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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" | |
e149f26d | 36 | #include "TTreeStream.h" |
9318a5b4 | 37 | |
38 | #include <iostream> | |
e4042305 | 39 | #include <sstream> |
9318a5b4 | 40 | using namespace std; |
41 | ||
42 | ClassImp(AliTPCcalibAlign) | |
43 | ||
44 | AliTPCcalibAlign::AliTPCcalibAlign() | |
e4042305 | 45 | : fDphiHistArray(72*72), |
46 | fDthetaHistArray(72*72), | |
47 | fDyHistArray(72*72), | |
48 | fDzHistArray(72*72), | |
49 | fFitterArray12(72*72), | |
50 | fFitterArray9(72*72), | |
51 | fFitterArray6(72*72) | |
9318a5b4 | 52 | { |
53 | // | |
54 | // Constructor | |
55 | // | |
56 | for (Int_t i=0;i<72*72;++i) { | |
57 | fPoints[i]=0; | |
58 | } | |
59 | } | |
60 | ||
e149f26d | 61 | AliTPCcalibAlign::AliTPCcalibAlign(const Text_t *name, const Text_t *title) |
62 | :AliTPCcalibBase(), | |
63 | fDphiHistArray(72*72), | |
64 | fDthetaHistArray(72*72), | |
65 | fDyHistArray(72*72), | |
66 | fDzHistArray(72*72), | |
67 | fFitterArray12(72*72), | |
68 | fFitterArray9(72*72), | |
69 | fFitterArray6(72*72) | |
70 | { | |
71 | // | |
72 | // Constructor | |
73 | // | |
74 | SetName(name); | |
75 | SetTitle(title); | |
76 | for (Int_t i=0;i<72*72;++i) { | |
77 | fPoints[i]=0; | |
78 | } | |
79 | } | |
80 | ||
9318a5b4 | 81 | AliTPCcalibAlign::~AliTPCcalibAlign() { |
82 | // | |
83 | // destructor | |
84 | // | |
85 | } | |
86 | ||
e4042305 | 87 | void AliTPCcalibAlign::Process(AliTPCseed *seed) { |
88 | TObjArray tracklets= | |
89 | AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman, | |
90 | kFALSE,20,2); | |
cbc19295 | 91 | // TObjArray trackletsL= |
92 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kLinear, | |
93 | // kFALSE,20,2); | |
94 | // TObjArray trackletsQ= | |
95 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kQuadratic, | |
96 | // kFALSE,20,2); | |
97 | // TObjArray trackletsR= | |
98 | // AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kRiemann, | |
99 | // kFALSE,20,2); | |
e4042305 | 100 | tracklets.SetOwner(); |
cbc19295 | 101 | // trackletsL.SetOwner(); |
102 | // trackletsQ.SetOwner(); | |
103 | // trackletsR.SetOwner(); | |
e4042305 | 104 | if (tracklets.GetEntries()==2) { |
105 | AliTPCTracklet *t1=static_cast<AliTPCTracklet*>(tracklets[0]); | |
106 | AliTPCTracklet *t2=static_cast<AliTPCTracklet*>(tracklets[1]); | |
107 | if (t1->GetSector()>t2->GetSector()) { | |
108 | AliTPCTracklet* tmp=t1; | |
109 | t1=t2; | |
110 | t2=tmp; | |
111 | } | |
112 | AliExternalTrackParam *common1=0,*common2=0; | |
113 | if (AliTPCTracklet::PropagateToMeanX(*t1,*t2,common1,common2)) | |
114 | ProcessTracklets(*common1,*common2,t1->GetSector(),t2->GetSector()); | |
115 | delete common1; | |
116 | delete common2; | |
117 | } | |
cbc19295 | 118 | |
e4042305 | 119 | } |
120 | ||
121 | void AliTPCcalibAlign::ProcessTracklets(const AliExternalTrackParam &tp1, | |
122 | const AliExternalTrackParam &tp2, | |
123 | Int_t s1,Int_t s2) { | |
124 | ||
e149f26d | 125 | if (fStreamLevel>1){ |
126 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
127 | if (cstream){ | |
128 | AliExternalTrackParam *p1 = &((AliExternalTrackParam&)tp1); | |
129 | AliExternalTrackParam *p2 = &((AliExternalTrackParam&)tp2); | |
130 | (*cstream)<<"Tracklet"<< | |
131 | "tp1.="<<p1<< | |
132 | "tp2.="<<p2<< | |
133 | "s1="<<s1<< | |
134 | "s2="<<s2<< | |
135 | "\n"; | |
136 | } | |
137 | } | |
138 | ||
e4042305 | 139 | if (s2-s1==36) {//only inner-outer |
140 | if (!fDphiHistArray[s1*72+s2]) { | |
141 | stringstream name; | |
142 | stringstream title; | |
143 | name<<"hist_phi_"<<s1<<"_"<<s2; | |
144 | title<<"Phi Missalignment for sectors "<<s1<<" and "<<s2; | |
145 | fDphiHistArray[s1*72+s2]=new TH1D(name.str().c_str(),title.str().c_str(),1024,-0.01,0.01); // +/- 10 mrad | |
146 | ((TH1D*)fDphiHistArray[s1*72+s2])->SetDirectory(0); | |
147 | } | |
148 | if (!fDthetaHistArray[s1*72+s2]) { | |
149 | stringstream name; | |
150 | stringstream title; | |
151 | name<<"hist_theta_"<<s1<<"_"<<s2; | |
152 | title<<"Theta Missalignment for sectors "<<s1<<" and "<<s2; | |
153 | fDthetaHistArray[s1*72+s2]=new TH1D(name.str().c_str(),title.str().c_str(),1024,-0.01,0.01); // +/- 10 mrad | |
154 | ((TH1D*)fDthetaHistArray[s1*72+s2])->SetDirectory(0); | |
155 | } | |
156 | if (!fDyHistArray[s1*72+s2]) { | |
157 | stringstream name; | |
158 | stringstream title; | |
159 | name<<"hist_y_"<<s1<<"_"<<s2; | |
160 | title<<"Y Missalignment for sectors "<<s1<<" and "<<s2; | |
161 | fDyHistArray[s1*72+s2]=new TH1D(name.str().c_str(),title.str().c_str(),1024,-0.3,0.3); // +/- 3 mm | |
162 | ((TH1D*)fDyHistArray[s1*72+s2])->SetDirectory(0); | |
163 | } | |
164 | if (!fDzHistArray[s1*72+s2]) { | |
165 | stringstream name; | |
166 | stringstream title; | |
167 | name<<"hist_z_"<<s1<<"_"<<s2; | |
168 | title<<"Z Missalignment for sectors "<<s1<<" and "<<s2; | |
169 | fDzHistArray[s1*72+s2]=new TH1D(name.str().c_str(),title.str().c_str(),1024,-0.3,0.3); // +/- 3 mm | |
170 | ((TH1D*)fDzHistArray[s1*72+s2])->SetDirectory(0); | |
171 | } | |
172 | static_cast<TH1D*>(fDphiHistArray[s1*72+s2]) | |
173 | ->Fill(TMath::ASin(tp1.GetSnp()) | |
174 | -TMath::ASin(tp2.GetSnp())); | |
175 | static_cast<TH1D*>(fDthetaHistArray[s1*72+s2]) | |
176 | ->Fill(TMath::ATan(tp1.GetTgl()) | |
177 | -TMath::ATan(tp2.GetTgl())); | |
178 | static_cast<TH1D*>(fDyHistArray[s1*72+s2]) | |
179 | ->Fill(tp1.GetY() | |
180 | -tp2.GetY()); | |
181 | static_cast<TH1D*>(fDzHistArray[s1*72+s2]) | |
182 | ->Fill(tp1.GetZ() | |
183 | -tp2.GetZ()); | |
184 | } | |
185 | return; | |
186 | ||
187 | ||
188 | ||
9318a5b4 | 189 | // |
190 | // Process function to fill fitters | |
191 | // | |
192 | Double_t t1[5],t2[5]; | |
193 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 194 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3]/*, &dzdx2=t2[4]*/; |
9318a5b4 | 195 | x1 =tp1.GetX(); |
196 | y1 =tp1.GetY(); | |
197 | z1 =tp1.GetZ(); | |
198 | Double_t snp1=tp1.GetSnp(); | |
199 | dydx1=snp1/TMath::Sqrt(1.-snp1*snp1); | |
200 | Double_t tgl1=tp1.GetTgl(); | |
201 | // dz/dx = 1/(cos(theta)*cos(phi)) | |
202 | dzdx1=1./TMath::Sqrt((1.+tgl1*tgl1)*(1.-snp1*snp1)); | |
203 | // x2 =tp1->GetX(); | |
204 | y2 =tp2.GetY(); | |
205 | z2 =tp2.GetZ(); | |
206 | Double_t snp2=tp2.GetSnp(); | |
207 | dydx2=snp2/TMath::Sqrt(1.-snp2*snp2); | |
208 | Double_t tgl2=tp2.GetTgl(); | |
209 | dzdx1=1./TMath::Sqrt((1.+tgl2*tgl2)*(1.-snp2*snp2)); | |
210 | ||
211 | Process12(t1,t2,GetOrMakeFitter12(s1,s2)); | |
212 | Process9(t1,t2,GetOrMakeFitter12(s1,s2)); | |
213 | Process6(t1,t2,GetOrMakeFitter12(s1,s2)); | |
214 | ++fPoints[72*s1+s2]; | |
215 | } | |
216 | ||
217 | void AliTPCcalibAlign::Process12(Double_t *t1, | |
218 | Double_t *t2, | |
219 | TLinearFitter *fitter) { | |
220 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
221 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
222 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
223 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
224 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
225 | // | |
226 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
227 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
228 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
229 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 230 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 231 | |
232 | // TODO: | |
233 | Double_t sy = 1.; | |
234 | Double_t sz = 1.; | |
235 | Double_t sdydx = 1.; | |
236 | Double_t sdzdx = 1.; | |
237 | ||
238 | Double_t p[12]; | |
239 | Double_t value; | |
240 | ||
241 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
242 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
243 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
244 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
245 | p[3+0] = x1; // a10 | |
246 | p[3+1] = y1; // a11 | |
247 | p[3+2] = z1; // a12 | |
248 | p[9+1] = 1.; // a13 | |
249 | p[0+1] = y1*dydx2; // a01 | |
250 | p[0+2] = z1*dydx2; // a02 | |
251 | p[9+0] = dydx2; // a03 | |
252 | value = y2; | |
253 | fitter->AddPoint(p,value,sy); | |
254 | ||
255 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
256 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
257 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2; | |
258 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
259 | p[6+0] = x1; // a20 | |
260 | p[6+1] = y1; // a21 | |
261 | p[6+2] = z1; // a22 | |
262 | p[9+2] = 1.; // a23 | |
263 | p[0+1] = y1*dzdx2; // a01 | |
264 | p[0+2] = z1*dzdx2; // a02 | |
265 | p[9+0] = dzdx2; // a03 | |
266 | value = z2; | |
267 | fitter->AddPoint(p,value,sz); | |
268 | ||
269 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
270 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
271 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
272 | p[3+0] = 1.; // a10 | |
273 | p[3+1] = dydx1; // a11 | |
274 | p[3+2] = dzdx1; // a12 | |
275 | p[0+0] = -dydx2; // a00 | |
276 | p[0+1] = -dydx1*dydx2; // a01 | |
277 | p[0+2] = -dzdx1*dydx2; // a02 | |
278 | value = 0.; | |
279 | fitter->AddPoint(p,value,sdydx); | |
280 | ||
281 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
282 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
283 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
284 | p[6+0] = 1; // a20 | |
285 | p[6+1] = dydx1; // a21 | |
286 | p[6+2] = dzdx1; // a22 | |
287 | p[0+0] = -dzdx2; // a00 | |
288 | p[0+1] = -dydx1*dzdx2; // a01 | |
289 | p[0+2] = -dzdx1*dzdx2; // a02 | |
290 | value = 0.; | |
291 | fitter->AddPoint(p,value,sdzdx); | |
292 | } | |
293 | ||
294 | void AliTPCcalibAlign::Process9(Double_t *t1, | |
295 | Double_t *t2, | |
296 | TLinearFitter *fitter) { | |
297 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
298 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
299 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
300 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
301 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
302 | // | |
303 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
304 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
305 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
306 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 307 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 308 | |
309 | // TODO: | |
310 | Double_t sy = 1.; | |
311 | Double_t sz = 1.; | |
312 | Double_t sdydx = 1.; | |
313 | Double_t sdzdx = 1.; | |
314 | ||
315 | Double_t p[12]; | |
316 | Double_t value; | |
317 | ||
318 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
319 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
320 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a03)*dydx2 | |
321 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
322 | p[3+0] = x1; | |
323 | p[3+1] = y1; | |
324 | p[3+2] = z1; | |
325 | p[9+1] = 1.; | |
326 | p[0+1] = y1*dydx2; | |
327 | p[0+2] = z1*dydx2; | |
328 | p[9+0] = dydx2; | |
329 | value = y2; | |
330 | fitter->AddPoint(p,value,sy); | |
331 | ||
332 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
333 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
334 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a03)*dzdx2; | |
335 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
336 | p[6+0] = x1; | |
337 | p[6+1] = y1; | |
338 | p[6+2] = z1; | |
339 | p[9+2] = 1.; | |
340 | p[0+1] = y1*dzdx2; | |
341 | p[0+2] = z1*dzdx2; | |
342 | p[9+0] = dzdx2; | |
343 | value = z2; | |
344 | fitter->AddPoint(p,value,sz); | |
345 | ||
346 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
347 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
348 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
349 | p[3+0] = 1.; | |
350 | p[3+1] = dydx1; | |
351 | p[3+2] = dzdx1; | |
352 | p[0+0] = -dydx2; | |
353 | p[0+1] = -dydx1*dydx2; | |
354 | p[0+2] = -dzdx1*dydx2; | |
355 | value = 0.; | |
356 | fitter->AddPoint(p,value,sdydx); | |
357 | ||
358 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
359 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
360 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
361 | p[6+0] = 1; | |
362 | p[6+1] = dydx1; | |
363 | p[6+2] = dzdx1; | |
364 | p[0+0] = -dzdx2; | |
365 | p[0+1] = -dydx1*dzdx2; | |
366 | p[0+2] = -dzdx1*dzdx2; | |
367 | value = 0.; | |
368 | fitter->AddPoint(p,value,sdzdx); | |
369 | } | |
370 | ||
371 | void AliTPCcalibAlign::Process6(Double_t *t1, | |
372 | Double_t *t2, | |
373 | TLinearFitter *fitter) { | |
374 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
375 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
376 | // z2 = a20*x1 + a21*y1 + 1 *z1 +a23 | |
377 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
378 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
379 | // | |
380 | // 1 -a01 0 a03 x -p[0] x p[3] | |
381 | // a10 1 0 a13 ==> p[0] x x p[4] | |
382 | // a20 a21 1 a23 p[1] p[2] x p[5] | |
383 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
cec17745 | 384 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; |
9318a5b4 | 385 | |
386 | // TODO: | |
387 | Double_t sy = 1.; | |
388 | Double_t sz = 1.; | |
389 | Double_t sdydx = 1.; | |
390 | Double_t sdzdx = 1.; | |
391 | ||
392 | Double_t p[12]; | |
393 | Double_t value; | |
394 | ||
395 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
396 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
397 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
398 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
399 | p[3+0] = x1; | |
400 | p[3+1] = y1; | |
401 | p[3+2] = z1; | |
402 | p[9+1] = 1.; | |
403 | p[0+1] = y1*dydx2; | |
404 | p[0+2] = z1*dydx2; | |
405 | p[9+0] = dydx2; | |
406 | value = y2; | |
407 | fitter->AddPoint(p,value,sy); | |
408 | ||
409 | // x2 = 1 *x1 +-a01*y1 + 0 + a03 | |
410 | // z2 = a20*x1 + a21*y1 + 1 *z1 + a23 | |
411 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 +a03)*dzdx2; | |
412 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
413 | p[6+0] = x1; | |
414 | p[6+1] = y1; | |
415 | p[6+2] = z1; | |
416 | p[9+2] = 1.; | |
417 | p[0+1] = y1*dzdx2; | |
418 | p[0+2] = z1*dzdx2; | |
419 | p[9+0] = dzdx2; | |
420 | value = z2; | |
421 | fitter->AddPoint(p,value,sz); | |
422 | ||
423 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
424 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
425 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
426 | p[3+0] = 1.; | |
427 | p[3+1] = dydx1; | |
428 | p[3+2] = dzdx1; | |
429 | p[0+0] = -dydx2; | |
430 | p[0+1] = -dydx1*dydx2; | |
431 | p[0+2] = -dzdx1*dydx2; | |
432 | value = 0.; | |
433 | fitter->AddPoint(p,value,sdydx); | |
434 | ||
435 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
436 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
437 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
438 | p[6+0] = 1; | |
439 | p[6+1] = dydx1; | |
440 | p[6+2] = dzdx1; | |
441 | p[0+0] = -dzdx2; | |
442 | p[0+1] = -dydx1*dzdx2; | |
443 | p[0+2] = -dzdx1*dzdx2; | |
444 | value = 0.; | |
445 | fitter->AddPoint(p,value,sdzdx); | |
446 | } | |
447 | ||
448 | void AliTPCcalibAlign::Eval() { | |
449 | TLinearFitter *f; | |
450 | for (Int_t s1=0;s1<72;++s1) | |
451 | for (Int_t s2=0;s2<72;++s2) | |
452 | if ((f=GetFitter12(s1,s2))&&fPoints[72*s1+s2]>12) { | |
453 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
454 | if (!f->Eval()) { | |
455 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
456 | } | |
457 | } | |
458 | /* | |
459 | ||
460 | fitter->Eval(); | |
461 | fitter->Eval(); | |
462 | chi212 = align->GetChisquare()/(4.*entries); | |
463 | ||
464 | TMatrixD mat(13,13); | |
465 | TVectorD par(13); | |
466 | align->GetParameters(par); | |
467 | align->GetCovarianceMatrix(mat); | |
468 | ||
469 | // | |
470 | // | |
471 | for (Int_t i=0; i<12;i++){ | |
472 | palign12(i)= par(i+1); | |
473 | for (Int_t j=0; j<12;j++){ | |
474 | pcovar12(i,j) = mat(i+1,j+1); | |
475 | pcovar12(i,j) *= chi212; | |
476 | } | |
477 | } | |
478 | // | |
479 | for (Int_t i=0; i<12;i++){ | |
480 | psigma12(i) = TMath::Sqrt(pcovar12(i,i)); | |
481 | palignR12(i) = palign12(i)/TMath::Sqrt(pcovar12(i,i)); | |
482 | for (Int_t j=0; j<12;j++){ | |
483 | pcovarN12(i,j) = pcovar12(i,j)/TMath::Sqrt(pcovar12(i,i)*pcovar12(j,j)); | |
484 | } | |
485 | } | |
486 | */ | |
487 | } | |
488 | ||
489 | Bool_t AliTPCcalibAlign::GetTransformation12(Int_t s1,Int_t s2,TMatrixD &a) { | |
490 | if (!GetFitter12(s1,s2)) | |
491 | return false; | |
492 | else { | |
493 | TVectorD p(12); | |
494 | cerr<<"foo"<<endl; | |
495 | GetFitter12(s1,s2)->GetParameters(p); | |
496 | cerr<<"bar"<<endl; | |
497 | a.ResizeTo(4,4); | |
498 | a[0][0]=p[0]; | |
499 | a[0][1]=p[1]; | |
500 | a[0][2]=p[2]; | |
501 | a[0][3]=p[9]; | |
502 | a[1][0]=p[3]; | |
503 | a[1][1]=p[4]; | |
504 | a[1][2]=p[5]; | |
505 | a[1][3]=p[10]; | |
506 | a[2][0]=p[6]; | |
507 | a[2][1]=p[7]; | |
508 | a[2][2]=p[8]; | |
509 | a[2][3]=p[11]; | |
510 | a[3][0]=0.; | |
511 | a[3][1]=0.; | |
512 | a[3][2]=0.; | |
513 | a[3][3]=1.; | |
514 | return true; | |
515 | } | |
516 | } | |
517 | ||
518 | Bool_t AliTPCcalibAlign::GetTransformation9(Int_t s1,Int_t s2,TMatrixD &a) { | |
519 | if (!GetFitter9(s1,s2)) | |
520 | return false; | |
521 | else { | |
522 | TVectorD p(9); | |
523 | GetFitter9(s1,s2)->GetParameters(p); | |
524 | a.ResizeTo(4,4); | |
525 | a[0][0]=p[0]; | |
526 | a[0][1]=p[1]; | |
527 | a[0][2]=p[2]; | |
528 | a[0][3]=p[9]; | |
529 | a[1][0]=p[3]; | |
530 | a[1][1]=p[4]; | |
531 | a[1][2]=p[5]; | |
532 | a[1][3]=p[10]; | |
533 | a[2][0]=p[6]; | |
534 | a[2][1]=p[7]; | |
535 | a[2][2]=p[8]; | |
536 | a[2][3]=p[11]; | |
537 | a[3][0]=0.; | |
538 | a[3][1]=0.; | |
539 | a[3][2]=0.; | |
540 | a[3][3]=1.; | |
541 | return true; | |
542 | } | |
543 | } | |
544 | ||
545 | Bool_t AliTPCcalibAlign::GetTransformation6(Int_t s1,Int_t s2,TMatrixD &a) { | |
546 | if (!GetFitter6(s1,s2)) | |
547 | return false; | |
548 | else { | |
549 | TVectorD p(6); | |
550 | cerr<<"foo"<<endl; | |
551 | GetFitter6(s1,s2)->GetParameters(p); | |
552 | cerr<<"bar"<<endl; | |
553 | a.ResizeTo(4,4); | |
554 | a[0][0]=p[0]; | |
555 | a[0][1]=p[1]; | |
556 | a[0][2]=p[2]; | |
557 | a[0][3]=p[9]; | |
558 | a[1][0]=p[3]; | |
559 | a[1][1]=p[4]; | |
560 | a[1][2]=p[5]; | |
561 | a[1][3]=p[10]; | |
562 | a[2][0]=p[6]; | |
563 | a[2][1]=p[7]; | |
564 | a[2][2]=p[8]; | |
565 | a[2][3]=p[11]; | |
566 | a[3][0]=0.; | |
567 | a[3][1]=0.; | |
568 | a[3][2]=0.; | |
569 | a[3][3]=1.; | |
570 | return true; | |
571 | } | |
572 | } |