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bugfix: external interface was calling AliHLTComponent::Init twice since r27483
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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>
13888096 33#include <TMath.h>
13888096 34#include <TBranch.h>
35#include <TVector.h>
13888096 36#include <TFile.h>
7d62fb64 37#include <TRandom.h>
13888096 38#include <TTree.h>
cbcfa38d 39
13888096 40#include "TParticle.h"
41#include "AliRun.h"
7d62fb64 42#include "AliITSDetTypeRec.h"
13888096 43#include "AliITSgeomSPD.h"
44#include "AliITSgeomSDD.h"
45#include "AliITSgeomSSD.h"
46#include "AliITSgeom.h"
13888096 47#include "AliITSRecPoint.h"
13888096 48#include "AliKalmanTrack.h"
49#include "AliMagF.h"
04b80329 50#include "AliITSTrackV1.h"
51#include "AliITSIOTrack.h"
52#include "AliITSRad.h"
e869281d 53#include "AliTPCtracker.h"
13888096 54#include "AliITSTrackerV1.h"
def162f4 55#include "AliITSPid.h"
5d12ce38 56#include "AliMC.h"
13888096 57
13888096 58ClassImp(AliITSTrackerV1)
55cd883f 59 //______________________________________________________________________
60AliITSTrackerV1::AliITSTrackerV1() {
61 //Default constructor
7d62fb64 62 //fITS = 0;
55cd883f 63 fresult = 0;
64ab0d55 64 fPtref=0.;
65 fChi2max=0.;
66 //fepsphi=0.;
67 //fepsz=0.;
55cd883f 68 frecPoints = 0;
69 fvettid = 0;
64ab0d55 70 fflagvert=0;
55cd883f 71 frl = 0;
64ab0d55 72 Int_t ia;
73 for(ia=0; ia<6; ia++) {
74 fNlad[ia]=0;
75 fNdet[ia]=0;
76 fAvrad[ia]=0.;
77 fDetx[ia]=0.;
78 fDetz[ia]=0.;
79 } // end for ia
55cd883f 80 fzmin = 0;
81 fzmax = 0;
82 fphimin = 0;
83 fphimax = 0;
84 fphidet = 0;
64ab0d55 85 fNRecPoints=0;
86 fRecCylR=0;
87 fRecCylPhi=0;
88 fRecCylZ=0;
89 fFieldFactor=0;
7d62fb64 90 fDetTypeRec = 0;
55cd883f 91}
b48af428 92//______________________________________________________________________
7d62fb64 93AliITSTrackerV1::AliITSTrackerV1(Int_t evnumber, Bool_t flag) {
b48af428 94 //Origin A. Badala' and G.S. Pappalardo:
95 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
96 // Class constructor. It does some initializations.
97
a49bb2c8 98 //PH Initialisation taken from the default constructor
7d62fb64 99 //fITS = IITTSS;
7d62fb64 100 fresult = 0;
101 fPtref = 0.;
102 fChi2max =0.;
103 frecPoints = 0;
104 fvettid = 0;
105 fflagvert = flag;
106 frl = 0;
107 fzmin = 0;
108 fzmax = 0;
109 fphimin = 0;
110 fphimax = 0;
111 fphidet = 0;
64ab0d55 112
7d62fb64 113 Int_t imax = 200,jmax = 450;
114 frl = new AliITSRad(imax,jmax);
115
116 ////////// gets information on geometry /////////////////////////////
117 AliRunLoader* rl = AliRunLoader::Open("galice.root");
8e50d897 118 AliITSLoader* loader = (AliITSLoader*)runLoader->GetLoader("ITSLoader");
119 if (!loader) {
120 Error("AliITSTrackerV1", "ITS loader not found");
121 return;
122 }
123 fDetTypeRec = new AliITSDetTypeRec(loader);
124 AliITSgeom* g1 = loader->GetITSgeom();
b48af428 125
7d62fb64 126 Int_t ll=1, dd=1;
127 TVector det(9);
128
129 Int_t ia;
130 for(ia=0; ia<6; ia++) {
131 fNlad[ia]=g1->GetNladders(ia+1);
132 fNdet[ia]=g1->GetNdetectors(ia+1);
133 //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n";
134 } // end for ia
135
64ab0d55 136 //cout<<" mean radius = ";
7d62fb64 137 Int_t ib;
138 for(ib=0; ib<6; ib++) {
139 g1->GetCenterThetaPhi(ib+1,ll,dd,det);
140 Double_t r1=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
141 g1->GetCenterThetaPhi(ib+1,ll,dd+1,det);
142 Double_t r2=TMath::Sqrt(det(0)*det(0)+det(1)*det(1));
143 fAvrad[ib]=(r1+r2)/2.;
144 //cout<<fAvrad[ib]<<" ";
145 } // end for ib
b48af428 146 //cout<<"\n"; getchar();
7d62fb64 147
148 fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx();
149 fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz();
150
151 fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx();
152 fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz();
b48af428 153
154 fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx();
155 fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz();
156
157 fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx();
158 fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz();
159
160 fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx();
161 fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz();
162
163 fDetx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx();
164 fDetz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz();
165 //cout<<" Detx Detz\n";
166 //for(Int_t la=0; la<6; la++) cout<<" "<<fDetx[la]<<" "<<
167 // fDetz[la]<<endl;
168 //getchar();
64ab0d55 169
b48af428 170 // allocate memory and define matrices fzmin, fzmax, fphimin and fphimax //
171 Double_t epsz=1.2;
172 Double_t epszdrift=0.05;
173
174 fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
175 Int_t im1, im2, im2max;
176 for(im1=0; im1<6; im1++) {
177 im2max=fNdet[im1];
178 fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
179 } // end for im1
180
181 for(im1=0; im1<6; im1++) {
182 im2max=fNdet[im1];
183 for(im2=0; im2<im2max; im2++) {
184 g1->GetCenterThetaPhi(im1+1,1,im2+1,det);
185 if(im2!=0) fzmin[im1][im2]=det(2)-fDetz[im1];
186 else
187 fzmin[im1][im2]=det(2)-(fDetz[im1])*epsz;
188 if(im2!=(im2max-1)) fzmax[im1][im2]=det(2)+fDetz[im1];
189 else
cbcfa38d 190 fzmax[im1][im2]=det(2)+fDetz[im1]*epsz;
b48af428 191 if(im1==2 || im1==3) {
192 fzmin[im1][im2]-=epszdrift;
193 fzmax[im1][im2]+=epszdrift;
194 } // end if im1==2 || im1==3
195 } // end for im2
196 } // end for im1
13888096 197
b48af428 198 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
199 for(im1=0;im1<6;im1++) {
200 im2max=fNlad[im1];
201 fphimin[im1] = new Double_t[im2max];
202 fphimax[im1] = new Double_t[im2max];
203 } // end for im1
204
205 fphidet = new Double_t*[6];
206 for(im1=0; im1<6; im1++) {
207 im2max=fNlad[im1];
208 fphidet[im1] = new Double_t[im2max];
209 } // end for im1
210
def162f4 211 Double_t global[3],local[3];
b48af428 212 Double_t pigre=TMath::Pi();
213 Double_t xmin,ymin,xmax,ymax;
214
215 for(im1=0; im1<6; im1++) {
216 im2max=fNlad[im1];
217 for(im2=0; im2<im2max; im2++) {
218 Int_t idet=2;
219 g1->GetCenterThetaPhi(im1+1,im2+1,idet,det);
220 fphidet[im1][im2] = TMath::ATan2(Double_t(det(1)),
221 Double_t(det(0)));
222 if(fphidet[im1][im2]<0.) fphidet[im1][im2]+=2.*pigre;
223 local[1]=local[2]=0.;
224 local[0]= -(fDetx[im1]);
225 if(im1==0) local[0]= (fDetx[im1]); //to take into account
226 // different reference system
227 g1->LtoG(im1+1,im2+1,idet,local,global);
228 xmax=global[0]; ymax=global[1];
229 local[0]= (fDetx[im1]);
230 if(im1==0) local[0]= -(fDetx[im1]);//take into account different
231 // reference system
232 g1->LtoG(im1+1,im2+1,idet,local,global);
233 xmin=global[0]; ymin=global[1];
234 fphimin[im1][im2]= TMath::ATan2(ymin,xmin);
235 if(fphimin[im1][im2]<0.) fphimin[im1][im2]+=2.*pigre;
236 fphimax[im1][im2]= TMath::ATan2(ymax,xmax);
237 if(fphimax[im1][im2]<0.) fphimax[im1][im2]+=2.*pigre;
238 } // end for im2
239 } // end for im1
64ab0d55 240//////////////////////////////////////////////////////////////////////////////////////////////////////////
241/////////////// allocate memory and define vector fNRecPoints and matrices fRecCylR, fRecCylPhi, fRecCylZ /////////////
242 gAlice->GetEvent(evnumber);
e869281d 243 Int_t numOfModules = g1->GetIndexMax();
244 fRecCylR = new Double_t *[numOfModules];
245 fRecCylPhi = new Double_t *[numOfModules];
246 fRecCylZ = new Double_t *[numOfModules];
64ab0d55 247 AliITSRecPoint *recp;
e869281d 248 fNRecPoints = new Int_t[numOfModules];
64ab0d55 249
e869281d 250 for(Int_t module=0; module<numOfModules; module++) {
7d62fb64 251 fDetTypeRec->ResetRecPoints();
252 gAlice->TreeR()->GetEvent(module);
253 frecPoints=fDetTypeRec->RecPoints();
64ab0d55 254 Int_t nRecPoints=fNRecPoints[module]=frecPoints->GetEntries();
64ab0d55 255 fRecCylR[module] = new Double_t[nRecPoints];
256 fRecCylPhi[module] = new Double_t[nRecPoints];
257 fRecCylZ[module] = new Double_t[nRecPoints];
258 Int_t ind;
259 for(ind=0; ind<fNRecPoints[module]; ind++) {
260 recp=(AliITSRecPoint*)frecPoints->UncheckedAt(ind);
261 // Float_t global[3], local[3];
262 Double_t global[3], local[3];
263 local[0]=recp->GetX();
264 local[1]=0.;
265 local[2]= recp->GetZ();
266 g1->LtoG(module,local,global);
64ab0d55 267
268 Double_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit
269 Double_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit
def162f4 270 Double_t z = global[2]; // z hit
64ab0d55 271
272 fRecCylR[module][ind]=r;
273 fRecCylPhi[module][ind]=phi;
274 fRecCylZ[module][ind]=z;
275 }
276 }
277 //}
278 //}
279////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
280
b48af428 281
282 ////////// gets magnetic field factor //////////////////////////////
283
284 AliMagF * fieldPointer = gAlice->Field();
af50998a 285 // fFieldFactor = (Double_t)fieldPointer->Factor();
286 fFieldFactor =(Double_t)fieldPointer-> SolenoidField()/10/.2;
287 // cout<< " field factor = "<<fFieldFactor<<"\n"; getchar();
7d62fb64 288 delete rl;
289
b48af428 290}
291//______________________________________________________________________
d0df5576 292AliITSTrackerV1::AliITSTrackerV1(const AliITSTrackerV1 &cobj) : TObject(cobj) {
b48af428 293 // Origin A. Badala' and G.S. Pappalardo:
294 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
295 // copy constructor
64ab0d55 296
7d62fb64 297 // *fITS = *cobj.fITS;
b48af428 298 *fresult = *cobj.fresult;
299 fPtref = cobj.fPtref;
300 fChi2max = cobj.fChi2max;
301 **fvettid = **cobj.fvettid;
302 fflagvert = cobj.fflagvert;
303 Int_t imax=200,jmax=450;
304 frl = new AliITSRad(imax,jmax);
305 *frl = *cobj.frl;
306 fFieldFactor = cobj.fFieldFactor;
307 Int_t i,im1,im2,im2max;
308 for(i=0; i<6; i++) {
309 fNlad[i] = cobj.fNlad[i];
310 fNdet[i] = cobj.fNdet[i];
311 fAvrad[i] = cobj.fAvrad[i];
312 fDetx[i] = cobj.fDetx[i];
313 fDetz[i] = cobj.fDetz[i];
314 } // end or i
315 fzmin = new Double_t*[6]; fzmax = new Double_t*[6];
316 for(im1=0; im1<6; im1++) {
317 im2max=fNdet[im1];
318 fzmin[im1] = new Double_t[im2max];
319 fzmax[im1] = new Double_t[im2max];
320 } // end for im1
cbcfa38d 321 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
b48af428 322 for(im1=0;im1<6;im1++) {
323 im2max=fNlad[im1];
324 fphimin[im1] = new Double_t[im2max];
325 fphimax[im1] = new Double_t[im2max];
326 } // end for im1
327
328 fphidet = new Double_t*[6];
329 for(im1=0; im1<6; im1++) {
330 im2max=fNlad[im1];
331 fphidet[im1] = new Double_t[im2max];
332 } // end for im1
333 for(im1=0; im1<6; im1++) {
334 im2max=fNdet[im1];
335 for(im2=0; im2<im2max; im2++) {
336 fzmin[im1][im2]=cobj.fzmin[im1][im2];
337 fzmax[im1][im2]=cobj.fzmax[im1][im2];
338 } // end for im2
339 } // end for im1
340 for(im1=0; im1<6; im1++) {
341 im2max=fNlad[im1];
342 for(im2=0; im2<im2max; im2++) {
343 fphimin[im1][im2]=cobj.fphimin[im1][im2];
344 fphimax[im1][im2]=cobj.fphimax[im1][im2];
345 fphidet[im1][im2]=cobj.fphidet[im1][im2];
346 } // end for im2
347 } // end for im2
64ab0d55 348
349
7d62fb64 350 AliRunLoader* rl = AliRunLoader::Open("galice.root");
351 rl->CdGAFile();
352 AliITSgeom* g1 = (AliITSgeom*)gDirectory->Get("AliITSgeom");
353
e869281d 354 Int_t numOfModules = g1->GetIndexMax();
64ab0d55 355 /*
e869281d 356 fRecCylR = new Float_t *[numOfModules];
357 fRecCylPhi = new Float_t *[numOfModules];
358 fRecCylZ = new Float_t *[numOfModules];
64ab0d55 359 */
e869281d 360 fRecCylR = new Double_t *[numOfModules];
361 fRecCylPhi = new Double_t *[numOfModules];
362 fRecCylZ = new Double_t *[numOfModules];
363 fNRecPoints = new Int_t[numOfModules];
364 for(Int_t module=0; module<numOfModules; module++) {
64ab0d55 365 Int_t nRecPoints=fNRecPoints[module]=cobj.fNRecPoints[module];
366 /*
367 fRecCylR[module] = new Float_t[nRecPoints];
368 fRecCylPhi[module] = new Float_t[nRecPoints];
369 fRecCylZ[module] = new Float_t[nRecPoints];
370 */
371 fRecCylR[module] = new Double_t[nRecPoints];
372 fRecCylPhi[module] = new Double_t[nRecPoints];
373 fRecCylZ[module] = new Double_t[nRecPoints];
374 Int_t ind;
375 for(ind=0; ind<nRecPoints; ind++) {
376 fRecCylR[module][ind]=cobj.fRecCylR[module][ind];
377 fRecCylPhi[module][ind]=cobj.fRecCylPhi[module][ind];
378 fRecCylZ[module][ind]=cobj.fRecCylZ[module][ind];
379 }
380 }
7d62fb64 381 delete rl;
64ab0d55 382
383}
e869281d 384/*
385//______________________________________________________________________
386void AliITSTrackerV1::DelMatrix(Int_t numOfModules) {
387 // cleanup of some data members
388 for(Int_t mod=0; mod<numOfModules; mod++) {
64ab0d55 389 delete fRecCylR[mod];
390 delete fRecCylPhi[mod];
391 delete fRecCylZ[mod];
392 }
393 delete fRecCylR;
394 delete fRecCylPhi;
395 delete fRecCylZ;
cbcfa38d 396}
e869281d 397*/
b48af428 398//______________________________________________________________________
cbcfa38d 399AliITSTrackerV1::~AliITSTrackerV1(){
b48af428 400 // Origin A. Badala' and G.S. Pappalardo:
401 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
64ab0d55 402 // class destructor
403 delete frl;
404 delete fNRecPoints;
405 for(Int_t i=0; i<6; i++) {
406 delete fzmin[i];
407 delete fzmax[i];
408 delete fphimin[i];
409 delete fphimax[i];
410 delete fphidet[i];
411 }
412
413 delete fzmin;
414 delete fzmax;
415 delete fphimin;
416 delete fphimax;
417 delete fphidet;
418
13888096 419}
b48af428 420//______________________________________________________________________
e869281d 421AliITSTrackerV1 &AliITSTrackerV1::operator=(const AliITSTrackerV1 &obj) {
b48af428 422 // Origin A. Badala' and G.S. Pappalardo:
423 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
424 // assignement operator
425
7d62fb64 426 // *fITS = *obj.fITS;
b48af428 427 *fresult = *obj.fresult;
428 fPtref = obj.fPtref;
429 fChi2max = obj.fChi2max;
430 **fvettid = **obj.fvettid;
431 fflagvert = obj.fflagvert;
432 Int_t imax=200,jmax=450;
433 frl = new AliITSRad(imax,jmax);
434 *frl = *obj.frl;
435 fFieldFactor = obj.fFieldFactor;
436 Int_t i;
437 for(i=0; i<6; i++) {
438 fNlad[i] = obj.fNlad[i];
439 fNdet[i] = obj.fNdet[i];
440 fAvrad[i] = obj.fAvrad[i];
441 fDetx[i] = obj.fDetx[i];
442 fDetz[i] = obj.fDetz[i];
443 } // end for i
444 fzmin = new Double_t*[6];
445 fzmax = new Double_t*[6];
446 Int_t im1, im2, im2max;
447 for(im1=0; im1<6; im1++) {
448 im2max=fNdet[im1];
449 fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max];
450 } // end for im1
cbcfa38d 451 fphimin = new Double_t*[6]; fphimax = new Double_t*[6];
b48af428 452 for(im1=0;im1<6;im1++) {
453 im2max=fNlad[im1];
454 fphimin[im1] = new Double_t[im2max];
455 fphimax[im1] = new Double_t[im2max];
456 } // end for im1
457
458 fphidet = new Double_t*[6];
459 for(im1=0; im1<6; im1++) {
460 im2max=fNlad[im1];
461 fphidet[im1] = new Double_t[im2max];
462 } // end for im1
463 for(im1=0; im1<6; im1++) {
464 im2max=fNdet[im1];
465 for(im2=0; im2<im2max; im2++) {
466 fzmin[im1][im2]=obj.fzmin[im1][im2];
467 fzmax[im1][im2]=obj.fzmax[im1][im2];
468 } // end for im2
469 } // end for im1
470 for(im1=0; im1<6; im1++) {
471 im2max=fNlad[im1];
472 for(im2=0; im2<im2max; im2++) {
473 fphimin[im1][im2]=obj.fphimin[im1][im2];
474 fphimax[im1][im2]=obj.fphimax[im1][im2];
475 fphidet[im1][im2]=obj.fphidet[im1][im2];
476 } // end for im2
477 } // end for im1
478
7d62fb64 479 AliRunLoader* rl = AliRunLoader::Open("galice.root");
480 rl->CdGAFile();
481 AliITSgeom* g1 = (AliITSgeom*)gDirectory->Get("AliITSgeom");
482 // AliITSgeom *g1 = fITS->GetITSgeom();
e869281d 483 Int_t numOfModules = g1->GetIndexMax();
484 fRecCylR = new Double_t *[numOfModules];
485 fRecCylPhi = new Double_t *[numOfModules];
486 fRecCylZ = new Double_t *[numOfModules];
487 fNRecPoints = new Int_t[numOfModules];
488 for(Int_t module=0; module<numOfModules; module++) {
64ab0d55 489 Int_t nRecPoints=fNRecPoints[module]=obj.fNRecPoints[module];
64ab0d55 490 fRecCylR[module] = new Double_t[nRecPoints];
491 fRecCylPhi[module] = new Double_t[nRecPoints];
492 fRecCylZ[module] = new Double_t[nRecPoints];
493 Int_t ind;
494 for(ind=0; ind<nRecPoints; ind++) {
495 fRecCylR[module][ind]=obj.fRecCylR[module][ind];
496 fRecCylPhi[module][ind]=obj.fRecCylPhi[module][ind];
497 fRecCylZ[module][ind]=obj.fRecCylZ[module][ind];
498 }
499 }
500
501
7d62fb64 502 delete rl;
b48af428 503 return *this;
04b80329 504}
b48af428 505//______________________________________________________________________
506void AliITSTrackerV1::DoTracking(Int_t evNumber,Int_t minTr,Int_t maxTr,
61231d74 507 TFile *file, Bool_t realmass) {
b48af428 508 // Origin A. Badala' and G.S. Pappalardo:
509 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
510 // The method needs the event number, the minimum and maximum order
511 // number of TPC tracks that
512 // are to be tracked trough the ITS, and the file where the recpoints
513 // are registered.
514 // The method can be called by a macro. It preforms the tracking for
515 // all good TPC tracks
516
e81f4d4f 517 printf("begin DoTracking - file %p\n",(void*)file);
b48af428 518
519 gAlice->GetEvent(evNumber); //modificato per gestire hbt
13888096 520
c84a5e9e 521 AliKalmanTrack::SetFieldMap(gAlice->Field());
af50998a 522 // cout<<" field = "<<gAlice->Field()->SolenoidField()<<endl;
523
b48af428 524
525 TFile *cf=TFile::Open("AliTPCclusters.root");
9040b789 526 AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60_150x60");
b48af428 527 if (!digp) { cerr<<"TPC parameters have not been found !\n"; getchar();}
528
529 cf->cd();
7d62fb64 530 AliRunLoader* rl = AliRunLoader::Open("galice.root");
531 AliITSLoader* itsl = (AliITSLoader*)rl->GetLoader("ITSLoader");
532 TString foldname(itsl->GetEventFolder()->GetName());
533 //TString foldname(fITS->GetLoader()->GetEventFolder()->GetName());
534 delete rl;
c630aafd 535 printf("This method is not converted to the NewIO !\n"); //I.B.
536 return; //I.B.
537 AliTPCtracker *tracker = new AliTPCtracker(digp); //I.B.
88cb7938 538 //PH tracker->SetEventNumber(evNumber); //I.B.
b48af428 539
540 // Load clusters
c630aafd 541 printf("This method is not converted to the NewIO !\n"); //I.B.
542 return; //I.B.
543 tracker->LoadClusters(0); //I.B.
b48af428 544
545 // Load tracks
64ab0d55 546 TFile *tf=TFile::Open("AliTPCtracksSorted.root");
b48af428 547 if (!tf->IsOpen()) {
548 cerr<<"Can't open AliTPCtracksSorted.root !\n";
549 return ;
550 } // end if
551 TObjArray tracks(200000);
552 char tname[100];
553 sprintf(tname,"TreeT_TPC_%d",evNumber);
554
555 TTree *tracktree=(TTree*)tf->Get(tname);
556 if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n";}
557 TBranch *tbranch=tracktree->GetBranch("tracks");
558 Int_t nentr=(Int_t)tracktree->GetEntries();
559 Int_t kk;
560
def162f4 561 AliITSRecPoint *recp; // oggi
562 AliTPCtrack *ioTrackTPC=0;
b48af428 563 for (kk=0; kk<nentr; kk++) {
564 ioTrackTPC=new AliTPCtrack;
565 tbranch->SetAddress(&ioTrackTPC);
566 tracktree->GetEvent(kk);
567 tracker->CookLabel(ioTrackTPC,0.1);
568 tracks.AddLast(ioTrackTPC);
569 } // end for kk
570 delete tracker;
571 tf->Close();
572
573 Int_t nt = tracks.GetEntriesFast();
574 cerr<<"Number of found tracks "<<nt<<endl;
575
576 TVector vec(5);
577 TTree *tr=gAlice->TreeR();
578 Int_t nent=(Int_t)tr->GetEntries();
7d62fb64 579 frecPoints = fDetTypeRec->RecPoints();
b48af428 580
581 Int_t numbpoints;
582 Int_t totalpoints=0;
583 Int_t *np = new Int_t[nent];
584 fvettid = new Int_t* [nent];
585 Int_t mod;
586
587 for (mod=0; mod<nent; mod++) {
588 fvettid[mod]=0;
7d62fb64 589 fDetTypeRec->ResetRecPoints();
b48af428 590 gAlice->TreeR()->GetEvent(mod);
591 numbpoints = frecPoints->GetEntries();
592 totalpoints+=numbpoints;
593 np[mod] = numbpoints;
594 //cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n";getchar();
595 fvettid[mod] = new Int_t[numbpoints];
596 Int_t ii;
597 for (ii=0;ii<numbpoints; ii++) *(fvettid[mod]+ii)=0;
598 } // end for mod
599
600 AliTPCtrack *track=0;
601
602 if(minTr < 0) {minTr = 0; maxTr = nt-1;}
603
604 TVector vgeant(3);
605
606 TTree tracktree1("TreeT","Tree with ITS tracks");
607 AliITSIOTrack *ioTrack=0;
def162f4 608 AliITSPid *pid=new AliITSPid(1000); // oggi
609
b48af428 610 tracktree1.Branch("ITStracks","AliITSIOTrack",&ioTrack,32000,0);
611
def162f4 612 TDatabasePDG * db = new TDatabasePDG;
61231d74 613
b48af428 614 Int_t j;
615 for (j=minTr; j<=maxTr; j++) {
616 track=(AliTPCtrack*)tracks.UncheckedAt(j);
617 if (!track) continue;
61231d74 618
619 /// mass definition ////////////////////////
620 Double_t mass=0.13956995;
621 Int_t pcode=211; // a pion by default
def162f4 622
61231d74 623 if(realmass) {
def162f4 624 if(TMath::Abs(pcode)<20443) mass=db->GetParticle(pcode)->Mass();
61231d74 625 }
def162f4 626 else {
627 mass = track->GetMass();
e286bade 628// cout << "Mass = " << mass << endl;
def162f4 629 }
630
61231d74 631
632
d3ab000e 633 // new propagation to the end of TPC
64ab0d55 634 Double_t xk=80.;
635 // track->PropagateTo(xk,0.,0.); //Ne if it's still there //attenzione funziona solo se modifica in TPC
636 // Double_t xk=77.415;
d3ab000e 637 track->PropagateTo(xk, 28.94, 1.204e-3);
638 xk-=0.005;
639 track->PropagateTo(xk, 44.77,1.71); //Tedlar
640 xk-=0.02;
641 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
642 xk-=2.0;
643 track->PropagateTo(xk, 41.28, 0.029);//Nomex
644 xk-=0.02;
645 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
646 xk-=0.005;
647 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
648
649 xk=61.;
64ab0d55 650 // track->PropagateTo(xk,0.,0.); //C02
651 track->PropagateTo(xk,36.2,1.98e-3); //C02 //attenzione funziona solo se modifica in TPC
d3ab000e 652
653 xk -=0.005;
654 track->PropagateTo(xk, 24.01, 2.7); //Al
655 xk -=0.005;
656 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
657 xk -=0.02;
658 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
659 xk -=0.5;
660 track->PropagateTo(xk, 41.28, 0.029); //Nomex
661 xk -=0.02;
662 track->PropagateTo(xk, 44.86, 1.45); //Kevlar
663 xk -=0.005;
664 track->PropagateTo(xk, 44.77, 1.71); //Tedlar
665 xk -=0.005;
64ab0d55 666 track->PropagateTo(xk, 24.01, 2.7); //Al
af50998a 667
64ab0d55 668 ////////////////////////////////////////////////////////////////////////////////////////////////////////
af50998a 669 //AliITSTrackV1 trackITS(*track);
670 AliITSTrackV1 trackITS(*track, fFieldFactor);
671 //cout<<" fFieldFactor = "<<fFieldFactor<<"\n";
61231d74 672 trackITS.PutMass(mass); //new to add mass to track
b48af428 673 if(fresult){ delete fresult; fresult=0;}
674 fresult = new AliITSTrackV1(trackITS);
675
676 AliITSTrackV1 primaryTrack(trackITS);
677 vgeant=(*fresult).GetVertex();
678
679 // Definition of dv and zv for vertex constraint
680 Double_t sigmaDv=0.0050; Double_t sigmaZv=0.010;
681 //Double_t sigmaDv=0.0015; Double_t sigmaZv=0.0015;
13888096 682 Double_t uniform= gRandom->Uniform();
683 Double_t signdv;
684 if(uniform<=0.5) signdv=-1.;
b48af428 685 else
686 signdv=1.;
687
04b80329 688 Double_t vr=TMath::Sqrt(vgeant(0)*vgeant(0)+ vgeant(1)*vgeant(1));
b48af428 689 Double_t dv=gRandom->Gaus(signdv*vr,(Float_t)sigmaDv);
690 Double_t zv=gRandom->Gaus(vgeant(2),(Float_t)sigmaZv);
691 //cout<<" Dv e Zv = "<<dv<<" "<<zv<<"\n";
692 trackITS.SetDv(dv);
693 trackITS.SetZv(zv);
694 trackITS.SetsigmaDv(sigmaDv);
695 trackITS.SetsigmaZv(sigmaZv);
696 (*fresult).SetDv(dv);
697 (*fresult).SetZv(zv);
698 (*fresult).SetsigmaDv(sigmaDv);
699 (*fresult).SetsigmaZv(sigmaZv);
700 primaryTrack.SetDv(dv);
701 primaryTrack.SetZv(zv);
702 primaryTrack.SetsigmaDv(sigmaDv);
703 primaryTrack.SetsigmaZv(sigmaZv);
088e0b8d 704 primaryTrack.PrimaryTrack();
b48af428 705 TVector d2=primaryTrack.Getd2();
706 TVector tgl2=primaryTrack.Gettgl2();
707 TVector dtgl=primaryTrack.Getdtgl();
708 trackITS.Setd2(d2); trackITS.Settgl2(tgl2);
709 trackITS.Setdtgl(dtgl);
710 (*fresult).Setd2(d2); (*fresult).Settgl2(tgl2);
711 (*fresult).Setdtgl(dtgl);
712 /*
713 trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex);
714 (*result).SetVertex(vertex); (*result).SetErrorVertex(ervertex);
715 */
716 TList *list= new TList();
717
718 list->AddLast(&trackITS);
719
720 fPtref=TMath::Abs( (trackITS).GetPt() );
af50998a 721 //cout<<" fPtref = " <<fPtref<<"\n";
b48af428 722 if(fPtref>1.0) fChi2max=40.;
723 if(fPtref<=1.0) fChi2max=20.;
724 if(fPtref<0.4 ) fChi2max=100.;
725 if(fPtref<0.2 ) fChi2max=40.;
726 // if(fPtref<0.4 ) fChi2max=30.;
727 // if(fPtref<0.2 ) fChi2max=20.;
728 //if(fPtref<0.2 ) fChi2max=10.;
729 //if(fPtref<0.1 ) fChi2max=5.;
c57de405 730 //cout << "\n Pt = " << fPtref <<"\n"; //stampa
b48af428 731 RecursiveTracking(list);
732 list->Delete();
733 delete list;
734
735 Int_t itot=-1;
736 TVector vecTotLabRef(18);
737 Int_t lay, k;
738 for(lay=5; lay>=0; lay--) {
739 TVector vecLabRef(3);
740 vecLabRef=(*fresult).GetLabTrack(lay);
741 Float_t clustZ=(*fresult).GetZclusterTrack( lay);
742 for(k=0; k<3; k++){
04b80329 743 Int_t lpp=(Int_t)vecLabRef(k);
744 if(lpp>=0) {
5d12ce38 745 TParticle *p=(TParticle*) gAlice->GetMCApp()->Particle(lpp);
b48af428 746 Int_t pcode=p->GetPdgCode();
747 if(pcode==11) vecLabRef(k)=p->GetFirstMother();
748 } // end if
749 itot++; vecTotLabRef(itot)=vecLabRef(k);
64ab0d55 750 if(vecLabRef(k)==0. && clustZ == -1.) vecTotLabRef(itot) =-3.;
b48af428 751 } // end for k
752 } // end for lay
753 Long_t labref;
754 Int_t freq;
755 (*fresult).Search(vecTotLabRef, labref, freq);
756
757 //if(freq < 6) labref=-labref; // cinque - sei
758 if(freq < 5) labref=-labref; // cinque - sei
759 (*fresult).SetLabel(labref);
760
761 // cout<<" progressive track number = "<<j<<"\r";
762 // cout<<j<<"\r";
763 Int_t numOfCluster=(*fresult).GetNumClust();
c57de405 764 //cout<<" progressive track number = "<<j<<"\n"; // stampa
b48af428 765 Long_t labITS=(*fresult).GetLabel();
c57de405 766 //cout << " ITS track label = " << labITS << "\n"; // stampa
b48af428 767 Int_t lab=track->GetLabel();
c57de405 768 //cout << " TPC track label = " << lab <<"\n"; // stampa
b48af428 769 //propagation to vertex
770
771 Double_t rbeam=3.;
def162f4 772 if((*fresult).DoNotCross(rbeam)) continue; //no intersection with beampipe
b48af428 773 (*fresult).Propagation(rbeam);
774 Double_t c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44;
775 (*fresult).GetCElements(c00,
776 c10,c11,
777 c20,c21,c22,
778 c30,c31,c32,c33,
779 c40,c41,c42,c43,c44);
13888096 780
b48af428 781 Double_t pt=TMath::Abs((*fresult).GetPt());
782 Double_t dr=(*fresult).GetD();
783 Double_t z=(*fresult).GetZ();
784 Double_t tgl=(*fresult).GetTgl();
785 Double_t c=(*fresult).GetC();
786 Double_t cy=c/2.;
787 Double_t dz=z-(tgl/cy)*TMath::ASin((*fresult).Arga(rbeam));
788 dz-=vgeant(2);
789 // cout<<" dr e dz alla fine = "<<dr<<" "<<dz<<"\n"; getchar();
790 Double_t phi=(*fresult).Getphi();
791 Double_t phivertex = phi - TMath::ASin((*fresult).ArgA(rbeam));
792 Double_t duepi=2.*TMath::Pi();
793 if(phivertex>duepi) phivertex-=duepi;
794 if(phivertex<0.) phivertex+=duepi;
795 /////////////////////////////////////////////////////////////
796 Int_t idmodule,idpoint;
797 if(numOfCluster >=5) { // cinque - sei
798 //if(numOfCluster ==6) { // cinque - sei
799 AliITSIOTrack outTrack;
800 ioTrack=&outTrack;
801 ioTrack->SetStatePhi(phi);
802 ioTrack->SetStateZ(z);
803 ioTrack->SetStateD(dr);
804 ioTrack->SetStateTgl(tgl);
805 ioTrack->SetStateC(c);
806 Double_t radius=(*fresult).Getrtrack();
807 ioTrack->SetRadius(radius);
808 Int_t charge;
809 if(c>0.) charge=-1; else charge=1;
810 ioTrack->SetCharge(charge);
def162f4 811 Double_t trackmass=(*fresult).GetMass(); // oggi
812 ioTrack->SetMass(trackmass); // oggi
b48af428 813 ioTrack->SetCovMatrix(c00,
814 c10,c11,
815 c20,c21,c22,
816 c30,c31,c32,c33,
817 c40,c41,c42,c43,c44);
818 Double_t px=pt*TMath::Cos(phivertex);
819 Double_t py=pt*TMath::Sin(phivertex);
820 Double_t pz=pt*tgl;
821 Double_t xtrack=dr*TMath::Sin(phivertex);
822 Double_t ytrack=dr*TMath::Cos(phivertex);
823 Double_t ztrack=dz+vgeant(2);
824 ioTrack->SetPx(px);
825 ioTrack->SetPy(py);
826 ioTrack->SetPz(pz);
827 ioTrack->SetX(xtrack);
828 ioTrack->SetY(ytrack);
829 ioTrack->SetZ(ztrack);
830 ioTrack->SetLabel(labITS);
831 ioTrack->SetTPCLabel(lab);
61231d74 832 ioTrack->SetDz(dz);
b48af428 833 Int_t il;
def162f4 834 /*
835 for(il=0;il<6; il++){
b48af428 836 ioTrack->SetIdPoint(il,(*fresult).GetIdPoint(il));
837 ioTrack->SetIdModule(il,(*fresult).GetIdModule(il));
838 } // end for il
def162f4 839 */
840 //tracktree1.Fill();
841 Float_t q[4]={-1.,-1.,-1.,-1.};
842 Float_t globaldedx=0.;
b48af428 843 for (il=0;il<6;il++) {
844 idpoint=(*fresult).GetIdPoint(il);
845 idmodule=(*fresult).GetIdModule(il);
61231d74 846 if(idmodule>0.) *(fvettid[idmodule]+idpoint)=1;
847
b48af428 848 ioTrack->SetIdPoint(il,idpoint);
849 ioTrack->SetIdModule(il,idmodule);
def162f4 850 //// for q definition
851 if(il>1){
852 if(idmodule>0.){
7d62fb64 853 fDetTypeRec->ResetRecPoints();
def162f4 854 gAlice->TreeR()->GetEvent(idmodule);
855 recp=(AliITSRecPoint*)frecPoints->UncheckedAt(idpoint);
856 q[il-2]=recp->GetQ()*(*fresult).Getfcor(il-2);
857 }
858 }
859 } // end for il
860 q[0]/=280.; q[1]/=280.;
861 q[2]/=38.; q[3]/=38.;
862
863 // cout<<" q prima = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
864
865 Int_t swap;
866 do{
867 swap=0;
868 for (il=0; il<3; il++) {
869 if (q[il]<=q[il+1]) continue;
870 Float_t tmp=q[il];
871 q[il]=q[il+1]; q[il+1]=tmp;
872 swap++;
873 }
874 } while(swap);
875
876
877 // cout<<" q dopo = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
878
879 if(q[0]<0.) {
880 q[0]=q[1];
881 q[1]=q[2];
882 q[2]=q[3];
883 q[3]=-1.;
884 }
885
886 // cout<<" q dopo if = "<<q[0]<<" "<<q[1]<<" "<<q[2]<<" "<<q[3]<<"\n"; getchar();
887
888 globaldedx=(q[0]+q[1])/2.;
889
890 // if(q[3]> 0.) globaldedx=(q[0]+q[1]+q[2]+q[3])/4.;
891 // else globaldedx=(q[0]+q[1]+q[2])/3.;
892
893 ioTrack->SetdEdx(globaldedx);
894 ioTrack->SetPid(pid->GetPcode(ioTrack));
895
896 tracktree1.Fill();
b48af428 897 } // end if on numOfCluster
898 //gObjectTable->Print(); // stampa memoria
899 } // end for (int j=minTr; j<=maxTr; j++)
61231d74 900 delete db;
b48af428 901 static Bool_t first=kTRUE;
902 static TFile *tfile;
903 if(first) {
904 tfile=new TFile("itstracks.root","RECREATE");
905 //cout<<"I have opened itstracks.root file "<<endl;
906 } // end if
907 first=kFALSE;
908 tfile->cd();
909 tfile->ls();
910 char hname[30];
911 sprintf(hname,"TreeT%d",evNumber);
def162f4 912 cout << "Number of saved ITS tracks " << tracktree1.GetEntries() << endl;
b48af428 913 tracktree1.Write(hname);
914
915 TTree *fAli=gAlice->TreeK();
916 TFile *fileAli=0;
917 if (fAli) fileAli =fAli->GetCurrentFile();
918 fileAli->cd();
919 ////////////////////////////////////////////////////////////////////
920
921 printf("delete vectors\n");
922 if(np) delete [] np;
923 if(fvettid) delete [] fvettid;
924 if(fresult) {delete fresult; fresult=0;}
04b80329 925}
b48af428 926//______________________________________________________________________
04b80329 927void AliITSTrackerV1::RecursiveTracking(TList *trackITSlist) {
b48af428 928 // This function perform the recursive tracking in ITS detectors
929 // reference is a pointer to the final best track
930 // Origin A. Badala' and G.S. Pappalardo:
931 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
932 // The authors thank Mariana Bondila to have help them to resolve some
933 // problems. July-2000
934
935 //Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9;
936 // Rlayer[3]=23.8; Rlayer[4]=39.1; Rlayer[5]=43.6; //vecchio
937
938 //////////////////////
939 Float_t sigmaphil[6], sigmazl[6];
940 sigmaphil[0]=1.44e-6/(fAvrad[0]*fAvrad[0]);
941 sigmaphil[1]=1.44e-6/(fAvrad[1]*fAvrad[1]);
942 sigmaphil[2]=1.444e-5/(fAvrad[2]*fAvrad[2]);
943 sigmaphil[3]=1.444e-5/(fAvrad[3]*fAvrad[3]);
944 sigmaphil[4]=4e-6/(fAvrad[4]*fAvrad[4]);
945 sigmaphil[5]=4e-6/(fAvrad[5]*fAvrad[5]);
946 sigmazl[0]=1e-2;
947 sigmazl[1]=1e-2;
948 sigmazl[2]=7.84e-4;
949 sigmazl[3]=7.84e-4;
950 sigmazl[4]=0.6889;
951 sigmazl[5]=0.6889;
952 ///////////////////////////////////////////////////////////
953 Int_t index;
7d62fb64 954 AliRunLoader* rl = AliRunLoader::Open("galice.root");
955 rl->CdGAFile();
956 AliITSgeom* g1 = (AliITSgeom*)gDirectory->Get("AliITSgeom");
957
b48af428 958 AliITSRecPoint *recp;
959 for(index =0; index<trackITSlist->GetSize(); index++) {
960 AliITSTrackV1 *trackITS = (AliITSTrackV1 *) trackITSlist->At(index);
961 if((*trackITS).GetLayer()==7) fresult->SetChi2(10.223e140);
962 // cout <<" Layer inizio = "<<(*trackITS).GetLayer()<<"\n";
963 // cout<<"fvtrack =" <<"\n";
964 // cout << (*trackITS)(0) << " "<<(*trackITS)(1)<<" "
965 // <<(*trackITS)(2)<<" "<<(*trackITS)(3)<<" "
966 // <<(*trackITS)(4)<<"\n";
967 // cout<< " rtrack = "<<(*trackITS).Getrtrack()<<"\n";
968 // cout<< " Pt = "<<(*trackITS).GetPt()<<"\n";
969 // getchar();
970 Double_t chi2Now, chi2Ref;
971 Float_t numClustRef = fresult->GetNumClust();
972 if((*trackITS).GetLayer()==1 ) {
973 chi2Now = trackITS->GetChi2();
974 Float_t numClustNow = trackITS->GetNumClust();
975 if(trackITS->GetNumClust())
976 chi2Now /= (Double_t)trackITS->GetNumClust();
977 chi2Ref = fresult->GetChi2();
978 if(fresult->GetNumClust())
979 chi2Ref /= (Double_t)fresult->GetNumClust();
980 //cout<<" chi2Now and chi2Ref = "<<chi2Now<<" "<<chi2Ref<<"\n";
981 if( numClustNow > numClustRef ) {*fresult = *trackITS;}
982 if((numClustNow == numClustRef )&&
983 (chi2Now < chi2Ref)) {
984 *fresult = *trackITS;
985 } // end if
986 continue;
987 } // end if
988
989 if(trackITS->Getfnoclust()>=2) continue;
990 Float_t numClustNow = trackITS->GetNumClust();
991 if(numClustNow) {
992 chi2Now = trackITS->GetChi2();
993
994 if(numClustNow<numClustRef && chi2Now>fresult->GetChi2()) continue;
995 //cout<<" chi2Now = "<<chi2Now<<"\n";
64ab0d55 996
b48af428 997 chi2Now/=numClustNow;
998 if(fPtref > 1.0 && chi2Now > 30.) continue;
999 if((fPtref >= 0.6 && fPtref<=1.0) && chi2Now > 40.) continue;
1000 // if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 40.) continue;
1001 // if(fPtref <= 0.2 && chi2Now > 8.) continue;
1002 if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 30.) continue;
1003 if(fPtref <= 0.2 && chi2Now > 7.) continue;
1004 /////////////////////////////
1005 } // end if
1006
1007 Int_t layerInit = (*trackITS).GetLayer();
1008 Int_t layernew = layerInit - 2;// -1 for new layer, -1 for matrix index
1009 TList listoftrack;
1010 Int_t ladp, ladm, detp,detm,ladinters,detinters;
1011 Int_t layerfin=layerInit-1;
1012 // cout<<"Prima di intersection \n";
b48af428 1013 Int_t outinters=Intersection(*trackITS,layerfin,ladinters,detinters);
b48af428 1014 // cout<<" outinters = "<<outinters<<"\n";
1015 // cout<<" Layer ladder detector intersection ="
1016 // <<layerfin<<" "<<ladinters<<" "<<detinters<<"\n";
1017 // cout << " phiinters zinters = "<<(*trackITS)(0)
1018 // << " "<<(*trackITS)(1)<<"\n"; getchar();
1019 if(outinters==-1) continue;
1020 Int_t flaghit=0;
def162f4 1021 (*trackITS).SetLayer(layerfin); // oggi
1022 (*trackITS).Setfcor(); // oggi
b48af428 1023 if(outinters==0){
1024 TVector toucLad(9), toucDet(9);
1025 Int_t lycur=layerfin;
1026 ladp=ladinters+1;
1027 ladm=ladinters-1;
1028 if(ladm <= 0) ladm=fNlad[layerfin-1];
1029 if(ladp > fNlad[layerfin-1]) ladp=1;
1030 detp=detinters+1;
1031 detm=detinters-1;
1032 Int_t idetot=1;
1033 /*
1034 toucLad(0)=ladinters; toucLad(1)=ladm; toucLad(2)=ladp;
1035 toucLad(3)=ladinters; toucLad(4)=ladm; toucLad(5)=ladp;
1036 toucLad(6)=ladinters; toucLad(7)=ladm; toucLad(8)=ladp;
1037 toucDet(0)=detinters; toucDet(1)=detinters; toucDet(2)=detinters;
1038 if(detm > 0 && detp <= fNdet[layerfin-1]) {
1039 idetot=9;
1040 toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
1041 toucDet(6)=detp; toucDet(7)=detp; toucDet(8)=detp;
1042 } // end if
1043 if(detm > 0 && detp > fNdet[layerfin-1]) {
1044 idetot=6;
1045 toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm;
1046 } // end if
1047 if(detm <= 0 && detp <= fNdet[layerfin-1]) {
1048 idetot=6;
1049 toucDet(3)=detp; toucDet(4)=detp; toucDet(5)=detp;
1050 } // end if
1051 */
f66ae545 1052 Float_t epsphi=5.0, epsz=5.0;
b48af428 1053 if(fPtref<0.2) {epsphi=3.; epsz=3.;}
64ab0d55 1054 // new definition of idetot e toucLad e toucDet to be
b48af428 1055 // transformed in a method
1056 // these values could be modified
1057 Float_t pigre=TMath::Pi();
1058 Float_t rangephi=5., rangez=5.;
1059 if(layerfin==1 || layerfin ==2){
1060 rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1061 (*trackITS).GetSigmaphi());
1062 rangez = 40.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1063 (*trackITS).GetSigmaZ());
1064 } // end if
1065 if(layerfin==3 || layerfin ==4){
1066 //rangephi=30.*fepsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1067 // (*trackITS).GetSigmaphi());
1068 //rangez = 40.*fepsz*TMath::Sqrt(sigmazl[layerfin-1]+
1069 // (*trackITS).GetSigmaZ());
1070 rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1071 (*trackITS).GetSigmaphi());
1072 rangez = 50.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1073 (*trackITS).GetSigmaZ());
1074 } // end if
1075 if(layerfin==5 || layerfin ==6){
1076 rangephi=20.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+
1077 (*trackITS).GetSigmaphi());
1078 rangez =5.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+
1079 (*trackITS).GetSigmaZ());
1080 } // end if
1081 Float_t phinters, zinters;
1082 phinters=(*trackITS).Getphi();
1083 zinters=(*trackITS).GetZ();
1084 Float_t distz = 0.0;
1085 Float_t phicm, phicp, distphim, distphip;
1086 phicm=phinters;
cf411bb5 1087 if(phinters>fphimax[layerfin-1][ladm-1]) phicm=phinters-2*pigre; //corretto il 20-11-2001
1088 distphim=TMath::Abs(phicm-fphimax[layerfin-1][ladm-1]); //corretto il 20-11-2001
b48af428 1089 phicp=phinters;
cf411bb5 1090 //cout<<" fNlad[layerfin-1] e ladp = "<<fNlad[layerfin-1]<<" "<<ladp<<endl;
1091 if(phinters>fphimin[layerfin-1][ladp-1]) phicp=phinters-2.*pigre; //corretto il 20-11-2001
1092 distphip=TMath::Abs(phicp-fphimin[layerfin-1][ladp-1]); //corretto il 20-11-2001
b48af428 1093 Int_t flagzmin=0;
1094 Int_t flagzmax=0;
1095 idetot=1;
1096 toucLad(0)=ladinters; toucDet(0)=detinters;
1097 if(detm>0) distz=TMath::Abs(zinters-fzmax[layerfin-1][detm-1]);
1098 if(detm>0 && rangez>=distz){
1099 flagzmin=1;
1100 idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detm;
1101 if(rangephi>=distphim){
1102 idetot++;
1103 toucLad(idetot-1)=ladm;
1104 toucDet(idetot-1)=detinters;
1105 idetot++;
1106 toucLad(idetot-1)=ladm;
1107 toucDet(idetot-1)=detm;
1108 } // end if
1109 if(rangephi>=distphip){
1110 idetot++;
1111 toucLad(idetot-1)=ladp;
1112 toucDet(idetot-1)=detinters;
1113 idetot++;
1114 toucLad(idetot-1)=ladp;
1115 toucDet(idetot-1)=detm;
1116 } // end if
1117 } //end detm>0....
1118 if(detp<=fNdet[layerfin-1])
1119 distz=TMath::Abs(zinters-fzmin[layerfin-1][detp-1]);
1120 if(detp<=fNdet[layerfin-1] && rangez>=distz){
1121 flagzmax=1;
1122 idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detp;
1123 if(rangephi>=distphim){
1124 idetot++; toucLad(idetot-1)=ladm; toucDet(idetot-1)=detp;
1125 if(flagzmin == 0) {
1126 idetot++;
1127 toucLad(idetot-1)=ladm;
1128 toucDet(idetot-1)=detinters;
1129 } // end if
1130 } // end if
1131 if(rangephi>=distphip){
1132 idetot++;
1133 toucLad(idetot-1)=ladp;
1134 toucDet(idetot-1)=detp;
1135 if(flagzmin == 0) {
1136 idetot++;
1137 toucLad(idetot-1)=ladp;
1138 toucDet(idetot-1)=detinters;
1139 } // end if
1140 } // end if
1141 } //end detm<fNdet[.......
1142
1143 if(flagzmin == 0 && flagzmax==0){
1144 if(rangephi>=distphim){
1145 idetot++;
1146 toucLad(idetot-1)=ladm;
1147 toucDet(idetot-1)=detinters;
1148 } // end if
1149 if(rangephi>=distphip){
1150 idetot++;
1151 toucLad(idetot-1)=ladp;
1152 toucDet(idetot-1)=detinters;
1153 } // end if
1154 } // end if
1155 ////////////////////////////////////////////////////////////
1156 Int_t iriv;
1157 for (iriv=0; iriv<idetot; iriv++) { //for on detectors
1158 ///////////////////////////////////////////////////////
1159 /*** Rec points sorted by module *****/
1160 /**************************************/
64ab0d55 1161 Int_t indexmod;
b48af428 1162 indexmod = g1->GetModuleIndex(lycur,(Int_t)toucLad(iriv),
64ab0d55 1163 (Int_t)toucDet(iriv));
7d62fb64 1164 fDetTypeRec->ResetRecPoints();
b48af428 1165 gAlice->TreeR()->GetEvent(indexmod);
1166 Int_t npoints=frecPoints->GetEntries();
64ab0d55 1167
b48af428 1168 Int_t indnew;
1169 for(indnew=0; indnew<npoints; indnew++){
1170 if (*(fvettid[indexmod]+indnew)==0)
1171 recp =(AliITSRecPoint*)frecPoints->UncheckedAt(indnew);
1172 else
f66ae545 1173 continue;
b48af428 1174 TVector cluster(3),vecclust(9);
64ab0d55 1175 //vecclust(6)=vecclust(7)=vecclust(8)=-1.;
1176 Double_t sigma[2];
1177 // now vecclust is with cylindrical cohordinates
1178 vecclust(0)=(Float_t)fRecCylR[indexmod][indnew];
1179 vecclust(1)=(Float_t)fRecCylPhi[indexmod][indnew];
1180 vecclust(2)=(Float_t)fRecCylZ[indexmod][indnew];
b48af428 1181 vecclust(3) = (Float_t)recp->fTracks[0];
b48af428 1182 vecclust(4) = (Float_t)indnew;
64ab0d55 1183 vecclust(5) = (Float_t)indexmod;
b48af428 1184 vecclust(6) = (Float_t)recp->fTracks[0];
1185 vecclust(7) = (Float_t)recp->fTracks[1];
1186 vecclust(8) = (Float_t)recp->fTracks[2];
1187 sigma[0] = (Double_t) recp->GetSigmaX2();
1188 sigma[1] = (Double_t) recp->GetSigmaZ2();
64ab0d55 1189
1190 cluster(0)=fRecCylR[indexmod][indnew];
1191 cluster(1)=fRecCylPhi[indexmod][indnew];
1192 cluster(2)=fRecCylZ[indexmod][indnew];
1193
b48af428 1194 // cout<<" layer = "<<play<<"\n";
1195 // cout<<" cluster prima = "<<vecclust(0)<<" "
1196 // <<vecclust(1)<<" "
1197 // <<vecclust(2)<<"\n"; getchar();
1198
1199 Float_t sigmatotphi, sigmatotz;
1200 // Float_t epsphi=5.0, epsz=5.0;
1201 //if(fPtref<0.2) {epsphi=3.; epsz=3.;}
1202 Double_t rTrack=(*trackITS).Getrtrack();
1203 Double_t sigmaphi=sigma[0]/(rTrack*rTrack);
1204 sigmatotphi=epsphi*TMath::Sqrt(sigmaphi +
1205 (*trackITS).GetSigmaphi());
1206 sigmatotz=epsz*TMath::Sqrt(sigma[1] +
1207 (*trackITS).GetSigmaZ());
1208 //cout<<"cluster e sigmatotphi e track = "<<cluster(0)
1209 // <<" "<<cluster(1)<<" "<<sigmatotphi<<" "
1210 // <<vecclust(3)<<"\n";
1211 //if(vecclust(3)==481) getchar();
1212 if(cluster(1)<6. && (*trackITS).Getphi()>6.)
1213 cluster(1)=cluster(1)+(2.*TMath::Pi());
1214 if(cluster(1)>6. && (*trackITS).Getphi()<6.)
1215 cluster(1)=cluster(1)-(2.*TMath::Pi());
1216 if(TMath::Abs(cluster(1)-(*trackITS).Getphi())>sigmatotphi)
1217 continue;
1218 // cout<<" supero sigmaphi \n";
1219 AliITSTrackV1 *newTrack = new AliITSTrackV1((*trackITS));
def162f4 1220 //(*newTrack).SetLayer((*trackITS).GetLayer()-1);
b48af428 1221 if (TMath::Abs(rTrack-cluster(0))/rTrack>1e-6)
1222 (*newTrack).Correct(Double_t(cluster(0)));
1223 //cout<<" cluster(2) e(*newTrack).GetZ()="<<cluster(2)<<" "
1224 // << (*newTrack).GetZ()<<"\n";
1225 if(TMath::Abs(cluster(2)-(*newTrack).GetZ()) > sigmatotz){
1226 delete newTrack;
1227 continue;
1228 } // end if
1229 Double_t sigmanew[2];
1230 sigmanew[0]= sigmaphi;
1231 sigmanew[1]=sigma[1];
1232 Double_t m[2];
1233 m[0]=cluster(1);
1234 m[1]=cluster(2);
1235 // Double_t chi2pred=newTrack->GetPredChi2(m,sigmanew);
1236 // cout<<" chi2pred = "<<chi2pred<<"\n";
1237 // if(chi2pred>fChi2max) continue; //aggiunto il 30-7-2001
1238 if(iriv == 0) flaghit=1;
088e0b8d 1239 (*newTrack).AddMS(); // add the multiple scattering
b48af428 1240 //matrix to the covariance matrix
d0df5576 1241 (*newTrack).AddEL(1.,0);
b48af428 1242
b48af428 1243 if(fflagvert){
1244 KalmanFilterVert(newTrack,cluster,sigmanew);
1245 //KalmanFilterVert(newTrack,cluster,sigmanew,chi2pred);
1246 }else{
1247 KalmanFilter(newTrack,cluster,sigmanew);
1248 } // end if
b48af428 1249 (*newTrack).PutCluster(layernew, vecclust);
1250 newTrack->AddClustInTrack();
1251 listoftrack.AddLast(newTrack);
1252 } // end for indnew
b48af428 1253 } // end of for on detectors (iriv)
1254 }//end if(outinters==0)
1255
1256 if(flaghit==0 || outinters==-2) {
1257 AliITSTrackV1 *newTrack = new AliITSTrackV1(*trackITS);
1258 (*newTrack).Setfnoclust();
def162f4 1259 //(*newTrack).SetLayer((*trackITS).GetLayer()-1);
088e0b8d 1260 (*newTrack).AddMS(); // add the multiple scattering matrix
b48af428 1261 // to the covariance matrix
d0df5576 1262 (*newTrack).AddEL(1.,0);
b48af428 1263 listoftrack.AddLast(newTrack);
1264 } // end if
1265
1266 //gObjectTable->Print(); // stampa memoria
04b80329 1267
b48af428 1268 RecursiveTracking(&listoftrack);
1269 listoftrack.Delete();
1270 } // end of for on tracks (index)
04b80329 1271
b48af428 1272 //gObjectTable->Print(); // stampa memoria
7d62fb64 1273 delete rl;
1274
13888096 1275}
b48af428 1276//______________________________________________________________________
1277Int_t AliITSTrackerV1::Intersection(AliITSTrackV1 &track,Int_t layer,
1278 Int_t &ladder,Int_t &detector) {
1279 // Origin A. Badala' and G.S. Pappalardo
1280 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1281 // Found the intersection and the detector
1282
1283 Double_t rk=fAvrad[layer-1];
1284 if(track.DoNotCross(rk)){ /*cout<< " Do not cross \n";*/ return -1;}
1285 track.Propagation(rk);
1286 Double_t zinters=track.GetZ();
1287 Double_t phinters=track.Getphi();
1288 //cout<<"zinters = "<<zinters<<" phinters = "<<phinters<<"\n";
1289
1290 TVector det(9);
1291 TVector listDet(2);
1292 TVector distZCenter(2);
1293
1294 Int_t iz=0;
1295 Int_t iD;
1296 for(iD = 1; iD<= fNdet[layer-1]; iD++) {
1297 if(zinters > fzmin[layer-1][iD-1] && zinters <= fzmax[layer-1][iD-1]) {
1298 if(iz>1) {
1299 cout<< " Errore su iz in Intersection \n";
1300 getchar();
1301 }else {
1302 listDet(iz)= iD; distZCenter(iz)=TMath::Abs(zinters-det(2));
1303 iz++;
1304 } // end if
1305 } // end if
1306 } // end for iD
1307
1308 if(iz==0) {/* cout<< " No detector along Z \n";*/ return -2;}
1309 detector=Int_t (listDet(0));
1310 if(iz>1 && (distZCenter(0)>distZCenter(1))) detector=Int_t (listDet(1));
1311
1312 TVector listLad(2);
1313 TVector distPhiCenter(2);
1314 Int_t ip=0;
1315 Double_t pigre=TMath::Pi();
1316 Int_t iLd;
1317 for(iLd = 1; iLd<= fNlad[layer-1]; iLd++) {
1318 Double_t phimin=fphimin[layer-1][iLd-1];
1319 Double_t phimax=fphimax[layer-1][iLd-1];
1320 Double_t phidet=fphidet[layer-1][iLd-1];
1321 Double_t phiconfr=phinters;
1322 if(phimin>phimax) {
1323 //if(phimin <5.5) {cout<<" Error in Intersection for phi \n";
1324 // getchar();}
1325 phimin-=(2.*pigre);
1326 if(phinters>(1.5*pigre)) phiconfr=phinters-(2.*pigre);
1327 if(phidet>(1.5*pigre)) phidet-=(2.*pigre);
1328 } // end if
1329 if(phiconfr>phimin && phiconfr<= phimax) {
1330 if(ip>1) {
1331 cout<< " Errore su ip in Intersection \n"; getchar();
1332 }else {
1333 listLad(ip)= iLd;
1334 distPhiCenter(ip)=TMath::Abs(phiconfr-phidet); ip++;
1335 } // end if
1336 } // end if
1337 } // end for iLd
1338 if(ip==0) { cout<< " No detector along phi \n"; getchar();}
1339 ladder=Int_t (listLad(0));
1340 if(ip>1 && (distPhiCenter(0)>distPhiCenter(1))) ladder=Int_t (listLad(1));
1341 return 0;
1342}
1343//______________________________________________________________________
1344void AliITSTrackerV1::KalmanFilter(AliITSTrackV1 *newTrack,TVector &cluster,
1345 Double_t sigma[2]){
1346 //Origin A. Badala' and G.S. Pappalardo:
1347 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1348 // Kalman filter without vertex constraint
1349 ////// Evaluation of the measurement vector ////////////////////////
1350 Double_t m[2];
1351 Double_t rk,phik,zk;
1352 rk=cluster(0); phik=cluster(1); zk=cluster(2);
1353 m[0]=phik; m[1]=zk;
1354 //////////////////////// Evaluation of the error matrix V /////////
1355 Double_t v00=sigma[0];
1356 Double_t v11=sigma[1];
1357 ////////////////////////////////////////////////////////////////////
1358 Double_t cin00,cin10,cin20,cin30,cin40,cin11,cin21,cin31,cin41,cin22,
1359 cin32,cin42,cin33,cin43,cin44;
1360
1361 newTrack->GetCElements(cin00,
1362 cin10,cin11,
1363 cin20,cin21,cin22,
1364 cin30,cin31,cin32,cin33,
1365 cin40,cin41,cin42,cin43,cin44); //get C matrix
1366 Double_t rold00=cin00+v00;
1367 Double_t rold10=cin10;
1368 Double_t rold11=cin11+v11;
1369 ////////////////////// R matrix inversion /////////////////////////
1370 Double_t det=rold00*rold11-rold10*rold10;
1371 Double_t r00=rold11/det;
1372 Double_t r10=-rold10/det;
1373 Double_t r11=rold00/det;
1374 ////////////////////////////////////////////////////////////////////
1375 Double_t k00=cin00*r00+cin10*r10;
1376 Double_t k01=cin00*r10+cin10*r11;
1377 Double_t k10=cin10*r00+cin11*r10;
1378 Double_t k11=cin10*r10+cin11*r11;
1379 Double_t k20=cin20*r00+cin21*r10;
1380 Double_t k21=cin20*r10+cin21*r11;
1381 Double_t k30=cin30*r00+cin31*r10;
1382 Double_t k31=cin30*r10+cin31*r11;
1383 Double_t k40=cin40*r00+cin41*r10;
1384 Double_t k41=cin40*r10+cin41*r11;
1385 Double_t x0,x1,x2,x3,x4;
1386 newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
1387 Double_t savex0=x0, savex1=x1;
1388 x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1);
1389 x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1);
1390 x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1);
1391 x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1);
1392 x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1);
1393 Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
1394 c00=cin00-k00*cin00-k01*cin10;
1395 c10=cin10-k00*cin10-k01*cin11;
1396 c20=cin20-k00*cin20-k01*cin21;
1397 c30=cin30-k00*cin30-k01*cin31;
1398 c40=cin40-k00*cin40-k01*cin41;
1399 c11=cin11-k10*cin10-k11*cin11;
1400 c21=cin21-k10*cin20-k11*cin21;
1401 c31=cin31-k10*cin30-k11*cin31;
1402 c41=cin41-k10*cin40-k11*cin41;
1403 c22=cin22-k20*cin20-k21*cin21;
1404 c32=cin32-k20*cin30-k21*cin31;
1405 c42=cin42-k20*cin40-k21*cin41;
1406 c33=cin33-k30*cin30-k31*cin31;
1407 c43=cin43-k30*cin40-k31*cin41;
1408 c44=cin44-k40*cin40-k41*cin41;
1409 newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
1410 newTrack->PutCElements(c00,
1411 c10,c11,
1412 c20,c21,c22,
1413 c30,c31,c32,c33,
1414 c40,c41,c42,c43,c44); // put in track the
1415 // new cov matrix
1416 Double_t vmcold00=v00-c00;
1417 Double_t vmcold10=-c10;
1418 Double_t vmcold11=v11-c11;
1419 ////////////////////// Matrix vmc inversion ///////////////////////
1420 det=vmcold00*vmcold11-vmcold10*vmcold10;
1421 Double_t vmc00=vmcold11/det;
1422 Double_t vmc10=-vmcold10/det;
1423 Double_t vmc11=vmcold00/det;
1424 ////////////////////////////////////////////////////////////////////
1425 Double_t chi2=(m[0]-x0)*( vmc00*(m[0]-x0) + 2.*vmc10*(m[1]-x1) ) +
1426 (m[1]-x1)*vmc11*(m[1]-x1);
04b80329 1427 newTrack->SetChi2(newTrack->GetChi2()+chi2);
b48af428 1428}
1429//----------------------------------------------------------------------
1430//void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,
1431// TVector &cluster,Double_t sigma[2]){
1432void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack,
1433 TVector &cluster,Double_t sigma[2]
1434 /*, Double_t chi2pred*/){
1435 //Origin A. Badala' and G.S. Pappalardo:
1436 // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
1437 // Kalman filter with vertex constraint
1438 ///////////////////// Evaluation of the measurement vector m ////////
1439 Double_t m[4];
1440 Double_t rk,phik,zk;
1441 rk=cluster(0); phik=cluster(1); zk=cluster(2);
1442 m[0]=phik; m[1]=zk;
1443 Double_t cc=(*newTrack).GetC();
1444 Double_t zv=(*newTrack).GetZv();
1445 Double_t dv=(*newTrack).GetDv();
1446 Double_t cy=cc/2.;
1447 Double_t tgl= (zk-zv)*cy/TMath::ASin(cy*rk);
1448 m[2]=dv; m[3]=tgl;
1449 /////////////////////// Evaluation of the error matrix V //////////
1450 Int_t layer=newTrack->GetLayer();
1451 Double_t v00=sigma[0];
1452 Double_t v11=sigma[1];
1453 Double_t v31=sigma[1]/rk;
1454 Double_t sigmaDv=newTrack->GetsigmaDv();
1455 Double_t v22=sigmaDv*sigmaDv + newTrack->Getd2(layer-1);
1456 Double_t v32=newTrack->Getdtgl(layer-1);
1457 Double_t sigmaZv=newTrack->GetsigmaZv();
1458 Double_t v33=(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+newTrack->Gettgl2(layer-1);
1459 //////////////////////////////////////////////////////////////////
1460 Double_t cin00,cin10,cin11,cin20,cin21,cin22,
1461 cin30,cin31,cin32,cin33,cin40,cin41,cin42,cin43,cin44;
1462 newTrack->GetCElements(cin00,
1463 cin10,cin11,
1464 cin20,cin21,cin22,
1465 cin30,cin31,cin32,cin33,
1466 cin40,cin41,cin42,cin43,cin44); //get C matrix
1467 Double_t r[4][4];
1468 r[0][0]=cin00+v00;
1469 r[1][0]=cin10;
1470 r[2][0]=cin20;
1471 r[3][0]=cin30;
1472 r[1][1]=cin11+v11;
1473 r[2][1]=cin21;
1474 r[3][1]=cin31+sigma[1]/rk;
1475 r[2][2]=cin22+sigmaDv*sigmaDv+newTrack->Getd2(layer-1);
1476 r[3][2]=cin32+newTrack->Getdtgl(layer-1);
1477 r[3][3]=cin33+(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+
1478 newTrack->Gettgl2(layer-1);
1479 r[0][1]=r[1][0]; r[0][2]=r[2][0]; r[0][3]=r[3][0];
1480 r[1][2]=r[2][1]; r[1][3]=r[3][1]; r[2][3]=r[3][2];
1481 ///////////////////// Matrix R inversion //////////////////////////
1482 const Int_t kn=4;
1483 Double_t big, hold;
1484 Double_t d=1.;
1485 Int_t ll[kn],mm[kn];
1486 Int_t i,j,k;
1487
1488 for(k=0; k<kn; k++) {
1489 ll[k]=k;
1490 mm[k]=k;
1491 big=r[k][k];
1492 for(j=k; j<kn ; j++) {
1493 for (i=j; i<kn; i++) {
1494 if(TMath::Abs(big) < TMath::Abs(r[i][j]) ) {
1495 big=r[i][j];
1496 ll[k]=i;
1497 mm[k]=j;
1498 } // end if
1499 } // end for i
1500 } // end for j
1501 //
1502 j= ll[k];
1503 if(j > k) {
1504 for(i=0; i<kn; i++) {
1505 hold=-r[k][i];
1506 r[k][i]=r[j][i];
1507 r[j][i]=hold;
1508 } // end for i
1509 }// end if
1510 //
1511 i=mm[k];
1512 if(i > k ) {
1513 for(j=0; j<kn; j++) {
1514 hold=-r[j][k];
1515 r[j][k]=r[j][i];
1516 r[j][i]=hold;
1517 } // end for j
1518 } // end if
1519 //
1520 if(!big) {
1521 d=0.;
1522 cout << "Singular matrix\n";
1523 } // end if
1524 for(i=0; i<kn; i++) {
1525 if(i == k) { continue; }
1526 r[i][k]=r[i][k]/(-big);
1527 } // end for i
1528 //
1529 for(i=0; i<kn; i++) {
1530 hold=r[i][k];
1531 for(j=0; j<kn; j++) {
1532 if(i == k || j == k) continue;
1533 r[i][j]=hold*r[k][j]+r[i][j];
1534 } // end for j
1535 } // end of ri
1536 //
1537 for(j=0; j<kn; j++) {
1538 if(j == k) continue;
1539 r[k][j]=r[k][j]/big;
1540 } // end for j
1541 //
1542 d=d*big;
1543 //
1544 r[k][k]=1./big;
1545 } // end for k
1546 //
1547 for(k=kn-1; k>=0; k--) {
1548 i=ll[k];
1549 if(i > k) {
1550 for (j=0; j<kn; j++) {
1551 hold=r[j][k];
1552 r[j][k]=-r[j][i];
1553 r[j][i]=hold;
1554 } // end for j
1555 } // end if i
1556 j=mm[k];
1557 if(j > k) {
1558 for (i=0; i<kn; i++) {
1559 hold=r[k][i];
1560 r[k][i]=-r[j][i];
1561 r[j][i]=hold;
1562 } // end for i
1563 } // end if
1564 } // end for k
1565 ////////////////////////////////////////////////////////////////////
1566 Double_t k00=cin00*r[0][0]+cin10*r[1][0]+cin20*r[2][0]+cin30*r[3][0];
1567 Double_t k01=cin00*r[1][0]+cin10*r[1][1]+cin20*r[2][1]+cin30*r[3][1];
1568 Double_t k02=cin00*r[2][0]+cin10*r[2][1]+cin20*r[2][2]+cin30*r[3][2];
1569 Double_t k03=cin00*r[3][0]+cin10*r[3][1]+cin20*r[3][2]+cin30*r[3][3];
1570 Double_t k10=cin10*r[0][0]+cin11*r[1][0]+cin21*r[2][0]+cin31*r[3][0];
1571 Double_t k11=cin10*r[1][0]+cin11*r[1][1]+cin21*r[2][1]+cin31*r[3][1];
1572 Double_t k12=cin10*r[2][0]+cin11*r[2][1]+cin21*r[2][2]+cin31*r[3][2];
1573 Double_t k13=cin10*r[3][0]+cin11*r[3][1]+cin21*r[3][2]+cin31*r[3][3];
1574 Double_t k20=cin20*r[0][0]+cin21*r[1][0]+cin22*r[2][0]+cin32*r[3][0];
1575 Double_t k21=cin20*r[1][0]+cin21*r[1][1]+cin22*r[2][1]+cin32*r[3][1];
1576 Double_t k22=cin20*r[2][0]+cin21*r[2][1]+cin22*r[2][2]+cin32*r[3][2];
1577 Double_t k23=cin20*r[3][0]+cin21*r[3][1]+cin22*r[3][2]+cin32*r[3][3];
1578 Double_t k30=cin30*r[0][0]+cin31*r[1][0]+cin32*r[2][0]+cin33*r[3][0];
1579 Double_t k31=cin30*r[1][0]+cin31*r[1][1]+cin32*r[2][1]+cin33*r[3][1];
1580 Double_t k32=cin30*r[2][0]+cin31*r[2][1]+cin32*r[2][2]+cin33*r[3][2];
1581 Double_t k33=cin30*r[3][0]+cin31*r[3][1]+cin32*r[3][2]+cin33*r[3][3];
1582 Double_t k40=cin40*r[0][0]+cin41*r[1][0]+cin42*r[2][0]+cin43*r[3][0];
1583 Double_t k41=cin40*r[1][0]+cin41*r[1][1]+cin42*r[2][1]+cin43*r[3][1];
1584 Double_t k42=cin40*r[2][0]+cin41*r[2][1]+cin42*r[2][2]+cin43*r[3][2];
1585 Double_t k43=cin40*r[3][0]+cin41*r[3][1]+cin42*r[3][2]+cin43*r[3][3];
1586
1587 Double_t x0,x1,x2,x3,x4;
1588 newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector
1589 Double_t savex0=x0, savex1=x1, savex2=x2, savex3=x3;
1590 x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1)+k02*(m[2]-savex2)+
1591 k03*(m[3]-savex3);
1592 x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1)+k12*(m[2]-savex2)+
1593 k13*(m[3]-savex3);
1594 x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1)+k22*(m[2]-savex2)+
1595 k23*(m[3]-savex3);
1596 x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1)+k32*(m[2]-savex2)+
1597 k33*(m[3]-savex3);
1598 x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1)+k42*(m[2]-savex2)+
1599 k43*(m[3]-savex3);
1600 Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44;
1601 c00=cin00-k00*cin00-k01*cin10-k02*cin20-k03*cin30;
1602 c10=cin10-k00*cin10-k01*cin11-k02*cin21-k03*cin31;
1603 c20=cin20-k00*cin20-k01*cin21-k02*cin22-k03*cin32;
1604 c30=cin30-k00*cin30-k01*cin31-k02*cin32-k03*cin33;
1605 c40=cin40-k00*cin40-k01*cin41-k02*cin42-k03*cin43;
1606 c11=cin11-k10*cin10-k11*cin11-k12*cin21-k13*cin31;
1607 c21=cin21-k10*cin20-k11*cin21-k12*cin22-k13*cin32;
1608 c31=cin31-k10*cin30-k11*cin31-k12*cin32-k13*cin33;
1609 c41=cin41-k10*cin40-k11*cin41-k12*cin42-k13*cin43;
1610 c22=cin22-k20*cin20-k21*cin21-k22*cin22-k23*cin32;
1611 c32=cin32-k20*cin30-k21*cin31-k22*cin32-k23*cin33;
1612 c42=cin42-k20*cin40-k21*cin41-k22*cin42-k23*cin43;
1613 c33=cin33-k30*cin30-k31*cin31-k32*cin32-k33*cin33;
1614 c43=cin43-k30*cin40-k31*cin41-k32*cin42-k33*cin43;
1615 c44=cin44-k40*cin40-k41*cin41-k42*cin42-k43*cin43;
1616
1617 newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector
1618 newTrack->PutCElements(c00,
1619 c10,c11,
1620 c20,c21,c22,
1621 c30,c31,c32,c33,
1622 c40,c41,c42,c43,c44); // put in track the
1623 // new cov matrix
1624 Double_t vmc[4][4];
1625 vmc[0][0]=v00-c00; vmc[1][0]=-c10; vmc[2][0]=-c20; vmc[3][0]=-c30;
1626 vmc[1][1]=v11-c11; vmc[2][1]=-c21; vmc[3][1]=v31-c31;
1627 vmc[2][2]=v22-c22; vmc[3][2]=v32-c32;
1628 vmc[3][3]=v33-c33;
1629 vmc[0][1]=vmc[1][0]; vmc[0][2]=vmc[2][0]; vmc[0][3]=vmc[3][0];
1630 vmc[1][2]=vmc[2][1]; vmc[1][3]=vmc[3][1];
1631 vmc[2][3]=vmc[3][2];
1632 /////////////////////// vmc matrix inversion ///////////////////////
1633 d=1.;
1634 for(k=0; k<kn; k++) {
1635 ll[k]=k;
1636 mm[k]=k;
1637 big=vmc[k][k];
1638 for(j=k; j<kn ; j++) {
1639 for (i=j; i<kn; i++) {
1640 if(TMath::Abs(big) < TMath::Abs(vmc[i][j]) ) {
1641 big=vmc[i][j];
1642 ll[k]=i;
1643 mm[k]=j;
1644 } // end if
1645 } // end for i
1646 } // end for j
1647 //
1648 j= ll[k];
1649 if(j > k) {
1650 for(i=0; i<kn; i++) {
1651 hold=-vmc[k][i];
1652 vmc[k][i]=vmc[j][i];
1653 vmc[j][i]=hold;
1654 } // end for i
1655 } // end if
1656 //
1657 i=mm[k];
1658 if(i > k ) {
1659 for(j=0; j<kn; j++) {
1660 hold=-vmc[j][k];
1661 vmc[j][k]=vmc[j][i];
1662 vmc[j][i]=hold;
1663 } // end for j
1664 } // end if
1665 //
1666 if(!big) {
1667 d=0.;
1668 cout << "Singular matrix\n";
1669 } // end if
1670 for(i=0; i<kn; i++) {
1671 if(i == k) continue;
1672 vmc[i][k]=vmc[i][k]/(-big);
1673 } // end for i
1674 //
1675 for(i=0; i<kn; i++) {
1676 hold=vmc[i][k];
1677 for(j=0; j<kn; j++) {
1678 if(i == k || j == k) continue;
1679 vmc[i][j]=hold*vmc[k][j]+vmc[i][j];
1680 } // end for j
1681 } // end for i
1682 //
1683 for(j=0; j<kn; j++) {
1684 if(j == k) continue;
1685 vmc[k][j]=vmc[k][j]/big;
1686 } // end for j
1687 //
1688 d=d*big;
1689 //
1690 vmc[k][k]=1./big;
1691 } // end for k
1692 //
1693 for(k=kn-1; k>=0; k--) {
1694 i=ll[k];
1695 if(i > k) {
1696 for (j=0; j<kn; j++) {
1697 hold=vmc[j][k];
1698 vmc[j][k]=-vmc[j][i];
1699 vmc[j][i]=hold;
1700 } // end for j
1701 } // end if i>k
1702 j=mm[k];
1703 if(j > k) {
1704 for (i=0; i<kn; i++) {
1705 hold=vmc[k][i];
1706 vmc[k][i]=-vmc[j][i];
1707 vmc[j][i]=hold;
1708 } // end for i
1709 } // end if j>k
1710 } // end for k
1711 ////////////////////////////////////////////////////////////////////
1712 Double_t chi2=(m[0]-x0)*( vmc[0][0]*(m[0]-x0) + 2.*vmc[1][0]*(m[1]-x1) +
1713 2.*vmc[2][0]*(m[2]-x2)+ 2.*vmc[3][0]*(m[3]-x3) )+
1714 (m[1]-x1)* ( vmc[1][1]*(m[1]-x1) + 2.*vmc[2][1]*(m[2]-x2)+
1715 2.*vmc[3][1]*(m[3]-x3) ) +
1716 (m[2]-x2)* ( vmc[2][2]*(m[2]-x2)+ 2.*vmc[3][2]*(m[3]-x3) ) +
1717 (m[3]-x3)*vmc[3][3]*(m[3]-x3);
1718 //cout<<" chi2 kalman = "<<chi2<<"\n"; getchar();
1719 newTrack->SetChi2(newTrack->GetChi2()+chi2);
1720 // newTrack->SetChi2(newTrack->GetChi2()+chi2pred);
1721}
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