]>
Commit | Line | Data |
---|---|---|
af9df62e | 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 | ||
e54bf126 | 18 | /// \ingroup macros |
19 | /// \file MUONAlignment.C | |
20 | /// \brief Macro for MUON alignment using physics tracks. | |
21 | /// | |
22 | /// The macro uses the AliMUONAlignment class to calculate the alignment parameters. | |
23 | /// An array for the alignment parameters is created and can be filled with | |
24 | /// initial values that will be used as starting values by the alignment | |
25 | /// algorithm. | |
26 | /// | |
27 | /// By default the macro run over galice.root in the working directory. If a file list | |
28 | /// of galice.root is provided as third argument the macro will run over all files. | |
29 | /// The macro loop over the files, events and tracks. For each track | |
30 | /// AliMUONAlignment::ProcessTrack(AliMUONTrack * track) and then | |
31 | /// AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t | |
32 | /// lSingleFit) are called. After all tracks have been procesed and fitted | |
33 | /// AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls) | |
34 | /// is called. The array parameters contains the obatained misalignement parameters. | |
35 | /// A realigned geometry is generated in a local CDB. | |
36 | /// | |
37 | /// \author: B. Becker and J. Castillo | |
af9df62e | 38 | |
2688ea9b | 39 | #if !defined(__CINT__) || defined(__MAKECINT__) |
40 | ||
41 | #include "AliMUONAlignment.h" | |
42 | #include "AliMUONTrack.h" | |
43 | #include "AliMUONTrackExtrap.h" | |
44 | #include "AliMUONTrackParam.h" | |
45 | #include "AliMUONGeometryTransformer.h" | |
103e6575 | 46 | #include "AliMUONESDInterface.h" |
47 | ||
61fed964 | 48 | #include "AliESDEvent.h" |
49 | #include "AliESDMuonTrack.h" | |
2688ea9b | 50 | #include "AliMagFMaps.h" |
51 | #include "AliTracker.h" | |
52 | #include "AliCDBManager.h" | |
53 | #include "AliCDBMetaData.h" | |
54 | #include "AliCDBId.h" | |
a02fe82d | 55 | #include "AliGeomManager.h" |
2688ea9b | 56 | |
57 | #include <TString.h> | |
2688ea9b | 58 | #include <TError.h> |
59 | #include <TH1.h> | |
60 | #include <TGraphErrors.h> | |
61 | #include <TFile.h> | |
61fed964 | 62 | #include <TTree.h> |
2688ea9b | 63 | #include <TClonesArray.h> |
64 | #include <Riostream.h> | |
65 | ||
66 | #include <fstream> | |
67 | ||
68 | #endif | |
69 | ||
61fed964 | 70 | void MUONAlignment(Int_t nEvents = 100000, char* geoFilename = "geometry.root", TString esdFileName = "AliESDs.root", TString fileList = "") |
af9df62e | 71 | { |
72 | ||
59830a87 | 73 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
a02fe82d | 74 | if ( ! AliGeomManager::GetGeometry() ) { |
75 | AliGeomManager::LoadGeometry(geoFilename); | |
76 | if (! AliGeomManager::GetGeometry() ) { | |
77 | Error("MUONAlignment", "getting geometry from file %s failed", geoFilename); | |
59830a87 | 78 | return; |
79 | } | |
80 | } | |
81 | ||
82 | // set mag field | |
83 | // waiting for mag field in CDB | |
84 | printf("Loading field map...\n"); | |
85 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); | |
86 | AliTracker::SetFieldMap(field, kFALSE); | |
87 | // set the magnetic field for track extrapolations | |
88 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
89 | ||
af9df62e | 90 | Double_t parameters[3*156]; |
91 | Double_t errors[3*156]; | |
92 | Double_t pulls[3*156]; | |
93 | for(Int_t k=0;k<3*156;k++) { | |
94 | parameters[k]=0.; | |
95 | errors[k]=0.; | |
96 | pulls[k]=0.; | |
97 | } | |
98 | ||
99 | Double_t trackParams[8] = {0.,0.,0.,0.,0.,0.,0.,0.}; | |
100 | ||
af9df62e | 101 | // Set initial values here, good guess may help convergence |
102 | // St 1 | |
2688ea9b | 103 | // Int_t iPar = 0; |
104 | // parameters[iPar++] = 0.010300 ; parameters[iPar++] = 0.010600 ; parameters[iPar++] = 0.000396 ; | |
af9df62e | 105 | |
106 | bool bLoop = kFALSE; | |
107 | ifstream sFileList; | |
108 | if (fileList.Contains(".list")) { | |
109 | cout << "Reading file list: " << fileList.Data() << endl; | |
110 | bLoop = kTRUE; | |
111 | ||
112 | TString fullListName("."); | |
113 | fullListName +="/"; | |
114 | fullListName +=fileList; | |
115 | sFileList.open(fileList.Data()); | |
116 | } | |
117 | ||
118 | TH1F *fInvBenMom = new TH1F("fInvBenMom","fInvBenMom",200,-0.1,0.1); | |
119 | TH1F *fBenMom = new TH1F("fBenMom","fBenMom",200,-40,40); | |
120 | ||
121 | AliMUONAlignment* alig = new AliMUONAlignment(); | |
122 | alig->InitGlobalParameters(parameters); | |
123 | ||
a02fe82d | 124 | AliMUONGeometryTransformer *transform = new AliMUONGeometryTransformer(); |
125 | transform->LoadGeometryData(); | |
af9df62e | 126 | alig->SetGeometryTransformer(transform); |
7f8c1308 | 127 | |
128 | // Do alignment with magnetic field off | |
129 | alig->SetBFieldOn(kFALSE); | |
587965bd | 130 | |
131 | // Set tracking station to use | |
132 | Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
133 | ||
134 | // Fix parameters or add constraints here | |
135 | for (Int_t iSt=0; iSt<5; iSt++) | |
136 | if (!bStOnOff[iSt]) alig->FixStation(iSt+1); | |
137 | ||
138 | // Left and right sides of the detector are independent, one can choose to align | |
139 | // only one side | |
140 | Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE}; | |
141 | alig->FixHalfSpectrometer(bStOnOff,bSpecLROnOff); | |
142 | ||
143 | // Set predifined global constrains: X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY | |
144 | Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
145 | Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE}; | |
146 | alig->AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff); | |
147 | ||
af9df62e | 148 | |
149 | char cFileName[100]; | |
7f8c1308 | 150 | |
af9df62e | 151 | Int_t lMaxFile = 1000; |
152 | Int_t iFile = 0; | |
587965bd | 153 | Int_t iEvent = 0; |
af9df62e | 154 | bool bKeepLoop = kTRUE; |
587965bd | 155 | Int_t iTrackTot=0; |
156 | Int_t iTrackOk=0; | |
157 | ||
af9df62e | 158 | while(bKeepLoop && iFile<lMaxFile){ |
159 | iFile++; | |
160 | if (bLoop) { | |
161 | sFileList.getline(cFileName,100); | |
162 | if (sFileList.eof()) bKeepLoop = kFALSE; | |
163 | } | |
164 | else { | |
61fed964 | 165 | sprintf(cFileName,esdFileName.Data()); |
af9df62e | 166 | bKeepLoop = kFALSE; |
167 | } | |
61fed964 | 168 | if (!strstr(cFileName,"AliESDs.root")) continue; |
af9df62e | 169 | cout << "Using file: " << cFileName << endl; |
61fed964 | 170 | |
171 | // load ESD event | |
172 | TFile* esdFile = TFile::Open(cFileName); // open the file | |
173 | if (!esdFile || !esdFile->IsOpen()) { | |
174 | cout << "opening ESD file " << cFileName << "failed" << endl; | |
175 | continue; | |
176 | } | |
177 | TTree* esdTree = (TTree*) esdFile->Get("esdTree"); // get the tree | |
178 | if (!esdTree) { | |
179 | cout << "no ESD tree found" << endl; | |
180 | esdFile->Close(); | |
181 | continue; | |
182 | } | |
183 | AliESDEvent* esdEvent = new AliESDEvent(); // link ESD event to the tree | |
184 | esdEvent->ReadFromTree(esdTree); | |
7f8c1308 | 185 | |
61fed964 | 186 | Int_t nevents = esdTree->GetEntries(); |
587965bd | 187 | cout << "... with " << nevents << endl; |
af9df62e | 188 | for(Int_t event = 0; event < nevents; event++) { |
587965bd | 189 | if (iEvent >= nEvents){ |
190 | bKeepLoop = kFALSE; | |
191 | break; | |
192 | } | |
193 | iEvent++; | |
194 | ||
61fed964 | 195 | if (esdTree->GetEvent(event) <= 0) { |
196 | cout << "fails to read ESD object for event " << event << endl; | |
197 | continue; | |
198 | } | |
7f8c1308 | 199 | |
61fed964 | 200 | Int_t nTracks = Int_t(esdEvent->GetNumberOfMuonTracks()); |
201 | if (!event%100) cout << " there are " << nTracks << " tracks in event " << event << endl; | |
202 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
203 | AliESDMuonTrack* esdTrack = esdEvent->GetMuonTrack(iTrack); | |
204 | if (!esdTrack->ClustersStored()) continue; | |
205 | Double_t invBenMom = esdTrack->GetInverseBendingMomentum(); | |
af9df62e | 206 | fInvBenMom->Fill(invBenMom); |
207 | fBenMom->Fill(1./invBenMom); | |
208 | if (TMath::Abs(invBenMom)<=1.04) { | |
103e6575 | 209 | AliMUONTrack track; |
210 | AliMUONESDInterface::ESDToMUON(*esdTrack, track); | |
61fed964 | 211 | alig->ProcessTrack(&track); |
af9df62e | 212 | alig->LocalFit(iTrackOk++,trackParams,0); |
213 | } | |
587965bd | 214 | iTrackTot++; |
af9df62e | 215 | } |
216 | } | |
61fed964 | 217 | delete esdEvent; |
218 | esdFile->Close(); | |
587965bd | 219 | cout << "Processed " << iTrackTot << " Tracks so far." << endl; |
af9df62e | 220 | } |
221 | alig->GlobalFit(parameters,errors,pulls); | |
222 | ||
223 | cout << "Done with GlobalFit " << endl; | |
224 | ||
225 | // Store results | |
226 | Double_t DEid[156] = {0}; | |
227 | Double_t MSDEx[156] = {0}; | |
228 | Double_t MSDEy[156] = {0}; | |
229 | Double_t MSDExt[156] = {0}; | |
230 | Double_t MSDEyt[156] = {0}; | |
231 | Double_t DEidErr[156] = {0}; | |
232 | Double_t MSDExErr[156] = {0}; | |
233 | Double_t MSDEyErr[156] = {0}; | |
234 | Double_t MSDExtErr[156] = {0}; | |
235 | Double_t MSDEytErr[156] = {0}; | |
236 | Int_t lNDetElem = 4*2+4*2+18*2+26*2+26*2; | |
237 | Int_t lNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26}; | |
2688ea9b | 238 | // Int_t lSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156}; |
af9df62e | 239 | Int_t idOffset = 0; // 400 |
240 | Int_t lSDetElemCh = 0; | |
241 | for(Int_t iDE=0; iDE<lNDetElem; iDE++){ | |
242 | DEidErr[iDE] = 0.; | |
243 | DEid[iDE] = idOffset+100; | |
244 | DEid[iDE] += iDE; | |
245 | lSDetElemCh = 0; | |
246 | for(Int_t iCh=0; iCh<9; iCh++){ | |
247 | lSDetElemCh += lNDetElemCh[iCh]; | |
248 | if (iDE>=lSDetElemCh) { | |
249 | DEid[iDE] += 100; | |
250 | DEid[iDE] -= lNDetElemCh[iCh]; | |
251 | } | |
252 | } | |
253 | MSDEx[iDE]=parameters[3*iDE+0]; | |
254 | MSDEy[iDE]=parameters[3*iDE+1]; | |
255 | MSDExt[iDE]=parameters[3*iDE+2]; | |
256 | MSDEyt[iDE]=parameters[3*iDE+2]; | |
257 | MSDExErr[iDE]=(Double_t)alig->GetParError(3*iDE+0); | |
258 | MSDEyErr[iDE]=(Double_t)alig->GetParError(3*iDE+1); | |
259 | MSDExtErr[iDE]=(Double_t)alig->GetParError(3*iDE+2); | |
260 | MSDEytErr[iDE]=(Double_t)alig->GetParError(3*iDE+2); | |
261 | } | |
262 | ||
263 | cout << "Let's create graphs ... " << endl; | |
264 | ||
265 | TGraphErrors *gMSDEx = new TGraphErrors(lNDetElem,DEid,MSDEx,DEidErr,MSDExErr); | |
266 | TGraphErrors *gMSDEy = new TGraphErrors(lNDetElem,DEid,MSDEy,DEidErr,MSDEyErr); | |
267 | TGraphErrors *gMSDExt = new TGraphErrors(lNDetElem,DEid,MSDExt,DEidErr,MSDExtErr); | |
268 | TGraphErrors *gMSDEyt = new TGraphErrors(lNDetElem,DEid,MSDEyt,DEidErr,MSDEytErr); | |
269 | ||
270 | cout << "... graphs created, open file ... " << endl; | |
271 | ||
272 | TFile *hFile = new TFile("measShifts.root","RECREATE"); | |
273 | ||
274 | cout << "... file opened ... " << endl; | |
275 | ||
276 | gMSDEx->Write("gMSDEx"); | |
277 | gMSDEy->Write("gMSDEy"); | |
278 | gMSDExt->Write("gMSDExt"); | |
279 | gMSDEyt->Write("gMSDEyt"); | |
280 | fInvBenMom->Write(); | |
281 | fBenMom->Write(); | |
282 | hFile->Close(); | |
283 | ||
284 | cout << "... and closed!" << endl; | |
285 | // Re Align | |
286 | AliMUONGeometryTransformer *newTransform = alig->ReAlign(transform,parameters,true); | |
287 | newTransform->WriteTransformations("transform2ReAlign.dat"); | |
288 | ||
289 | // Generate realigned data in local cdb | |
2688ea9b | 290 | const TClonesArray* array = newTransform->GetMisAlignmentData(); |
af9df62e | 291 | |
292 | // CDB manager | |
293 | AliCDBManager* cdbManager = AliCDBManager::Instance(); | |
294 | cdbManager->SetDefaultStorage("local://ReAlignCDB"); | |
295 | ||
296 | AliCDBMetaData* cdbData = new AliCDBMetaData(); | |
297 | cdbData->SetResponsible("Dimuon Offline project"); | |
298 | cdbData->SetComment("MUON alignment objects with residual misalignment"); | |
299 | AliCDBId id("MUON/Align/Data", 0, 0); | |
2688ea9b | 300 | cdbManager->Put(const_cast<TClonesArray*>(array), id, cdbData); |
af9df62e | 301 | |
61fed964 | 302 | } |
303 |