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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 | ||
16 | /* | |
17 | $Log$ | |
9040b789 | 18 | Revision 1.22 2002/10/22 14:45:36 alibrary |
19 | Introducing Riostream.h | |
20 | ||
4ae5bbc4 | 21 | Revision 1.21 2002/02/05 09:12:26 hristov |
22 | Small mods for gcc 3.02 | |
23 | ||
bcc5d57d | 24 | Revision 1.20 2001/11/21 14:47:45 barbera |
25 | Some unuseful print-out commented out | |
26 | ||
c57de405 | 27 | Revision 1.19 2001/11/21 10:49:07 barbera |
28 | Bug correction suggested by Rene done | |
29 | ||
cf411bb5 | 30 | Revision 1.18 2001/11/20 15:46:17 barbera |
31 | Point coordinated are calculated in cylindrical reference frame once and for all at the beginning of tracking V1 | |
32 | ||
61231d74 | 33 | Revision 1.10.2.1 2001/10/24 07:26:04 hristov |
34 | All the changes from the head are merged with the release | |
35 | ||
11091b43 | 36 | Revision 1.14 2001/10/24 07:19:57 hristov |
37 | Some pointer correctly initialised in one of the constructors | |
38 | ||
a49bb2c8 | 39 | Revision 1.13 2001/10/21 19:17:12 hristov |
40 | Several pointers were set to zero in the default constructors to avoid memory management problems | |
41 | ||
55cd883f | 42 | Revision 1.12 2001/10/19 21:32:35 nilsen |
43 | Minor changes to remove compliation warning on gcc 2.92.2 compiler, and | |
44 | cleanded up a little bit of code. | |
45 | ||
b48af428 | 46 | */ |
47 | // The purpose of this class is to permorm the ITS tracking. The | |
48 | // constructor has the task to inizialize some private members. The method | |
49 | // DoTracking is written to be called by a macro. It gets the event number, | |
50 | // the minimum and maximum order number of TPC tracks that are to be tracked | |
51 | // trough the ITS, and the file where the recpoints are registered. The | |
52 | // method Recursivetracking is a recursive function that performs the | |
53 | // tracking trough the ITS The method Intersection found the layer, ladder | |
54 | // and detector whre the intersection take place and caluclate the | |
55 | // cohordinates of this intersection. It returns an integer that is 0 if the | |
56 | // intersection has been found successfully. The two mwthods Kalmanfilter | |
57 | // and kalmanfiltervert operate the kalmanfilter without and with the vertex | |
58 | // imposition respectively. The authors thank Mariana Bondila to have help | |
59 | // them to resolve some problems. July-2000 | |
04b80329 | 60 | |
4ae5bbc4 | 61 | #include <Riostream.h> |
62 | #include <Riostream.h> | |
13888096 | 63 | #include <TMath.h> |
13888096 | 64 | #include <TBranch.h> |
65 | #include <TVector.h> | |
13888096 | 66 | #include <TFile.h> |
67 | #include <TTree.h> | |
cbcfa38d | 68 | #include <TStopwatch.h> |
69 | ||
13888096 | 70 | #include "TParticle.h" |
71 | #include "AliRun.h" | |
72 | #include "AliITS.h" | |
04b80329 | 73 | #include "AliITSsegmentationSSD.h" |
13888096 | 74 | #include "AliITSgeomSPD.h" |
75 | #include "AliITSgeomSDD.h" | |
76 | #include "AliITSgeomSSD.h" | |
77 | #include "AliITSgeom.h" | |
13888096 | 78 | #include "AliITSRecPoint.h" |
04b80329 | 79 | #include "stdlib.h" |
13888096 | 80 | #include "AliKalmanTrack.h" |
81 | #include "AliMagF.h" | |
04b80329 | 82 | #include "AliITSTrackV1.h" |
83 | #include "AliITSIOTrack.h" | |
84 | #include "AliITSRad.h" | |
13888096 | 85 | #include "../TPC/AliTPCtracker.h" |
13888096 | 86 | #include "AliITSTrackerV1.h" |
0983ac5b | 87 | #include "AliITSVertex.h" |
13888096 | 88 | |
13888096 | 89 | ClassImp(AliITSTrackerV1) |
55cd883f | 90 | //______________________________________________________________________ |
91 | AliITSTrackerV1::AliITSTrackerV1() { | |
92 | //Default constructor | |
93 | fITS = 0; | |
94 | fresult = 0; | |
64ab0d55 | 95 | fPtref=0.; |
96 | fChi2max=0.; | |
97 | //fepsphi=0.; | |
98 | //fepsz=0.; | |
55cd883f | 99 | frecPoints = 0; |
100 | fvettid = 0; | |
64ab0d55 | 101 | fflagvert=0; |
55cd883f | 102 | frl = 0; |
64ab0d55 | 103 | Int_t ia; |
104 | for(ia=0; ia<6; ia++) { | |
105 | fNlad[ia]=0; | |
106 | fNdet[ia]=0; | |
107 | fAvrad[ia]=0.; | |
108 | fDetx[ia]=0.; | |
109 | fDetz[ia]=0.; | |
110 | } // end for ia | |
55cd883f | 111 | fzmin = 0; |
112 | fzmax = 0; | |
113 | fphimin = 0; | |
114 | fphimax = 0; | |
115 | fphidet = 0; | |
64ab0d55 | 116 | fNRecPoints=0; |
117 | fRecCylR=0; | |
118 | fRecCylPhi=0; | |
119 | fRecCylZ=0; | |
120 | fFieldFactor=0; | |
55cd883f | 121 | } |
b48af428 | 122 | //______________________________________________________________________ |
64ab0d55 | 123 | AliITSTrackerV1::AliITSTrackerV1(AliITS* IITTSS, Int_t evnumber, Bool_t flag) { |
b48af428 | 124 | //Origin A. Badala' and G.S. Pappalardo: |
125 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
126 | // Class constructor. It does some initializations. | |
127 | ||
a49bb2c8 | 128 | //PH Initialisation taken from the default constructor |
b48af428 | 129 | fITS = IITTSS; |
a49bb2c8 | 130 | fresult = 0; |
64ab0d55 | 131 | fPtref = 0.; |
132 | fChi2max =0.; | |
133 | frecPoints = 0; | |
a49bb2c8 | 134 | fvettid = 0; |
64ab0d55 | 135 | fflagvert = flag; |
a49bb2c8 | 136 | frl = 0; |
137 | fzmin = 0; | |
138 | fzmax = 0; | |
139 | fphimin = 0; | |
140 | fphimax = 0; | |
141 | fphidet = 0; | |
64ab0d55 | 142 | |
b48af428 | 143 | Int_t imax = 200,jmax = 450; |
144 | frl = new AliITSRad(imax,jmax); | |
145 | ||
146 | ////////// gets information on geometry ///////////////////////////// | |
64ab0d55 | 147 | AliITSgeom *g1 = fITS->GetITSgeom(); |
b48af428 | 148 | Int_t ll=1, dd=1; |
149 | TVector det(9); | |
150 | ||
b48af428 | 151 | Int_t ia; |
152 | for(ia=0; ia<6; ia++) { | |
153 | fNlad[ia]=g1->GetNladders(ia+1); | |
154 | fNdet[ia]=g1->GetNdetectors(ia+1); | |
155 | //cout<<fNlad[i]<<" "<<fNdet[i]<<"\n"; | |
156 | } // end for ia | |
b48af428 | 157 | |
64ab0d55 | 158 | //cout<<" mean radius = "; |
b48af428 | 159 | Int_t ib; |
160 | for(ib=0; ib<6; ib++) { | |
161 | g1->GetCenterThetaPhi(ib+1,ll,dd,det); | |
162 | Double_t r1=TMath::Sqrt(det(0)*det(0)+det(1)*det(1)); | |
163 | g1->GetCenterThetaPhi(ib+1,ll,dd+1,det); | |
164 | Double_t r2=TMath::Sqrt(det(0)*det(0)+det(1)*det(1)); | |
165 | fAvrad[ib]=(r1+r2)/2.; | |
166 | //cout<<fAvrad[ib]<<" "; | |
167 | } // end for ib | |
168 | //cout<<"\n"; getchar(); | |
169 | ||
170 | fDetx[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDx(); | |
171 | fDetz[0] = ((AliITSgeomSPD*)(g1->GetShape(1, ll, dd)))->GetDz(); | |
172 | ||
173 | fDetx[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDx(); | |
174 | fDetz[1] = ((AliITSgeomSPD*)(g1->GetShape(2, ll, dd)))->GetDz(); | |
175 | ||
176 | fDetx[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDx(); | |
177 | fDetz[2] = ((AliITSgeomSDD*)(g1->GetShape(3, ll, dd)))->GetDz(); | |
178 | ||
179 | fDetx[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDx(); | |
180 | fDetz[3] = ((AliITSgeomSDD*)(g1->GetShape(4, ll, dd)))->GetDz(); | |
181 | ||
182 | fDetx[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDx(); | |
183 | fDetz[4] = ((AliITSgeomSSD*)(g1->GetShape(5, ll, dd)))->GetDz(); | |
184 | ||
185 | fDetx[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDx(); | |
186 | fDetz[5] = ((AliITSgeomSSD*)(g1->GetShape(6, ll, dd)))->GetDz(); | |
187 | //cout<<" Detx Detz\n"; | |
188 | //for(Int_t la=0; la<6; la++) cout<<" "<<fDetx[la]<<" "<< | |
189 | // fDetz[la]<<endl; | |
190 | //getchar(); | |
64ab0d55 | 191 | |
b48af428 | 192 | // allocate memory and define matrices fzmin, fzmax, fphimin and fphimax // |
193 | Double_t epsz=1.2; | |
194 | Double_t epszdrift=0.05; | |
195 | ||
196 | fzmin = new Double_t*[6]; fzmax = new Double_t*[6]; | |
197 | Int_t im1, im2, im2max; | |
198 | for(im1=0; im1<6; im1++) { | |
199 | im2max=fNdet[im1]; | |
200 | fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max]; | |
201 | } // end for im1 | |
202 | ||
203 | for(im1=0; im1<6; im1++) { | |
204 | im2max=fNdet[im1]; | |
205 | for(im2=0; im2<im2max; im2++) { | |
206 | g1->GetCenterThetaPhi(im1+1,1,im2+1,det); | |
207 | if(im2!=0) fzmin[im1][im2]=det(2)-fDetz[im1]; | |
208 | else | |
209 | fzmin[im1][im2]=det(2)-(fDetz[im1])*epsz; | |
210 | if(im2!=(im2max-1)) fzmax[im1][im2]=det(2)+fDetz[im1]; | |
211 | else | |
cbcfa38d | 212 | fzmax[im1][im2]=det(2)+fDetz[im1]*epsz; |
b48af428 | 213 | if(im1==2 || im1==3) { |
214 | fzmin[im1][im2]-=epszdrift; | |
215 | fzmax[im1][im2]+=epszdrift; | |
216 | } // end if im1==2 || im1==3 | |
217 | } // end for im2 | |
218 | } // end for im1 | |
13888096 | 219 | |
b48af428 | 220 | fphimin = new Double_t*[6]; fphimax = new Double_t*[6]; |
221 | for(im1=0;im1<6;im1++) { | |
222 | im2max=fNlad[im1]; | |
223 | fphimin[im1] = new Double_t[im2max]; | |
224 | fphimax[im1] = new Double_t[im2max]; | |
225 | } // end for im1 | |
226 | ||
227 | fphidet = new Double_t*[6]; | |
228 | for(im1=0; im1<6; im1++) { | |
229 | im2max=fNlad[im1]; | |
230 | fphidet[im1] = new Double_t[im2max]; | |
231 | } // end for im1 | |
232 | ||
64ab0d55 | 233 | //Float_t global[3],local[3]; |
234 | Double_t global[3],local[3]; | |
b48af428 | 235 | Double_t pigre=TMath::Pi(); |
236 | Double_t xmin,ymin,xmax,ymax; | |
237 | ||
238 | for(im1=0; im1<6; im1++) { | |
239 | im2max=fNlad[im1]; | |
240 | for(im2=0; im2<im2max; im2++) { | |
241 | Int_t idet=2; | |
242 | g1->GetCenterThetaPhi(im1+1,im2+1,idet,det); | |
243 | fphidet[im1][im2] = TMath::ATan2(Double_t(det(1)), | |
244 | Double_t(det(0))); | |
245 | if(fphidet[im1][im2]<0.) fphidet[im1][im2]+=2.*pigre; | |
246 | local[1]=local[2]=0.; | |
247 | local[0]= -(fDetx[im1]); | |
248 | if(im1==0) local[0]= (fDetx[im1]); //to take into account | |
249 | // different reference system | |
250 | g1->LtoG(im1+1,im2+1,idet,local,global); | |
251 | xmax=global[0]; ymax=global[1]; | |
252 | local[0]= (fDetx[im1]); | |
253 | if(im1==0) local[0]= -(fDetx[im1]);//take into account different | |
254 | // reference system | |
255 | g1->LtoG(im1+1,im2+1,idet,local,global); | |
256 | xmin=global[0]; ymin=global[1]; | |
257 | fphimin[im1][im2]= TMath::ATan2(ymin,xmin); | |
258 | if(fphimin[im1][im2]<0.) fphimin[im1][im2]+=2.*pigre; | |
259 | fphimax[im1][im2]= TMath::ATan2(ymax,xmax); | |
260 | if(fphimax[im1][im2]<0.) fphimax[im1][im2]+=2.*pigre; | |
261 | } // end for im2 | |
262 | } // end for im1 | |
64ab0d55 | 263 | ////////////////////////////////////////////////////////////////////////////////////////////////////////// |
264 | /////////////// allocate memory and define vector fNRecPoints and matrices fRecCylR, fRecCylPhi, fRecCylZ ///////////// | |
265 | gAlice->GetEvent(evnumber); | |
266 | Int_t NumOfModules = g1->GetIndexMax(); | |
267 | //fRecCylR = new Float_t *[NumOfModules]; | |
268 | fRecCylR = new Double_t *[NumOfModules]; | |
269 | //fRecCylPhi = new Float_t *[NumOfModules]; | |
270 | fRecCylPhi = new Double_t *[NumOfModules]; | |
271 | //fRecCylZ = new Float_t *[NumOfModules]; | |
272 | fRecCylZ = new Double_t *[NumOfModules]; | |
273 | AliITSRecPoint *recp; | |
274 | fNRecPoints = new Int_t[NumOfModules]; | |
275 | ||
276 | for(Int_t module=0; module<NumOfModules; module++) { | |
277 | fITS->ResetRecPoints(); | |
278 | gAlice->TreeR()->GetEvent(module); | |
279 | frecPoints=fITS->RecPoints(); | |
280 | Int_t nRecPoints=fNRecPoints[module]=frecPoints->GetEntries(); | |
281 | /* | |
282 | fRecCylR[module] = new Float_t[nRecPoints]; | |
283 | fRecCylPhi[module] = new Float_t[nRecPoints]; | |
284 | fRecCylZ[module] = new Float_t[nRecPoints]; | |
285 | */ | |
286 | fRecCylR[module] = new Double_t[nRecPoints]; | |
287 | fRecCylPhi[module] = new Double_t[nRecPoints]; | |
288 | fRecCylZ[module] = new Double_t[nRecPoints]; | |
289 | Int_t ind; | |
290 | for(ind=0; ind<fNRecPoints[module]; ind++) { | |
291 | recp=(AliITSRecPoint*)frecPoints->UncheckedAt(ind); | |
292 | // Float_t global[3], local[3]; | |
293 | Double_t global[3], local[3]; | |
294 | local[0]=recp->GetX(); | |
295 | local[1]=0.; | |
296 | local[2]= recp->GetZ(); | |
297 | g1->LtoG(module,local,global); | |
298 | /* | |
299 | Float_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit | |
300 | Float_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit | |
301 | Float_t z = global[2]; // z hit | |
302 | */ | |
303 | ||
304 | Double_t r = TMath::Sqrt(global[0]*global[0]+global[1]*global[1]); // r hit | |
305 | Double_t phi = TMath::ATan2(global[1],global[0]); if(phi<0.) phi+=2.*TMath::Pi(); // phi hit | |
306 | Double_t z = global[2]; // z hit | |
307 | ||
308 | fRecCylR[module][ind]=r; | |
309 | fRecCylPhi[module][ind]=phi; | |
310 | fRecCylZ[module][ind]=z; | |
311 | } | |
312 | } | |
313 | //} | |
314 | //} | |
315 | //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// | |
316 | ||
b48af428 | 317 | |
318 | ////////// gets magnetic field factor ////////////////////////////// | |
319 | ||
320 | AliMagF * fieldPointer = gAlice->Field(); | |
321 | fFieldFactor = (Double_t)fieldPointer->Factor(); | |
322 | //cout<< " field factor = "<<fFieldFactor<<"\n"; getchar(); | |
323 | } | |
324 | //______________________________________________________________________ | |
04b80329 | 325 | AliITSTrackerV1::AliITSTrackerV1(const AliITSTrackerV1 &cobj) { |
b48af428 | 326 | // Origin A. Badala' and G.S. Pappalardo: |
327 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
328 | // copy constructor | |
64ab0d55 | 329 | |
330 | *fITS = *cobj.fITS; | |
b48af428 | 331 | *fresult = *cobj.fresult; |
332 | fPtref = cobj.fPtref; | |
333 | fChi2max = cobj.fChi2max; | |
334 | **fvettid = **cobj.fvettid; | |
335 | fflagvert = cobj.fflagvert; | |
336 | Int_t imax=200,jmax=450; | |
337 | frl = new AliITSRad(imax,jmax); | |
338 | *frl = *cobj.frl; | |
339 | fFieldFactor = cobj.fFieldFactor; | |
340 | Int_t i,im1,im2,im2max; | |
341 | for(i=0; i<6; i++) { | |
342 | fNlad[i] = cobj.fNlad[i]; | |
343 | fNdet[i] = cobj.fNdet[i]; | |
344 | fAvrad[i] = cobj.fAvrad[i]; | |
345 | fDetx[i] = cobj.fDetx[i]; | |
346 | fDetz[i] = cobj.fDetz[i]; | |
347 | } // end or i | |
348 | fzmin = new Double_t*[6]; fzmax = new Double_t*[6]; | |
349 | for(im1=0; im1<6; im1++) { | |
350 | im2max=fNdet[im1]; | |
351 | fzmin[im1] = new Double_t[im2max]; | |
352 | fzmax[im1] = new Double_t[im2max]; | |
353 | } // end for im1 | |
cbcfa38d | 354 | fphimin = new Double_t*[6]; fphimax = new Double_t*[6]; |
b48af428 | 355 | for(im1=0;im1<6;im1++) { |
356 | im2max=fNlad[im1]; | |
357 | fphimin[im1] = new Double_t[im2max]; | |
358 | fphimax[im1] = new Double_t[im2max]; | |
359 | } // end for im1 | |
360 | ||
361 | fphidet = new Double_t*[6]; | |
362 | for(im1=0; im1<6; im1++) { | |
363 | im2max=fNlad[im1]; | |
364 | fphidet[im1] = new Double_t[im2max]; | |
365 | } // end for im1 | |
366 | for(im1=0; im1<6; im1++) { | |
367 | im2max=fNdet[im1]; | |
368 | for(im2=0; im2<im2max; im2++) { | |
369 | fzmin[im1][im2]=cobj.fzmin[im1][im2]; | |
370 | fzmax[im1][im2]=cobj.fzmax[im1][im2]; | |
371 | } // end for im2 | |
372 | } // end for im1 | |
373 | for(im1=0; im1<6; im1++) { | |
374 | im2max=fNlad[im1]; | |
375 | for(im2=0; im2<im2max; im2++) { | |
376 | fphimin[im1][im2]=cobj.fphimin[im1][im2]; | |
377 | fphimax[im1][im2]=cobj.fphimax[im1][im2]; | |
378 | fphidet[im1][im2]=cobj.fphidet[im1][im2]; | |
379 | } // end for im2 | |
380 | } // end for im2 | |
64ab0d55 | 381 | |
382 | ||
383 | AliITSgeom *g1 = fITS->GetITSgeom(); | |
384 | Int_t NumOfModules = g1->GetIndexMax(); | |
385 | /* | |
386 | fRecCylR = new Float_t *[NumOfModules]; | |
387 | fRecCylPhi = new Float_t *[NumOfModules]; | |
388 | fRecCylZ = new Float_t *[NumOfModules]; | |
389 | */ | |
390 | fRecCylR = new Double_t *[NumOfModules]; | |
391 | fRecCylPhi = new Double_t *[NumOfModules]; | |
392 | fRecCylZ = new Double_t *[NumOfModules]; | |
393 | fNRecPoints = new Int_t[NumOfModules]; | |
394 | for(Int_t module=0; module<NumOfModules; module++) { | |
395 | Int_t nRecPoints=fNRecPoints[module]=cobj.fNRecPoints[module]; | |
396 | /* | |
397 | fRecCylR[module] = new Float_t[nRecPoints]; | |
398 | fRecCylPhi[module] = new Float_t[nRecPoints]; | |
399 | fRecCylZ[module] = new Float_t[nRecPoints]; | |
400 | */ | |
401 | fRecCylR[module] = new Double_t[nRecPoints]; | |
402 | fRecCylPhi[module] = new Double_t[nRecPoints]; | |
403 | fRecCylZ[module] = new Double_t[nRecPoints]; | |
404 | Int_t ind; | |
405 | for(ind=0; ind<nRecPoints; ind++) { | |
406 | fRecCylR[module][ind]=cobj.fRecCylR[module][ind]; | |
407 | fRecCylPhi[module][ind]=cobj.fRecCylPhi[module][ind]; | |
408 | fRecCylZ[module][ind]=cobj.fRecCylZ[module][ind]; | |
409 | } | |
410 | } | |
411 | ||
412 | } | |
413 | void AliITSTrackerV1::DelMatrix(Int_t NumOfModules) { | |
414 | for(Int_t mod=0; mod<NumOfModules; mod++) { | |
415 | delete fRecCylR[mod]; | |
416 | delete fRecCylPhi[mod]; | |
417 | delete fRecCylZ[mod]; | |
418 | } | |
419 | delete fRecCylR; | |
420 | delete fRecCylPhi; | |
421 | delete fRecCylZ; | |
cbcfa38d | 422 | } |
b48af428 | 423 | //______________________________________________________________________ |
cbcfa38d | 424 | AliITSTrackerV1::~AliITSTrackerV1(){ |
b48af428 | 425 | // Origin A. Badala' and G.S. Pappalardo: |
426 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
64ab0d55 | 427 | // class destructor |
428 | delete frl; | |
429 | delete fNRecPoints; | |
430 | for(Int_t i=0; i<6; i++) { | |
431 | delete fzmin[i]; | |
432 | delete fzmax[i]; | |
433 | delete fphimin[i]; | |
434 | delete fphimax[i]; | |
435 | delete fphidet[i]; | |
436 | } | |
437 | ||
438 | delete fzmin; | |
439 | delete fzmax; | |
440 | delete fphimin; | |
441 | delete fphimax; | |
442 | delete fphidet; | |
443 | ||
13888096 | 444 | } |
b48af428 | 445 | //______________________________________________________________________ |
04b80329 | 446 | AliITSTrackerV1 &AliITSTrackerV1::operator=(AliITSTrackerV1 obj) { |
b48af428 | 447 | // Origin A. Badala' and G.S. Pappalardo: |
448 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
449 | // assignement operator | |
450 | ||
64ab0d55 | 451 | *fITS = *obj.fITS; |
b48af428 | 452 | *fresult = *obj.fresult; |
453 | fPtref = obj.fPtref; | |
454 | fChi2max = obj.fChi2max; | |
455 | **fvettid = **obj.fvettid; | |
456 | fflagvert = obj.fflagvert; | |
457 | Int_t imax=200,jmax=450; | |
458 | frl = new AliITSRad(imax,jmax); | |
459 | *frl = *obj.frl; | |
460 | fFieldFactor = obj.fFieldFactor; | |
461 | Int_t i; | |
462 | for(i=0; i<6; i++) { | |
463 | fNlad[i] = obj.fNlad[i]; | |
464 | fNdet[i] = obj.fNdet[i]; | |
465 | fAvrad[i] = obj.fAvrad[i]; | |
466 | fDetx[i] = obj.fDetx[i]; | |
467 | fDetz[i] = obj.fDetz[i]; | |
468 | } // end for i | |
469 | fzmin = new Double_t*[6]; | |
470 | fzmax = new Double_t*[6]; | |
471 | Int_t im1, im2, im2max; | |
472 | for(im1=0; im1<6; im1++) { | |
473 | im2max=fNdet[im1]; | |
474 | fzmin[im1] = new Double_t[im2max]; fzmax[im1] = new Double_t[im2max]; | |
475 | } // end for im1 | |
cbcfa38d | 476 | fphimin = new Double_t*[6]; fphimax = new Double_t*[6]; |
b48af428 | 477 | for(im1=0;im1<6;im1++) { |
478 | im2max=fNlad[im1]; | |
479 | fphimin[im1] = new Double_t[im2max]; | |
480 | fphimax[im1] = new Double_t[im2max]; | |
481 | } // end for im1 | |
482 | ||
483 | fphidet = new Double_t*[6]; | |
484 | for(im1=0; im1<6; im1++) { | |
485 | im2max=fNlad[im1]; | |
486 | fphidet[im1] = new Double_t[im2max]; | |
487 | } // end for im1 | |
488 | for(im1=0; im1<6; im1++) { | |
489 | im2max=fNdet[im1]; | |
490 | for(im2=0; im2<im2max; im2++) { | |
491 | fzmin[im1][im2]=obj.fzmin[im1][im2]; | |
492 | fzmax[im1][im2]=obj.fzmax[im1][im2]; | |
493 | } // end for im2 | |
494 | } // end for im1 | |
495 | for(im1=0; im1<6; im1++) { | |
496 | im2max=fNlad[im1]; | |
497 | for(im2=0; im2<im2max; im2++) { | |
498 | fphimin[im1][im2]=obj.fphimin[im1][im2]; | |
499 | fphimax[im1][im2]=obj.fphimax[im1][im2]; | |
500 | fphidet[im1][im2]=obj.fphidet[im1][im2]; | |
501 | } // end for im2 | |
502 | } // end for im1 | |
503 | ||
64ab0d55 | 504 | AliITSgeom *g1 = fITS->GetITSgeom(); |
505 | Int_t NumOfModules = g1->GetIndexMax(); | |
506 | /* | |
507 | fRecCylR = new Float_t *[NumOfModules]; | |
508 | fRecCylPhi = new Float_t *[NumOfModules]; | |
509 | fRecCylZ = new Float_t *[NumOfModules]; | |
510 | */ | |
511 | fRecCylR = new Double_t *[NumOfModules]; | |
512 | fRecCylPhi = new Double_t *[NumOfModules]; | |
513 | fRecCylZ = new Double_t *[NumOfModules]; | |
514 | fNRecPoints = new Int_t[NumOfModules]; | |
515 | for(Int_t module=0; module<NumOfModules; module++) { | |
516 | Int_t nRecPoints=fNRecPoints[module]=obj.fNRecPoints[module]; | |
517 | /* | |
518 | fRecCylR[module] = new Float_t[nRecPoints]; | |
519 | fRecCylPhi[module] = new Float_t[nRecPoints]; | |
520 | fRecCylZ[module] = new Float_t[nRecPoints]; | |
521 | */ | |
522 | fRecCylR[module] = new Double_t[nRecPoints]; | |
523 | fRecCylPhi[module] = new Double_t[nRecPoints]; | |
524 | fRecCylZ[module] = new Double_t[nRecPoints]; | |
525 | Int_t ind; | |
526 | for(ind=0; ind<nRecPoints; ind++) { | |
527 | fRecCylR[module][ind]=obj.fRecCylR[module][ind]; | |
528 | fRecCylPhi[module][ind]=obj.fRecCylPhi[module][ind]; | |
529 | fRecCylZ[module][ind]=obj.fRecCylZ[module][ind]; | |
530 | } | |
531 | } | |
532 | ||
533 | ||
b48af428 | 534 | return *this; |
04b80329 | 535 | } |
b48af428 | 536 | //______________________________________________________________________ |
537 | void AliITSTrackerV1::DoTracking(Int_t evNumber,Int_t minTr,Int_t maxTr, | |
61231d74 | 538 | TFile *file, Bool_t realmass) { |
b48af428 | 539 | // Origin A. Badala' and G.S. Pappalardo: |
540 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
541 | // The method needs the event number, the minimum and maximum order | |
542 | // number of TPC tracks that | |
543 | // are to be tracked trough the ITS, and the file where the recpoints | |
544 | // are registered. | |
545 | // The method can be called by a macro. It preforms the tracking for | |
546 | // all good TPC tracks | |
547 | ||
548 | printf("begin DoTracking - file %p\n",file); | |
549 | ||
550 | gAlice->GetEvent(evNumber); //modificato per gestire hbt | |
13888096 | 551 | |
b48af428 | 552 | AliKalmanTrack *kkprov; |
553 | kkprov->SetConvConst(100/0.299792458/0.2/fFieldFactor); | |
554 | ||
555 | TFile *cf=TFile::Open("AliTPCclusters.root"); | |
9040b789 | 556 | AliTPCParam *digp= (AliTPCParam*)cf->Get("75x40_100x60_150x60"); |
b48af428 | 557 | if (!digp) { cerr<<"TPC parameters have not been found !\n"; getchar();} |
558 | ||
559 | cf->cd(); | |
560 | AliTPCtracker *tracker = new AliTPCtracker(digp,evNumber); | |
561 | ||
562 | // Load clusters | |
563 | tracker->LoadInnerSectors(); | |
564 | tracker->LoadOuterSectors(); | |
565 | ||
566 | // Load tracks | |
64ab0d55 | 567 | TFile *tf=TFile::Open("AliTPCtracksSorted.root"); |
b48af428 | 568 | if (!tf->IsOpen()) { |
569 | cerr<<"Can't open AliTPCtracksSorted.root !\n"; | |
570 | return ; | |
571 | } // end if | |
572 | TObjArray tracks(200000); | |
573 | char tname[100]; | |
574 | sprintf(tname,"TreeT_TPC_%d",evNumber); | |
575 | ||
576 | TTree *tracktree=(TTree*)tf->Get(tname); | |
577 | if (!tracktree) {cerr<<"Can't get a tree with TPC tracks !\n";} | |
578 | TBranch *tbranch=tracktree->GetBranch("tracks"); | |
579 | Int_t nentr=(Int_t)tracktree->GetEntries(); | |
580 | Int_t kk; | |
581 | ||
582 | AliTPCtrack *ioTrackTPC=0; | |
583 | for (kk=0; kk<nentr; kk++) { | |
584 | ioTrackTPC=new AliTPCtrack; | |
585 | tbranch->SetAddress(&ioTrackTPC); | |
586 | tracktree->GetEvent(kk); | |
587 | tracker->CookLabel(ioTrackTPC,0.1); | |
588 | tracks.AddLast(ioTrackTPC); | |
589 | } // end for kk | |
590 | delete tracker; | |
591 | tf->Close(); | |
592 | ||
593 | Int_t nt = tracks.GetEntriesFast(); | |
594 | cerr<<"Number of found tracks "<<nt<<endl; | |
595 | ||
596 | TVector vec(5); | |
597 | TTree *tr=gAlice->TreeR(); | |
598 | Int_t nent=(Int_t)tr->GetEntries(); | |
599 | frecPoints = fITS->RecPoints(); | |
600 | ||
601 | Int_t numbpoints; | |
602 | Int_t totalpoints=0; | |
603 | Int_t *np = new Int_t[nent]; | |
604 | fvettid = new Int_t* [nent]; | |
605 | Int_t mod; | |
606 | ||
607 | for (mod=0; mod<nent; mod++) { | |
608 | fvettid[mod]=0; | |
609 | fITS->ResetRecPoints(); | |
610 | gAlice->TreeR()->GetEvent(mod); | |
611 | numbpoints = frecPoints->GetEntries(); | |
612 | totalpoints+=numbpoints; | |
613 | np[mod] = numbpoints; | |
614 | //cout<<" mod = "<<mod<<" numbpoints = "<<numbpoints<<"\n";getchar(); | |
615 | fvettid[mod] = new Int_t[numbpoints]; | |
616 | Int_t ii; | |
617 | for (ii=0;ii<numbpoints; ii++) *(fvettid[mod]+ii)=0; | |
618 | } // end for mod | |
619 | ||
620 | AliTPCtrack *track=0; | |
621 | ||
622 | if(minTr < 0) {minTr = 0; maxTr = nt-1;} | |
623 | ||
624 | TVector vgeant(3); | |
625 | ||
626 | TTree tracktree1("TreeT","Tree with ITS tracks"); | |
627 | AliITSIOTrack *ioTrack=0; | |
628 | tracktree1.Branch("ITStracks","AliITSIOTrack",&ioTrack,32000,0); | |
629 | ||
61231d74 | 630 | TDatabasePDG * db = new TDatabasePDG; |
631 | ||
b48af428 | 632 | Int_t j; |
633 | for (j=minTr; j<=maxTr; j++) { | |
634 | track=(AliTPCtrack*)tracks.UncheckedAt(j); | |
635 | if (!track) continue; | |
61231d74 | 636 | |
637 | /// mass definition //////////////////////// | |
638 | Double_t mass=0.13956995; | |
639 | Int_t pcode=211; // a pion by default | |
640 | if(realmass) { | |
641 | Int_t TPClabel=TMath::Abs( track->GetLabel() ); | |
642 | TParticle *p = (TParticle*)gAlice->Particle(TPClabel); | |
643 | pcode=p->GetPdgCode(); | |
644 | // Int_t mothercode=p->GetFirstMother(); | |
645 | //if(mothercode>0 ) numofsecondaries++; else numofprimaries++; | |
646 | } | |
647 | //if(!pcode) pcode=211; | |
648 | if(TMath::Abs(pcode)<20443) mass=db->GetParticle(pcode)->Mass(); | |
649 | ||
650 | ||
651 | /////////////////////////////////////////////// | |
64ab0d55 | 652 | /* |
b48af428 | 653 | ////// propagation to the end of TPC ////////////// |
654 | Double_t xk=77.415; | |
61231d74 | 655 | track->PropagateTo(xk, 28.94, 1.204e-3,mass); //Ne |
b48af428 | 656 | xk -=0.01; |
61231d74 | 657 | track->PropagateTo(xk, 44.77, 1.71,mass); //Tedlar |
b48af428 | 658 | xk -=0.04; |
61231d74 | 659 | track->PropagateTo(xk, 44.86, 1.45,mass); //kevlar |
b48af428 | 660 | xk -=2.0; |
61231d74 | 661 | track->PropagateTo(xk, 41.28, 0.029,mass); //Nomex |
b48af428 | 662 | xk-=16; |
61231d74 | 663 | track->PropagateTo(xk,36.2,1.98e-3,mass); //C02 |
b48af428 | 664 | xk -=0.01; |
61231d74 | 665 | track->PropagateTo(xk, 24.01, 2.7,mass); //Al |
b48af428 | 666 | xk -=0.01; |
61231d74 | 667 | track->PropagateTo(xk, 44.77, 1.71,mass); //Tedlar |
b48af428 | 668 | xk -=0.04; |
61231d74 | 669 | track->PropagateTo(xk, 44.86, 1.45,mass); //kevlar |
b48af428 | 670 | xk -=0.5; |
61231d74 | 671 | track->PropagateTo(xk, 41.28, 0.029,mass); //Nomex |
b48af428 | 672 | //////////////////////////////////////////////////////////////////// |
64ab0d55 | 673 | */ |
d3ab000e | 674 | // new propagation to the end of TPC |
64ab0d55 | 675 | Double_t xk=80.; |
676 | // track->PropagateTo(xk,0.,0.); //Ne if it's still there //attenzione funziona solo se modifica in TPC | |
677 | // Double_t xk=77.415; | |
d3ab000e | 678 | track->PropagateTo(xk, 28.94, 1.204e-3); |
679 | xk-=0.005; | |
680 | track->PropagateTo(xk, 44.77,1.71); //Tedlar | |
681 | xk-=0.02; | |
682 | track->PropagateTo(xk, 44.86, 1.45); //Kevlar | |
683 | xk-=2.0; | |
684 | track->PropagateTo(xk, 41.28, 0.029);//Nomex | |
685 | xk-=0.02; | |
686 | track->PropagateTo(xk, 44.86, 1.45); //Kevlar | |
687 | xk-=0.005; | |
688 | track->PropagateTo(xk, 44.77, 1.71); //Tedlar | |
689 | ||
690 | xk=61.; | |
64ab0d55 | 691 | // track->PropagateTo(xk,0.,0.); //C02 |
692 | track->PropagateTo(xk,36.2,1.98e-3); //C02 //attenzione funziona solo se modifica in TPC | |
d3ab000e | 693 | |
694 | xk -=0.005; | |
695 | track->PropagateTo(xk, 24.01, 2.7); //Al | |
696 | xk -=0.005; | |
697 | track->PropagateTo(xk, 44.77, 1.71); //Tedlar | |
698 | xk -=0.02; | |
699 | track->PropagateTo(xk, 44.86, 1.45); //Kevlar | |
700 | xk -=0.5; | |
701 | track->PropagateTo(xk, 41.28, 0.029); //Nomex | |
702 | xk -=0.02; | |
703 | track->PropagateTo(xk, 44.86, 1.45); //Kevlar | |
704 | xk -=0.005; | |
705 | track->PropagateTo(xk, 44.77, 1.71); //Tedlar | |
706 | xk -=0.005; | |
64ab0d55 | 707 | track->PropagateTo(xk, 24.01, 2.7); //Al |
708 | //////////////////////////////////////////////////////////////////////////////////////////////////////// | |
61231d74 | 709 | AliITSTrackV1 trackITS(*track); |
710 | trackITS.PutMass(mass); //new to add mass to track | |
b48af428 | 711 | if(fresult){ delete fresult; fresult=0;} |
712 | fresult = new AliITSTrackV1(trackITS); | |
713 | ||
714 | AliITSTrackV1 primaryTrack(trackITS); | |
715 | vgeant=(*fresult).GetVertex(); | |
716 | ||
717 | // Definition of dv and zv for vertex constraint | |
718 | Double_t sigmaDv=0.0050; Double_t sigmaZv=0.010; | |
719 | //Double_t sigmaDv=0.0015; Double_t sigmaZv=0.0015; | |
13888096 | 720 | Double_t uniform= gRandom->Uniform(); |
721 | Double_t signdv; | |
722 | if(uniform<=0.5) signdv=-1.; | |
b48af428 | 723 | else |
724 | signdv=1.; | |
725 | ||
04b80329 | 726 | Double_t vr=TMath::Sqrt(vgeant(0)*vgeant(0)+ vgeant(1)*vgeant(1)); |
b48af428 | 727 | Double_t dv=gRandom->Gaus(signdv*vr,(Float_t)sigmaDv); |
728 | Double_t zv=gRandom->Gaus(vgeant(2),(Float_t)sigmaZv); | |
729 | //cout<<" Dv e Zv = "<<dv<<" "<<zv<<"\n"; | |
730 | trackITS.SetDv(dv); | |
731 | trackITS.SetZv(zv); | |
732 | trackITS.SetsigmaDv(sigmaDv); | |
733 | trackITS.SetsigmaZv(sigmaZv); | |
734 | (*fresult).SetDv(dv); | |
735 | (*fresult).SetZv(zv); | |
736 | (*fresult).SetsigmaDv(sigmaDv); | |
737 | (*fresult).SetsigmaZv(sigmaZv); | |
738 | primaryTrack.SetDv(dv); | |
739 | primaryTrack.SetZv(zv); | |
740 | primaryTrack.SetsigmaDv(sigmaDv); | |
741 | primaryTrack.SetsigmaZv(sigmaZv); | |
742 | primaryTrack.PrimaryTrack(frl); | |
743 | TVector d2=primaryTrack.Getd2(); | |
744 | TVector tgl2=primaryTrack.Gettgl2(); | |
745 | TVector dtgl=primaryTrack.Getdtgl(); | |
746 | trackITS.Setd2(d2); trackITS.Settgl2(tgl2); | |
747 | trackITS.Setdtgl(dtgl); | |
748 | (*fresult).Setd2(d2); (*fresult).Settgl2(tgl2); | |
749 | (*fresult).Setdtgl(dtgl); | |
750 | /* | |
751 | trackITS.SetVertex(vertex); trackITS.SetErrorVertex(ervertex); | |
752 | (*result).SetVertex(vertex); (*result).SetErrorVertex(ervertex); | |
753 | */ | |
754 | TList *list= new TList(); | |
755 | ||
756 | list->AddLast(&trackITS); | |
757 | ||
758 | fPtref=TMath::Abs( (trackITS).GetPt() ); | |
759 | if(fPtref>1.0) fChi2max=40.; | |
760 | if(fPtref<=1.0) fChi2max=20.; | |
761 | if(fPtref<0.4 ) fChi2max=100.; | |
762 | if(fPtref<0.2 ) fChi2max=40.; | |
763 | // if(fPtref<0.4 ) fChi2max=30.; | |
764 | // if(fPtref<0.2 ) fChi2max=20.; | |
765 | //if(fPtref<0.2 ) fChi2max=10.; | |
766 | //if(fPtref<0.1 ) fChi2max=5.; | |
c57de405 | 767 | //cout << "\n Pt = " << fPtref <<"\n"; //stampa |
b48af428 | 768 | RecursiveTracking(list); |
769 | list->Delete(); | |
770 | delete list; | |
771 | ||
772 | Int_t itot=-1; | |
773 | TVector vecTotLabRef(18); | |
774 | Int_t lay, k; | |
775 | for(lay=5; lay>=0; lay--) { | |
776 | TVector vecLabRef(3); | |
777 | vecLabRef=(*fresult).GetLabTrack(lay); | |
778 | Float_t clustZ=(*fresult).GetZclusterTrack( lay); | |
779 | for(k=0; k<3; k++){ | |
04b80329 | 780 | Int_t lpp=(Int_t)vecLabRef(k); |
781 | if(lpp>=0) { | |
b48af428 | 782 | TParticle *p=(TParticle*) gAlice->Particle(lpp); |
783 | Int_t pcode=p->GetPdgCode(); | |
784 | if(pcode==11) vecLabRef(k)=p->GetFirstMother(); | |
785 | } // end if | |
786 | itot++; vecTotLabRef(itot)=vecLabRef(k); | |
64ab0d55 | 787 | if(vecLabRef(k)==0. && clustZ == -1.) vecTotLabRef(itot) =-3.; |
b48af428 | 788 | } // end for k |
789 | } // end for lay | |
790 | Long_t labref; | |
791 | Int_t freq; | |
792 | (*fresult).Search(vecTotLabRef, labref, freq); | |
793 | ||
794 | //if(freq < 6) labref=-labref; // cinque - sei | |
795 | if(freq < 5) labref=-labref; // cinque - sei | |
796 | (*fresult).SetLabel(labref); | |
797 | ||
798 | // cout<<" progressive track number = "<<j<<"\r"; | |
799 | // cout<<j<<"\r"; | |
800 | Int_t numOfCluster=(*fresult).GetNumClust(); | |
c57de405 | 801 | //cout<<" progressive track number = "<<j<<"\n"; // stampa |
b48af428 | 802 | Long_t labITS=(*fresult).GetLabel(); |
c57de405 | 803 | //cout << " ITS track label = " << labITS << "\n"; // stampa |
b48af428 | 804 | Int_t lab=track->GetLabel(); |
c57de405 | 805 | //cout << " TPC track label = " << lab <<"\n"; // stampa |
b48af428 | 806 | //propagation to vertex |
807 | ||
808 | Double_t rbeam=3.; | |
61231d74 | 809 | if((*fresult).DoNotCross(rbeam)) continue; //no intersection with beampipe |
b48af428 | 810 | (*fresult).Propagation(rbeam); |
811 | Double_t c00,c10,c11,c20,c21,c22,c30,c31,c32,c33,c40,c41,c42,c43,c44; | |
812 | (*fresult).GetCElements(c00, | |
813 | c10,c11, | |
814 | c20,c21,c22, | |
815 | c30,c31,c32,c33, | |
816 | c40,c41,c42,c43,c44); | |
13888096 | 817 | |
b48af428 | 818 | Double_t pt=TMath::Abs((*fresult).GetPt()); |
819 | Double_t dr=(*fresult).GetD(); | |
820 | Double_t z=(*fresult).GetZ(); | |
821 | Double_t tgl=(*fresult).GetTgl(); | |
822 | Double_t c=(*fresult).GetC(); | |
823 | Double_t cy=c/2.; | |
824 | Double_t dz=z-(tgl/cy)*TMath::ASin((*fresult).Arga(rbeam)); | |
825 | dz-=vgeant(2); | |
826 | // cout<<" dr e dz alla fine = "<<dr<<" "<<dz<<"\n"; getchar(); | |
827 | Double_t phi=(*fresult).Getphi(); | |
828 | Double_t phivertex = phi - TMath::ASin((*fresult).ArgA(rbeam)); | |
829 | Double_t duepi=2.*TMath::Pi(); | |
830 | if(phivertex>duepi) phivertex-=duepi; | |
831 | if(phivertex<0.) phivertex+=duepi; | |
832 | ///////////////////////////////////////////////////////////// | |
833 | Int_t idmodule,idpoint; | |
834 | if(numOfCluster >=5) { // cinque - sei | |
835 | //if(numOfCluster ==6) { // cinque - sei | |
836 | AliITSIOTrack outTrack; | |
837 | ioTrack=&outTrack; | |
838 | ioTrack->SetStatePhi(phi); | |
839 | ioTrack->SetStateZ(z); | |
840 | ioTrack->SetStateD(dr); | |
841 | ioTrack->SetStateTgl(tgl); | |
842 | ioTrack->SetStateC(c); | |
843 | Double_t radius=(*fresult).Getrtrack(); | |
844 | ioTrack->SetRadius(radius); | |
845 | Int_t charge; | |
846 | if(c>0.) charge=-1; else charge=1; | |
847 | ioTrack->SetCharge(charge); | |
848 | ioTrack->SetCovMatrix(c00, | |
849 | c10,c11, | |
850 | c20,c21,c22, | |
851 | c30,c31,c32,c33, | |
852 | c40,c41,c42,c43,c44); | |
853 | Double_t px=pt*TMath::Cos(phivertex); | |
854 | Double_t py=pt*TMath::Sin(phivertex); | |
855 | Double_t pz=pt*tgl; | |
856 | Double_t xtrack=dr*TMath::Sin(phivertex); | |
857 | Double_t ytrack=dr*TMath::Cos(phivertex); | |
858 | Double_t ztrack=dz+vgeant(2); | |
859 | ioTrack->SetPx(px); | |
860 | ioTrack->SetPy(py); | |
861 | ioTrack->SetPz(pz); | |
862 | ioTrack->SetX(xtrack); | |
863 | ioTrack->SetY(ytrack); | |
864 | ioTrack->SetZ(ztrack); | |
865 | ioTrack->SetLabel(labITS); | |
866 | ioTrack->SetTPCLabel(lab); | |
61231d74 | 867 | ioTrack->SetDz(dz); |
b48af428 | 868 | Int_t il; |
869 | for(il=0;il<6; il++){ | |
870 | ioTrack->SetIdPoint(il,(*fresult).GetIdPoint(il)); | |
871 | ioTrack->SetIdModule(il,(*fresult).GetIdModule(il)); | |
872 | } // end for il | |
873 | tracktree1.Fill(); | |
874 | for (il=0;il<6;il++) { | |
875 | idpoint=(*fresult).GetIdPoint(il); | |
876 | idmodule=(*fresult).GetIdModule(il); | |
61231d74 | 877 | if(idmodule>0.) *(fvettid[idmodule]+idpoint)=1; |
878 | ||
b48af428 | 879 | ioTrack->SetIdPoint(il,idpoint); |
880 | ioTrack->SetIdModule(il,idmodule); | |
881 | } // end for il | |
882 | } // end if on numOfCluster | |
883 | //gObjectTable->Print(); // stampa memoria | |
884 | } // end for (int j=minTr; j<=maxTr; j++) | |
61231d74 | 885 | delete db; |
b48af428 | 886 | static Bool_t first=kTRUE; |
887 | static TFile *tfile; | |
888 | if(first) { | |
889 | tfile=new TFile("itstracks.root","RECREATE"); | |
890 | //cout<<"I have opened itstracks.root file "<<endl; | |
891 | } // end if | |
892 | first=kFALSE; | |
893 | tfile->cd(); | |
894 | tfile->ls(); | |
895 | char hname[30]; | |
896 | sprintf(hname,"TreeT%d",evNumber); | |
897 | tracktree1.Write(hname); | |
898 | ||
899 | TTree *fAli=gAlice->TreeK(); | |
900 | TFile *fileAli=0; | |
901 | if (fAli) fileAli =fAli->GetCurrentFile(); | |
902 | fileAli->cd(); | |
903 | //////////////////////////////////////////////////////////////////// | |
904 | ||
905 | printf("delete vectors\n"); | |
906 | if(np) delete [] np; | |
907 | if(fvettid) delete [] fvettid; | |
908 | if(fresult) {delete fresult; fresult=0;} | |
04b80329 | 909 | } |
b48af428 | 910 | //______________________________________________________________________ |
04b80329 | 911 | void AliITSTrackerV1::RecursiveTracking(TList *trackITSlist) { |
b48af428 | 912 | // This function perform the recursive tracking in ITS detectors |
913 | // reference is a pointer to the final best track | |
914 | // Origin A. Badala' and G.S. Pappalardo: | |
915 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
916 | // The authors thank Mariana Bondila to have help them to resolve some | |
917 | // problems. July-2000 | |
918 | ||
919 | //Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9; | |
920 | // Rlayer[3]=23.8; Rlayer[4]=39.1; Rlayer[5]=43.6; //vecchio | |
921 | ||
922 | ////////////////////// | |
923 | Float_t sigmaphil[6], sigmazl[6]; | |
924 | sigmaphil[0]=1.44e-6/(fAvrad[0]*fAvrad[0]); | |
925 | sigmaphil[1]=1.44e-6/(fAvrad[1]*fAvrad[1]); | |
926 | sigmaphil[2]=1.444e-5/(fAvrad[2]*fAvrad[2]); | |
927 | sigmaphil[3]=1.444e-5/(fAvrad[3]*fAvrad[3]); | |
928 | sigmaphil[4]=4e-6/(fAvrad[4]*fAvrad[4]); | |
929 | sigmaphil[5]=4e-6/(fAvrad[5]*fAvrad[5]); | |
930 | sigmazl[0]=1e-2; | |
931 | sigmazl[1]=1e-2; | |
932 | sigmazl[2]=7.84e-4; | |
933 | sigmazl[3]=7.84e-4; | |
934 | sigmazl[4]=0.6889; | |
935 | sigmazl[5]=0.6889; | |
936 | /////////////////////////////////////////////////////////// | |
937 | Int_t index; | |
938 | AliITSgeom *g1 = fITS->GetITSgeom(); | |
939 | AliITSRecPoint *recp; | |
940 | for(index =0; index<trackITSlist->GetSize(); index++) { | |
941 | AliITSTrackV1 *trackITS = (AliITSTrackV1 *) trackITSlist->At(index); | |
942 | if((*trackITS).GetLayer()==7) fresult->SetChi2(10.223e140); | |
943 | // cout <<" Layer inizio = "<<(*trackITS).GetLayer()<<"\n"; | |
944 | // cout<<"fvtrack =" <<"\n"; | |
945 | // cout << (*trackITS)(0) << " "<<(*trackITS)(1)<<" " | |
946 | // <<(*trackITS)(2)<<" "<<(*trackITS)(3)<<" " | |
947 | // <<(*trackITS)(4)<<"\n"; | |
948 | // cout<< " rtrack = "<<(*trackITS).Getrtrack()<<"\n"; | |
949 | // cout<< " Pt = "<<(*trackITS).GetPt()<<"\n"; | |
950 | // getchar(); | |
951 | Double_t chi2Now, chi2Ref; | |
952 | Float_t numClustRef = fresult->GetNumClust(); | |
953 | if((*trackITS).GetLayer()==1 ) { | |
954 | chi2Now = trackITS->GetChi2(); | |
955 | Float_t numClustNow = trackITS->GetNumClust(); | |
956 | if(trackITS->GetNumClust()) | |
957 | chi2Now /= (Double_t)trackITS->GetNumClust(); | |
958 | chi2Ref = fresult->GetChi2(); | |
959 | if(fresult->GetNumClust()) | |
960 | chi2Ref /= (Double_t)fresult->GetNumClust(); | |
961 | //cout<<" chi2Now and chi2Ref = "<<chi2Now<<" "<<chi2Ref<<"\n"; | |
962 | if( numClustNow > numClustRef ) {*fresult = *trackITS;} | |
963 | if((numClustNow == numClustRef )&& | |
964 | (chi2Now < chi2Ref)) { | |
965 | *fresult = *trackITS; | |
966 | } // end if | |
967 | continue; | |
968 | } // end if | |
969 | ||
970 | if(trackITS->Getfnoclust()>=2) continue; | |
971 | Float_t numClustNow = trackITS->GetNumClust(); | |
972 | if(numClustNow) { | |
973 | chi2Now = trackITS->GetChi2(); | |
974 | ||
975 | if(numClustNow<numClustRef && chi2Now>fresult->GetChi2()) continue; | |
976 | //cout<<" chi2Now = "<<chi2Now<<"\n"; | |
64ab0d55 | 977 | |
b48af428 | 978 | chi2Now/=numClustNow; |
979 | if(fPtref > 1.0 && chi2Now > 30.) continue; | |
980 | if((fPtref >= 0.6 && fPtref<=1.0) && chi2Now > 40.) continue; | |
981 | // if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 40.) continue; | |
982 | // if(fPtref <= 0.2 && chi2Now > 8.) continue; | |
983 | if((fPtref <= 0.6 && fPtref>0.2)&& chi2Now > 30.) continue; | |
984 | if(fPtref <= 0.2 && chi2Now > 7.) continue; | |
985 | ///////////////////////////// | |
986 | } // end if | |
987 | ||
988 | Int_t layerInit = (*trackITS).GetLayer(); | |
989 | Int_t layernew = layerInit - 2;// -1 for new layer, -1 for matrix index | |
990 | TList listoftrack; | |
991 | Int_t ladp, ladm, detp,detm,ladinters,detinters; | |
992 | Int_t layerfin=layerInit-1; | |
993 | // cout<<"Prima di intersection \n"; | |
b48af428 | 994 | Int_t outinters=Intersection(*trackITS,layerfin,ladinters,detinters); |
b48af428 | 995 | // cout<<" outinters = "<<outinters<<"\n"; |
996 | // cout<<" Layer ladder detector intersection =" | |
997 | // <<layerfin<<" "<<ladinters<<" "<<detinters<<"\n"; | |
998 | // cout << " phiinters zinters = "<<(*trackITS)(0) | |
999 | // << " "<<(*trackITS)(1)<<"\n"; getchar(); | |
1000 | if(outinters==-1) continue; | |
1001 | Int_t flaghit=0; | |
1002 | if(outinters==0){ | |
1003 | TVector toucLad(9), toucDet(9); | |
1004 | Int_t lycur=layerfin; | |
1005 | ladp=ladinters+1; | |
1006 | ladm=ladinters-1; | |
1007 | if(ladm <= 0) ladm=fNlad[layerfin-1]; | |
1008 | if(ladp > fNlad[layerfin-1]) ladp=1; | |
1009 | detp=detinters+1; | |
1010 | detm=detinters-1; | |
1011 | Int_t idetot=1; | |
1012 | /* | |
1013 | toucLad(0)=ladinters; toucLad(1)=ladm; toucLad(2)=ladp; | |
1014 | toucLad(3)=ladinters; toucLad(4)=ladm; toucLad(5)=ladp; | |
1015 | toucLad(6)=ladinters; toucLad(7)=ladm; toucLad(8)=ladp; | |
1016 | toucDet(0)=detinters; toucDet(1)=detinters; toucDet(2)=detinters; | |
1017 | if(detm > 0 && detp <= fNdet[layerfin-1]) { | |
1018 | idetot=9; | |
1019 | toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm; | |
1020 | toucDet(6)=detp; toucDet(7)=detp; toucDet(8)=detp; | |
1021 | } // end if | |
1022 | if(detm > 0 && detp > fNdet[layerfin-1]) { | |
1023 | idetot=6; | |
1024 | toucDet(3)=detm; toucDet(4)=detm; toucDet(5)=detm; | |
1025 | } // end if | |
1026 | if(detm <= 0 && detp <= fNdet[layerfin-1]) { | |
1027 | idetot=6; | |
1028 | toucDet(3)=detp; toucDet(4)=detp; toucDet(5)=detp; | |
1029 | } // end if | |
1030 | */ | |
f66ae545 | 1031 | Float_t epsphi=5.0, epsz=5.0; |
b48af428 | 1032 | if(fPtref<0.2) {epsphi=3.; epsz=3.;} |
64ab0d55 | 1033 | // new definition of idetot e toucLad e toucDet to be |
b48af428 | 1034 | // transformed in a method |
1035 | // these values could be modified | |
1036 | Float_t pigre=TMath::Pi(); | |
1037 | Float_t rangephi=5., rangez=5.; | |
1038 | if(layerfin==1 || layerfin ==2){ | |
1039 | rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+ | |
1040 | (*trackITS).GetSigmaphi()); | |
1041 | rangez = 40.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+ | |
1042 | (*trackITS).GetSigmaZ()); | |
1043 | } // end if | |
1044 | if(layerfin==3 || layerfin ==4){ | |
1045 | //rangephi=30.*fepsphi*TMath::Sqrt(sigmaphil[layerfin-1]+ | |
1046 | // (*trackITS).GetSigmaphi()); | |
1047 | //rangez = 40.*fepsz*TMath::Sqrt(sigmazl[layerfin-1]+ | |
1048 | // (*trackITS).GetSigmaZ()); | |
1049 | rangephi=40.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+ | |
1050 | (*trackITS).GetSigmaphi()); | |
1051 | rangez = 50.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+ | |
1052 | (*trackITS).GetSigmaZ()); | |
1053 | } // end if | |
1054 | if(layerfin==5 || layerfin ==6){ | |
1055 | rangephi=20.*epsphi*TMath::Sqrt(sigmaphil[layerfin-1]+ | |
1056 | (*trackITS).GetSigmaphi()); | |
1057 | rangez =5.*epsz*TMath::Sqrt(sigmazl[layerfin-1]+ | |
1058 | (*trackITS).GetSigmaZ()); | |
1059 | } // end if | |
1060 | Float_t phinters, zinters; | |
1061 | phinters=(*trackITS).Getphi(); | |
1062 | zinters=(*trackITS).GetZ(); | |
1063 | Float_t distz = 0.0; | |
1064 | Float_t phicm, phicp, distphim, distphip; | |
1065 | phicm=phinters; | |
cf411bb5 | 1066 | if(phinters>fphimax[layerfin-1][ladm-1]) phicm=phinters-2*pigre; //corretto il 20-11-2001 |
1067 | distphim=TMath::Abs(phicm-fphimax[layerfin-1][ladm-1]); //corretto il 20-11-2001 | |
b48af428 | 1068 | phicp=phinters; |
cf411bb5 | 1069 | //cout<<" fNlad[layerfin-1] e ladp = "<<fNlad[layerfin-1]<<" "<<ladp<<endl; |
1070 | if(phinters>fphimin[layerfin-1][ladp-1]) phicp=phinters-2.*pigre; //corretto il 20-11-2001 | |
1071 | distphip=TMath::Abs(phicp-fphimin[layerfin-1][ladp-1]); //corretto il 20-11-2001 | |
b48af428 | 1072 | Int_t flagzmin=0; |
1073 | Int_t flagzmax=0; | |
1074 | idetot=1; | |
1075 | toucLad(0)=ladinters; toucDet(0)=detinters; | |
1076 | if(detm>0) distz=TMath::Abs(zinters-fzmax[layerfin-1][detm-1]); | |
1077 | if(detm>0 && rangez>=distz){ | |
1078 | flagzmin=1; | |
1079 | idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detm; | |
1080 | if(rangephi>=distphim){ | |
1081 | idetot++; | |
1082 | toucLad(idetot-1)=ladm; | |
1083 | toucDet(idetot-1)=detinters; | |
1084 | idetot++; | |
1085 | toucLad(idetot-1)=ladm; | |
1086 | toucDet(idetot-1)=detm; | |
1087 | } // end if | |
1088 | if(rangephi>=distphip){ | |
1089 | idetot++; | |
1090 | toucLad(idetot-1)=ladp; | |
1091 | toucDet(idetot-1)=detinters; | |
1092 | idetot++; | |
1093 | toucLad(idetot-1)=ladp; | |
1094 | toucDet(idetot-1)=detm; | |
1095 | } // end if | |
1096 | } //end detm>0.... | |
1097 | if(detp<=fNdet[layerfin-1]) | |
1098 | distz=TMath::Abs(zinters-fzmin[layerfin-1][detp-1]); | |
1099 | if(detp<=fNdet[layerfin-1] && rangez>=distz){ | |
1100 | flagzmax=1; | |
1101 | idetot++; toucLad(idetot-1)=ladinters; toucDet(idetot-1)=detp; | |
1102 | if(rangephi>=distphim){ | |
1103 | idetot++; toucLad(idetot-1)=ladm; toucDet(idetot-1)=detp; | |
1104 | if(flagzmin == 0) { | |
1105 | idetot++; | |
1106 | toucLad(idetot-1)=ladm; | |
1107 | toucDet(idetot-1)=detinters; | |
1108 | } // end if | |
1109 | } // end if | |
1110 | if(rangephi>=distphip){ | |
1111 | idetot++; | |
1112 | toucLad(idetot-1)=ladp; | |
1113 | toucDet(idetot-1)=detp; | |
1114 | if(flagzmin == 0) { | |
1115 | idetot++; | |
1116 | toucLad(idetot-1)=ladp; | |
1117 | toucDet(idetot-1)=detinters; | |
1118 | } // end if | |
1119 | } // end if | |
1120 | } //end detm<fNdet[....... | |
1121 | ||
1122 | if(flagzmin == 0 && flagzmax==0){ | |
1123 | if(rangephi>=distphim){ | |
1124 | idetot++; | |
1125 | toucLad(idetot-1)=ladm; | |
1126 | toucDet(idetot-1)=detinters; | |
1127 | } // end if | |
1128 | if(rangephi>=distphip){ | |
1129 | idetot++; | |
1130 | toucLad(idetot-1)=ladp; | |
1131 | toucDet(idetot-1)=detinters; | |
1132 | } // end if | |
1133 | } // end if | |
1134 | //////////////////////////////////////////////////////////// | |
1135 | Int_t iriv; | |
1136 | for (iriv=0; iriv<idetot; iriv++) { //for on detectors | |
1137 | /////////////////////////////////////////////////////// | |
1138 | /*** Rec points sorted by module *****/ | |
1139 | /**************************************/ | |
64ab0d55 | 1140 | Int_t indexmod; |
b48af428 | 1141 | indexmod = g1->GetModuleIndex(lycur,(Int_t)toucLad(iriv), |
64ab0d55 | 1142 | (Int_t)toucDet(iriv)); |
b48af428 | 1143 | fITS->ResetRecPoints(); |
1144 | gAlice->TreeR()->GetEvent(indexmod); | |
1145 | Int_t npoints=frecPoints->GetEntries(); | |
64ab0d55 | 1146 | |
b48af428 | 1147 | Int_t indnew; |
1148 | for(indnew=0; indnew<npoints; indnew++){ | |
1149 | if (*(fvettid[indexmod]+indnew)==0) | |
1150 | recp =(AliITSRecPoint*)frecPoints->UncheckedAt(indnew); | |
1151 | else | |
f66ae545 | 1152 | continue; |
b48af428 | 1153 | TVector cluster(3),vecclust(9); |
64ab0d55 | 1154 | //vecclust(6)=vecclust(7)=vecclust(8)=-1.; |
1155 | Double_t sigma[2]; | |
1156 | // now vecclust is with cylindrical cohordinates | |
1157 | vecclust(0)=(Float_t)fRecCylR[indexmod][indnew]; | |
1158 | vecclust(1)=(Float_t)fRecCylPhi[indexmod][indnew]; | |
1159 | vecclust(2)=(Float_t)fRecCylZ[indexmod][indnew]; | |
b48af428 | 1160 | vecclust(3) = (Float_t)recp->fTracks[0]; |
b48af428 | 1161 | vecclust(4) = (Float_t)indnew; |
64ab0d55 | 1162 | vecclust(5) = (Float_t)indexmod; |
b48af428 | 1163 | vecclust(6) = (Float_t)recp->fTracks[0]; |
1164 | vecclust(7) = (Float_t)recp->fTracks[1]; | |
1165 | vecclust(8) = (Float_t)recp->fTracks[2]; | |
1166 | sigma[0] = (Double_t) recp->GetSigmaX2(); | |
1167 | sigma[1] = (Double_t) recp->GetSigmaZ2(); | |
64ab0d55 | 1168 | |
1169 | cluster(0)=fRecCylR[indexmod][indnew]; | |
1170 | cluster(1)=fRecCylPhi[indexmod][indnew]; | |
1171 | cluster(2)=fRecCylZ[indexmod][indnew]; | |
1172 | ||
b48af428 | 1173 | // cout<<" layer = "<<play<<"\n"; |
1174 | // cout<<" cluster prima = "<<vecclust(0)<<" " | |
1175 | // <<vecclust(1)<<" " | |
1176 | // <<vecclust(2)<<"\n"; getchar(); | |
1177 | ||
1178 | Float_t sigmatotphi, sigmatotz; | |
1179 | // Float_t epsphi=5.0, epsz=5.0; | |
1180 | //if(fPtref<0.2) {epsphi=3.; epsz=3.;} | |
1181 | Double_t rTrack=(*trackITS).Getrtrack(); | |
1182 | Double_t sigmaphi=sigma[0]/(rTrack*rTrack); | |
1183 | sigmatotphi=epsphi*TMath::Sqrt(sigmaphi + | |
1184 | (*trackITS).GetSigmaphi()); | |
1185 | sigmatotz=epsz*TMath::Sqrt(sigma[1] + | |
1186 | (*trackITS).GetSigmaZ()); | |
1187 | //cout<<"cluster e sigmatotphi e track = "<<cluster(0) | |
1188 | // <<" "<<cluster(1)<<" "<<sigmatotphi<<" " | |
1189 | // <<vecclust(3)<<"\n"; | |
1190 | //if(vecclust(3)==481) getchar(); | |
1191 | if(cluster(1)<6. && (*trackITS).Getphi()>6.) | |
1192 | cluster(1)=cluster(1)+(2.*TMath::Pi()); | |
1193 | if(cluster(1)>6. && (*trackITS).Getphi()<6.) | |
1194 | cluster(1)=cluster(1)-(2.*TMath::Pi()); | |
1195 | if(TMath::Abs(cluster(1)-(*trackITS).Getphi())>sigmatotphi) | |
1196 | continue; | |
1197 | // cout<<" supero sigmaphi \n"; | |
1198 | AliITSTrackV1 *newTrack = new AliITSTrackV1((*trackITS)); | |
1199 | (*newTrack).SetLayer((*trackITS).GetLayer()-1); | |
1200 | if (TMath::Abs(rTrack-cluster(0))/rTrack>1e-6) | |
1201 | (*newTrack).Correct(Double_t(cluster(0))); | |
1202 | //cout<<" cluster(2) e(*newTrack).GetZ()="<<cluster(2)<<" " | |
1203 | // << (*newTrack).GetZ()<<"\n"; | |
1204 | if(TMath::Abs(cluster(2)-(*newTrack).GetZ()) > sigmatotz){ | |
1205 | delete newTrack; | |
1206 | continue; | |
1207 | } // end if | |
1208 | Double_t sigmanew[2]; | |
1209 | sigmanew[0]= sigmaphi; | |
1210 | sigmanew[1]=sigma[1]; | |
1211 | Double_t m[2]; | |
1212 | m[0]=cluster(1); | |
1213 | m[1]=cluster(2); | |
1214 | // Double_t chi2pred=newTrack->GetPredChi2(m,sigmanew); | |
1215 | // cout<<" chi2pred = "<<chi2pred<<"\n"; | |
1216 | // if(chi2pred>fChi2max) continue; //aggiunto il 30-7-2001 | |
1217 | if(iriv == 0) flaghit=1; | |
1218 | (*newTrack).AddMS(frl); // add the multiple scattering | |
1219 | //matrix to the covariance matrix | |
1220 | (*newTrack).AddEL(frl,1.,0); | |
1221 | ||
b48af428 | 1222 | if(fflagvert){ |
1223 | KalmanFilterVert(newTrack,cluster,sigmanew); | |
1224 | //KalmanFilterVert(newTrack,cluster,sigmanew,chi2pred); | |
1225 | }else{ | |
1226 | KalmanFilter(newTrack,cluster,sigmanew); | |
1227 | } // end if | |
b48af428 | 1228 | (*newTrack).PutCluster(layernew, vecclust); |
1229 | newTrack->AddClustInTrack(); | |
1230 | listoftrack.AddLast(newTrack); | |
1231 | } // end for indnew | |
b48af428 | 1232 | } // end of for on detectors (iriv) |
1233 | }//end if(outinters==0) | |
1234 | ||
1235 | if(flaghit==0 || outinters==-2) { | |
1236 | AliITSTrackV1 *newTrack = new AliITSTrackV1(*trackITS); | |
1237 | (*newTrack).Setfnoclust(); | |
1238 | (*newTrack).SetLayer((*trackITS).GetLayer()-1); | |
1239 | (*newTrack).AddMS(frl); // add the multiple scattering matrix | |
1240 | // to the covariance matrix | |
1241 | (*newTrack).AddEL(frl,1.,0); | |
1242 | listoftrack.AddLast(newTrack); | |
1243 | } // end if | |
1244 | ||
1245 | //gObjectTable->Print(); // stampa memoria | |
04b80329 | 1246 | |
b48af428 | 1247 | RecursiveTracking(&listoftrack); |
1248 | listoftrack.Delete(); | |
1249 | } // end of for on tracks (index) | |
04b80329 | 1250 | |
b48af428 | 1251 | //gObjectTable->Print(); // stampa memoria |
13888096 | 1252 | } |
b48af428 | 1253 | //______________________________________________________________________ |
1254 | Int_t AliITSTrackerV1::Intersection(AliITSTrackV1 &track,Int_t layer, | |
1255 | Int_t &ladder,Int_t &detector) { | |
1256 | // Origin A. Badala' and G.S. Pappalardo | |
1257 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
1258 | // Found the intersection and the detector | |
1259 | ||
1260 | Double_t rk=fAvrad[layer-1]; | |
1261 | if(track.DoNotCross(rk)){ /*cout<< " Do not cross \n";*/ return -1;} | |
1262 | track.Propagation(rk); | |
1263 | Double_t zinters=track.GetZ(); | |
1264 | Double_t phinters=track.Getphi(); | |
1265 | //cout<<"zinters = "<<zinters<<" phinters = "<<phinters<<"\n"; | |
1266 | ||
1267 | TVector det(9); | |
1268 | TVector listDet(2); | |
1269 | TVector distZCenter(2); | |
1270 | ||
1271 | Int_t iz=0; | |
1272 | Int_t iD; | |
1273 | for(iD = 1; iD<= fNdet[layer-1]; iD++) { | |
1274 | if(zinters > fzmin[layer-1][iD-1] && zinters <= fzmax[layer-1][iD-1]) { | |
1275 | if(iz>1) { | |
1276 | cout<< " Errore su iz in Intersection \n"; | |
1277 | getchar(); | |
1278 | }else { | |
1279 | listDet(iz)= iD; distZCenter(iz)=TMath::Abs(zinters-det(2)); | |
1280 | iz++; | |
1281 | } // end if | |
1282 | } // end if | |
1283 | } // end for iD | |
1284 | ||
1285 | if(iz==0) {/* cout<< " No detector along Z \n";*/ return -2;} | |
1286 | detector=Int_t (listDet(0)); | |
1287 | if(iz>1 && (distZCenter(0)>distZCenter(1))) detector=Int_t (listDet(1)); | |
1288 | ||
1289 | TVector listLad(2); | |
1290 | TVector distPhiCenter(2); | |
1291 | Int_t ip=0; | |
1292 | Double_t pigre=TMath::Pi(); | |
1293 | Int_t iLd; | |
1294 | for(iLd = 1; iLd<= fNlad[layer-1]; iLd++) { | |
1295 | Double_t phimin=fphimin[layer-1][iLd-1]; | |
1296 | Double_t phimax=fphimax[layer-1][iLd-1]; | |
1297 | Double_t phidet=fphidet[layer-1][iLd-1]; | |
1298 | Double_t phiconfr=phinters; | |
1299 | if(phimin>phimax) { | |
1300 | //if(phimin <5.5) {cout<<" Error in Intersection for phi \n"; | |
1301 | // getchar();} | |
1302 | phimin-=(2.*pigre); | |
1303 | if(phinters>(1.5*pigre)) phiconfr=phinters-(2.*pigre); | |
1304 | if(phidet>(1.5*pigre)) phidet-=(2.*pigre); | |
1305 | } // end if | |
1306 | if(phiconfr>phimin && phiconfr<= phimax) { | |
1307 | if(ip>1) { | |
1308 | cout<< " Errore su ip in Intersection \n"; getchar(); | |
1309 | }else { | |
1310 | listLad(ip)= iLd; | |
1311 | distPhiCenter(ip)=TMath::Abs(phiconfr-phidet); ip++; | |
1312 | } // end if | |
1313 | } // end if | |
1314 | } // end for iLd | |
1315 | if(ip==0) { cout<< " No detector along phi \n"; getchar();} | |
1316 | ladder=Int_t (listLad(0)); | |
1317 | if(ip>1 && (distPhiCenter(0)>distPhiCenter(1))) ladder=Int_t (listLad(1)); | |
1318 | return 0; | |
1319 | } | |
1320 | //______________________________________________________________________ | |
1321 | void AliITSTrackerV1::KalmanFilter(AliITSTrackV1 *newTrack,TVector &cluster, | |
1322 | Double_t sigma[2]){ | |
1323 | //Origin A. Badala' and G.S. Pappalardo: | |
1324 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
1325 | // Kalman filter without vertex constraint | |
1326 | ////// Evaluation of the measurement vector //////////////////////// | |
1327 | Double_t m[2]; | |
1328 | Double_t rk,phik,zk; | |
1329 | rk=cluster(0); phik=cluster(1); zk=cluster(2); | |
1330 | m[0]=phik; m[1]=zk; | |
1331 | //////////////////////// Evaluation of the error matrix V ///////// | |
1332 | Double_t v00=sigma[0]; | |
1333 | Double_t v11=sigma[1]; | |
1334 | //////////////////////////////////////////////////////////////////// | |
1335 | Double_t cin00,cin10,cin20,cin30,cin40,cin11,cin21,cin31,cin41,cin22, | |
1336 | cin32,cin42,cin33,cin43,cin44; | |
1337 | ||
1338 | newTrack->GetCElements(cin00, | |
1339 | cin10,cin11, | |
1340 | cin20,cin21,cin22, | |
1341 | cin30,cin31,cin32,cin33, | |
1342 | cin40,cin41,cin42,cin43,cin44); //get C matrix | |
1343 | Double_t rold00=cin00+v00; | |
1344 | Double_t rold10=cin10; | |
1345 | Double_t rold11=cin11+v11; | |
1346 | ////////////////////// R matrix inversion ///////////////////////// | |
1347 | Double_t det=rold00*rold11-rold10*rold10; | |
1348 | Double_t r00=rold11/det; | |
1349 | Double_t r10=-rold10/det; | |
1350 | Double_t r11=rold00/det; | |
1351 | //////////////////////////////////////////////////////////////////// | |
1352 | Double_t k00=cin00*r00+cin10*r10; | |
1353 | Double_t k01=cin00*r10+cin10*r11; | |
1354 | Double_t k10=cin10*r00+cin11*r10; | |
1355 | Double_t k11=cin10*r10+cin11*r11; | |
1356 | Double_t k20=cin20*r00+cin21*r10; | |
1357 | Double_t k21=cin20*r10+cin21*r11; | |
1358 | Double_t k30=cin30*r00+cin31*r10; | |
1359 | Double_t k31=cin30*r10+cin31*r11; | |
1360 | Double_t k40=cin40*r00+cin41*r10; | |
1361 | Double_t k41=cin40*r10+cin41*r11; | |
1362 | Double_t x0,x1,x2,x3,x4; | |
1363 | newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector | |
1364 | Double_t savex0=x0, savex1=x1; | |
1365 | x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1); | |
1366 | x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1); | |
1367 | x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1); | |
1368 | x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1); | |
1369 | x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1); | |
1370 | Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44; | |
1371 | c00=cin00-k00*cin00-k01*cin10; | |
1372 | c10=cin10-k00*cin10-k01*cin11; | |
1373 | c20=cin20-k00*cin20-k01*cin21; | |
1374 | c30=cin30-k00*cin30-k01*cin31; | |
1375 | c40=cin40-k00*cin40-k01*cin41; | |
1376 | c11=cin11-k10*cin10-k11*cin11; | |
1377 | c21=cin21-k10*cin20-k11*cin21; | |
1378 | c31=cin31-k10*cin30-k11*cin31; | |
1379 | c41=cin41-k10*cin40-k11*cin41; | |
1380 | c22=cin22-k20*cin20-k21*cin21; | |
1381 | c32=cin32-k20*cin30-k21*cin31; | |
1382 | c42=cin42-k20*cin40-k21*cin41; | |
1383 | c33=cin33-k30*cin30-k31*cin31; | |
1384 | c43=cin43-k30*cin40-k31*cin41; | |
1385 | c44=cin44-k40*cin40-k41*cin41; | |
1386 | newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector | |
1387 | newTrack->PutCElements(c00, | |
1388 | c10,c11, | |
1389 | c20,c21,c22, | |
1390 | c30,c31,c32,c33, | |
1391 | c40,c41,c42,c43,c44); // put in track the | |
1392 | // new cov matrix | |
1393 | Double_t vmcold00=v00-c00; | |
1394 | Double_t vmcold10=-c10; | |
1395 | Double_t vmcold11=v11-c11; | |
1396 | ////////////////////// Matrix vmc inversion /////////////////////// | |
1397 | det=vmcold00*vmcold11-vmcold10*vmcold10; | |
1398 | Double_t vmc00=vmcold11/det; | |
1399 | Double_t vmc10=-vmcold10/det; | |
1400 | Double_t vmc11=vmcold00/det; | |
1401 | //////////////////////////////////////////////////////////////////// | |
1402 | Double_t chi2=(m[0]-x0)*( vmc00*(m[0]-x0) + 2.*vmc10*(m[1]-x1) ) + | |
1403 | (m[1]-x1)*vmc11*(m[1]-x1); | |
04b80329 | 1404 | newTrack->SetChi2(newTrack->GetChi2()+chi2); |
b48af428 | 1405 | } |
1406 | //---------------------------------------------------------------------- | |
1407 | //void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack, | |
1408 | // TVector &cluster,Double_t sigma[2]){ | |
1409 | void AliITSTrackerV1::KalmanFilterVert(AliITSTrackV1 *newTrack, | |
1410 | TVector &cluster,Double_t sigma[2] | |
1411 | /*, Double_t chi2pred*/){ | |
1412 | //Origin A. Badala' and G.S. Pappalardo: | |
1413 | // e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it | |
1414 | // Kalman filter with vertex constraint | |
1415 | ///////////////////// Evaluation of the measurement vector m //////// | |
1416 | Double_t m[4]; | |
1417 | Double_t rk,phik,zk; | |
1418 | rk=cluster(0); phik=cluster(1); zk=cluster(2); | |
1419 | m[0]=phik; m[1]=zk; | |
1420 | Double_t cc=(*newTrack).GetC(); | |
1421 | Double_t zv=(*newTrack).GetZv(); | |
1422 | Double_t dv=(*newTrack).GetDv(); | |
1423 | Double_t cy=cc/2.; | |
1424 | Double_t tgl= (zk-zv)*cy/TMath::ASin(cy*rk); | |
1425 | m[2]=dv; m[3]=tgl; | |
1426 | /////////////////////// Evaluation of the error matrix V ////////// | |
1427 | Int_t layer=newTrack->GetLayer(); | |
1428 | Double_t v00=sigma[0]; | |
1429 | Double_t v11=sigma[1]; | |
1430 | Double_t v31=sigma[1]/rk; | |
1431 | Double_t sigmaDv=newTrack->GetsigmaDv(); | |
1432 | Double_t v22=sigmaDv*sigmaDv + newTrack->Getd2(layer-1); | |
1433 | Double_t v32=newTrack->Getdtgl(layer-1); | |
1434 | Double_t sigmaZv=newTrack->GetsigmaZv(); | |
1435 | Double_t v33=(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+newTrack->Gettgl2(layer-1); | |
1436 | ////////////////////////////////////////////////////////////////// | |
1437 | Double_t cin00,cin10,cin11,cin20,cin21,cin22, | |
1438 | cin30,cin31,cin32,cin33,cin40,cin41,cin42,cin43,cin44; | |
1439 | newTrack->GetCElements(cin00, | |
1440 | cin10,cin11, | |
1441 | cin20,cin21,cin22, | |
1442 | cin30,cin31,cin32,cin33, | |
1443 | cin40,cin41,cin42,cin43,cin44); //get C matrix | |
1444 | Double_t r[4][4]; | |
1445 | r[0][0]=cin00+v00; | |
1446 | r[1][0]=cin10; | |
1447 | r[2][0]=cin20; | |
1448 | r[3][0]=cin30; | |
1449 | r[1][1]=cin11+v11; | |
1450 | r[2][1]=cin21; | |
1451 | r[3][1]=cin31+sigma[1]/rk; | |
1452 | r[2][2]=cin22+sigmaDv*sigmaDv+newTrack->Getd2(layer-1); | |
1453 | r[3][2]=cin32+newTrack->Getdtgl(layer-1); | |
1454 | r[3][3]=cin33+(sigma[1]+sigmaZv*sigmaZv)/(rk*rk)+ | |
1455 | newTrack->Gettgl2(layer-1); | |
1456 | r[0][1]=r[1][0]; r[0][2]=r[2][0]; r[0][3]=r[3][0]; | |
1457 | r[1][2]=r[2][1]; r[1][3]=r[3][1]; r[2][3]=r[3][2]; | |
1458 | ///////////////////// Matrix R inversion ////////////////////////// | |
1459 | const Int_t kn=4; | |
1460 | Double_t big, hold; | |
1461 | Double_t d=1.; | |
1462 | Int_t ll[kn],mm[kn]; | |
1463 | Int_t i,j,k; | |
1464 | ||
1465 | for(k=0; k<kn; k++) { | |
1466 | ll[k]=k; | |
1467 | mm[k]=k; | |
1468 | big=r[k][k]; | |
1469 | for(j=k; j<kn ; j++) { | |
1470 | for (i=j; i<kn; i++) { | |
1471 | if(TMath::Abs(big) < TMath::Abs(r[i][j]) ) { | |
1472 | big=r[i][j]; | |
1473 | ll[k]=i; | |
1474 | mm[k]=j; | |
1475 | } // end if | |
1476 | } // end for i | |
1477 | } // end for j | |
1478 | // | |
1479 | j= ll[k]; | |
1480 | if(j > k) { | |
1481 | for(i=0; i<kn; i++) { | |
1482 | hold=-r[k][i]; | |
1483 | r[k][i]=r[j][i]; | |
1484 | r[j][i]=hold; | |
1485 | } // end for i | |
1486 | }// end if | |
1487 | // | |
1488 | i=mm[k]; | |
1489 | if(i > k ) { | |
1490 | for(j=0; j<kn; j++) { | |
1491 | hold=-r[j][k]; | |
1492 | r[j][k]=r[j][i]; | |
1493 | r[j][i]=hold; | |
1494 | } // end for j | |
1495 | } // end if | |
1496 | // | |
1497 | if(!big) { | |
1498 | d=0.; | |
1499 | cout << "Singular matrix\n"; | |
1500 | } // end if | |
1501 | for(i=0; i<kn; i++) { | |
1502 | if(i == k) { continue; } | |
1503 | r[i][k]=r[i][k]/(-big); | |
1504 | } // end for i | |
1505 | // | |
1506 | for(i=0; i<kn; i++) { | |
1507 | hold=r[i][k]; | |
1508 | for(j=0; j<kn; j++) { | |
1509 | if(i == k || j == k) continue; | |
1510 | r[i][j]=hold*r[k][j]+r[i][j]; | |
1511 | } // end for j | |
1512 | } // end of ri | |
1513 | // | |
1514 | for(j=0; j<kn; j++) { | |
1515 | if(j == k) continue; | |
1516 | r[k][j]=r[k][j]/big; | |
1517 | } // end for j | |
1518 | // | |
1519 | d=d*big; | |
1520 | // | |
1521 | r[k][k]=1./big; | |
1522 | } // end for k | |
1523 | // | |
1524 | for(k=kn-1; k>=0; k--) { | |
1525 | i=ll[k]; | |
1526 | if(i > k) { | |
1527 | for (j=0; j<kn; j++) { | |
1528 | hold=r[j][k]; | |
1529 | r[j][k]=-r[j][i]; | |
1530 | r[j][i]=hold; | |
1531 | } // end for j | |
1532 | } // end if i | |
1533 | j=mm[k]; | |
1534 | if(j > k) { | |
1535 | for (i=0; i<kn; i++) { | |
1536 | hold=r[k][i]; | |
1537 | r[k][i]=-r[j][i]; | |
1538 | r[j][i]=hold; | |
1539 | } // end for i | |
1540 | } // end if | |
1541 | } // end for k | |
1542 | //////////////////////////////////////////////////////////////////// | |
1543 | Double_t k00=cin00*r[0][0]+cin10*r[1][0]+cin20*r[2][0]+cin30*r[3][0]; | |
1544 | Double_t k01=cin00*r[1][0]+cin10*r[1][1]+cin20*r[2][1]+cin30*r[3][1]; | |
1545 | Double_t k02=cin00*r[2][0]+cin10*r[2][1]+cin20*r[2][2]+cin30*r[3][2]; | |
1546 | Double_t k03=cin00*r[3][0]+cin10*r[3][1]+cin20*r[3][2]+cin30*r[3][3]; | |
1547 | Double_t k10=cin10*r[0][0]+cin11*r[1][0]+cin21*r[2][0]+cin31*r[3][0]; | |
1548 | Double_t k11=cin10*r[1][0]+cin11*r[1][1]+cin21*r[2][1]+cin31*r[3][1]; | |
1549 | Double_t k12=cin10*r[2][0]+cin11*r[2][1]+cin21*r[2][2]+cin31*r[3][2]; | |
1550 | Double_t k13=cin10*r[3][0]+cin11*r[3][1]+cin21*r[3][2]+cin31*r[3][3]; | |
1551 | Double_t k20=cin20*r[0][0]+cin21*r[1][0]+cin22*r[2][0]+cin32*r[3][0]; | |
1552 | Double_t k21=cin20*r[1][0]+cin21*r[1][1]+cin22*r[2][1]+cin32*r[3][1]; | |
1553 | Double_t k22=cin20*r[2][0]+cin21*r[2][1]+cin22*r[2][2]+cin32*r[3][2]; | |
1554 | Double_t k23=cin20*r[3][0]+cin21*r[3][1]+cin22*r[3][2]+cin32*r[3][3]; | |
1555 | Double_t k30=cin30*r[0][0]+cin31*r[1][0]+cin32*r[2][0]+cin33*r[3][0]; | |
1556 | Double_t k31=cin30*r[1][0]+cin31*r[1][1]+cin32*r[2][1]+cin33*r[3][1]; | |
1557 | Double_t k32=cin30*r[2][0]+cin31*r[2][1]+cin32*r[2][2]+cin33*r[3][2]; | |
1558 | Double_t k33=cin30*r[3][0]+cin31*r[3][1]+cin32*r[3][2]+cin33*r[3][3]; | |
1559 | Double_t k40=cin40*r[0][0]+cin41*r[1][0]+cin42*r[2][0]+cin43*r[3][0]; | |
1560 | Double_t k41=cin40*r[1][0]+cin41*r[1][1]+cin42*r[2][1]+cin43*r[3][1]; | |
1561 | Double_t k42=cin40*r[2][0]+cin41*r[2][1]+cin42*r[2][2]+cin43*r[3][2]; | |
1562 | Double_t k43=cin40*r[3][0]+cin41*r[3][1]+cin42*r[3][2]+cin43*r[3][3]; | |
1563 | ||
1564 | Double_t x0,x1,x2,x3,x4; | |
1565 | newTrack->GetXElements(x0,x1,x2,x3,x4); // get the state vector | |
1566 | Double_t savex0=x0, savex1=x1, savex2=x2, savex3=x3; | |
1567 | x0+=k00*(m[0]-savex0)+k01*(m[1]-savex1)+k02*(m[2]-savex2)+ | |
1568 | k03*(m[3]-savex3); | |
1569 | x1+=k10*(m[0]-savex0)+k11*(m[1]-savex1)+k12*(m[2]-savex2)+ | |
1570 | k13*(m[3]-savex3); | |
1571 | x2+=k20*(m[0]-savex0)+k21*(m[1]-savex1)+k22*(m[2]-savex2)+ | |
1572 | k23*(m[3]-savex3); | |
1573 | x3+=k30*(m[0]-savex0)+k31*(m[1]-savex1)+k32*(m[2]-savex2)+ | |
1574 | k33*(m[3]-savex3); | |
1575 | x4+=k40*(m[0]-savex0)+k41*(m[1]-savex1)+k42*(m[2]-savex2)+ | |
1576 | k43*(m[3]-savex3); | |
1577 | Double_t c00,c10,c20,c30,c40,c11,c21,c31,c41,c22,c32,c42,c33,c43,c44; | |
1578 | c00=cin00-k00*cin00-k01*cin10-k02*cin20-k03*cin30; | |
1579 | c10=cin10-k00*cin10-k01*cin11-k02*cin21-k03*cin31; | |
1580 | c20=cin20-k00*cin20-k01*cin21-k02*cin22-k03*cin32; | |
1581 | c30=cin30-k00*cin30-k01*cin31-k02*cin32-k03*cin33; | |
1582 | c40=cin40-k00*cin40-k01*cin41-k02*cin42-k03*cin43; | |
1583 | c11=cin11-k10*cin10-k11*cin11-k12*cin21-k13*cin31; | |
1584 | c21=cin21-k10*cin20-k11*cin21-k12*cin22-k13*cin32; | |
1585 | c31=cin31-k10*cin30-k11*cin31-k12*cin32-k13*cin33; | |
1586 | c41=cin41-k10*cin40-k11*cin41-k12*cin42-k13*cin43; | |
1587 | c22=cin22-k20*cin20-k21*cin21-k22*cin22-k23*cin32; | |
1588 | c32=cin32-k20*cin30-k21*cin31-k22*cin32-k23*cin33; | |
1589 | c42=cin42-k20*cin40-k21*cin41-k22*cin42-k23*cin43; | |
1590 | c33=cin33-k30*cin30-k31*cin31-k32*cin32-k33*cin33; | |
1591 | c43=cin43-k30*cin40-k31*cin41-k32*cin42-k33*cin43; | |
1592 | c44=cin44-k40*cin40-k41*cin41-k42*cin42-k43*cin43; | |
1593 | ||
1594 | newTrack->PutXElements(x0,x1,x2,x3,x4); // put the new state vector | |
1595 | newTrack->PutCElements(c00, | |
1596 | c10,c11, | |
1597 | c20,c21,c22, | |
1598 | c30,c31,c32,c33, | |
1599 | c40,c41,c42,c43,c44); // put in track the | |
1600 | // new cov matrix | |
1601 | Double_t vmc[4][4]; | |
1602 | vmc[0][0]=v00-c00; vmc[1][0]=-c10; vmc[2][0]=-c20; vmc[3][0]=-c30; | |
1603 | vmc[1][1]=v11-c11; vmc[2][1]=-c21; vmc[3][1]=v31-c31; | |
1604 | vmc[2][2]=v22-c22; vmc[3][2]=v32-c32; | |
1605 | vmc[3][3]=v33-c33; | |
1606 | vmc[0][1]=vmc[1][0]; vmc[0][2]=vmc[2][0]; vmc[0][3]=vmc[3][0]; | |
1607 | vmc[1][2]=vmc[2][1]; vmc[1][3]=vmc[3][1]; | |
1608 | vmc[2][3]=vmc[3][2]; | |
1609 | /////////////////////// vmc matrix inversion /////////////////////// | |
1610 | d=1.; | |
1611 | for(k=0; k<kn; k++) { | |
1612 | ll[k]=k; | |
1613 | mm[k]=k; | |
1614 | big=vmc[k][k]; | |
1615 | for(j=k; j<kn ; j++) { | |
1616 | for (i=j; i<kn; i++) { | |
1617 | if(TMath::Abs(big) < TMath::Abs(vmc[i][j]) ) { | |
1618 | big=vmc[i][j]; | |
1619 | ll[k]=i; | |
1620 | mm[k]=j; | |
1621 | } // end if | |
1622 | } // end for i | |
1623 | } // end for j | |
1624 | // | |
1625 | j= ll[k]; | |
1626 | if(j > k) { | |
1627 | for(i=0; i<kn; i++) { | |
1628 | hold=-vmc[k][i]; | |
1629 | vmc[k][i]=vmc[j][i]; | |
1630 | vmc[j][i]=hold; | |
1631 | } // end for i | |
1632 | } // end if | |
1633 | // | |
1634 | i=mm[k]; | |
1635 | if(i > k ) { | |
1636 | for(j=0; j<kn; j++) { | |
1637 | hold=-vmc[j][k]; | |
1638 | vmc[j][k]=vmc[j][i]; | |
1639 | vmc[j][i]=hold; | |
1640 | } // end for j | |
1641 | } // end if | |
1642 | // | |
1643 | if(!big) { | |
1644 | d=0.; | |
1645 | cout << "Singular matrix\n"; | |
1646 | } // end if | |
1647 | for(i=0; i<kn; i++) { | |
1648 | if(i == k) continue; | |
1649 | vmc[i][k]=vmc[i][k]/(-big); | |
1650 | } // end for i | |
1651 | // | |
1652 | for(i=0; i<kn; i++) { | |
1653 | hold=vmc[i][k]; | |
1654 | for(j=0; j<kn; j++) { | |
1655 | if(i == k || j == k) continue; | |
1656 | vmc[i][j]=hold*vmc[k][j]+vmc[i][j]; | |
1657 | } // end for j | |
1658 | } // end for i | |
1659 | // | |
1660 | for(j=0; j<kn; j++) { | |
1661 | if(j == k) continue; | |
1662 | vmc[k][j]=vmc[k][j]/big; | |
1663 | } // end for j | |
1664 | // | |
1665 | d=d*big; | |
1666 | // | |
1667 | vmc[k][k]=1./big; | |
1668 | } // end for k | |
1669 | // | |
1670 | for(k=kn-1; k>=0; k--) { | |
1671 | i=ll[k]; | |
1672 | if(i > k) { | |
1673 | for (j=0; j<kn; j++) { | |
1674 | hold=vmc[j][k]; | |
1675 | vmc[j][k]=-vmc[j][i]; | |
1676 | vmc[j][i]=hold; | |
1677 | } // end for j | |
1678 | } // end if i>k | |
1679 | j=mm[k]; | |
1680 | if(j > k) { | |
1681 | for (i=0; i<kn; i++) { | |
1682 | hold=vmc[k][i]; | |
1683 | vmc[k][i]=-vmc[j][i]; | |
1684 | vmc[j][i]=hold; | |
1685 | } // end for i | |
1686 | } // end if j>k | |
1687 | } // end for k | |
1688 | //////////////////////////////////////////////////////////////////// | |
1689 | Double_t chi2=(m[0]-x0)*( vmc[0][0]*(m[0]-x0) + 2.*vmc[1][0]*(m[1]-x1) + | |
1690 | 2.*vmc[2][0]*(m[2]-x2)+ 2.*vmc[3][0]*(m[3]-x3) )+ | |
1691 | (m[1]-x1)* ( vmc[1][1]*(m[1]-x1) + 2.*vmc[2][1]*(m[2]-x2)+ | |
1692 | 2.*vmc[3][1]*(m[3]-x3) ) + | |
1693 | (m[2]-x2)* ( vmc[2][2]*(m[2]-x2)+ 2.*vmc[3][2]*(m[3]-x3) ) + | |
1694 | (m[3]-x3)*vmc[3][3]*(m[3]-x3); | |
1695 | //cout<<" chi2 kalman = "<<chi2<<"\n"; getchar(); | |
1696 | newTrack->SetChi2(newTrack->GetChi2()+chi2); | |
1697 | // newTrack->SetChi2(newTrack->GetChi2()+chi2pred); | |
1698 | } |