Do not use mean vertex constraint (Andrea)
[u/mrichter/AliRoot.git] / TPC / AliTPCcalibAlign.cxx
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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
f8a2dcfb 22
972cf6f2 23// 12 parameters - arbitrary linear transformation
f8a2dcfb 24// a00 a01 a02 a03 p[0] p[1] p[2] p[9]
25// a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10]
26// a20 a21 a22 a23 p[6] p[7] p[8] p[11]
27//
9318a5b4 28// 9 parameters - scaling fixed to 1
f8a2dcfb 29// a00 a01 a02 a03 1 p[0] p[1] p[6]
30// a10 a11 a12 a13 ==> p[2] 1 p[3] p[7]
31// a20 a21 a22 a23 p[4] p[5] 1 p[8]
32//
972cf6f2 33// 6 parameters - x-y rotation x-z, y-z tiliting
f8a2dcfb 34// a00 a01 a02 a03 1 -p[0] 0 p[3]
35// a10 a11 a12 a13 ==> p[0] 1 0 p[4]
36// a20 a21 a22 a23 p[1] p[2] 1 p[5]
37//
9318a5b4 38////
39////
40
41#include "TLinearFitter.h"
42#include "AliTPCcalibAlign.h"
43#include "AliExternalTrackParam.h"
e4042305 44#include "AliTPCTracklet.h"
45#include "TH1D.h"
7eaa723e 46#include "TVectorD.h"
e149f26d 47#include "TTreeStream.h"
7eaa723e 48#include "TFile.h"
e81dc112 49#include "TF1.h"
9318a5b4 50
51#include <iostream>
e4042305 52#include <sstream>
9318a5b4 53using namespace std;
54
55ClassImp(AliTPCcalibAlign)
56
57AliTPCcalibAlign::AliTPCcalibAlign()
e4042305 58 : fDphiHistArray(72*72),
59 fDthetaHistArray(72*72),
60 fDyHistArray(72*72),
61 fDzHistArray(72*72),
62 fFitterArray12(72*72),
63 fFitterArray9(72*72),
64 fFitterArray6(72*72)
9318a5b4 65{
66 //
67 // Constructor
68 //
69 for (Int_t i=0;i<72*72;++i) {
70 fPoints[i]=0;
71 }
72}
73
e149f26d 74AliTPCcalibAlign::AliTPCcalibAlign(const Text_t *name, const Text_t *title)
75 :AliTPCcalibBase(),
76 fDphiHistArray(72*72),
77 fDthetaHistArray(72*72),
78 fDyHistArray(72*72),
79 fDzHistArray(72*72),
80 fFitterArray12(72*72),
81 fFitterArray9(72*72),
82 fFitterArray6(72*72)
83{
84 //
85 // Constructor
86 //
87 SetName(name);
88 SetTitle(title);
89 for (Int_t i=0;i<72*72;++i) {
90 fPoints[i]=0;
91 }
92}
93
9318a5b4 94AliTPCcalibAlign::~AliTPCcalibAlign() {
95 //
96 // destructor
97 //
98}
99
e4042305 100void AliTPCcalibAlign::Process(AliTPCseed *seed) {
101 TObjArray tracklets=
102 AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kKalman,
103 kFALSE,20,2);
cbc19295 104 // TObjArray trackletsL=
105// AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kLinear,
106// kFALSE,20,2);
107// TObjArray trackletsQ=
108// AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kQuadratic,
109// kFALSE,20,2);
110// TObjArray trackletsR=
111// AliTPCTracklet::CreateTracklets(seed,AliTPCTracklet::kRiemann,
112// kFALSE,20,2);
e4042305 113 tracklets.SetOwner();
cbc19295 114 // trackletsL.SetOwner();
115// trackletsQ.SetOwner();
116// trackletsR.SetOwner();
e4042305 117 if (tracklets.GetEntries()==2) {
118 AliTPCTracklet *t1=static_cast<AliTPCTracklet*>(tracklets[0]);
119 AliTPCTracklet *t2=static_cast<AliTPCTracklet*>(tracklets[1]);
120 if (t1->GetSector()>t2->GetSector()) {
121 AliTPCTracklet* tmp=t1;
122 t1=t2;
123 t2=tmp;
124 }
125 AliExternalTrackParam *common1=0,*common2=0;
126 if (AliTPCTracklet::PropagateToMeanX(*t1,*t2,common1,common2))
127 ProcessTracklets(*common1,*common2,t1->GetSector(),t2->GetSector());
128 delete common1;
129 delete common2;
130 }
cbc19295 131
e4042305 132}
133
7eaa723e 134void AliTPCcalibAlign::Analyze(){
135 //
136 // Analyze function
137 //
138 EvalFitters();
139}
140
141
142void AliTPCcalibAlign::Terminate(){
143 //
144 // Terminate function
145 // call base terminate + Eval of fitters
146 //
147 if (GetDebugLevel()>0) Info("AliTPCcalibAlign","Teminate");
148 EvalFitters();
149 AliTPCcalibBase::Terminate();
150}
151
152
153
154
e4042305 155void AliTPCcalibAlign::ProcessTracklets(const AliExternalTrackParam &tp1,
156 const AliExternalTrackParam &tp2,
157 Int_t s1,Int_t s2) {
158
972cf6f2 159 //
160 //
161 //
162 FillHisto(tp1,tp2,s1,s2);
9318a5b4 163 //
164 // Process function to fill fitters
165 //
166 Double_t t1[5],t2[5];
167 Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4];
7eaa723e 168 Double_t &x2=t2[0], &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4];
9318a5b4 169 x1 =tp1.GetX();
170 y1 =tp1.GetY();
171 z1 =tp1.GetZ();
172 Double_t snp1=tp1.GetSnp();
173 dydx1=snp1/TMath::Sqrt(1.-snp1*snp1);
174 Double_t tgl1=tp1.GetTgl();
175 // dz/dx = 1/(cos(theta)*cos(phi))
7eaa723e 176 dzdx1=tgl1/TMath::Sqrt(1.-snp1*snp1);
177 x2 =tp2.GetX();
9318a5b4 178 y2 =tp2.GetY();
179 z2 =tp2.GetZ();
180 Double_t snp2=tp2.GetSnp();
181 dydx2=snp2/TMath::Sqrt(1.-snp2*snp2);
182 Double_t tgl2=tp2.GetTgl();
7eaa723e 183 dzdx2=tgl2/TMath::Sqrt(1.-snp2*snp2);
7eaa723e 184 //
185 //
186 //
187 if (fStreamLevel>1){
188 TTreeSRedirector *cstream = GetDebugStreamer();
189 if (cstream){
190 static TVectorD vec1(5);
191 static TVectorD vec2(5);
192 vec1.SetElements(t1);
193 vec2.SetElements(t2);
194 AliExternalTrackParam *p1 = &((AliExternalTrackParam&)tp1);
195 AliExternalTrackParam *p2 = &((AliExternalTrackParam&)tp2);
196 (*cstream)<<"Tracklet"<<
197 "tp1.="<<p1<<
198 "tp2.="<<p2<<
199 "v1.="<<&vec1<<
200 "v2.="<<&vec2<<
201 "s1="<<s1<<
202 "s2="<<s2<<
203 "\n";
204 }
205 }
9318a5b4 206 Process12(t1,t2,GetOrMakeFitter12(s1,s2));
7eaa723e 207 Process9(t1,t2,GetOrMakeFitter9(s1,s2));
208 Process6(t1,t2,GetOrMakeFitter6(s1,s2));
e81dc112 209 ++fPoints[GetIndex(s1,s2)];
9318a5b4 210}
211
7eaa723e 212void AliTPCcalibAlign::Process12(const Double_t *t1,
213 const Double_t *t2,
9318a5b4 214 TLinearFitter *fitter) {
215 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
216 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
217 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
218 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
219 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
220 //
f8a2dcfb 221 // a00 a01 a02 a03 p[0] p[1] p[2] p[9]
222 // a10 a11 a12 a13 ==> p[3] p[4] p[5] p[10]
223 // a20 a21 a22 a23 p[6] p[7] p[8] p[11]
224
225
226
7eaa723e 227 const Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4];
228 const Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4];
9318a5b4 229
230 // TODO:
7eaa723e 231 Double_t sy = 0.1;
232 Double_t sz = 0.1;
233 Double_t sdydx = 0.001;
234 Double_t sdzdx = 0.001;
9318a5b4 235
236 Double_t p[12];
237 Double_t value;
238
239 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
240 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
241 // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2
242 for (Int_t i=0; i<12;i++) p[i]=0.;
243 p[3+0] = x1; // a10
244 p[3+1] = y1; // a11
245 p[3+2] = z1; // a12
246 p[9+1] = 1.; // a13
247 p[0+1] = y1*dydx2; // a01
248 p[0+2] = z1*dydx2; // a02
249 p[9+0] = dydx2; // a03
250 value = y2;
251 fitter->AddPoint(p,value,sy);
252
253 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
254 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
255 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
256 for (Int_t i=0; i<12;i++) p[i]=0.;
257 p[6+0] = x1; // a20
258 p[6+1] = y1; // a21
259 p[6+2] = z1; // a22
260 p[9+2] = 1.; // a23
261 p[0+1] = y1*dzdx2; // a01
262 p[0+2] = z1*dzdx2; // a02
263 p[9+0] = dzdx2; // a03
264 value = z2;
265 fitter->AddPoint(p,value,sz);
266
267 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
268 // (a10 + a11*dydx1 + a12*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dydx2 = 0
269 for (Int_t i=0; i<12;i++) p[i]=0.;
270 p[3+0] = 1.; // a10
271 p[3+1] = dydx1; // a11
272 p[3+2] = dzdx1; // a12
273 p[0+0] = -dydx2; // a00
274 p[0+1] = -dydx1*dydx2; // a01
275 p[0+2] = -dzdx1*dydx2; // a02
276 value = 0.;
277 fitter->AddPoint(p,value,sdydx);
278
279 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/( a00 + a01*dydx1 + a02*dzdx1)
280 // (a20 + a21*dydx1 + a22*dzdx1) - (a00 + a01*dydx1 + a02*dzdx1)*dzdx2 = 0
281 for (Int_t i=0; i<12;i++) p[i]=0.;
282 p[6+0] = 1; // a20
283 p[6+1] = dydx1; // a21
284 p[6+2] = dzdx1; // a22
285 p[0+0] = -dzdx2; // a00
286 p[0+1] = -dydx1*dzdx2; // a01
287 p[0+2] = -dzdx1*dzdx2; // a02
288 value = 0.;
289 fitter->AddPoint(p,value,sdzdx);
290}
291
292void AliTPCcalibAlign::Process9(Double_t *t1,
293 Double_t *t2,
294 TLinearFitter *fitter) {
295 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
296 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
297 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
298 // dydx2 = (a10 + a11*dydx1 + a12*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
299 // dzdx2 = (a20 + a21*dydx1 + a22*dzdx1)/(a00 + a01*dydx1 + a02*dzdx1)
300 //
f8a2dcfb 301 // a00 a01 a02 a03 1 p[0] p[1] p[6]
302 // a10 a11 a12 a13 ==> p[2] 1 p[3] p[7]
303 // a20 a21 a21 a23 p[4] p[5] 1 p[8]
304
305
9318a5b4 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:
f8a2dcfb 310 Double_t sy = 0.1;
311 Double_t sz = 0.1;
312 Double_t sdydx = 0.001;
313 Double_t sdzdx = 0.001;
314 //
9318a5b4 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
f8a2dcfb 320 // y2' = a10*x1 + a11*y1 + a12*z1 + a13 + (a01*y1 + a02*z1 + a03)*dydx2
9318a5b4 321 for (Int_t i=0; i<12;i++) p[i]=0.;
f8a2dcfb 322 p[2] += x1; // a10
323 //p[] +=1; // a11
324 p[3] += z1; // a12
325 p[7] += 1; // a13
326 p[0] += y1*dydx2; // a01
327 p[1] += z1*dydx2; // a02
328 p[6] += dydx2; // a03
329 value = y2-y1; //-a11
9318a5b4 330 fitter->AddPoint(p,value,sy);
f8a2dcfb 331 //
9318a5b4 332 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
333 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
f8a2dcfb 334 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
9318a5b4 335 for (Int_t i=0; i<12;i++) p[i]=0.;
f8a2dcfb 336 p[4] += x1; // a20
337 p[5] += y1; // a21
338 //p[] += z1; // a22
339 p[8] += 1.; // a23
340 p[0] += y1*dzdx2; // a01
341 p[1] += z1*dzdx2; // a02
342 p[6] += dzdx2; // a03
343 value = z2-z1; //-a22
9318a5b4 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.;
f8a2dcfb 349 p[2] += 1.; // a10
350 //p[] += dydx1; // a11
351 p[3] += dzdx1; // a12
352 //p[] += -dydx2; // a00
353 p[0] += -dydx1*dydx2; // a01
354 p[1] += -dzdx1*dydx2; // a02
355 value = -dydx1+dydx2; // -a11 + a00
9318a5b4 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.;
f8a2dcfb 361 p[4] += 1; // a20
362 p[5] += dydx1; // a21
363 //p[] += dzdx1; // a22
364 //p[] += -dzdx2; // a00
365 p[0] += -dydx1*dzdx2; // a01
366 p[1] += -dzdx1*dzdx2; // a02
367 value = -dzdx1+dzdx2; // -a22 + a00
9318a5b4 368 fitter->AddPoint(p,value,sdzdx);
369}
370
371void 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 //
f8a2dcfb 380 // a00 a01 a02 a03 1 -p[0] 0 p[3]
381 // a10 a11 a12 a13 ==> p[0] 1 0 p[4]
382 // a20 a21 a21 a23 p[1] p[2] 1 p[5]
383
9318a5b4 384 Double_t &x1=t1[0], &y1=t1[1], &z1=t1[2], &dydx1=t1[3], &dzdx1=t1[4];
cec17745 385 Double_t /*&x2=t2[0],*/ &y2=t2[1], &z2=t2[2], &dydx2=t2[3], &dzdx2=t2[4];
9318a5b4 386
387 // TODO:
7eaa723e 388 Double_t sy = 0.1;
389 Double_t sz = 0.1;
390 Double_t sdydx = 0.001;
391 Double_t sdzdx = 0.001;
9318a5b4 392
393 Double_t p[12];
394 Double_t value;
f8a2dcfb 395 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
396 // y2 = a10*x1 + a11*y1 + a12*z1 + a13
9318a5b4 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.;
f8a2dcfb 399 p[0] += x1; // a10
400 //p[] +=1; // a11
401 //p[] += z1; // a12
402 p[4] += 1; // a13
403 p[0] += -y1*dydx2; // a01
404 //p[] += z1*dydx2; // a02
405 p[3] += dydx2; // a03
406 value = y2-y1; //-a11
9318a5b4 407 fitter->AddPoint(p,value,sy);
f8a2dcfb 408 //
409 // x2 = a00*x1 + a01*y1 + a02*z1 + a03
410 // z2 = a20*x1 + a21*y1 + a22*z1 + a23
411 // z2' = a20*x1 + a21*y1 + a22*z1 + a23 + (a01*y1 + a02*z1 + a03)*dzdx2;
9318a5b4 412 for (Int_t i=0; i<12;i++) p[i]=0.;
f8a2dcfb 413 p[1] += x1; // a20
414 p[2] += y1; // a21
415 //p[] += z1; // a22
416 p[5] += 1.; // a23
417 p[0] += -y1*dzdx2; // a01
418 //p[] += z1*dzdx2; // a02
419 p[3] += dzdx2; // a03
420 value = z2-z1; //-a22
9318a5b4 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.;
f8a2dcfb 426 p[0] += 1.; // a10
427 //p[] += dydx1; // a11
428 //p[] += dzdx1; // a12
429 //p[] += -dydx2; // a00
430 p[0] += dydx1*dydx2; // a01
431 //p[] += -dzdx1*dydx2; // a02
432 value = -dydx1+dydx2; // -a11 + a00
9318a5b4 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.;
f8a2dcfb 438 p[1] += 1; // a20
439 p[2] += dydx1; // a21
440 //p[] += dzdx1; // a22
441 //p[] += -dzdx2; // a00
442 p[0] += dydx1*dzdx2; // a01
443 //p[] += -dzdx1*dzdx2; // a02
444 value = -dzdx1+dzdx2; // -a22 + a00
9318a5b4 445 fitter->AddPoint(p,value,sdzdx);
446}
447
7eaa723e 448
449
450
451void AliTPCcalibAlign::EvalFitters() {
452 //
453 // Analyze function
454 //
455 // Perform the fitting using linear fitters
456 //
457 Int_t kMinPoints =50;
9318a5b4 458 TLinearFitter *f;
7eaa723e 459 TFile fff("alignDebug.root","recreate");
9318a5b4 460 for (Int_t s1=0;s1<72;++s1)
7eaa723e 461 for (Int_t s2=0;s2<72;++s2){
e81dc112 462 if ((f=GetFitter12(s1,s2))&&fPoints[GetIndex(s1,s2)]>kMinPoints) {
463 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
0ebabeb6 464 if (f->Eval()!=0) {
9318a5b4 465 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
7eaa723e 466 f->Write(Form("f12_%d_%d",s1,s2));
467 }else{
468 f->Write(Form("f12_%d_%d",s1,s2));
9318a5b4 469 }
470 }
e81dc112 471 if ((f=GetFitter9(s1,s2))&&fPoints[GetIndex(s1,s2)]>kMinPoints) {
472 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
0ebabeb6 473 if (f->Eval()!=0) {
7eaa723e 474 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
475 }else{
476 f->Write(Form("f9_%d_%d",s1,s2));
477 }
478 }
e81dc112 479 if ((f=GetFitter6(s1,s2))&&fPoints[GetIndex(s1,s2)]>kMinPoints) {
480 // cerr<<s1<<","<<s2<<": "<<fPoints[GetIndex(s1,s2)]<<endl;
972cf6f2 481 if (f->Eval()!=0) {
7eaa723e 482 cerr<<"Evaluation failed for "<<s1<<","<<s2<<endl;
483 }else{
484 f->Write(Form("f6_%d_%d",s1,s2));
485 }
486 }
487 }
0ebabeb6 488 this->Write("align");
9318a5b4 489 /*
490
491 fitter->Eval();
492 fitter->Eval();
493 chi212 = align->GetChisquare()/(4.*entries);
494
495 TMatrixD mat(13,13);
496 TVectorD par(13);
497 align->GetParameters(par);
498 align->GetCovarianceMatrix(mat);
499
500 //
501 //
502 for (Int_t i=0; i<12;i++){
503 palign12(i)= par(i+1);
504 for (Int_t j=0; j<12;j++){
505 pcovar12(i,j) = mat(i+1,j+1);
506 pcovar12(i,j) *= chi212;
507 }
508 }
509 //
510 for (Int_t i=0; i<12;i++){
511 psigma12(i) = TMath::Sqrt(pcovar12(i,i));
512 palignR12(i) = palign12(i)/TMath::Sqrt(pcovar12(i,i));
513 for (Int_t j=0; j<12;j++){
514 pcovarN12(i,j) = pcovar12(i,j)/TMath::Sqrt(pcovar12(i,i)*pcovar12(j,j));
515 }
516 }
517 */
518}
519
972cf6f2 520TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter12(Int_t s1,Int_t s2) {
521 //
522 // get or make fitter - general linear transformation
523 //
e81dc112 524 static Int_t counter12=0;
525 static TF1 f12("f12","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]++x[9]++x[10]++x[11]");
972cf6f2 526 TLinearFitter * fitter = GetFitter12(s1,s2);
527 if (fitter) return fitter;
e81dc112 528 // 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]");
529 fitter =new TLinearFitter(&f12,"");
972cf6f2 530 fitter->StoreData(kFALSE);
e81dc112 531 fFitterArray12.AddAt(fitter,GetIndex(s1,s2));
532 counter12++;
533 if (GetDebugLevel()>0) cerr<<"Creating fitter12 "<<s1<<","<<s2<<" : "<<counter12<<endl;
972cf6f2 534 return fitter;
535}
536
537TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter9(Int_t s1,Int_t s2) {
538 //
539 //get or make fitter - general linear transformation - no scaling
540 //
e81dc112 541 static Int_t counter9=0;
542 static TF1 f9("f9","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]");
972cf6f2 543 TLinearFitter * fitter = GetFitter9(s1,s2);
544 if (fitter) return fitter;
e81dc112 545 // fitter =new TLinearFitter(9,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]++x[6]++x[7]++x[8]");
546 fitter =new TLinearFitter(&f9,"");
972cf6f2 547 fitter->StoreData(kFALSE);
548 fFitterArray9.AddAt(fitter,GetIndex(s1,s2));
e81dc112 549 counter9++;
550 if (GetDebugLevel()>0) cerr<<"Creating fitter12 "<<s1<<","<<s2<<" : "<<counter9<<endl;
972cf6f2 551 return fitter;
552}
553
554TLinearFitter* AliTPCcalibAlign::GetOrMakeFitter6(Int_t s1,Int_t s2) {
555 //
556 // get or make fitter - 6 paramater linear tranformation
557 // - no scaling
558 // - rotation x-y
559 // - tilting x-z, y-z
e81dc112 560 static Int_t counter6=0;
561 static TF1 f6("f6","x[0]++x[1]++x[2]++x[3]++x[4]++x[5]");
972cf6f2 562 TLinearFitter * fitter = GetFitter6(s1,s2);
563 if (fitter) return fitter;
e81dc112 564 // fitter=new TLinearFitter(6,"x[0]++x[1]++x[2]++x[3]++x[4]++x[5]");
565 fitter=new TLinearFitter(&f6,"");
972cf6f2 566 fitter->StoreData(kFALSE);
567 fFitterArray6.AddAt(fitter,GetIndex(s1,s2));
e81dc112 568 counter6++;
569 if (GetDebugLevel()>0) cerr<<"Creating fitter6 "<<s1<<","<<s2<<" : "<<counter6<<endl;
972cf6f2 570 return fitter;
571}
572
573
574
575
576
9318a5b4 577Bool_t AliTPCcalibAlign::GetTransformation12(Int_t s1,Int_t s2,TMatrixD &a) {
972cf6f2 578 //
579 // GetTransformation matrix - 12 paramaters - generael linear transformation
580 //
9318a5b4 581 if (!GetFitter12(s1,s2))
582 return false;
583 else {
584 TVectorD p(12);
9318a5b4 585 GetFitter12(s1,s2)->GetParameters(p);
9318a5b4 586 a.ResizeTo(4,4);
972cf6f2 587 a[0][0]=p[0]; a[0][1]=p[1]; a[0][2]=p[2]; a[0][3]=p[9];
588 a[1][0]=p[3]; a[1][1]=p[4]; a[1][2]=p[5]; a[1][3]=p[10];
589 a[2][0]=p[6]; a[2][1]=p[7]; a[2][2]=p[8]; a[2][3]=p[11];
590 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
9318a5b4 591 return true;
592 }
593}
594
595Bool_t AliTPCcalibAlign::GetTransformation9(Int_t s1,Int_t s2,TMatrixD &a) {
972cf6f2 596 //
597 // GetTransformation matrix - 9 paramaters - general linear transformation
598 // No scaling
599 //
9318a5b4 600 if (!GetFitter9(s1,s2))
601 return false;
602 else {
603 TVectorD p(9);
604 GetFitter9(s1,s2)->GetParameters(p);
605 a.ResizeTo(4,4);
f8a2dcfb 606 a[0][0]=1; a[0][1]=p[0]; a[0][2]=p[1]; a[0][3]=p[6];
607 a[1][0]=p[2]; a[1][1]=1; a[1][2]=p[3]; a[1][3]=p[7];
608 a[2][0]=p[4]; a[2][1]=p[5]; a[2][2]=1; a[2][3]=p[8];
972cf6f2 609 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
9318a5b4 610 return true;
611 }
612}
613
614Bool_t AliTPCcalibAlign::GetTransformation6(Int_t s1,Int_t s2,TMatrixD &a) {
972cf6f2 615 //
616 // GetTransformation matrix - 6 paramaters
617 // 3 translation
618 // 1 rotation -x-y
619 // 2 tilting x-z y-z
9318a5b4 620 if (!GetFitter6(s1,s2))
621 return false;
622 else {
623 TVectorD p(6);
9318a5b4 624 GetFitter6(s1,s2)->GetParameters(p);
9318a5b4 625 a.ResizeTo(4,4);
f8a2dcfb 626 a[0][0]=1; a[0][1]=-p[0];a[0][2]=0; a[0][3]=p[3];
627 a[1][0]=p[0]; a[1][1]=1; a[1][2]=0; a[1][3]=p[4];
628 a[2][0]=p[1]; a[2][1]=p[2]; a[2][2]=1; a[2][3]=p[5];
972cf6f2 629 a[3][0]=0.; a[3][1]=0.; a[3][2]=0.; a[3][3]=1.;
9318a5b4 630 return true;
631 }
632}
972cf6f2 633
634void AliTPCcalibAlign::FillHisto(const AliExternalTrackParam &tp1,
635 const AliExternalTrackParam &tp2,
636 Int_t s1,Int_t s2) {
637 //
638 // Fill residual histograms
639 //
640 if (s2-s1==36) {//only inner-outer
641 GetHisto(kPhi,s1,s2,kTRUE)->Fill(TMath::ASin(tp1.GetSnp())-TMath::ASin(tp2.GetSnp()));
642 GetHisto(kTheta,s1,s2,kTRUE)->Fill(TMath::ATan(tp1.GetTgl())-TMath::ATan(tp2.GetTgl()));
643 GetHisto(kY,s1,s2,kTRUE)->Fill(tp1.GetY()-tp2.GetY());
644 GetHisto(kZ,s1,s2,kTRUE)->Fill(tp1.GetZ()-tp2.GetZ());
645 }
646}
647
648
649
650TH1 * AliTPCcalibAlign::GetHisto(HistoType type, Int_t s1, Int_t s2, Bool_t force)
651{
652 //
653 // return specified residual histogram - it is only QA
654 // if force specified the histogram and given histogram is not existing
655 // new histogram is created
656 //
657 if (GetIndex(s1,s2)>=72*72) return 0;
658 TObjArray *histoArray=0;
659 switch (type) {
660 case kY:
661 histoArray = &fDyHistArray; break;
662 case kZ:
663 histoArray = &fDzHistArray; break;
664 case kPhi:
665 histoArray = &fDphiHistArray; break;
666 case kTheta:
667 histoArray = &fDthetaHistArray; break;
668 }
669 TH1 * histo= (TH1*)histoArray->At(GetIndex(s1,s2));
670 if (histo) return histo;
671 if (force==kFALSE) return 0;
672 //
673 stringstream name;
674 stringstream title;
675 switch (type) {
676 case kY:
677 name<<"hist_y_"<<s1<<"_"<<s2;
678 title<<"Y Missalignment for sectors "<<s1<<" and "<<s2;
679 histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm
680 break;
681 case kZ:
682 name<<"hist_z_"<<s1<<"_"<<s2;
683 title<<"Z Missalignment for sectors "<<s1<<" and "<<s2;
684 histo = new TH1D(name.str().c_str(),title.str().c_str(),512,-0.3,0.3); // +/- 3 mm
685 break;
686 case kPhi:
687 name<<"hist_phi_"<<s1<<"_"<<s2;
688 title<<"Phi Missalignment for sectors "<<s1<<" and "<<s2;
689 histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad
690 break;
691 case kTheta:
692 name<<"hist_theta_"<<s1<<"_"<<s2;
693 title<<"Theta Missalignment for sectors "<<s1<<" and "<<s2;
694 histo =new TH1D(name.str().c_str(),title.str().c_str(),512,-0.01,0.01); // +/- 10 mrad
695 break;
696 }
697 histo->SetDirectory(0);
698 histoArray->AddAt(histo,GetIndex(s1,s2));
699 return histo;
700}