
47
90dea86a 48 // NOTE: if you foresee to have (in segmentation or response) parameter
49 // values other than the default ones, and these values are used not only in
50 // simulation but in cluster finder as well, please set them via your
51 // local Config.C - the streamer will take care of writing the correct
52 // info and you'll no longer be obliged to set them again for your cluster
53 // finder as it's done in this macro (ugly and impractical, no? )
54
55
56
e8189707 57 // Set the models for cluster finding
58
59 // SPD
60
a939f834 61
62
63 ITS->MakeTreeC();
64 Int_t nparticles=gAlice->GetEvent(0);
65
e8189707 66 AliITSDetType *iDetType=ITS->DetType(0);
67 AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType->GetSegmentationModel();
68 TClonesArray *dig0 = ITS->DigitsAddress(0);
69 TClonesArray *recp0 = ITS->ClustersAddress(0);
70 AliITSClusterFinderSPD *rec0=new AliITSClusterFinderSPD(seg0,dig0,recp0);
71 ITS->SetReconstructionModel(0,rec0);
72 // test
a939f834 73 printf("SPD dimensions %f %f \n",seg0->Dx(),seg0->Dz());
74 printf("SPD npixels %d %d \n",seg0->Npz(),seg0->Npx());
e8189707 75
76
77 // SDD
78
9c712bc6 79 Float_t baseline = 10.;
80 Float_t noise = 1.67;
90dea86a 81 Float_t thres = baseline+3*noise;
9c712bc6 82 printf("thresh %d\n",thres);
83
e8189707 84 AliITSDetType *iDetType=ITS->DetType(1);
85 AliITSgeom *geom = ITS->GetITSgeom();
86
87 AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->GetSegmentationModel();
88 if (!seg1) seg1 = new AliITSsegmentationSDD(geom);
89 AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel();
90 if (!res1) res1=new AliITSresponseSDD();
90dea86a 91 res1->SetMagicValue(900.);
6bfd27fa 92 Float_t magic = res1->MagicValue();
93 Float_t top = res1->MaxAdc();
94 thres *= top/magic;
90dea86a 95 res1->SetNoiseParam(noise,baseline);
9c712bc6 96 Float_t n,b;
97 res1->GetNoiseParam(n,b);
98 printf("SDD: noise baseline %f %f zs option %s data type %s\n",n,b,res1->ZeroSuppOption(),res1->DataType());
99 printf("SDD: DriftSpeed %f TopValue %f\n",res1->DriftSpeed(),res1->MagicValue());
100 Float_t dif0,dif1;
101 res1->DiffCoeff(dif0,dif1);
102 printf("SDD: dif0 %f dif1 %f\n",dif0,dif1);
e8189707 103 TClonesArray *dig1 = ITS->DigitsAddress(1);
104 TClonesArray *recp1 = ITS->ClustersAddress(1);
105 AliITSClusterFinderSDD *rec1=new AliITSClusterFinderSDD(seg1,res1,dig1,recp1);
9c712bc6 106 rec1->SetMinNCells(6);
107 rec1->SetTimeCorr(70.);
90dea86a 108 rec1->SetCutAmplitude((int)thres);
e8189707 109 ITS->SetReconstructionModel(1,rec1);
110
e8189707 111 // SSD
112
113 AliITSDetType *iDetType=ITS->DetType(2);
114 AliITSsegmentationSSD *seg2=(AliITSsegmentationSSD*)iDetType->GetSegmentationModel();
115 TClonesArray *dig2 = ITS->DigitsAddress(2);
a939f834 116 AliITSClusterFinderSSD *rec2=new AliITSClusterFinderSSD(seg2,dig2);
e8189707 117 ITS->SetReconstructionModel(2,rec2);
118 // test
9c712bc6 119 //printf("SSD dimensions %f %f \n",seg2->Dx(),seg2->Dz());
120 //printf("SSD nstrips %d %d \n",seg2->Npz(),seg2->Npx());
e8189707 121
122
123
124//
125// Event Loop
126//
127
128 for (int nev=evNumber1; nev<= evNumber2; nev++) {
a939f834 129 if(nev>0) {
130 nparticles = gAlice->GetEvent(nev);
131 }
e8189707 132 cout << "nev " <<nev<<endl;
133 cout << "nparticles " <<nparticles<<endl;
134 if (nev < evNumber1) continue;
135 if (nparticles <= 0) return;
136
137 TTree *TD = gAlice->TreeD();
138 Int_t nent=TD->GetEntries();
139 printf("Found %d entries in the tree (must be one per module per event!)\n",nent);
140 //Int_t nmodules=geom->GetLastSSD();
a939f834 141 //Int_t last_entry=nent-nmodules;
142 //Int_t last_entry=1;
143 Int_t last_entry=0;
e8189707 144 ITS->DigitsToRecPoints(nev,last_entry,"All");
145 } // event loop
146
9c712bc6 147 delete rec0;
148 delete rec1;
149 delete rec2;
150
e8189707 151 file->Close();
152}
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