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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 | |
13888096 | 40 | #include "TParticle.h" |
41 | #include "AliRun.h" | |
42 | #include "AliITS.h" | |
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 | 58 | ClassImp(AliITSTrackerV1) |
55cd883f | 59 | //______________________________________________________________________ |
60 | AliITSTrackerV1::AliITSTrackerV1() { | |
61 | //Default constructor | |
62 | fITS = 0; | |
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; | |
55cd883f | 90 | } |
b48af428 | 91 | //______________________________________________________________________ |
64ab0d55 | 92 | AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS, Int_t evnumber, Bool_t flag) { |
b48af428 | 93 | //Origin A. Badala' and G.S. Pappalardo: |
94 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
95 | // Class constructor. It does some initializations. | |
96 | ||
a49bb2c8 | 97 | //PH Initialisation taken from the default constructor |
b48af428 | 98 | fITS = IITTSS; |
a49bb2c8 | 99 | fresult = 0; |
64ab0d55 | 100 | fPtref = 0.; |
101 | fChi2max =0.; | |
102 | frecPoints = 0; | |
a49bb2c8 | 103 | fvettid = 0; |
64ab0d55 | 104 | fflagvert = flag; |
a49bb2c8 | 105 | frl = 0; |
106 | fzmin = 0; | |
107 | fzmax = 0; | |
108 | fphimin = 0; | |
109 | fphimax = 0; | |
110 | fphidet = 0; | |
64ab0d55 | 111 | |
b48af428 | 112 | Int_t imax = 200,jmax = 450; |
113 | frl = new AliITSRad(imax,jmax); | |
114 | ||
115 | ////////// gets information on geometry ///////////////////////////// | |
64ab0d55 | 116 | AliITSgeom *g1 = fITS->GetITSgeom(); |
b48af428 | 117 | Int_t ll=1, dd=1; |
118 | TVector det(9); | |
119 | ||
b48af428 | 120 | Int_t ia; |
121 | for(ia=0; ia<6; ia++) { | |
122 | fNlad[ia]=g1->GetNladders(ia+1); | |
123 | fNdet[ia]=g1->GetNdetectors(ia+1); | |
124 | //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n"; | |
125 | } // end for ia | |
b48af428 | 126 | |
64ab0d55 | 127 | //cout<<" mean radius = "; |
b48af428 | 128 | Int_t ib; |
129 | for(ib=0; ib<6; ib++) { | |
130 | g1->GetCenterThetaPhi(ib+1,ll,dd,det); | |
131 | Double_t r1=TMath::Sqrt(det(0)*det(0)+det(1)*det(1)); | |
132 | g1->GetCenterThetaPhi(ib+1,ll,dd+1,det); | |
133 | Double_t r2=TMath::Sqrt(det(0)*det(0)+det(1)*det(1)); | |
134 | fAvrad[ib]=(r1+r2)/2.; | |
135 | //cout<<fAvrad[ib]<<" "; | |
136 | } // end for ib | |
137 | //cout<<"\n"; getchar(); | |
138 | ||
139 | fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx(); | |
140 | fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz(); | |
141 | ||
142 | fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx(); | |
143 | fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz(); | |
144 | ||
145 | fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx(); | |
146 | fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz(); | |
147 | ||
148 | fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx(); | |
149 | fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz(); | |
150 | ||
151 | fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx(); | |
152 | fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz(); | |
153 | ||
154 | fDetx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx(); | |
155 | fDetz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz(); | |
156 | //cout<<" Detx Detz\n"; | |
157 | //for(Int_t la=0; la<6; la++) cout<<" "<<fDetx[la]<<" "<< | |
158 | // fDetz[la]<<endl; | |
159 | //getchar(); | |
64ab0d55 | 160 | |
b48af428 | 161 | // allocate memory and define matrices fzmin, fzmax, fphimin and fphimax // |
162 | Double_t epsz=1.2; | |
163 | Double_t epszdrift=0.05; | |
164 | ||
165 | fzmin = new Double_t*[6]; fzmax = new Double_t*[6]; | |
166 | Int_t im1, im2, im2max; | |
167 | for(im1=0; im1<6; im1++) { | |
168 | im2max=fNdet[im1]; | |
169 | fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max]; | |
170 | } // end for im1 | |
171 | ||
172 | for(im1=0; im1<6; im1++) { | |
173 | im2max=fNdet[im1]; | |
174 | for(im2=0; im2<im2max; im2++) { | |
175 | g1->GetCenterThetaPhi(im1+1,1,im2+1,det); | |
176 | if(im2!=0) fzmin[im1][im2]=det(2)-fDetz[im1]; | |
177 | else | |
178 | fzmin[im1][im2]=det(2)-(fDetz[im1])*epsz; | |
179 | if(im2!=(im2max-1)) fzmax[im1][im2]=det(2)+fDetz[im1]; | |
180 | else | |
cbcfa38d | 181 | fzmax[im1][im2]=det(2)+fDetz[im1]*epsz; |
b48af428 | 182 | if(im1==2 || im1==3) { |
183 | fzmin[im1][im2]-=epszdrift; | |
184 | fzmax[im1][im2]+=epszdrift; | |
185 | } // end if im1==2 || im1==3 | |
186 | } // end for im2 | |
187 | } // end for im1 | |
13888096 | 188 | |
b48af428 | 189 | fphimin = new Double_t*[6]; fphimax = new Double_t*[6]; |
190 | for(im1=0;im1<6;im1++) { | |
191 | im2max=fNlad[im1]; | |
192 | fphimin[im1] = new Double_t[im2max]; | |
193 | fphimax[im1] = new Double_t[im2max]; | |
194 | } // end for im1 | |
195 | ||
196 | fphidet = new Double_t*[6]; | |
197 | for(im1=0; im1<6; im1++) { | |
198 | im2max=fNlad[im1]; | |
199 | fphidet[im1] = new Double_t[im2max]; | |
200 | } // end for im1 | |
201 | ||
def162f4 | 202 | Double_t global[3],local[3]; |
b48af428 | 203 | Double_t pigre=TMath::Pi(); |
204 | Double_t xmin,ymin,xmax,ymax; | |
205 | ||
206 | for(im1=0; im1<6; im1++) { | |
207 | im2max=fNlad[im1]; | |
208 | for(im2=0; im2<im2max; im2++) { | |
209 | Int_t idet=2; | |
210 | g1->GetCenterThetaPhi(im1+1,im2+1,idet,det); | |
211 | fphidet[im1][im2] = TMath::ATan2(Double_t(det(1)), | |
212 | Double_t(det(0))); | |
213 | if(fphidet[im1][im2]<0.) fphidet[im1][im2]+=2.*pigre; | |
214 | local[1]=local[2]=0.; | |
215 | local[0]= -(fDetx[im1]); | |
216 | if(im1==0) local[0]= (fDetx[im1]); //to take into account | |
217 | // different reference system | |
218 | g1->LtoG(im1+1,im2+1,idet,local,global); | |
219 | xmax=global[0]; ymax=global[1]; | |
220 | local[0]= (fDetx[im1]); | |
221 | if(im1==0) local[0]= -(fDetx[im1]);//take into account different | |
222 | // reference system | |
223 | g1->LtoG(im1+1,im2+1,idet,local,global); | |
224 | xmin=global[0]; ymin=global[1]; | |
225 | fphimin[im1][im2]= TMath::ATan2(ymin,xmin); | |
226 | if(fphimin[im1][im2]<0.) fphimin[im1][im2]+=2.*pigre; | |
227 | fphimax[im1][im2]= TMath::ATan2(ymax,xmax); | |
228 | if(fphimax[im1][im2]<0.) fphimax[im1][im2]+=2.*pigre; | |
229 | } // end for im2 | |
230 | } // end for im1 | |
64ab0d55 | 231 | ////////////////////////////////////////////////////////////////////////////////////////////////////////// |
232 | /////////////// allocate memory and define vector fNRecPoints and matrices fRecCylR, fRecCylPhi, fRecCylZ ///////////// | |
233 | gAlice->GetEvent(evnumber); | |
e869281d | 234 | Int_t numOfModules = g1->GetIndexMax(); |
235 | fRecCylR = new Double_t *[numOfModules]; | |
236 | fRecCylPhi = new Double_t *[numOfModules]; | |
237 | fRecCylZ = new Double_t *[numOfModules]; | |
64ab0d55 | 238 | AliITSRecPoint *recp; |
e869281d | 239 | fNRecPoints = new Int_t[numOfModules]; |
64ab0d55 | 240 | |
e869281d | 241 | for(Int_t module=0; module<numOfModules; module++) { |
64ab0d55 | 242 | fITS->ResetRecPoints(); |
243 | gAlice->TreeR()->GetEvent(module); | |
244 | frecPoints=fITS->RecPoints(); | |
245 | Int_t nRecPoints=fNRecPoints[module]=frecPoints->GetEntries(); | |
64ab0d55 | 246 | fRecCylR[module] = new Double_t[nRecPoints]; |
247 | fRecCylPhi[module] = new Double_t[nRecPoints]; | |
248 | fRecCylZ[module] = new Double_t[nRecPoints]; | |
249 | Int_t ind; | |
250 | for(ind=0; ind<fNRecPoints[module]; ind++) { | |
251 | recp=(AliITSRecPoint*)frecPoints->UncheckedAt(ind); | |
252 | // Float_t global[3], local[3]; | |
253 | Double_t global[3], local[3]; | |
254 | local[0]=recp->GetX(); | |
255 | local[1]=0.; | |
256 | local[2]= recp->GetZ(); | |
257 | g1->LtoG(module,local,global); | |
64ab0d55 | 258 | |
259 | Double_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit | |
260 | Double_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit | |
def162f4 | 261 | Double_t z = global[2]; // z hit |
64ab0d55 | 262 | |
263 | fRecCylR[module][ind]=r; | |
264 | fRecCylPhi[module][ind]=phi; | |
265 | fRecCylZ[module][ind]=z; | |
266 | } | |
267 | } | |
268 | //} | |
269 | //} | |
270 | //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | |
271 | ||
b48af428 | 272 | |
273 | ////////// gets magnetic field factor ////////////////////////////// | |
274 | ||
275 | AliMagF * fieldPointer = gAlice->Field(); | |
af50998a | 276 | // fFieldFactor = (Double_t)fieldPointer->Factor(); |
277 | fFieldFactor =(Double_t)fieldPointer-> SolenoidField()/10/.2; | |
278 | // cout<< " field factor = "<<fFieldFactor<<"\n"; getchar(); | |
b48af428 | 279 | } |
280 | //______________________________________________________________________ | |
d0df5576 | 281 | AliITSTrackerV1::AliITSTrackerV1(const AliITSTrackerV1 &cobj) : TObject(cobj) { |
b48af428 | 282 | // Origin A. Badala' and G.S. Pappalardo: |
283 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
284 | // copy constructor | |
64ab0d55 | 285 | |
286 | *fITS = *cobj.fITS; | |
b48af428 | 287 | *fresult = *cobj.fresult; |
288 | fPtref = cobj.fPtref; | |
289 | fChi2max = cobj.fChi2max; | |
290 | **fvettid = **cobj.fvettid; | |
291 | fflagvert = cobj.fflagvert; | |
292 | Int_t imax=200,jmax=450; | |
293 | frl = new AliITSRad(imax,jmax); | |
294 | *frl = *cobj.frl; | |
295 | fFieldFactor = cobj.fFieldFactor; | |
296 | Int_t i,im1,im2,im2max; | |
297 | for(i=0; i<6; i++) { | |
298 | fNlad[i] = cobj.fNlad[i]; | |
299 | fNdet[i] = cobj.fNdet[i]; | |
300 | fAvrad[i] = cobj.fAvrad[i]; | |
301 | fDetx[i] = cobj.fDetx[i]; | |
302 | fDetz[i] = cobj.fDetz[i]; | |
303 | } // end or i | |
304 | fzmin = new Double_t*[6]; fzmax = new Double_t*[6]; | |
305 | for(im1=0; im1<6; im1++) { | |
306 | im2max=fNdet[im1]; | |
307 | fzmin[im1] = new Double_t[im2max]; | |
308 | fzmax[im1] = new Double_t[im2max]; | |
309 | } // end for im1 | |
cbcfa38d | 310 | fphimin = new Double_t*[6]; fphimax = new Double_t*[6]; |
b48af428 | 311 | for(im1=0;im1<6;im1++) { |
312 | im2max=fNlad[im1]; | |
313 | fphimin[im1] = new Double_t[im2max]; | |
314 | fphimax[im1] = new Double_t[im2max]; | |
315 | } // end for im1 | |
316 | ||
317 | fphidet = new Double_t*[6]; | |
318 | for(im1=0; im1<6; im1++) { | |
319 | im2max=fNlad[im1]; | |
320 | fphidet[im1] = new Double_t[im2max]; | |
321 | } // end for im1 | |
322 | for(im1=0; im1<6; im1++) { | |
323 | im2max=fNdet[im1]; | |
324 | for(im2=0; im2<im2max; im2++) { | |
325 | fzmin[im1][im2]=cobj.fzmin[im1][im2]; | |
326 | fzmax[im1][im2]=cobj.fzmax[im1][im2]; | |
327 | } // end for im2 | |
328 | } // end for im1 | |
329 | for(im1=0; im1<6; im1++) { | |
330 | im2max=fNlad[im1]; | |
331 | for(im2=0; im2<im2max; im2++) { | |
332 | fphimin[im1][im2]=cobj.fphimin[im1][im2]; | |
333 | fphimax[im1][im2]=cobj.fphimax[im1][im2]; | |
334 | fphidet[im1][im2]=cobj.fphidet[im1][im2]; | |
335 | } // end for im2 | |
336 | } // end for im2 | |
64ab0d55 | 337 | |
338 | ||
339 | AliITSgeom *g1 = fITS->GetITSgeom(); | |
e869281d | 340 | Int_t numOfModules = g1->GetIndexMax(); |
64ab0d55 | 341 | /* |
e869281d | 342 | fRecCylR = new Float_t *[numOfModules]; |
343 | fRecCylPhi = new Float_t *[numOfModules]; | |
344 | fRecCylZ = new Float_t *[numOfModules]; | |
64ab0d55 | 345 | */ |
e869281d | 346 | fRecCylR = new Double_t *[numOfModules]; |
347 | fRecCylPhi = new Double_t *[numOfModules]; | |
348 | fRecCylZ = new Double_t *[numOfModules]; | |
349 | fNRecPoints = new Int_t[numOfModules]; | |
350 | for(Int_t module=0; module<numOfModules; module++) { | |
64ab0d55 | 351 | Int_t nRecPoints=fNRecPoints[module]=cobj.fNRecPoints[module]; |
352 | /* | |
353 | fRecCylR[module] = new Float_t[nRecPoints]; | |
354 | fRecCylPhi[module] = new Float_t[nRecPoints]; | |
355 | fRecCylZ[module] = new Float_t[nRecPoints]; | |
356 | */ | |
357 | fRecCylR[module] = new Double_t[nRecPoints]; | |
358 | fRecCylPhi[module] = new Double_t[nRecPoints]; | |
359 | fRecCylZ[module] = new Double_t[nRecPoints]; | |
360 | Int_t ind; | |
361 | for(ind=0; ind<nRecPoints; ind++) { | |
362 | fRecCylR[module][ind]=cobj.fRecCylR[module][ind]; | |
363 | fRecCylPhi[module][ind]=cobj.fRecCylPhi[module][ind]; | |
364 | fRecCylZ[module][ind]=cobj.fRecCylZ[module][ind]; | |
365 | } | |
366 | } | |
367 | ||
368 | } | |
e869281d | 369 | /* |
370 | //______________________________________________________________________ | |
371 | void AliITSTrackerV1::DelMatrix(Int_t numOfModules) { | |
372 | // cleanup of some data members | |
373 | for(Int_t mod=0; mod<numOfModules; mod++) { | |
64ab0d55 | 374 | delete fRecCylR[mod]; |
375 | delete fRecCylPhi[mod]; | |
376 | delete fRecCylZ[mod]; | |
377 | } | |
378 | delete fRecCylR; | |
379 | delete fRecCylPhi; | |
380 | delete fRecCylZ; | |
cbcfa38d | 381 | } |
e869281d | 382 | */ |
b48af428 | 383 | //______________________________________________________________________ |
cbcfa38d | 384 | AliITSTrackerV1::~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 | //______________________________________________________________________ |
e869281d | 406 | AliITSTrackerV1 &AliITSTrackerV1::operator=(const 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(); |
e869281d | 465 | Int_t numOfModules = g1->GetIndexMax(); |
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++) { | |
64ab0d55 | 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 | //______________________________________________________________________ |
487 | void 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) { | |
5d12ce38 | 723 | TParticle *p=(TParticle*) gAlice->GetMCApp()->Particle(lpp); |
b48af428 | 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 | 905 | void 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 | //______________________________________________________________________ |
1250 | Int_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 | //______________________________________________________________________ | |
1317 | void 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]){ | |
1405 | void 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 | } | |
e869281d | 1695 |