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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 | ||
18 | // --- | |
19 | // Macro for MUON alignment using physics tracks. The macro uses AliMUONAlignment | |
20 | // class to calculate the alignment parameters. | |
21 | // An array for the alignment parameters is created and can be filled with | |
22 | // initial values that will be used as starting values by the alignment | |
23 | // algorithm. | |
24 | // Ny default the macro run over galice.root in the working directory. If a file list | |
25 | // of galice.root is provided as third argument the macro will run over all files. | |
26 | // The macro loop over the files, events and tracks. For each track | |
27 | // AliMUONAlignment::ProcessTrack(AliMUONTrack * track) and then | |
28 | // AliMUONAlignment::LocalFit(Int_t iTrack, Double_t *lTrackParam, Int_t | |
29 | // lSingleFit) are called. After all tracks have been procesed and fitted | |
30 | // AliMUONAlignment::GlobalFit(Double_t *parameters,Double_t *errors,Double_t *pulls) | |
31 | // is called. The array parameters contains the obatained misalignement parameters. | |
32 | // A realigned geometry is generated in a local CDB. | |
33 | // | |
34 | // Authors: B. Becker and J. Castillo | |
35 | // --- | |
36 | ||
2688ea9b | 37 | #if !defined(__CINT__) || defined(__MAKECINT__) |
38 | ||
39 | #include "AliMUONAlignment.h" | |
40 | #include "AliMUONTrack.h" | |
41 | #include "AliMUONTrackExtrap.h" | |
42 | #include "AliMUONTrackParam.h" | |
43 | #include "AliMUONGeometryTransformer.h" | |
44 | #include "AliMUONDataInterface.h" | |
7f8c1308 | 45 | #include "AliMUONVTrackStore.h" |
2688ea9b | 46 | |
47 | #include "AliMagFMaps.h" | |
48 | #include "AliTracker.h" | |
49 | #include "AliCDBManager.h" | |
50 | #include "AliCDBMetaData.h" | |
51 | #include "AliCDBId.h" | |
a02fe82d | 52 | #include "AliGeomManager.h" |
2688ea9b | 53 | |
54 | #include <TString.h> | |
2688ea9b | 55 | #include <TError.h> |
56 | #include <TH1.h> | |
57 | #include <TGraphErrors.h> | |
58 | #include <TFile.h> | |
59 | #include <TClonesArray.h> | |
60 | #include <Riostream.h> | |
61 | ||
62 | #include <fstream> | |
63 | ||
64 | #endif | |
65 | ||
59830a87 | 66 | void MUONAlignment(Int_t nEvents = 100000, char* geoFilename = "geometry.root", TString fileName = "galice.root", TString fileList = "") |
af9df62e | 67 | { |
68 | ||
59830a87 | 69 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
a02fe82d | 70 | if ( ! AliGeomManager::GetGeometry() ) { |
71 | AliGeomManager::LoadGeometry(geoFilename); | |
72 | if (! AliGeomManager::GetGeometry() ) { | |
73 | Error("MUONAlignment", "getting geometry from file %s failed", geoFilename); | |
59830a87 | 74 | return; |
75 | } | |
76 | } | |
77 | ||
78 | // set mag field | |
79 | // waiting for mag field in CDB | |
80 | printf("Loading field map...\n"); | |
81 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); | |
82 | AliTracker::SetFieldMap(field, kFALSE); | |
83 | // set the magnetic field for track extrapolations | |
84 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
85 | ||
af9df62e | 86 | Double_t parameters[3*156]; |
87 | Double_t errors[3*156]; | |
88 | Double_t pulls[3*156]; | |
89 | for(Int_t k=0;k<3*156;k++) { | |
90 | parameters[k]=0.; | |
91 | errors[k]=0.; | |
92 | pulls[k]=0.; | |
93 | } | |
94 | ||
95 | Double_t trackParams[8] = {0.,0.,0.,0.,0.,0.,0.,0.}; | |
96 | ||
af9df62e | 97 | // Set initial values here, good guess may help convergence |
98 | // St 1 | |
2688ea9b | 99 | // Int_t iPar = 0; |
100 | // parameters[iPar++] = 0.010300 ; parameters[iPar++] = 0.010600 ; parameters[iPar++] = 0.000396 ; | |
af9df62e | 101 | |
102 | bool bLoop = kFALSE; | |
103 | ifstream sFileList; | |
104 | if (fileList.Contains(".list")) { | |
105 | cout << "Reading file list: " << fileList.Data() << endl; | |
106 | bLoop = kTRUE; | |
107 | ||
108 | TString fullListName("."); | |
109 | fullListName +="/"; | |
110 | fullListName +=fileList; | |
111 | sFileList.open(fileList.Data()); | |
112 | } | |
113 | ||
114 | TH1F *fInvBenMom = new TH1F("fInvBenMom","fInvBenMom",200,-0.1,0.1); | |
115 | TH1F *fBenMom = new TH1F("fBenMom","fBenMom",200,-40,40); | |
116 | ||
117 | AliMUONAlignment* alig = new AliMUONAlignment(); | |
118 | alig->InitGlobalParameters(parameters); | |
119 | ||
a02fe82d | 120 | AliMUONGeometryTransformer *transform = new AliMUONGeometryTransformer(); |
121 | transform->LoadGeometryData(); | |
af9df62e | 122 | alig->SetGeometryTransformer(transform); |
7f8c1308 | 123 | |
124 | // Do alignment with magnetic field off | |
125 | alig->SetBFieldOn(kFALSE); | |
587965bd | 126 | |
127 | // Set tracking station to use | |
128 | Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
129 | ||
130 | // Fix parameters or add constraints here | |
131 | for (Int_t iSt=0; iSt<5; iSt++) | |
132 | if (!bStOnOff[iSt]) alig->FixStation(iSt+1); | |
133 | ||
134 | // Left and right sides of the detector are independent, one can choose to align | |
135 | // only one side | |
136 | Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE}; | |
137 | alig->FixHalfSpectrometer(bStOnOff,bSpecLROnOff); | |
138 | ||
139 | // Set predifined global constrains: X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY | |
140 | Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
141 | Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE}; | |
142 | alig->AddConstraints(bStOnOff,bVarXYT,bDetTLBR,bSpecLROnOff); | |
143 | ||
af9df62e | 144 | |
145 | char cFileName[100]; | |
7f8c1308 | 146 | AliMUONDataInterface *amdi =0x0; |
147 | AliMUONVTrackStore *trackStore =0x0; | |
148 | AliMUONTrack* track =0x0; | |
149 | ||
af9df62e | 150 | Int_t lMaxFile = 1000; |
151 | Int_t iFile = 0; | |
587965bd | 152 | Int_t iEvent = 0; |
af9df62e | 153 | bool bKeepLoop = kTRUE; |
587965bd | 154 | Int_t iTrackTot=0; |
155 | Int_t iTrackOk=0; | |
156 | ||
af9df62e | 157 | while(bKeepLoop && iFile<lMaxFile){ |
158 | iFile++; | |
159 | if (bLoop) { | |
160 | sFileList.getline(cFileName,100); | |
161 | if (sFileList.eof()) bKeepLoop = kFALSE; | |
162 | } | |
163 | else { | |
164 | sprintf(cFileName,fileName.Data()); | |
165 | bKeepLoop = kFALSE; | |
166 | } | |
167 | if (!strstr(cFileName,"galice.root")) continue; | |
168 | cout << "Using file: " << cFileName << endl; | |
7f8c1308 | 169 | |
170 | if (!amdi) amdi = new AliMUONDataInterface(cFileName); | |
171 | else amdi->Open(cFileName); | |
172 | ||
173 | Int_t nevents = amdi->NumberOfEvents(); | |
587965bd | 174 | cout << "... with " << nevents << endl; |
af9df62e | 175 | for(Int_t event = 0; event < nevents; event++) { |
587965bd | 176 | if (iEvent >= nEvents){ |
177 | bKeepLoop = kFALSE; | |
178 | break; | |
179 | } | |
180 | iEvent++; | |
181 | ||
7f8c1308 | 182 | trackStore = amdi->TrackStore(event); |
183 | ||
184 | Int_t ntracks = trackStore->GetSize(); | |
587965bd | 185 | if (!event%100) |
186 | cout << " there are " << ntracks << " tracks in event " << event << endl; | |
7f8c1308 | 187 | TIter next(trackStore->CreateIterator()); |
188 | while ( ( track = static_cast<AliMUONTrack*>(next()) ) ) { | |
8cde4af5 | 189 | AliMUONTrackParam trackParam(*((AliMUONTrackParam*)(track->GetTrackParamAtHit()->First()))); |
190 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam,0.,0.,0.); | |
191 | Double_t invBenMom = trackParam.GetInverseBendingMomentum(); | |
af9df62e | 192 | fInvBenMom->Fill(invBenMom); |
193 | fBenMom->Fill(1./invBenMom); | |
194 | if (TMath::Abs(invBenMom)<=1.04) { | |
af9df62e | 195 | alig->ProcessTrack(track); |
af9df62e | 196 | alig->LocalFit(iTrackOk++,trackParams,0); |
197 | } | |
587965bd | 198 | iTrackTot++; |
af9df62e | 199 | } |
200 | } | |
587965bd | 201 | cout << "Processed " << iTrackTot << " Tracks so far." << endl; |
af9df62e | 202 | } |
203 | alig->GlobalFit(parameters,errors,pulls); | |
204 | ||
205 | cout << "Done with GlobalFit " << endl; | |
206 | ||
207 | // Store results | |
208 | Double_t DEid[156] = {0}; | |
209 | Double_t MSDEx[156] = {0}; | |
210 | Double_t MSDEy[156] = {0}; | |
211 | Double_t MSDExt[156] = {0}; | |
212 | Double_t MSDEyt[156] = {0}; | |
213 | Double_t DEidErr[156] = {0}; | |
214 | Double_t MSDExErr[156] = {0}; | |
215 | Double_t MSDEyErr[156] = {0}; | |
216 | Double_t MSDExtErr[156] = {0}; | |
217 | Double_t MSDEytErr[156] = {0}; | |
218 | Int_t lNDetElem = 4*2+4*2+18*2+26*2+26*2; | |
219 | Int_t lNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26}; | |
2688ea9b | 220 | // Int_t lSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156}; |
af9df62e | 221 | Int_t idOffset = 0; // 400 |
222 | Int_t lSDetElemCh = 0; | |
223 | for(Int_t iDE=0; iDE<lNDetElem; iDE++){ | |
224 | DEidErr[iDE] = 0.; | |
225 | DEid[iDE] = idOffset+100; | |
226 | DEid[iDE] += iDE; | |
227 | lSDetElemCh = 0; | |
228 | for(Int_t iCh=0; iCh<9; iCh++){ | |
229 | lSDetElemCh += lNDetElemCh[iCh]; | |
230 | if (iDE>=lSDetElemCh) { | |
231 | DEid[iDE] += 100; | |
232 | DEid[iDE] -= lNDetElemCh[iCh]; | |
233 | } | |
234 | } | |
235 | MSDEx[iDE]=parameters[3*iDE+0]; | |
236 | MSDEy[iDE]=parameters[3*iDE+1]; | |
237 | MSDExt[iDE]=parameters[3*iDE+2]; | |
238 | MSDEyt[iDE]=parameters[3*iDE+2]; | |
239 | MSDExErr[iDE]=(Double_t)alig->GetParError(3*iDE+0); | |
240 | MSDEyErr[iDE]=(Double_t)alig->GetParError(3*iDE+1); | |
241 | MSDExtErr[iDE]=(Double_t)alig->GetParError(3*iDE+2); | |
242 | MSDEytErr[iDE]=(Double_t)alig->GetParError(3*iDE+2); | |
243 | } | |
244 | ||
245 | cout << "Let's create graphs ... " << endl; | |
246 | ||
247 | TGraphErrors *gMSDEx = new TGraphErrors(lNDetElem,DEid,MSDEx,DEidErr,MSDExErr); | |
248 | TGraphErrors *gMSDEy = new TGraphErrors(lNDetElem,DEid,MSDEy,DEidErr,MSDEyErr); | |
249 | TGraphErrors *gMSDExt = new TGraphErrors(lNDetElem,DEid,MSDExt,DEidErr,MSDExtErr); | |
250 | TGraphErrors *gMSDEyt = new TGraphErrors(lNDetElem,DEid,MSDEyt,DEidErr,MSDEytErr); | |
251 | ||
252 | cout << "... graphs created, open file ... " << endl; | |
253 | ||
254 | TFile *hFile = new TFile("measShifts.root","RECREATE"); | |
255 | ||
256 | cout << "... file opened ... " << endl; | |
257 | ||
258 | gMSDEx->Write("gMSDEx"); | |
259 | gMSDEy->Write("gMSDEy"); | |
260 | gMSDExt->Write("gMSDExt"); | |
261 | gMSDEyt->Write("gMSDEyt"); | |
262 | fInvBenMom->Write(); | |
263 | fBenMom->Write(); | |
264 | hFile->Close(); | |
265 | ||
266 | cout << "... and closed!" << endl; | |
267 | // Re Align | |
268 | AliMUONGeometryTransformer *newTransform = alig->ReAlign(transform,parameters,true); | |
269 | newTransform->WriteTransformations("transform2ReAlign.dat"); | |
270 | ||
271 | // Generate realigned data in local cdb | |
2688ea9b | 272 | const TClonesArray* array = newTransform->GetMisAlignmentData(); |
af9df62e | 273 | |
274 | // CDB manager | |
275 | AliCDBManager* cdbManager = AliCDBManager::Instance(); | |
276 | cdbManager->SetDefaultStorage("local://ReAlignCDB"); | |
277 | ||
278 | AliCDBMetaData* cdbData = new AliCDBMetaData(); | |
279 | cdbData->SetResponsible("Dimuon Offline project"); | |
280 | cdbData->SetComment("MUON alignment objects with residual misalignment"); | |
281 | AliCDBId id("MUON/Align/Data", 0, 0); | |
2688ea9b | 282 | cdbManager->Put(const_cast<TClonesArray*>(array), id, cdbData); |
af9df62e | 283 | |
284 | } |