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Merge branch 'master_patch'
[u/mrichter/AliRoot.git] / EVE / EveDet / AliEveMUONTrack.cxx
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a15e6d7d 1
fafff680 2// Main authors: Matevz Tadel & Alja Mrak-Tadel & Bogdan Vulpescu: 2006, 2007
e19f3684 3
d810d0de 4/**************************************************************************
5 * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. *
6 * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for *
51346b82 7 * full copyright notice. *
d810d0de 8 **************************************************************************/
16718cdc 9
d810d0de 10#include "AliEveMUONTrack.h"
11
707b281a 12#include <EveBase/AliEveEventManager.h>
eadce74d 13
e19f3684 14#include <AliMagF.h>
15#include <AliLog.h>
eadce74d 16#include <AliESDMuonTrack.h>
af885e0f 17#include <AliESDEvent.h>
82e1eece 18#include <AliESDVertex.h>
eadce74d 19#include <AliRunLoader.h>
20#include <AliRun.h>
e19f3684 21
22#include <AliMUONTrack.h>
eadce74d 23#include <AliMUONTriggerTrack.h>
e19f3684 24#include <AliMUONTrackParam.h>
25#include <AliMUONConstants.h>
103e6575 26#include <AliMUONESDInterface.h>
b38f90a4 27#include <AliMUONVCluster.h>
e19f3684 28
ce8cd162 29#include <TObjArray.h>
f7a1cc68 30#include <TGeoGlobalMagField.h>
eadce74d 31#include <TParticle.h>
32#include <TParticlePDG.h>
f7a1cc68 33#include <TROOT.h>
34#include <TStyle.h>
eadce74d 35
36#include <Riostream.h>
d810d0de 37
a15e6d7d 38//==============================================================================
39// AliEveMUONTrack
40//==============================================================================
41//==============================================================================
e19f3684 42
57ffa5fb 43//______________________________________________________________________________
84aff7a4 44// Produce TEveUtil:TEveTrack from AliMUONTrack with dipole field model
e19f3684 45
c82bb898 46using std::cout;
47using std::endl;
48using std::setw;
49using std::setprecision;
d810d0de 50ClassImp(AliEveMUONTrack)
e19f3684 51
eadce74d 52
57ffa5fb 53//______________________________________________________________________________
d810d0de 54AliEveMUONTrack::AliEveMUONTrack(TEveRecTrack* t, TEveTrackPropagator* rs) :
84aff7a4 55 TEveTrack(t,rs),
e19f3684 56 fTrack(0),
eadce74d 57 fPart(0),
58 fCount(0),
59 fIsMUONTrack(kFALSE),
60 fIsMUONTriggerTrack(kFALSE),
61 fIsESDTrack(kFALSE),
62 fIsMCTrack(kFALSE),
63 fIsRefTrack(kFALSE)
e19f3684 64{
65 //
66 // constructor
67 //
e19f3684 68}
69
57ffa5fb 70//______________________________________________________________________________
d810d0de 71AliEveMUONTrack::~AliEveMUONTrack()
e19f3684 72{
73 //
74 // destructor
75 //
76
eadce74d 77 if (fIsRefTrack || fIsESDTrack) delete fTrack;
78 if (fIsMCTrack) delete fPart;
79
80}
81
57ffa5fb 82//______________________________________________________________________________
d810d0de 83void AliEveMUONTrack::PrintMCTrackInfo()
eadce74d 84{
85 //
86 // information about the MC particle
87 //
88
89 Float_t pt, p;
90
91 if (!fPart) {
92 cout << " ! no particle ..." << endl;
93 return;
94 }
95
96 cout << endl;
97 cout << " MC track parameters at vertex" << endl;
98 cout << " -------------------------------------------------------------------------------------" << endl;
99 cout << " PDG code Vx Vy Vz Px Py Pz " << endl;
51346b82 100
eadce74d 101 cout << " " <<
51346b82 102 setw(8) << setprecision(0) <<
103 fPart->GetPdgCode() << " " <<
104 setw(8) << setprecision(3) <<
105 fPart->Vx() << " " <<
106 setw(8) << setprecision(3) <<
107 fPart->Vy() << " " <<
108 setw(8) << setprecision(3) <<
109 fPart->Vz() << " " <<
110 setw(8) << setprecision(3) <<
111 fPart->Px() << " " <<
112 setw(8) << setprecision(3) <<
113 fPart->Py() << " " <<
114 setw(8) << setprecision(4) <<
115 fPart->Pz() << " " <<
116
eadce74d 117 endl;
51346b82 118
eadce74d 119 pt = TMath::Sqrt(fPart->Px()*fPart->Px()+fPart->Py()*fPart->Py());
120 p = TMath::Sqrt(fPart->Px()*fPart->Px()+fPart->Py()*fPart->Py()+fPart->Pz()*fPart->Pz());
51346b82 121
eadce74d 122 cout << endl;
51346b82 123 cout << " Pt = " <<
eadce74d 124 setw(8) << setprecision(3) <<
125 pt << " GeV/c" << endl;
51346b82 126
127 cout << " P = " <<
eadce74d 128 setw(8) << setprecision(4) <<
129 p << " GeV/c" << endl;
51346b82 130
eadce74d 131}
132
57ffa5fb 133//______________________________________________________________________________
d810d0de 134void AliEveMUONTrack::PrintMUONTrackInfo()
eadce74d 135{
136 //
137 // information about the reconstructed/reference track; at hits and at vertex
138 //
139
a15e6d7d 140 Double_t radDeg = 180.0/TMath::Pi();
eadce74d 141
142 Int_t nparam;
143 Float_t pt, bc, nbc, zc;
144 AliMUONTrackParam *mtp;
ce8cd162 145 TObjArray *trackParamAtCluster;
eadce74d 146
147 if (!fTrack) {
148 cout << " ! no reconstructed track ..." << endl;
149 return;
150 }
151
152 if (fIsMUONTrack) {
153 cout << endl;
84aff7a4 154 cout << " TEveTrack number " << fLabel << endl;
eadce74d 155 cout << " ---------------------------------------------------------------------------------------------------------------------------------" << endl;
156 cout << endl;
db9c5465 157 cout << " Number of clusters " << fTrack->GetNClusters() << endl;
eadce74d 158 cout << " Match to trigger " << fTrack->GetMatchTrigger() << endl;
159 if (fTrack->GetMatchTrigger()) {
160 cout << " Chi2 tracking-trigger " << fTrack->GetChi2MatchTrigger() << endl;
161 cout << " Local trigger number " << fTrack->GetLoTrgNum() << endl;
162 }
163 }
164
165 if (fIsRefTrack) {
166 cout << endl;
84aff7a4 167 cout << " TEveTrack reference number " << fLabel << endl;
eadce74d 168 cout << " ---------------------------------------------------------------------------------------------------------------------------------" << endl;
169 cout << endl;
db9c5465 170 cout << " Number of clusters " << fTrack->GetNClusters() << endl;
eadce74d 171 }
51346b82 172
db9c5465 173 trackParamAtCluster = fTrack->GetTrackParamAtCluster();
174 nparam = trackParamAtCluster->GetEntries();
eadce74d 175
176 cout << endl;
db9c5465 177 cout << " trackParamAtCluster entries " << nparam << "" << endl;
eadce74d 178 cout << " ---------------------------------------------------------------------------------------------------------------------------------" << endl;
179 cout << " Number InvBendMom BendSlope NonBendSlope BendCoord NonBendCoord Z Px Py Pz P" << endl;
180
181 for (Int_t i = 0; i < nparam; i++) {
182
db9c5465 183 mtp = (AliMUONTrackParam*)trackParamAtCluster->At(i);
eadce74d 184
51346b82 185 cout <<
186 setw(9)<< setprecision(3) <<
187 i << " " <<
eadce74d 188
51346b82 189 setw(8) << setprecision(3) <<
190 mtp->GetInverseBendingMomentum() << " " <<
eadce74d 191
192 setw(8) << setprecision(3) <<
a15e6d7d 193 mtp->GetBendingSlope()*radDeg << " " <<
eadce74d 194
195 setw(8) << setprecision(3) <<
a15e6d7d 196 mtp->GetNonBendingSlope()*radDeg << " " <<
eadce74d 197
198 setw(8) << setprecision(4) <<
51346b82 199 mtp->GetBendingCoor() << " " <<
eadce74d 200
201 setw(8) << setprecision(4) <<
51346b82 202 mtp->GetNonBendingCoor() << " " <<
eadce74d 203
204 setw(10) << setprecision(6) <<
51346b82 205 mtp->GetZ() << " " <<
eadce74d 206
207 setw(8) << setprecision(4) <<
51346b82 208 mtp->Px() << " " <<
eadce74d 209
210 setw(8) << setprecision(4) <<
51346b82 211 mtp->Py() << " " <<
eadce74d 212
213 setw(8) << setprecision(4) <<
51346b82 214 mtp->Pz() << " " <<
eadce74d 215
216 setw(8) << setprecision(4) <<
51346b82 217 mtp->P() << " " <<
eadce74d 218
219 endl;
220
221 }
222
223 cout << endl;
84aff7a4 224 cout << " TEveTrack parameters at vertex" << endl;
eadce74d 225 cout << " --------------------------------------------------------------------------------------------------------------------" << endl;
226 cout << " InvBendMom BendSlope NonBendSlope BendCoord NonBendCoord Z Px Py Pz P" << endl;
227
228 mtp = (AliMUONTrackParam*)fTrack->GetTrackParamAtVertex();
229
230 bc = mtp->GetBendingCoor();
231 nbc = mtp->GetNonBendingCoor();
232 zc = mtp->GetZ();
233 if (bc < 0.001) bc = 0.0;
234 if (nbc < 0.001) nbc = 0.0;
235 if (zc < 0.001) zc = 0.0;
236
237 cout << " " <<
eadce74d 238 setw(8) << setprecision(3) <<
51346b82 239 mtp->GetInverseBendingMomentum() << " " <<
240
241 setw(8) << setprecision(3) <<
a15e6d7d 242 mtp->GetBendingSlope()*radDeg << " " <<
51346b82 243
eadce74d 244 setw(8) << setprecision(3) <<
a15e6d7d 245 mtp->GetNonBendingSlope()*radDeg << " " <<
51346b82 246
eadce74d 247 setw(8) << setprecision(4) <<
51346b82 248 bc << " " <<
249
eadce74d 250 setw(8) << setprecision(4) <<
51346b82 251 nbc << " " <<
252
eadce74d 253 setw(10) << setprecision(6) <<
51346b82 254 zc << " " <<
255
eadce74d 256 setw(8) << setprecision(4) <<
51346b82 257 mtp->Px() << " " <<
258
eadce74d 259 setw(8) << setprecision(4) <<
51346b82 260 mtp->Py() << " " <<
261
eadce74d 262 setw(8) << setprecision(4) <<
51346b82 263 mtp->Pz() << " " <<
264
eadce74d 265 setw(8) << setprecision(4) <<
51346b82 266 mtp->P() << " " <<
267
eadce74d 268 endl;
51346b82 269
eadce74d 270 pt = TMath::Sqrt(mtp->Px()*mtp->Px()+mtp->Py()*mtp->Py());
271
272 cout << endl;
51346b82 273 cout << " Pt = " <<
eadce74d 274 setw(8) << setprecision(3) <<
275 pt << " GeV/c" << endl;
276
277}
278
57ffa5fb 279//______________________________________________________________________________
d810d0de 280void AliEveMUONTrack::PrintMUONTriggerTrackInfo()
eadce74d 281{
282 //
283 // information about the trigger track
284 //
285
a15e6d7d 286 // Double_t radDeg = 180.0/TMath::Pi();
eadce74d 287
288}
289
57ffa5fb 290//______________________________________________________________________________
d810d0de 291void AliEveMUONTrack::PrintESDTrackInfo()
eadce74d 292{
293 //
294 // information about the reconstructed ESD track at vertex
295 //
296
a15e6d7d 297 Double_t radDeg = 180.0/TMath::Pi();
eadce74d 298 Float_t pt;
299
300 AliMUONTrackParam *mtp = (AliMUONTrackParam*)fTrack->GetTrackParamAtVertex();
301
302 cout << endl;
303 cout << " ESD muon track " << endl;
304 cout << " -----------------------------------------------------------------------------------------------------------" << endl;
305 cout << " InvBendMom BendSlope NonBendSlope BendCoord NonBendCoord Z Px Py Pz" << endl;
51346b82 306
307 cout << " " <<
308
309 setw(8) << setprecision(4) <<
310 mtp->GetInverseBendingMomentum() << " " <<
311
eadce74d 312 setw(8) << setprecision(3) <<
a15e6d7d 313 mtp->GetBendingSlope()*radDeg << " " <<
51346b82 314
eadce74d 315 setw(8) << setprecision(3) <<
a15e6d7d 316 mtp->GetNonBendingSlope()*radDeg << " " <<
51346b82 317
eadce74d 318 setw(8) << setprecision(4) <<
51346b82 319 mtp->GetBendingCoor() << " " <<
320
eadce74d 321 setw(8) << setprecision(4) <<
51346b82 322 mtp->GetNonBendingCoor() << " " <<
323
eadce74d 324 setw(10) << setprecision(6) <<
51346b82 325 mtp->GetZ() << " " <<
326
eadce74d 327 setw(8) << setprecision(3) <<
51346b82 328 mtp->Px() << " " <<
329
eadce74d 330 setw(8) << setprecision(3) <<
51346b82 331 mtp->Py() << " " <<
332
eadce74d 333 setw(8) << setprecision(3) <<
51346b82 334 mtp->Pz() << " " <<
335
eadce74d 336 endl;
51346b82 337
eadce74d 338 pt = TMath::Sqrt(mtp->Px()*mtp->Px()+mtp->Py()*mtp->Py());
51346b82 339
eadce74d 340 cout << endl;
51346b82 341 cout << " Pt = " <<
eadce74d 342 setw(8) << setprecision(3) <<
343 pt << " GeV/c" << endl;
51346b82 344
345 cout << " P = " <<
eadce74d 346 setw(8) << setprecision(4) <<
347 mtp->P() << " GeV/c" << endl;
51346b82 348
d810d0de 349 AliESDEvent* esd = AliEveEventManager::AssertESD();
51346b82 350
eadce74d 351 Double_t spdVertexX = 0;
352 Double_t spdVertexY = 0;
353 Double_t spdVertexZ = 0;
354 Double_t esdVertexX = 0;
355 Double_t esdVertexY = 0;
356 Double_t esdVertexZ = 0;
357
358 AliESDVertex* spdVertex = (AliESDVertex*) esd->GetVertex();
359 if (spdVertex->GetNContributors()) {
e690d4d0 360 spdVertexZ = spdVertex->GetZ();
361 spdVertexY = spdVertex->GetY();
362 spdVertexX = spdVertex->GetX();
eadce74d 363 }
51346b82 364
eadce74d 365 AliESDVertex* esdVertex = (AliESDVertex*) esd->GetPrimaryVertex();
366 if (esdVertex->GetNContributors()) {
e690d4d0 367 esdVertexZ = esdVertex->GetZ();
368 esdVertexY = esdVertex->GetY();
369 esdVertexX = esdVertex->GetX();
eadce74d 370 }
51346b82 371
eadce74d 372 Float_t t0v = esd->GetT0zVertex();
51346b82 373
eadce74d 374 cout << endl;
375 cout << endl;
51346b82 376 cout << "External vertex SPD: " <<
eadce74d 377 setw(3) <<
378 spdVertex->GetNContributors() << " " <<
379 setw(8) << setprecision(3) <<
380 spdVertexX << " " <<
381 spdVertexY << " " <<
382 spdVertexZ << " " << endl;
51346b82 383 cout << "External vertex ESD: " <<
eadce74d 384 setw(3) <<
385 esdVertex->GetNContributors() << " " <<
386 setw(8) << setprecision(3) <<
387 esdVertexX << " " <<
388 esdVertexY << " " <<
389 esdVertexZ << " " << endl;
51346b82 390 cout << "External vertex T0: " <<
eadce74d 391 setw(8) << setprecision(3) <<
392 t0v << " " << endl;
51346b82 393
e19f3684 394}
395
57ffa5fb 396//______________________________________________________________________________
d810d0de 397void AliEveMUONTrack::MUONTrackInfo()
e19f3684 398{
399 //
400 // MENU function
401 //
402
eadce74d 403 if (fIsMCTrack) {
404 PrintMCTrackInfo();
405 }
51346b82 406
eadce74d 407 if (fIsMUONTrack || fIsRefTrack) {
408 PrintMUONTrackInfo();
409 }
51346b82 410
eadce74d 411 if (fIsESDTrack) {
412 PrintESDTrackInfo();
413 }
414
415 if (fIsMUONTriggerTrack) {
416 PrintMUONTriggerTrackInfo();
417 }
51346b82 418
eadce74d 419 cout << endl;
420 cout << endl;
421 cout << endl;
422 cout << " (slopes [deg], coord [cm], p [GeV/c])" << endl;
e19f3684 423
424}
425
57ffa5fb 426//______________________________________________________________________________
d810d0de 427void AliEveMUONTrack::MUONTriggerInfo()
e19f3684 428{
429 //
430 // MENU function
431 //
432
eadce74d 433 if (fIsMUONTrack) {
d810d0de 434 TEveUtil::TEveUtil::LoadMacro("MUON_trigger_info.C");
eadce74d 435 gROOT->ProcessLine(Form("MUON_trigger_info(%d);", fLabel));
436 }
437 if (fIsRefTrack) {
438 cout << "This is a reference track!" << endl;
439 }
440 if (fIsMCTrack) {
441 cout << "This is a Monte-Carlo track!" << endl;
442 }
443 if (fIsESDTrack) {
444
d810d0de 445 AliESDEvent* esd = AliEveEventManager::AssertESD();
eadce74d 446 ULong64_t triggerMask = esd->GetTriggerMask();
447
448 cout << endl;
449 cout << ">>>>>#########################################################################################################################" << endl;
450 cout << endl;
451
452 cout << " ESD track trigger info" << endl;
453 cout << " -----------------------------------------------------" << endl;
454 cout << endl;
455
456 cout << " Match to trigger " << fTrack->GetMatchTrigger() << endl;
457 cout << endl;
458 cout << " ESD trigger mask = " << triggerMask << endl;
459
460 cout << endl;
461 cout << "#########################################################################################################################<<<<<" << endl;
462 cout << endl;
51346b82 463
eadce74d 464 }
e19f3684 465
466}
467
57ffa5fb 468//______________________________________________________________________________
d810d0de 469void AliEveMUONTrack::MakeMUONTrack(AliMUONTrack *mtrack)
e19f3684 470{
471 //
472 // builds the track with dipole field
473 //
474
58e15fc1 475 if (!fIsESDTrack) {
476 if (!fIsRefTrack) {
477 fIsMUONTrack = kTRUE;
b38f90a4 478 fTrack = mtrack;
58e15fc1 479 } else {
480 fTrack = new AliMUONTrack(*mtrack);
481 }
eadce74d 482 }
e19f3684 483
484 Double_t xv, yv;
485 Float_t ax, bx, ay, by;
eadce74d 486 Float_t xr[28], yr[28], zr[28];
487 Float_t xrc[28], yrc[28], zrc[28];
b38f90a4 488 Int_t chr[28];
e19f3684 489 char form[1000];
51346b82 490
e19f3684 491 TMatrixD smatrix(2,2);
492 TMatrixD sums(2,1);
493 TMatrixD res(2,1);
494
e19f3684 495 // middle z between the two detector planes of the trigger chambers
496 Float_t zg[4] = { -1603.5, -1620.5, -1703.5, -1720.5 };
497
cef26510 498 Float_t pt = 0.0;
b38f90a4 499 Float_t pv[3] = {0., 0., 0.};
eadce74d 500
501 if (fIsMUONTrack) {
eadce74d 502 if (mtrack->GetMatchTrigger()) {
2eb2e20c 503 snprintf(form,1000,"MUONTrack %2d (MT)", fLabel);
eadce74d 504 } else {
2eb2e20c 505 snprintf(form,1000,"MUONTrack %2d ", fLabel);
eadce74d 506 }
cef26510 507 SetName(form);
508 SetLineStyle(1);
e19f3684 509 }
51346b82 510
b38f90a4 511 AliMUONTrackParam *trackParam = 0x0;
58e15fc1 512 if (fIsMUONTrack || fIsESDTrack) {
b38f90a4 513 trackParam = mtrack->GetTrackParamAtVertex();
514 SetPoint(fCount,trackParam->GetNonBendingCoor(),trackParam->GetBendingCoor(),trackParam->GetZ());
eadce74d 515 fCount++;
516 }
e19f3684 517
b38f90a4 518 for (Int_t i = 0; i < 28; i++) {
519 xr[i]=yr[i]=zr[i]=0.0;
520 chr[i]=-1;
521 }
522
db9c5465 523 Int_t nTrackHits = mtrack->GetNClusters();
ce8cd162 524 TObjArray* trackParamAtCluster = mtrack->GetTrackParamAtCluster();
e19f3684 525 for (Int_t iHit = 0; iHit < nTrackHits; iHit++){
cef26510 526
51346b82 527 trackParam = (AliMUONTrackParam*) trackParamAtCluster->At(iHit);
528
cef26510 529 if (iHit == 0) {
58e15fc1 530 if (IsMUONTrack() || IsESDTrack()) {
cef26510 531 pt = TMath::Sqrt(trackParam->Px()*trackParam->Px()+trackParam->Py()*trackParam->Py());
532 SetLineColor(ColorIndex(pt));
533 }
534 pv[0] = trackParam->Px();
535 pv[1] = trackParam->Py();
536 pv[2] = trackParam->Pz();
537 fP.Set(pv);
538 }
539
b38f90a4 540 xr[iHit] = trackParam->GetNonBendingCoor();
541 yr[iHit] = trackParam->GetBendingCoor();
542 zr[iHit] = trackParam->GetZ();
543 chr[iHit] = trackParam->GetClusterPtr()->GetChamberId();
e19f3684 544
545 }
b38f90a4 546
547 SetPoint(fCount,xr[0],yr[0],zr[0]);
548 fCount++;
549 for (Int_t iHit = 1; iHit < nTrackHits; iHit++) {
550 if (chr[iHit] > 3 && chr[iHit-1] < 6) Propagate(xr,yr,zr,iHit-1,iHit);
551 SetPoint(fCount,xr[iHit],yr[iHit],zr[iHit]);
e19f3684 552 fCount++;
e19f3684 553 }
b38f90a4 554
58e15fc1 555 if (!fIsMUONTrack && !fIsESDTrack) return;
e19f3684 556
557 Int_t nrc = 0;
b38f90a4 558 if (mtrack->GetMatchTrigger()) {
51346b82 559
e19f3684 560 for (Int_t i = 0; i < nTrackHits; i++) {
561 if (TMath::Abs(zr[i]) > 1000.0) {
84aff7a4 562 //printf("TEveHit %d x %f y %f z %f \n",iHit,xr[i],yr[i],zr[i]);
e19f3684 563 xrc[nrc] = xr[i];
564 yrc[nrc] = yr[i];
565 zrc[nrc] = zr[i];
566 nrc++;
567 }
568 }
51346b82 569
e19f3684 570 if (nrc < 2) return;
51346b82 571
e19f3684 572 // fit x-z
573 smatrix.Zero();
574 sums.Zero();
575 for (Int_t i = 0; i < nrc; i++) {
576 xv = (Double_t)zrc[i];
577 yv = (Double_t)xrc[i];
578 //printf("x-z: xv %f yv %f \n",xv,yv);
579 smatrix(0,0) += 1.0;
580 smatrix(1,1) += xv*xv;
581 smatrix(0,1) += xv;
582 smatrix(1,0) += xv;
583 sums(0,0) += yv;
584 sums(1,0) += xv*yv;
585 }
586 res = smatrix.Invert() * sums;
587 ax = res(0,0);
588 bx = res(1,0);
51346b82 589
e19f3684 590 // fit y-z
591 smatrix.Zero();
592 sums.Zero();
593 for (Int_t i = 0; i < nrc; i++) {
594 xv = (Double_t)zrc[i];
595 yv = (Double_t)yrc[i];
596 //printf("y-z: xv %f yv %f \n",xv,yv);
597 smatrix(0,0) += 1.0;
598 smatrix(1,1) += xv*xv;
599 smatrix(0,1) += xv;
600 smatrix(1,0) += xv;
601 sums(0,0) += yv;
602 sums(1,0) += xv*yv;
603 }
604 res = smatrix.Invert() * sums;
605 ay = res(0,0);
606 by = res(1,0);
51346b82 607
e19f3684 608 Float_t xtc, ytc, ztc;
609 for (Int_t ii = 0; ii < 4; ii++) {
51346b82 610
e19f3684 611 ztc = zg[ii];
612 ytc = ay+by*zg[ii];
613 xtc = ax+bx*zg[ii];
51346b82 614
e19f3684 615 //printf("tc: x %f y %f z %f \n",xtc,ytc,ztc);
51346b82 616
e19f3684 617 SetPoint(fCount,xtc,ytc,ztc);
618 fCount++;
51346b82 619
e19f3684 620 }
51346b82 621
e19f3684 622 } // end match trigger
623
624}
625
57ffa5fb 626//______________________________________________________________________________
d810d0de 627void AliEveMUONTrack::MakeMUONTriggerTrack(AliMUONTriggerTrack *mtrack)
eadce74d 628{
629 //
630 // builds the trigger track from one point and direction
631 //
632
633 Float_t x1 = mtrack->GetX11();
634 Float_t y1 = mtrack->GetY11();
635 Float_t thex = mtrack->GetThetax();
636 Float_t they = mtrack->GetThetay();
637
638 Float_t z11 = -1600.0;
639 Float_t z22 = -1724.0;
640 Float_t dz = z22-z11;
641
642 Float_t x2 = x1 + dz*TMath::Tan(thex);
643 Float_t y2 = y1 + dz*TMath::Tan(they);
644
645 SetPoint(fCount,x1,y1,z11); fCount++;
646 SetPoint(fCount,x2,y2,z22); fCount++;
647
648 char form[1000];
649
57394a42 650 snprintf(form,1000,"MUONTriggerTrack %2d",mtrack->GetLoTrgNum());
eadce74d 651 SetName(form);
652 SetLineStyle(1);
653
654}
655
57ffa5fb 656//______________________________________________________________________________
d810d0de 657void AliEveMUONTrack::MakeESDTrack(AliESDMuonTrack *mtrack)
eadce74d 658{
659 //
660 // builds the track with dipole field starting from the TParticle
661 //
662
663 fIsESDTrack = kTRUE;
664
58e15fc1 665 char form[1000];
666 if (mtrack->GetMatchTrigger()) {
2eb2e20c 667 snprintf(form,1000,"ESDTrack %2d (MT)", fLabel);
58e15fc1 668 } else {
2eb2e20c 669 snprintf(form,1000,"ESDTrack %2d ", fLabel);
58e15fc1 670 }
671 SetName(form);
672 SetLineStyle(3);
673 SetLineColor(0);
674
eadce74d 675 fTrack = new AliMUONTrack();
58e15fc1 676
677 // create a simple track from the ESD track
ad3c6eda 678 AliMUONESDInterface::ESDToMUON(*mtrack,*fTrack);
19e6c9f1 679
b38f90a4 680 // reset track parameters at vertex to the ones at DCA
681 AliMUONTrackParam paramAtDCA;
682 AliMUONESDInterface::GetParamAtDCA(*mtrack, paramAtDCA);
683 fTrack->SetTrackParamAtVertex(&paramAtDCA);
684
58e15fc1 685 MakeMUONTrack(fTrack);
eadce74d 686
687}
688
57ffa5fb 689//______________________________________________________________________________
d810d0de 690void AliEveMUONTrack::MakeMCTrack(TParticle *part)
eadce74d 691{
692 //
693 // builds the track with dipole field starting from the TParticle
694 //
695
696 fIsMCTrack = kTRUE;
697
698 fPart = new TParticle(*part);
699
700 char form[1000];
2eb2e20c 701 snprintf(form,1000,"TEveMCTrack %2d ", fLabel);
eadce74d 702 SetName(form);
703 SetLineStyle(2);
704 SetLineColor(8);
705
706 Double_t vect[7], vout[7];
707 Double_t step = 1.0;
708
709 Float_t pv[3];
710 pv[0] = fPart->Px();
711 pv[1] = fPart->Py();
712 pv[2] = fPart->Pz();
713 fP.Set(pv);
714
715 vect[0] = fPart->Vx();
716 vect[1] = fPart->Vy();
717 vect[2] = fPart->Vz();
718 vect[3] = fPart->Px()/fPart->P();
719 vect[4] = fPart->Py()/fPart->P();
720 vect[5] = fPart->Pz()/fPart->P();
721 vect[6] = fPart->P();
722
723 TParticlePDG *ppdg = fPart->GetPDG(1);
724 Int_t charge = (Int_t)(ppdg->Charge()/3.0);
51346b82 725
eadce74d 726 Double_t zMax = -1750.0;
727 Double_t rMax = 350.0;
728 Double_t r = 0.0;
729
730 Int_t nSteps = 0;
731 while ((vect[2] > zMax) && (nSteps < 10000) && (r < rMax)) {
732 nSteps++;
733 OneStepRungekutta(charge, step, vect, vout);
734 SetPoint(fCount,vout[0],vout[1],vout[2]);
735 fCount++;
736 for (Int_t i = 0; i < 7; i++) {
737 vect[i] = vout[i];
738 }
739 r = TMath::Sqrt(vect[0]*vect[0]+vect[1]*vect[1]);
740 }
741
742}
743
57ffa5fb 744//______________________________________________________________________________
d810d0de 745void AliEveMUONTrack::MakeRefTrack(AliMUONTrack *mtrack)
eadce74d 746{
747 //
748 // builds the track with dipole field starting from the TParticle
749 //
750
751 fIsRefTrack = kTRUE;
752
753 char form[1000];
2eb2e20c 754 snprintf(form,1000,"RefTrack %2d ", fLabel);
eadce74d 755 SetName(form);
756 SetLineStyle(2);
757 SetLineColor(0);
758
759 MakeMUONTrack(mtrack);
760
761}
762
57ffa5fb 763//______________________________________________________________________________
d810d0de 764void AliEveMUONTrack::Propagate(Float_t *xr, Float_t *yr, Float_t *zr, Int_t i1, Int_t i2)
e19f3684 765{
766 //
767 // propagate in magnetic field between hits of indices i1 and i2
768 //
769
770 Double_t vect[7], vout[7];
771 Double_t step = 1.0;
cef26510 772 Double_t zMax = 0.0;
773 Int_t charge = 0;
774 AliMUONTrackParam *trackParam = 0;
ce8cd162 775 TObjArray *trackParamAtCluster = 0;
e19f3684 776
777 if (i2 == 9999) {
eadce74d 778 zMax = zr[i1]+1.5*step;
e19f3684 779 } else {
eadce74d 780 zMax = zr[i2]+1.5*step;
e19f3684 781 }
782
db9c5465 783 trackParamAtCluster = fTrack->GetTrackParamAtCluster();
e19f3684 784
d71fc3ab 785 if (IsMUONTrack() || IsESDTrack() || IsRefTrack()) {
51346b82 786 trackParam = (AliMUONTrackParam*)trackParamAtCluster->At(i1);
1dd67089 787 charge = (Int_t)trackParam->GetCharge();
d71fc3ab 788 } else {
789 return;
cef26510 790 }
51346b82 791
e19f3684 792 vect[0] = xr[i1];
793 vect[1] = yr[i1];
794 vect[2] = zr[i1];
e19f3684 795 vect[6] = trackParam->P();
b38f90a4 796 vect[3] = trackParam->Px()/vect[6];
797 vect[4] = trackParam->Py()/vect[6];
798 vect[5] = trackParam->Pz()/vect[6];
e19f3684 799
800 Int_t nSteps = 0;
801 while ((vect[2] > zMax) && (nSteps < 10000)) {
802 nSteps++;
803 OneStepRungekutta(charge, step, vect, vout);
e19f3684 804 SetPoint(fCount,vout[0],vout[1],vout[2]);
805 fCount++;
806 for (Int_t i = 0; i < 7; i++) {
807 vect[i] = vout[i];
808 }
809 }
51346b82 810
e19f3684 811}
812
57ffa5fb 813//______________________________________________________________________________
51346b82 814void AliEveMUONTrack::OneStepRungekutta(Double_t charge, Double_t step,
e19f3684 815 Double_t* vect, Double_t* vout)
816{
817/// ******************************************************************
818/// * *
819/// * Runge-Kutta method for tracking a particle through a magnetic *
820/// * field. Uses Nystroem algorithm (See Handbook Nat. Bur. of *
821/// * Standards, procedure 25.5.20) *
822/// * *
823/// * Input parameters *
824/// * CHARGE Particle charge *
825/// * STEP Step size *
826/// * VECT Initial co-ords,direction cosines,momentum *
827/// * Output parameters *
828/// * VOUT Output co-ords,direction cosines,momentum *
829/// * User routine called *
830/// * CALL GUFLD(X,F) *
831/// * *
832/// * ==>Called by : <USER>, GUSWIM *
833/// * Authors R.Brun, M.Hansroul ********* *
834/// * V.Perevoztchikov (CUT STEP implementation) *
835/// * *
836/// * *
837/// ******************************************************************
838
839 Double_t h2, h4, f[4];
840 Double_t xyzt[3], a, b, c, ph,ph2;
841 Double_t secxs[4],secys[4],seczs[4],hxp[3];
842 Double_t g1, g2, g3, g4, g5, g6, ang2, dxt, dyt, dzt;
843 Double_t est, at, bt, ct, cba;
844 Double_t f1, f2, f3, f4, rho, tet, hnorm, hp, rho1, sint, cost;
51346b82 845
e19f3684 846 Double_t x;
847 Double_t y;
848 Double_t z;
51346b82 849
e19f3684 850 Double_t xt;
851 Double_t yt;
852 Double_t zt;
853
854 Double_t maxit = 1992;
855 Double_t maxcut = 11;
856
857 const Double_t kdlt = 1e-4;
858 const Double_t kdlt32 = kdlt/32.;
859 const Double_t kthird = 1./3.;
860 const Double_t khalf = 0.5;
861 const Double_t kec = 2.9979251e-4;
862
863 const Double_t kpisqua = 9.86960440109;
864 const Int_t kix = 0;
865 const Int_t kiy = 1;
866 const Int_t kiz = 2;
867 const Int_t kipx = 3;
868 const Int_t kipy = 4;
869 const Int_t kipz = 5;
51346b82 870
e19f3684 871 // *.
872 // *. ------------------------------------------------------------------
873 // *.
874 // * this constant is for units cm,gev/c and kgauss
875 // *
876 Int_t iter = 0;
877 Int_t ncut = 0;
878 for(Int_t j = 0; j < 7; j++)
879 vout[j] = vect[j];
880
881 Double_t pinv = kec * charge / vect[6];
882 Double_t tl = 0.;
883 Double_t h = step;
884 Double_t rest;
885
51346b82 886
e19f3684 887 do {
888 rest = step - tl;
889 if (TMath::Abs(h) > TMath::Abs(rest)) h = rest;
890 //cmodif: call gufld(vout,f) changed into:
f7a1cc68 891 TGeoGlobalMagField::Instance()->Field(vout,f);
e19f3684 892
893 // *
894 // * start of integration
895 // *
896 x = vout[0];
897 y = vout[1];
898 z = vout[2];
899 a = vout[3];
900 b = vout[4];
901 c = vout[5];
902
903 h2 = khalf * h;
904 h4 = khalf * h2;
905 ph = pinv * h;
906 ph2 = khalf * ph;
907 secxs[0] = (b * f[2] - c * f[1]) * ph2;
908 secys[0] = (c * f[0] - a * f[2]) * ph2;
909 seczs[0] = (a * f[1] - b * f[0]) * ph2;
910 ang2 = (secxs[0]*secxs[0] + secys[0]*secys[0] + seczs[0]*seczs[0]);
911 if (ang2 > kpisqua) break;
912
913 dxt = h2 * a + h4 * secxs[0];
914 dyt = h2 * b + h4 * secys[0];
915 dzt = h2 * c + h4 * seczs[0];
916 xt = x + dxt;
917 yt = y + dyt;
918 zt = z + dzt;
919 // *
920 // * second intermediate point
921 // *
922
923 est = TMath::Abs(dxt) + TMath::Abs(dyt) + TMath::Abs(dzt);
924 if (est > h) {
925 if (ncut++ > maxcut) break;
926 h *= khalf;
927 continue;
928 }
51346b82 929
e19f3684 930 xyzt[0] = xt;
931 xyzt[1] = yt;
932 xyzt[2] = zt;
933
934 //cmodif: call gufld(xyzt,f) changed into:
f7a1cc68 935 TGeoGlobalMagField::Instance()->Field(xyzt,f);
e19f3684 936
937 at = a + secxs[0];
938 bt = b + secys[0];
939 ct = c + seczs[0];
940
941 secxs[1] = (bt * f[2] - ct * f[1]) * ph2;
942 secys[1] = (ct * f[0] - at * f[2]) * ph2;
943 seczs[1] = (at * f[1] - bt * f[0]) * ph2;
944 at = a + secxs[1];
945 bt = b + secys[1];
946 ct = c + seczs[1];
947 secxs[2] = (bt * f[2] - ct * f[1]) * ph2;
948 secys[2] = (ct * f[0] - at * f[2]) * ph2;
949 seczs[2] = (at * f[1] - bt * f[0]) * ph2;
950 dxt = h * (a + secxs[2]);
951 dyt = h * (b + secys[2]);
952 dzt = h * (c + seczs[2]);
953 xt = x + dxt;
954 yt = y + dyt;
955 zt = z + dzt;
956 at = a + 2.*secxs[2];
957 bt = b + 2.*secys[2];
958 ct = c + 2.*seczs[2];
959
960 est = TMath::Abs(dxt)+TMath::Abs(dyt)+TMath::Abs(dzt);
961 if (est > 2.*TMath::Abs(h)) {
962 if (ncut++ > maxcut) break;
963 h *= khalf;
964 continue;
965 }
51346b82 966
e19f3684 967 xyzt[0] = xt;
968 xyzt[1] = yt;
969 xyzt[2] = zt;
970
971 //cmodif: call gufld(xyzt,f) changed into:
f7a1cc68 972 TGeoGlobalMagField::Instance()->Field(xyzt,f);
e19f3684 973
974 z = z + (c + (seczs[0] + seczs[1] + seczs[2]) * kthird) * h;
975 y = y + (b + (secys[0] + secys[1] + secys[2]) * kthird) * h;
976 x = x + (a + (secxs[0] + secxs[1] + secxs[2]) * kthird) * h;
977
978 secxs[3] = (bt*f[2] - ct*f[1])* ph2;
979 secys[3] = (ct*f[0] - at*f[2])* ph2;
980 seczs[3] = (at*f[1] - bt*f[0])* ph2;
981 a = a+(secxs[0]+secxs[3]+2. * (secxs[1]+secxs[2])) * kthird;
982 b = b+(secys[0]+secys[3]+2. * (secys[1]+secys[2])) * kthird;
983 c = c+(seczs[0]+seczs[3]+2. * (seczs[1]+seczs[2])) * kthird;
984
985 est = TMath::Abs(secxs[0]+secxs[3] - (secxs[1]+secxs[2]))
986 + TMath::Abs(secys[0]+secys[3] - (secys[1]+secys[2]))
987 + TMath::Abs(seczs[0]+seczs[3] - (seczs[1]+seczs[2]));
988
989 if (est > kdlt && TMath::Abs(h) > 1.e-4) {
990 if (ncut++ > maxcut) break;
991 h *= khalf;
992 continue;
993 }
994
995 ncut = 0;
996 // * if too many iterations, go to helix
997 if (iter++ > maxit) break;
998
999 tl += h;
51346b82 1000 if (est < kdlt32)
e19f3684 1001 h *= 2.;
1002 cba = 1./ TMath::Sqrt(a*a + b*b + c*c);
1003 vout[0] = x;
1004 vout[1] = y;
1005 vout[2] = z;
1006 vout[3] = cba*a;
1007 vout[4] = cba*b;
1008 vout[5] = cba*c;
1009 rest = step - tl;
1010 if (step < 0.) rest = -rest;
1011 if (rest < 1.e-5*TMath::Abs(step)) return;
1012
1013 } while(1);
1014
1015 // angle too big, use helix
1016
1017 f1 = f[0];
1018 f2 = f[1];
1019 f3 = f[2];
1020 f4 = TMath::Sqrt(f1*f1+f2*f2+f3*f3);
1021 rho = -f4*pinv;
1022 tet = rho * step;
51346b82 1023
e19f3684 1024 hnorm = 1./f4;
1025 f1 = f1*hnorm;
1026 f2 = f2*hnorm;
1027 f3 = f3*hnorm;
1028
1029 hxp[0] = f2*vect[kipz] - f3*vect[kipy];
1030 hxp[1] = f3*vect[kipx] - f1*vect[kipz];
1031 hxp[2] = f1*vect[kipy] - f2*vect[kipx];
51346b82 1032
e19f3684 1033 hp = f1*vect[kipx] + f2*vect[kipy] + f3*vect[kipz];
1034
1035 rho1 = 1./rho;
1036 sint = TMath::Sin(tet);
1037 cost = 2.*TMath::Sin(khalf*tet)*TMath::Sin(khalf*tet);
1038
1039 g1 = sint*rho1;
1040 g2 = cost*rho1;
1041 g3 = (tet-sint) * hp*rho1;
1042 g4 = -cost;
1043 g5 = sint;
1044 g6 = cost * hp;
51346b82 1045
e19f3684 1046 vout[kix] = vect[kix] + g1*vect[kipx] + g2*hxp[0] + g3*f1;
1047 vout[kiy] = vect[kiy] + g1*vect[kipy] + g2*hxp[1] + g3*f2;
1048 vout[kiz] = vect[kiz] + g1*vect[kipz] + g2*hxp[2] + g3*f3;
51346b82 1049
e19f3684 1050 vout[kipx] = vect[kipx] + g4*vect[kipx] + g5*hxp[0] + g6*f1;
1051 vout[kipy] = vect[kipy] + g4*vect[kipy] + g5*hxp[1] + g6*f2;
1052 vout[kipz] = vect[kipz] + g4*vect[kipz] + g5*hxp[2] + g6*f3;
1053
1054 return;
1055}
1056
57ffa5fb 1057//______________________________________________________________________________
d810d0de 1058Int_t AliEveMUONTrack::ColorIndex(Float_t val)
e19f3684 1059{
1060 //
1061 // returns color index in the palette for a give value
1062 //
1063
1064 Float_t threshold = 0.0;
58e15fc1 1065 Float_t maxVal = 10.0;
e19f3684 1066
1067 Float_t div = TMath::Max(1, (Int_t)(maxVal - threshold));
1068 Int_t nCol = gStyle->GetNumberOfColors();
1069 Int_t cBin = (Int_t) TMath::Nint(nCol*(val - threshold)/div);
1070
1071 return gStyle->GetColorPalette(TMath::Min(nCol - 1, cBin));
1072
1073}
98d99a29 1074
1075//==============================================================================
1076// Temporary AliEveMUONTrackList
1077//==============================================================================
1078
1079//______________________________________________________________________________
1080void AliEveMUONTrackList::HackMomentumLimits(Bool_t recurse)
1081{
1082 // Find momentum limits from included tracks.
1083
1084 fLimPt = fLimP = 0;
1085
1086 for (List_i i=BeginChildren(); i!=EndChildren(); ++i)
1087 {
1088 TEveTrack* track = dynamic_cast<TEveTrack*>(*i);
1089 if (track)
1090 {
1091 fLimPt = TMath::Max(fLimPt, track->GetMomentum().Perp());
1092 fLimP = TMath::Max(fLimP, track->GetMomentum().Mag());
1093 }
1094 if (recurse)
1095 FindMomentumLimits(*i, recurse);
1096 }
1097
1098 fLimPt = RoundMomentumLimit(fLimPt);
1099 fLimP = RoundMomentumLimit(fLimP);
1100 if (fMaxPt == 0) fMaxPt = fLimPt;
1101 if (fMaxP == 0) fMaxP = fLimP;
1102}