1 /**************************************************************************
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2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
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4 * Author: The ALICE Off-line Project. *
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5 * Contributors are mentioned in the code where appropriate. *
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7 * Permission to use, copy, modify and distribute this software and its *
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8 * documentation strictly for non-commercial purposes is hereby granted *
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9 * without fee, provided that the above copyright notice appears in all *
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10 * copies and that both the copyright notice and this permission notice *
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11 * appear in the supporting documentation. The authors make no claims *
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12 * about the suitability of this software for any purpose. It is *
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13 * provided "as is" without express or implied warranty. *
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14 **************************************************************************/
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16 /* $Id: AliTRDtrackingSector.cxx 23810 2008-02-08 09:00:27Z hristov $ */
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18 ///////////////////////////////////////////////////////////////////////////////
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20 // Tracking data container for one sector //
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23 // Alex Bercuci <A.Bercuci@gsi.de> //
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24 // Markus Fasel <M.Fasel@gsi.de> //
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26 ///////////////////////////////////////////////////////////////////////////////
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28 #include "AliTRDReconstructor.h"
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29 #include "AliTRDtrackingSector.h"
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30 #include "AliTRDtrackingChamber.h"
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33 ClassImp(AliTRDtrackingSector)
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35 //_____________________________________________________________________________
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36 AliTRDtrackingSector::AliTRDtrackingSector()
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41 // Default constructor
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43 memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
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44 memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
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45 memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
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46 memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
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49 //_____________________________________________________________________________
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50 AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs)
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56 // AliTRDtrackingSector Constructor
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59 memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
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60 memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
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61 memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
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62 memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
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66 //_____________________________________________________________________________
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67 void AliTRDtrackingSector::Init(const AliTRDReconstructor *rec)
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69 // Steer building of tracking chambers and build tracking sector.
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70 // Propagate radial position information (calibration/alignment aware) from chambers to sector level
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73 AliTRDchamberTimeBin *tb = NULL;
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74 AliTRDtrackingChamber **tc = &fChamber[0];
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75 for(Int_t ic = 0; (ic<AliTRDgeometry::kNdets) && (*tc); ic++, tc++){
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76 for(Int_t itb=0; itb<AliTRDseedV1::kNtb; itb++){
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77 if(!(tb = (*tc)->GetTB(itb))) continue;
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78 tb->SetReconstructor(rec);
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80 (*tc)->Build(fGeom, rec->IsHLT());
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84 for(int il=0; il<AliTRDgeometry::kNlayer; il++){
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85 fX0[il] = 0.; nl = 0;
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86 for(int is=0; is<AliTRDgeometry::kNstack; is++){
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87 Int_t idx = is*AliTRDgeometry::kNlayer + il;
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88 if(fIndex[idx]<0) continue;
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89 fX0[il] += GetChamber(fIndex[idx])->GetX();
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93 //printf("Could not estimate radial position of plane %d in sector %d.\n", ip, fSector);
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96 fX0[il] /= Float_t(nl);
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102 //_____________________________________________________________________________
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103 void AliTRDtrackingSector::Clear(const Option_t *opt)
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105 // Reset counters and steer chamber clear
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107 AliTRDtrackingChamber **tc = &fChamber[0];
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108 for(Int_t ich=0; ich<fN; ich++, tc++){
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110 delete (*tc); (*tc) = NULL; // I would avoid
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112 memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
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116 //_____________________________________________________________________________
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117 AliTRDtrackingChamber* AliTRDtrackingSector::GetChamber(Int_t stack, Int_t layer, Bool_t build)
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119 // Return chamber at position (stack, plane) in current
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120 // sector or build a new one if it is not already created
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122 Int_t ch = stack*AliTRDgeometry::kNlayer + layer;
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123 if(fIndex[ch] >= 0) return fChamber[Int_t(fIndex[ch])];
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124 else if(!build) return NULL;
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126 // CHAMBER HAS TO BE BUILD
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127 Int_t rch = ch;do rch--; while(rch>=0 && fIndex[rch]<0);
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128 fIndex[ch] = rch >=0 ? fIndex[rch]+1 : 0;
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131 memmove(&fChamber[Int_t(fIndex[ch])+1], &fChamber[Int_t(fIndex[ch])], (AliTRDgeometry::kNdets-fIndex[ch]-1)*sizeof(void*));
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132 for(Int_t ic = ch+1; ic<AliTRDgeometry::kNdets; ic++) fIndex[ic] += fIndex[ic] >= 0 ? 1 : 0;
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134 AliTRDtrackingChamber *chmb = fChamber[Int_t(fIndex[ch])] = new AliTRDtrackingChamber();
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135 chmb->SetDetector(AliTRDgeometry::GetDetector(layer, stack, fSector));
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139 //_____________________________________________________________________________
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140 AliTRDtrackingChamber** AliTRDtrackingSector::GetStack(Int_t stack)
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142 // Return chamber at position (stack, plane) in current
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143 // sector or build a new one if it is not already created
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145 if(stack<0 || stack>=AliTRDgeometry::kNstack) return NULL;
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148 for(int il=0; il<AliTRDgeometry::kNlayer; il++){
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149 ich = stack*AliTRDgeometry::kNlayer + il;
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150 if(fIndex[ich] < 0) fStack[il] = NULL;
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152 fStack[il] = fChamber[Int_t(fIndex[ich])];
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157 return n ? &fStack[0] : NULL;
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160 //_____________________________________________________________________________
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161 void AliTRDtrackingSector::Print(Option_t *opt) const
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163 // Dump info about this tracking sector and the tracking chamber within
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166 printf("\n\tSector[%2d]\n", fSector);
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167 for(int il=0; il<AliTRDgeometry::kNlayer; il++){
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168 for(int is =0; is<AliTRDgeometry::kNstack; is++){
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169 Int_t ch = is*AliTRDgeometry::kNlayer + il;
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170 if(opt) fChamber[Int_t(fIndex[ch])]->Print(opt);
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171 else printf("%2d[%2d] ", fIndex[ch], fIndex[ch]>=0 ? fChamber[Int_t(fIndex[ch])]->GetNClusters() : 0);
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173 if(!opt) printf("\n");
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