flatESD compare component
[u/mrichter/AliRoot.git] / HLT / global / AliFlatESDTrack.cxx
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251a2c81 1/* $Id$ */
2
3/**************************************************************************
4 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * *
6 * Author: The ALICE Off-line Project. *
7 * Contributors are mentioned in the code where appropriate. *
8 * *
9 * Permission to use, copy, modify and distribute this software and its *
10 * documentation strictly for non-commercial purposes is hereby granted *
11 * without fee, provided that the above copyright notice appears in all *
12 * copies and that both the copyright notice and this permission notice *
13 * appear in the supporting documentation. The authors make no claims *
14 * about the suitability of this software for any purpose. It is *
15 * provided "as is" without express or implied warranty. *
16 **************************************************************************/
17
18/**
19 * >> Flat structure representing an ESDTrack <<
20 *
21 * To be used in the online and offline calibration schema.
22 *
23 * Class provides interface methods for
24 * - Filling from AliESDtrack and AliExternalTrackParam, as well
25 * as clusters from ESD friends (if requested)
26 * - HLT Filling to be added
27 *
28 *
29 * Primary Authors : Sergey Gorbunov, Jochen Thaeder, Chiara Zampolli
30 *
31 **************************************************************************/
32
888585e5 33#include "Rtypes.h"
34#include "AliFlatESDTrack.h"
35#include "AliFlatExternalTrackParam.h"
251a2c81 36#include "AliESDtrack.h"
251a2c81 37#include "AliExternalTrackParam.h"
251a2c81 38#include "Riostream.h"
39
251a2c81 40
48ec9ee6 41
c2ea967e 42
251a2c81 43// _______________________________________________________________________________________________________
251a2c81 44
251a2c81 45
46// _______________________________________________________________________________________________________
0d577a2c 47Int_t AliFlatESDTrack::SetFromESDTrack(const AliESDtrack* track)
888585e5 48{
49 // Fill external track parameters
251a2c81 50 fTrackParamMask = 0;
51 fNTPCClusters = 0;
52 fNITSClusters = 0;
888585e5 53 fContentSize = 0;
251a2c81 54
55 if( !track ) return 0;
56
888585e5 57 Int_t iResult = SetExternalTrackParam( track,
58 track->GetInnerParam(),
59 track->GetTPCInnerParam(),
60 track->GetOuterParam(),
61 track->GetConstrainedParam(), NULL );
62 fNITSClusters = track->GetTPCNcls();
251a2c81 63
64 return iResult;
65}
66
67// _______________________________________________________________________________________________________
888585e5 68Int_t AliFlatESDTrack::SetExternalTrackParam(
69 const AliExternalTrackParam* refittedParam,
70 const AliExternalTrackParam* innerParam,
71 const AliExternalTrackParam* innerTPC,
72 const AliExternalTrackParam* outerParam,
73 const AliExternalTrackParam* constrainedParam,
74 const AliExternalTrackParam* outerITS
75 ){
251a2c81 76 // Fill external track parameters
77
78 fTrackParamMask = 0;
79 fNTPCClusters = 0;
888585e5 80 fContentSize = 0;
251a2c81 81
82 Int_t iResult = 0;
83
84 Byte_t flag = 0x1;
85 iResult = FillExternalTrackParam(refittedParam, flag);
86
87 flag = 0x2;
88 iResult = FillExternalTrackParam(innerParam, flag);
89
90 flag = 0x4;
91 iResult = FillExternalTrackParam(innerTPC, flag);
92
93 flag = 0x8;
94 iResult = FillExternalTrackParam(outerParam, flag);
95
96 flag = 0x10;
97 iResult = FillExternalTrackParam(constrainedParam, flag);
98
99 flag = 0x20;
100 iResult = FillExternalTrackParam(outerITS, flag);
101
102 return iResult;
103}
104
105// _______________________________________________________________________________________________________
106Int_t AliFlatESDTrack::FillExternalTrackParam(const AliExternalTrackParam* param, UShort_t flag) {
107 // Fill external track parameters
108
48ec9ee6 109 if (!param) return -1;
251a2c81 110
ee82d961 111 //Printf(" DEBUG: CONTENT %d >> %p + 0x%07llx = %p", flag, fContent, fContentSize, fContent + fContentSize);
251a2c81 112
888585e5 113 AliFlatExternalTrackParam * current = reinterpret_cast<AliFlatExternalTrackParam*> (fContent + fContentSize);
48ec9ee6 114 current->SetExternalTrackParam( param );
251a2c81 115 fTrackParamMask |= flag;
888585e5 116 fContentSize += sizeof(AliFlatExternalTrackParam);
251a2c81 117
118 return 0;
119}
120
0d577a2c 121
251a2c81 122// _______________________________________________________________________________________________________
ea12701f 123Bool_t AliFlatESDTrack::GetXYZ(Double_t *p) const {
124 const AliFlatExternalTrackParam *f = GetFlatTrackParam();
125 if (!f) { return kFALSE; }
126 p[0]=f->GetX();
127 p[1]=f->GetY();
128 p[2]=f->GetZ();
129 return kTRUE;
130}