]>
Commit | Line | Data |
---|---|---|
a0cef3e1 | 1 | // $Id$ |
2 | // origin: src/AliL3TPCtracker.cxx 1.2 Fri Jun 10 04:25:00 2005 UTC by cvetan | |
3 | ||
4 | /************************************************************************** | |
5 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
6 | * * | |
7 | * Author: The ALICE Off-line Project. * | |
8 | * Contributors are mentioned in the code where appropriate. * | |
9 | * * | |
10 | * Permission to use, copy, modify and distribute this software and its * | |
11 | * documentation strictly for non-commercial purposes is hereby granted * | |
12 | * without fee, provided that the above copyright notice appears in all * | |
13 | * copies and that both the copyright notice and this permission notice * | |
14 | * appear in the supporting documentation. The authors make no claims * | |
15 | * about the suitability of this software for any purpose. It is * | |
16 | * provided "as is" without express or implied warranty. * | |
17 | **************************************************************************/ | |
18 | ||
19 | //------------------------------------------------------------------------- | |
20 | // Implementation of the HLT TPC hough transform tracker class | |
21 | // | |
22 | // It reads directly TPC digits using runloader and runs the HT | |
23 | // algorithm over them. | |
24 | // It stores the reconstructed hough tracks in the HLT ESD using the | |
25 | // the off-line AliESDtrack format. | |
26 | // | |
27 | // Origin: Cvetan Cheshkov, CERN, Cvetan.Cheshkov@cern.ch | |
28 | //------------------------------------------------------------------------- | |
29 | ||
30 | #include "AliESD.h" | |
31 | #include "AliRunLoader.h" | |
32 | #include "AliHLTTPCHoughTracker.h" | |
33 | #include "AliHLTHough.h" | |
34 | ||
35 | ClassImp(AliHLTTPCHoughTracker) | |
36 | ||
37 | AliHLTTPCHoughTracker::AliHLTTPCHoughTracker(AliRunLoader *runLoader):AliTracker() | |
38 | { | |
39 | //-------------------------------------------------------------- | |
40 | // Constructor | |
41 | //-------------------------------------------------------------- | |
42 | ||
43 | if(AliHLTTransform::GetVersion() == AliHLTTransform::kVdefault) { | |
44 | Bool_t isinit=AliHLTTransform::Init(runLoader); | |
45 | if(!isinit) AliWarning("Could not init AliHLTTransform settings, using defaults!"); | |
46 | } | |
47 | ||
48 | fRunLoader = runLoader; | |
49 | } | |
50 | ||
51 | Int_t AliHLTTPCHoughTracker::Clusters2Tracks(AliESD *event) | |
52 | { | |
53 | //-------------------------------------------------------------------- | |
54 | // This method reconstructs HLT TPC Hough tracks | |
55 | //-------------------------------------------------------------------- | |
56 | ||
57 | if (!fRunLoader) { | |
58 | AliError("Missing runloader!"); | |
59 | return kTRUE; | |
60 | } | |
61 | Int_t iEvent = fRunLoader->GetEventNumber(); | |
62 | ||
63 | Float_t ptmin = 0.1*AliHLTTransform::GetSolenoidField(); | |
64 | ||
65 | Float_t zvertex = GetZ(); | |
66 | ||
67 | AliInfo(Form("Hough Transform will run with ptmin=%f and zvertex=%f",ptmin,zvertex)); | |
68 | ||
69 | AliHLTHough *hough = new AliHLTHough(); | |
70 | ||
71 | hough->SetThreshold(4); | |
72 | hough->CalcTransformerParams(ptmin); | |
73 | hough->SetPeakThreshold(70,-1); | |
74 | hough->SetRunLoader(fRunLoader); | |
75 | hough->Init("./", kFALSE, 100, kFALSE,4,0,0,zvertex); | |
76 | hough->SetAddHistograms(); | |
77 | ||
78 | for(Int_t slice=0; slice<=35; slice++) | |
79 | { | |
80 | hough->ReadData(slice,iEvent); | |
81 | hough->Transform(); | |
82 | hough->AddAllHistogramsRows(); | |
83 | hough->FindTrackCandidatesRow(); | |
84 | hough->AddTracks(); | |
85 | } | |
86 | ||
87 | Int_t ntrk = hough->FillESD(event); | |
88 | ||
89 | Info("Clusters2Tracks","Number of found tracks: %d\n",ntrk); | |
90 | ||
91 | delete hough; | |
92 | ||
93 | return 0; | |
94 | } |