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Commit | Line | Data |
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c1bfc82c | 1 | Int_t AliITSHits2Digits(const char *inFile = "galice.root"){ |
bcb08e43 | 2 | //////////////////////////////////////////////////////////////////// |
3 | // This macro will take hits from a galice.root file and | |
4 | // produce digits for the ITS using the settings for the detector | |
5 | // simulations defined in this file. It will measure the time | |
6 | // required to do so and the increase in the galice.root file. | |
7 | // There is only one input, that of the name of the root file | |
8 | // containing the hits and to which the digits will be written to. | |
9 | // This macro will process all of the events on the root file. | |
10 | //////////////////////////////////////////////////////////////////// | |
20623db1 | 11 | |
c1bfc82c | 12 | // Dynamically link some shared libs |
13 | if (gClassTable->GetID("AliRun") < 0) { | |
14 | gROOT->LoadMacro("loadlibs.C"); | |
15 | loadlibs(); | |
16 | } // end if | |
20623db1 | 17 | |
c1bfc82c | 18 | // Connect the Root Galice file containing Geometry, Kine and Hits |
20623db1 | 19 | |
c1bfc82c | 20 | TFile *file = (TFile*)gROOT->GetListOfFiles()->FindObject(inFile); |
21 | if (file) {file->Close(); delete file;} | |
22 | cout << "AliITSHits2Digits" << endl; | |
23 | file = new TFile(inFile,"UPDATE"); | |
24 | if (!file->IsOpen()) { | |
25 | cerr<<"Can't open "<<inFile<<" !" << endl; | |
26 | return 1; | |
27 | } // end if !file | |
28 | file->ls(); | |
29 | ||
30 | // Get AliRun object from file or return if not on file | |
31 | if (gAlice) delete gAlice; | |
32 | gAlice = (AliRun*)file->Get("gAlice"); | |
33 | if (!gAlice) { | |
34 | cerr << "AliITSITSHits2Digits.C : AliRun object not found on file" | |
35 | << endl; | |
36 | return 2; | |
37 | } // end if !gAlice | |
38 | ||
39 | AliITS *ITS = (AliITS*)gAlice->GetDetector("ITS"); | |
40 | if (!ITS) { | |
41 | cerr<<"AliITSHits2Digits.C : AliITS object not found on file" | |
42 | << endl; | |
43 | return 3; | |
44 | } // end if !ITS | |
2603d98a | 45 | if(!(ITS->GetITSgeom())){ |
46 | cerr << " AliITSgeom not found. Can't digitize with out it." << endl; | |
47 | return 4; | |
48 | } // end if | |
c1bfc82c | 49 | |
50 | // SPD | |
51 | cout << "Changing from Default SPD simulation, and responce." << endl; | |
52 | AliITSDetType *iDetType=ITS->DetType(0); | |
53 | AliITSsegmentationSPD *seg0=(AliITSsegmentationSPD*)iDetType-> | |
54 | GetSegmentationModel(); | |
55 | AliITSresponseSPD *res0 = (AliITSresponseSPD*)iDetType->GetResponseModel(); | |
56 | AliITSsimulationSPD *sim0=new AliITSsimulationSPD(seg0,res0); | |
57 | ITS->SetSimulationModel(0,sim0); | |
58 | // test | |
59 | cout << "SPD dimensions " << seg0->Dx() << " " << seg0->Dz() << endl; | |
60 | cout << "SPD npixels " << seg0->Npz() << " " << seg0->Npx() << endl; | |
61 | cout << "SPD pitches " << seg0->Dpz(0) << " " << seg0->Dpx(0) << endl; | |
62 | // end test | |
63 | ||
64 | // SDD | |
65 | cout << "Changing from Default SDD simulation, and responce." << endl; | |
66 | //Set response functions | |
67 | Float_t baseline = 10.; | |
68 | Float_t noise = 1.75; | |
69 | // SDD compression param: 2 fDecrease, 2fTmin, 2fTmax or disable, | |
70 | // 2 fTolerance | |
71 | AliITSDetType *iDetType=ITS->DetType(1); | |
72 | AliITSresponseSDD *res1 = (AliITSresponseSDD*)iDetType->GetResponseModel(); | |
73 | if (!res1) { | |
74 | res1=new AliITSresponseSDD(); | |
75 | ITS->SetResponseModel(1,res1); | |
76 | } // end if !res1 | |
77 | Float_t fCutAmp = baseline + 2.*noise; | |
78 | Int_t cp[8]={0,0,fCutAmp,fCutAmp,0,0,0,0}; //1D | |
79 | ||
80 | //res1->SetZeroSupp("2D"); | |
81 | res1->SetZeroSupp("1D"); | |
82 | res1->SetNoiseParam(noise,baseline); | |
83 | res1->SetDo10to8(kTRUE); | |
84 | res1->SetCompressParam(cp); | |
85 | res1->SetMinVal(4); | |
86 | res1->SetDiffCoeff(3.6,40.); | |
87 | AliITSsegmentationSDD *seg1=(AliITSsegmentationSDD*)iDetType-> | |
88 | GetSegmentationModel(); | |
89 | if (!seg1) { | |
2603d98a | 90 | seg1 = new AliITSsegmentationSDD(ITS->GetITSgeom(),res1); |
c1bfc82c | 91 | ITS->SetSegmentationModel(1,seg1); |
92 | } // end if !seg1 | |
93 | AliITSsimulationSDD *sim1 = new AliITSsimulationSDD(seg1,res1); | |
94 | sim1->SetDoFFT(1); | |
95 | sim1->SetCheckNoise(kFALSE); | |
96 | ITS->SetSimulationModel(1,sim1); | |
97 | ||
98 | // SSD | |
99 | cout << "Changing from Default SSD simulation, and responce." << endl; | |
100 | AliITSDetType *iDetType = ITS->DetType(2); | |
101 | AliITSsegmentationSSD *seg2 = (AliITSsegmentationSSD*)iDetType-> | |
102 | GetSegmentationModel(); | |
103 | AliITSresponseSSD *res2 = (AliITSresponseSSD*)iDetType->GetResponseModel(); | |
104 | res2->SetSigmaSpread(3.,2.); | |
105 | AliITSsimulationSSD *sim2 = new AliITSsimulationSSD(seg2,res2); | |
106 | ITS->SetSimulationModel(2,sim2); | |
107 | ||
c1bfc82c | 108 | cout << "Digitizing ITS..." << endl; |
109 | ||
110 | TStopwatch timer; | |
111 | Long_t size0 = file->GetSize(); | |
112 | timer.Start(); | |
bcb08e43 | 113 | gAlice->Hits2Digits("ITS"); |
c1bfc82c | 114 | timer.Stop(); timer.Print(); |
115 | ||
c1bfc82c | 116 | file->Close(); |
117 | Long_t size1 = file->GetSize(); | |
118 | cout << "File size before = " << size0 << " file size after = " << size1; | |
119 | cout << "Increase in file size is " << size1-size0 << " Bytes" << endl; | |
120 | delete file; | |
121 | return 0; | |
20623db1 | 122 | }; |
123 |