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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 | ||
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" | |
f7a1cc68 | 50 | #include "AliMagF.h" |
2688ea9b | 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 | |
f7a1cc68 | 84 | if (!TGeoGlobalMagField::Instance()->GetField()) { |
85 | printf("Loading field map...\n"); | |
723b0b5b | 86 | // AliMagF* field = new AliMagF("Maps","Maps",2,1.,1., 10.,AliMagF::k5kG); |
87 | AliMagF* field = new AliMagF("Maps","Maps",2,0.,0., 10.,AliMagF::k5kG); | |
f7a1cc68 | 88 | TGeoGlobalMagField::Instance()->SetField(field); |
89 | } | |
59830a87 | 90 | // set the magnetic field for track extrapolations |
f7a1cc68 | 91 | AliMUONTrackExtrap::SetField(); |
59830a87 | 92 | |
723b0b5b | 93 | Double_t parameters[4*156]; |
94 | Double_t errors[4*156]; | |
95 | Double_t pulls[4*156]; | |
96 | for(Int_t k=0;k<4*156;k++) { | |
af9df62e | 97 | parameters[k]=0.; |
98 | errors[k]=0.; | |
99 | pulls[k]=0.; | |
100 | } | |
101 | ||
102 | Double_t trackParams[8] = {0.,0.,0.,0.,0.,0.,0.,0.}; | |
103 | ||
af9df62e | 104 | // Set initial values here, good guess may help convergence |
105 | // St 1 | |
2688ea9b | 106 | // Int_t iPar = 0; |
107 | // parameters[iPar++] = 0.010300 ; parameters[iPar++] = 0.010600 ; parameters[iPar++] = 0.000396 ; | |
af9df62e | 108 | |
109 | bool bLoop = kFALSE; | |
110 | ifstream sFileList; | |
111 | if (fileList.Contains(".list")) { | |
112 | cout << "Reading file list: " << fileList.Data() << endl; | |
113 | bLoop = kTRUE; | |
114 | ||
115 | TString fullListName("."); | |
116 | fullListName +="/"; | |
117 | fullListName +=fileList; | |
118 | sFileList.open(fileList.Data()); | |
119 | } | |
120 | ||
121 | TH1F *fInvBenMom = new TH1F("fInvBenMom","fInvBenMom",200,-0.1,0.1); | |
122 | TH1F *fBenMom = new TH1F("fBenMom","fBenMom",200,-40,40); | |
123 | ||
124 | AliMUONAlignment* alig = new AliMUONAlignment(); | |
125 | alig->InitGlobalParameters(parameters); | |
126 | ||
a02fe82d | 127 | AliMUONGeometryTransformer *transform = new AliMUONGeometryTransformer(); |
128 | transform->LoadGeometryData(); | |
af9df62e | 129 | alig->SetGeometryTransformer(transform); |
7f8c1308 | 130 | |
131 | // Do alignment with magnetic field off | |
132 | alig->SetBFieldOn(kFALSE); | |
587965bd | 133 | |
134 | // Set tracking station to use | |
135 | Bool_t bStOnOff[5] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
d8ad38e5 | 136 | Bool_t bChOnOff[10] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; |
587965bd | 137 | |
f3e4edfb | 138 | // Set degrees of freedom to align (see AliMUONAlignment) |
139 | alig->AllowVariations(bChOnOff); | |
140 | ||
587965bd | 141 | // Fix parameters or add constraints here |
d8ad38e5 | 142 | // for (Int_t iSt=0; iSt<5; iSt++) |
143 | // if (!bStOnOff[iSt]) alig->FixStation(iSt+1); | |
144 | for (Int_t iCh=0; iCh<10; iCh++) | |
145 | if (!bChOnOff[iCh]) alig->FixChamber(iCh+1); | |
587965bd | 146 | |
147 | // Left and right sides of the detector are independent, one can choose to align | |
148 | // only one side | |
149 | Bool_t bSpecLROnOff[2] = {kTRUE,kTRUE}; | |
d8ad38e5 | 150 | alig->FixHalfSpectrometer(bChOnOff,bSpecLROnOff); |
151 | ||
152 | alig->SetChOnOff(bChOnOff); | |
153 | alig->SetSpecLROnOff(bChOnOff); | |
587965bd | 154 | |
723b0b5b | 155 | // Here we can fix some detection elements |
156 | alig->FixDetElem(908); | |
157 | alig->FixDetElem(1020); | |
158 | ||
587965bd | 159 | // Set predifined global constrains: X, Y, P, XvsZ, YvsZ, PvsZ, XvsY, YvsY, PvsY |
160 | Bool_t bVarXYT[9] = {kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE,kTRUE}; | |
161 | Bool_t bDetTLBR[4] = {kFALSE,kTRUE,kFALSE,kTRUE}; | |
723b0b5b | 162 | // alig->AddConstraints(bChOnOff,bVarXYT,bDetTLBR,bSpecLROnOff); |
587965bd | 163 | |
af9df62e | 164 | |
165 | char cFileName[100]; | |
7f8c1308 | 166 | |
af9df62e | 167 | Int_t lMaxFile = 1000; |
168 | Int_t iFile = 0; | |
587965bd | 169 | Int_t iEvent = 0; |
af9df62e | 170 | bool bKeepLoop = kTRUE; |
587965bd | 171 | Int_t iTrackTot=0; |
172 | Int_t iTrackOk=0; | |
173 | ||
af9df62e | 174 | while(bKeepLoop && iFile<lMaxFile){ |
175 | iFile++; | |
176 | if (bLoop) { | |
177 | sFileList.getline(cFileName,100); | |
178 | if (sFileList.eof()) bKeepLoop = kFALSE; | |
179 | } | |
180 | else { | |
61fed964 | 181 | sprintf(cFileName,esdFileName.Data()); |
af9df62e | 182 | bKeepLoop = kFALSE; |
183 | } | |
723b0b5b | 184 | if (!strstr(cFileName,"AliESDs")) continue; |
af9df62e | 185 | cout << "Using file: " << cFileName << endl; |
61fed964 | 186 | |
187 | // load ESD event | |
188 | TFile* esdFile = TFile::Open(cFileName); // open the file | |
189 | if (!esdFile || !esdFile->IsOpen()) { | |
190 | cout << "opening ESD file " << cFileName << "failed" << endl; | |
191 | continue; | |
192 | } | |
193 | TTree* esdTree = (TTree*) esdFile->Get("esdTree"); // get the tree | |
194 | if (!esdTree) { | |
195 | cout << "no ESD tree found" << endl; | |
196 | esdFile->Close(); | |
197 | continue; | |
198 | } | |
199 | AliESDEvent* esdEvent = new AliESDEvent(); // link ESD event to the tree | |
200 | esdEvent->ReadFromTree(esdTree); | |
7f8c1308 | 201 | |
61fed964 | 202 | Int_t nevents = esdTree->GetEntries(); |
587965bd | 203 | cout << "... with " << nevents << endl; |
af9df62e | 204 | for(Int_t event = 0; event < nevents; event++) { |
587965bd | 205 | if (iEvent >= nEvents){ |
206 | bKeepLoop = kFALSE; | |
207 | break; | |
208 | } | |
209 | iEvent++; | |
210 | ||
61fed964 | 211 | if (esdTree->GetEvent(event) <= 0) { |
212 | cout << "fails to read ESD object for event " << event << endl; | |
213 | continue; | |
214 | } | |
7f8c1308 | 215 | |
61fed964 | 216 | Int_t nTracks = Int_t(esdEvent->GetNumberOfMuonTracks()); |
217 | if (!event%100) cout << " there are " << nTracks << " tracks in event " << event << endl; | |
218 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
219 | AliESDMuonTrack* esdTrack = esdEvent->GetMuonTrack(iTrack); | |
220 | if (!esdTrack->ClustersStored()) continue; | |
221 | Double_t invBenMom = esdTrack->GetInverseBendingMomentum(); | |
af9df62e | 222 | fInvBenMom->Fill(invBenMom); |
223 | fBenMom->Fill(1./invBenMom); | |
224 | if (TMath::Abs(invBenMom)<=1.04) { | |
103e6575 | 225 | AliMUONTrack track; |
ad3c6eda | 226 | AliMUONESDInterface::ESDToMUON(*esdTrack, track); |
61fed964 | 227 | alig->ProcessTrack(&track); |
af9df62e | 228 | alig->LocalFit(iTrackOk++,trackParams,0); |
229 | } | |
587965bd | 230 | iTrackTot++; |
af9df62e | 231 | } |
232 | } | |
61fed964 | 233 | delete esdEvent; |
234 | esdFile->Close(); | |
587965bd | 235 | cout << "Processed " << iTrackTot << " Tracks so far." << endl; |
af9df62e | 236 | } |
237 | alig->GlobalFit(parameters,errors,pulls); | |
238 | ||
239 | cout << "Done with GlobalFit " << endl; | |
240 | ||
241 | // Store results | |
242 | Double_t DEid[156] = {0}; | |
243 | Double_t MSDEx[156] = {0}; | |
244 | Double_t MSDEy[156] = {0}; | |
723b0b5b | 245 | Double_t MSDEz[156] = {0}; |
246 | Double_t MSDEp[156] = {0}; | |
af9df62e | 247 | Double_t DEidErr[156] = {0}; |
248 | Double_t MSDExErr[156] = {0}; | |
249 | Double_t MSDEyErr[156] = {0}; | |
723b0b5b | 250 | Double_t MSDEzErr[156] = {0}; |
251 | Double_t MSDEpErr[156] = {0}; | |
af9df62e | 252 | Int_t lNDetElem = 4*2+4*2+18*2+26*2+26*2; |
253 | Int_t lNDetElemCh[10] = {4,4,4,4,18,18,26,26,26,26}; | |
2688ea9b | 254 | // Int_t lSNDetElemCh[10] = {4,8,12,16,34,52,78,104,130,156}; |
af9df62e | 255 | Int_t idOffset = 0; // 400 |
256 | Int_t lSDetElemCh = 0; | |
257 | for(Int_t iDE=0; iDE<lNDetElem; iDE++){ | |
258 | DEidErr[iDE] = 0.; | |
259 | DEid[iDE] = idOffset+100; | |
260 | DEid[iDE] += iDE; | |
261 | lSDetElemCh = 0; | |
262 | for(Int_t iCh=0; iCh<9; iCh++){ | |
263 | lSDetElemCh += lNDetElemCh[iCh]; | |
264 | if (iDE>=lSDetElemCh) { | |
265 | DEid[iDE] += 100; | |
266 | DEid[iDE] -= lNDetElemCh[iCh]; | |
267 | } | |
268 | } | |
723b0b5b | 269 | MSDEx[iDE]=parameters[4*iDE+0]; |
270 | MSDEy[iDE]=parameters[4*iDE+1]; | |
271 | MSDEz[iDE]=parameters[4*iDE+3]; | |
272 | MSDEp[iDE]=parameters[4*iDE+2]; | |
273 | MSDExErr[iDE]=(Double_t)alig->GetParError(4*iDE+0); | |
274 | MSDEyErr[iDE]=(Double_t)alig->GetParError(4*iDE+1); | |
275 | MSDEzErr[iDE]=(Double_t)alig->GetParError(4*iDE+3); | |
276 | MSDEpErr[iDE]=(Double_t)alig->GetParError(4*iDE+2); | |
af9df62e | 277 | } |
278 | ||
279 | cout << "Let's create graphs ... " << endl; | |
280 | ||
281 | TGraphErrors *gMSDEx = new TGraphErrors(lNDetElem,DEid,MSDEx,DEidErr,MSDExErr); | |
282 | TGraphErrors *gMSDEy = new TGraphErrors(lNDetElem,DEid,MSDEy,DEidErr,MSDEyErr); | |
723b0b5b | 283 | TGraphErrors *gMSDEz = new TGraphErrors(lNDetElem,DEid,MSDEz,DEidErr,MSDEzErr); |
284 | TGraphErrors *gMSDEp = new TGraphErrors(lNDetElem,DEid,MSDEp,DEidErr,MSDEpErr); | |
af9df62e | 285 | |
286 | cout << "... graphs created, open file ... " << endl; | |
287 | ||
288 | TFile *hFile = new TFile("measShifts.root","RECREATE"); | |
289 | ||
290 | cout << "... file opened ... " << endl; | |
291 | ||
292 | gMSDEx->Write("gMSDEx"); | |
293 | gMSDEy->Write("gMSDEy"); | |
723b0b5b | 294 | gMSDEz->Write("gMSDEz"); |
295 | gMSDEp->Write("gMSDEp"); | |
af9df62e | 296 | fInvBenMom->Write(); |
297 | fBenMom->Write(); | |
298 | hFile->Close(); | |
299 | ||
300 | cout << "... and closed!" << endl; | |
301 | // Re Align | |
302 | AliMUONGeometryTransformer *newTransform = alig->ReAlign(transform,parameters,true); | |
303 | newTransform->WriteTransformations("transform2ReAlign.dat"); | |
304 | ||
305 | // Generate realigned data in local cdb | |
2688ea9b | 306 | const TClonesArray* array = newTransform->GetMisAlignmentData(); |
4818a9b7 | 307 | |
308 | // 100 mum residual resolution for chamber misalignments? | |
309 | alig->SetAlignmentResolution(array,-1,0.01,0.01,0.004,0.003); | |
af9df62e | 310 | |
311 | // CDB manager | |
312 | AliCDBManager* cdbManager = AliCDBManager::Instance(); | |
313 | cdbManager->SetDefaultStorage("local://ReAlignCDB"); | |
314 | ||
315 | AliCDBMetaData* cdbData = new AliCDBMetaData(); | |
316 | cdbData->SetResponsible("Dimuon Offline project"); | |
317 | cdbData->SetComment("MUON alignment objects with residual misalignment"); | |
d8ad38e5 | 318 | AliCDBId id("MUON/Align/Data", 0, AliCDBRunRange::Infinity()); |
2688ea9b | 319 | cdbManager->Put(const_cast<TClonesArray*>(array), id, cdbData); |
af9df62e | 320 | |
61fed964 | 321 | } |
322 |