]>
Commit | Line | Data |
---|---|---|
9318a5b4 | 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 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // Class to make a internal alignemnt of TPC chambers // | |
20 | // | |
21 | // Different linear tranformation investigated | |
22 | // 12 parameters - arbitrary transformation | |
23 | // 9 parameters - scaling fixed to 1 | |
24 | // 6 parameters - | |
25 | //// | |
26 | //// Only the 12 parameter version works so far... | |
27 | //// | |
28 | //// | |
29 | //// | |
30 | ||
31 | #include "TLinearFitter.h" | |
32 | #include "AliTPCcalibAlign.h" | |
33 | #include "AliExternalTrackParam.h" | |
e4042305 | 34 | #include "AliTPCTracklet.h" |
35 | #include "TH1D.h" | |
7eaa723e | 36 | #include "TVectorD.h" |
e149f26d | 37 | #include "TTreeStream.h" |
7eaa723e | 38 | #include "TFile.h" |
9318a5b4 | 39 | |
40 | #include <iostream> | |
e4042305 | 41 | #include <sstream> |
9318a5b4 | 42 | using namespace std; |
43 | ||
44 | ClassImp(AliTPCcalibAlign) | |
45 | ||
46 | AliTPCcalibAlign::AliTPCcalibAlign() | |
e4042305 | 47 | : fDphiHistArray(72*72), |
48 | fDthetaHistArray(72*72), | |
49 | fDyHistArray(72*72), | |
50 | fDzHistArray(72*72), | |
51 | fFitterArray12(72*72), | |
52 | fFitterArray9(72*72), | |
53 | fFitterArray6(72*72) | |
9318a5b4 | 54 | { |
55 | // | |
56 | // Constructor | |
57 | // | |
58 | for (Int_t i=0;i<72*72;++i) { | |
59 | fPoints[i]=0; | |
60 | } | |
61 | } | |
62 | ||
e149f26d | 63 | AliTPCcalibAlign::AliTPCcalibAlign(const Text_t *name, const Text_t *title) |
64 | :AliTPCcalibBase(), | |
65 | fDphiHistArray(72*72), | |
66 | fDthetaHistArray(72*72), | |
67 | fDyHistArray(72*72), | |
68 | fDzHistArray(72*72), | |
69 | fFitterArray12(72*72), | |
70 | fFitterArray9(72*72), | |
71 | fFitterArray6(72*72) | |
72 | { | |
73 | // | |
74 | // Constructor | |
75 | // | |
76 | SetName(name); | |
77 | SetTitle(title); | |
78 | for (Int_t i=0;i<72*72;++i) { | |
79 | fPoints[i]=0; | |
80 | } | |
81 | } | |
82 | ||
9318a5b4 | 83 | AliTPCcalibAlign::~AliTPCcalibAlign() { |
84 | // | |
85 | // destructor | |
86 | // | |
87 | } | |
88 | ||
e4042305 | 89 | void AliTPCcalibAlign::Process(AliTPCseed *seed) { |
90 | TObjArray tracklets= | |
91 | AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman, | |
92 | kFALSE,20,2); | |
cbc19295 | 93 | // TObjArray trackletsL= |
94 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kLinear, | |
95 | // kFALSE,20,2); | |
96 | // TObjArray trackletsQ= | |
97 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kQuadratic, | |
98 | // kFALSE,20,2); | |
99 | // TObjArray trackletsR= | |
100 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kRiemann, | |
101 | // kFALSE,20,2); | |
e4042305 | 102 | tracklets.SetOwner(); |
cbc19295 | 103 | // trackletsL.SetOwner(); |
104 | // trackletsQ.SetOwner(); | |
105 | // trackletsR.SetOwner(); | |
e4042305 | 106 | if (tracklets.GetEntries()==2) { |
107 | AliTPCTracklet *t1=static_cast<AliTPCTracklet*>(tracklets[0]); | |
108 | AliTPCTracklet *t2=static_cast<AliTPCTracklet*>(tracklets[1]); | |
109 | if (t1->GetSector()>t2->GetSector()) { | |
110 | AliTPCTracklet* tmp=t1; | |
111 | t1=t2; | |
112 | t2=tmp; | |
113 | } | |
114 | AliExternalTrackParam *common1=0,*common2=0; | |
115 | if (AliTPCTracklet::PropagateToMeanX(*t1,*t2,common1,common2)) | |
116 | ProcessTracklets(*common1,*common2,t1->GetSector(),t2->GetSector()); | |
117 | delete common1; | |
118 | delete common2; | |
119 | } | |
cbc19295 | 120 | |
e4042305 | 121 | } |
122 | ||
7eaa723e | 123 | void AliTPCcalibAlign::Analyze(){ |
124 | // | |
125 | // Analyze function | |
126 | // | |
127 | EvalFitters(); | |
128 | } | |
129 | ||
130 | ||
131 | void AliTPCcalibAlign::Terminate(){ | |
132 | // | |
133 | // Terminate function | |
134 | // call base terminate + Eval of fitters | |
135 | // | |
136 | if (GetDebugLevel()>0) Info("AliTPCcalibAlign","Teminate"); | |
137 | EvalFitters(); | |
138 | AliTPCcalibBase::Terminate(); | |
139 | } | |
140 | ||
141 | ||
142 | ||
143 | ||
e4042305 | 144 | void AliTPCcalibAlign::ProcessTracklets(const AliExternalTrackParam &tp1, |
145 | const AliExternalTrackParam &tp2, | |
146 | Int_t s1,Int_t s2) { | |
147 | ||
e149f26d | 148 | |
e4042305 | 149 | if (s2-s1==36) {//only inner-outer |
7eaa723e | 150 | if (!fDphiHistArray[GetIndex(s1,s2)]) { |
e4042305 | 151 | stringstream name; |
152 | stringstream title; | |
153 | name<<"hist_phi_"<<s1<<"_"<<s2; | |
154 | title<<"Phi Missalignment for sectors "<<s1<<" and "<<s2; | |
7eaa723e | 155 | fDphiHistArray[GetIndex(s1,s2)]=new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad |
156 | ((TH1D*)fDphiHistArray[GetIndex(s1,s2)])->SetDirectory(0); | |
e4042305 | 157 | } |
7eaa723e | 158 | if (!fDthetaHistArray[GetIndex(s1,s2)]) { |
e4042305 | 159 | stringstream name; |
160 | stringstream title; | |
161 | name<<"hist_theta_"<<s1<<"_"<<s2; | |
162 | title<<"Theta Missalignment for sectors "<<s1<<" and "<<s2; | |
7eaa723e | 163 | fDthetaHistArray[GetIndex(s1,s2)]=new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad |
164 | ((TH1D*)fDthetaHistArray[GetIndex(s1,s2)])->SetDirectory(0); | |
e4042305 | 165 | } |
7eaa723e | 166 | if (!fDyHistArray[GetIndex(s1,s2)]) { |
e4042305 | 167 | stringstream name; |
168 | stringstream title; | |
169 | name<<"hist_y_"<<s1<<"_"<<s2; | |
170 | title<<"Y Missalignment for sectors "<<s1<<" and "<<s2; | |
7eaa723e | 171 | fDyHistArray[GetIndex(s1,s2)]=new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm |
172 | ((TH1D*)fDyHistArray[GetIndex(s1,s2)])->SetDirectory(0); | |
e4042305 | 173 | } |
7eaa723e | 174 | if (!fDzHistArray[GetIndex(s1,s2)]) { |
e4042305 | 175 | stringstream name; |
176 | stringstream title; | |
177 | name<<"hist_z_"<<s1<<"_"<<s2; | |
178 | title<<"Z Missalignment for sectors "<<s1<<" and "<<s2; | |
7eaa723e | 179 | fDzHistArray[GetIndex(s1,s2)]=new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm |
180 | ((TH1D*)fDzHistArray[GetIndex(s1,s2)])->SetDirectory(0); | |
e4042305 | 181 | } |
7eaa723e | 182 | static_cast<TH1D*>(fDphiHistArray[GetIndex(s1,s2)]) |
e4042305 | 183 | ->Fill(TMath::ASin(tp1.GetSnp()) |
184 | -TMath::ASin(tp2.GetSnp())); | |
7eaa723e | 185 | static_cast<TH1D*>(fDthetaHistArray[GetIndex(s1,s2)]) |
e4042305 | 186 | ->Fill(TMath::ATan(tp1.GetTgl()) |
187 | -TMath::ATan(tp2.GetTgl())); | |
7eaa723e | 188 | static_cast<TH1D*>(fDyHistArray[GetIndex(s1,s2)]) |
e4042305 | 189 | ->Fill(tp1.GetY() |
190 | -tp2.GetY()); | |
7eaa723e | 191 | static_cast<TH1D*>(fDzHistArray[GetIndex(s1,s2)]) |
e4042305 | 192 | ->Fill(tp1.GetZ() |
193 | -tp2.GetZ()); | |
194 | } | |
7eaa723e | 195 | |
e4042305 | 196 | |
197 | ||
198 | ||
9318a5b4 | 199 | // |
200 | // Process function to fill fitters | |
201 | // | |
202 | Double_t t1[5],t2[5]; | |
203 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
7eaa723e | 204 | Double_t &x2=t2[0], &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 205 | x1 =tp1.GetX(); |
206 | y1 =tp1.GetY(); | |
207 | z1 =tp1.GetZ(); | |
208 | Double_t snp1=tp1.GetSnp(); | |
209 | dydx1=snp1/TMath::Sqrt(1.-snp1*snp1); | |
210 | Double_t tgl1=tp1.GetTgl(); | |
211 | // dz/dx = 1/(cos(theta)*cos(phi)) | |
7eaa723e | 212 | dzdx1=tgl1/TMath::Sqrt(1.-snp1*snp1); |
213 | x2 =tp2.GetX(); | |
9318a5b4 | 214 | y2 =tp2.GetY(); |
215 | z2 =tp2.GetZ(); | |
216 | Double_t snp2=tp2.GetSnp(); | |
217 | dydx2=snp2/TMath::Sqrt(1.-snp2*snp2); | |
218 | Double_t tgl2=tp2.GetTgl(); | |
7eaa723e | 219 | dzdx2=tgl2/TMath::Sqrt(1.-snp2*snp2); |
9318a5b4 | 220 | |
7eaa723e | 221 | // |
222 | // | |
223 | // | |
224 | if (fStreamLevel>1){ | |
225 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
226 | if (cstream){ | |
227 | static TVectorD vec1(5); | |
228 | static TVectorD vec2(5); | |
229 | vec1.SetElements(t1); | |
230 | vec2.SetElements(t2); | |
231 | AliExternalTrackParam *p1 = &((AliExternalTrackParam&)tp1); | |
232 | AliExternalTrackParam *p2 = &((AliExternalTrackParam&)tp2); | |
233 | (*cstream)<<"Tracklet"<< | |
234 | "tp1.="<<p1<< | |
235 | "tp2.="<<p2<< | |
236 | "v1.="<<&vec1<< | |
237 | "v2.="<<&vec2<< | |
238 | "s1="<<s1<< | |
239 | "s2="<<s2<< | |
240 | "\n"; | |
241 | } | |
242 | } | |
9318a5b4 | 243 | Process12(t1,t2,GetOrMakeFitter12(s1,s2)); |
7eaa723e | 244 | Process9(t1,t2,GetOrMakeFitter9(s1,s2)); |
245 | Process6(t1,t2,GetOrMakeFitter6(s1,s2)); | |
9318a5b4 | 246 | ++fPoints[72*s1+s2]; |
247 | } | |
248 | ||
7eaa723e | 249 | void AliTPCcalibAlign::Process12(const Double_t *t1, |
250 | const Double_t *t2, | |
9318a5b4 | 251 | TLinearFitter *fitter) { |
252 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
253 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
254 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
255 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
256 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
257 | // | |
258 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
259 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
260 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
7eaa723e | 261 | const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; |
262 | const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; | |
9318a5b4 | 263 | |
264 | // TODO: | |
7eaa723e | 265 | Double_t sy = 0.1; |
266 | Double_t sz = 0.1; | |
267 | Double_t sdydx = 0.001; | |
268 | Double_t sdzdx = 0.001; | |
9318a5b4 | 269 | |
270 | Double_t p[12]; | |
271 | Double_t value; | |
272 | ||
273 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
274 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
275 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
276 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
277 | p[3+0] = x1; // a10 | |
278 | p[3+1] = y1; // a11 | |
279 | p[3+2] = z1; // a12 | |
280 | p[9+1] = 1.; // a13 | |
281 | p[0+1] = y1*dydx2; // a01 | |
282 | p[0+2] = z1*dydx2; // a02 | |
283 | p[9+0] = dydx2; // a03 | |
284 | value = y2; | |
285 | fitter->AddPoint(p,value,sy); | |
286 | ||
287 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
288 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
289 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2; | |
290 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
291 | p[6+0] = x1; // a20 | |
292 | p[6+1] = y1; // a21 | |
293 | p[6+2] = z1; // a22 | |
294 | p[9+2] = 1.; // a23 | |
295 | p[0+1] = y1*dzdx2; // a01 | |
296 | p[0+2] = z1*dzdx2; // a02 | |
297 | p[9+0] = dzdx2; // a03 | |
298 | value = z2; | |
299 | fitter->AddPoint(p,value,sz); | |
300 | ||
301 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
302 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
303 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
304 | p[3+0] = 1.; // a10 | |
305 | p[3+1] = dydx1; // a11 | |
306 | p[3+2] = dzdx1; // a12 | |
307 | p[0+0] = -dydx2; // a00 | |
308 | p[0+1] = -dydx1*dydx2; // a01 | |
309 | p[0+2] = -dzdx1*dydx2; // a02 | |
310 | value = 0.; | |
311 | fitter->AddPoint(p,value,sdydx); | |
312 | ||
313 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
314 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
315 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
316 | p[6+0] = 1; // a20 | |
317 | p[6+1] = dydx1; // a21 | |
318 | p[6+2] = dzdx1; // a22 | |
319 | p[0+0] = -dzdx2; // a00 | |
320 | p[0+1] = -dydx1*dzdx2; // a01 | |
321 | p[0+2] = -dzdx1*dzdx2; // a02 | |
322 | value = 0.; | |
323 | fitter->AddPoint(p,value,sdzdx); | |
324 | } | |
325 | ||
326 | void AliTPCcalibAlign::Process9(Double_t *t1, | |
327 | Double_t *t2, | |
328 | TLinearFitter *fitter) { | |
329 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
330 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
331 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
332 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
333 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
334 | // | |
335 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
336 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
337 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
338 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 339 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 340 | |
341 | // TODO: | |
342 | Double_t sy = 1.; | |
343 | Double_t sz = 1.; | |
344 | Double_t sdydx = 1.; | |
345 | Double_t sdzdx = 1.; | |
346 | ||
347 | Double_t p[12]; | |
348 | Double_t value; | |
349 | ||
350 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
351 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
352 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a03)*dydx2 | |
353 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
354 | p[3+0] = x1; | |
355 | p[3+1] = y1; | |
356 | p[3+2] = z1; | |
357 | p[9+1] = 1.; | |
358 | p[0+1] = y1*dydx2; | |
359 | p[0+2] = z1*dydx2; | |
360 | p[9+0] = dydx2; | |
361 | value = y2; | |
362 | fitter->AddPoint(p,value,sy); | |
363 | ||
364 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
365 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
366 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a03)*dzdx2; | |
367 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
368 | p[6+0] = x1; | |
369 | p[6+1] = y1; | |
370 | p[6+2] = z1; | |
371 | p[9+2] = 1.; | |
372 | p[0+1] = y1*dzdx2; | |
373 | p[0+2] = z1*dzdx2; | |
374 | p[9+0] = dzdx2; | |
375 | value = z2; | |
376 | fitter->AddPoint(p,value,sz); | |
377 | ||
378 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
379 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
380 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
381 | p[3+0] = 1.; | |
382 | p[3+1] = dydx1; | |
383 | p[3+2] = dzdx1; | |
384 | p[0+0] = -dydx2; | |
385 | p[0+1] = -dydx1*dydx2; | |
386 | p[0+2] = -dzdx1*dydx2; | |
387 | value = 0.; | |
388 | fitter->AddPoint(p,value,sdydx); | |
389 | ||
390 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
391 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
392 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
393 | p[6+0] = 1; | |
394 | p[6+1] = dydx1; | |
395 | p[6+2] = dzdx1; | |
396 | p[0+0] = -dzdx2; | |
397 | p[0+1] = -dydx1*dzdx2; | |
398 | p[0+2] = -dzdx1*dzdx2; | |
399 | value = 0.; | |
400 | fitter->AddPoint(p,value,sdzdx); | |
401 | } | |
402 | ||
403 | void AliTPCcalibAlign::Process6(Double_t *t1, | |
404 | Double_t *t2, | |
405 | TLinearFitter *fitter) { | |
406 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
407 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
408 | // z2 = a20*x1 + a21*y1 + 1 *z1 +a23 | |
409 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
410 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
411 | // | |
412 | // 1 -a01 0 a03 x -p[0] x p[3] | |
413 | // a10 1 0 a13 ==> p[0] x x p[4] | |
414 | // a20 a21 1 a23 p[1] p[2] x p[5] | |
415 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 416 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 417 | |
418 | // TODO: | |
7eaa723e | 419 | Double_t sy = 0.1; |
420 | Double_t sz = 0.1; | |
421 | Double_t sdydx = 0.001; | |
422 | Double_t sdzdx = 0.001; | |
9318a5b4 | 423 | |
424 | Double_t p[12]; | |
425 | Double_t value; | |
426 | ||
427 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
428 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
429 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
430 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
431 | p[3+0] = x1; | |
432 | p[3+1] = y1; | |
433 | p[3+2] = z1; | |
434 | p[9+1] = 1.; | |
435 | p[0+1] = y1*dydx2; | |
436 | p[0+2] = z1*dydx2; | |
437 | p[9+0] = dydx2; | |
438 | value = y2; | |
439 | fitter->AddPoint(p,value,sy); | |
440 | ||
441 | // x2 = 1 *x1 +-a01*y1 + 0 + a03 | |
442 | // z2 = a20*x1 + a21*y1 + 1 *z1 + a23 | |
443 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 +a03)*dzdx2; | |
444 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
445 | p[6+0] = x1; | |
446 | p[6+1] = y1; | |
447 | p[6+2] = z1; | |
448 | p[9+2] = 1.; | |
449 | p[0+1] = y1*dzdx2; | |
450 | p[0+2] = z1*dzdx2; | |
451 | p[9+0] = dzdx2; | |
452 | value = z2; | |
453 | fitter->AddPoint(p,value,sz); | |
454 | ||
455 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
456 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
457 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
458 | p[3+0] = 1.; | |
459 | p[3+1] = dydx1; | |
460 | p[3+2] = dzdx1; | |
461 | p[0+0] = -dydx2; | |
462 | p[0+1] = -dydx1*dydx2; | |
463 | p[0+2] = -dzdx1*dydx2; | |
464 | value = 0.; | |
465 | fitter->AddPoint(p,value,sdydx); | |
466 | ||
467 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
468 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
469 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
470 | p[6+0] = 1; | |
471 | p[6+1] = dydx1; | |
472 | p[6+2] = dzdx1; | |
473 | p[0+0] = -dzdx2; | |
474 | p[0+1] = -dydx1*dzdx2; | |
475 | p[0+2] = -dzdx1*dzdx2; | |
476 | value = 0.; | |
477 | fitter->AddPoint(p,value,sdzdx); | |
478 | } | |
479 | ||
7eaa723e | 480 | |
481 | ||
482 | ||
483 | void AliTPCcalibAlign::EvalFitters() { | |
484 | // | |
485 | // Analyze function | |
486 | // | |
487 | // Perform the fitting using linear fitters | |
488 | // | |
489 | Int_t kMinPoints =50; | |
9318a5b4 | 490 | TLinearFitter *f; |
7eaa723e | 491 | TFile fff("alignDebug.root","recreate"); |
9318a5b4 | 492 | for (Int_t s1=0;s1<72;++s1) |
7eaa723e | 493 | for (Int_t s2=0;s2<72;++s2){ |
494 | if ((f=GetFitter12(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { | |
9318a5b4 | 495 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; |
496 | if (!f->Eval()) { | |
497 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
7eaa723e | 498 | f->Write(Form("f12_%d_%d",s1,s2)); |
499 | }else{ | |
500 | f->Write(Form("f12_%d_%d",s1,s2)); | |
9318a5b4 | 501 | } |
502 | } | |
7eaa723e | 503 | if ((f=GetFitter9(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { |
504 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
505 | if (!f->Eval()) { | |
506 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
507 | }else{ | |
508 | f->Write(Form("f9_%d_%d",s1,s2)); | |
509 | } | |
510 | } | |
511 | if ((f=GetFitter6(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { | |
512 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
513 | if (!f->Eval()) { | |
514 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
515 | }else{ | |
516 | f->Write(Form("f6_%d_%d",s1,s2)); | |
517 | } | |
518 | } | |
519 | } | |
9318a5b4 | 520 | /* |
521 | ||
522 | fitter->Eval(); | |
523 | fitter->Eval(); | |
524 | chi212 = align->GetChisquare()/(4.*entries); | |
525 | ||
526 | TMatrixD mat(13,13); | |
527 | TVectorD par(13); | |
528 | align->GetParameters(par); | |
529 | align->GetCovarianceMatrix(mat); | |
530 | ||
531 | // | |
532 | // | |
533 | for (Int_t i=0; i<12;i++){ | |
534 | palign12(i)= par(i+1); | |
535 | for (Int_t j=0; j<12;j++){ | |
536 | pcovar12(i,j) = mat(i+1,j+1); | |
537 | pcovar12(i,j) *= chi212; | |
538 | } | |
539 | } | |
540 | // | |
541 | for (Int_t i=0; i<12;i++){ | |
542 | psigma12(i) = TMath::Sqrt(pcovar12(i,i)); | |
543 | palignR12(i) = palign12(i)/TMath::Sqrt(pcovar12(i,i)); | |
544 | for (Int_t j=0; j<12;j++){ | |
545 | pcovarN12(i,j) = pcovar12(i,j)/TMath::Sqrt(pcovar12(i,i)*pcovar12(j,j)); | |
546 | } | |
547 | } | |
548 | */ | |
549 | } | |
550 | ||
551 | Bool_t AliTPCcalibAlign::GetTransformation12(Int_t s1,Int_t s2,TMatrixD &a) { | |
552 | if (!GetFitter12(s1,s2)) | |
553 | return false; | |
554 | else { | |
555 | TVectorD p(12); | |
556 | cerr<<"foo"<<endl; | |
557 | GetFitter12(s1,s2)->GetParameters(p); | |
558 | cerr<<"bar"<<endl; | |
559 | a.ResizeTo(4,4); | |
560 | a[0][0]=p[0]; | |
561 | a[0][1]=p[1]; | |
562 | a[0][2]=p[2]; | |
563 | a[0][3]=p[9]; | |
564 | a[1][0]=p[3]; | |
565 | a[1][1]=p[4]; | |
566 | a[1][2]=p[5]; | |
567 | a[1][3]=p[10]; | |
568 | a[2][0]=p[6]; | |
569 | a[2][1]=p[7]; | |
570 | a[2][2]=p[8]; | |
571 | a[2][3]=p[11]; | |
572 | a[3][0]=0.; | |
573 | a[3][1]=0.; | |
574 | a[3][2]=0.; | |
575 | a[3][3]=1.; | |
576 | return true; | |
577 | } | |
578 | } | |
579 | ||
580 | Bool_t AliTPCcalibAlign::GetTransformation9(Int_t s1,Int_t s2,TMatrixD &a) { | |
581 | if (!GetFitter9(s1,s2)) | |
582 | return false; | |
583 | else { | |
584 | TVectorD p(9); | |
585 | GetFitter9(s1,s2)->GetParameters(p); | |
586 | a.ResizeTo(4,4); | |
587 | a[0][0]=p[0]; | |
588 | a[0][1]=p[1]; | |
589 | a[0][2]=p[2]; | |
590 | a[0][3]=p[9]; | |
591 | a[1][0]=p[3]; | |
592 | a[1][1]=p[4]; | |
593 | a[1][2]=p[5]; | |
594 | a[1][3]=p[10]; | |
595 | a[2][0]=p[6]; | |
596 | a[2][1]=p[7]; | |
597 | a[2][2]=p[8]; | |
598 | a[2][3]=p[11]; | |
599 | a[3][0]=0.; | |
600 | a[3][1]=0.; | |
601 | a[3][2]=0.; | |
602 | a[3][3]=1.; | |
603 | return true; | |
604 | } | |
605 | } | |
606 | ||
607 | Bool_t AliTPCcalibAlign::GetTransformation6(Int_t s1,Int_t s2,TMatrixD &a) { | |
608 | if (!GetFitter6(s1,s2)) | |
609 | return false; | |
610 | else { | |
611 | TVectorD p(6); | |
612 | cerr<<"foo"<<endl; | |
613 | GetFitter6(s1,s2)->GetParameters(p); | |
614 | cerr<<"bar"<<endl; | |
615 | a.ResizeTo(4,4); | |
616 | a[0][0]=p[0]; | |
617 | a[0][1]=p[1]; | |
618 | a[0][2]=p[2]; | |
619 | a[0][3]=p[9]; | |
620 | a[1][0]=p[3]; | |
621 | a[1][1]=p[4]; | |
622 | a[1][2]=p[5]; | |
623 | a[1][3]=p[10]; | |
624 | a[2][0]=p[6]; | |
625 | a[2][1]=p[7]; | |
626 | a[2][2]=p[8]; | |
627 | a[2][3]=p[11]; | |
628 | a[3][0]=0.; | |
629 | a[3][1]=0.; | |
630 | a[3][2]=0.; | |
631 | a[3][3]=1.; | |
632 | return true; | |
633 | } | |
634 | } |