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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" |
f4f84117 | 39 | #include "AliITSVertexerZD.h" |
3acc14d5 | 40 | #include "AliITSVertexerCosmics.h" |
023ae34b | 41 | #include "AliITSInitGeometry.h" |
58e8dc31 | 42 | #include "AliITSTrackleterSPDEff.h" |
1f9831ab | 43 | #include "AliITSMultReconstructor.h" |
44347160 | 44 | |
121a60bd | 45 | ClassImp(AliITSReconstructor) |
44347160 | 46 | |
e62c1aea | 47 | //___________________________________________________________________________ |
94631b2f | 48 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), |
6cae184e | 49 | fDetTypeRec(0) |
94631b2f | 50 | { |
e62c1aea | 51 | // Default constructor |
e62c1aea | 52 | } |
53 | //___________________________________________________________________________ | |
54 | AliITSReconstructor::~AliITSReconstructor(){ | |
55 | // destructor | |
6cae184e | 56 | if(fDetTypeRec) delete fDetTypeRec; |
e62c1aea | 57 | } |
7ef60110 | 58 | //____________________________________________________________________________ |
59 | void AliITSReconstructor::GetPidSettings(AliESDpid *ESDpid) { | |
60 | // | |
61 | // pass PID settings from AliITSRecoParam to AliESDpid | |
62 | // | |
63 | Int_t pidOpt = GetRecoParam()->GetPID(); | |
6cae184e | 64 | |
7ef60110 | 65 | if(pidOpt==1){ |
3b1d8321 | 66 | AliDebug(1,"ITS LandauFitPID option has been selected\n"); |
7ef60110 | 67 | ESDpid->SetITSPIDmethod(AliESDpid::kITSLikelihood); |
68 | } | |
69 | else{ | |
3b1d8321 | 70 | AliDebug(1,"ITS default PID\n"); |
7ef60110 | 71 | ESDpid->SetITSPIDmethod(AliESDpid::kITSTruncMean); |
72 | } | |
73 | } | |
023ae34b | 74 | //______________________________________________________________________ |
d76c31f4 | 75 | void AliITSReconstructor::Init() { |
023ae34b | 76 | // Initalize this constructor bet getting/creating the objects |
77 | // nesseary for a proper ITS reconstruction. | |
78 | // Inputs: | |
d76c31f4 | 79 | // none. |
023ae34b | 80 | // Output: |
81 | // none. | |
82 | // Return: | |
83 | // none. | |
00a7cc50 | 84 | |
108bd0fe | 85 | AliITSInitGeometry initgeom; |
86 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
87 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
6cae184e | 88 | |
89 | fDetTypeRec = new AliITSDetTypeRec(); | |
90 | fDetTypeRec->SetITSgeom(geom); | |
91 | fDetTypeRec->SetDefaults(); | |
ed446fa3 | 92 | |
023ae34b | 93 | return; |
94 | } | |
6cae184e | 95 | |
121a60bd | 96 | //_____________________________________________________________________________ |
6cae184e | 97 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const |
121a60bd | 98 | { |
99 | // reconstruct clusters | |
100 | ||
9f9cae94 | 101 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); |
05b25e73 | 102 | // cluFindOpt = 0 --> ClusterFinder V2 |
103 | // cluFindOpt = 1 --> as cluFindOpt = 0 for SPD and SSD. Fast SDD algo | |
aa2e678a | 104 | TString recopt = GetRecoParam()->GetOptReco(); |
6cae184e | 105 | fDetTypeRec->SetTreeAddressD(digitsTree); |
106 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
107 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
aa2e678a | 108 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,recopt.Data(),cluFindOpt); |
121a60bd | 109 | } |
110 | ||
00a7cc50 | 111 | //_________________________________________________________________ |
6cae184e | 112 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const |
113c12f1 | 113 | { |
6cae184e | 114 | // reconstruct clusters from raw data |
05b25e73 | 115 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); |
116 | // cluFindOpt = 0 --> ClusterFinder V2 | |
117 | // cluFindOpt = 1 --> as cluFindOpt = 0 for SPD and SSD. Fast SDD algo | |
aa2e678a | 118 | TString recopt = GetRecoParam()->GetOptReco(); |
05b25e73 | 119 | if(cluFindOpt == 0){ |
120 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); | |
121 | } | |
122 | else { | |
123 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE,kTRUE); | |
124 | } | |
aa2e678a | 125 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree,recopt.Data()); |
113c12f1 | 126 | } |
1f9831ab | 127 | |
128 | //_____________________________________________________________________________ | |
129 | AliTrackleter* AliITSReconstructor::CreateMultFinder() const | |
130 | { | |
131 | // create the SPD trackeleter for mult. reconstruction | |
132 | AliITSMultReconstructor* multReco = new AliITSMultReconstructor(); | |
133 | multReco->SetHistOn(kFALSE); | |
134 | multReco->SetDetTypeRec(fDetTypeRec); | |
135 | return multReco; | |
136 | } | |
137 | ||
58e8dc31 | 138 | //_____________________________________________________________________________ |
139 | AliTracker* AliITSReconstructor::CreateTrackleter() const | |
140 | { | |
141 | // create the SPD trackeleter (for SPD PlaneEfficiency evaluation) | |
1a64bda6 | 142 | if(!GetRecoParam()->GetComputePlaneEff() || !GetRecoParam()->GetUseTrackletsPlaneEff()) return NULL; |
58e8dc31 | 143 | //Int_t trackerOpt = GetRecoParam()->GetTracker(); |
144 | AliTracker* trackleter; | |
145 | trackleter = new AliITSTrackleterSPDEff(); | |
146 | AliITSTrackleterSPDEff *spdtrackleter=(AliITSTrackleterSPDEff*)trackleter; | |
147 | // here set cuts (from RecoParam) | |
148 | if(GetRecoParam()->GetBkgTrackletsPlaneEff()) spdtrackleter->SetReflectClusterAroundZAxisForLayer(1,kTRUE); | |
149 | if(GetRecoParam()->GetMCTrackletsPlaneEff()) spdtrackleter->SetMC(); | |
150 | spdtrackleter->SetHistOn(); | |
7284b2b2 | 151 | spdtrackleter->SetPhiWindowL2(GetRecoParam()->GetTrackleterPhiWindowL2()); |
152 | spdtrackleter->SetZetaWindowL2(GetRecoParam()->GetTrackleterZetaWindowL2()); | |
58e8dc31 | 153 | spdtrackleter->SetPhiWindowL1(GetRecoParam()->GetTrackleterPhiWindowL1()); |
154 | spdtrackleter->SetZetaWindowL1(GetRecoParam()->GetTrackleterZetaWindowL1()); | |
155 | if(GetRecoParam()->GetUpdateOncePerEventPlaneEff()) spdtrackleter->SetUpdateOncePerEventPlaneEff(); | |
0ea92079 | 156 | spdtrackleter->SetMinContVtx(GetRecoParam()->GetMinContVtxPlaneEff()); |
58e8dc31 | 157 | return trackleter; |
158 | } | |
113c12f1 | 159 | |
121a60bd | 160 | //_____________________________________________________________________________ |
d76c31f4 | 161 | AliTracker* AliITSReconstructor::CreateTracker() const |
121a60bd | 162 | { |
163 | // create a ITS tracker | |
164 | ||
9f9cae94 | 165 | Int_t trackerOpt = GetRecoParam()->GetTracker(); |
e62c1aea | 166 | AliTracker* tracker; |
9f9cae94 | 167 | if (trackerOpt==1) { |
e341247d | 168 | tracker = new AliITStrackerMI(0); |
23197852 | 169 | AliITStrackerMI *mit=(AliITStrackerMI*)tracker; |
170 | mit->SetDetTypeRec(fDetTypeRec); | |
c0342e67 | 171 | } |
9f9cae94 | 172 | else if (trackerOpt==2) { |
c0342e67 | 173 | tracker = new AliITStrackerV2(0); |
e62c1aea | 174 | } |
175 | else { | |
cc088660 | 176 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI |
1966f03c | 177 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; |
23197852 | 178 | sat->SetDetTypeRec(fDetTypeRec); |
9f9cae94 | 179 | if(GetRecoParam()->GetTrackerSAOnly()) sat->SetSAFlag(kTRUE); |
1966f03c | 180 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); |
58e8dc31 | 181 | if(GetRecoParam()->GetInwardFindingSA()){ |
182 | sat->SetInwardFinding(); | |
183 | sat->SetInnerStartLayer(GetRecoParam()->GetInnerStartLayerSA()); | |
184 | }else{ | |
12b1afb7 | 185 | sat->SetOutwardFinding(); |
186 | sat->SetOuterStartLayer(GetRecoParam()->GetOuterStartLayerSA()); | |
58e8dc31 | 187 | } |
12b1afb7 | 188 | sat->SetMinNPoints(GetRecoParam()->GetMinNPointsSA()); |
e62c1aea | 189 | } |
7d62fb64 | 190 | |
e62c1aea | 191 | return tracker; |
7d62fb64 | 192 | |
121a60bd | 193 | } |
194 | ||
195 | //_____________________________________________________________________________ | |
d76c31f4 | 196 | AliVertexer* AliITSReconstructor::CreateVertexer() const |
121a60bd | 197 | { |
198 | // create a ITS vertexer | |
199 | ||
b7bd9ab6 | 200 | AliITSVertexer *vptr = NULL; |
9f9cae94 | 201 | Int_t vtxOpt = GetRecoParam()->GetVertexer(); |
202 | if(vtxOpt==3){ | |
0c1383c1 | 203 | AliFatal("Option AliITSVertexerIons is no longer supported"); |
b7bd9ab6 | 204 | return vptr; |
121a60bd | 205 | } |
ff44c37c | 206 | else if(vtxOpt==4){ |
9364069b | 207 | Double_t smear[3]={GetRecoParam()->GetVertexerFastSmearX(), |
208 | GetRecoParam()->GetVertexerFastSmearY(), | |
209 | GetRecoParam()->GetVertexerFastSmearZ()}; | |
3b1d8321 | 210 | AliDebug(1,"AliITSVertexerFast has been selected"); |
ff44c37c | 211 | vptr = new AliITSVertexerFast(smear); |
121a60bd | 212 | } |
ff44c37c | 213 | else if(vtxOpt==1){ |
3b1d8321 | 214 | AliDebug(1,"AliITSVertexerZ has been selected"); |
1e6316d8 | 215 | AliITSVertexerZ* vtxrz = new AliITSVertexerZ(); |
216 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); | |
217 | if(pileupAlgo==3) vtxrz->SetSearchForPileup(kFALSE); | |
218 | vptr = vtxrz; | |
3acc14d5 | 219 | } |
ff44c37c | 220 | else if(vtxOpt==2){ |
3b1d8321 | 221 | AliDebug(1,"AliITSVertexerCosmics has been selected"); |
ff44c37c | 222 | vptr = new AliITSVertexerCosmics(); |
121a60bd | 223 | } |
ff44c37c | 224 | else if(vtxOpt==5){ |
3b1d8321 | 225 | AliDebug(1,"Vertex is fixed in the position of the TDI\n"); |
ff44c37c | 226 | vptr = new AliITSVertexerFixed("TDI"); |
c8735dd3 | 227 | } |
ff44c37c | 228 | else if(vtxOpt==6){ |
3b1d8321 | 229 | AliDebug(1,"Vertex is fixed in the position of the TED\n"); |
ff44c37c | 230 | vptr = new AliITSVertexerFixed("TED"); |
c8735dd3 | 231 | } |
f4f84117 | 232 | else if(vtxOpt==7){ |
233 | AliDebug(1,"VertexerZD: reconstruction of the Z coordinate with SDD \n"); | |
234 | AliITSVertexerZD*vtxrz = new AliITSVertexerZD(); | |
235 | vtxrz->SetSearchForPileup(kFALSE); | |
236 | vptr = vtxrz; | |
237 | } | |
ff44c37c | 238 | else { |
99f38bf6 | 239 | // by default an AliITSVertexer3D object is instatiated |
4f40f207 | 240 | AliITSVertexer3D* vtxr = |
241 | new AliITSVertexer3D(GetRecoParam()->GetVertexer3DWideFiducialRegionZ()); | |
ff44c37c | 242 | Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ(); |
243 | Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR(); | |
244 | vtxr->SetWideFiducialRegion(dzw,drw); | |
245 | Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ(); | |
246 | Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR(); | |
247 | vtxr->SetNarrowFiducialRegion(dzn,drn); | |
248 | Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut(); | |
249 | Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut(); | |
250 | vtxr->SetDeltaPhiCuts(dphil,dphit); | |
251 | Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut(); | |
252 | vtxr->SetDCACut(dcacut); | |
8b78365f | 253 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); |
254 | vtxr->SetPileupAlgo(pileupAlgo); | |
efe6147d | 255 | UChar_t highmultAlgo=GetRecoParam()->GetSPDVertexerHighMultAlgo(); |
256 | vtxr->SetHighMultAlgo(highmultAlgo); | |
3b1d8321 | 257 | AliDebug(1,Form("AliITSVertexer3D with pileup algo %d has been selected",pileupAlgo)); |
ff44c37c | 258 | vptr = vtxr; |
259 | } | |
260 | vptr->SetDetTypeRec(fDetTypeRec); | |
261 | return vptr; | |
121a60bd | 262 | } |
263 | ||
264 | //_____________________________________________________________________________ | |
1919a678 | 265 | void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree * /*clustersTree*/, |
7ef60110 | 266 | AliESDEvent* /* esd */) const |
121a60bd | 267 | { |
e62c1aea | 268 | // make PID, find V0s and cascade |
10d100d4 | 269 | /* Now done in AliESDpid |
1919a678 | 270 | if(fItsPID!=0) fItsPID->MakePID(esd); |
271 | else AliError("!! cannot do the PID !!"); | |
10d100d4 | 272 | */ |
6922a70f | 273 | } |