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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 | Revision 1.4 2000/12/22 16:17:15 hristov | |
18 | Updated START code from Alla | |
19 | ||
20 | Revision 1.3 2000/10/02 21:28:13 fca | |
21 | Removal of useless dependecies via forward declarations | |
22 | ||
23 | Revision 1.2 2000/07/13 16:41:29 fca | |
24 | New START corrected for coding conventions | |
25 | ||
26 | Revision 1.1 2000/03/24 17:46:58 alla | |
27 | Vertex reconstruction | |
28 | ||
29 | */ | |
30 | #include <TObject.h> | |
31 | #include "AliSTARTvertex.h" | |
32 | #include "AliSTARTdigit.h" | |
33 | #include "AliSTARThit.h" | |
34 | #include "AliSTART.h" | |
35 | #include "AliRun.h" | |
36 | #include "AliMC.h" | |
37 | ||
38 | //#include "TTree.h" | |
39 | #include "TDirectory.h" | |
40 | ||
41 | ClassImp(AliSTARTvertex) | |
42 | ||
43 | AliSTARTvertex::AliSTARTvertex( Int_t * Zposit) | |
44 | { | |
45 | // | |
46 | // The creator for the AliSTARTvertex class. This routine fills the | |
47 | // AliSTARTvertex data members from the array vertex. | |
48 | // The order of the elements in the vertex array are | |
49 | // fZposition = vertex[0], | |
50 | // | |
51 | ||
52 | Zposit = &fZposition ; | |
53 | } | |
54 | ||
55 | void AliSTARTvertex::Reconstruct(Int_t evNumber=1) | |
56 | { | |
57 | /*************************************************** | |
58 | Resonstruct digits to vertex position | |
59 | ****************************************************/ | |
60 | ||
61 | Int_t timediff; | |
62 | Float_t timePs; | |
63 | char nameTD[8],nameTR[8]; | |
64 | ||
65 | TBranch *bRec=0; | |
66 | TBranch *bd; | |
67 | AliSTARTdigit *digits; | |
68 | AliSTARTvertex *vertex; | |
69 | ||
70 | Int_t buffersize=256; | |
71 | ||
72 | // TParticle *particle; | |
73 | digits = new AliSTARTdigit(); | |
74 | vertex = new AliSTARTvertex(); | |
75 | ||
76 | // Event ------------------------- LOOP | |
77 | ||
78 | sprintf(nameTD,"TreeD%d",evNumber); | |
79 | printf("%s\n",nameTD); | |
80 | TTree *td = (TTree*)gDirectory->Get(nameTD); | |
81 | bd = td->GetBranch("START"); | |
82 | bd->SetAddress(&digits); | |
83 | bd->GetEvent(0); | |
84 | sprintf(nameTR,"TreeR%d",evNumber); | |
85 | TTree *tr = new TTree(nameTR,"START"); | |
86 | bRec = tr->Branch("START","AliSTARTvertex",&vertex,buffersize); | |
87 | if(digits->GetTime()!=999999) | |
88 | { | |
89 | timediff=digits->GetTime(); //time in number of channels | |
90 | timePs=(timediff-128)*10.; // time in Ps channel_width =10ps | |
91 | Float_t c = 299792458/1.e9; //speed of light cm/ps | |
92 | //Float_t c = 0.3; //speed of light mm/ps | |
93 | Float_t Zposit=timePs*c;// for 0 vertex | |
94 | vertex->Set(Zposit); | |
95 | tr->Fill(); | |
96 | tr->Write(); | |
97 | } | |
98 | ||
99 | } | |
100 | ||
101 | ||
102 | ||
103 |