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 AliFlatESDTrack::AliFlatESDTrack() :
  42   // Default constructor
  43   fTrackParamMask(0),
  44   fNTPCClusters(0),
  45   fNITSClusters(0),
  46   fContentSize(0)
  47 {
  48 }
  49
  50 // _______________________________________________________________________________________________________
  51
  52
  53 // _______________________________________________________________________________________________________
  54 Int_t AliFlatESDTrack::Set(const AliESDtrack* track)
  55 {
  56   // Fill external track parameters
  57   fTrackParamMask = 0;
  58   fNTPCClusters = 0;
  59   fNITSClusters = 0;
  60   fContentSize = 0;
  61
  62   if( !track ) return 0;
  63
  64   Int_t iResult = SetExternalTrackParam( track,
  65                                          track->GetInnerParam(),
  66                                          track->GetTPCInnerParam(),
  67                                          track->GetOuterParam(),
  68                                          track->GetConstrainedParam(), NULL );
  69   fNITSClusters = track->GetTPCNcls();
  70
  71   return iResult;
  72 }
  73
  74 // _______________________________________________________________________________________________________
  75 Int_t AliFlatESDTrack::SetExternalTrackParam(
  76                                              const AliExternalTrackParam* refittedParam,
  77                                              const AliExternalTrackParam* innerParam,
  78                                              const AliExternalTrackParam* innerTPC,
  79                                              const AliExternalTrackParam* outerParam,
  80                                              const AliExternalTrackParam* constrainedParam,
  81                                              const AliExternalTrackParam* outerITS
  82                                               ){
  83   // Fill external track parameters
  84
  85   fTrackParamMask = 0;
  86   fNTPCClusters = 0;
  87   fContentSize = 0;
  88
  89   Int_t iResult = 0;
  90
  91   Byte_t flag = 0x1;
  92   iResult = FillExternalTrackParam(refittedParam, flag);
  93
  94   flag = 0x2;
  95   iResult = FillExternalTrackParam(innerParam, flag);
  96
  97   flag = 0x4;
  98   iResult = FillExternalTrackParam(innerTPC, flag);
  99
 100   flag = 0x8;
 101   iResult = FillExternalTrackParam(outerParam, flag);
 102
 103   flag = 0x10;
 104   iResult = FillExternalTrackParam(constrainedParam, flag);
 105
 106   flag = 0x20;
 107   iResult = FillExternalTrackParam(outerITS, flag);
 108
 109   return iResult;
 110 }
 111
 112 // _______________________________________________________________________________________________________
 113 Int_t AliFlatESDTrack::FillExternalTrackParam(const AliExternalTrackParam* param, UShort_t flag) {
 114   // Fill external track parameters
 115
 116   if (!param)
 117     return -1;
 118
 119   Printf("  DEBUG: CONTENT %d >> %p + 0x%07llx = %p", flag, fContent, fContentSize, fContent + fContentSize);
 120
 121   AliFlatExternalTrackParam * current = reinterpret_cast<AliFlatExternalTrackParam*> (fContent + fContentSize);
 122   current->SetAlpha(param->GetAlpha());
 123   current->SetX(param->GetX());
 124   current->SetY(param->GetY());
 125   current->SetZ(param->GetZ());
 126   current->SetSnp(param->GetSnp());
 127   current->SetTgl(param->GetTgl());
 128   current->SetSigned1Pt(param->GetSigned1Pt());
 129
 130   const Double_t *cov = param->GetCovariance();
 131   for (Int_t idx = 0; idx <15; ++idx)
 132     current->fC[idx] = cov[idx];
 133
 134   fTrackParamMask |= flag;
 135   fContentSize += sizeof(AliFlatExternalTrackParam);
 136
 137   return 0;
 138 }
 139
 140 // _______________________________________________________________________________________________________