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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 | ||
24 | #include "Riostream.h" | |
25 | #include "AliITSReconstructor.h" | |
26 | #include "AliRun.h" | |
27 | #include "AliRawReader.h" | |
28 | #include "AliESDEvent.h" | |
29 | #include "AliESDpid.h" | |
30 | #include "AliITSDetTypeRec.h" | |
31 | #include "AliITSgeom.h" | |
32 | #include "AliITSLoader.h" | |
33 | #include "AliITStrackerMI.h" | |
34 | #include "AliITStrackerV2.h" | |
35 | #include "AliITStrackerSA.h" | |
36 | #include "AliITSVertexerIons.h" | |
37 | #include "AliITSVertexerFast.h" | |
38 | #include "AliITSVertexerFixed.h" | |
39 | #include "AliITSVertexer3D.h" | |
40 | #include "AliITSVertexerZ.h" | |
41 | #include "AliITSVertexerCosmics.h" | |
42 | #include "AliITSInitGeometry.h" | |
43 | #include "AliITSTrackleterSPDEff.h" | |
44 | ||
45 | ||
46 | ClassImp(AliITSReconstructor) | |
47 | ||
48 | //___________________________________________________________________________ | |
49 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), | |
50 | fDetTypeRec(0) | |
51 | { | |
52 | // Default constructor | |
53 | } | |
54 | //___________________________________________________________________________ | |
55 | AliITSReconstructor::~AliITSReconstructor(){ | |
56 | // destructor | |
57 | if(fDetTypeRec) delete fDetTypeRec; | |
58 | } | |
59 | //____________________________________________________________________________ | |
60 | void AliITSReconstructor::GetPidSettings(AliESDpid *ESDpid) { | |
61 | // | |
62 | // pass PID settings from AliITSRecoParam to AliESDpid | |
63 | // | |
64 | Int_t pidOpt = GetRecoParam()->GetPID(); | |
65 | ||
66 | if(pidOpt==1){ | |
67 | AliInfo("ITS LandauFitPID option has been selected\n"); | |
68 | ESDpid->SetITSPIDmethod(AliESDpid::kITSLikelihood); | |
69 | } | |
70 | else{ | |
71 | AliInfo("ITS default PID\n"); | |
72 | ESDpid->SetITSPIDmethod(AliESDpid::kITSTruncMean); | |
73 | } | |
74 | } | |
75 | //______________________________________________________________________ | |
76 | void AliITSReconstructor::Init() { | |
77 | // Initalize this constructor bet getting/creating the objects | |
78 | // nesseary for a proper ITS reconstruction. | |
79 | // Inputs: | |
80 | // none. | |
81 | // Output: | |
82 | // none. | |
83 | // Return: | |
84 | // none. | |
85 | ||
86 | AliITSInitGeometry initgeom; | |
87 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
88 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
89 | ||
90 | fDetTypeRec = new AliITSDetTypeRec(); | |
91 | fDetTypeRec->SetITSgeom(geom); | |
92 | fDetTypeRec->SetDefaults(); | |
93 | ||
94 | return; | |
95 | } | |
96 | ||
97 | //_____________________________________________________________________________ | |
98 | void AliITSReconstructor::Reconstruct(TTree *digitsTree, TTree *clustersTree) const | |
99 | { | |
100 | // reconstruct clusters | |
101 | ||
102 | Int_t cluFindOpt = GetRecoParam()->GetClusterFinder(); | |
103 | ||
104 | fDetTypeRec->SetTreeAddressD(digitsTree); | |
105 | fDetTypeRec->MakeBranch(clustersTree,"R"); | |
106 | fDetTypeRec->SetTreeAddressR(clustersTree); | |
107 | fDetTypeRec->DigitsToRecPoints(digitsTree,clustersTree,0,"All",cluFindOpt); | |
108 | } | |
109 | ||
110 | //_________________________________________________________________ | |
111 | void AliITSReconstructor::Reconstruct(AliRawReader* rawReader, TTree *clustersTree) const | |
112 | { | |
113 | // reconstruct clusters from raw data | |
114 | ||
115 | fDetTypeRec->SetDefaultClusterFindersV2(kTRUE); | |
116 | fDetTypeRec->DigitsToRecPoints(rawReader,clustersTree); | |
117 | } | |
118 | //_____________________________________________________________________________ | |
119 | AliTracker* AliITSReconstructor::CreateTrackleter() const | |
120 | { | |
121 | // create the SPD trackeleter (for SPD PlaneEfficiency evaluation) | |
122 | if(!GetRecoParam()->GetComputePlaneEff() || !GetRecoParam()->GetUseTrackletsPlaneEff()) return NULL; | |
123 | //Int_t trackerOpt = GetRecoParam()->GetTracker(); | |
124 | AliTracker* trackleter; | |
125 | trackleter = new AliITSTrackleterSPDEff(); | |
126 | AliITSTrackleterSPDEff *spdtrackleter=(AliITSTrackleterSPDEff*)trackleter; | |
127 | // here set cuts (from RecoParam) | |
128 | if(GetRecoParam()->GetBkgTrackletsPlaneEff()) spdtrackleter->SetReflectClusterAroundZAxisForLayer(1,kTRUE); | |
129 | if(GetRecoParam()->GetMCTrackletsPlaneEff()) spdtrackleter->SetMC(); | |
130 | spdtrackleter->SetHistOn(); | |
131 | spdtrackleter->SetPhiWindowL2(GetRecoParam()->GetTrackleterPhiWindowL2()); | |
132 | spdtrackleter->SetZetaWindowL2(GetRecoParam()->GetTrackleterZetaWindowL2()); | |
133 | spdtrackleter->SetPhiWindowL1(GetRecoParam()->GetTrackleterPhiWindowL1()); | |
134 | spdtrackleter->SetZetaWindowL1(GetRecoParam()->GetTrackleterZetaWindowL1()); | |
135 | if(GetRecoParam()->GetUpdateOncePerEventPlaneEff()) spdtrackleter->SetUpdateOncePerEventPlaneEff(); | |
136 | spdtrackleter->SetMinContVtx(GetRecoParam()->GetMinContVtxPlaneEff()); | |
137 | return trackleter; | |
138 | } | |
139 | ||
140 | //_____________________________________________________________________________ | |
141 | AliTracker* AliITSReconstructor::CreateTracker() const | |
142 | { | |
143 | // create a ITS tracker | |
144 | ||
145 | Int_t trackerOpt = GetRecoParam()->GetTracker(); | |
146 | AliTracker* tracker; | |
147 | if (trackerOpt==1) { | |
148 | tracker = new AliITStrackerMI(0); | |
149 | AliITStrackerMI *mit=(AliITStrackerMI*)tracker; | |
150 | mit->SetDetTypeRec(fDetTypeRec); | |
151 | } | |
152 | else if (trackerOpt==2) { | |
153 | tracker = new AliITStrackerV2(0); | |
154 | } | |
155 | else { | |
156 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI | |
157 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; | |
158 | sat->SetDetTypeRec(fDetTypeRec); | |
159 | if(GetRecoParam()->GetTrackerSAOnly()) sat->SetSAFlag(kTRUE); | |
160 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
161 | if(GetRecoParam()->GetInwardFindingSA()){ | |
162 | sat->SetInwardFinding(); | |
163 | sat->SetInnerStartLayer(GetRecoParam()->GetInnerStartLayerSA()); | |
164 | }else{ | |
165 | sat->SetOutwardFinding(); | |
166 | sat->SetOuterStartLayer(GetRecoParam()->GetOuterStartLayerSA()); | |
167 | } | |
168 | sat->SetMinNPoints(GetRecoParam()->GetMinNPointsSA()); | |
169 | } | |
170 | ||
171 | return tracker; | |
172 | ||
173 | } | |
174 | ||
175 | //_____________________________________________________________________________ | |
176 | AliVertexer* AliITSReconstructor::CreateVertexer() const | |
177 | { | |
178 | // create a ITS vertexer | |
179 | ||
180 | AliITSVertexer *vptr; | |
181 | Int_t vtxOpt = GetRecoParam()->GetVertexer(); | |
182 | if(vtxOpt==3){ | |
183 | AliInfo("AliITSVertexerIons has been selected"); | |
184 | vptr = new AliITSVertexerIons(); | |
185 | } | |
186 | else if(vtxOpt==4){ | |
187 | Double_t smear[3]={GetRecoParam()->GetVertexerFastSmearX(), | |
188 | GetRecoParam()->GetVertexerFastSmearY(), | |
189 | GetRecoParam()->GetVertexerFastSmearZ()}; | |
190 | AliInfo("AliITSVertexerFast has been selected"); | |
191 | vptr = new AliITSVertexerFast(smear); | |
192 | } | |
193 | else if(vtxOpt==1){ | |
194 | AliInfo("AliITSVertexerZ has been selected"); | |
195 | vptr = new AliITSVertexerZ(); | |
196 | } | |
197 | else if(vtxOpt==2){ | |
198 | AliInfo("AliITSVertexerCosmics has been selected"); | |
199 | vptr = new AliITSVertexerCosmics(); | |
200 | } | |
201 | else if(vtxOpt==5){ | |
202 | AliInfo("Vertex is fixed in the position of the TDI\n"); | |
203 | vptr = new AliITSVertexerFixed("TDI"); | |
204 | } | |
205 | else if(vtxOpt==6){ | |
206 | AliInfo("Vertex is fixed in the position of the TED\n"); | |
207 | vptr = new AliITSVertexerFixed("TED"); | |
208 | } | |
209 | else { | |
210 | // by default an AliITSVertexer3D object is instatiated | |
211 | AliITSVertexer3D* vtxr = new AliITSVertexer3D(); | |
212 | Float_t dzw=GetRecoParam()->GetVertexer3DWideFiducialRegionZ(); | |
213 | Float_t drw=GetRecoParam()->GetVertexer3DWideFiducialRegionR(); | |
214 | vtxr->SetWideFiducialRegion(dzw,drw); | |
215 | Float_t dzn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionZ(); | |
216 | Float_t drn=GetRecoParam()->GetVertexer3DNarrowFiducialRegionR(); | |
217 | vtxr->SetNarrowFiducialRegion(dzn,drn); | |
218 | Float_t dphil=GetRecoParam()->GetVertexer3DLooseDeltaPhiCut(); | |
219 | Float_t dphit=GetRecoParam()->GetVertexer3DTightDeltaPhiCut(); | |
220 | vtxr->SetDeltaPhiCuts(dphil,dphit); | |
221 | Float_t dcacut=GetRecoParam()->GetVertexer3DDCACut(); | |
222 | vtxr->SetDCACut(dcacut); | |
223 | Int_t pileupAlgo=GetRecoParam()->GetSPDVertexerPileupAlgo(); | |
224 | vtxr->SetPileupAlgo(pileupAlgo); | |
225 | AliInfo(Form("AliITSVertexer3D with pileup algo %d has been selected",pileupAlgo)); | |
226 | vptr = vtxr; | |
227 | } | |
228 | vptr->SetDetTypeRec(fDetTypeRec); | |
229 | return vptr; | |
230 | } | |
231 | ||
232 | //_____________________________________________________________________________ | |
233 | void AliITSReconstructor::FillESD(TTree * /*digitsTree*/, TTree * /*clustersTree*/, | |
234 | AliESDEvent* /* esd */) const | |
235 | { | |
236 | // make PID, find V0s and cascade | |
237 | /* Now done in AliESDpid | |
238 | if(fItsPID!=0) fItsPID->MakePID(esd); | |
239 | else AliError("!! cannot do the PID !!"); | |
240 | */ | |
241 | } |