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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 | $Log$ | |
f3ed336b | 17 | Revision 1.3 2000/10/02 21:28:13 fca |
18 | Removal of useless dependecies via forward declarations | |
19 | ||
94de3818 | 20 | Revision 1.2 2000/07/13 16:41:29 fca |
21 | New START corrected for coding conventions | |
22 | ||
ef51244a | 23 | Revision 1.1 2000/03/24 17:46:58 alla |
24 | Vertex reconstruction | |
25 | ||
6740ab97 | 26 | */ |
27 | #include <TObject.h> | |
28 | #include "AliSTARTvertex.h" | |
29 | #include "AliSTARTdigit.h" | |
30 | #include "AliSTARThit.h" | |
31 | #include "AliSTART.h" | |
32 | #include "AliRun.h" | |
33 | #include "AliMC.h" | |
34 | ||
f3ed336b | 35 | //#include "TTree.h" |
36 | #include "TDirectory.h" | |
37 | ||
6740ab97 | 38 | ClassImp(AliSTARTvertex) |
39 | ||
40 | AliSTARTvertex::AliSTARTvertex( Int_t * Zposit) | |
41 | { | |
42 | // | |
6740ab97 | 43 | // The creator for the AliSTARTvertex class. This routine fills the |
44 | // AliSTARTvertex data members from the array vertex. | |
45 | // The order of the elements in the vertex array are | |
f3ed336b | 46 | // fZposition = vertex[0], |
6740ab97 | 47 | // |
48 | ||
49 | Zposit = &fZposition ; | |
50 | } | |
51 | ||
52 | void AliSTARTvertex::Reconstruct(Int_t evNumber=1) | |
53 | { | |
f3ed336b | 54 | /*************************************************** |
55 | Resonstruct digits to vertex position | |
56 | ****************************************************/ | |
57 | ||
6740ab97 | 58 | Int_t timediff; |
59 | Float_t timePs; | |
60 | char nameTD[8],nameTR[8]; | |
61 | ||
62 | TBranch *bRec=0; | |
63 | TBranch *bd; | |
64 | AliSTARTdigit *digits; | |
65 | AliSTARTvertex *vertex; | |
66 | ||
67 | Int_t buffersize=256; | |
68 | Int_t split=1; | |
69 | ||
70 | // TParticle *particle; | |
71 | digits = new AliSTARTdigit(); | |
72 | vertex = new AliSTARTvertex(); | |
6740ab97 | 73 | |
74 | // Event ------------------------- LOOP | |
75 | ||
ef51244a | 76 | sprintf(nameTD,"TreeD%d",evNumber); |
77 | printf("%s\n",nameTD); | |
78 | TTree *td = (TTree*)gDirectory->Get(nameTD); | |
79 | bd = td->GetBranch("START"); | |
80 | bd->SetAddress(&digits); | |
81 | bd->GetEvent(0); | |
ef51244a | 82 | sprintf(nameTR,"TreeR%d",evNumber); |
83 | TTree *tr = new TTree(nameTR,"START"); | |
84 | bRec = tr->Branch("START","AliSTARTvertex",&vertex,buffersize,split); | |
ef51244a | 85 | if(digits->GetTime()!=999999) |
86 | { | |
87 | timediff=digits->GetTime(); //time in number of channels | |
88 | timePs=(timediff-128)*10.; // time in Ps channel_width =10ps | |
6740ab97 | 89 | Float_t c = 299792458/1.e9; //speed of light cm/ps |
ef51244a | 90 | //Float_t c = 0.3; //speed of light mm/ps |
91 | Float_t Zposit=timePs*c;// for 0 vertex | |
6740ab97 | 92 | vertex->Set(Zposit); |
ef51244a | 93 | tr->Fill(); |
94 | tr->Write(); | |
6740ab97 | 95 | } |
96 | ||
97 | } | |
98 | ||
99 | ||
100 | ||
101 |