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251a2c81 | 1 | #ifndef ALIFLATESDTRACK_H |
2 | #define ALIFLATESDTRACK_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
5 | * See cxx source for full Copyright notice * | |
6 | * Primary Authors : Sergey Gorbunov, Jochen Thaeder, Chiara Zampolli */ | |
7 | ||
8 | /* | |
9 | * See implementation file for documentation | |
10 | */ | |
11 | ||
12 | /* | |
13 | Cp - Track parameters constrained to the primary vertex | |
14 | Ip - Track parameters estimated at the inner wall of TPC | |
15 | TPCInner - Track parameters estimated at the inner wall of TPC using the TPC stand-alone | |
16 | Op - Track parameters estimated at the point of maximal radial coordinate reached during the tracking | |
17 | */ | |
18 | ||
19 | #include "Rtypes.h" | |
20 | ||
21 | #include "AliFlatTPCCluster.h" | |
22 | #include "AliFlatExternalTrackParam.h" | |
50ff8c36 | 23 | #include "AliVVtrack.h" |
251a2c81 | 24 | |
25 | class AliESDtrack; | |
26 | class AliESDfriendTrack; | |
27 | class AliExternalTrackParam; | |
28 | ||
50ff8c36 | 29 | class AliFlatESDTrack: public AliVVtrack { |
251a2c81 | 30 | public: |
31 | // -------------------------------------------------------------------------------- | |
32 | // -- Constructor / Destructors | |
33 | AliFlatESDTrack(); | |
488e1434 | 34 | AliFlatESDTrack(Bool_t){} |
251a2c81 | 35 | AliFlatESDTrack(const AliESDtrack* track, AliESDfriendTrack* friendTrack); |
36 | ~AliFlatESDTrack(); | |
37 | ||
38 | // -------------------------------------------------------------------------------- | |
39 | // -- Fill / Set methods | |
40 | Int_t FillExternalTrackParam( | |
41 | const AliExternalTrackParam* refittedParam, | |
42 | const AliExternalTrackParam* innerParam, | |
43 | const AliExternalTrackParam* innerTPC, | |
44 | const AliExternalTrackParam* outerParam, | |
45 | const AliExternalTrackParam* constrainedParam, | |
46 | const AliExternalTrackParam* outerITSParam | |
47 | ); | |
48 | ||
50ff8c36 | 49 | AliFlatTPCCluster *GetNextTPCClusterPointer(){ return GetTPCCluster(fNTPCClusters); } |
251a2c81 | 50 | |
51 | void StoreLastTPCCluster(){ | |
52 | ++fNTPCClusters; | |
53 | fSize += sizeof(AliFlatTPCCluster); | |
54 | } | |
55 | ||
56 | void SetNumberOfITSClusters( Int_t nCl ) { fNITSClusters = nCl; } | |
57 | ||
58 | Int_t Fill( const AliESDtrack* track, AliESDfriendTrack* friendTrack); | |
59 | ||
60 | // -------------------------------------------------------------------------------- | |
61 | // -- Getter methods | |
62 | AliFlatExternalTrackParam* GetTrackParamRefitted(){ | |
63 | return (fTrackParamMask & 0x1) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) : NULL; | |
64 | } | |
65 | ||
66 | AliFlatExternalTrackParam* GetTrackParamIp() { | |
67 | return (fTrackParamMask & 0x2) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) + CountBits(fTrackParamMask, 0x1) : NULL; | |
68 | } | |
69 | ||
70 | AliFlatExternalTrackParam* GetTrackParamTPCInner() { | |
71 | return (fTrackParamMask & 0x4) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) + CountBits(fTrackParamMask, 0x3) : NULL; | |
72 | } | |
73 | ||
74 | AliFlatExternalTrackParam* GetTrackParamOp() { | |
75 | return (fTrackParamMask & 0x8) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) + CountBits(fTrackParamMask, 0x7) : NULL; | |
76 | } | |
77 | ||
78 | AliFlatExternalTrackParam* GetTrackParamCp() { | |
79 | return (fTrackParamMask & 0x10) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) + CountBits(fTrackParamMask, 0xF) : NULL; | |
80 | } | |
81 | ||
82 | AliFlatExternalTrackParam* GetTrackParamITSOut() { | |
83 | return (fTrackParamMask & 0x20) ? reinterpret_cast<AliFlatExternalTrackParam*>(fContent) + CountBits(fTrackParamMask, 0x1F) : NULL; | |
84 | } | |
85 | ||
86 | // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- | |
87 | ||
88 | Int_t GetNumberOfTPCClusters() { | |
89 | return fNTPCClusters; | |
90 | } | |
91 | ||
92 | AliFlatTPCCluster *GetTPCClusters() { | |
93 | return reinterpret_cast< AliFlatTPCCluster*>(fContent + sizeof(AliFlatExternalTrackParam)*CountBits(fTrackParamMask)); | |
94 | } | |
488e1434 | 95 | |
96 | ||
251a2c81 | 97 | |
50ff8c36 | 98 | AliFlatTPCCluster *GetTPCCluster(Int_t ind) { |
488e1434 | 99 | return reinterpret_cast< AliFlatTPCCluster*>( GetTPCClusters() ) + ind ; |
f4e66baf | 100 | } |
251a2c81 | 101 | |
102 | Int_t GetNumberOfITSClusters() { | |
103 | return fNITSClusters; | |
104 | } | |
105 | ||
106 | ||
107 | // -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- | |
108 | ||
488e1434 | 109 | AliFlatESDTrack *GetNextTrack() |
110 | { | |
111 | ||
112 | AliFlatESDTrack * t = reinterpret_cast<AliFlatESDTrack*> (fContent + fSize); | |
113 | new(t) AliFlatESDTrack(kTRUE); | |
114 | return t; | |
115 | } | |
251a2c81 | 116 | |
117 | // -------------------------------------------------------------------------------- | |
118 | // -- Size methods | |
119 | static ULong64_t EstimateSize(Bool_t useESDFriends = kTRUE, Int_t nTPCClusters = 160 ); | |
120 | ULong64_t GetSize() {return fContent - reinterpret_cast<Byte_t*>(this) + fSize;} | |
121 | ||
488e1434 | 122 | |
251a2c81 | 123 | private: |
124 | AliFlatESDTrack(const AliFlatESDTrack&); | |
125 | AliFlatESDTrack& operator=(const AliFlatESDTrack&); | |
126 | ||
127 | Int_t FillExternalTrackParam(const AliExternalTrackParam* param, UShort_t flag); | |
128 | ||
129 | UInt_t CountBits(Byte_t field, UInt_t mask = 0xFFFFFFFF); | |
130 | ||
131 | // -------------------------------------------------------------------------------- | |
132 | // -- Fixed size member objects | |
133 | // -> Try to align in memory | |
134 | ||
135 | Byte_t fTrackParamMask; // Bit mask specfifying which ExternalTrackParam are present | |
136 | Int_t fNTPCClusters; // Number of TPC clusters in track | |
137 | Int_t fNITSClusters; // Number of ITS clusters in track | |
138 | // Bool_t fMCLabels; | |
139 | ||
140 | ULong64_t fSize; // Size of this object | |
141 | ||
142 | // -------------------------------------------------------------------------------- | |
143 | // -- Variable Size Object | |
144 | Byte_t fContent[1]; // Variale size object, which contains all data | |
145 | ||
146 | }; | |
147 | #endif |