]>
Commit | Line | Data |
---|---|---|
7eb061fb | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-2007, 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 | /* $Id$ */ | |
17 | ||
18 | ||
19 | //------------------------------------------------------------------------- | |
20 | // Class AliMixedEvent | |
21 | // VEvent which is the container of several VEvents | |
22 | // Use Case: Event Mixing | |
23 | // Origin: Andreas Morsch, CERN, Andreas.Morsch@cern.ch | |
24 | //------------------------------------------------------------------------- | |
25 | ||
26 | ||
27 | #include "AliMixedEvent.h" | |
28 | #include <TMath.h> | |
29 | ||
30 | ClassImp(AliMixedEvent) | |
31 | ||
32 | ||
33 | AliMixedEvent::AliMixedEvent() : | |
34 | AliVEvent(), | |
a2813d8b | 35 | fEventList(), |
7eb061fb | 36 | fNEvents(0), |
37 | fNumberOfTracks(0), | |
38 | fNTracksCumul(0) | |
39 | { | |
40 | // Default constructor | |
41 | } | |
42 | ||
43 | ||
44 | AliMixedEvent::AliMixedEvent(const AliMixedEvent& Evnt) : | |
a2813d8b | 45 | AliVEvent(Evnt), |
46 | fEventList(), | |
47 | fNEvents(0), | |
48 | fNumberOfTracks(0), | |
49 | fNTracksCumul(0) | |
50 | { } // Copy constructor | |
7eb061fb | 51 | |
52 | AliMixedEvent& AliMixedEvent::operator=(const AliMixedEvent& vEvnt) | |
53 | { if (this!=&vEvnt) { | |
54 | AliVEvent::operator=(vEvnt); | |
55 | } | |
56 | ||
57 | return *this; | |
58 | } | |
59 | ||
60 | ||
61 | void AliMixedEvent::AddEvent(AliVEvent* evt) | |
62 | { | |
63 | // Add a new event to the list | |
64 | fEventList.Add(evt); | |
65 | } | |
66 | ||
67 | ||
68 | void AliMixedEvent::Init() | |
69 | { | |
70 | // Initialize meta information | |
71 | fNEvents = fEventList.GetEntries(); | |
72 | fNTracksCumul = new Int_t[fNEvents]; | |
73 | fNumberOfTracks = 0; | |
74 | TIter next(&fEventList); | |
75 | AliVEvent* event; | |
76 | Int_t iev = 0; | |
77 | ||
78 | while((event = (AliVEvent*)next())) { | |
79 | fNTracksCumul[iev++] = fNumberOfTracks; | |
80 | fNumberOfTracks += (event->GetNumberOfTracks()); | |
81 | } | |
82 | } | |
83 | ||
84 | ||
85 | AliVParticle* AliMixedEvent::GetTrack(Int_t i) const | |
86 | { | |
87 | // Return track # i | |
88 | Int_t iEv = TMath::BinarySearch(fNEvents, fNTracksCumul, i); | |
89 | ||
90 | Int_t irel = i - fNTracksCumul[iEv]; | |
91 | AliVEvent* evt = (AliVEvent*) (fEventList.At(iEv)); | |
92 | return (evt->GetTrack(irel)); | |
93 | } | |
94 | ||
95 | ||
96 | void AliMixedEvent::Reset() | |
97 | { | |
98 | // Reset the event | |
99 | fEventList.Clear(); | |
100 | fNEvents = 0; | |
101 | fNumberOfTracks = 0; | |
102 | if (fNTracksCumul) { | |
103 | delete[] fNTracksCumul; | |
104 | fNTracksCumul = 0; | |
105 | } | |
106 | } | |
107 | ||
108 | Int_t AliMixedEvent::EventIndex(Int_t itrack) | |
109 | { | |
110 | // Return the event index for track #itrack | |
111 | return TMath::BinarySearch(fNEvents, fNTracksCumul, itrack); | |
112 | } |