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Added explicit base class declaration
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b48af428 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
88cb7938 16/* $Id$ */
61ab8ea8 17
af50998a 18// The purpose of this class is to permorm the ITS tracking. The
b48af428 19// constructor has the task to inizialize some private members. The method
20// DoTracking is written to be called by a macro. It gets the event number,
21// the minimum and maximum order number of TPC tracks that are to be tracked
22// trough the ITS, and the file where the recpoints are registered. The
23// method Recursivetracking is a recursive function that performs the
24// tracking trough the ITS The method Intersection found the layer, ladder
25// and detector whre the intersection take place and caluclate the
26// cohordinates of this intersection. It returns an integer that is 0 if the
27// intersection has been found successfully. The two mwthods Kalmanfilter
28// and kalmanfiltervert operate the kalmanfilter without and with the vertex
29// imposition respectively. The authors thank Mariana Bondila to have help
30// them to resolve some problems. July-2000
04b80329 31
4ae5bbc4 32#include <Riostream.h>
33#include <Riostream.h>
13888096 34#include <TMath.h>
13888096 35#include <TBranch.h>
36#include <TVector.h>
13888096 37#include <TFile.h>
38#include <TTree.h>
cbcfa38d 39#include <TStopwatch.h>
40
13888096 41#include "TParticle.h"
42#include "AliRun.h"
88cb7938 43#include "AliLoader.h"
13888096 44#include "AliITS.h"
04b80329 45#include "AliITSsegmentationSSD.h"
13888096 46#include "AliITSgeomSPD.h"
47#include "AliITSgeomSDD.h"
48#include "AliITSgeomSSD.h"
49#include "AliITSgeom.h"
13888096 50#include "AliITSRecPoint.h"
04b80329 51#include "stdlib.h"
13888096 52#include "AliKalmanTrack.h"
53#include "AliMagF.h"
04b80329 54#include "AliITSTrackV1.h"
55#include "AliITSIOTrack.h"
56#include "AliITSRad.h"
13888096 57#include "../TPC/AliTPCtracker.h"
13888096 58#include "AliITSTrackerV1.h"
0983ac5b 59#include "AliITSVertex.h"
def162f4 60#include "AliITSPid.h"
13888096 61
13888096 62ClassImp(AliITSTrackerV1)
55cd883f 63 //______________________________________________________________________
64AliITSTrackerV1::AliITSTrackerV1() {
65 //Default constructor
66 fITS = 0;
67 fresult = 0;
64ab0d55 68 fPtref=0.;
69 fChi2max=0.;
70 //fepsphi=0.;
71 //fepsz=0.;
55cd883f 72 frecPoints = 0;
73 fvettid = 0;
64ab0d55 74 fflagvert=0;
55cd883f 75 frl = 0;
64ab0d55 76 Int_t ia;
77 for(ia=0; ia<6; ia++) {
78 fNlad[ia]=0;
79 fNdet[ia]=0;
80 fAvrad[ia]=0.;
81 fDetx[ia]=0.;
82 fDetz[ia]=0.;
83 } // end for ia
55cd883f 84 fzmin = 0;
85 fzmax = 0;
86 fphimin = 0;
87 fphimax = 0;
88 fphidet = 0;
64ab0d55 89 fNRecPoints=0;
90 fRecCylR=0;
91 fRecCylPhi=0;
92 fRecCylZ=0;
93 fFieldFactor=0;
55cd883f 94}
b48af428 95//______________________________________________________________________
64ab0d55 96AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS, Int_t evnumber, Bool_t flag) {
b48af428 97 //Origin A. Badala' and G.S. Pappalardo:
98 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
99 // Class constructor. It does some initializations.
100
a49bb2c8 101 //PH Initialisation taken from the default constructor
b48af428 102 fITS = IITTSS;
a49bb2c8 103 fresult = 0;
64ab0d55 104 fPtref = 0.;
105 fChi2max =0.;
106 frecPoints = 0;
a49bb2c8 107 fvettid = 0;
64ab0d55 108 fflagvert = flag;
a49bb2c8 109 frl = 0;
110 fzmin = 0;
111 fzmax = 0;
112 fphimin = 0;
113 fphimax = 0;
114 fphidet = 0;
64ab0d55 115
b48af428 116 Int_t imax = 200,jmax = 450;
117 frl = new AliITSRad(imax,jmax);
118
119 ////////// gets information on geometry /////////////////////////////
64ab0d55 120 AliITSgeom *g1 = fITS->GetITSgeom();
b48af428 121 Int_t ll=1, dd=1;
122 TVector det(9);
123
b48af428 124 Int_t ia;
125 for(ia=0; ia<6; ia++) {
126 fNlad[ia]=g1->GetNladders(ia+1);
127 fNdet[ia]=g1->GetNdetectors(ia+1);
128 //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n";
129 } // end for ia
b48af428 130
64ab0d55 131 //cout<<" mean radius = ";
b48af428 132 Int_t ib;
133 for(ib=0; ib<6; ib++) {
134 g1->GetCenterThetaPhi(ib+1,ll,dd,det);
135 Double_t r1=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
136 g1->GetCenterThetaPhi(ib+1,ll,dd+1,det);
137 Double_t r2=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
138 fAvrad[ib]=(r1+r2)/2.;
139 //cout<<fAvrad[ib]<<" ";
140 } // end for ib
141 //cout<<"\n"; getchar();
142
143 fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
144 fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz();
145
146 fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx();
147 fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz();
148
149 fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
150 fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz();
151
152 fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx();
153 fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz();
154
155 fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
156 fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz();
157
158 fDetx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx();
159 fDetz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz();
160 //cout<<" Detx Detz\n";
161 //for(Int_t la=0; la<6; la++) cout<<" "<<fDetx[la]<<" "<<
162 // fDetz[la]<<endl;
163 //getchar();
64ab0d55 164
b48af428 165 // allocate memory and define matrices fzmin, fzmax, fphimin and fphimax //
166 Double_t epsz=1.2;
167 Double_t epszdrift=0.05;
168
169 fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
170 Int_t im1, im2, im2max;
171 for(im1=0; im1<6; im1++) {
172 im2max=fNdet[im1];
173 fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
174 } // end for im1
175
176 for(im1=0; im1<6; im1++) {
177 im2max=fNdet[im1];
178 for(im2=0; im2<im2max; im2++) {
179 g1->GetCenterThetaPhi(im1+1,1,im2+1,det);
180 if(im2!=0) fzmin[im1][im2]=det(2)-fDetz[im1];
181 else
182 fzmin[im1][im2]=det(2)-(fDetz[im1])*epsz;
183 if(im2!=(im2max-1)) fzmax[im1][im2]=det(2)+fDetz[im1];
184 else
cbcfa38d 185 fzmax[im1][im2]=det(2)+fDetz[im1]*epsz;
b48af428 186 if(im1==2 || im1==3) {
187 fzmin[im1][im2]-=epszdrift;
188 fzmax[im1][im2]+=epszdrift;
189 } // end if im1==2 || im1==3
190 } // end for im2
191 } // end for im1
13888096 192
b48af428 193 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
194 for(im1=0;im1<6;im1++) {
195 im2max=fNlad[im1];
196 fphimin[im1] = new Double_t[im2max];
197 fphimax[im1] = new Double_t[im2max];
198 } // end for im1
199
200 fphidet = new Double_t*[6];
201 for(im1=0; im1<6; im1++) {
202 im2max=fNlad[im1];
203 fphidet[im1] = new Double_t[im2max];
204 } // end for im1
205
def162f4 206 Double_t global[3],local[3];
b48af428 207 Double_t pigre=TMath::Pi();
208 Double_t xmin,ymin,xmax,ymax;
209
210 for(im1=0; im1<6; im1++) {
211 im2max=fNlad[im1];
212 for(im2=0; im2<im2max; im2++) {
213 Int_t idet=2;
214 g1->GetCenterThetaPhi(im1+1,im2+1,idet,det);
215 fphidet[im1][im2] = TMath::ATan2(Double_t(det(1)),
216 Double_t(det(0)));
217 if(fphidet[im1][im2]<0.) fphidet[im1][im2]+=2.*pigre;
218 local[1]=local[2]=0.;
219 local[0]= -(fDetx[im1]);
220 if(im1==0) local[0]= (fDetx[im1]); //to take into account
221 // different reference system
222 g1->LtoG(im1+1,im2+1,idet,local,global);
223 xmax=global[0]; ymax=global[1];
224 local[0]= (fDetx[im1]);
225 if(im1==0) local[0]= -(fDetx[im1]);//take into account different
226 // reference system
227 g1->LtoG(im1+1,im2+1,idet,local,global);
228 xmin=global[0]; ymin=global[1];
229 fphimin[im1][im2]= TMath::ATan2(ymin,xmin);
230 if(fphimin[im1][im2]<0.) fphimin[im1][im2]+=2.*pigre;
231 fphimax[im1][im2]= TMath::ATan2(ymax,xmax);
232 if(fphimax[im1][im2]<0.) fphimax[im1][im2]+=2.*pigre;
233 } // end for im2
234 } // end for im1
64ab0d55 235//////////////////////////////////////////////////////////////////////////////////////////////////////////
236/////////////// allocate memory and define vector fNRecPoints and matrices fRecCylR, fRecCylPhi, fRecCylZ /////////////
237 gAlice->GetEvent(evnumber);
238 Int_t NumOfModules = g1->GetIndexMax();
64ab0d55 239 fRecCylR = new Double_t *[NumOfModules];
64ab0d55 240 fRecCylPhi = new Double_t *[NumOfModules];
64ab0d55 241 fRecCylZ = new Double_t *[NumOfModules];
242 AliITSRecPoint *recp;
243 fNRecPoints = new Int_t[NumOfModules];
244
245 for(Int_t module=0; module<NumOfModules; module++) {
246 fITS->ResetRecPoints();
247 gAlice->TreeR()->GetEvent(module);
248 frecPoints=fITS->RecPoints();
249 Int_t nRecPoints=fNRecPoints[module]=frecPoints->GetEntries();
64ab0d55 250 fRecCylR[module] = new Double_t[nRecPoints];
251 fRecCylPhi[module] = new Double_t[nRecPoints];
252 fRecCylZ[module] = new Double_t[nRecPoints];
253 Int_t ind;
254 for(ind=0; ind<fNRecPoints[module]; ind++) {
255 recp=(AliITSRecPoint*)frecPoints->UncheckedAt(ind);
256 // Float_t global[3], local[3];
257 Double_t global[3], local[3];
258 local[0]=recp->GetX();
259 local[1]=0.;
260 local[2]= recp->GetZ();
261 g1->LtoG(module,local,global);
64ab0d55 262
263 Double_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit
264 Double_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit
def162f4 265 Double_t z = global[2]; // z hit
64ab0d55 266
267 fRecCylR[module][ind]=r;
268 fRecCylPhi[module][ind]=phi;
269 fRecCylZ[module][ind]=z;
270 }
271 }
272 //}
273 //}
274////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
275
b48af428 276
277 ////////// gets magnetic field factor //////////////////////////////
278
279 AliMagF * fieldPointer = gAlice->Field();
af50998a 280 // fFieldFactor = (Double_t)fieldPointer->Factor();
281 fFieldFactor =(Double_t)fieldPointer-> SolenoidField()/10/.2;
282 // cout<< " field factor = "<<fFieldFactor<<"\n"; getchar();
b48af428 283}
284//______________________________________________________________________
d0df5576 285AliITSTrackerV1::AliITSTrackerV1(const AliITSTrackerV1 &cobj) : TObject(cobj) {
b48af428 286 // Origin A. Badala' and G.S. Pappalardo:
287 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
288 // copy constructor
64ab0d55 289
290 *fITS = *cobj.fITS;
b48af428 291 *fresult = *cobj.fresult;
292 fPtref = cobj.fPtref;
293 fChi2max = cobj.fChi2max;
294 **fvettid = **cobj.fvettid;
295 fflagvert = cobj.fflagvert;
296 Int_t imax=200,jmax=450;
297 frl = new AliITSRad(imax,jmax);
298 *frl = *cobj.frl;
299 fFieldFactor = cobj.fFieldFactor;
300 Int_t i,im1,im2,im2max;
301 for(i=0; i<6; i++) {
302 fNlad[i] = cobj.fNlad[i];
303 fNdet[i] = cobj.fNdet[i];
304 fAvrad[i] = cobj.fAvrad[i];
305 fDetx[i] = cobj.fDetx[i];
306 fDetz[i] = cobj.fDetz[i];
307 } // end or i
308 fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
309 for(im1=0; im1<6; im1++) {
310 im2max=fNdet[im1];
311 fzmin[im1] = new Double_t[im2max];
312 fzmax[im1] = new Double_t[im2max];
313 } // end for im1
cbcfa38d 314 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
b48af428 315 for(im1=0;im1<6;im1++) {
316 im2max=fNlad[im1];
317 fphimin[im1] = new Double_t[im2max];
318 fphimax[im1] = new Double_t[im2max];
319 } // end for im1
320
321 fphidet = new Double_t*[6];
322 for(im1=0; im1<6; im1++) {
323 im2max=fNlad[im1];
324 fphidet[im1] = new Double_t[im2max];
325 } // end for im1
326 for(im1=0; im1<6; im1++) {
327 im2max=fNdet[im1];
328 for(im2=0; im2<im2max; im2++) {
329 fzmin[im1][im2]=cobj.fzmin[im1][im2];
330 fzmax[im1][im2]=cobj.fzmax[im1][im2];
331 } // end for im2
332 } // end for im1
333 for(im1=0; im1<6; im1++) {
334 im2max=fNlad[im1];
335 for(im2=0; im2<im2max; im2++) {
336 fphimin[im1][im2]=cobj.fphimin[im1][im2];
337 fphimax[im1][im2]=cobj.fphimax[im1][im2];
338 fphidet[im1][im2]=cobj.fphidet[im1][im2];
339 } // end for im2
340 } // end for im2
64ab0d55 341
342
343 AliITSgeom *g1 = fITS->GetITSgeom();
344 Int_t NumOfModules = g1->GetIndexMax();
345 /*
346 fRecCylR = new Float_t *[NumOfModules];
347 fRecCylPhi = new Float_t *[NumOfModules];
348 fRecCylZ = new Float_t *[NumOfModules];
349 */
350 fRecCylR = new Double_t *[NumOfModules];
351 fRecCylPhi = new Double_t *[NumOfModules];
352 fRecCylZ = new Double_t *[NumOfModules];
353 fNRecPoints = new Int_t[NumOfModules];
354 for(Int_t module=0; module<NumOfModules; module++) {
355 Int_t nRecPoints=fNRecPoints[module]=cobj.fNRecPoints[module];
356 /*
357 fRecCylR[module] = new Float_t[nRecPoints];
358 fRecCylPhi[module] = new Float_t[nRecPoints];
359 fRecCylZ[module] = new Float_t[nRecPoints];
360 */
361 fRecCylR[module] = new Double_t[nRecPoints];
362 fRecCylPhi[module] = new Double_t[nRecPoints];
363 fRecCylZ[module] = new Double_t[nRecPoints];
364 Int_t ind;
365 for(ind=0; ind<nRecPoints; ind++) {
366 fRecCylR[module][ind]=cobj.fRecCylR[module][ind];
367 fRecCylPhi[module][ind]=cobj.fRecCylPhi[module][ind];
368 fRecCylZ[module][ind]=cobj.fRecCylZ[module][ind];
369 }
370 }
371
372}
373void AliITSTrackerV1::DelMatrix(Int_t NumOfModules) {
374 for(Int_t mod=0; mod<NumOfModules; mod++) {
375 delete fRecCylR[mod];
376 delete fRecCylPhi[mod];
377 delete fRecCylZ[mod];
378 }
379 delete fRecCylR;
380 delete fRecCylPhi;
381 delete fRecCylZ;
cbcfa38d 382}
b48af428 383//______________________________________________________________________
cbcfa38d 384AliITSTrackerV1::~AliITSTrackerV1(){
b48af428 385 // Origin A. Badala' and G.S. Pappalardo:
386 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
64ab0d55 387 // class destructor
388 delete frl;
389 delete fNRecPoints;
390 for(Int_t i=0; i<6; i++) {
391 delete fzmin[i];
392 delete fzmax[i];
393 delete fphimin[i];
394 delete fphimax[i];
395 delete fphidet[i];
396 }
397
398 delete fzmin;
399 delete fzmax;
400 delete fphimin;
401 delete fphimax;
402 delete fphidet;
403
13888096 404}
b48af428 405//______________________________________________________________________
04b80329 406AliITSTrackerV1 &AliITSTrackerV1::operator=(AliITSTrackerV1 obj) {
b48af428 407 // Origin A. Badala' and G.S. Pappalardo:
408 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
409 // assignement operator
410
64ab0d55 411 *fITS = *obj.fITS;
b48af428 412 *fresult = *obj.fresult;
413 fPtref = obj.fPtref;
414 fChi2max = obj.fChi2max;
415 **fvettid = **obj.fvettid;
416 fflagvert = obj.fflagvert;
417 Int_t imax=200,jmax=450;
418 frl = new AliITSRad(imax,jmax);
419 *frl = *obj.frl;
420 fFieldFactor = obj.fFieldFactor;
421 Int_t i;
422 for(i=0; i<6; i++) {
423 fNlad[i] = obj.fNlad[i];
424 fNdet[i] = obj.fNdet[i];
425 fAvrad[i] = obj.fAvrad[i];
426 fDetx[i] = obj.fDetx[i];
427 fDetz[i] = obj.fDetz[i];
428 } // end for i
429 fzmin = new Double_t*[6];
430 fzmax = new Double_t*[6];
431 Int_t im1, im2, im2max;
432 for(im1=0; im1<6; im1++) {
433 im2max=fNdet[im1];
434 fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
435 } // end for im1
cbcfa38d 436 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
b48af428 437 for(im1=0;im1<6;im1++) {
438 im2max=fNlad[im1];
439 fphimin[im1] = new Double_t[im2max];
440 fphimax[im1] = new Double_t[im2max];
441 } // end for im1
442
443 fphidet = new Double_t*[6];
444 for(im1=0; im1<6; im1++) {
445 im2max=fNlad[im1];
446 fphidet[im1] = new Double_t[im2max];
447 } // end for im1
448 for(im1=0; im1<6; im1++) {
449 im2max=fNdet[im1];
450 for(im2=0; im2<im2max; im2++) {
451 fzmin[im1][im2]=obj.fzmin[im1][im2];
452 fzmax[im1][im2]=obj.fzmax[im1][im2];
453 } // end for im2
454 } // end for im1
455 for(im1=0; im1<6; im1++) {
456 im2max=fNlad[im1];
457 for(im2=0; im2<im2max; im2++) {
458 fphimin[im1][im2]=obj.fphimin[im1][im2];
459 fphimax[im1][im2]=obj.fphimax[im1][im2];
460 fphidet[im1][im2]=obj.fphidet[im1][im2];
461 } // end for im2
462 } // end for im1
463
64ab0d55 464 AliITSgeom *g1 = fITS->GetITSgeom();
465 Int_t NumOfModules = g1->GetIndexMax();
64ab0d55 466 fRecCylR = new Double_t *[NumOfModules];
467 fRecCylPhi = new Double_t *[NumOfModules];
468 fRecCylZ = new Double_t *[NumOfModules];
469 fNRecPoints = new Int_t[NumOfModules];
470 for(Int_t module=0; module<NumOfModules; module++) {
471 Int_t nRecPoints=fNRecPoints[module]=obj.fNRecPoints[module];
64ab0d55 472 fRecCylR[module] = new Double_t[nRecPoints];
473 fRecCylPhi[module] = new Double_t[nRecPoints];
474 fRecCylZ[module] = new Double_t[nRecPoints];
475 Int_t ind;
476 for(ind=0; ind<nRecPoints; ind++) {
477 fRecCylR[module][ind]=obj.fRecCylR[module][ind];
478 fRecCylPhi[module][ind]=obj.fRecCylPhi[module][ind];
479 fRecCylZ[module][ind]=obj.fRecCylZ[module][ind];
480 }
481 }
482
483
b48af428 484 return *this;
04b80329 485}
b48af428 486//______________________________________________________________________
487void AliITSTrackerV1::DoTracking(Int_t evNumber,Int_t minTr,Int_t maxTr,
61231d74 488 TFile *file, Bool_t realmass) {
b48af428 489 // Origin A. Badala' and G.S. Pappalardo:
490 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
491 // The method needs the event number, the minimum and maximum order
492 // number of TPC tracks that
493 // are to be tracked trough the ITS, and the file where the recpoints
494 // are registered.
495 // The method can be called by a macro. It preforms the tracking for
496 // all good TPC tracks
497
498 printf("begin DoTracking - file %p\n",file);
499
500 gAlice->GetEvent(evNumber); //modificato per gestire hbt
13888096 501
88b5be23 502 AliKalmanTrack::SetConvConst(1000/0.299792458/gAlice->Field()->SolenoidField());
af50998a 503 // cout<<" field = "<<gAlice->Field()->SolenoidField()<<endl;
504
b48af428 505
506 TFile *cf=TFile::Open("AliTPCclusters.root");
9040b789 507 AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60_150x60");
b48af428 508 if (!digp) { cerr<<"TPC parameters have not been found !\n"; getchar();}
509
510 cf->cd();
88cb7938 511 TString foldname(fITS->GetLoader()->GetEventFolder()->GetName());
512
c630aafd 513 printf("This method is not converted to the NewIO !\n"); //I.B.
514 return; //I.B.
515 AliTPCtracker *tracker = new AliTPCtracker(digp); //I.B.
88cb7938 516 //PH tracker->SetEventNumber(evNumber); //I.B.
b48af428 517
518 // Load clusters
c630aafd 519 printf("This method is not converted to the NewIO !\n"); //I.B.
520 return; //I.B.
521 tracker->LoadClusters(0); //I.B.
b48af428 522
523 // Load tracks
64ab0d55 524 TFile *tf=TFile::Open("AliTPCtracksSorted.root");
b48af428 525 if (!tf->IsOpen()) {
526 cerr<<"Can't open AliTPCtracksSorted.root !\n";
527 return ;
528 } // end if
529 TObjArray tracks(200000);
530 char tname[100];
531 sprintf(tname,"TreeT_TPC_%d",evNumber);
532
533 TTree *tracktree=(TTree*)tf->Get(tname);
534 if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n";}
535 TBranch *tbranch=tracktree->GetBranch("tracks");
536 Int_t nentr=(Int_t)tracktree->GetEntries();
537 Int_t kk;
538
def162f4 539 AliITSRecPoint *recp; // oggi
540 AliTPCtrack *ioTrackTPC=0;
b48af428 541 for (kk=0; kk<nentr; kk++) {
542 ioTrackTPC=new AliTPCtrack;
543 tbranch->SetAddress(&ioTrackTPC);
544 tracktree->GetEvent(kk);
545 tracker->CookLabel(ioTrackTPC,0.1);
546 tracks.AddLast(ioTrackTPC);
547 } // end for kk
548 delete tracker;
549 tf->Close();
550
551 Int_t nt = tracks.GetEntriesFast();
552 cerr<<"Number of found tracks "<<nt<<endl;
553
554 TVector vec(5);
555 TTree *tr=gAlice->TreeR();
556 Int_t nent=(Int_t)tr->GetEntries();
557 frecPoints = fITS->RecPoints();
558
559 Int_t numbpoints;
560 Int_t totalpoints=0;
561 Int_t *np = new Int_t[nent];
562 fvettid = new Int_t* [nent];
563 Int_t mod;
564
565 for (mod=0; mod<nent; mod++) {
566 fvettid[mod]=0;
567 fITS->ResetRecPoints();
568 gAlice->TreeR()->GetEvent(mod);
569 numbpoints = frecPoints->GetEntries();
570 totalpoints+=numbpoints;
571 np[mod] = numbpoints;
572 //cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n";getchar();
573 fvettid[mod] = new Int_t[numbpoints];
574 Int_t ii;
575 for (ii=0;ii<numbpoints; ii++) *(fvettid[mod]+ii)=0;
576 } // end for mod
577
578 AliTPCtrack *track=0;
579
580 if(minTr < 0) {minTr = 0; maxTr = nt-1;}
581
582 TVector vgeant(3);
583
584 TTree tracktree1("TreeT","Tree with ITS tracks");
585 AliITSIOTrack *ioTrack=0;
def162f4 586 AliITSPid *pid=new AliITSPid(1000); // oggi
587
b48af428 588 tracktree1.Branch("ITStracks","AliITSIOTrack",&ioTrack,32000,0);
589
def162f4 590 TDatabasePDG * db = new TDatabasePDG;
61231d74 591
b48af428 592 Int_t j;
593 for (j=minTr; j<=maxTr; j++) {
594 track=(AliTPCtrack*)tracks.UncheckedAt(j);
595 if (!track) continue;
61231d74 596
597 /// mass definition ////////////////////////
598 Double_t mass=0.13956995;
599 Int_t pcode=211; // a pion by default
def162f4 600
61231d74 601 if(realmass) {
def162f4 602 if(TMath::Abs(pcode)<20443) mass=db->GetParticle(pcode)->Mass();
61231d74 603 }
def162f4 604 else {
605 mass = track->GetMass();
e286bade 606// cout << "Mass = " << mass << endl;
def162f4 607 }
608
61231d74 609
610
d3ab000e 611 // new propagation to the end of TPC
64ab0d55 612 Double_t xk=80.;
613 // track->PropagateTo(xk,0.,0.); //Ne if it's still there //attenzione funziona solo se modifica in TPC
614 // Double_t xk=77.415;
d3ab000e 615 track->PropagateTo(xk, 28.94, 1.204e-3);
616 xk-=0.005;
617 track->PropagateTo(xk, 44.77,1.71); //Tedlar
618 xk-=0.02;
619 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
620 xk-=2.0;
621 track->PropagateTo(xk, 41.28, 0.029);//Nomex
622 xk-=0.02;
623 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
624 xk-=0.005;
625 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
626
627 xk=61.;
64ab0d55 628 // track->PropagateTo(xk,0.,0.); //C02
629 track->PropagateTo(xk,36.2,1.98e-3); //C02 //attenzione funziona solo se modifica in TPC
d3ab000e 630
631 xk -=0.005;
632 track->PropagateTo(xk, 24.01, 2.7); //Al
633 xk -=0.005;
634 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
635 xk -=0.02;
636 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
637 xk -=0.5;
638 track->PropagateTo(xk, 41.28, 0.029); //Nomex
639 xk -=0.02;
640 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
641 xk -=0.005;
642 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
643 xk -=0.005;
64ab0d55 644 track->PropagateTo(xk, 24.01, 2.7); //Al
af50998a 645
64ab0d55 646 ////////////////////////////////////////////////////////////////////////////////////////////////////////
af50998a 647 //AliITSTrackV1 trackITS(*track);
648 AliITSTrackV1 trackITS(*track, fFieldFactor);
649 //cout<<" fFieldFactor = "<<fFieldFactor<<"\n";
61231d74 650 trackITS.PutMass(mass); //new to add mass to track
b48af428 651 if(fresult){ delete fresult; fresult=0;}
652 fresult = new AliITSTrackV1(trackITS);
653
654 AliITSTrackV1 primaryTrack(trackITS);
655 vgeant=(*fresult).GetVertex();
656
657 // Definition of dv and zv for vertex constraint
658 Double_t sigmaDv=0.0050; Double_t sigmaZv=0.010;
659 //Double_t sigmaDv=0.0015; Double_t sigmaZv=0.0015;
13888096 660 Double_t uniform= gRandom->Uniform();
661 Double_t signdv;
662 if(uniform<=0.5) signdv=-1.;
b48af428 663 else
664 signdv=1.;
665
04b80329 666 Double_t vr=TMath::Sqrt(vgeant(0)*vgeant(0)+ vgeant(1)*vgeant(1));
b48af428 667 Double_t dv=gRandom->Gaus(signdv*vr,(Float_t)sigmaDv);
668 Double_t zv=gRandom->Gaus(vgeant(2),(Float_t)sigmaZv);
669 //cout<<" Dv e Zv = "<<dv<<" "<<zv<<"\n";
670 trackITS.SetDv(dv);
671 trackITS.SetZv(zv);
672 trackITS.SetsigmaDv(sigmaDv);
673 trackITS.SetsigmaZv(sigmaZv);
674 (*fresult).SetDv(dv);
675 (*fresult).SetZv(zv);
676 (*fresult).SetsigmaDv(sigmaDv);
677 (*fresult).SetsigmaZv(sigmaZv);
678 primaryTrack.SetDv(dv);
679 primaryTrack.SetZv(zv);
680 primaryTrack.SetsigmaDv(sigmaDv);
681 primaryTrack.SetsigmaZv(sigmaZv);
088e0b8d 682 primaryTrack.PrimaryTrack();
b48af428 683 TVector d2=primaryTrack.Getd2();
684 TVector tgl2=primaryTrack.Gettgl2();
685 TVector dtgl=primaryTrack.Getdtgl();
686 trackITS.Setd2(d2); trackITS.Settgl2(tgl2);
687 trackITS.Setdtgl(dtgl);
688 (*fresult).Setd2(d2); (*fresult).Settgl2(tgl2);
689 (*fresult).Setdtgl(dtgl);
690 /*
691 trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex);
692 (*result).SetVertex(vertex); (*result).SetErrorVertex(ervertex);
693 */
694 TList *list= new TList();
695
696 list->AddLast(&trackITS);
697
698 fPtref=TMath::Abs( (trackITS).GetPt() );
af50998a 699 //cout<<" fPtref = " <<fPtref<<"\n";
b48af428 700 if(fPtref>1.0) fChi2max=40.;
701 if(fPtref<=1.0) fChi2max=20.;
702 if(fPtref<0.4 ) fChi2max=100.;
703 if(fPtref<0.2 ) fChi2max=40.;
704 // if(fPtref<0.4 ) fChi2max=30.;
705 // if(fPtref<0.2 ) fChi2max=20.;
706 //if(fPtref<0.2 ) fChi2max=10.;
707 //if(fPtref<0.1 ) fChi2max=5.;
c57de405 708 //cout << "\n Pt = " << fPtref <<"\n"; //stampa
b48af428 709 RecursiveTracking(list);
710 list->Delete();
711 delete list;
712
713 Int_t itot=-1;
714 TVector vecTotLabRef(18);
715 Int_t lay, k;
716 for(lay=5; lay>=0; lay--) {
717 TVector vecLabRef(3);
718 vecLabRef=(*fresult).GetLabTrack(lay);
719 Float_t clustZ=(*fresult).GetZclusterTrack( lay);
720 for(k=0; k<3; k++){
04b80329 721 Int_t lpp=(Int_t)vecLabRef(k);
722 if(lpp>=0) {
b48af428 723 TParticle *p=(TParticle*) gAlice->Particle(lpp);
724 Int_t pcode=p->GetPdgCode();
725 if(pcode==11) vecLabRef(k)=p->GetFirstMother();
726 } // end if
727 itot++; vecTotLabRef(itot)=vecLabRef(k);
64ab0d55 728 if(vecLabRef(k)==0. && clustZ == -1.) vecTotLabRef(itot) =-3.;
b48af428 729 } // end for k
730 } // end for lay
731 Long_t labref;
732 Int_t freq;
733 (*fresult).Search(vecTotLabRef, labref, freq);
734
735 //if(freq < 6) labref=-labref; // cinque - sei
736 if(freq < 5) labref=-labref; // cinque - sei
737 (*fresult).SetLabel(labref);
738
739 // cout<<" progressive track number = "<<j<<"\r";
740 // cout<<j<<"\r";
741 Int_t numOfCluster=(*fresult).GetNumClust();
c57de405 742 //cout<<" progressive track number = "<<j<<"\n"; // stampa
b48af428 743 Long_t labITS=(*fresult).GetLabel();
c57de405 744 //cout << " ITS track label = " << labITS << "\n"; // stampa
b48af428 745 Int_t lab=track->GetLabel();
c57de405 746 //cout << " TPC track label = " << lab <<"\n"; // stampa
b48af428 747 //propagation to vertex
748
749 Double_t rbeam=3.;
def162f4 750 if((*fresult).DoNotCross(rbeam)) continue; //no intersection with beampipe
b48af428 751 (*fresult).Propagation(rbeam);
752 Double_t c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44;
753 (*fresult).GetCElements(c00,
754 c10,c11,
755 c20,c21,c22,
756 c30,c31,c32,c33,
757 c40,c41,c42,c43,c44);
13888096 758
b48af428 759 Double_t pt=TMath::Abs((*fresult).GetPt());
760 Double_t dr=(*fresult).GetD();
761 Double_t z=(*fresult).GetZ();
762 Double_t tgl=(*fresult).GetTgl();
763 Double_t c=(*fresult).GetC();
764 Double_t cy=c/2.;
765 Double_t dz=z-(tgl/cy)*TMath::ASin((*fresult).Arga(rbeam));
766 dz-=vgeant(2);
767 // cout<<" dr e dz alla fine = "<<dr<<" "<<dz<<"\n"; getchar();
768 Double_t phi=(*fresult).Getphi();
769 Double_t phivertex = phi - TMath::ASin((*fresult).ArgA(rbeam));
770 Double_t duepi=2.*TMath::Pi();
771 if(phivertex>duepi) phivertex-=duepi;
772 if(phivertex<0.) phivertex+=duepi;
773 /////////////////////////////////////////////////////////////
774 Int_t idmodule,idpoint;
775 if(numOfCluster >=5) { // cinque - sei
776 //if(numOfCluster ==6) { // cinque - sei
777 AliITSIOTrack outTrack;
778 ioTrack=&outTrack;
779 ioTrack->SetStatePhi(phi);
780 ioTrack->SetStateZ(z);
781 ioTrack->SetStateD(dr);
782 ioTrack->SetStateTgl(tgl);
783 ioTrack->SetStateC(c);
784 Double_t radius=(*fresult).Getrtrack();
785 ioTrack->SetRadius(radius);
786 Int_t charge;
787 if(c>0.) charge=-1; else charge=1;
788 ioTrack->SetCharge(charge);
def162f4 789 Double_t trackmass=(*fresult).GetMass(); // oggi
790 ioTrack->SetMass(trackmass); // oggi
b48af428 791 ioTrack->SetCovMatrix(c00,
792 c10,c11,
793 c20,c21,c22,
794 c30,c31,c32,c33,
795 c40,c41,c42,c43,c44);
796 Double_t px=pt*TMath::Cos(phivertex);
797 Double_t py=pt*TMath::Sin(phivertex);
798 Double_t pz=pt*tgl;
799 Double_t xtrack=dr*TMath::Sin(phivertex);
800 Double_t ytrack=dr*TMath::Cos(phivertex);
801 Double_t ztrack=dz+vgeant(2);
802 ioTrack->SetPx(px);
803 ioTrack->SetPy(py);
804 ioTrack->SetPz(pz);
805 ioTrack->SetX(xtrack);
806 ioTrack->SetY(ytrack);
807 ioTrack->SetZ(ztrack);
808 ioTrack->SetLabel(labITS);
809 ioTrack->SetTPCLabel(lab);
61231d74 810 ioTrack->SetDz(dz);
b48af428 811 Int_t il;
def162f4 812 /*
813 for(il=0;il<6; il++){
b48af428 814 ioTrack->SetIdPoint(il,(*fresult).GetIdPoint(il));
815 ioTrack->SetIdModule(il,(*fresult).GetIdModule(il));
816 } // end for il
def162f4 817 */
818 //tracktree1.Fill();
819 Float_t q[4]={-1.,-1.,-1.,-1.};
820 Float_t globaldedx=0.;
b48af428 821 for (il=0;il<6;il++) {
822 idpoint=(*fresult).GetIdPoint(il);
823 idmodule=(*fresult).GetIdModule(il);
61231d74 824 if(idmodule>0.) *(fvettid[idmodule]+idpoint)=1;
825
b48af428 826 ioTrack->SetIdPoint(il,idpoint);
827 ioTrack->SetIdModule(il,idmodule);
def162f4 828 //// for q definition
829 if(il>1){
830 if(idmodule>0.){
831 fITS->ResetRecPoints();
832 gAlice->TreeR()->GetEvent(idmodule);
833 recp=(AliITSRecPoint*)frecPoints->UncheckedAt(idpoint);
834 q[il-2]=recp->GetQ()*(*fresult).Getfcor(il-2);
835 }
836 }
837 } // end for il
838 q[0]/=280.; q[1]/=280.;
839 q[2]/=38.; q[3]/=38.;
840
841 // cout<<" q prima = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
842
843 Int_t swap;
844 do{
845 swap=0;
846 for (il=0; il<3; il++) {
847 if (q[il]<=q[il+1]) continue;
848 Float_t tmp=q[il];
849 q[il]=q[il+1]; q[il+1]=tmp;
850 swap++;
851 }
852 } while(swap);
853
854
855 // cout<<" q dopo = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
856
857 if(q[0]<0.) {
858 q[0]=q[1];
859 q[1]=q[2];
860 q[2]=q[3];
861 q[3]=-1.;
862 }
863
864 // cout<<" q dopo if = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
865
866 globaldedx=(q[0]+q[1])/2.;
867
868 // if(q[3]> 0.) globaldedx=(q[0]+q[1]+q[2]+q[3])/4.;
869 // else globaldedx=(q[0]+q[1]+q[2])/3.;
870
871 ioTrack->SetdEdx(globaldedx);
872 ioTrack->SetPid(pid->GetPcode(ioTrack));
873
874 tracktree1.Fill();
b48af428 875 } // end if on numOfCluster
876 //gObjectTable->Print(); // stampa memoria
877 } // end for (int j=minTr; j<=maxTr; j++)
61231d74 878 delete db;
b48af428 879 static Bool_t first=kTRUE;
880 static TFile *tfile;
881 if(first) {
882 tfile=new TFile("itstracks.root","RECREATE");
883 //cout<<"I have opened itstracks.root file "<<endl;
884 } // end if
885 first=kFALSE;
886 tfile->cd();
887 tfile->ls();
888 char hname[30];
889 sprintf(hname,"TreeT%d",evNumber);
def162f4 890 cout << "Number of saved ITS tracks " << tracktree1.GetEntries() << endl;
b48af428 891 tracktree1.Write(hname);
892
893 TTree *fAli=gAlice->TreeK();
894 TFile *fileAli=0;
895 if (fAli) fileAli =fAli->GetCurrentFile();
896 fileAli->cd();
897 ////////////////////////////////////////////////////////////////////
898
899 printf("delete vectors\n");
900 if(np) delete [] np;
901 if(fvettid) delete [] fvettid;
902 if(fresult) {delete fresult; fresult=0;}
04b80329 903}
b48af428 904//______________________________________________________________________
04b80329 905void AliITSTrackerV1::RecursiveTracking(TList *trackITSlist) {
b48af428 906 // This function perform the recursive tracking in ITS detectors
907 // reference is a pointer to the final best track
908 // Origin A. Badala' and G.S. Pappalardo:
909 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
910 // The authors thank Mariana Bondila to have help them to resolve some
911 // problems. July-2000
912
913 //Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9;
914 // Rlayer[3]=23.8; Rlayer[4]=39.1; Rlayer[5]=43.6; //vecchio
915
916 //////////////////////
917 Float_t sigmaphil[6], sigmazl[6];
918 sigmaphil[0]=1.44e-6/(fAvrad[0]*fAvrad[0]);
919 sigmaphil[1]=1.44e-6/(fAvrad[1]*fAvrad[1]);
920 sigmaphil[2]=1.444e-5/(fAvrad[2]*fAvrad[2]);
921 sigmaphil[3]=1.444e-5/(fAvrad[3]*fAvrad[3]);
922 sigmaphil[4]=4e-6/(fAvrad[4]*fAvrad[4]);
923 sigmaphil[5]=4e-6/(fAvrad[5]*fAvrad[5]);
924 sigmazl[0]=1e-2;
925 sigmazl[1]=1e-2;
926 sigmazl[2]=7.84e-4;
927 sigmazl[3]=7.84e-4;
928 sigmazl[4]=0.6889;
929 sigmazl[5]=0.6889;
930 ///////////////////////////////////////////////////////////
931 Int_t index;
932 AliITSgeom *g1 = fITS->GetITSgeom();
933 AliITSRecPoint *recp;
934 for(index =0; index<trackITSlist->GetSize(); index++) {
935 AliITSTrackV1 *trackITS = (AliITSTrackV1 *) trackITSlist->At(index);
936 if((*trackITS).GetLayer()==7) fresult->SetChi2(10.223e140);
937 // cout <<" Layer inizio = "<<(*trackITS).GetLayer()<<"\n";
938 // cout<<"fvtrack =" <<"\n";
939 // cout << (*trackITS)(0) << " "<<(*trackITS)(1)<<" "
940 // <<(*trackITS)(2)<<" "<<(*trackITS)(3)<<" "
941 // <<(*trackITS)(4)<<"\n";
942 // cout<< " rtrack = "<<(*trackITS).Getrtrack()<<"\n";
943 // cout<< " Pt = "<<(*trackITS).GetPt()<<"\n";
944 // getchar();
945 Double_t chi2Now, chi2Ref;
946 Float_t numClustRef = fresult->GetNumClust();
947 if((*trackITS).GetLayer()==1 ) {
948 chi2Now = trackITS->GetChi2();
949 Float_t numClustNow = trackITS->GetNumClust();
950 if(trackITS->GetNumClust())
951 chi2Now /= (Double_t)trackITS->GetNumClust();
952 chi2Ref = fresult->GetChi2();
953 if(fresult->GetNumClust())
954 chi2Ref /= (Double_t)fresult->GetNumClust();
955 //cout<<" chi2Now and chi2Ref = "<<chi2Now<<" "<<chi2Ref<<"\n";
956 if( numClustNow > numClustRef ) {*fresult = *trackITS;}
957 if((numClustNow == numClustRef )&&
958 (chi2Now < chi2Ref)) {
959 *fresult = *trackITS;
960 } // end if
961 continue;
962 } // end if
963
964 if(trackITS->Getfnoclust()>=2) continue;
965 Float_t numClustNow = trackITS->GetNumClust();
966 if(numClustNow) {
967 chi2Now = trackITS->GetChi2();
968
969 if(numClustNow<numClustRef && chi2Now>fresult->GetChi2()) continue;
970 //cout<<" chi2Now = "<<chi2Now<<"\n";
64ab0d55 971
b48af428 972 chi2Now/=numClustNow;
973 if(fPtref > 1.0 && chi2Now > 30.) continue;
974 if((fPtref >= 0.6 && fPtref<=1.0) && chi2Now > 40.) continue;
975 // if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 40.) continue;
976 // if(fPtref <= 0.2 && chi2Now > 8.) continue;
977 if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 30.) continue;
978 if(fPtref <= 0.2 && chi2Now > 7.) continue;
979 /////////////////////////////
980 } // end if
981
982 Int_t layerInit = (*trackITS).GetLayer();
983 Int_t layernew = layerInit - 2;// -1 for new layer, -1 for matrix index
984 TList listoftrack;
985 Int_t ladp, ladm, detp,detm,ladinters,detinters;
986 Int_t layerfin=layerInit-1;
987 // cout<<"Prima di intersection \n";
b48af428 988 Int_t outinters=Intersection(*trackITS,layerfin,ladinters,detinters);
b48af428 989 // cout<<" outinters = "<<outinters<<"\n";
990 // cout<<" Layer ladder detector intersection ="
991 // <<layerfin<<" "<<ladinters<<" "<<detinters<<"\n";
992 // cout << " phiinters zinters = "<<(*trackITS)(0)
993 // << " "<<(*trackITS)(1)<<"\n"; getchar();
994 if(outinters==-1) continue;
995 Int_t flaghit=0;
def162f4 996 (*trackITS).SetLayer(layerfin); // oggi
997 (*trackITS).Setfcor(); // oggi
b48af428 998 if(outinters==0){
999 TVector toucLad(9), toucDet(9);
1000 Int_t lycur=layerfin;
1001 ladp=ladinters+1;
1002 ladm=ladinters-1;
1003 if(ladm <= 0) ladm=fNlad[layerfin-1];
1004 if(ladp > fNlad[layerfin-1]) ladp=1;
1005 detp=detinters+1;
1006 detm=detinters-1;
1007 Int_t idetot=1;
1008 /*
1009 toucLad(0)=ladinters; toucLad(1)=ladm; toucLad(2)=ladp;
1010 toucLad(3)=ladinters; toucLad(4)=ladm; toucLad(5)=ladp;
1011 toucLad(6)=ladinters; toucLad(7)=ladm; toucLad(8)=ladp;
1012 toucDet(0)=detinters; toucDet(1)=detinters; toucDet(2)=detinters;
1013 if(detm > 0 && detp <= fNdet[layerfin-1]) {
1014 idetot=9;
1015 toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
1016 toucDet(6)=detp; toucDet(7)=detp; toucDet(8)=detp;
1017 } // end if
1018 if(detm > 0 && detp > fNdet[layerfin-1]) {
1019 idetot=6;
1020 toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
1021 } // end if
1022 if(detm <= 0 && detp <= fNdet[layerfin-1]) {
1023 idetot=6;
1024 toucDet(3)=detp; toucDet(4)=detp; toucDet(5)=detp;
1025 } // end if
1026 */
f66ae545 1027 Float_t epsphi=5.0, epsz=5.0;
b48af428 1028 if(fPtref<0.2) {epsphi=3.; epsz=3.;}
64ab0d55 1029 // new definition of idetot e toucLad e toucDet to be
b48af428 1030 // transformed in a method
1031 // these values could be modified
1032 Float_t pigre=TMath::Pi();
1033 Float_t rangephi=5., rangez=5.;
1034 if(layerfin==1 || layerfin ==2){
1035 rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1036 (*trackITS).GetSigmaphi());
1037 rangez = 40.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1038 (*trackITS).GetSigmaZ());
1039 } // end if
1040 if(layerfin==3 || layerfin ==4){
1041 //rangephi=30.*fepsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1042 // (*trackITS).GetSigmaphi());
1043 //rangez = 40.*fepsz*TMath::Sqrt(sigmazl[layerfin-1]+
1044 // (*trackITS).GetSigmaZ());
1045 rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1046 (*trackITS).GetSigmaphi());
1047 rangez = 50.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1048 (*trackITS).GetSigmaZ());
1049 } // end if
1050 if(layerfin==5 || layerfin ==6){
1051 rangephi=20.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1052 (*trackITS).GetSigmaphi());
1053 rangez =5.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1054 (*trackITS).GetSigmaZ());
1055 } // end if
1056 Float_t phinters, zinters;
1057 phinters=(*trackITS).Getphi();
1058 zinters=(*trackITS).GetZ();
1059 Float_t distz = 0.0;
1060 Float_t phicm, phicp, distphim, distphip;
1061 phicm=phinters;
cf411bb5 1062 if(phinters>fphimax[layerfin-1][ladm-1]) phicm=phinters-2*pigre; //corretto il 20-11-2001
1063 distphim=TMath::Abs(phicm-fphimax[layerfin-1][ladm-1]); //corretto il 20-11-2001
b48af428 1064 phicp=phinters;
cf411bb5 1065 //cout<<" fNlad[layerfin-1] e ladp = "<<fNlad[layerfin-1]<<" "<<ladp<<endl;
1066 if(phinters>fphimin[layerfin-1][ladp-1]) phicp=phinters-2.*pigre; //corretto il 20-11-2001
1067 distphip=TMath::Abs(phicp-fphimin[layerfin-1][ladp-1]); //corretto il 20-11-2001
b48af428 1068 Int_t flagzmin=0;
1069 Int_t flagzmax=0;
1070 idetot=1;
1071 toucLad(0)=ladinters; toucDet(0)=detinters;
1072 if(detm>0) distz=TMath::Abs(zinters-fzmax[layerfin-1][detm-1]);
1073 if(detm>0 && rangez>=distz){
1074 flagzmin=1;
1075 idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detm;
1076 if(rangephi>=distphim){
1077 idetot++;
1078 toucLad(idetot-1)=ladm;
1079 toucDet(idetot-1)=detinters;
1080 idetot++;
1081 toucLad(idetot-1)=ladm;
1082 toucDet(idetot-1)=detm;
1083 } // end if
1084 if(rangephi>=distphip){
1085 idetot++;
1086 toucLad(idetot-1)=ladp;
1087 toucDet(idetot-1)=detinters;
1088 idetot++;
1089 toucLad(idetot-1)=ladp;
1090 toucDet(idetot-1)=detm;
1091 } // end if
1092 } //end detm>0....
1093 if(detp<=fNdet[layerfin-1])
1094 distz=TMath::Abs(zinters-fzmin[layerfin-1][detp-1]);
1095 if(detp<=fNdet[layerfin-1] && rangez>=distz){
1096 flagzmax=1;
1097 idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detp;
1098 if(rangephi>=distphim){
1099 idetot++; toucLad(idetot-1)=ladm; toucDet(idetot-1)=detp;
1100 if(flagzmin == 0) {
1101 idetot++;
1102 toucLad(idetot-1)=ladm;
1103 toucDet(idetot-1)=detinters;
1104 } // end if
1105 } // end if
1106 if(rangephi>=distphip){
1107 idetot++;
1108 toucLad(idetot-1)=ladp;
1109 toucDet(idetot-1)=detp;
1110 if(flagzmin == 0) {
1111 idetot++;
1112 toucLad(idetot-1)=ladp;
1113 toucDet(idetot-1)=detinters;
1114 } // end if
1115 } // end if
1116 } //end detm<fNdet[.......
1117
1118 if(flagzmin == 0 && flagzmax==0){
1119 if(rangephi>=distphim){
1120 idetot++;
1121 toucLad(idetot-1)=ladm;
1122 toucDet(idetot-1)=detinters;
1123 } // end if
1124 if(rangephi>=distphip){
1125 idetot++;
1126 toucLad(idetot-1)=ladp;
1127 toucDet(idetot-1)=detinters;
1128 } // end if
1129 } // end if
1130 ////////////////////////////////////////////////////////////
1131 Int_t iriv;
1132 for (iriv=0; iriv<idetot; iriv++) { //for on detectors
1133 ///////////////////////////////////////////////////////
1134 /*** Rec points sorted by module *****/
1135 /**************************************/
64ab0d55 1136 Int_t indexmod;
b48af428 1137 indexmod = g1->GetModuleIndex(lycur,(Int_t)toucLad(iriv),
64ab0d55 1138 (Int_t)toucDet(iriv));
b48af428 1139 fITS->ResetRecPoints();
1140 gAlice->TreeR()->GetEvent(indexmod);
1141 Int_t npoints=frecPoints->GetEntries();
64ab0d55 1142
b48af428 1143 Int_t indnew;
1144 for(indnew=0; indnew<npoints; indnew++){
1145 if (*(fvettid[indexmod]+indnew)==0)
1146 recp =(AliITSRecPoint*)frecPoints->UncheckedAt(indnew);
1147 else
f66ae545 1148 continue;
b48af428 1149 TVector cluster(3),vecclust(9);
64ab0d55 1150 //vecclust(6)=vecclust(7)=vecclust(8)=-1.;
1151 Double_t sigma[2];
1152 // now vecclust is with cylindrical cohordinates
1153 vecclust(0)=(Float_t)fRecCylR[indexmod][indnew];
1154 vecclust(1)=(Float_t)fRecCylPhi[indexmod][indnew];
1155 vecclust(2)=(Float_t)fRecCylZ[indexmod][indnew];
b48af428 1156 vecclust(3) = (Float_t)recp->fTracks[0];
b48af428 1157 vecclust(4) = (Float_t)indnew;
64ab0d55 1158 vecclust(5) = (Float_t)indexmod;
b48af428 1159 vecclust(6) = (Float_t)recp->fTracks[0];
1160 vecclust(7) = (Float_t)recp->fTracks[1];
1161 vecclust(8) = (Float_t)recp->fTracks[2];
1162 sigma[0] = (Double_t) recp->GetSigmaX2();
1163 sigma[1] = (Double_t) recp->GetSigmaZ2();
64ab0d55 1164
1165 cluster(0)=fRecCylR[indexmod][indnew];
1166 cluster(1)=fRecCylPhi[indexmod][indnew];
1167 cluster(2)=fRecCylZ[indexmod][indnew];
1168
b48af428 1169 // cout<<" layer = "<<play<<"\n";
1170 // cout<<" cluster prima = "<<vecclust(0)<<" "
1171 // <<vecclust(1)<<" "
1172 // <<vecclust(2)<<"\n"; getchar();
1173
1174 Float_t sigmatotphi, sigmatotz;
1175 // Float_t epsphi=5.0, epsz=5.0;
1176 //if(fPtref<0.2) {epsphi=3.; epsz=3.;}
1177 Double_t rTrack=(*trackITS).Getrtrack();
1178 Double_t sigmaphi=sigma[0]/(rTrack*rTrack);
1179 sigmatotphi=epsphi*TMath::Sqrt(sigmaphi +
1180 (*trackITS).GetSigmaphi());
1181 sigmatotz=epsz*TMath::Sqrt(sigma[1] +
1182 (*trackITS).GetSigmaZ());
1183 //cout<<"cluster e sigmatotphi e track = "<<cluster(0)
1184 // <<" "<<cluster(1)<<" "<<sigmatotphi<<" "
1185 // <<vecclust(3)<<"\n";
1186 //if(vecclust(3)==481) getchar();
1187 if(cluster(1)<6. && (*trackITS).Getphi()>6.)
1188 cluster(1)=cluster(1)+(2.*TMath::Pi());
1189 if(cluster(1)>6. && (*trackITS).Getphi()<6.)
1190 cluster(1)=cluster(1)-(2.*TMath::Pi());
1191 if(TMath::Abs(cluster(1)-(*trackITS).Getphi())>sigmatotphi)
1192 continue;
1193 // cout<<" supero sigmaphi \n";
1194 AliITSTrackV1 *newTrack = new AliITSTrackV1((*trackITS));
def162f4 1195 //(*newTrack).SetLayer((*trackITS).GetLayer()-1);
b48af428 1196 if (TMath::Abs(rTrack-cluster(0))/rTrack>1e-6)
1197 (*newTrack).Correct(Double_t(cluster(0)));
1198 //cout<<" cluster(2) e(*newTrack).GetZ()="<<cluster(2)<<" "
1199 // << (*newTrack).GetZ()<<"\n";
1200 if(TMath::Abs(cluster(2)-(*newTrack).GetZ()) > sigmatotz){
1201 delete newTrack;
1202 continue;
1203 } // end if
1204 Double_t sigmanew[2];
1205 sigmanew[0]= sigmaphi;
1206 sigmanew[1]=sigma[1];
1207 Double_t m[2];
1208 m[0]=cluster(1);
1209 m[1]=cluster(2);
1210 // Double_t chi2pred=newTrack->GetPredChi2(m,sigmanew);
1211 // cout<<" chi2pred = "<<chi2pred<<"\n";
1212 // if(chi2pred>fChi2max) continue; //aggiunto il 30-7-2001
1213 if(iriv == 0) flaghit=1;
088e0b8d 1214 (*newTrack).AddMS(); // add the multiple scattering
b48af428 1215 //matrix to the covariance matrix
d0df5576 1216 (*newTrack).AddEL(1.,0);
b48af428 1217
b48af428 1218 if(fflagvert){
1219 KalmanFilterVert(newTrack,cluster,sigmanew);
1220 //KalmanFilterVert(newTrack,cluster,sigmanew,chi2pred);
1221 }else{
1222 KalmanFilter(newTrack,cluster,sigmanew);
1223 } // end if
b48af428 1224 (*newTrack).PutCluster(layernew, vecclust);
1225 newTrack->AddClustInTrack();
1226 listoftrack.AddLast(newTrack);
1227 } // end for indnew
b48af428 1228 } // end of for on detectors (iriv)
1229 }//end if(outinters==0)
1230
1231 if(flaghit==0 || outinters==-2) {
1232 AliITSTrackV1 *newTrack = new AliITSTrackV1(*trackITS);
1233 (*newTrack).Setfnoclust();
def162f4 1234 //(*newTrack).SetLayer((*trackITS).GetLayer()-1);
088e0b8d 1235 (*newTrack).AddMS(); // add the multiple scattering matrix
b48af428 1236 // to the covariance matrix
d0df5576 1237 (*newTrack).AddEL(1.,0);
b48af428 1238 listoftrack.AddLast(newTrack);
1239 } // end if
1240
1241 //gObjectTable->Print(); // stampa memoria
04b80329 1242
b48af428 1243 RecursiveTracking(&listoftrack);
1244 listoftrack.Delete();
1245 } // end of for on tracks (index)
04b80329 1246
b48af428 1247 //gObjectTable->Print(); // stampa memoria
13888096 1248}
b48af428 1249//______________________________________________________________________
1250Int_t AliITSTrackerV1::Intersection(AliITSTrackV1 &track,Int_t layer,
1251 Int_t &ladder,Int_t &detector) {
1252 // Origin A. Badala' and G.S. Pappalardo
1253 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1254 // Found the intersection and the detector
1255
1256 Double_t rk=fAvrad[layer-1];
1257 if(track.DoNotCross(rk)){ /*cout<< " Do not cross \n";*/ return -1;}
1258 track.Propagation(rk);
1259 Double_t zinters=track.GetZ();
1260 Double_t phinters=track.Getphi();
1261 //cout<<"zinters = "<<zinters<<" phinters = "<<phinters<<"\n";
1262
1263 TVector det(9);
1264 TVector listDet(2);
1265 TVector distZCenter(2);
1266
1267 Int_t iz=0;
1268 Int_t iD;
1269 for(iD = 1; iD<= fNdet[layer-1]; iD++) {
1270 if(zinters > fzmin[layer-1][iD-1] && zinters <= fzmax[layer-1][iD-1]) {
1271 if(iz>1) {
1272 cout<< " Errore su iz in Intersection \n";
1273 getchar();
1274 }else {
1275 listDet(iz)= iD; distZCenter(iz)=TMath::Abs(zinters-det(2));
1276 iz++;
1277 } // end if
1278 } // end if
1279 } // end for iD
1280
1281 if(iz==0) {/* cout<< " No detector along Z \n";*/ return -2;}
1282 detector=Int_t (listDet(0));
1283 if(iz>1 && (distZCenter(0)>distZCenter(1))) detector=Int_t (listDet(1));
1284
1285 TVector listLad(2);
1286 TVector distPhiCenter(2);
1287 Int_t ip=0;
1288 Double_t pigre=TMath::Pi();
1289 Int_t iLd;
1290 for(iLd = 1; iLd<= fNlad[layer-1]; iLd++) {
1291 Double_t phimin=fphimin[layer-1][iLd-1];
1292 Double_t phimax=fphimax[layer-1][iLd-1];
1293 Double_t phidet=fphidet[layer-1][iLd-1];
1294 Double_t phiconfr=phinters;
1295 if(phimin>phimax) {
1296 //if(phimin <5.5) {cout<<" Error in Intersection for phi \n";
1297 // getchar();}
1298 phimin-=(2.*pigre);
1299 if(phinters>(1.5*pigre)) phiconfr=phinters-(2.*pigre);
1300 if(phidet>(1.5*pigre)) phidet-=(2.*pigre);
1301 } // end if
1302 if(phiconfr>phimin && phiconfr<= phimax) {
1303 if(ip>1) {
1304 cout<< " Errore su ip in Intersection \n"; getchar();
1305 }else {
1306 listLad(ip)= iLd;
1307 distPhiCenter(ip)=TMath::Abs(phiconfr-phidet); ip++;
1308 } // end if
1309 } // end if
1310 } // end for iLd
1311 if(ip==0) { cout<< " No detector along phi \n"; getchar();}
1312 ladder=Int_t (listLad(0));
1313 if(ip>1 && (distPhiCenter(0)>distPhiCenter(1))) ladder=Int_t (listLad(1));
1314 return 0;
1315}
1316//______________________________________________________________________
1317void AliITSTrackerV1::KalmanFilter(AliITSTrackV1 *newTrack,TVector &cluster,
1318 Double_t sigma[2]){
1319 //Origin A. Badala' and G.S. Pappalardo:
1320 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1321 // Kalman filter without vertex constraint
1322 ////// Evaluation of the measurement vector ////////////////////////
1323 Double_t m[2];
1324 Double_t rk,phik,zk;
1325 rk=cluster(0); phik=cluster(1); zk=cluster(2);
1326 m[0]=phik; m[1]=zk;
1327 //////////////////////// Evaluation of the error matrix V /////////
1328 Double_t v00=sigma[0];
1329 Double_t v11=sigma[1];
1330 ////////////////////////////////////////////////////////////////////
1331 Double_t cin00,cin10,cin20,cin30,cin40,cin11,cin21,cin31,cin41,cin22,
1332 cin32,cin42,cin33,cin43,cin44;
1333
1334 newTrack->GetCElements(cin00,
1335 cin10,cin11,
1336 cin20,cin21,cin22,
1337 cin30,cin31,cin32,cin33,
1338 cin40,cin41,cin42,cin43,cin44); //get C matrix
1339 Double_t rold00=cin00+v00;
1340 Double_t rold10=cin10;
1341 Double_t rold11=cin11+v11;
1342 ////////////////////// R matrix inversion /////////////////////////
1343 Double_t det=rold00*rold11-rold10*rold10;
1344 Double_t r00=rold11/det;
1345 Double_t r10=-rold10/det;
1346 Double_t r11=rold00/det;
1347 ////////////////////////////////////////////////////////////////////
1348 Double_t k00=cin00*r00+cin10*r10;
1349 Double_t k01=cin00*r10+cin10*r11;
1350 Double_t k10=cin10*r00+cin11*r10;
1351 Double_t k11=cin10*r10+cin11*r11;
1352 Double_t k20=cin20*r00+cin21*r10;
1353 Double_t k21=cin20*r10+cin21*r11;
1354 Double_t k30=cin30*r00+cin31*r10;
1355 Double_t k31=cin30*r10+cin31*r11;
1356 Double_t k40=cin40*r00+cin41*r10;
1357 Double_t k41=cin40*r10+cin41*r11;
1358 Double_t x0,x1,x2,x3,x4;
1359 newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
1360 Double_t savex0=x0, savex1=x1;
1361 x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1);
1362 x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1);
1363 x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1);
1364 x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1);
1365 x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1);
1366 Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
1367 c00=cin00-k00*cin00-k01*cin10;
1368 c10=cin10-k00*cin10-k01*cin11;
1369 c20=cin20-k00*cin20-k01*cin21;
1370 c30=cin30-k00*cin30-k01*cin31;
1371 c40=cin40-k00*cin40-k01*cin41;
1372 c11=cin11-k10*cin10-k11*cin11;
1373 c21=cin21-k10*cin20-k11*cin21;
1374 c31=cin31-k10*cin30-k11*cin31;
1375 c41=cin41-k10*cin40-k11*cin41;
1376 c22=cin22-k20*cin20-k21*cin21;
1377 c32=cin32-k20*cin30-k21*cin31;
1378 c42=cin42-k20*cin40-k21*cin41;
1379 c33=cin33-k30*cin30-k31*cin31;
1380 c43=cin43-k30*cin40-k31*cin41;
1381 c44=cin44-k40*cin40-k41*cin41;
1382 newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
1383 newTrack->PutCElements(c00,
1384 c10,c11,
1385 c20,c21,c22,
1386 c30,c31,c32,c33,
1387 c40,c41,c42,c43,c44); // put in track the
1388 // new cov matrix
1389 Double_t vmcold00=v00-c00;
1390 Double_t vmcold10=-c10;
1391 Double_t vmcold11=v11-c11;
1392 ////////////////////// Matrix vmc inversion ///////////////////////
1393 det=vmcold00*vmcold11-vmcold10*vmcold10;
1394 Double_t vmc00=vmcold11/det;
1395 Double_t vmc10=-vmcold10/det;
1396 Double_t vmc11=vmcold00/det;
1397 ////////////////////////////////////////////////////////////////////
1398 Double_t chi2=(m[0]-x0)*( vmc00*(m[0]-x0) + 2.*vmc10*(m[1]-x1) ) +
1399 (m[1]-x1)*vmc11*(m[1]-x1);
04b80329 1400 newTrack->SetChi2(newTrack->GetChi2()+chi2);
b48af428 1401}
1402//----------------------------------------------------------------------
1403//void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,
1404// TVector &cluster,Double_t sigma[2]){
1405void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,
1406 TVector &cluster,Double_t sigma[2]
1407 /*, Double_t chi2pred*/){
1408 //Origin A. Badala' and G.S. Pappalardo:
1409 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1410 // Kalman filter with vertex constraint
1411 ///////////////////// Evaluation of the measurement vector m ////////
1412 Double_t m[4];
1413 Double_t rk,phik,zk;
1414 rk=cluster(0); phik=cluster(1); zk=cluster(2);
1415 m[0]=phik; m[1]=zk;
1416 Double_t cc=(*newTrack).GetC();
1417 Double_t zv=(*newTrack).GetZv();
1418 Double_t dv=(*newTrack).GetDv();
1419 Double_t cy=cc/2.;
1420 Double_t tgl= (zk-zv)*cy/TMath::ASin(cy*rk);
1421 m[2]=dv; m[3]=tgl;
1422 /////////////////////// Evaluation of the error matrix V //////////
1423 Int_t layer=newTrack->GetLayer();
1424 Double_t v00=sigma[0];
1425 Double_t v11=sigma[1];
1426 Double_t v31=sigma[1]/rk;
1427 Double_t sigmaDv=newTrack->GetsigmaDv();
1428 Double_t v22=sigmaDv*sigmaDv + newTrack->Getd2(layer-1);
1429 Double_t v32=newTrack->Getdtgl(layer-1);
1430 Double_t sigmaZv=newTrack->GetsigmaZv();
1431 Double_t v33=(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+newTrack->Gettgl2(layer-1);
1432 //////////////////////////////////////////////////////////////////
1433 Double_t cin00,cin10,cin11,cin20,cin21,cin22,
1434 cin30,cin31,cin32,cin33,cin40,cin41,cin42,cin43,cin44;
1435 newTrack->GetCElements(cin00,
1436 cin10,cin11,
1437 cin20,cin21,cin22,
1438 cin30,cin31,cin32,cin33,
1439 cin40,cin41,cin42,cin43,cin44); //get C matrix
1440 Double_t r[4][4];
1441 r[0][0]=cin00+v00;
1442 r[1][0]=cin10;
1443 r[2][0]=cin20;
1444 r[3][0]=cin30;
1445 r[1][1]=cin11+v11;
1446 r[2][1]=cin21;
1447 r[3][1]=cin31+sigma[1]/rk;
1448 r[2][2]=cin22+sigmaDv*sigmaDv+newTrack->Getd2(layer-1);
1449 r[3][2]=cin32+newTrack->Getdtgl(layer-1);
1450 r[3][3]=cin33+(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+
1451 newTrack->Gettgl2(layer-1);
1452 r[0][1]=r[1][0]; r[0][2]=r[2][0]; r[0][3]=r[3][0];
1453 r[1][2]=r[2][1]; r[1][3]=r[3][1]; r[2][3]=r[3][2];
1454 ///////////////////// Matrix R inversion //////////////////////////
1455 const Int_t kn=4;
1456 Double_t big, hold;
1457 Double_t d=1.;
1458 Int_t ll[kn],mm[kn];
1459 Int_t i,j,k;
1460
1461 for(k=0; k<kn; k++) {
1462 ll[k]=k;
1463 mm[k]=k;
1464 big=r[k][k];
1465 for(j=k; j<kn ; j++) {
1466 for (i=j; i<kn; i++) {
1467 if(TMath::Abs(big) < TMath::Abs(r[i][j]) ) {
1468 big=r[i][j];
1469 ll[k]=i;
1470 mm[k]=j;
1471 } // end if
1472 } // end for i
1473 } // end for j
1474 //
1475 j= ll[k];
1476 if(j > k) {
1477 for(i=0; i<kn; i++) {
1478 hold=-r[k][i];
1479 r[k][i]=r[j][i];
1480 r[j][i]=hold;
1481 } // end for i
1482 }// end if
1483 //
1484 i=mm[k];
1485 if(i > k ) {
1486 for(j=0; j<kn; j++) {
1487 hold=-r[j][k];
1488 r[j][k]=r[j][i];
1489 r[j][i]=hold;
1490 } // end for j
1491 } // end if
1492 //
1493 if(!big) {
1494 d=0.;
1495 cout << "Singular matrix\n";
1496 } // end if
1497 for(i=0; i<kn; i++) {
1498 if(i == k) { continue; }
1499 r[i][k]=r[i][k]/(-big);
1500 } // end for i
1501 //
1502 for(i=0; i<kn; i++) {
1503 hold=r[i][k];
1504 for(j=0; j<kn; j++) {
1505 if(i == k || j == k) continue;
1506 r[i][j]=hold*r[k][j]+r[i][j];
1507 } // end for j
1508 } // end of ri
1509 //
1510 for(j=0; j<kn; j++) {
1511 if(j == k) continue;
1512 r[k][j]=r[k][j]/big;
1513 } // end for j
1514 //
1515 d=d*big;
1516 //
1517 r[k][k]=1./big;
1518 } // end for k
1519 //
1520 for(k=kn-1; k>=0; k--) {
1521 i=ll[k];
1522 if(i > k) {
1523 for (j=0; j<kn; j++) {
1524 hold=r[j][k];
1525 r[j][k]=-r[j][i];
1526 r[j][i]=hold;
1527 } // end for j
1528 } // end if i
1529 j=mm[k];
1530 if(j > k) {
1531 for (i=0; i<kn; i++) {
1532 hold=r[k][i];
1533 r[k][i]=-r[j][i];
1534 r[j][i]=hold;
1535 } // end for i
1536 } // end if
1537 } // end for k
1538 ////////////////////////////////////////////////////////////////////
1539 Double_t k00=cin00*r[0][0]+cin10*r[1][0]+cin20*r[2][0]+cin30*r[3][0];
1540 Double_t k01=cin00*r[1][0]+cin10*r[1][1]+cin20*r[2][1]+cin30*r[3][1];
1541 Double_t k02=cin00*r[2][0]+cin10*r[2][1]+cin20*r[2][2]+cin30*r[3][2];
1542 Double_t k03=cin00*r[3][0]+cin10*r[3][1]+cin20*r[3][2]+cin30*r[3][3];
1543 Double_t k10=cin10*r[0][0]+cin11*r[1][0]+cin21*r[2][0]+cin31*r[3][0];
1544 Double_t k11=cin10*r[1][0]+cin11*r[1][1]+cin21*r[2][1]+cin31*r[3][1];
1545 Double_t k12=cin10*r[2][0]+cin11*r[2][1]+cin21*r[2][2]+cin31*r[3][2];
1546 Double_t k13=cin10*r[3][0]+cin11*r[3][1]+cin21*r[3][2]+cin31*r[3][3];
1547 Double_t k20=cin20*r[0][0]+cin21*r[1][0]+cin22*r[2][0]+cin32*r[3][0];
1548 Double_t k21=cin20*r[1][0]+cin21*r[1][1]+cin22*r[2][1]+cin32*r[3][1];
1549 Double_t k22=cin20*r[2][0]+cin21*r[2][1]+cin22*r[2][2]+cin32*r[3][2];
1550 Double_t k23=cin20*r[3][0]+cin21*r[3][1]+cin22*r[3][2]+cin32*r[3][3];
1551 Double_t k30=cin30*r[0][0]+cin31*r[1][0]+cin32*r[2][0]+cin33*r[3][0];
1552 Double_t k31=cin30*r[1][0]+cin31*r[1][1]+cin32*r[2][1]+cin33*r[3][1];
1553 Double_t k32=cin30*r[2][0]+cin31*r[2][1]+cin32*r[2][2]+cin33*r[3][2];
1554 Double_t k33=cin30*r[3][0]+cin31*r[3][1]+cin32*r[3][2]+cin33*r[3][3];
1555 Double_t k40=cin40*r[0][0]+cin41*r[1][0]+cin42*r[2][0]+cin43*r[3][0];
1556 Double_t k41=cin40*r[1][0]+cin41*r[1][1]+cin42*r[2][1]+cin43*r[3][1];
1557 Double_t k42=cin40*r[2][0]+cin41*r[2][1]+cin42*r[2][2]+cin43*r[3][2];
1558 Double_t k43=cin40*r[3][0]+cin41*r[3][1]+cin42*r[3][2]+cin43*r[3][3];
1559
1560 Double_t x0,x1,x2,x3,x4;
1561 newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
1562 Double_t savex0=x0, savex1=x1, savex2=x2, savex3=x3;
1563 x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1)+k02*(m[2]-savex2)+
1564 k03*(m[3]-savex3);
1565 x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1)+k12*(m[2]-savex2)+
1566 k13*(m[3]-savex3);
1567 x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1)+k22*(m[2]-savex2)+
1568 k23*(m[3]-savex3);
1569 x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1)+k32*(m[2]-savex2)+
1570 k33*(m[3]-savex3);
1571 x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1)+k42*(m[2]-savex2)+
1572 k43*(m[3]-savex3);
1573 Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
1574 c00=cin00-k00*cin00-k01*cin10-k02*cin20-k03*cin30;
1575 c10=cin10-k00*cin10-k01*cin11-k02*cin21-k03*cin31;
1576 c20=cin20-k00*cin20-k01*cin21-k02*cin22-k03*cin32;
1577 c30=cin30-k00*cin30-k01*cin31-k02*cin32-k03*cin33;
1578 c40=cin40-k00*cin40-k01*cin41-k02*cin42-k03*cin43;
1579 c11=cin11-k10*cin10-k11*cin11-k12*cin21-k13*cin31;
1580 c21=cin21-k10*cin20-k11*cin21-k12*cin22-k13*cin32;
1581 c31=cin31-k10*cin30-k11*cin31-k12*cin32-k13*cin33;
1582 c41=cin41-k10*cin40-k11*cin41-k12*cin42-k13*cin43;
1583 c22=cin22-k20*cin20-k21*cin21-k22*cin22-k23*cin32;
1584 c32=cin32-k20*cin30-k21*cin31-k22*cin32-k23*cin33;
1585 c42=cin42-k20*cin40-k21*cin41-k22*cin42-k23*cin43;
1586 c33=cin33-k30*cin30-k31*cin31-k32*cin32-k33*cin33;
1587 c43=cin43-k30*cin40-k31*cin41-k32*cin42-k33*cin43;
1588 c44=cin44-k40*cin40-k41*cin41-k42*cin42-k43*cin43;
1589
1590 newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
1591 newTrack->PutCElements(c00,
1592 c10,c11,
1593 c20,c21,c22,
1594 c30,c31,c32,c33,
1595 c40,c41,c42,c43,c44); // put in track the
1596 // new cov matrix
1597 Double_t vmc[4][4];
1598 vmc[0][0]=v00-c00; vmc[1][0]=-c10; vmc[2][0]=-c20; vmc[3][0]=-c30;
1599 vmc[1][1]=v11-c11; vmc[2][1]=-c21; vmc[3][1]=v31-c31;
1600 vmc[2][2]=v22-c22; vmc[3][2]=v32-c32;
1601 vmc[3][3]=v33-c33;
1602 vmc[0][1]=vmc[1][0]; vmc[0][2]=vmc[2][0]; vmc[0][3]=vmc[3][0];
1603 vmc[1][2]=vmc[2][1]; vmc[1][3]=vmc[3][1];
1604 vmc[2][3]=vmc[3][2];
1605 /////////////////////// vmc matrix inversion ///////////////////////
1606 d=1.;
1607 for(k=0; k<kn; k++) {
1608 ll[k]=k;
1609 mm[k]=k;
1610 big=vmc[k][k];
1611 for(j=k; j<kn ; j++) {
1612 for (i=j; i<kn; i++) {
1613 if(TMath::Abs(big) < TMath::Abs(vmc[i][j]) ) {
1614 big=vmc[i][j];
1615 ll[k]=i;
1616 mm[k]=j;
1617 } // end if
1618 } // end for i
1619 } // end for j
1620 //
1621 j= ll[k];
1622 if(j > k) {
1623 for(i=0; i<kn; i++) {
1624 hold=-vmc[k][i];
1625 vmc[k][i]=vmc[j][i];
1626 vmc[j][i]=hold;
1627 } // end for i
1628 } // end if
1629 //
1630 i=mm[k];
1631 if(i > k ) {
1632 for(j=0; j<kn; j++) {
1633 hold=-vmc[j][k];
1634 vmc[j][k]=vmc[j][i];
1635 vmc[j][i]=hold;
1636 } // end for j
1637 } // end if
1638 //
1639 if(!big) {
1640 d=0.;
1641 cout << "Singular matrix\n";
1642 } // end if
1643 for(i=0; i<kn; i++) {
1644 if(i == k) continue;
1645 vmc[i][k]=vmc[i][k]/(-big);
1646 } // end for i
1647 //
1648 for(i=0; i<kn; i++) {
1649 hold=vmc[i][k];
1650 for(j=0; j<kn; j++) {
1651 if(i == k || j == k) continue;
1652 vmc[i][j]=hold*vmc[k][j]+vmc[i][j];
1653 } // end for j
1654 } // end for i
1655 //
1656 for(j=0; j<kn; j++) {
1657 if(j == k) continue;
1658 vmc[k][j]=vmc[k][j]/big;
1659 } // end for j
1660 //
1661 d=d*big;
1662 //
1663 vmc[k][k]=1./big;
1664 } // end for k
1665 //
1666 for(k=kn-1; k>=0; k--) {
1667 i=ll[k];
1668 if(i > k) {
1669 for (j=0; j<kn; j++) {
1670 hold=vmc[j][k];
1671 vmc[j][k]=-vmc[j][i];
1672 vmc[j][i]=hold;
1673 } // end for j
1674 } // end if i>k
1675 j=mm[k];
1676 if(j > k) {
1677 for (i=0; i<kn; i++) {
1678 hold=vmc[k][i];
1679 vmc[k][i]=-vmc[j][i];
1680 vmc[j][i]=hold;
1681 } // end for i
1682 } // end if j>k
1683 } // end for k
1684 ////////////////////////////////////////////////////////////////////
1685 Double_t chi2=(m[0]-x0)*( vmc[0][0]*(m[0]-x0) + 2.*vmc[1][0]*(m[1]-x1) +
1686 2.*vmc[2][0]*(m[2]-x2)+ 2.*vmc[3][0]*(m[3]-x3) )+
1687 (m[1]-x1)* ( vmc[1][1]*(m[1]-x1) + 2.*vmc[2][1]*(m[2]-x2)+
1688 2.*vmc[3][1]*(m[3]-x3) ) +
1689 (m[2]-x2)* ( vmc[2][2]*(m[2]-x2)+ 2.*vmc[3][2]*(m[3]-x3) ) +
1690 (m[3]-x3)*vmc[3][3]*(m[3]-x3);
1691 //cout<<" chi2 kalman = "<<chi2<<"\n"; getchar();
1692 newTrack->SetChi2(newTrack->GetChi2()+chi2);
1693 // newTrack->SetChi2(newTrack->GetChi2()+chi2pred);
1694}