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121a60bd | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // class for ITS reconstruction // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
e62c1aea | 24 | #include "Riostream.h" |
121a60bd | 25 | #include "AliITSReconstructor.h" |
00a7cc50 | 26 | #include "AliRun.h" |
113c12f1 | 27 | #include "AliRawReader.h" |
7ef60110 | 28 | #include "AliESDEvent.h" |
29 | #include "AliESDpid.h" | |
6cae184e | 30 | #include "AliITSgeom.h" |
7d62fb64 | 31 | #include "AliITSLoader.h" |
e43c066c | 32 | #include "AliITStrackerMI.h" |
c0342e67 | 33 | #include "AliITStrackerV2.h" |
121a60bd | 34 | #include "AliITStrackerSA.h" |
121a60bd | 35 | #include "AliITSVertexerFast.h" |
c8735dd3 | 36 | #include "AliITSVertexerFixed.h" |
3acc14d5 | 37 | #include "AliITSVertexer3D.h" |
121a60bd | 38 | #include "AliITSVertexerZ.h" |
3acc14d5 | 39 | #include "AliITSVertexerCosmics.h" |
023ae34b | 40 | #include "AliITSInitGeometry.h" |
58e8dc31 | 41 | #include "AliITSTrackleterSPDEff.h" |
1f9831ab | 42 | #include "AliITSMultReconstructor.h" |
44347160 | 43 | |
121a60bd | 44 | ClassImp(AliITSReconstructor) |
44347160 | 45 | |
e62c1aea | 46 | //___________________________________________________________________________ |
94631b2f | 47 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
6cae184e | 48 | fDetTypeRec(0) |
94631b2f | 49 | { |
e62c1aea | 50 | // Default constructor |
e62c1aea | 51 | } |
52 | //___________________________________________________________________________ | |
53 | AliITSReconstructor::~AliITSReconstructor(){ | |
54 | // destructor | |
6cae184e | 55 | if(fDetTypeRec) delete fDetTypeRec; |
e62c1aea | 56 | } |
7ef60110 | 57 | //____________________________________________________________________________ |
58 | void AliITSReconstructor::GetPidSettings(AliESDpid *ESDpid) { | |
59 | // | |
60 | // pass PID settings from AliITSRecoParam to AliESDpid | |
61 | // | |
62 | Int_t pidOpt = GetRecoParam()->GetPID(); | |
6cae184e | 63 | |
7ef60110 | 64 | if(pidOpt==1){ |
3b1d8321 | 65 | AliDebug(1,"ITS LandauFitPID option has been selected\n"); |
7ef60110 | 66 | ESDpid->SetITSPIDmethod(AliESDpid::kITSLikelihood); |
67 | } | |
68 | else{ | |
3b1d8321 | 69 | AliDebug(1,"ITS default PID\n"); |
7ef60110 | 70 | ESDpid->SetITSPIDmethod(AliESDpid::kITSTruncMean); |
71 | } | |
72 | } | |
023ae34b | 73 | //______________________________________________________________________ |
d76c31f4 | 74 | void AliITSReconstructor::Init() { |
023ae34b | 75 | // Initalize this constructor bet getting/creating the objects |
76 | // nesseary for a proper ITS reconstruction. | |
77 | // Inputs: | |
d76c31f4 | 78 | // none. |
023ae34b | 79 | // Output: |
80 | // none. | |
81 | // Return: | |
82 | // none. | |
00a7cc50 | 83 | |
108bd0fe | 84 | AliITSInitGeometry initgeom; |
85 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
86 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
6cae184e | 87 | |
88 | fDetTypeRec = new AliITSDetTypeRec(); | |
89 | fDetTypeRec->SetITSgeom(geom); | |
90 | fDetTypeRec->SetDefaults(); | |
ed446fa3 | 91 | |
023ae34b | 92 | return; |
93 | } | |
6cae184e | 94 | |
121a60bd | 95 | //_____________________________________________________________________________ |
6cae184e | 96 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const |
121a60bd | 97 | { |
98 | // reconstruct clusters | |
99 | ||
9f9cae94 | 100 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); |
aa2e678a | 101 | TString recopt = GetRecoParam()->GetOptReco(); |
6cae184e | 102 | fDetTypeRec->SetTreeAddressD(digitsTree); |
103 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
104 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
aa2e678a | 105 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,recopt.Data(),cluFindOpt); |
121a60bd | 106 | } |
107 | ||
00a7cc50 | 108 | //_________________________________________________________________ |
6cae184e | 109 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const |
113c12f1 | 110 | { |
6cae184e | 111 | // reconstruct clusters from raw data |
aa2e678a | 112 | TString recopt = GetRecoParam()->GetOptReco(); |
6cae184e | 113 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); |
aa2e678a | 114 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree,recopt.Data()); |
113c12f1 | 115 | } |
1f9831ab | 116 | |
117 | //_____________________________________________________________________________ | |
118 | AliTrackleter* AliITSReconstructor::CreateMultFinder() const | |
119 | { | |
120 | // create the SPD trackeleter for mult. reconstruction | |
121 | AliITSMultReconstructor* multReco = new AliITSMultReconstructor(); | |
122 | multReco->SetHistOn(kFALSE); | |
123 | multReco->SetDetTypeRec(fDetTypeRec); | |
124 | return multReco; | |
125 | } | |
126 | ||
58e8dc31 | 127 | //_____________________________________________________________________________ |
128 | AliTracker* AliITSReconstructor::CreateTrackleter() const | |
129 | { | |
130 | // create the SPD trackeleter (for SPD PlaneEfficiency evaluation) | |
1a64bda6 | 131 | if(!GetRecoParam()->GetComputePlaneEff() || !GetRecoParam()->GetUseTrackletsPlaneEff()) return NULL; |
58e8dc31 | 132 | //Int_t trackerOpt = GetRecoParam()->GetTracker(); |
133 | AliTracker* trackleter; | |
134 | trackleter = new AliITSTrackleterSPDEff(); | |
135 | AliITSTrackleterSPDEff *spdtrackleter=(AliITSTrackleterSPDEff*)trackleter; | |
136 | // here set cuts (from RecoParam) | |
137 | if(GetRecoParam()->GetBkgTrackletsPlaneEff()) spdtrackleter->SetReflectClusterAroundZAxisForLayer(1,kTRUE); | |
138 | if(GetRecoParam()->GetMCTrackletsPlaneEff()) spdtrackleter->SetMC(); | |
139 | spdtrackleter->SetHistOn(); | |
7284b2b2 | 140 | spdtrackleter->SetPhiWindowL2(GetRecoParam()->GetTrackleterPhiWindowL2()); |
141 | spdtrackleter->SetZetaWindowL2(GetRecoParam()->GetTrackleterZetaWindowL2()); | |
58e8dc31 | 142 | spdtrackleter->SetPhiWindowL1(GetRecoParam()->GetTrackleterPhiWindowL1()); |
143 | spdtrackleter->SetZetaWindowL1(GetRecoParam()->GetTrackleterZetaWindowL1()); | |
144 | if(GetRecoParam()->GetUpdateOncePerEventPlaneEff()) spdtrackleter->SetUpdateOncePerEventPlaneEff(); | |
0ea92079 | 145 | spdtrackleter->SetMinContVtx(GetRecoParam()->GetMinContVtxPlaneEff()); |
58e8dc31 | 146 | return trackleter; |
147 | } | |
113c12f1 | 148 | |
121a60bd | 149 | //_____________________________________________________________________________ |
d76c31f4 | 150 | AliTracker* AliITSReconstructor::CreateTracker() const |
121a60bd | 151 | { |
152 | // create a ITS tracker | |
153 | ||
9f9cae94 | 154 | Int_t trackerOpt = GetRecoParam()->GetTracker(); |
e62c1aea | 155 | AliTracker* tracker; |
9f9cae94 | 156 | if (trackerOpt==1) { |
e341247d | 157 | tracker = new AliITStrackerMI(0); |
23197852 | 158 | AliITStrackerMI *mit=(AliITStrackerMI*)tracker; |
159 | mit->SetDetTypeRec(fDetTypeRec); | |
c0342e67 | 160 | } |
9f9cae94 | 161 | else if (trackerOpt==2) { |
c0342e67 | 162 | tracker = new AliITStrackerV2(0); |
e62c1aea | 163 | } |
164 | else { | |
cc088660 | 165 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 166 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
23197852 | 167 | sat->SetDetTypeRec(fDetTypeRec); |
9f9cae94 | 168 | if(GetRecoParam()->GetTrackerSAOnly()) sat->SetSAFlag(kTRUE); |
1966f03c | 169 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); |
58e8dc31 | 170 | if(GetRecoParam()->GetInwardFindingSA()){ |
171 | sat->SetInwardFinding(); | |
172 | sat->SetInnerStartLayer(GetRecoParam()->GetInnerStartLayerSA()); | |
173 | }else{ | |
12b1afb7 | 174 | sat->SetOutwardFinding(); |
175 | sat->SetOuterStartLayer(GetRecoParam()->GetOuterStartLayerSA()); | |
58e8dc31 | 176 | } |
12b1afb7 | 177 | sat->SetMinNPoints(GetRecoParam()->GetMinNPointsSA()); |
e62c1aea | 178 | } |
7d62fb64 | 179 | |
e62c1aea | 180 | return tracker; |
7d62fb64 | 181 | |
121a60bd | 182 | } |
183 | ||
184 | //_____________________________________________________________________________ | |
d76c31f4 | 185 | AliVertexer* AliITSReconstructor::CreateVertexer() const |
121a60bd | 186 | { |
187 | // create a ITS vertexer | |
188 | ||
b7bd9ab6 | 189 | AliITSVertexer *vptr = NULL; |
9f9cae94 | 190 | Int_t vtxOpt = GetRecoParam()->GetVertexer(); |
191 | if(vtxOpt==3){ | |
0c1383c1 | 192 | AliFatal("Option AliITSVertexerIons is no longer supported"); |
b7bd9ab6 | 193 | return vptr; |
121a60bd | 194 | } |
ff44c37c | 195 | else if(vtxOpt==4){ |
9364069b | 196 | Double_t smear[3]={GetRecoParam()->GetVertexerFastSmearX(), |
197 | GetRecoParam()->GetVertexerFastSmearY(), | |
198 | GetRecoParam()->GetVertexerFastSmearZ()}; | |
3b1d8321 | 199 | AliDebug(1,"AliITSVertexerFast has been selected"); |
ff44c37c | 200 | vptr = new AliITSVertexerFast(smear); |
121a60bd | 201 | } |
ff44c37c | 202 | else if(vtxOpt==1){ |
3b1d8321 | 203 | AliDebug(1,"AliITSVertexerZ has been selected"); |
1e6316d8 | 204 | AliITSVertexerZ* vtxrz = new AliITSVertexerZ(); |
205 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); | |
206 | if(pileupAlgo==3) vtxrz->SetSearchForPileup(kFALSE); | |
207 | vptr = vtxrz; | |
3acc14d5 | 208 | } |
ff44c37c | 209 | else if(vtxOpt==2){ |
3b1d8321 | 210 | AliDebug(1,"AliITSVertexerCosmics has been selected"); |
ff44c37c | 211 | vptr = new AliITSVertexerCosmics(); |
121a60bd | 212 | } |
ff44c37c | 213 | else if(vtxOpt==5){ |
3b1d8321 | 214 | AliDebug(1,"Vertex is fixed in the position of the TDI\n"); |
ff44c37c | 215 | vptr = new AliITSVertexerFixed("TDI"); |
c8735dd3 | 216 | } |
ff44c37c | 217 | else if(vtxOpt==6){ |
3b1d8321 | 218 | AliDebug(1,"Vertex is fixed in the position of the TED\n"); |
ff44c37c | 219 | vptr = new AliITSVertexerFixed("TED"); |
c8735dd3 | 220 | } |
ff44c37c | 221 | else { |
99f38bf6 | 222 | // by default an AliITSVertexer3D object is instatiated |
ff44c37c | 223 | AliITSVertexer3D* vtxr = new AliITSVertexer3D(); |
224 | Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ(); | |
225 | Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR(); | |
226 | vtxr->SetWideFiducialRegion(dzw,drw); | |
227 | Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ(); | |
228 | Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR(); | |
229 | vtxr->SetNarrowFiducialRegion(dzn,drn); | |
230 | Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut(); | |
231 | Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut(); | |
232 | vtxr->SetDeltaPhiCuts(dphil,dphit); | |
233 | Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut(); | |
234 | vtxr->SetDCACut(dcacut); | |
8b78365f | 235 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); |
236 | vtxr->SetPileupAlgo(pileupAlgo); | |
efe6147d | 237 | UChar_t highmultAlgo=GetRecoParam()->GetSPDVertexerHighMultAlgo(); |
238 | vtxr->SetHighMultAlgo(highmultAlgo); | |
3b1d8321 | 239 | AliDebug(1,Form("AliITSVertexer3D with pileup algo %d has been selected",pileupAlgo)); |
ff44c37c | 240 | vptr = vtxr; |
241 | } | |
242 | vptr->SetDetTypeRec(fDetTypeRec); | |
243 | return vptr; | |
121a60bd | 244 | } |
245 | ||
246 | //_____________________________________________________________________________ | |
1919a678 | 247 | void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree * /*clustersTree*/, |
7ef60110 | 248 | AliESDEvent* /* esd */) const |
121a60bd | 249 | { |
e62c1aea | 250 | // make PID, find V0s and cascade |
10d100d4 | 251 | /* Now done in AliESDpid |
1919a678 | 252 | if(fItsPID!=0) fItsPID->MakePID(esd); |
253 | else AliError("!! cannot do the PID !!"); | |
10d100d4 | 254 | */ |
6922a70f | 255 | } |