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e8189707 | 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 | ||
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 | ||
e53d0fac | 128 | cout << "Looking for clusters...\n"; |
129 | ||
130 | TStopwatch timer; | |
131 | ||
7b97c7b3 | 132 | if(!gAlice->TreeR()) gAlice->MakeTree("R"); |
133 | //make branch | |
134 | ITS->MakeBranch("R"); | |
135 | ||
e8189707 | 136 | for (int nev=evNumber1; nev<= evNumber2; nev++) { |
a939f834 | 137 | if(nev>0) { |
138 | nparticles = gAlice->GetEvent(nev); | |
7b97c7b3 | 139 | gAlice->SetEvent(nev); |
140 | if(!gAlice->TreeR()) gAlice-> MakeTree("R"); | |
141 | ITS->MakeBranch("R"); | |
a939f834 | 142 | } |
e8189707 | 143 | cout << "nev " <<nev<<endl; |
144 | cout << "nparticles " <<nparticles<<endl; | |
145 | if (nev < evNumber1) continue; | |
146 | if (nparticles <= 0) return; | |
147 | ||
148 | TTree *TD = gAlice->TreeD(); | |
149 | Int_t nent=TD->GetEntries(); | |
7b97c7b3 | 150 | printf("Found %d entries in the treeD (must be one per module per event!)\n",nent); |
e8189707 | 151 | //Int_t nmodules=geom->GetLastSSD(); |
a939f834 | 152 | //Int_t last_entry=nent-nmodules; |
153 | //Int_t last_entry=1; | |
154 | Int_t last_entry=0; | |
e53d0fac | 155 | timer.Start(); |
e8189707 | 156 | ITS->DigitsToRecPoints(nev,last_entry,"All"); |
e53d0fac | 157 | timer.Stop(); timer.Print(); |
e8189707 | 158 | } // event loop |
159 | ||
9c712bc6 | 160 | delete rec0; |
161 | delete rec1; | |
162 | delete rec2; | |
163 | ||
e8189707 | 164 | file->Close(); |
165 | } | |
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