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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 | **************************************************************************/ | |
4c475d27 | 15 | |
88cb7938 | 16 | /* $Id$ */ |
ef0750c2 | 17 | |
88cb7938 | 18 | #include <Riostream.h> |
94de3818 | 19 | |
88cb7938 | 20 | #include <TDirectory.h> |
ef51244a | 21 | |
a8859328 | 22 | #include "AliRunLoader.h" |
23 | #include "AliRun.h" | |
6fc133d2 | 24 | #include "AliSTARTLoader.h" |
6740ab97 | 25 | #include "AliSTARTdigit.h" |
121a60bd | 26 | #include "AliSTARTReconstructor.h" |
affef71b | 27 | #include <AliESD.h> |
f3ed336b | 28 | |
121a60bd | 29 | ClassImp(AliSTARTReconstructor) |
6740ab97 | 30 | |
d4637c2e | 31 | void AliSTARTReconstructor::Reconstruct(AliRunLoader* /*runLoader*/) const |
121a60bd | 32 | { |
33 | // nothing to be done | |
121a60bd | 34 | } |
35 | ||
36 | void AliSTARTReconstructor::FillESD(AliRunLoader* rl, AliESD *pESD) const | |
6740ab97 | 37 | { |
f3ed336b | 38 | /*************************************************** |
39 | Resonstruct digits to vertex position | |
40 | ****************************************************/ | |
d4637c2e | 41 | |
a8859328 | 42 | Float_t c = 0.3; //speed of light mm/ps |
43 | Int_t channelWigth=25; //ps | |
6fc133d2 | 44 | if (!rl) { |
45 | Error("Reconstruct", "No run loader"); | |
46 | return; | |
47 | } | |
affef71b | 48 | |
6fc133d2 | 49 | if (rl->GetDebug()>1) Info("Reconstruct","START!!!"); |
50 | ||
51 | AliSTARTLoader* pStartLoader = (AliSTARTLoader*) rl->GetLoader("STARTLoader"); | |
52 | ||
53 | pStartLoader->LoadDigits(); | |
54 | AliSTARTdigit* pDigits=pStartLoader->Digits(); | |
55 | if (!pDigits) { | |
56 | Error("Reconstruct", "no digits found"); | |
57 | return; | |
58 | } | |
59 | ||
60 | if (rl->GetDebug()>1) pDigits->Dump(); | |
a8859328 | 61 | if(pDigits) { |
62 | Int_t besttimeright = pDigits->GetBestTimeRight(); | |
63 | Int_t besttimeleft = pDigits->GetBestTimeLeft(); | |
64 | Float_t besttimerightPs = Float_t (besttimeright*channelWigth); | |
65 | Float_t besttimeleftPs = Float_t (besttimeleft*channelWigth); | |
66 | Float_t Zposit=(c*(besttimerightPs-besttimeleftPs)-(3500.-697))/2; | |
67 | ||
6fc133d2 | 68 | |
6fc133d2 | 69 | pESD->SetT0zVertex(Zposit); |
70 | ||
71 | if (rl->GetDebug()>1) { | |
72 | cout<<" vertex in ESD "<< pESD->GetT0zVertex()<<endl; | |
73 | } | |
74 | ||
75 | } // vertex in 3 sigma | |
76 | pStartLoader->UnloadDigits(); | |
affef71b | 77 | } |
6740ab97 | 78 | |
79 | ||
80 | ||
81 | ||
7115262b | 82 | |
83 |