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6740ab97 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | /* | |
16 | $Log$ | |
17 | */ | |
18 | #include <TObject.h> | |
19 | #include "AliSTARTvertex.h" | |
20 | #include "AliSTARTdigit.h" | |
21 | #include "AliSTARThit.h" | |
22 | #include "AliSTART.h" | |
23 | #include "AliRun.h" | |
24 | #include "AliMC.h" | |
25 | ||
26 | ClassImp(AliSTARTvertex) | |
27 | ||
28 | AliSTARTvertex::AliSTARTvertex( Int_t * Zposit) | |
29 | { | |
30 | // | |
31 | // Create START digit | |
32 | // The creator for the AliSTARTvertex class. This routine fills the | |
33 | // AliSTARTvertex data members from the array vertex. | |
34 | // The order of the elements in the vertex array are | |
35 | // fEvent = digits[0], fZposition = vertex[1], | |
36 | // fTime_diff = Vertex[2] | |
37 | // Therefore the array digits is expected to be at least 3 elements long. | |
38 | // | |
39 | ||
40 | Zposit = &fZposition ; | |
41 | } | |
42 | ||
43 | void AliSTARTvertex::Reconstruct(Int_t evNumber=1) | |
44 | { | |
45 | ||
46 | Int_t timediff; | |
47 | Float_t timePs; | |
48 | char nameTD[8],nameTR[8]; | |
49 | ||
50 | TBranch *bRec=0; | |
51 | TBranch *bd; | |
52 | AliSTARTdigit *digits; | |
53 | AliSTARTvertex *vertex; | |
54 | ||
55 | Int_t buffersize=256; | |
56 | Int_t split=1; | |
57 | ||
58 | // TParticle *particle; | |
59 | digits = new AliSTARTdigit(); | |
60 | vertex = new AliSTARTvertex(); | |
61 | // AliSTART *START = (AliSTART*) gAlice->GetDetector("START"); | |
62 | ||
63 | // Event ------------------------- LOOP | |
64 | ||
65 | sprintf(nameTD,"TreeD%d",evNumber); | |
66 | printf("%s\n",nameTD); | |
67 | TTree *TD = (TTree*)gDirectory->Get(nameTD); | |
68 | bd = TD->GetBranch("START"); | |
69 | bd->SetAddress(&digits); | |
70 | bd->GetEvent(0); | |
71 | printf(" Digits: "); digits->MyDump(); | |
72 | ||
73 | sprintf(nameTR,"TreeR%d",evNumber); | |
74 | TTree *TR = new TTree(nameTR,"START"); | |
75 | bRec = TR->Branch("START","AliSTARTvertex",&vertex,buffersize,split); | |
76 | ||
77 | // TD->Print(); TD->Show(0); TD->GetBranch("START")->Dump(); | |
78 | ||
79 | if(digits->fTime_average!=0) | |
80 | { | |
81 | timediff=digits->fTime_diff; //time in number of channels | |
82 | timePs=(timediff-128)*10.; // time in Ps | |
83 | printf(" timediff %d in PS %f\n",timediff,timePs); | |
84 | Float_t c = 299792458/1.e9; //speed of light cm/ps | |
85 | Float_t Zposit=timePs*c; | |
86 | printf(" Z position %f\n",Zposit); | |
87 | // vertex->GetVertex(); | |
88 | vertex->Set(Zposit); | |
89 | TR->Fill(); | |
90 | TR->Write(); | |
91 | //hTimediff->Fill(timePs); | |
92 | //hVertex->Fill(Zposit); | |
93 | } | |
94 | ||
95 | } | |
96 | ||
97 | ||
98 | ||
99 |