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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 | |
1ef94a0c | 53 | // finder as it's done in this macro |
90dea86a | 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); | |
e8189707 | 72 | |
73 | // SDD | |
74 | ||
75 | AliITSDetType *iDetType=ITS->DetType(1); | |
76 | AliITSgeom *geom = ITS->GetITSgeom(); | |
77 | ||
78 | AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType->GetSegmentationModel(); | |
79 | if (!seg1) seg1 = new AliITSsegmentationSDD(geom); | |
80 | AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel(); | |
81 | if (!res1) res1=new AliITSresponseSDD(); | |
1ef94a0c | 82 | |
83 | Float_t baseline,noise; | |
84 | res1->GetNoiseParam(noise,baseline); | |
85 | Float_t noise_after_el = res1->GetNoiseAfterElectronics(); | |
86 | Float_t thres = baseline; | |
87 | thres += (4.*noise_after_el); // TB // (4.*noise_after_el); | |
88 | printf("thres %f\n",thres); | |
89 | res1->Print(); | |
90 | ||
91 | TClonesArray *dig1 = ITS->DigitsAddress(iDet); | |
e8189707 | 92 | TClonesArray *recp1 = ITS->ClustersAddress(1); |
93 | AliITSClusterFinderSDD *rec1=new AliITSClusterFinderSDD(seg1,res1,dig1,recp1); | |
90dea86a | 94 | rec1->SetCutAmplitude((int)thres); |
1ef94a0c | 95 | ITS->SetReconstructionModel(iDet,rec1); |
96 | rec1->Print(); | |
e8189707 | 97 | |
e8189707 | 98 | // SSD |
99 | ||
100 | AliITSDetType *iDetType=ITS->DetType(2); | |
101 | AliITSsegmentationSSD *seg2=(AliITSsegmentationSSD*)iDetType->GetSegmentationModel(); | |
102 | TClonesArray *dig2 = ITS->DigitsAddress(2); | |
a939f834 | 103 | AliITSClusterFinderSSD *rec2=new AliITSClusterFinderSSD(seg2,dig2); |
e8189707 | 104 | ITS->SetReconstructionModel(2,rec2); |
105 | // test | |
9c712bc6 | 106 | //printf("SSD dimensions %f %f \n",seg2->Dx(),seg2->Dz()); |
107 | //printf("SSD nstrips %d %d \n",seg2->Npz(),seg2->Npx()); | |
e8189707 | 108 | |
109 | ||
110 | ||
111 | // | |
112 | // Event Loop | |
113 | // | |
114 | ||
e53d0fac | 115 | cout << "Looking for clusters...\n"; |
116 | ||
117 | TStopwatch timer; | |
118 | ||
7b97c7b3 | 119 | if(!gAlice->TreeR()) gAlice->MakeTree("R"); |
120 | //make branch | |
121 | ITS->MakeBranch("R"); | |
122 | ||
e8189707 | 123 | for (int nev=evNumber1; nev<= evNumber2; nev++) { |
a939f834 | 124 | if(nev>0) { |
125 | nparticles = gAlice->GetEvent(nev); | |
7b97c7b3 | 126 | gAlice->SetEvent(nev); |
127 | if(!gAlice->TreeR()) gAlice-> MakeTree("R"); | |
128 | ITS->MakeBranch("R"); | |
a939f834 | 129 | } |
e8189707 | 130 | cout << "nev " <<nev<<endl; |
131 | cout << "nparticles " <<nparticles<<endl; | |
132 | if (nev < evNumber1) continue; | |
133 | if (nparticles <= 0) return; | |
134 | ||
a939f834 | 135 | Int_t last_entry=0; |
1ef94a0c | 136 | timer.Start(); |
e8189707 | 137 | ITS->DigitsToRecPoints(nev,last_entry,"All"); |
1ef94a0c | 138 | timer.Stop(); timer.Print(); |
e8189707 | 139 | } // event loop |
140 | ||
9c712bc6 | 141 | delete rec0; |
142 | delete rec1; | |
143 | delete rec2; | |
144 | ||
e8189707 | 145 | file->Close(); |
146 | } | |
147 | ||
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