HLT/global/AliFlatESDTrack.cxx

   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
  33 #include "Rtypes.h"
  34 #include "AliFlatESDTrack.h"
  35 #include "AliFlatExternalTrackParam.h"
  36 #include "AliESDtrack.h"
  37 #include "AliExternalTrackParam.h"
  38 #include "Riostream.h"
  39
  40
  41
  42
  43 // _______________________________________________________________________________________________________
  44
  45
  46 // _______________________________________________________________________________________________________
  47 Int_t AliFlatESDTrack::SetFromESDTrack(const AliESDtrack* track)
  48 {
  49   // Fill external track parameters
  50   fTrackParamMask = 0;
  51   fNTPCClusters = 0;
  52   fNITSClusters = 0;
  53   fContentSize = 0;
  54
  55   if( !track ) return 0;
  56
  57   Int_t iResult = SetExternalTrackParam( track,
  58                                          track->GetInnerParam(),
  59                                          track->GetTPCInnerParam(),
  60                                          track->GetOuterParam(),
  61                                          track->GetConstrainedParam(), NULL );
  62   fNTPCClusters = track->GetTPCNcls();
  63   fNITSClusters = track->GetITSNcls();
  64
  65   return iResult;
  66 }
  67
  68 // _______________________________________________________________________________________________________
  69 Int_t AliFlatESDTrack::SetExternalTrackParam(
  70                                              const AliExternalTrackParam* refittedParam,
  71                                              const AliExternalTrackParam* innerParam,
  72                                              const AliExternalTrackParam* innerTPC,
  73                                              const AliExternalTrackParam* outerParam,
  74                                              const AliExternalTrackParam* constrainedParam,
  75                                              const AliExternalTrackParam* outerITS
  76                                               ){
  77   // Fill external track parameters
  78
  79   fTrackParamMask = 0;
  80   fNTPCClusters = 0;
  81   fContentSize = 0;
  82
  83   Int_t iResult = 0;
  84
  85   Byte_t flag = 0x1;
  86   iResult = FillExternalTrackParam(refittedParam, flag);
  87
  88   flag = 0x2;
  89   iResult = FillExternalTrackParam(innerParam, flag);
  90
  91   flag = 0x4;
  92   iResult = FillExternalTrackParam(innerTPC, flag);
  93
  94   flag = 0x8;
  95   iResult = FillExternalTrackParam(outerParam, flag);
  96
  97   flag = 0x10;
  98   iResult = FillExternalTrackParam(constrainedParam, flag);
  99
 100   flag = 0x20;
 101   iResult = FillExternalTrackParam(outerITS, flag);
 102
 103   return iResult;
 104 }
 105
 106 // _______________________________________________________________________________________________________
 107 Int_t AliFlatESDTrack::FillExternalTrackParam(const AliExternalTrackParam* param, UShort_t flag) {
 108   // Fill external track parameters
 109
 110   if (!param) return -1;
 111
 112   //Printf("  DEBUG: CONTENT %d >> %p + 0x%07llx = %p", flag, fContent, fContentSize, fContent + fContentSize);
 113
 114   AliFlatExternalTrackParam * current = reinterpret_cast<AliFlatExternalTrackParam*> (fContent + fContentSize);
 115   current->SetExternalTrackParam( param );
 116   fTrackParamMask |= flag;
 117   fContentSize += sizeof(AliFlatExternalTrackParam);
 118
 119   return 0;
 120 }
 121
 122
 123 // _______________________________________________________________________________________________________
 124 Bool_t AliFlatESDTrack::GetXYZ(Double_t *p) const {
 125   const AliFlatExternalTrackParam *f = GetFlatTrackParam();
 126   if (!f) { return kFALSE; }
 127   p[0]=f->GetX();
 128   p[1]=f->GetY();
 129   p[2]=f->GetZ();
 130   return kTRUE;
 131 }