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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 "AliRunLoader.h" | |
28 | #include "AliRawReader.h" | |
29 | #include "AliITSDetTypeRec.h" | |
30 | #include "AliITSLoader.h" | |
31 | #include "AliITStrackerMI.h" | |
32 | #include "AliITStrackerSA.h" | |
33 | #include "AliITSVertexerIons.h" | |
34 | #include "AliITSVertexerFast.h" | |
35 | #include "AliITSVertexerPPZ.h" | |
36 | #include "AliITSVertexerZ.h" | |
37 | #include "AliESD.h" | |
38 | #include "AliITSpidESD.h" | |
39 | #include "AliITSpidESD1.h" | |
40 | #include "AliITSpidESD2.h" | |
41 | #include "AliITSInitGeometry.h" | |
42 | ||
43 | ClassImp(AliITSReconstructor) | |
44 | ||
45 | //___________________________________________________________________________ | |
46 | AliITSReconstructor::AliITSReconstructor() : AliReconstructor(), | |
47 | fItsPID(0) | |
48 | { | |
49 | // Default constructor | |
50 | } | |
51 | //___________________________________________________________________________ | |
52 | AliITSReconstructor::~AliITSReconstructor(){ | |
53 | // destructor | |
54 | delete fItsPID; | |
55 | } | |
56 | //______________________________________________________________________ | |
57 | AliITSReconstructor::AliITSReconstructor(const AliITSReconstructor &ob) :AliReconstructor(ob), | |
58 | fItsPID(ob.fItsPID) | |
59 | { | |
60 | // Copy constructor | |
61 | } | |
62 | ||
63 | //______________________________________________________________________ | |
64 | AliITSReconstructor& AliITSReconstructor::operator=(const AliITSReconstructor& ob ){ | |
65 | // Assignment operator | |
66 | this->~AliITSReconstructor(); | |
67 | new(this) AliITSReconstructor(ob); | |
68 | return *this; | |
69 | } | |
70 | //______________________________________________________________________ | |
71 | void AliITSReconstructor::Init(AliRunLoader *runLoader) const{ | |
72 | // Initalize this constructor bet getting/creating the objects | |
73 | // nesseary for a proper ITS reconstruction. | |
74 | // Inputs: | |
75 | // AliRunLoader *runLoader Pointer to the run loader to allow | |
76 | // the getting of files/folders data | |
77 | // needed to do reconstruction | |
78 | // Output: | |
79 | // none. | |
80 | // Return: | |
81 | // none. | |
82 | ||
83 | AliITSInitGeometry initgeom; | |
84 | AliITSgeom *geom = initgeom.CreateAliITSgeom(); | |
85 | AliInfo(Form("Geometry name: %s",(initgeom.GetGeometryName()).Data())); | |
86 | AliITSLoader* loader = static_cast<AliITSLoader*> | |
87 | (runLoader->GetLoader("ITSLoader")); | |
88 | if (!loader) { | |
89 | Error("Init", "ITS loader not found"); | |
90 | return; | |
91 | } | |
92 | loader->SetITSgeom(geom); | |
93 | return; | |
94 | } | |
95 | //_____________________________________________________________________________ | |
96 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader) const | |
97 | { | |
98 | // reconstruct clusters | |
99 | ||
100 | ||
101 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); | |
102 | if (!loader) { | |
103 | Error("Reconstruct", "ITS loader not found"); | |
104 | return; | |
105 | } | |
106 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); | |
107 | rec->SetDefaults(); | |
108 | ||
109 | loader->LoadRecPoints("recreate"); | |
110 | loader->LoadDigits("read"); | |
111 | runLoader->LoadKinematics(); | |
112 | TString option = GetOption(); | |
113 | Bool_t clusfinder=kTRUE; // Default: V2 cluster finder | |
114 | if(option.Contains("OrigCF"))clusfinder=kFALSE; | |
115 | ||
116 | Int_t nEvents = runLoader->GetNumberOfEvents(); | |
117 | ||
118 | for (Int_t iEvent = 0; iEvent < nEvents; iEvent++) { | |
119 | runLoader->GetEvent(iEvent); | |
120 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
121 | rec->MakeBranch("R"); | |
122 | rec->SetTreeAddress(); | |
123 | rec->DigitsToRecPoints(iEvent,0,"All",clusfinder); | |
124 | } | |
125 | ||
126 | loader->UnloadRecPoints(); | |
127 | loader->UnloadDigits(); | |
128 | runLoader->UnloadKinematics(); | |
129 | } | |
130 | ||
131 | //_________________________________________________________________ | |
132 | void AliITSReconstructor::Reconstruct(AliRunLoader* runLoader, | |
133 | AliRawReader* rawReader) const | |
134 | { | |
135 | // reconstruct clusters | |
136 | ||
137 | ||
138 | AliITSLoader* loader = static_cast<AliITSLoader*>(runLoader->GetLoader("ITSLoader")); | |
139 | if (!loader) { | |
140 | Error("Reconstruct", "ITS loader not found"); | |
141 | return; | |
142 | } | |
143 | ||
144 | AliITSDetTypeRec* rec = new AliITSDetTypeRec(loader); | |
145 | rec->SetDefaults(); | |
146 | rec->SetDefaultClusterFindersV2(kTRUE); | |
147 | ||
148 | loader->LoadRecPoints("recreate"); | |
149 | ||
150 | Int_t iEvent = 0; | |
151 | ||
152 | while(rawReader->NextEvent()) { | |
153 | runLoader->GetEvent(iEvent++); | |
154 | if(loader->TreeR()==0x0) loader->MakeTree("R"); | |
155 | rec->DigitsToRecPoints(rawReader); | |
156 | } | |
157 | ||
158 | loader->UnloadRecPoints(); | |
159 | } | |
160 | ||
161 | //_____________________________________________________________________________ | |
162 | AliTracker* AliITSReconstructor::CreateTracker(AliRunLoader* runLoader)const | |
163 | { | |
164 | // create a ITS tracker | |
165 | ||
166 | ||
167 | TString selectedTracker = GetOption(); | |
168 | AliTracker* tracker; | |
169 | if (selectedTracker.Contains("MI")) { | |
170 | tracker = new AliITStrackerMI(0); | |
171 | } | |
172 | else { | |
173 | tracker = new AliITStrackerSA(0); // inherits from AliITStrackerMI | |
174 | AliITStrackerSA *sat=(AliITStrackerSA*)tracker; | |
175 | if(selectedTracker.Contains("onlyITS"))sat->SetSAFlag(kTRUE); | |
176 | if(sat->GetSAFlag())AliDebug(1,"Tracking Performed in ITS only\n"); | |
177 | } | |
178 | ||
179 | TString selectedPIDmethod = GetOption(); | |
180 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
181 | if (!loader) { | |
182 | Error("CreateTracker", "ITS loader not found"); | |
183 | } | |
184 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
185 | loader->AdoptITSpid(new AliITSpidESD2((AliITStrackerMI*)tracker,loader)); | |
186 | } | |
187 | else{ | |
188 | Double_t parITS[] = {34., 0.15, 10.}; | |
189 | loader->AdoptITSpid(new AliITSpidESD1(parITS)); | |
190 | } | |
191 | return tracker; | |
192 | ||
193 | } | |
194 | ||
195 | //_____________________________________________________________________________ | |
196 | AliVertexer* AliITSReconstructor::CreateVertexer(AliRunLoader* /*runLoader*/) const | |
197 | { | |
198 | // create a ITS vertexer | |
199 | ||
200 | TString selectedVertexer = GetOption(); | |
201 | if(selectedVertexer.Contains("ions") || selectedVertexer.Contains("IONS")){ | |
202 | Info("CreateVertexer","a AliITSVertexerIons object has been selected\n"); | |
203 | return new AliITSVertexerIons("null"); | |
204 | } | |
205 | if(selectedVertexer.Contains("smear") || selectedVertexer.Contains("SMEAR")){ | |
206 | Double_t smear[3]={0.005,0.005,0.01}; | |
207 | Info("CreateVertexer","a AliITSVertexerFast object has been selected\n"); | |
208 | return new AliITSVertexerFast(smear); | |
209 | } | |
210 | if(selectedVertexer.Contains("ppz") || selectedVertexer.Contains("PPZ")){ | |
211 | Info("CreateVertexer","a AliITSVertexerPPZ object has been selected\n"); | |
212 | return new AliITSVertexerPPZ("null"); | |
213 | } | |
214 | // by default an AliITSVertexerZ object is instatiated | |
215 | Info("CreateVertexer","a AliITSVertexerZ object has been selected\n"); | |
216 | return new AliITSVertexerZ("null"); | |
217 | } | |
218 | ||
219 | //_____________________________________________________________________________ | |
220 | void AliITSReconstructor::FillESD(AliRunLoader* runLoader, | |
221 | AliESD* esd) const | |
222 | { | |
223 | // make PID, find V0s and cascade | |
224 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
225 | AliITSpidESD *pidESD = 0; | |
226 | TString selectedPIDmethod = GetOption(); | |
227 | if(selectedPIDmethod.Contains("LandauFitPID")){ | |
228 | Info("FillESD","ITS LandauFitPID option has been selected\n"); | |
229 | pidESD=loader->GetITSpid(); | |
230 | } | |
231 | else{ | |
232 | Info("FillESD","ITS default PID\n"); | |
233 | pidESD=loader->GetITSpid(); | |
234 | } | |
235 | if(pidESD!=0){ | |
236 | pidESD->MakePID(esd); | |
237 | } | |
238 | else { | |
239 | Error("FillESD","!! cannot do the PID !!\n"); | |
240 | } | |
241 | } | |
242 | ||
243 | ||
244 | //_____________________________________________________________________________ | |
245 | AliITSgeom* AliITSReconstructor::GetITSgeom(AliRunLoader* runLoader) const | |
246 | { | |
247 | // get the ITS geometry | |
248 | ||
249 | if (!runLoader->GetAliRun()) runLoader->LoadgAlice(); | |
250 | if (!runLoader->GetAliRun()) { | |
251 | Error("GetITSgeom", "couldn't get AliRun object"); | |
252 | return NULL; | |
253 | } | |
254 | AliITSLoader *loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader"); | |
255 | AliITSgeom* geom = (AliITSgeom*)loader->GetITSgeom(); | |
256 | if(!geom){ | |
257 | Error("GetITSgeom","no ITS geometry available"); | |
258 | return NULL; | |
259 | } | |
260 | ||
261 | return geom; | |
262 | } |