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1 | #include "iostream.h" | |
2 | ||
3 | void 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 | ||
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 | ||
57 | // Set the models for cluster finding | |
58 | ||
59 | // SPD | |
60 | ||
61 | ITS->MakeTreeC(); | |
62 | Int_t nparticles=gAlice->GetEvent(0); | |
63 | ||
64 | ||
65 | AliITSDetType *iDetType=ITS->DetType(0); | |
66 | AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType->GetSegmentationModel(); | |
67 | TClonesArray *dig0 = ITS->DigitsAddress(0); | |
68 | TClonesArray *recp0 = ITS->ClustersAddress(0); | |
69 | AliITSClusterFinderSPD *rec0=new AliITSClusterFinderSPD(seg0,dig0,recp0); | |
70 | ITS->SetReconstructionModel(0,rec0); | |
71 | // test | |
72 | //printf("SPD dimensions %f %f \n",seg0->Dx(),seg0->Dz()); | |
73 | //printf("SPD npixels %d %d \n",seg0->Npz(),seg0->Npx()); | |
74 | ||
75 | ||
76 | // SDD | |
77 | ||
78 | AliITSDetType *iDetType=ITS->DetType(1); | |
79 | AliITSgeom *geom = ITS->GetITSgeom(); | |
80 | ||
81 | AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->GetSegmentationModel(); | |
82 | if (!seg1) seg1 = new AliITSsegmentationSDD(geom); | |
83 | AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel(); | |
84 | if (!res1) res1=new AliITSresponseSDD(); | |
85 | ||
86 | Float_t baseline,noise; | |
87 | res1->GetNoiseParam(noise,baseline); | |
88 | Float_t noise_after_el = res1->GetNoiseAfterElectronics(); | |
89 | Float_t thres = baseline; | |
90 | thres += (4.*noise_after_el); // TB // (4.*noise_after_el); | |
91 | printf("thres %f\n",thres); | |
92 | res1->Print(); | |
93 | ||
94 | TClonesArray *dig1 = ITS->DigitsAddress(1); | |
95 | TClonesArray *recp1 = ITS->ClustersAddress(1); | |
96 | AliITSClusterFinderSDD *rec1=new AliITSClusterFinderSDD(seg1,res1,dig1,recp1); | |
97 | rec1->SetCutAmplitude((int)thres); | |
98 | ITS->SetReconstructionModel(1,rec1); | |
99 | rec1->Print(); | |
100 | ||
101 | // SSD | |
102 | ||
103 | AliITSDetType *iDetType=ITS->DetType(2); | |
104 | AliITSsegmentationSSD *seg2=(AliITSsegmentationSSD*)iDetType->GetSegmentationModel(); | |
105 | TClonesArray *dig2 = ITS->DigitsAddress(2); | |
106 | AliITSClusterFinderSSD *rec2=new AliITSClusterFinderSSD(seg2,dig2); | |
107 | ITS->SetReconstructionModel(2,rec2); | |
108 | // test | |
109 | //printf("SSD dimensions %f %f \n",seg2->Dx(),seg2->Dz()); | |
110 | //printf("SSD nstrips %d %d \n",seg2->Npz(),seg2->Npx()); | |
111 | ||
112 | ||
113 | ||
114 | // | |
115 | // Event Loop | |
116 | // | |
117 | ||
118 | cout << "Looking for clusters...\n"; | |
119 | ||
120 | TStopwatch timer; | |
121 | ||
122 | if(!gAlice->TreeR()) gAlice->MakeTree("R"); | |
123 | //make branch | |
124 | ITS->MakeBranch("R"); | |
125 | ||
126 | for (int nev=evNumber1; nev<= evNumber2; nev++) { | |
127 | if(nev>0) { | |
128 | nparticles = gAlice->GetEvent(nev); | |
129 | gAlice->SetEvent(nev); | |
130 | if(!gAlice->TreeR()) gAlice-> MakeTree("R"); | |
131 | ITS->MakeBranch("R"); | |
132 | } | |
133 | cout << "nev " <<nev<<endl; | |
134 | cout << "nparticles " <<nparticles<<endl; | |
135 | if (nev < evNumber1) continue; | |
136 | if (nparticles <= 0) return; | |
137 | ||
138 | Int_t last_entry=0; | |
139 | timer.Start(); | |
140 | ITS->DigitsToRecPoints(nev,last_entry,"All"); | |
141 | //ITS->DigitsToRecPoints(nev,last_entry,"SPD"); | |
142 | timer.Stop(); timer.Print(); | |
143 | } // event loop | |
144 | ||
145 | delete rec0; | |
146 | delete rec1; | |
147 | delete rec2; | |
148 | ||
149 | file->Close(); | |
150 | } |