Separating run-dependent mapping data from data, which are not
[u/mrichter/AliRoot.git] / MUON / MUONAlignment.C
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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"
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 70void 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