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2574314d | 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 | /* | |
17 | $Log$ | |
dd89d4d2 | 18 | Revision 1.1 2007/10/01 14:12:45 kowal2 |
19 | Class creating the aligmnent object fro the surveyor measurements. | |
20 | ||
2574314d | 21 | */ |
22 | ||
23 | // | |
24 | // Creates the TPC align object | |
25 | // | |
26 | ||
27 | #include "AliTPCAlign.h" | |
28 | // | |
29 | #include "TROOT.h" | |
30 | #include "Riostream.h" | |
31 | #include "TFile.h" | |
32 | #include "TMath.h" | |
33 | #include "TSystem.h" | |
34 | #include "AliSurveyObj.h" | |
35 | #include "AliAlignObjParams.h" | |
36 | #include "AliCDBStorage.h" | |
37 | #include <TClonesArray.h> | |
38 | #include <TFile.h> | |
39 | #include "AliLog.h" | |
40 | #include "AliCDBManager.h" | |
41 | ||
dd89d4d2 | 42 | ClassImp(AliTPCAlign) |
2574314d | 43 | |
44 | AliTPCAlign::AliTPCAlign() : | |
45 | TObject(), | |
46 | fFileLoc(0x0), | |
47 | fFileGlob(0x0), | |
48 | fTPCAlignObj(0x0), | |
49 | fX(), | |
50 | fA(), | |
51 | fY(), | |
52 | fDebug(0) | |
53 | { | |
54 | // | |
55 | // default constructor | |
56 | // | |
57 | } | |
58 | //________________________________________________________________________ | |
59 | AliTPCAlign::AliTPCAlign(Int_t reportloc, Int_t reportglob) : | |
60 | TObject(), | |
61 | fFileLoc(0x0), | |
62 | fFileGlob(0x0), | |
63 | fTPCAlignObj(0x0), | |
64 | fX(6,1), | |
65 | fA(24,6), | |
66 | fY(24,1), | |
67 | fDebug(0) | |
68 | { | |
69 | // | |
70 | // constructor - defines data files | |
71 | // | |
72 | fFileLoc = new Char_t[80]; | |
73 | fFileGlob = new Char_t[80]; | |
74 | Char_t path[50]; | |
75 | sprintf(path,gSystem->Getenv("ALICE_ROOT")); | |
76 | // | |
77 | sprintf(fFileLoc,"%s/TPC/Survey_%d_TPC.txt",path,reportloc); | |
78 | sprintf(fFileGlob,"%s/TPC/Survey_%d_TPC.txt",path,reportglob); | |
79 | // | |
80 | ||
81 | } | |
82 | //_________________________________________________________________________ | |
83 | AliTPCAlign::AliTPCAlign(const AliTPCAlign &align) : | |
84 | TObject(), | |
85 | fFileLoc(0x0), | |
86 | fFileGlob(0x0), | |
87 | fTPCAlignObj(0x0), | |
88 | fX(), | |
89 | fA(), | |
90 | fY(), | |
91 | fDebug(0) | |
92 | { | |
93 | // | |
94 | // copy constructor - dummy | |
95 | // | |
96 | fDebug = align.fDebug; | |
97 | } | |
98 | //__________________________________________________________________________ | |
99 | AliTPCAlign & AliTPCAlign::operator =(const AliTPCAlign & align) | |
100 | { | |
101 | // | |
102 | // assignment operator - dummy | |
103 | // | |
104 | fDebug=align.fDebug; | |
105 | return (*this); | |
106 | } | |
107 | ||
108 | //__________________________________________________________________________ | |
109 | AliTPCAlign::~AliTPCAlign(){ | |
110 | // | |
111 | // destructor | |
112 | // | |
113 | if(fTPCAlignObj) delete fTPCAlignObj; | |
114 | } | |
115 | //__________________________________________________________________________ | |
116 | Bool_t AliTPCAlign::LoadSurveyData(){ | |
117 | // | |
118 | // for a time being it loads from the local file the surveyed point | |
119 | // and has the ideal points hardwired. I am waiting until Ricardo | |
120 | // completes his job | |
121 | // | |
122 | ||
123 | AliSurveyObj * s1 = new AliSurveyObj(); | |
124 | s1->FillFromLocalFile(fFileGlob); | |
125 | // | |
126 | Int_t numberPoints = 8; | |
127 | // | |
128 | TString pointNames[8] = {"T1Final_R04241","T1Final_R05241","T1Final_R06241", | |
129 | "T1Final_R07241","T1Final_R08241","T1Final_R10241", | |
130 | "T1Final_R11241","T1Final_R12241"}; | |
131 | // | |
132 | Float_t surveyedPoints[8][3]; | |
133 | AliSurveyPoint *currPoint; | |
134 | // | |
135 | for(Int_t i=0;i<numberPoints;i++){ | |
136 | currPoint=0; | |
137 | currPoint = (AliSurveyPoint *) s1->GetData()->FindObject(pointNames[i]); | |
138 | // | |
139 | if(currPoint){ | |
140 | surveyedPoints[i][0]=currPoint->GetX(); | |
141 | surveyedPoints[i][1]=currPoint->GetY(); | |
142 | surveyedPoints[i][2]=currPoint->GetZ(); | |
143 | if(fDebug) | |
144 | Printf(Form("INFO: Point \"%s\" coordinates read.", pointNames[i].Data())); | |
145 | } | |
146 | else { | |
147 | if(fDebug){ | |
148 | Printf(Form("ERROR: Essential point missing: \"%s\"", pointNames[i].Data())); | |
149 | return 1; | |
150 | } | |
151 | } | |
152 | } | |
153 | // | |
154 | // Ideal points | |
155 | // | |
156 | Float_t idealPoints[8][3]; | |
157 | // | |
158 | idealPoints[0][0]=0.7973; | |
159 | idealPoints[0][1]=-2.5278; | |
160 | idealPoints[0][2]=3.0165; | |
161 | // | |
162 | idealPoints[1][0]=2.5873; | |
163 | idealPoints[1][1]=-0.5738; | |
164 | idealPoints[1][2]=3.0166; | |
165 | // | |
166 | idealPoints[2][0]=1.7898; | |
167 | idealPoints[2][1]=1.9540; | |
168 | idealPoints[2][2]=3.0164; | |
169 | // | |
170 | idealPoints[3][0]=-0.2237; | |
171 | idealPoints[3][1]=0.7055; | |
172 | idealPoints[3][2]=3.0161; | |
173 | // | |
174 | idealPoints[4][0]=-0.7230; | |
175 | idealPoints[4][1]=0.1598; | |
176 | idealPoints[4][2]=3.0162; | |
177 | // | |
178 | idealPoints[5][0]=0.2225; | |
179 | idealPoints[5][1]=-0.7058; | |
180 | idealPoints[5][2]=3.0166; | |
181 | // | |
182 | idealPoints[6][0]=0.7224; | |
183 | idealPoints[6][1]=-0.1608; | |
184 | idealPoints[6][2]=3.0164; | |
185 | // | |
186 | idealPoints[7][0]=0.4999; | |
187 | idealPoints[7][1]=0.5452; | |
188 | idealPoints[7][2]=3.0164; | |
189 | // | |
190 | // Create and fill matrices a & y | |
191 | // | |
192 | for(Int_t i = 0;i<numberPoints;i++){ | |
193 | for(Int_t j=0;j<3;j++){ | |
194 | fY(i*3+j,0)=surveyedPoints[i][j]-idealPoints[i][j]; | |
195 | ||
196 | } | |
197 | } | |
198 | fA.Zero(); | |
199 | // | |
200 | // | |
201 | // setting matrix a | |
202 | // | |
203 | for(Int_t i=0;i<numberPoints;i++){ | |
204 | fA(3*i,0)= -idealPoints[i][1]; | |
205 | fA(3*i,1)= idealPoints[i][2]; | |
206 | fA(3*i,3)=1.; | |
207 | fA(3*i+1,0)= idealPoints[i][0]; | |
208 | fA(3*i+1,2)= -idealPoints[i][2]; | |
209 | fA(3*i+1,4)= 1.; | |
210 | fA(3*i+2,1)= -idealPoints[i][0]; | |
211 | fA(3*i+2,2)= idealPoints[i][1]; | |
212 | fA(3*i+2,5)=1.; | |
213 | } | |
214 | // | |
215 | delete s1; | |
216 | // | |
217 | return 0; | |
218 | } | |
219 | //_________________________________________________________________ | |
220 | Double_t AliTPCAlign::ComputeTransform(){ | |
221 | // | |
222 | // Here simple matrix operations for the linear least square | |
223 | // The trigonometric function sin is approximated by the angle | |
224 | // and the cos by "1", because angles are very small (Y-convention!) | |
225 | // This secures the linearity of the problem | |
226 | // This method returns a sum of squares of residuals | |
227 | // | |
228 | TMatrixD tt1(TMatrixD::kInverted,(TMatrixD(fA,TMatrixD::kTransposeMult,fA))); | |
229 | fX=TMatrixD(tt1,TMatrixD::kMult,TMatrixD(fA,TMatrixD::kTransposeMult,fY)); | |
230 | // | |
231 | TMatrixD Unit(24,24); | |
232 | Unit.UnitMatrix(); | |
233 | TMatrixD xxt1(TMatrixD::kInverted,TMatrixD(fA,TMatrixD::kTransposeMult,fA)); | |
234 | TMatrixD t(fA,TMatrixD::kMult,TMatrixD(xxt1,TMatrixD::kMultTranspose,fA)); | |
235 | TMatrixD t2(Unit,TMatrixD::kMinus,t); | |
236 | TMatrixD chi2(fY,TMatrixD::kTransposeMult,TMatrixD(t2,TMatrixD::kMult,fY)); | |
237 | // | |
238 | ||
239 | return chi2(0,0); | |
240 | ||
241 | } | |
242 | //_______________________________________________________________________ | |
243 | void AliTPCAlign::CreateAlignObj(){ | |
244 | // | |
245 | // This method creates AliAlignObj and fills it with Euler angles | |
246 | // and shifts. The units are degrees and cm. | |
247 | // | |
248 | fTPCAlignObj = new AliAlignObjParams(); | |
249 | fTPCAlignObj->SetSymName("ALIC_1/TPC_M_1"); | |
250 | fTPCAlignObj->SetVolUID(0); | |
251 | Double_t raddeg = TMath::RadToDeg(); | |
252 | Double_t phi,theta,psi; | |
253 | // | |
254 | phi=fX(0,0)*raddeg; | |
255 | theta=fX(1,0)*raddeg; | |
256 | psi=fX(2,0)*raddeg; | |
257 | // | |
258 | Double_t dx,dy,dz; | |
259 | dx=fX(3,0)*100.; | |
260 | dy=fX(4,0)*100.; | |
261 | dz=fX(5,0)*100.; | |
262 | fTPCAlignObj->SetRotation(psi,theta,phi); | |
263 | fTPCAlignObj->SetTranslation(dx,dy,dz); | |
264 | fTPCAlignObj->Print(""); | |
265 | } | |
266 | //______________________________________________________________________ | |
267 | void AliTPCAlign::Run(){ | |
268 | // | |
269 | // runs the full chain | |
270 | // | |
271 | SetDebug(0); | |
272 | Bool_t flag = LoadSurveyData(); | |
273 | if(flag) { | |
274 | cout<<"Missing points"<<endl; | |
275 | return; | |
276 | } | |
277 | Double_t chi2 = ComputeTransform(); | |
278 | if(chi2>0.01) return; | |
279 | CreateAlignObj(); | |
280 | StoreAlignObj(); | |
281 | // | |
282 | } | |
283 | //_________________________________________________________________________ | |
284 | void AliTPCAlign::StoreAlignObj(){ | |
285 | // | |
286 | AliCDBManager* cdb = AliCDBManager::Instance(); | |
287 | if(!cdb->IsDefaultStorageSet()) cdb->SetDefaultStorage("local://$ALICE_ROOT"); | |
288 | // | |
289 | TClonesArray *array = new TClonesArray("AliAlignObjParams",1); | |
290 | // | |
291 | Double_t shifts[3]; | |
292 | Double_t rots[3]; | |
293 | // | |
294 | fTPCAlignObj->GetPars(shifts,rots); | |
295 | new((*array)[0]) AliAlignObjParams(fTPCAlignObj->GetSymName(),0,shifts[0], | |
296 | shifts[1],shifts[2],rots[0],rots[1],rots[2],kTRUE); | |
297 | ||
298 | // | |
299 | // storing either in the OCDB or local file | |
300 | // | |
301 | if( TString(gSystem->Getenv("TOCDB")) != TString("kTRUE") ){ | |
302 | // save on file | |
303 | const char* filename = "TPCSurveyMisalignment.root"; | |
304 | Char_t fullname[80]; | |
305 | sprintf(fullname,"%s/TPC/%s",gSystem->Getenv("ALICE_ROOT"),filename); | |
306 | TFile *f = new TFile(fullname,"RECREATE"); | |
307 | if(!f){ | |
308 | AliError("cannot open file for output\n"); | |
309 | return; | |
310 | } | |
311 | AliInfo(Form("Saving alignment objects to the file %s", filename)); | |
312 | f->cd(); | |
313 | f->WriteObject(array,"TPCAlignObjs","kSingleKey"); | |
314 | f->Close(); | |
315 | }else{ | |
316 | // save in CDB storage | |
317 | AliCDBStorage* storage; | |
318 | // | |
319 | TString Storage = gSystem->Getenv("STORAGE"); | |
320 | if(!Storage.BeginsWith("local://") && !Storage.BeginsWith("alien://")) { | |
321 | AliError(Form( | |
322 | "STORAGE variable set to %s is not valid. Exiting\n",Storage.Data())); | |
323 | return; | |
324 | } | |
325 | storage = cdb->GetStorage(Storage.Data()); | |
326 | if(!storage){ | |
327 | AliError(Form("Unable to open storage %s\n",Storage.Data())); | |
328 | return; | |
329 | } | |
330 | // | |
331 | AliCDBMetaData* md = new AliCDBMetaData(); | |
332 | md->SetResponsible("Marek Kowalski"); | |
333 | md->SetComment("Full misalignment of entire TPC from surveyors"); | |
334 | AliCDBId id("TPC/Align/Data",0,AliCDBRunRange::Infinity()); | |
335 | storage->Put(array,id,md); | |
336 | } | |
337 | ||
338 | } |