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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 linear transformation | |
23 | // 9 parameters - scaling fixed to 1 | |
24 | // 6 parameters - x-y rotation x-z, y-z tiliting | |
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" | |
34 | #include "AliTPCTracklet.h" | |
35 | #include "TH1D.h" | |
36 | #include "TVectorD.h" | |
37 | #include "TTreeStream.h" | |
38 | #include "TFile.h" | |
39 | ||
40 | #include <iostream> | |
41 | #include <sstream> | |
42 | using namespace std; | |
43 | ||
44 | ClassImp(AliTPCcalibAlign) | |
45 | ||
46 | AliTPCcalibAlign::AliTPCcalibAlign() | |
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) | |
54 | { | |
55 | // | |
56 | // Constructor | |
57 | // | |
58 | for (Int_t i=0;i<72*72;++i) { | |
59 | fPoints[i]=0; | |
60 | } | |
61 | } | |
62 | ||
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 | ||
83 | AliTPCcalibAlign::~AliTPCcalibAlign() { | |
84 | // | |
85 | // destructor | |
86 | // | |
87 | } | |
88 | ||
89 | void AliTPCcalibAlign::Process(AliTPCseed *seed) { | |
90 | TObjArray tracklets= | |
91 | AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman, | |
92 | kFALSE,20,2); | |
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); | |
102 | tracklets.SetOwner(); | |
103 | // trackletsL.SetOwner(); | |
104 | // trackletsQ.SetOwner(); | |
105 | // trackletsR.SetOwner(); | |
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 | } | |
120 | ||
121 | } | |
122 | ||
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 | ||
144 | void AliTPCcalibAlign::ProcessTracklets(const AliExternalTrackParam &tp1, | |
145 | const AliExternalTrackParam &tp2, | |
146 | Int_t s1,Int_t s2) { | |
147 | ||
148 | // | |
149 | // | |
150 | // | |
151 | FillHisto(tp1,tp2,s1,s2); | |
152 | // | |
153 | // Process function to fill fitters | |
154 | // | |
155 | Double_t t1[5],t2[5]; | |
156 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
157 | Double_t &x2=t2[0], &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; | |
158 | x1 =tp1.GetX(); | |
159 | y1 =tp1.GetY(); | |
160 | z1 =tp1.GetZ(); | |
161 | Double_t snp1=tp1.GetSnp(); | |
162 | dydx1=snp1/TMath::Sqrt(1.-snp1*snp1); | |
163 | Double_t tgl1=tp1.GetTgl(); | |
164 | // dz/dx = 1/(cos(theta)*cos(phi)) | |
165 | dzdx1=tgl1/TMath::Sqrt(1.-snp1*snp1); | |
166 | x2 =tp2.GetX(); | |
167 | y2 =tp2.GetY(); | |
168 | z2 =tp2.GetZ(); | |
169 | Double_t snp2=tp2.GetSnp(); | |
170 | dydx2=snp2/TMath::Sqrt(1.-snp2*snp2); | |
171 | Double_t tgl2=tp2.GetTgl(); | |
172 | dzdx2=tgl2/TMath::Sqrt(1.-snp2*snp2); | |
173 | // | |
174 | // | |
175 | // | |
176 | if (fStreamLevel>1){ | |
177 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
178 | if (cstream){ | |
179 | static TVectorD vec1(5); | |
180 | static TVectorD vec2(5); | |
181 | vec1.SetElements(t1); | |
182 | vec2.SetElements(t2); | |
183 | AliExternalTrackParam *p1 = &((AliExternalTrackParam&)tp1); | |
184 | AliExternalTrackParam *p2 = &((AliExternalTrackParam&)tp2); | |
185 | (*cstream)<<"Tracklet"<< | |
186 | "tp1.="<<p1<< | |
187 | "tp2.="<<p2<< | |
188 | "v1.="<<&vec1<< | |
189 | "v2.="<<&vec2<< | |
190 | "s1="<<s1<< | |
191 | "s2="<<s2<< | |
192 | "\n"; | |
193 | } | |
194 | } | |
195 | Process12(t1,t2,GetOrMakeFitter12(s1,s2)); | |
196 | Process9(t1,t2,GetOrMakeFitter9(s1,s2)); | |
197 | Process6(t1,t2,GetOrMakeFitter6(s1,s2)); | |
198 | ++fPoints[72*s1+s2]; | |
199 | } | |
200 | ||
201 | void AliTPCcalibAlign::Process12(const Double_t *t1, | |
202 | const Double_t *t2, | |
203 | TLinearFitter *fitter) { | |
204 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
205 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
206 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
207 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
208 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
209 | // | |
210 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
211 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
212 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
213 | const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
214 | const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; | |
215 | ||
216 | // TODO: | |
217 | Double_t sy = 0.1; | |
218 | Double_t sz = 0.1; | |
219 | Double_t sdydx = 0.001; | |
220 | Double_t sdzdx = 0.001; | |
221 | ||
222 | Double_t p[12]; | |
223 | Double_t value; | |
224 | ||
225 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
226 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
227 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
228 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
229 | p[3+0] = x1; // a10 | |
230 | p[3+1] = y1; // a11 | |
231 | p[3+2] = z1; // a12 | |
232 | p[9+1] = 1.; // a13 | |
233 | p[0+1] = y1*dydx2; // a01 | |
234 | p[0+2] = z1*dydx2; // a02 | |
235 | p[9+0] = dydx2; // a03 | |
236 | value = y2; | |
237 | fitter->AddPoint(p,value,sy); | |
238 | ||
239 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
240 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
241 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2; | |
242 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
243 | p[6+0] = x1; // a20 | |
244 | p[6+1] = y1; // a21 | |
245 | p[6+2] = z1; // a22 | |
246 | p[9+2] = 1.; // a23 | |
247 | p[0+1] = y1*dzdx2; // a01 | |
248 | p[0+2] = z1*dzdx2; // a02 | |
249 | p[9+0] = dzdx2; // a03 | |
250 | value = z2; | |
251 | fitter->AddPoint(p,value,sz); | |
252 | ||
253 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
254 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
255 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
256 | p[3+0] = 1.; // a10 | |
257 | p[3+1] = dydx1; // a11 | |
258 | p[3+2] = dzdx1; // a12 | |
259 | p[0+0] = -dydx2; // a00 | |
260 | p[0+1] = -dydx1*dydx2; // a01 | |
261 | p[0+2] = -dzdx1*dydx2; // a02 | |
262 | value = 0.; | |
263 | fitter->AddPoint(p,value,sdydx); | |
264 | ||
265 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
266 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
267 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
268 | p[6+0] = 1; // a20 | |
269 | p[6+1] = dydx1; // a21 | |
270 | p[6+2] = dzdx1; // a22 | |
271 | p[0+0] = -dzdx2; // a00 | |
272 | p[0+1] = -dydx1*dzdx2; // a01 | |
273 | p[0+2] = -dzdx1*dzdx2; // a02 | |
274 | value = 0.; | |
275 | fitter->AddPoint(p,value,sdzdx); | |
276 | } | |
277 | ||
278 | void AliTPCcalibAlign::Process9(Double_t *t1, | |
279 | Double_t *t2, | |
280 | TLinearFitter *fitter) { | |
281 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
282 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
283 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
284 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
285 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
286 | // | |
287 | // a00 a01 a02 a03 p[0] p[1] p[2] p[9] | |
288 | // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10] | |
289 | // a20 a21 a22 a23 p[6] p[7] p[8] p[11] | |
290 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
291 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; | |
292 | ||
293 | // TODO: | |
294 | Double_t sy = 1.; | |
295 | Double_t sz = 1.; | |
296 | Double_t sdydx = 1.; | |
297 | Double_t sdzdx = 1.; | |
298 | ||
299 | Double_t p[12]; | |
300 | Double_t value; | |
301 | ||
302 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
303 | // y2 = a10*x1 + a11*y1 + a12*z1 + a13 | |
304 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a03)*dydx2 | |
305 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
306 | p[3+0] = x1; | |
307 | p[3+1] = y1; | |
308 | p[3+2] = z1; | |
309 | p[9+1] = 1.; | |
310 | p[0+1] = y1*dydx2; | |
311 | p[0+2] = z1*dydx2; | |
312 | p[9+0] = dydx2; | |
313 | value = y2; | |
314 | fitter->AddPoint(p,value,sy); | |
315 | ||
316 | // x2 = a00*x1 + a01*y1 + a02*z1 + a03 | |
317 | // z2 = a20*x1 + a21*y1 + a22*z1 + a23 | |
318 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a03)*dzdx2; | |
319 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
320 | p[6+0] = x1; | |
321 | p[6+1] = y1; | |
322 | p[6+2] = z1; | |
323 | p[9+2] = 1.; | |
324 | p[0+1] = y1*dzdx2; | |
325 | p[0+2] = z1*dzdx2; | |
326 | p[9+0] = dzdx2; | |
327 | value = z2; | |
328 | fitter->AddPoint(p,value,sz); | |
329 | ||
330 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
331 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
332 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
333 | p[3+0] = 1.; | |
334 | p[3+1] = dydx1; | |
335 | p[3+2] = dzdx1; | |
336 | p[0+0] = -dydx2; | |
337 | p[0+1] = -dydx1*dydx2; | |
338 | p[0+2] = -dzdx1*dydx2; | |
339 | value = 0.; | |
340 | fitter->AddPoint(p,value,sdydx); | |
341 | ||
342 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
343 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
344 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
345 | p[6+0] = 1; | |
346 | p[6+1] = dydx1; | |
347 | p[6+2] = dzdx1; | |
348 | p[0+0] = -dzdx2; | |
349 | p[0+1] = -dydx1*dzdx2; | |
350 | p[0+2] = -dzdx1*dzdx2; | |
351 | value = 0.; | |
352 | fitter->AddPoint(p,value,sdzdx); | |
353 | } | |
354 | ||
355 | void AliTPCcalibAlign::Process6(Double_t *t1, | |
356 | Double_t *t2, | |
357 | TLinearFitter *fitter) { | |
358 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
359 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
360 | // z2 = a20*x1 + a21*y1 + 1 *z1 +a23 | |
361 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
362 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1) | |
363 | // | |
364 | // 1 -a01 0 a03 x -p[0] x p[3] | |
365 | // a10 1 0 a13 ==> p[0] x x p[4] | |
366 | // a20 a21 1 a23 p[1] p[2] x p[5] | |
367 | Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4]; | |
368 | Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4]; | |
369 | ||
370 | // TODO: | |
371 | Double_t sy = 0.1; | |
372 | Double_t sz = 0.1; | |
373 | Double_t sdydx = 0.001; | |
374 | Double_t sdzdx = 0.001; | |
375 | ||
376 | Double_t p[12]; | |
377 | Double_t value; | |
378 | ||
379 | // x2 = 1 *x1 +-a01*y1 + 0 +a03 | |
380 | // y2 = a01*x1 + 1 *y1 + 0 +a13 | |
381 | // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2 | |
382 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
383 | p[3+0] = x1; | |
384 | p[3+1] = y1; | |
385 | p[3+2] = z1; | |
386 | p[9+1] = 1.; | |
387 | p[0+1] = y1*dydx2; | |
388 | p[0+2] = z1*dydx2; | |
389 | p[9+0] = dydx2; | |
390 | value = y2; | |
391 | fitter->AddPoint(p,value,sy); | |
392 | ||
393 | // x2 = 1 *x1 +-a01*y1 + 0 + a03 | |
394 | // z2 = a20*x1 + a21*y1 + 1 *z1 + a23 | |
395 | // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 +a03)*dzdx2; | |
396 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
397 | p[6+0] = x1; | |
398 | p[6+1] = y1; | |
399 | p[6+2] = z1; | |
400 | p[9+2] = 1.; | |
401 | p[0+1] = y1*dzdx2; | |
402 | p[0+2] = z1*dzdx2; | |
403 | p[9+0] = dzdx2; | |
404 | value = z2; | |
405 | fitter->AddPoint(p,value,sz); | |
406 | ||
407 | // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
408 | // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0 | |
409 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
410 | p[3+0] = 1.; | |
411 | p[3+1] = dydx1; | |
412 | p[3+2] = dzdx1; | |
413 | p[0+0] = -dydx2; | |
414 | p[0+1] = -dydx1*dydx2; | |
415 | p[0+2] = -dzdx1*dydx2; | |
416 | value = 0.; | |
417 | fitter->AddPoint(p,value,sdydx); | |
418 | ||
419 | // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1) | |
420 | // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0 | |
421 | for (Int_t i=0; i<12;i++) p[i]=0.; | |
422 | p[6+0] = 1; | |
423 | p[6+1] = dydx1; | |
424 | p[6+2] = dzdx1; | |
425 | p[0+0] = -dzdx2; | |
426 | p[0+1] = -dydx1*dzdx2; | |
427 | p[0+2] = -dzdx1*dzdx2; | |
428 | value = 0.; | |
429 | fitter->AddPoint(p,value,sdzdx); | |
430 | } | |
431 | ||
432 | ||
433 | ||
434 | ||
435 | void AliTPCcalibAlign::EvalFitters() { | |
436 | // | |
437 | // Analyze function | |
438 | // | |
439 | // Perform the fitting using linear fitters | |
440 | // | |
441 | Int_t kMinPoints =50; | |
442 | TLinearFitter *f; | |
443 | TFile fff("alignDebug.root","recreate"); | |
444 | for (Int_t s1=0;s1<72;++s1) | |
445 | for (Int_t s2=0;s2<72;++s2){ | |
446 | if ((f=GetFitter12(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { | |
447 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
448 | if (f->Eval()!=0) { | |
449 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
450 | f->Write(Form("f12_%d_%d",s1,s2)); | |
451 | }else{ | |
452 | f->Write(Form("f12_%d_%d",s1,s2)); | |
453 | } | |
454 | } | |
455 | if ((f=GetFitter9(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { | |
456 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
457 | if (f->Eval()!=0) { | |
458 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
459 | }else{ | |
460 | f->Write(Form("f9_%d_%d",s1,s2)); | |
461 | } | |
462 | } | |
463 | if ((f=GetFitter6(s1,s2))&&fPoints[72*s1+s2]>kMinPoints) { | |
464 | // cerr<<s1<<","<<s2<<": "<<fPoints[72*s1+s2]<<endl; | |
465 | if (f->Eval()!=0) { | |
466 | cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl; | |
467 | }else{ | |
468 | f->Write(Form("f6_%d_%d",s1,s2)); | |
469 | } | |
470 | } | |
471 | } | |
472 | this->Write("align"); | |
473 | /* | |
474 | ||
475 | fitter->Eval(); | |
476 | fitter->Eval(); | |
477 | chi212 = align->GetChisquare()/(4.*entries); | |
478 | ||
479 | TMatrixD mat(13,13); | |
480 | TVectorD par(13); | |
481 | align->GetParameters(par); | |
482 | align->GetCovarianceMatrix(mat); | |
483 | ||
484 | // | |
485 | // | |
486 | for (Int_t i=0; i<12;i++){ | |
487 | palign12(i)= par(i+1); | |
488 | for (Int_t j=0; j<12;j++){ | |
489 | pcovar12(i,j) = mat(i+1,j+1); | |
490 | pcovar12(i,j) *= chi212; | |
491 | } | |
492 | } | |
493 | // | |
494 | for (Int_t i=0; i<12;i++){ | |
495 | psigma12(i) = TMath::Sqrt(pcovar12(i,i)); | |
496 | palignR12(i) = palign12(i)/TMath::Sqrt(pcovar12(i,i)); | |
497 | for (Int_t j=0; j<12;j++){ | |
498 | pcovarN12(i,j) = pcovar12(i,j)/TMath::Sqrt(pcovar12(i,i)*pcovar12(j,j)); | |
499 | } | |
500 | } | |
501 | */ | |
502 | } | |
503 | ||
504 | TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter12(Int_t s1,Int_t s2) { | |
505 | // | |
506 | // get or make fitter - general linear transformation | |
507 | // | |
508 | TLinearFitter * fitter = GetFitter12(s1,s2); | |
509 | if (fitter) return fitter; | |
510 | fitter =new TLinearFitter(12,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]++x[9]++x[10]++x[11]"); | |
511 | fitter->StoreData(kFALSE); | |
512 | fFitterArray12.AddAt(fitter,GetIndex(s1,s2)); | |
513 | return fitter; | |
514 | } | |
515 | ||
516 | TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter9(Int_t s1,Int_t s2) { | |
517 | // | |
518 | //get or make fitter - general linear transformation - no scaling | |
519 | // | |
520 | TLinearFitter * fitter = GetFitter9(s1,s2); | |
521 | if (fitter) return fitter; | |
522 | fitter =new TLinearFitter(9,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]"); | |
523 | fitter->StoreData(kFALSE); | |
524 | fFitterArray9.AddAt(fitter,GetIndex(s1,s2)); | |
525 | return fitter; | |
526 | } | |
527 | ||
528 | TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter6(Int_t s1,Int_t s2) { | |
529 | // | |
530 | // get or make fitter - 6 paramater linear tranformation | |
531 | // - no scaling | |
532 | // - rotation x-y | |
533 | // - tilting x-z, y-z | |
534 | TLinearFitter * fitter = GetFitter6(s1,s2); | |
535 | if (fitter) return fitter; | |
536 | fitter=new TLinearFitter(6,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]"); | |
537 | fitter->StoreData(kFALSE); | |
538 | fFitterArray6.AddAt(fitter,GetIndex(s1,s2)); | |
539 | return fitter; | |
540 | } | |
541 | ||
542 | ||
543 | ||
544 | ||
545 | ||
546 | Bool_t AliTPCcalibAlign::GetTransformation12(Int_t s1,Int_t s2,TMatrixD &a) { | |
547 | // | |
548 | // GetTransformation matrix - 12 paramaters - generael linear transformation | |
549 | // | |
550 | if (!GetFitter12(s1,s2)) | |
551 | return false; | |
552 | else { | |
553 | TVectorD p(12); | |
554 | GetFitter12(s1,s2)->GetParameters(p); | |
555 | a.ResizeTo(4,4); | |
556 | a[0][0]=p[0]; a[0][1]=p[1]; a[0][2]=p[2]; a[0][3]=p[9]; | |
557 | a[1][0]=p[3]; a[1][1]=p[4]; a[1][2]=p[5]; a[1][3]=p[10]; | |
558 | a[2][0]=p[6]; a[2][1]=p[7]; a[2][2]=p[8]; a[2][3]=p[11]; | |
559 | a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.; | |
560 | return true; | |
561 | } | |
562 | } | |
563 | ||
564 | Bool_t AliTPCcalibAlign::GetTransformation9(Int_t s1,Int_t s2,TMatrixD &a) { | |
565 | // | |
566 | // GetTransformation matrix - 9 paramaters - general linear transformation | |
567 | // No scaling | |
568 | // | |
569 | if (!GetFitter9(s1,s2)) | |
570 | return false; | |
571 | else { | |
572 | TVectorD p(9); | |
573 | GetFitter9(s1,s2)->GetParameters(p); | |
574 | a.ResizeTo(4,4); | |
575 | a[0][0]=p[0]; a[0][1]=p[1]; a[0][2]=p[2]; a[0][3]=p[9]; | |
576 | a[1][0]=p[3]; a[1][1]=p[4]; a[1][2]=p[5]; a[1][3]=p[10]; | |
577 | a[2][0]=p[6]; a[2][1]=p[7]; a[2][2]=p[8]; a[2][3]=p[11]; | |
578 | a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.; | |
579 | return true; | |
580 | } | |
581 | } | |
582 | ||
583 | Bool_t AliTPCcalibAlign::GetTransformation6(Int_t s1,Int_t s2,TMatrixD &a) { | |
584 | // | |
585 | // GetTransformation matrix - 6 paramaters | |
586 | // 3 translation | |
587 | // 1 rotation -x-y | |
588 | // 2 tilting x-z y-z | |
589 | if (!GetFitter6(s1,s2)) | |
590 | return false; | |
591 | else { | |
592 | TVectorD p(6); | |
593 | GetFitter6(s1,s2)->GetParameters(p); | |
594 | a.ResizeTo(4,4); | |
595 | a[0][0]=p[0]; a[0][1]=p[1]; a[0][2]=p[2]; a[0][3]=p[9]; | |
596 | a[1][0]=p[3]; a[1][1]=p[4]; a[1][2]=p[5]; a[1][3]=p[10]; | |
597 | a[2][0]=p[6]; a[2][1]=p[7]; a[2][2]=p[8]; a[2][3]=p[11]; | |
598 | a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.; | |
599 | return true; | |
600 | } | |
601 | } | |
602 | ||
603 | void AliTPCcalibAlign::FillHisto(const AliExternalTrackParam &tp1, | |
604 | const AliExternalTrackParam &tp2, | |
605 | Int_t s1,Int_t s2) { | |
606 | // | |
607 | // Fill residual histograms | |
608 | // | |
609 | if (s2-s1==36) {//only inner-outer | |
610 | GetHisto(kPhi,s1,s2,kTRUE)->Fill(TMath::ASin(tp1.GetSnp())-TMath::ASin(tp2.GetSnp())); | |
611 | GetHisto(kTheta,s1,s2,kTRUE)->Fill(TMath::ATan(tp1.GetTgl())-TMath::ATan(tp2.GetTgl())); | |
612 | GetHisto(kY,s1,s2,kTRUE)->Fill(tp1.GetY()-tp2.GetY()); | |
613 | GetHisto(kZ,s1,s2,kTRUE)->Fill(tp1.GetZ()-tp2.GetZ()); | |
614 | } | |
615 | } | |
616 | ||
617 | ||
618 | ||
619 | TH1 * AliTPCcalibAlign::GetHisto(HistoType type, Int_t s1, Int_t s2, Bool_t force) | |
620 | { | |
621 | // | |
622 | // return specified residual histogram - it is only QA | |
623 | // if force specified the histogram and given histogram is not existing | |
624 | // new histogram is created | |
625 | // | |
626 | if (GetIndex(s1,s2)>=72*72) return 0; | |
627 | TObjArray *histoArray=0; | |
628 | switch (type) { | |
629 | case kY: | |
630 | histoArray = &fDyHistArray; break; | |
631 | case kZ: | |
632 | histoArray = &fDzHistArray; break; | |
633 | case kPhi: | |
634 | histoArray = &fDphiHistArray; break; | |
635 | case kTheta: | |
636 | histoArray = &fDthetaHistArray; break; | |
637 | } | |
638 | TH1 * histo= (TH1*)histoArray->At(GetIndex(s1,s2)); | |
639 | if (histo) return histo; | |
640 | if (force==kFALSE) return 0; | |
641 | // | |
642 | stringstream name; | |
643 | stringstream title; | |
644 | switch (type) { | |
645 | case kY: | |
646 | name<<"hist_y_"<<s1<<"_"<<s2; | |
647 | title<<"Y Missalignment for sectors "<<s1<<" and "<<s2; | |
648 | histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm | |
649 | break; | |
650 | case kZ: | |
651 | name<<"hist_z_"<<s1<<"_"<<s2; | |
652 | title<<"Z Missalignment for sectors "<<s1<<" and "<<s2; | |
653 | histo = new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm | |
654 | break; | |
655 | case kPhi: | |
656 | name<<"hist_phi_"<<s1<<"_"<<s2; | |
657 | title<<"Phi Missalignment for sectors "<<s1<<" and "<<s2; | |
658 | histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad | |
659 | break; | |
660 | case kTheta: | |
661 | name<<"hist_theta_"<<s1<<"_"<<s2; | |
662 | title<<"Theta Missalignment for sectors "<<s1<<" and "<<s2; | |
663 | histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad | |
664 | break; | |
665 | } | |
666 | histo->SetDirectory(0); | |
667 | histoArray->AddAt(histo,GetIndex(s1,s2)); | |
668 | return histo; | |
669 | } |