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b1f0a2a5 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// AliTPCCalibGlobalMisalignment class //
20// The class calculates the space point distortions due to simple //
21// misalignments like shifts in caresian coordinates or a rotation //
22// of the TPC read out planes (A and C side) //
be260e87 23// Optionaly possible to use it for visualization of the alignemnt form the Alignment OCDB //
24// fUseGeoManager has to be set to kTRUE to enable this option
b1f0a2a5 25// //
26// date: 06/05/2010 //
27// Authors: Stefan Rossegger, Jim Thomas, Magnus Mager //
28////////////////////////////////////////////////////////////////////////////
29
30#include "AliTPCCalibGlobalMisalignment.h"
31#include "TMath.h"
be260e87 32#include "TGeoMatrix.h"
33#include "AliTPCROC.h"
34#include "AliTPCcalibDB.h"
35#include "AliTPCParam.h"
36#include <TGeoPhysicalNode.h>
4e093f35 37//
38#include "AliAlignObjParams.h"
39#include "AliGeomManager.h"
40#include "AliCDBManager.h"
41#include "AliCDBEntry.h"
b1f0a2a5 42
43AliTPCCalibGlobalMisalignment::AliTPCCalibGlobalMisalignment()
44 : AliTPCCorrection("mialign","Misalignment"),
45 fXShift(0.),fYShift(0.),fZShift(0.),
46 fRotPhiA(0.),fRotPhiC(0.),
32b5322b 47 fdRPhiOffsetA(0.),
48 fdRPhiOffsetC(0.),
49 fQuadrantQ0(0), //OROC medium pads -delta ly+ - ly - shift
50 fQuadrantRQ0(0), //OROC medium pads -delta ly+ - ly - rotation
51 fQuadrantQ1(0), //OROC long pads -delta ly+ - ly - shift
52 fQuadrantQ2(0), //OROC long pads -shift
53 fQuadrantRQ1(0), //OROC long pads -delta ly+ - ly - rotation
54 fQuadrantRQ2(0), //OROC long pads -rotation
55 fMatrixGlobal(0), // global Alignment common
76c58ee2 56 fMatrixGlobalDelta(0), // global Alignment Delta A side-c side
32b5322b 57 fArraySector(0) // fArraySector
b1f0a2a5 58{
59 //
60 // default constructor
61 //
62}
63
64AliTPCCalibGlobalMisalignment::~AliTPCCalibGlobalMisalignment() {
65 //
32b5322b 66 // destructor
b1f0a2a5 67 //
32b5322b 68 delete fQuadrantQ0; //OROC medium pads -delta ly+ - ly - shift
69 delete fQuadrantRQ0; //OROC medium pads -delta ly+ - ly - rotation
70 delete fQuadrantQ1; //OROC long pads -delta ly+ - ly - shift
71 delete fQuadrantQ2; //OROC long pads -shift
72 delete fQuadrantRQ1; //OROC long pads -delta ly+ - ly - rotation
73 delete fQuadrantRQ2; //OROC long pads -rotation
74 delete fMatrixGlobal; // global matrix
76c58ee2 75 delete fMatrixGlobal; // global matrix
32b5322b 76 delete fArraySector; // sector matrices
be260e87 77}
78
32b5322b 79void AliTPCCalibGlobalMisalignment::SetQuadranAlign(const TVectorD *quadrantQ0, const TVectorD *quadrantRQ0, const TVectorD *quadrantQ1,const TVectorD *quadrantRQ1, const TVectorD *quadrantQ2, const TVectorD *quadrantRQ2){
be260e87 80 //
81 // Set quadrant alignment
32b5322b 82 // 6 vectors for 36 (super) sectors
83 //
84 if (quadrantQ0) fQuadrantQ0 = new TVectorD(*quadrantQ0);
85 if (quadrantRQ0) fQuadrantRQ0 = new TVectorD(*quadrantRQ0);
be260e87 86 //
32b5322b 87 if (quadrantQ1) fQuadrantQ1 = new TVectorD(*quadrantQ1);
88 if (quadrantQ1) fQuadrantRQ1 = new TVectorD(*quadrantRQ1);
89 if (quadrantQ2) fQuadrantQ2 = new TVectorD(*quadrantQ2);
90 if (quadrantQ2) fQuadrantRQ2 = new TVectorD(*quadrantRQ2);
b1f0a2a5 91}
92
32b5322b 93
94
4e093f35 95void AliTPCCalibGlobalMisalignment::SetAlignGlobal(const TGeoMatrix * matrixGlobal){
be260e87 96 //
4e093f35 97 // Set global misalignment
98 // Object is OWNER
be260e87 99 //
4e093f35 100 if (fMatrixGlobal) delete fMatrixGlobal;
101 fMatrixGlobal=0;
be260e87 102 if (matrixGlobal) fMatrixGlobal = new TGeoHMatrix(*matrixGlobal);
4e093f35 103}
104
76c58ee2 105void AliTPCCalibGlobalMisalignment::SetAlignGlobalDelta(const TGeoMatrix * matrixGlobalDelta){
106 //
107 // Set global misalignment
108 // Object is OWNER
109 //
110 if (fMatrixGlobalDelta) delete fMatrixGlobalDelta;
111 fMatrixGlobalDelta=0;
112 if (matrixGlobalDelta) fMatrixGlobalDelta = new TGeoHMatrix(*matrixGlobalDelta);
113}
114
4e093f35 115void AliTPCCalibGlobalMisalignment::SetAlignSectors(const TObjArray *arraySector){
116 //
117 // Set misalignment TObjArray of TGeoMatrices - for each sector
118 // Object is OWNER
119 //
120 if (fArraySector) delete fArraySector;
121 fArraySector=0;
122 if (arraySector) fArraySector = (TObjArray*)arraySector->Clone();
be260e87 123}
b1f0a2a5 124
125
126//void AliTPCCalibGlobalMisalignment::Init() {
127// //
128// // Initialization funtion
129// //
130
131// // nothing to be initialized, results of this calibration class will go to the global aligment structure
132
133//}
134
135//void AliTPCCalibGlobalMisalignment::Update(const TTimeStamp &/*timeStamp*/) {
136// //
137// // Update function
138// //
139//
140// // nothing to be updated, results of this calibration class will go to the global aligment structure
141//
142//}
143
144
145
146void AliTPCCalibGlobalMisalignment::GetCorrection(const Float_t x[],const Short_t roc,Float_t dx[]) {
147 //
148 // Calculates the simple correction due to a shift (in x,y,z) or an rotation of the TPC (around z)
be260e87 149 //
150 static AliTPCROC *tpcRoc =AliTPCROC::Instance();
32b5322b 151 Double_t xref = ( tpcRoc->GetPadRowRadii(0,0)+tpcRoc->GetPadRowRadii(36,tpcRoc->GetNRows(36)-1))*0.5;
76c58ee2 152 Double_t xquadrant = tpcRoc->GetPadRowRadii(36,53); // row 53 from uli
153 Double_t xIO = ( tpcRoc->GetPadRowRadii(0,tpcRoc->GetNRows(0)-1)+tpcRoc->GetPadRowRadii(36,0))*0.5;
be260e87 154 Double_t r=0, phi=0;
b1f0a2a5 155 r = TMath::Sqrt( x[0]*x[0] + x[1]*x[1] );
156 phi = TMath::ATan2(x[1],x[0]);
be260e87 157 // Getsector number
158 Double_t sec=TMath::Nint(-0.5+(phi*9./TMath::Pi()));
159 if (sec<0) sec+=18;
160 Int_t isec = TMath::Nint(sec);
161 if (roc%36>=18) isec+=18;
162 //
163 // Get the point on the local coordiante frame
164 //
165 Double_t alpha=(sec+0.5)*TMath::Pi()/9;
166 Double_t pos[3]={0,0,x[2]};
167 pos[0]= TMath::Cos(alpha)*x[0]+TMath::Sin(alpha)*x[1];
168 pos[1]= -TMath::Sin(alpha)*x[0]+TMath::Cos(alpha)*x[1];
169 if (pos[0]>tpcRoc->GetPadRowRadiiUp(0)) isec+=36;
b1f0a2a5 170
be260e87 171 //
172 // apply quadrant alignment if available - in local coordinate frame
173 //
32b5322b 174 //
be260e87 175 Double_t posQG[3]={x[0],x[1],x[2]};
32b5322b 176 {
be260e87 177 Double_t dly=0;
76c58ee2 178 Bool_t isQ0 = (pos[0]<xquadrant)&&(pos[0]>xIO);
179 Bool_t isQ1 = (pos[0]>xquadrant);
32b5322b 180 Double_t sign = (pos[1]>0)? 1.: -1.;
181 if (isQ0){
182 if (fQuadrantQ0) dly+=sign*(*fQuadrantQ0)[isec%36]; // shift in cm
183 if (fQuadrantRQ0) dly+=sign*(*fQuadrantRQ0)[isec%36]*(pos[0]-xref);
be260e87 184 }
32b5322b 185 if (isQ1){
186 if (fQuadrantQ1) dly+=sign*(*fQuadrantQ1)[isec%36]; // shift in cm
187 if (fQuadrantRQ1) dly+=sign*(*fQuadrantRQ1)[isec%36]*(pos[0]-xref);
188 if (fQuadrantQ2) dly+=(*fQuadrantQ2)[isec%36]; // shift in cm
189 if (fQuadrantRQ2) dly+=(*fQuadrantRQ2)[isec%36]*(pos[0]-xref);
be260e87 190 }
191 // Tranform the corrected point to the global frame
192 posQG[0]= TMath::Cos(alpha)*pos[0]-TMath::Sin(alpha)*(pos[1]+dly);
193 posQG[1]= TMath::Sin(alpha)*pos[0]+TMath::Cos(alpha)*(pos[1]+dly);
194 }
195 //
b1f0a2a5 196 // rotation of the read-out planes
197 if (roc%36<18) // A side
198 phi += fRotPhiA;
199 else // C side
200 phi += fRotPhiC;
be260e87 201
b1f0a2a5 202 // Simply adding a constant dRPHi residual. PURELY FOR CALIBRATION PURPOSES
203 if (roc%36<18) // A side
204 phi += fdRPhiOffsetA/r;
205 else // C side
206 phi += fdRPhiOffsetC/r;
be260e87 207
b1f0a2a5 208 dx[0] = r * TMath::Cos(phi) - x[0];
209 dx[1] = r * TMath::Sin(phi) - x[1];
210 dx[2] = 0.;
211
212 // Simple shifts
213 dx[0] -= fXShift;
214 dx[1] -= fYShift;
215 dx[2] -= fZShift;
be260e87 216 // quadrant shifts
217 dx[0] += (posQG[0]-x[0]);
218 dx[1] += (posQG[1]-x[1]);
219 //
be260e87 220 //
be260e87 221 if (fMatrixGlobal){
222 // apply global alignment matrix
223 Double_t ppos[3]={x[0],x[1],x[2]};
224 Double_t pposC[3]={x[0],x[1],x[2]};
225 fMatrixGlobal->LocalToMaster(ppos,pposC);
226 dx[0]+=pposC[0]-ppos[0];
227 dx[1]+=pposC[1]-ppos[1];
228 dx[2]+=pposC[2]-ppos[2];
229 }
76c58ee2 230 if (fMatrixGlobalDelta){
231 // apply global alignment matrix A-C Side side
232 Double_t ppos[3]={x[0],x[1],x[2]};
233 Double_t pposC[3]={x[0],x[1],x[2]};
234 fMatrixGlobalDelta->LocalToMaster(ppos,pposC);
235 Double_t ssign=(roc%36<18) ? 1.:-1.;
236 dx[0]+=ssign*(pposC[0]-ppos[0]);
237 dx[1]+=ssign*(pposC[1]-ppos[1]);
238 dx[2]+=ssign*(pposC[2]-ppos[2]);
239 }
be260e87 240
4e093f35 241 if (fArraySector){
be260e87 242 // apply global alignment matrix
4e093f35 243 TGeoMatrix *mat = (TGeoMatrix*)fArraySector->At(isec);
244 if (mat){
245 Double_t ppos[3]={x[0],x[1],x[2]};
246 Double_t pposC[3]={x[0],x[1],x[2]};
247 mat->LocalToMaster(ppos,pposC);
248 dx[0]+=pposC[0]-ppos[0];
249 dx[1]+=pposC[1]-ppos[1];
250 dx[2]+=pposC[2]-ppos[2];
251 }
be260e87 252 }
b1f0a2a5 253}
254
255void AliTPCCalibGlobalMisalignment::Print(Option_t* /*option*/ ) const {
256 //
257 // Print function to check the settings
258 //
259 printf("%s",GetTitle());
260 printf(" - Trivial Misalignments for calibration purposes: \n");
261 printf(" - X-Shift: %1.3f cm, Y-Shift: %1.3f cm, Z-Shift: %1.3f cm \n",fXShift,fYShift,fZShift);
262 printf(" - Phi-Rotations: A side: %1.5f rad, C side: %1.5f rad\n",fRotPhiA,fRotPhiC);
263 printf(" - dRPhi offsets: A side: %1.5f cm, C side: %1.5f cm\n",fdRPhiOffsetA,fdRPhiOffsetC);
264
265
266}
4e093f35 267
268void AliTPCCalibGlobalMisalignment::AddAlign(const AliTPCCalibGlobalMisalignment & add){
269 //
270 // Add the alignmnet to current object
271 //
272 fXShift+=add.fXShift; // Shift in global X [cm]
273 fYShift+=add.fYShift; // Shift in global Y [cm]
274 fZShift+=add.fZShift; // Shift in global Z [cm]
275
276 fRotPhiA+=add.fRotPhiA; // simple rotation of A side read-out plane around the Z axis [rad]
277 fRotPhiC+=add.fRotPhiC; // simple rotation of C side read-out plane around the Z axis [rad]
278 fdRPhiOffsetA+=add.fdRPhiOffsetA; // add a constant offset of dRPhi (or local Y) in [cm]: purely for calibration purposes!
279 fdRPhiOffsetC+=add.fdRPhiOffsetC; // add a constant offset of dRPhi (or local Y) in [cm]: purely for calibration purposes!
280 //
281 // Quadrant alignment
282 //
32b5322b 283 if (add.fQuadrantQ0) {
284 if (fQuadrantQ0) fQuadrantQ0->Add(*(add.fQuadrantQ0));
285 if (!fQuadrantQ0) fQuadrantQ0 = (TVectorD*)(add.fQuadrantQ0->Clone());
286 }
287 if (add.fQuadrantRQ0) {
288 if (fQuadrantRQ0) fQuadrantRQ0->Add(*(add.fQuadrantRQ0));
289 if (!fQuadrantRQ0) fQuadrantRQ0 = (TVectorD*)(add.fQuadrantRQ0->Clone());
290 }
291 //
292 if (add.fQuadrantQ1) {
293 if (fQuadrantQ1) fQuadrantQ1->Add(*(add.fQuadrantQ1));
294 if (!fQuadrantQ1) fQuadrantQ1 = (TVectorD*)(add.fQuadrantQ1->Clone());
295 }
296 if (add.fQuadrantRQ1) {
297 if (fQuadrantRQ1) fQuadrantRQ1->Add(*(add.fQuadrantRQ1));
298 if (!fQuadrantRQ1) fQuadrantRQ1 = (TVectorD*)(add.fQuadrantRQ1->Clone());
299 }
300 //
301 if (add.fQuadrantQ2) {
302 if (fQuadrantQ2) fQuadrantQ2->Add(*(add.fQuadrantQ2));
303 if (!fQuadrantQ2) fQuadrantQ2 = (TVectorD*)(add.fQuadrantQ2->Clone());
304 }
305 if (add.fQuadrantRQ2) {
306 if (fQuadrantRQ2) fQuadrantRQ2->Add(*(add.fQuadrantRQ2));
307 if (!fQuadrantRQ2) fQuadrantRQ2 = (TVectorD*)(add.fQuadrantRQ2->Clone());
308 }
4e093f35 309 //
310 // Global alignment - use native ROOT representation
311 //
312 if (add.fMatrixGlobal){
313 if (!fMatrixGlobal) fMatrixGlobal = new TGeoHMatrix(*(add.fMatrixGlobal));
314 if (fMatrixGlobal) ((TGeoHMatrix*)fMatrixGlobal)->Multiply(add.fMatrixGlobal);
315 }
316 if (add.fArraySector){
317 if (!fArraySector) {SetAlignSectors(add.fArraySector);
318 }else{
319 for (Int_t isec=0; isec<72; isec++){
320 TGeoHMatrix *mat0= (TGeoHMatrix*)fArraySector->At(isec);
321 TGeoHMatrix *mat1= (TGeoHMatrix*)add.fArraySector->At(isec);
322 if (mat0&&mat1) mat0->Multiply(mat1);
323 }
324 }
325 }
326}
327
328
329AliTPCCalibGlobalMisalignment * AliTPCCalibGlobalMisalignment::CreateOCDBAlign(){
330 //
331 // Create AliTPCCalibGlobalMisalignment from OCDB Alignment entry
332 // OCDB has to be initialized before in user code
333 // All storages (defualt and specific) and run number
334 //
335 AliCDBEntry * entry = AliCDBManager::Instance()->Get("TPC/Align/Data");
336 if (!entry){
337 printf("Missing alignmnet entry. OCDB not initialized?\n");
338 return 0;
339 }
340 TClonesArray * array = (TClonesArray*)entry->GetObject();
341 Int_t entries = array->GetEntries();
342 TGeoHMatrix matrixGlobal;
343 TObjArray *alignArrayOCDB= new TObjArray(73); // sector misalignment + global misalignment
344 // // global is number 72
345 //
346 { for (Int_t i=0;i<entries; i++){
347 //
348 //
349 TGeoHMatrix matrix;
350 AliAlignObjParams *alignP = (AliAlignObjParams*)array->UncheckedAt(i);
351 alignP->GetMatrix(matrix);
352 Int_t imod;
353 AliGeomManager::ELayerID ilayer;
354 alignP->GetVolUID(ilayer, imod);
355 if (ilayer==AliGeomManager::kInvalidLayer) {
356 alignArrayOCDB->AddAt(matrix.Clone(),72);
357 alignP->GetMatrix(matrixGlobal);
358 }else{
359 Int_t sector=imod;
360 if (ilayer==AliGeomManager::kTPC2) sector+=36;
361 alignArrayOCDB->AddAt(matrix.Clone(),sector);
362 }
363 }
364 }
365 AliTPCCalibGlobalMisalignment *align = new AliTPCCalibGlobalMisalignment;
366 align->SetAlignGlobal(&matrixGlobal);
367 align->SetAlignSectors(alignArrayOCDB);
368 return align;
369}
370
371
372AliTPCCalibGlobalMisalignment * AliTPCCalibGlobalMisalignment::CreateMeanAlign(const AliTPCCalibGlobalMisalignment *alignIn){
373 //
374 // Create new object, disantangle common mean alignmnet and sector alignment
375 //
376 // 1. Try to get mean alignment
377 // 2. Remove mean alignment from sector alignment
378 // 3. Create new object
379 //
380 TObjArray * array = alignIn->GetAlignSectors();
381 TObjArray * arrayNew = new TObjArray(72);
382 //
383 //Get mean transformation
384 TGeoHMatrix matrix;
385 {for (Int_t isec=0; isec<72; isec++){
386 const TGeoMatrix* cmatrix=(TGeoMatrix*)array->At(isec);
387 if (!cmatrix) continue;
388 matrix.Multiply(cmatrix);
389 }}
390 TGeoHMatrix matrixMean(matrix);
391 matrixMean.SetDx(matrix.GetTranslation()[0]/72.);
392 matrixMean.SetDy(matrix.GetTranslation()[1]/72.);
393 matrixMean.SetDz(matrix.GetTranslation()[2]/72.);
394 Double_t rotation[12];
395 {for (Int_t i=0; i<12; i++) {
396 rotation[i]=1.0;
397 if (TMath::Abs(matrix.GetRotationMatrix()[i]-1.)>0.1){
398 rotation[i]=matrix.GetRotationMatrix()[i]/72.;
399 }
400 }}
401 matrixMean.SetRotation(rotation);
402 TGeoHMatrix matrixInv = matrixMean.Inverse();
403 //
404 {for (Int_t isec=0; isec<72; isec++){
405 TGeoHMatrix* amatrix=(TGeoHMatrix*)(array->At(isec)->Clone());
406 if (!amatrix) continue;
407 amatrix->Multiply(&matrixInv);
408 arrayNew->AddAt(amatrix,isec);
409 }}
410 if (alignIn->GetAlignGlobal()) matrixMean.Multiply((alignIn->GetAlignGlobal()));
411 AliTPCCalibGlobalMisalignment *alignOut = new AliTPCCalibGlobalMisalignment;
412 alignOut->SetAlignGlobal(&matrixMean);
413 alignOut->SetAlignSectors(arrayNew);
414 /*
415 Checks transformation:
416 AliTPCCalibGlobalMisalignment * alignIn = AliTPCCalibGlobalMisalignment::CreateOCDBAlign()
417 AliTPCCalibGlobalMisalignment * alignOut = AliTPCCalibGlobalMisalignment::CreateMeanAlign(alignIn)
418 alignOutM= (AliTPCCalibGlobalMisalignment*)alignOut->Clone();
419 alignOutS= (AliTPCCalibGlobalMisalignment*)alignOut->Clone();
420 alignOutS->SetAlignGlobal(0);
421 alignOutM->SetAlignSectors(0);
422 //
423 AliTPCCorrection::AddVisualCorrection(alignOut,0);
424 AliTPCCorrection::AddVisualCorrection(alignOutM,1);
425 AliTPCCorrection::AddVisualCorrection(alignOutS,2);
426 AliTPCCorrection::AddVisualCorrection(alignIn,3);
427
428 TF1 f0("f0","AliTPCCorrection::GetCorrSector(x,85,0.9,1,0)",0,18);
429 TF1 f1("f1","AliTPCCorrection::GetCorrSector(x,85,0.9,1,1)",0,18);
430 TF1 f2("f2","AliTPCCorrection::GetCorrSector(x,85,0.9,1,2)",0,18);
431 TF1 f3("f3","AliTPCCorrection::GetCorrSector(x,85,0.9,1,3)",0,18);
432 f0->SetLineColor(1);
433 f1->SetLineColor(2);
434 f2->SetLineColor(3);
435 f3->SetLineColor(4);
436 f0->Draw();
437 f1->Draw("same");
438 f2->Draw("same");
439 f3->Draw("same");
440
441 TF2 f2D("f2D","AliTPCCorrection::GetCorrSector(x,y,0.9,1,0)-AliTPCCorrection::GetCorrSector(x,y,0.9,1,3)",0,18,85,245);
442 */
443 return alignOut;
444}
445
446
447void AliTPCCalibGlobalMisalignment::DumpAlignment( AliTPCCalibGlobalMisalignment* align, TTreeSRedirector *pcstream, const char *name){
448 //
32b5322b 449 // Dump alignment per sector into tree
4e093f35 450 //
451 TObjArray * array = align->GetAlignSectors();
452 if (!array) return;
453 //
454 //Get mean transformation
455 TGeoHMatrix matrix;
456 {for (Int_t isec=0; isec<72; isec++){
457 TGeoHMatrix* cmatrix=(TGeoHMatrix*)array->At(isec);
458 TGeoHMatrix* cmatrixDown=(TGeoHMatrix*)array->At(isec%36);
459 TGeoHMatrix* cmatrixUp=(TGeoHMatrix*)array->At(isec%36+36);
460 TGeoHMatrix diff(*cmatrixDown);
461 diff.Multiply(&(cmatrixUp->Inverse()));
462 (*pcstream)<<name<<
463 "isec="<<isec<<
464 "m0.="<<cmatrix<<
465 "diff.="<<&diff<<
466 "\n";
467 }
468 }
469
470}