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