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b0f5e3fc | 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 | ||
18 | Adding rekonstruction facilities | |
19 | Piotr Krzysztof Skowronski | |
20 | December 1999. | |
21 | */ | |
22 | ||
23 | /* | |
24 | 15 -18 V 2000 | |
25 | Eroor counting routines | |
26 | Automatic combination routines improved (traps) | |
27 | ||
28 | */ | |
29 | ||
30 | #include "AliRun.h" | |
31 | #include "AliITSClusterFinderSSD.h" | |
32 | ||
33 | ||
34 | const Int_t debug=0; | |
35 | ||
36 | ClassImp(AliITSClusterFinderSSD) | |
37 | ||
38 | //____________________________________________________________________ | |
39 | // | |
40 | // Constructor | |
41 | //____________________________________________________________________ | |
42 | // | |
43 | ||
44 | ||
45 | AliITSClusterFinderSSD::AliITSClusterFinderSSD(AliITSsegmentation *seg, TClonesArray *digits, TClonesArray *recp) | |
46 | { | |
47 | ||
48 | fSegmentation=seg; | |
49 | fDigits=digits; | |
50 | fRecPoints=recp; | |
51 | ||
52 | fITS=(AliITS*)gAlice->GetModule("ITS"); | |
53 | ||
54 | fClusterP = new TClonesArray ("AliITSclusterSSD",200); | |
55 | fNClusterP =0; | |
56 | ||
57 | fClusterN= new TClonesArray ("AliITSclusterSSD",200); | |
58 | fNClusterN =0; | |
59 | ||
60 | fPackages = new TClonesArray ("AliITSpackageSSD",200); //packages | |
61 | fNPackages = 0; | |
62 | ||
63 | ||
64 | fDigitsIndexP = new TArrayI(300); | |
65 | fNDigitsP = 0; | |
66 | ||
67 | fDigitsIndexN = new TArrayI(300); | |
68 | fNDigitsN = 0; | |
69 | ||
70 | SetAlpha1(1000); | |
71 | SetAlpha2(1000); | |
72 | SetAlpha3(1000); | |
73 | ||
74 | ||
75 | fPitch = fSegmentation->Dpx(0); | |
76 | Float_t StereoP,StereoN; | |
77 | fSegmentation->Angles(StereoP,StereoN); | |
78 | fTanP=TMath::Tan(StereoP); | |
79 | fTanN=TMath::Tan(StereoN); | |
be33dccb | 80 | fPNsignalRatio=7./8.; // warning: hard-wired number |
b0f5e3fc | 81 | } |
82 | ||
83 | //------------------------------------------------------- | |
84 | AliITSClusterFinderSSD::~AliITSClusterFinderSSD() { | |
85 | ||
86 | delete fClusterP; | |
87 | delete fClusterN; | |
88 | delete fPackages; | |
89 | delete fDigitsIndexP; | |
90 | delete fDigitsIndexN; | |
91 | } | |
92 | ||
93 | //------------------------------------------------------- | |
94 | void AliITSClusterFinderSSD::InitReconstruction() | |
95 | { | |
96 | ||
97 | register Int_t i; //iterator | |
98 | ||
99 | for(i=0;i<fNClusterP;i++) | |
100 | { | |
101 | fClusterP->RemoveAt(i); | |
102 | } | |
103 | fNClusterP =0; | |
104 | for(i=0;i<fNClusterN;i++) | |
105 | { | |
106 | fClusterN->RemoveAt(i); | |
107 | } | |
108 | fNClusterN=0; | |
109 | ||
110 | for(i=0;i<fNPackages;i++) | |
111 | { | |
112 | fPackages->RemoveAt(i); | |
113 | } | |
114 | ||
115 | fNPackages = 0; | |
116 | fNDigitsP=0; | |
117 | fNDigitsN=0; | |
118 | ||
119 | Float_t StereoP,StereoN; | |
120 | fSegmentation->Angles(StereoP,StereoN); | |
121 | ||
122 | CalcStepFactor (StereoP,StereoN); | |
123 | ||
124 | if (debug) cout<<"fSFF = "<<fSFF<<" fSFB = "<<fSFB<<"\n"; | |
125 | } | |
126 | ||
127 | ||
128 | //--------------------------------------------- | |
129 | void AliITSClusterFinderSSD::FindRawClusters() | |
130 | { | |
131 | ||
132 | ||
133 | ||
134 | //Piotr Krzysztof Skowronski | |
135 | //Warsaw University of Technology | |
136 | //skowron@if.pw.edu.pl | |
137 | ||
138 | // This function findes out all clusters belonging to one module | |
139 | // 1. Zeroes all space after previous module reconstruction | |
140 | // 2. Finds all neighbouring digits | |
141 | // 3. If necesery, resolves for each group of neighbouring digits | |
142 | // how many clusters creates it. | |
143 | // 4. Creates packages | |
144 | // 5. Creates clusters | |
145 | ||
146 | InitReconstruction(); //ad. 1 | |
147 | FillDigitsIndex(); | |
148 | SortDigits(); | |
149 | FindNeighbouringDigits(); //ad. 2 | |
150 | SeparateOverlappedClusters(); //ad. 3 | |
151 | ClustersToPackages(); //ad. 4 | |
152 | ConsumeClusters(); | |
153 | PackagesToPoints(); //ad. 5 | |
154 | ReconstructNotConsumedClusters(); | |
155 | ||
156 | } | |
157 | ||
158 | ||
159 | //------------------------------------------------- | |
160 | void AliITSClusterFinderSSD::FindNeighbouringDigits() | |
161 | { | |
162 | ||
163 | ||
164 | //Piotr Krzysztof Skowronski | |
165 | //Warsaw University of Technology | |
166 | //skowron@if.pw.edu.pl | |
167 | ||
168 | register Int_t i; | |
169 | ||
170 | //If there are any digits on this side, create 1st Cluster, | |
171 | // add to it this digit, and increment number of clusters | |
172 | ||
173 | if ((fNDigitsP>0 ) && (fNDigitsN > 0 )) { | |
174 | ||
175 | Int_t currentstripNo; | |
176 | Int_t *dbuffer = new Int_t [300]; //buffer for strip numbers | |
177 | Int_t dnumber; //curent number of digits in buffer | |
178 | TArrayI &lDigitsIndexP = *fDigitsIndexP; | |
179 | TArrayI &lDigitsIndexN = *fDigitsIndexN; | |
180 | TObjArray &lDigits=*fDigits; | |
181 | TClonesArray &lClusterP = *fClusterP; | |
182 | TClonesArray &lClusterN = *fClusterN; | |
183 | ||
184 | //process P side | |
185 | dnumber = 1; | |
186 | dbuffer[0]=lDigitsIndexP[0]; | |
187 | //If next digit is a neighbour of previous, adds to last cluster this digit | |
188 | for(i=1; i<fNDigitsP; i++) { | |
189 | //reads new digit | |
190 | currentstripNo = ((AliITSdigitSSD*)lDigits[lDigitsIndexP[i]])-> | |
191 | GetStripNumber(); | |
192 | //check if it is a neighbour of a previous one | |
193 | if ( (((AliITSdigitSSD*)lDigits[lDigitsIndexP[i-1]])->GetStripNumber()) | |
194 | == (currentstripNo-1) ) dbuffer[dnumber++]=lDigitsIndexP[i]; | |
195 | else { | |
196 | //create a new one side cluster | |
197 | new(lClusterP[fNClusterP++]) AliITSclusterSSD(dnumber,dbuffer,fDigits,SIDEP); | |
198 | dbuffer[0]=lDigitsIndexP[i]; | |
199 | dnumber = 1; | |
200 | } | |
201 | } // end loop over fNDigitsP | |
202 | new(lClusterP[fNClusterP++]) AliITSclusterSSD(dnumber,dbuffer,fDigits,SIDEP); | |
203 | ||
204 | ||
205 | //process N side | |
206 | //for comments, see above | |
207 | dnumber = 1; | |
208 | dbuffer[0]=lDigitsIndexN[0]; | |
209 | //If next digit is a neighbour of previous, adds to last cluster this digit | |
210 | for(i=1; i<fNDigitsN; i++) { | |
211 | currentstripNo = ((AliITSdigitSSD*)(lDigits[lDigitsIndexN[i]]))-> | |
212 | GetStripNumber(); | |
213 | if ( (((AliITSdigitSSD*)lDigits[lDigitsIndexN[i-1]])->GetStripNumber()) | |
214 | == (currentstripNo-1) ) dbuffer[dnumber++]=lDigitsIndexN[i]; | |
215 | else { | |
216 | new(lClusterN[fNClusterN++]) AliITSclusterSSD(dnumber,dbuffer,fDigits,SIDEN); | |
217 | dbuffer[0]=lDigitsIndexN[i]; | |
218 | dnumber = 1; | |
219 | } | |
220 | } // end loop over fNDigitsN | |
221 | new(lClusterN[fNClusterN++]) AliITSclusterSSD(dnumber,dbuffer,fDigits,SIDEN); | |
222 | delete [] dbuffer; | |
223 | ||
224 | } // end condition on NDigits | |
225 | ||
226 | if (debug) cout<<"\n Found clusters: fNClusterP = "<<fNClusterP<<" fNClusterN ="<<fNClusterN<<"\n"; | |
227 | ||
228 | } | |
229 | /**********************************************************************/ | |
230 | ||
231 | ||
232 | void AliITSClusterFinderSSD::SeparateOverlappedClusters() | |
233 | { | |
234 | //************************************************ | |
235 | //Piotr Krzysztof Skowronski | |
236 | //Warsaw University of Technology | |
237 | //skowron@if.pw.edu.pl | |
238 | ||
239 | register Int_t i,j; //iterator | |
240 | ||
241 | Float_t factor=0.75; // How many percent must be lower signal | |
242 | // on the middle one digit | |
243 | // from its neighbours | |
244 | Int_t signal0; //signal on the strip before the current one | |
245 | Int_t signal1; //signal on the current one signal | |
246 | Int_t signal2; //signal on the strip after the current one | |
247 | TArrayI *splitlist; // List of splits | |
248 | Int_t numerofsplits=0; // number of splits | |
249 | Int_t initPsize = fNClusterP; //initial size of the arrays | |
250 | Int_t initNsize = fNClusterN; //we have to keep it because it will grow | |
251 | // in this function and it doasn't make | |
252 | // sense to pass through it again | |
253 | ||
254 | splitlist = new TArrayI(300); | |
255 | ||
256 | for(i=0;i<initPsize;i++) | |
257 | { | |
258 | if (( ((AliITSclusterSSD*)(*fClusterP)[i])->GetNumOfDigits())==1) continue; | |
259 | if (( ((AliITSclusterSSD*)(*fClusterP)[i])->GetNumOfDigits())==2) continue; | |
260 | Int_t nj=(((AliITSclusterSSD*)(*fClusterP)[i])->GetNumOfDigits()-1); | |
261 | for(j=1; j<nj; j++) | |
262 | { | |
263 | signal1=((AliITSclusterSSD*)(*fClusterP)[i])->GetDigitSignal(j); | |
264 | signal0=((AliITSclusterSSD*)(*fClusterP)[i])->GetDigitSignal(j-1); | |
265 | signal2=((AliITSclusterSSD*)(*fClusterP)[i])->GetDigitSignal(j+1); | |
266 | //if signal is less then factor*signal of its neighbours | |
267 | if ( (signal1<(factor*signal0)) && (signal1<(factor*signal2)) ) | |
268 | { | |
269 | (*splitlist)[numerofsplits++]=j; | |
270 | } | |
271 | } // end loop over number of digits | |
272 | //split this cluster if necessary | |
273 | if(numerofsplits>0) SplitCluster(splitlist,numerofsplits,i,SIDEP); | |
274 | numerofsplits=0; | |
275 | ||
276 | //in signed places (splitlist) | |
277 | } // end loop over clusters on Pside | |
278 | ||
279 | for(i=0;i<initNsize;i++) { | |
280 | if (( ((AliITSclusterSSD*)(*fClusterN)[i])->GetNumOfDigits())==1) continue; | |
281 | if (( ((AliITSclusterSSD*)(*fClusterN)[i])->GetNumOfDigits())==2) continue; | |
282 | Int_t nj=(((AliITSclusterSSD*)(*fClusterN)[i])->GetNumOfDigits()-1); | |
283 | for(j=1; j<nj; j++) | |
284 | { | |
285 | signal1=((AliITSclusterSSD*)(*fClusterN)[i])->GetDigitSignal(j); | |
286 | signal0=((AliITSclusterSSD*)(*fClusterN)[i])->GetDigitSignal(j-1); | |
287 | signal2=((AliITSclusterSSD*)(*fClusterN)[i])->GetDigitSignal(j+1); | |
288 | //if signal is less then factor*signal of its neighbours | |
289 | if ( (signal1<(factor*signal0)) && (signal1<(factor*signal2)) ) | |
290 | (*splitlist)[numerofsplits++]=j; | |
291 | } // end loop over number of digits | |
292 | //split this cluster into more clusters | |
293 | if(numerofsplits>0) SplitCluster(splitlist,numerofsplits,i,SIDEN); | |
294 | numerofsplits=0; //in signed places (splitlist) | |
295 | } // end loop over clusters on Nside | |
296 | ||
297 | delete splitlist; | |
298 | } | |
299 | ||
300 | //------------------------------------------------------- | |
301 | void AliITSClusterFinderSSD::SplitCluster(TArrayI *list, Int_t nsplits, Int_t index, Bool_t side) | |
302 | { | |
303 | ||
304 | ||
305 | //Piotr Krzysztof Skowronski | |
306 | //Warsaw University of Technology | |
307 | //skowron@if.pw.edu.pl | |
308 | ||
309 | //This function splits one side cluster into more clusters | |
310 | //number of splits is defined by "nsplits" | |
311 | //Place of splits are defined in the TArray "list" | |
312 | ||
313 | // For further optimisation: Replace this function by two | |
314 | // specialised ones (each for one side) | |
315 | // save one "if" | |
316 | ||
317 | //For comlete comments see AliITSclusterSSD::SplitCluster | |
318 | ||
319 | ||
320 | register Int_t i; //iterator | |
321 | ||
322 | AliITSclusterSSD* curentcluster; | |
323 | Int_t *tmpdigits = new Int_t[100]; | |
324 | Int_t NN; | |
325 | // side true means P side | |
326 | if (side) { | |
327 | curentcluster =((AliITSclusterSSD*)((*fClusterP)[index])) ; | |
328 | for(i = nsplits; i>0 ;i--) { | |
329 | NN=curentcluster->SplitCluster((*list)[(i-1)],tmpdigits); | |
330 | new ((*fClusterP)[fNClusterP]) AliITSclusterSSD(NN,tmpdigits,fDigits,side); | |
331 | ( (AliITSclusterSSD*)((*fClusterP)[fNClusterP]) )-> | |
332 | SetLeftNeighbour(kTRUE); | |
333 | //if left cluster had neighbour on the right before split | |
334 | //new should have it too | |
335 | if ( curentcluster->GetRightNeighbour() ) | |
336 | ( (AliITSclusterSSD*)((*fClusterP)[fNClusterP]) )-> | |
337 | SetRightNeighbour(kTRUE); | |
338 | else curentcluster->SetRightNeighbour(kTRUE); | |
339 | fNClusterP++; | |
340 | } // end loop over nplits | |
341 | } else { | |
342 | curentcluster =((AliITSclusterSSD*)((*fClusterN)[index])); | |
343 | for(i = nsplits; i>0 ;i--) { | |
344 | NN=curentcluster->SplitCluster((*list)[(i-1)],tmpdigits); | |
345 | new ((*fClusterN)[fNClusterN]) AliITSclusterSSD(NN,tmpdigits,fDigits,side); | |
346 | ((AliITSclusterSSD*)((*fClusterN)[fNClusterN]))-> | |
347 | SetRightNeighbour(kTRUE); | |
348 | if (curentcluster->GetRightNeighbour()) | |
349 | ( (AliITSclusterSSD*)( (*fClusterN)[fNClusterN]) )-> | |
350 | SetRightNeighbour(kTRUE); | |
351 | else curentcluster->SetRightNeighbour(kTRUE); | |
352 | fNClusterN++; | |
353 | } // end loop over nplits | |
354 | } // end if side | |
355 | delete []tmpdigits; | |
356 | ||
357 | } | |
358 | ||
359 | ||
360 | //------------------------------------------------- | |
361 | Int_t AliITSClusterFinderSSD::SortDigitsP(Int_t start, Int_t end) | |
362 | { | |
363 | ||
364 | ||
365 | //Piotr Krzysztof Skowronski | |
366 | //Warsaw University of Technology | |
367 | //skowron@if.pw.edu.pl | |
368 | ||
369 | Int_t right; | |
370 | Int_t left; | |
371 | if (start != (end - 1) ) | |
372 | { | |
373 | left=this->SortDigitsP(start,(start+end)/2); | |
374 | right=this->SortDigitsP((start+end)/2,end); | |
375 | return (left || right); | |
376 | } | |
377 | else | |
378 | { | |
379 | left = ((AliITSdigitSSD*)((*fDigits)[(*fDigitsIndexP)[start]]))->GetStripNumber(); | |
380 | right= ((AliITSdigitSSD*)((*fDigits)[(*fDigitsIndexP)[end]]))->GetStripNumber(); | |
381 | if( left > right ) | |
382 | { | |
383 | Int_t tmp = (*fDigitsIndexP)[start]; | |
384 | (*fDigitsIndexP)[start]=(*fDigitsIndexP)[end]; | |
385 | (*fDigitsIndexP)[end]=tmp; | |
386 | return 1; | |
387 | } | |
388 | else return 0; | |
389 | } | |
390 | } | |
391 | ||
392 | ||
393 | //-------------------------------------------------- | |
394 | ||
395 | Int_t AliITSClusterFinderSSD::SortDigitsN(Int_t start, Int_t end) | |
396 | { | |
397 | ||
398 | ||
399 | //Piotr Krzysztof Skowronski | |
400 | //Warsaw University of Technology | |
401 | //skowron@if.pw.edu.pl | |
402 | ||
403 | Int_t right; | |
404 | Int_t left; | |
405 | if (start != (end - 1)) | |
406 | { | |
407 | left=this->SortDigitsN(start,(start+end)/2); | |
408 | right=this->SortDigitsN((start+end)/2,end); | |
409 | return (left || right); | |
410 | } | |
411 | else | |
412 | { | |
413 | left =((AliITSdigitSSD*)((*fDigits)[(*fDigitsIndexN)[start]]))->GetStripNumber(); | |
414 | right=((AliITSdigitSSD*)((*fDigits)[(*fDigitsIndexN)[end]]))->GetStripNumber(); | |
415 | if ( left > right ) | |
416 | { | |
417 | Int_t tmp = (*fDigitsIndexN)[start]; | |
418 | (*fDigitsIndexN)[start]=(*fDigitsIndexN)[end]; | |
419 | (*fDigitsIndexN)[end]=tmp; | |
420 | return 1; | |
421 | }else return 0; | |
422 | } | |
423 | } | |
424 | ||
425 | ||
426 | //------------------------------------------------ | |
427 | void AliITSClusterFinderSSD::FillDigitsIndex() | |
428 | { | |
429 | ||
430 | ||
431 | //Piotr Krzysztof Skowronski | |
432 | //Warsaw University of Technology | |
433 | //skowron@if.pw.edu.pl | |
434 | ||
435 | //Fill the indexes of the clusters belonging to a given ITS module | |
436 | //Created by Piotr K. Skowronski, August 7 1999 | |
437 | ||
438 | Int_t PNs=0, NNs=0; | |
439 | Int_t tmp,bit,k; | |
440 | Int_t N; | |
441 | Int_t i; | |
442 | ||
443 | N = fDigits->GetEntriesFast(); | |
444 | ||
445 | Int_t* PSidx = new Int_t [N*sizeof(Int_t)]; | |
446 | Int_t* NSidx = new Int_t [N*sizeof(Int_t)]; | |
447 | if (fDigitsIndexP==NULL) fDigitsIndexP = new TArrayI(N); | |
448 | if (fDigitsIndexN==NULL) fDigitsIndexN = new TArrayI(N); | |
449 | ||
450 | AliITSdigitSSD *dig; | |
451 | ||
452 | for(i = 0 ; i< N; i++ ) { | |
453 | dig=(AliITSdigitSSD*)fDigits->UncheckedAt(i); | |
454 | if(dig->IsSideP()) { | |
455 | bit=1; | |
456 | tmp=dig->GetStripNumber(); | |
457 | // I find this totally unnecessary - it's just a | |
458 | // CPU consuming double check | |
459 | for(k=0;k<PNs;k++) | |
460 | { | |
461 | if (tmp==PSidx[k]) | |
462 | { | |
463 | if (debug) cout<<"Such a digit exists \n"; | |
464 | bit=0; | |
465 | } | |
466 | } | |
467 | // end comment | |
468 | if(bit) { | |
469 | fDigitsIndexP->AddAt(i,fNDigitsP++); | |
470 | PSidx[PNs++]=tmp; | |
471 | } | |
472 | } else { | |
473 | bit=1; | |
474 | tmp=dig->GetStripNumber(); | |
475 | // same as above | |
476 | for(k=0;k<NNs;k++) | |
477 | { | |
478 | if (tmp==NSidx[k]) | |
479 | { | |
480 | if (debug) cout<<"Such a digit exists \n"; | |
481 | bit=0; | |
482 | } | |
483 | } | |
484 | // end comment | |
485 | if (bit) { | |
486 | fDigitsIndexN->AddAt(i,fNDigitsN++); | |
487 | NSidx[NNs++] =tmp; | |
488 | } | |
489 | } | |
490 | } | |
491 | ||
492 | ||
493 | if (debug) cout<<"Digits : P = "<<fNDigitsP<<" N = "<<fNDigitsN<<endl; | |
494 | ||
495 | } | |
496 | ||
497 | ||
498 | //------------------------------------------- | |
499 | ||
500 | void AliITSClusterFinderSSD::SortDigits() | |
501 | { | |
502 | ||
503 | ||
504 | //Piotr Krzysztof Skowronski | |
505 | //Warsaw University of Technology | |
506 | //skowron@if.pw.edu.pl | |
507 | ||
508 | ||
509 | ||
510 | Int_t i; | |
511 | if(fNDigitsP>1) | |
512 | for(i=0;i<fNDigitsP-1;i++) | |
513 | if (SortDigitsP(0,(fNDigitsP-1-i))==0) break; | |
514 | ||
515 | if(fNDigitsN>1) | |
516 | for(i=0;i<fNDigitsN-1;i++) | |
517 | if(SortDigitsN(0,(fNDigitsN-1-i))==0) break; | |
518 | } | |
519 | ||
520 | ||
521 | ||
522 | //---------------------------------------------- | |
523 | void AliITSClusterFinderSSD::FillClIndexArrays(Int_t* arrayP, Int_t *arrayN) | |
524 | { | |
525 | ||
526 | ||
527 | //Piotr Krzysztof Skowronski | |
528 | //Warsaw University of Technology | |
529 | //skowron@if.pw.edu.pl | |
530 | ||
531 | ||
532 | register Int_t i; | |
533 | for(i=0; i<fNClusterP;i++) | |
534 | { | |
535 | arrayP[i]=i; | |
536 | } | |
537 | for(i=0; i<fNClusterN;i++) | |
538 | { | |
539 | arrayN[i]=i; | |
540 | } | |
541 | } | |
542 | ||
543 | ||
544 | //------------------------------------------------------ | |
545 | void AliITSClusterFinderSSD::SortClusters(Int_t* arrayP, Int_t *arrayN) | |
546 | { | |
547 | ||
548 | ||
549 | //Piotr Krzysztof Skowronski | |
550 | //Warsaw University of Technology | |
551 | //skowron@if.pw.edu.pl | |
552 | ||
553 | ||
554 | Int_t i; | |
555 | if(fNClusterP>1) | |
556 | for(i=0;i<fNClusterP-1;i++) | |
557 | if (SortClustersP(0,(fNClusterP-1),arrayP)==0) break; | |
558 | ||
559 | ||
560 | if(fNClusterN>1) | |
561 | for(i=0;i<fNClusterN-1;i++) | |
562 | if (SortClustersN(0,(fNClusterN-1),arrayN)==0) break; | |
563 | ||
564 | } | |
565 | ||
566 | ||
567 | ||
568 | //--------------------------------------------------- | |
569 | Int_t AliITSClusterFinderSSD::SortClustersP(Int_t start, Int_t end, Int_t *array) | |
570 | { | |
571 | ||
572 | ||
573 | //Piotr Krzysztof Skowronski | |
574 | //Warsaw University of Technology | |
575 | //skowron@if.pw.edu.pl | |
576 | ||
577 | ||
578 | ||
579 | Int_t right; | |
580 | Int_t left; | |
581 | if (start != (end - 1) ) { | |
582 | left=this->SortClustersP(start,(start+end)/2,array); | |
583 | right=this->SortClustersP((start+end)/2,end,array); | |
584 | return (left || right); | |
585 | } else { | |
586 | left =((AliITSclusterSSD*)((*fClusterP)[array[start]]))-> | |
587 | GetDigitStripNo(0); | |
588 | right=((AliITSclusterSSD*)((*fClusterP)[array[ end ]]))-> | |
589 | GetDigitStripNo(0); | |
590 | if(left>right) { | |
591 | Int_t tmp = array[start]; | |
592 | array[start]=array[end]; | |
593 | array[end]=tmp; | |
594 | return 1; | |
595 | } else return 0; | |
596 | } | |
597 | ||
598 | ||
599 | } | |
600 | ||
601 | ||
602 | ||
603 | //------------------------------------------------------- | |
604 | Int_t AliITSClusterFinderSSD::SortClustersN(Int_t start, Int_t end, Int_t *array) | |
605 | { | |
606 | ||
607 | ||
608 | //Piotr Krzysztof Skowronski | |
609 | //Warsaw University of Technology | |
610 | //skowron@if.pw.edu.pl | |
611 | ||
612 | Int_t right; | |
613 | Int_t left; | |
614 | ||
615 | if (start != (end - 1) ) { | |
616 | left=this->SortClustersN(start,(start+end)/2,array); | |
617 | right=this->SortClustersN((start+end)/2,end,array); | |
618 | return (left || right); | |
619 | } else { | |
620 | left =((AliITSclusterSSD*)((*fClusterN)[array[start]]))-> | |
621 | GetDigitStripNo(0); | |
622 | right=((AliITSclusterSSD*)((*fClusterN)[array[ end ]]))-> | |
623 | GetDigitStripNo(0); | |
624 | if( left > right) { | |
625 | Int_t tmp = array[start]; | |
626 | array[start]=array[end]; | |
627 | array[end]=tmp; | |
628 | return 1; | |
629 | } else return 0; | |
630 | } | |
631 | ||
632 | } | |
633 | ||
634 | ||
635 | ||
636 | //------------------------------------------------------- | |
637 | void AliITSClusterFinderSSD::ClustersToPackages() | |
638 | { | |
639 | ||
640 | ||
641 | ||
642 | //Piotr Krzysztof Skowronski | |
643 | //Warsaw University of Technology | |
644 | //skowron@if.pw.edu.pl | |
645 | ||
646 | ||
647 | Int_t *oneSclP = new Int_t[fNClusterP]; //I want to have sorted 1 S clusters | |
648 | Int_t *oneSclN = new Int_t[fNClusterN]; //I can not sort it in TClonesArray | |
649 | //so, I create table of indexes and | |
650 | //sort it | |
651 | //I do not use TArrayI on purpose | |
652 | // MB: well, that's not true that one | |
653 | //cannot sort objects in TClonesArray | |
654 | ||
655 | Int_t i,k; //iterator | |
656 | AliITSpackageSSD *currentpkg; | |
657 | AliITSclusterSSD *currentP; | |
658 | AliITSclusterSSD *currentN; | |
659 | AliITSclusterSSD *fcurrN; | |
660 | ||
661 | Int_t lastNclIndex=0; //index of last N sidecluster | |
662 | Int_t Nclpack=0; //number of P clusters in current package | |
663 | Int_t Pclpack=0; //number of N clusters in current package | |
664 | Int_t firstStripP; | |
665 | Int_t lastStripP; | |
666 | Int_t firstStripN; | |
667 | Int_t lastStripN; | |
668 | Int_t tmplastNclIndex; | |
669 | ||
670 | //Fills in One Side Clusters Index Array | |
671 | FillClIndexArrays(oneSclP,oneSclN); | |
672 | //Sorts filled Arrays | |
673 | SortClusters(oneSclP,oneSclN); | |
674 | ||
675 | ||
676 | fNPackages=1; | |
677 | new ((*fPackages)[0]) AliITSpackageSSD(fClusterP,fClusterN); | |
678 | currentpkg = (AliITSpackageSSD*)((*fPackages)[0]); | |
679 | ||
680 | //main loop on sorted P side clusters | |
681 | for(i=0;i<fNClusterP;i++) { | |
682 | //Take new P side cluster | |
683 | currentP = GetPSideCluster(oneSclP[i]); | |
684 | currentN = GetNSideCluster(oneSclN[lastNclIndex]); | |
685 | // take a new P cluster or not ? | |
686 | if(IsCrossing(currentP,currentN)) { | |
687 | // don't take a new P cluster | |
688 | Pclpack++; | |
689 | currentP->AddCross(oneSclN[lastNclIndex]); | |
690 | currentN->AddCross(oneSclP[i]); | |
691 | currentpkg->AddPSideCluster(oneSclP[i]); | |
692 | if (Nclpack==0) { | |
693 | currentpkg->AddNSideCluster(oneSclN[lastNclIndex]); | |
694 | Nclpack++; | |
695 | } | |
696 | //check if previous N side clusters crosses with it too | |
697 | for(k=1;k<fSFB+1;k++) { | |
698 | //check if we are not out of array | |
699 | if ((lastNclIndex-k)>-1) { | |
700 | fcurrN = GetNSideCluster( oneSclN[lastNclIndex-k] ); | |
701 | if( IsCrossing(currentP,fcurrN) ) { | |
702 | currentP->AddCross(oneSclN[lastNclIndex-k]); | |
703 | fcurrN->AddCross(oneSclP[i]); | |
704 | } else break; //There is no sense to check rest of clusters | |
705 | } else break; | |
706 | } | |
707 | tmplastNclIndex=lastNclIndex; | |
708 | //Check if next N side clusters crosses with it too | |
709 | for(k=1;k<fSFF+1;k++) { | |
710 | //check if we are not out of array | |
711 | if ((tmplastNclIndex+k)<fNClusterN) { | |
712 | fcurrN = GetNSideCluster( oneSclN[tmplastNclIndex+k] ); | |
713 | if(IsCrossing(currentP,fcurrN) ) { | |
714 | lastNclIndex++; | |
715 | fcurrN->AddCross(oneSclP[i]); | |
716 | currentP->AddCross(oneSclN[tmplastNclIndex+k]); | |
717 | currentpkg->AddNSideCluster(oneSclN[lastNclIndex]); | |
718 | Nclpack++; | |
719 | }else break; | |
720 | } else break; | |
721 | } | |
722 | ||
723 | // end of package | |
724 | //if( IsCrossing ) | |
725 | } else { | |
726 | lastStripP = currentP->GetLastDigitStripNo(); | |
727 | lastStripN = currentN->GetLastDigitStripNo(); | |
728 | ||
729 | if((lastStripN-fSFF) < lastStripP ) { | |
730 | //Take new PCluster | |
731 | if((Nclpack>0)&& (Pclpack>0)) { | |
732 | new ((*fPackages)[fNPackages]) AliITSpackageSSD(fClusterP,fClusterN); | |
733 | currentpkg = (AliITSpackageSSD*)((*fPackages)[fNPackages++]); | |
734 | } | |
735 | ||
736 | //so we have to take another cluster on side N and check it | |
737 | //we have to check until taken cluster's last strip will | |
738 | //be > last of this cluster(P) | |
739 | //so it means that there is no corresponding cluster on side N | |
740 | //to this cluster (P) | |
741 | //so we have to continue main loop with new "lastNclIndex" | |
742 | ||
743 | Nclpack=0; | |
744 | Pclpack=0; | |
745 | //We are not sure that next N cluter will cross with this P cluster | |
746 | //There might one, or more, clusters that do not have any | |
747 | //corresponding cluster on the other side | |
748 | for(;;) { | |
749 | lastNclIndex++; | |
750 | //Check if we are not out of array | |
751 | if (lastNclIndex<fNClusterN) { | |
752 | currentN = GetNSideCluster(oneSclN[lastNclIndex]); | |
753 | if ( IsCrossing(currentP, currentN) ){ | |
754 | Nclpack++; | |
755 | Pclpack++; | |
756 | currentP->AddCross(oneSclN[lastNclIndex]); | |
757 | currentN->AddCross(oneSclP[i]); | |
758 | currentpkg->AddNSideCluster(oneSclN[lastNclIndex]); | |
759 | currentpkg->AddPSideCluster(oneSclP[i]); | |
760 | //Check, if next N side clusters crosses with it too | |
761 | tmplastNclIndex=lastNclIndex; | |
762 | for(k=1;k<fSFF+1;k++) { | |
763 | //Check if we are not out of array | |
764 | if ((tmplastNclIndex+k)<fNClusterN) { | |
765 | fcurrN = GetNSideCluster(oneSclN[tmplastNclIndex+k]); | |
766 | if( IsCrossing(currentP, fcurrN) ) { | |
767 | Nclpack++; | |
768 | lastNclIndex++; | |
769 | currentP->AddCross(oneSclN[tmplastNclIndex+k]); | |
770 | fcurrN->AddCross(oneSclP[i]); | |
771 | currentpkg->AddNSideCluster(oneSclN[tmplastNclIndex+k]); | |
772 | }else break; | |
773 | } else break; //we are out of array | |
774 | } // end loop | |
775 | break; | |
776 | } else { | |
777 | firstStripP = currentP->GetFirstDigitStripNo(); | |
778 | firstStripN = currentN->GetFirstDigitStripNo(); | |
779 | if((firstStripN+fSFB)>=firstStripP) break; | |
780 | else continue; | |
781 | } | |
782 | } else goto EndOfFunction; | |
783 | } // end for(;;) | |
784 | } else //EndOfPackage | |
785 | { | |
786 | continue; | |
787 | } //else EndOfPackage | |
788 | ||
789 | }//else IsCrossing | |
790 | ||
791 | }//main for | |
792 | ||
793 | EndOfFunction: | |
794 | if ((Nclpack<1) || (Pclpack<1)) fNPackages--; | |
795 | ||
796 | delete oneSclP; | |
797 | delete oneSclN; | |
798 | ||
799 | } | |
800 | ||
801 | ||
802 | ||
803 | //----------------------------------------------- | |
804 | void AliITSClusterFinderSSD::PackagesToPoints() | |
805 | { | |
806 | ||
807 | register Int_t i; | |
808 | AliITSpackageSSD *currentpkg; | |
809 | Int_t NumNcl; | |
810 | Int_t NumPcl; | |
811 | Int_t clusterIndex; | |
812 | Bool_t clusterSide; | |
813 | ||
814 | for(i=0;i<fNPackages;i++) { | |
815 | //get pointer to next package | |
816 | currentpkg = (AliITSpackageSSD*)((*fPackages)[i]); | |
817 | NumNcl = currentpkg->GetNumOfClustersN(); | |
818 | NumPcl = currentpkg->GetNumOfClustersP(); | |
819 | if(debug) cout<<"New Package\nNumPcl ="<<NumPcl<<" NumNcl ="<<NumNcl<<"\n"; | |
820 | ||
821 | while(((NumPcl>=2)&&(NumNcl>2))||((NumPcl>2)&&(NumNcl>=2))) { | |
822 | //This is case of "big" pacakage | |
823 | //conditions see 3 lines above | |
824 | //if in the big package exists cluster with one cross | |
825 | //we can reconstruct this point without any geometrical ambiguities | |
826 | if(currentpkg->GetClusterWithOneCross(clusterIndex, clusterSide) ) | |
827 | { | |
828 | ResolveClusterWithOneCross(currentpkg, clusterIndex, clusterSide); | |
829 | } else if (clusterIndex == -2) { | |
830 | NumPcl = 0; | |
831 | NumNcl = 0; | |
832 | break; | |
833 | } else { | |
834 | if ( (NumNcl==NumPcl) && (NumPcl<10)) { | |
835 | //if there is no cluster with one cross | |
836 | //we can resolve whole package at once | |
837 | //by finding best combination | |
838 | //we can make combinations when NumNcl==NumPcl | |
839 | if (ResolvePackageBestCombin(currentpkg)) { | |
840 | //sometimes creating combinations fail, | |
841 | //but it happens very rarely | |
842 | NumPcl = 0; | |
843 | NumNcl = 0; | |
844 | break; | |
845 | } else ResolveOneBestMatchingPoint(currentpkg); | |
846 | } else { | |
847 | ResolveOneBestMatchingPoint(currentpkg); | |
848 | } | |
849 | } | |
850 | NumNcl = currentpkg->GetNumOfClustersN(); | |
851 | NumPcl = currentpkg->GetNumOfClustersP(); | |
852 | } // end while | |
853 | if ((NumPcl==1)&&(NumNcl==1)) { | |
854 | ResolveSimplePackage(currentpkg); | |
855 | continue; | |
856 | } | |
857 | if (NumPcl==1) { | |
858 | ResolvePackageWithOnePSideCluster(currentpkg); | |
859 | continue; | |
860 | } | |
861 | if (NumNcl==1) { | |
862 | ResolvePackageWithOneNSideCluster(currentpkg); | |
863 | continue; | |
864 | } | |
865 | if ((NumPcl==2)&&(NumNcl==2)) { | |
866 | ResolveTwoForTwoPackage(currentpkg); | |
867 | continue; | |
868 | } | |
869 | if ((NumPcl==0)&&(NumNcl>0)) { } | |
870 | if ((NumNcl==0)&&(NumPcl>0)) { } | |
871 | ||
872 | } // end loop over fNPackages | |
873 | ||
874 | ||
875 | } | |
876 | ||
877 | ||
878 | //---------------------------------------------------------- | |
879 | ||
880 | void AliITSClusterFinderSSD:: | |
881 | ResolveClusterWithOneCross(AliITSpackageSSD *currentpkg, Int_t clusterIndex, Bool_t clSide) | |
882 | { | |
883 | ||
884 | if (clSide == SIDEP) ResolvePClusterWithOneCross(currentpkg,clusterIndex); | |
885 | else ResolveNClusterWithOneCross(currentpkg,clusterIndex); | |
886 | ||
887 | } | |
888 | ||
889 | ||
890 | //--------------------------------------------------------- | |
891 | void AliITSClusterFinderSSD:: | |
892 | ResolvePClusterWithOneCross(AliITSpackageSSD *pkg, Int_t clusterIndex) | |
893 | { | |
894 | ||
895 | /* | |
896 | There is cluster (side P) which crosses with only one cluster on the other | |
897 | side (N) | |
898 | ||
899 | ie: | |
900 | \ / \/ / | |
901 | \ / /\ / | |
902 | \/ / \/ | |
903 | /\ / /\ | |
904 | / \/ / \ ..... | |
905 | / /\ / \ | |
906 | / / \/ \ | |
907 | / / /\ \ | |
908 | / / / \ \ | |
909 | */ | |
910 | ||
911 | ||
912 | AliITSclusterSSD * clusterP; | |
913 | AliITSclusterSSD * clusterN; | |
914 | ||
915 | Float_t posClusterP; //Cluster P position in strip coordinates | |
916 | Float_t posClusterN; //Cluster N position in strip coordinates | |
917 | ||
918 | Float_t posErrorClusterP; | |
919 | Float_t posErrorClusterN; | |
920 | ||
921 | Float_t sigClusterP; | |
922 | Float_t sigClusterN; | |
923 | ||
924 | Float_t sigErrorClusterP; | |
925 | Float_t sigErrorClusterN; | |
926 | ||
927 | Float_t ps; | |
928 | Float_t ns; | |
929 | ||
930 | Float_t Chicomb; | |
931 | Int_t clusterIdx; | |
932 | ||
933 | if (debug) cout<<"ResolvePClusterWithOneCross\n"; | |
934 | ||
935 | clusterP=pkg->GetPSideCluster(clusterIndex); | |
936 | posClusterP = GetClusterZ(clusterP); | |
937 | posErrorClusterP = clusterP->GetPositionError(); | |
938 | sigClusterP = ps = clusterP->GetTotalSignal(); | |
939 | sigErrorClusterP = clusterP->GetTotalSignalError(); | |
940 | //carefully, it returns index in TClonesArray | |
941 | ||
942 | clusterIdx = clusterP->GetCross(0); | |
943 | clusterN=this->GetNSideCluster(clusterIdx); | |
944 | ns = clusterN->GetTotalSignal(); | |
945 | posClusterN = GetClusterZ(clusterN); | |
946 | posErrorClusterN = clusterN->GetPositionError(); | |
947 | pkg->DelCluster(clusterIndex,SIDEP); | |
be33dccb | 948 | sigClusterN = ps/fPNsignalRatio; |
b0f5e3fc | 949 | // there is no sonse to check how signal ratio is far from perfect |
950 | // matching line if the if below it is true | |
951 | if (ns < sigClusterN) { | |
952 | sigClusterN=ns; | |
be33dccb | 953 | if (debug) cout<<"n1 < p1/fPNsignalRatio"; |
b0f5e3fc | 954 | if (debug) cout<<"Attempting to del cluster N "<<clusterIdx<<" ... \n"; |
955 | pkg->DelClusterOI(clusterIdx,SIDEN); | |
956 | } else { | |
957 | //Let's see how signal ratio is far from perfect matching line | |
958 | Chicomb = DistToPML(ps,ns); | |
959 | if (debug) cout<<"Chic "<<Chicomb<<"\n"; | |
960 | if (Chicomb > falpha2) { | |
961 | //it is near, so we can risk throwing this cluster away too | |
962 | if (debug) cout<<"Attempting to del cluster N "<<clusterIdx<<"...\n"; | |
963 | pkg->DelClusterOI(clusterIdx,SIDEN); | |
964 | } else { | |
965 | clusterN->CutTotalSignal(sigClusterN); | |
966 | if (debug) cout <<"Signal cut |||||||||||||\n"; | |
967 | } | |
968 | } | |
969 | sigErrorClusterN= clusterN->GetTotalSignalError(); | |
970 | CreateNewRecPoint(posClusterP,posErrorClusterP,posClusterN,posErrorClusterN, | |
971 | sigClusterP+sigClusterN, sigErrorClusterN+sigErrorClusterP, | |
972 | clusterP, clusterN, 0.75); | |
973 | ||
974 | } | |
975 | ||
976 | ||
977 | //------------------------------------------------------ | |
978 | void AliITSClusterFinderSSD:: | |
979 | ResolveNClusterWithOneCross(AliITSpackageSSD *pkg, Int_t clusterIndex) | |
980 | { | |
981 | ||
982 | AliITSclusterSSD * clusterP; | |
983 | AliITSclusterSSD * clusterN; | |
984 | ||
985 | Float_t posClusterP; //Cluster P position in strip coordinates | |
986 | Float_t posClusterN; //Cluster N position in strip coordinates | |
987 | ||
988 | Float_t posErrorClusterP; | |
989 | Float_t posErrorClusterN; | |
990 | ||
991 | Float_t sigClusterP; | |
992 | Float_t sigClusterN; | |
993 | ||
994 | Float_t sigErrorClusterP; | |
995 | Float_t sigErrorClusterN; | |
996 | ||
997 | Float_t ps; | |
998 | Float_t ns; | |
999 | ||
1000 | Float_t Chicomb; | |
1001 | Int_t clusterIdx; | |
1002 | ||
1003 | if (debug) cout<<"ResolveNClusterWithOneCross\n"; | |
1004 | ||
1005 | clusterN=pkg->GetNSideCluster(clusterIndex); | |
1006 | posClusterN = GetClusterZ(clusterN); | |
1007 | posErrorClusterN = clusterN->GetPositionError(); | |
1008 | sigClusterN = ns = clusterN->GetTotalSignal(); | |
1009 | sigErrorClusterN = clusterN->GetTotalSignalError(); | |
1010 | //carefully, it returns index in TClonesArray | |
1011 | clusterIdx = clusterN->GetCross(0); | |
1012 | clusterP=this->GetPSideCluster(clusterIdx); | |
1013 | ps = clusterP->GetTotalSignal(); | |
1014 | posClusterP = GetClusterZ(clusterP); | |
1015 | posErrorClusterP = clusterP->GetPositionError(); | |
1016 | pkg->DelCluster(clusterIndex,SIDEN); | |
be33dccb | 1017 | sigClusterP=ns*fPNsignalRatio; |
b0f5e3fc | 1018 | // there is no sonse to check how signal ratio is far from perfect |
1019 | // matching line if the if below it is true | |
1020 | if (ps < sigClusterP) { | |
1021 | sigClusterP = ps; | |
be33dccb | 1022 | if (debug) cout<<"ps < ns*fPNsignalRatio"; |
b0f5e3fc | 1023 | if (debug) cout<<"Attempting to del cluster P "<<clusterIdx<<" ... \n"; |
1024 | pkg->DelClusterOI(clusterIdx,SIDEP); | |
1025 | } else { | |
1026 | //Let's see how signal ratio is far from perfect matching line | |
1027 | Chicomb = DistToPML(ps,ns); | |
1028 | if (debug) cout<<"Chic "<<Chicomb<<"\n"; | |
1029 | if (Chicomb > falpha2) { | |
1030 | //it is near, so we can risk frowing this cluster away too | |
1031 | if (debug) cout<<"Attempting to del cluster P "<<clusterIdx<<"...\n"; | |
1032 | pkg->DelClusterOI(clusterIdx,SIDEP); | |
1033 | } else { | |
1034 | clusterN->CutTotalSignal(sigClusterP); | |
1035 | if (debug) cout <<"Signal cut ------------\n"; | |
1036 | } | |
1037 | } | |
1038 | sigErrorClusterP= clusterP->GetTotalSignalError(); | |
1039 | CreateNewRecPoint( posClusterP,posErrorClusterP,posClusterN,posErrorClusterN, | |
1040 | sigClusterP+sigClusterN,sigErrorClusterN+sigErrorClusterP, | |
1041 | clusterP, clusterN, 0.75); | |
1042 | ||
1043 | ||
1044 | } | |
1045 | ||
1046 | ||
1047 | ||
1048 | //------------------------------------------------------- | |
1049 | ||
1050 | Bool_t AliITSClusterFinderSSD:: | |
1051 | ResolvePackageBestCombin(AliITSpackageSSD *pkg) | |
1052 | { | |
1053 | if (debug) cout<<"NumNcl==NumPcl ("<<pkg->GetNumOfClustersN() | |
1054 | <<"=="<<pkg->GetNumOfClustersP()<<"); Generating combinations ... \n"; | |
1055 | ||
1056 | ||
1057 | AliITSclusterSSD * clusterP; | |
1058 | AliITSclusterSSD * clusterN; | |
1059 | ||
1060 | Int_t Ncombin; //Number of combinations | |
1061 | Int_t itera; //iterator | |
1062 | Int_t sizet=1; //size of array to allocate | |
1063 | ||
1064 | Int_t NP = pkg->GetNumOfClustersP(); | |
1065 | for(itera =2; itera <= NP ;itera ++) { | |
1066 | sizet=sizet*itera; | |
1067 | if (sizet > 10000) { | |
1068 | sizet=10000; | |
1069 | break; | |
1070 | } | |
1071 | } | |
1072 | ||
9052c0ce | 1073 | Int_t **combin = new Int_t*[sizet]; //2D array to keep combinations in |
b0f5e3fc | 1074 | |
1075 | for(itera =0; itera <sizet;itera++) { | |
1076 | combin[itera] = new Int_t[NP+1]; | |
1077 | } | |
1078 | ||
1079 | pkg->GetAllCombinations(combin,Ncombin,sizet); | |
1080 | ||
1081 | if (Ncombin==0) { | |
1082 | if (debug) cout<<"No combin Error"; | |
1083 | return kFALSE; | |
1084 | } | |
1085 | //calculate which combination fits the best to perfect matching line | |
1086 | Int_t bc = GetBestComb(combin,Ncombin,NP,pkg); | |
1087 | if (debug) cout<<" bc "<<bc <<"\n"; | |
1088 | ||
1089 | for(itera =0; itera < NP; itera ++) { | |
1090 | clusterP = pkg->GetPSideCluster(itera); | |
1091 | //carefully here | |
1092 | //becase AliITSclusterSSD::GetCross returns index in | |
1093 | //AliITSmoduleSSD.fClusterP, which is put to "combin" | |
1094 | clusterN = GetNSideCluster(combin[bc][itera]); | |
1095 | CreateNewRecPoint(clusterP, clusterN, 0.75); | |
1096 | } | |
1097 | ||
1098 | for(itera =0; itera <sizet;itera++) { | |
1099 | delete [](combin[itera]); | |
1100 | } | |
1101 | delete [] combin; | |
1102 | return kTRUE; | |
1103 | ||
1104 | } | |
1105 | ||
1106 | ||
1107 | //---------------------------------------------------- | |
1108 | void AliITSClusterFinderSSD:: | |
1109 | ResolveOneBestMatchingPoint(AliITSpackageSSD *pkg) | |
1110 | { | |
1111 | ||
1112 | Int_t ni, pi; | |
1113 | ||
1114 | Int_t prvP, prvN; | |
1115 | Int_t nextP, nextN=0; | |
1116 | ||
1117 | ||
1118 | AliITSclusterSSD * clusterP; | |
1119 | AliITSclusterSSD * clusterN; | |
1120 | ||
1121 | Bool_t split = kFALSE; | |
1122 | ||
1123 | if (debug) cout<<"ResolveOneBestMatchingPoint \n"; | |
1124 | ||
1125 | GetBestMatchingPoint(pi, ni, pkg); | |
1126 | ||
1127 | clusterP = GetPSideCluster(pi); | |
1128 | clusterN = GetNSideCluster(ni); | |
1129 | ||
1130 | CreateNewRecPoint(clusterP, clusterN, 0.75); | |
1131 | ||
1132 | if ((nextP=pkg->GetNextPIdx(pi))!=-1) | |
1133 | if ((nextN=pkg->GetNextNIdx(ni))!=-1) | |
1134 | if ((prvP=pkg->GetPrvPIdx(pi))!=-1) | |
1135 | if ((prvN=pkg->GetPrvNIdx(ni))!=-1) | |
1136 | if( !(GetPSideCluster(prvP)->IsCrossingWith(nextN))) | |
1137 | if( !(GetPSideCluster(nextP)->IsCrossingWith(prvN))) | |
1138 | { | |
1139 | split = kTRUE; | |
1140 | } | |
1141 | ||
1142 | ||
1143 | pkg->DelClusterOI(pi, SIDEP); | |
1144 | pkg->DelClusterOI(ni, SIDEN); | |
1145 | ||
1146 | if (split) { | |
1147 | if (debug) cout<<"spltting package ...\n"; | |
1148 | new ((*fPackages)[fNPackages]) AliITSpackageSSD(fClusterP,fClusterN); | |
1149 | pkg-> | |
1150 | SplitPackage(nextP,nextN,(AliITSpackageSSD*)((*fPackages)[fNPackages++])); | |
1151 | } | |
1152 | ||
1153 | } | |
1154 | ||
1155 | ||
1156 | //-------------------------------------------------- | |
1157 | void AliITSClusterFinderSSD::ResolveSimplePackage(AliITSpackageSSD *pkg) | |
1158 | { | |
1159 | ||
1160 | AliITSclusterSSD * clusterP; | |
1161 | AliITSclusterSSD * clusterN; | |
1162 | ||
1163 | clusterP = pkg->GetPSideCluster(0); | |
1164 | ||
1165 | clusterN = pkg->GetNSideCluster(0); | |
1166 | ||
1167 | CreateNewRecPoint(clusterP, clusterN, 1.0); | |
1168 | ||
1169 | ||
1170 | } | |
1171 | ||
1172 | ||
1173 | //-------------------------------------------------- | |
1174 | void AliITSClusterFinderSSD:: ResolvePackageWithOnePSideCluster(AliITSpackageSSD *pkg) { | |
1175 | ||
1176 | ||
1177 | /* | |
1178 | \ \ \ / | |
1179 | \ \ \/ | |
1180 | \ \ /\ | |
1181 | \ \/ \ | |
1182 | \ /\ \ | |
1183 | \/ \ \ | |
1184 | /\ \ \ | |
1185 | / \ \ \ | |
1186 | ||
1187 | */ | |
1188 | ||
1189 | ||
1190 | /************************/ | |
1191 | /**************************/ | |
1192 | /*XP SP itg jest tylko jeden nie musi byc tablica i w peetli nie trzeba po niej iterowcac*/ | |
1193 | /***************************/ | |
1194 | ||
1195 | ||
1196 | Int_t k; | |
1197 | AliITSclusterSSD * clusterP; | |
1198 | AliITSclusterSSD * clusterN; | |
1199 | ||
1200 | Int_t NN=pkg->GetNumOfClustersN(); | |
1201 | Float_t sumsig = 0; | |
1202 | ||
1203 | Float_t XP; | |
1204 | Float_t XPerr; | |
1205 | ||
1206 | Float_t * XN = new Float_t[NN]; | |
1207 | Float_t * XNerr = new Float_t[NN]; | |
1208 | ||
1209 | Float_t * SP = new Float_t[NN]; | |
1210 | Float_t * SN = new Float_t[NN]; | |
1211 | ||
1212 | Float_t * SPerr = new Float_t[NN]; | |
1213 | Float_t * SNerr = new Float_t[NN]; | |
1214 | ||
1215 | Float_t p1; | |
1216 | Float_t p1err; | |
1217 | ||
1218 | clusterP = pkg->GetPSideCluster(0); | |
1219 | p1 = clusterP->GetTotalSignal(); | |
1220 | ||
1221 | XP = GetClusterZ(clusterP); | |
1222 | XPerr = clusterP->GetPositionError(); | |
1223 | p1err = clusterP->GetTotalSignalError(); | |
1224 | ||
1225 | for(k=0;k<NN;k++) { | |
1226 | SN[k] = pkg->GetNSideCluster(k)->GetTotalSignal(); | |
1227 | SNerr[k] = pkg->GetNSideCluster(k)->GetTotalSignalError(); | |
1228 | sumsig += SN[k]; | |
1229 | } | |
1230 | for(k=0;k<NN;k++) { | |
1231 | clusterN = pkg->GetNSideCluster(k); | |
1232 | SP[k]= p1*SN[k]/sumsig; | |
1233 | SPerr[k] = p1err*SN[k]/sumsig; | |
1234 | XN[k]=GetClusterZ(clusterN); | |
1235 | XNerr[k]= clusterN->GetPositionError(); | |
1236 | CreateNewRecPoint(XP,XPerr, XN[k],XNerr[k], SP[k]+SN[k], SPerr[k]+SNerr[k], clusterP, clusterN, 1.0); | |
1237 | ||
1238 | } | |
1239 | ||
1240 | } | |
1241 | ||
1242 | ||
1243 | //--------------------------------------------------------- | |
1244 | void AliITSClusterFinderSSD::ResolvePackageWithOneNSideCluster(AliITSpackageSSD *pkg) { | |
1245 | ||
1246 | ||
1247 | /* | |
1248 | \ / / / | |
1249 | \ / / / | |
1250 | \/ / / | |
1251 | /\ / / | |
1252 | / \/ / | |
1253 | / /\ / | |
1254 | / / \/ | |
1255 | / / /\ | |
1256 | / / / \ | |
1257 | */ | |
1258 | ||
1259 | ||
1260 | Int_t k; | |
1261 | AliITSclusterSSD * clusterP; | |
1262 | AliITSclusterSSD * clusterN; | |
1263 | ||
1264 | Int_t NP=pkg->GetNumOfClustersP(); | |
1265 | Float_t sumsig = 0; | |
1266 | ||
1267 | Float_t * XP = new Float_t[NP]; | |
1268 | Float_t * XPerr = new Float_t[NP]; | |
1269 | ||
1270 | Float_t XN; | |
1271 | Float_t XNerr; | |
1272 | ||
1273 | Float_t * SP = new Float_t[NP]; | |
1274 | Float_t * SN = new Float_t[NP]; | |
1275 | ||
1276 | Float_t * SPerr = new Float_t[NP]; | |
1277 | Float_t * SNerr = new Float_t[NP]; | |
1278 | ||
1279 | Float_t n1; | |
1280 | Float_t n1err; | |
1281 | ||
1282 | clusterN = pkg->GetNSideCluster(0); | |
1283 | n1 = clusterN->GetTotalSignal(); | |
1284 | ||
1285 | XN = GetClusterZ(clusterN); | |
1286 | XNerr = clusterN->GetPositionError(); | |
1287 | ||
1288 | n1err=clusterN->GetTotalSignalError(); | |
1289 | ||
1290 | for(k=0;k<NP;k++) { | |
1291 | SP[k] = pkg->GetPSideCluster(k)->GetTotalSignal(); | |
1292 | sumsig += SP[k]; | |
1293 | SPerr[k] = pkg->GetPSideCluster(k)->GetTotalSignalError(); | |
1294 | } | |
1295 | ||
1296 | for(k=0;k<NP;k++) { | |
1297 | clusterP = pkg->GetPSideCluster(k); | |
1298 | SN[k]= n1*SP[k]/sumsig; | |
1299 | XP[k]=GetClusterZ(clusterP); | |
1300 | XPerr[k]= clusterP->GetPositionError(); | |
1301 | SNerr[k] = n1err*SP[k]/sumsig; | |
1302 | CreateNewRecPoint(XP[k],XPerr[k], XN,XNerr, SP[k]+SN[k], SPerr[k]+SNerr[k],clusterP, clusterN, 1.0); | |
1303 | } | |
1304 | ||
1305 | ||
1306 | } | |
1307 | ||
1308 | /**********************************************************************/ | |
1309 | /********* 2 X 2 *********************************************/ | |
1310 | /**********************************************************************/ | |
1311 | ||
1312 | void AliITSClusterFinderSSD:: | |
1313 | ResolveTwoForTwoPackage(AliITSpackageSSD *pkg) | |
1314 | { | |
1315 | ||
1316 | AliITSclusterSSD *clusterP1 = pkg->GetPSideCluster(0); | |
1317 | AliITSclusterSSD *clusterP2 = pkg->GetPSideCluster(1); | |
1318 | AliITSclusterSSD *clusterN1 = pkg->GetNSideCluster(0); | |
1319 | AliITSclusterSSD *clusterN2 = pkg->GetNSideCluster(1); | |
1320 | ||
1321 | AliITSclusterSSD *tmp; | |
1322 | ||
1323 | Float_t p1sig; | |
1324 | Float_t p2sig; | |
1325 | Float_t n1sig; | |
1326 | Float_t n2sig; | |
1327 | ||
1328 | Float_t p1sigErr; | |
1329 | Float_t p2sigErr; | |
1330 | Float_t n1sigErr; | |
1331 | Float_t n2sigErr; | |
1332 | ||
1333 | Float_t ZposP1; | |
1334 | Float_t ZposP2; | |
1335 | Float_t ZposN1; | |
1336 | Float_t ZposN2; | |
1337 | ||
1338 | Float_t ZposErrP1; | |
1339 | Float_t ZposErrP2; | |
1340 | Float_t ZposErrN1; | |
1341 | Float_t ZposErrN2; | |
1342 | ||
1343 | Float_t D12; | |
1344 | ||
1345 | Float_t Chicomb1; | |
1346 | Float_t Chicomb2; | |
1347 | ||
1348 | if(clusterP1->GetDigitStripNo(0) > clusterP2->GetDigitStripNo(0)) { | |
1349 | if (debug) cout<<"P strips flip\n"; | |
1350 | tmp = clusterP1; | |
1351 | clusterP1 = clusterP2; | |
1352 | clusterP2 = tmp; | |
1353 | } | |
1354 | if(clusterN1->GetDigitStripNo(0) > clusterN2->GetDigitStripNo(0)) { | |
1355 | if (debug) cout<<"N strips flip\n"; | |
1356 | tmp = clusterN1; | |
1357 | clusterN1 = clusterN2; | |
1358 | clusterN2 = tmp; | |
1359 | } | |
1360 | p1sig = clusterP1->GetTotalSignal(); | |
1361 | p2sig = clusterP2->GetTotalSignal(); | |
1362 | n1sig = clusterN1->GetTotalSignal(); | |
1363 | n2sig = clusterN2->GetTotalSignal(); | |
1364 | ||
1365 | ||
1366 | p1sigErr = clusterP1->GetTotalSignalError(); | |
1367 | n1sigErr = clusterN1->GetTotalSignalError(); | |
1368 | p2sigErr = clusterP2->GetTotalSignalError(); | |
1369 | n2sigErr = clusterN2->GetTotalSignalError(); | |
1370 | ||
1371 | ZposP1 = clusterP1->GetPosition(); | |
1372 | ZposN1 = clusterN1->GetPosition(); | |
1373 | ZposP2 = clusterP2->GetPosition(); | |
1374 | ZposN2 = clusterN2->GetPosition(); | |
1375 | ||
1376 | ZposErrP1 = clusterP1->GetPositionError(); | |
1377 | ZposErrN1 = clusterN1->GetPositionError(); | |
1378 | ZposErrP2 = clusterP2->GetPositionError(); | |
1379 | ZposErrN2 = clusterN2->GetPositionError(); | |
1380 | ||
1381 | //in this may be two types: | |
1382 | // 1.When each cluster crosses with 2 clusters on the other side | |
1383 | // gives 2 ghosts and 2 real points | |
1384 | // | |
1385 | // 2.When two clusters (one an each side) crosses with only one on | |
1386 | // the other side and two crosses (one on the each side) with | |
1387 | // two on the other gives 2 or 3 points, | |
1388 | ||
1389 | if (debug) cout<<"2 for 2 ambiguity ..."; | |
1390 | /***************************/ | |
1391 | /*First sort of combination*/ | |
1392 | /***************************/ | |
1393 | ||
1394 | if((clusterP1->GetCrossNo()==2) && (clusterN1->GetCrossNo()==2)) { | |
1395 | if (debug) cout<<"All clusters has 2 crosses\n"; | |
1396 | D12 = TMath::Sqrt((Float_t)((p1sig -p2sig)*(p1sig -p2sig) + (n1sig -n2sig)*(n1sig -n2sig))); | |
1397 | ||
1398 | if(debug) cout<<"Distance between points in P(N) plane D12 = "<<D12<<"\n"; | |
1399 | ||
1400 | /*********************************************/ | |
1401 | /*resolving ambiguities: */ | |
1402 | /*we count Chicomb's and we take combination */ | |
1403 | /*giving lower Chicomb as a real points */ | |
1404 | /*Keep only better combinantion */ | |
1405 | /*********************************************/ | |
1406 | ||
1407 | if (D12 > (falpha3*17.8768)) { | |
1408 | if (debug) cout<<"decided to take only one pair \n"; | |
1409 | Chicomb1 = DistToPML(p1sig,n1sig) + DistToPML(p2sig,n2sig); | |
1410 | Chicomb2 = DistToPML(p2sig,n1sig) + DistToPML(p1sig,n2sig); | |
1411 | if (debug) { | |
1412 | cout<<" 00 11 combination : "<<Chicomb1<<" 01 10 combination : "<<Chicomb2<<" \n"; | |
1413 | cout<<"p1 = "<<p1sig<<" n1 = "<<n1sig<<" p2 = "<<p2sig<<" n2 = "<<n2sig<<"\n"; | |
1414 | } | |
1415 | if (Chicomb1 < Chicomb2) { | |
1416 | if (debug) cout<<"00 11"; | |
1417 | CreateNewRecPoint(ZposP1,ZposErrP1, ZposN1,ZposErrN1, p1sig+n1sig, p1sigErr+n1sigErr, clusterP1, clusterN1, 0.75); | |
1418 | CreateNewRecPoint(ZposP2,ZposErrP2, ZposN2,ZposErrN2, p2sig+n2sig, p2sigErr+n2sigErr, clusterP2, clusterN2, 0.75); | |
1419 | ||
1420 | ||
1421 | //second cominantion | |
1422 | } else { | |
1423 | if (debug) cout<<"01 10"; | |
1424 | CreateNewRecPoint(ZposP1,0, ZposN2,0, p1sig+n2sig, p1sigErr+n2sigErr, clusterP1, clusterN2, 0.75); | |
1425 | CreateNewRecPoint(ZposP2,0, ZposN1,0, p2sig+n1sig, p2sigErr+n1sigErr, clusterP2, clusterN1, 0.75); | |
1426 | } //end second combinantion | |
1427 | //if (D12 > falpha3*17.8768) | |
1428 | //keep all combinations | |
1429 | } else { | |
1430 | if (debug) cout<<"We decide to take all points\n"; | |
1431 | CreateNewRecPoint(ZposP1,ZposErrP1, ZposN1,ZposErrN1, p1sig+n1sig, p1sigErr+n1sigErr, clusterP1, clusterN1, 0.5); | |
1432 | CreateNewRecPoint(ZposP2,ZposErrP2, ZposN2,ZposErrN2, p2sig+n2sig, p2sigErr+n2sigErr, clusterP2, clusterN2, 0.5); | |
1433 | CreateNewRecPoint(ZposP1,ZposErrP1, ZposN2,ZposErrN2, p1sig+n2sig, p1sigErr+n2sigErr, clusterP1, clusterN2, 0.5); | |
1434 | CreateNewRecPoint(ZposP2,ZposErrP2, ZposN1,ZposErrN1, p2sig+n1sig, p2sigErr+n1sigErr, clusterP2, clusterN1, 0.5); | |
1435 | } | |
1436 | } | |
1437 | // ad.2 Second type of combination | |
1438 | else { | |
1439 | Chicomb1 = DistToPML(p1sig,n1sig) + DistToPML(p2sig,n2sig); | |
1440 | if (debug) cout<<"\nhere can be reconstructed 3 points: chicomb = "<<Chicomb1<<"\n"; | |
1441 | ||
1442 | if (Chicomb1<falpha1) { | |
1443 | if (debug) cout<<"\nWe decided to take 3rd point"; | |
1444 | if (clusterP1->GetCrossNo()==1) { | |
1445 | if (debug) cout<<"... P1 has one cross\n"; | |
be33dccb | 1446 | n1sig = p1sig/fPNsignalRatio; |
1447 | p2sig = n2sig*fPNsignalRatio; | |
b0f5e3fc | 1448 | |
1449 | clusterN1->CutTotalSignal(n1sig); | |
1450 | clusterP2->CutTotalSignal(p2sig); | |
1451 | ||
1452 | CreateNewRecPoint(ZposP2,ZposErrP2, ZposN1,ZposErrN1, p2sig+n1sig, p2sigErr+n1sigErr, clusterP2, clusterN1, 0.5); | |
1453 | ||
1454 | n1sig = clusterN1->GetTotalSignal(); | |
1455 | p2sig = clusterP2->GetTotalSignal(); | |
1456 | ||
1457 | } else { | |
1458 | if (debug) cout<<"... N1 has one cross\n"; | |
1459 | ||
be33dccb | 1460 | n2sig=p2sig/fPNsignalRatio; |
1461 | p1sig=n1sig*fPNsignalRatio; | |
b0f5e3fc | 1462 | |
1463 | clusterN2->CutTotalSignal(n2sig); | |
1464 | clusterP1->CutTotalSignal(p1sig); | |
1465 | ||
1466 | CreateNewRecPoint(ZposP1,ZposErrP1, ZposN2,ZposErrN2, p1sig+n2sig, p1sigErr+n2sigErr, clusterP1, clusterN2, 0.5); | |
1467 | ||
1468 | n2sig=clusterN2->GetTotalSignal(); | |
1469 | p1sig=clusterP1->GetTotalSignal(); | |
1470 | } | |
1471 | } else { | |
1472 | if (debug) cout<<"\nWe decided NOT to take 3rd point\n"; | |
1473 | } | |
1474 | ||
1475 | CreateNewRecPoint(ZposP1,ZposErrP1, ZposN1,ZposErrN1, p1sig+n1sig, p1sigErr+n1sigErr, clusterP1, clusterN1, 1.0); | |
1476 | CreateNewRecPoint(ZposP2,ZposErrP2, ZposN2,ZposErrN2, p2sig+n2sig, p2sigErr+n2sigErr, clusterP2, clusterN2, 1.0); | |
1477 | ||
1478 | } | |
1479 | ||
1480 | } | |
1481 | ||
1482 | ||
1483 | ||
1484 | //------------------------------------------------------ | |
1485 | Bool_t AliITSClusterFinderSSD:: | |
1486 | CreateNewRecPoint(Float_t P, Float_t dP, Float_t N, Float_t dN, | |
1487 | Float_t Sig,Float_t dSig, | |
1488 | AliITSclusterSSD *clusterP, AliITSclusterSSD *clusterN, | |
1489 | Stat_t prob) | |
1490 | { | |
1491 | ||
1492 | const Float_t kdEdXtoQ = 2.778e+8; | |
1493 | const Float_t kconv = 1.0e-4; | |
1494 | const Float_t kRMSx = 20.0*kconv; // microns->cm ITS TDR Table 1.3 | |
1495 | const Float_t kRMSz = 830.0*kconv; // microns->cm ITS TDR Table 1.3 | |
1496 | ||
1497 | ||
1498 | Float_t p=P; | |
1499 | Float_t n=N; | |
1500 | if (GetCrossing(P,N)) { | |
1501 | GetCrossingError(dP,dN); | |
1502 | AliITSRawClusterSSD cnew; | |
1503 | Int_t nstripsP=clusterP->GetNumOfDigits(); | |
1504 | Int_t nstripsN=clusterN->GetNumOfDigits(); | |
1505 | cnew.fMultiplicity=nstripsP; | |
1506 | cnew.fMultiplicityN=nstripsN; | |
1507 | /* | |
1508 | if (nstripsP > 100) { | |
1509 | printf("multiplicity > 100 - increase the dimension of the arrays %d\n",nstripsP); | |
1510 | nstripsP=100; | |
1511 | } | |
1512 | Int_t i; | |
1513 | for(i=0;i<nstripsP;i++) { | |
1514 | // check if 'clusterP->GetDigitStripNo(i)' returns the digit index | |
1515 | cnew.fIndexMap[i] = clusterP->GetDigitStripNo(i); | |
1516 | } | |
1517 | if (nstripsN > 100) { | |
1518 | printf("multiplicity > 100 - increase the dimension of the arrays %d\n",nstripsN); | |
1519 | nstripsN=100; | |
1520 | } | |
1521 | for(i=0;i<nstripsN;i++) { | |
1522 | // check if 'clusterN->GetDigitStripNo(i)' returns the digit index | |
1523 | cnew.fIndexMapN[i] = clusterN->GetDigitStripNo(i); | |
1524 | } | |
1525 | */ | |
1526 | cnew.fQErr=dSig; | |
1527 | //cnew.fProbability=(float)prob; | |
1528 | fITS->AddCluster(2,&cnew); | |
1529 | // add the rec point info | |
1530 | AliITSRecPoint rnew; | |
1531 | rnew.SetX(P*kconv); | |
1532 | rnew.SetZ(N*kconv); | |
1533 | rnew.SetQ(Sig); | |
1534 | rnew.SetdEdX(Sig/kdEdXtoQ); | |
1535 | rnew.SetSigmaX2( kRMSx* kRMSx); | |
1536 | rnew.SetSigmaZ2( kRMSz* kRMSz); | |
1537 | rnew.SetProbability((float)prob); | |
1538 | fITS->AddRecPoint(rnew); | |
1539 | /* | |
1540 | // it was | |
1541 | fPointsM->AddLast( (TObject*) | |
1542 | new AliITSRecPointSSD(P,dP,0,0,N,dN,Sig,dSig,fLayer,fLad,fDet,clusterP,clusterN,prob) ); | |
1543 | */ | |
1544 | ||
1545 | if(debug) cout<<"\n"<<": ImpactPoint Created: X = "<<P<<" Z = "<<N<<"; P = "<<p<<" N = "<<n<<"\n"; | |
1546 | return kTRUE; | |
1547 | } else { | |
1548 | if (debug) { | |
1549 | cout<<"\n"<<": ATENTION : stupid ImpactPoit Point X = "<<P<<" Z = "<<N<<"; P = "<<p<<" N = "<<n<<"\n"; | |
1550 | } | |
1551 | return kFALSE; | |
1552 | } | |
1553 | } | |
1554 | ||
1555 | ||
1556 | ||
1557 | /**********************************************************************/ | |
1558 | Bool_t AliITSClusterFinderSSD:: | |
1559 | CreateNewRecPoint(AliITSclusterSSD *clusterP, AliITSclusterSSD *clusterN, Stat_t prob) | |
1560 | { | |
1561 | Float_t posClusterP; //Cluster P position in strip coordinates | |
1562 | Float_t posClusterN; //Cluster N position in strip coordinates | |
1563 | ||
1564 | Float_t posErrorClusterP; | |
1565 | Float_t posErrorClusterN; | |
1566 | ||
1567 | Float_t sigClusterP; | |
1568 | Float_t sigClusterN; | |
1569 | ||
1570 | Float_t sigErrorClusterP; | |
1571 | Float_t sigErrorClusterN; | |
1572 | ||
1573 | posClusterP = clusterP->GetPosition(); | |
1574 | posErrorClusterP = clusterP->GetPositionError(); | |
1575 | sigClusterP = clusterP->GetTotalSignal(); | |
1576 | sigErrorClusterP = clusterP->GetTotalSignalError(); | |
1577 | ||
1578 | posClusterN = clusterN->GetPosition(); | |
1579 | posErrorClusterN = clusterN->GetPositionError(); | |
1580 | sigClusterN = clusterN->GetTotalSignal(); | |
1581 | sigErrorClusterN = clusterN->GetTotalSignalError(); | |
1582 | ||
1583 | return CreateNewRecPoint( posClusterP,posErrorClusterP, posClusterN,posErrorClusterN, | |
1584 | sigClusterP+sigClusterN, sigErrorClusterN+sigErrorClusterP, | |
1585 | clusterP, clusterN, prob); | |
1586 | ||
1587 | } | |
1588 | ||
1589 | //-------------------------------------------------- | |
1590 | Bool_t AliITSClusterFinderSSD::IsCrossing(AliITSclusterSSD* p, AliITSclusterSSD* n) | |
1591 | { | |
1592 | Float_t x = p->GetPosition(); | |
1593 | Float_t y = n->GetPosition(); | |
1594 | return GetCrossing(x,y); | |
1595 | } | |
1596 | ||
1597 | ||
1598 | //---------------------------------------------- | |
1599 | Bool_t AliITSClusterFinderSSD::Strip2Local( Float_t stripP, Float_t stripN, Float_t &Z,Float_t &X) | |
1600 | { | |
1601 | ||
1602 | ||
1603 | //Piotr Krzysztof Skowronski | |
1604 | //Warsaw University of Technology | |
1605 | //skowron@if.pw.edu.pl | |
1606 | ||
1607 | /* | |
1608 | Z = (stripN-stripP)*fFactorOne; | |
1609 | X = (stripN + stripP - fStripZeroOffset)*fFactorTwo; | |
1610 | */ | |
1611 | ||
1612 | Float_t P =stripP; | |
1613 | Float_t N =stripN; | |
1614 | ||
1615 | GetCrossing(P,N); | |
1616 | X=P; | |
1617 | Z=N; | |
1618 | if (debug) cout<<"P="<<stripP<<" N="<<stripN<<" X = "<<X<<" Z = "<<Z<<"\n"; | |
1619 | if ((Z<2.1)&&(Z>-2.1)&&(X<3.65)&&(X>-3.65)) return true; | |
1620 | else return false; | |
1621 | ||
1622 | } | |
1623 | ||
1624 | ||
1625 | //----------------------------------------------------------- | |
1626 | Float_t AliITSClusterFinderSSD::GetClusterZ(AliITSclusterSSD* clust) | |
1627 | { | |
1628 | ||
1629 | return clust->GetPosition(); | |
1630 | ||
1631 | } | |
1632 | ||
1633 | //------------------------------------------------------------- | |
1634 | Int_t AliITSClusterFinderSSD::GetBestComb | |
1635 | (Int_t** comb,Int_t Ncomb, Int_t Ncl, AliITSpackageSSD * pkg) | |
1636 | { | |
1637 | ||
1638 | ||
1639 | //Piotr Krzysztof Skowronski | |
1640 | //Warsaw University of Technology | |
1641 | //skowron@if.pw.edu.pl | |
1642 | ||
1643 | //returns index of best combination in "comb" | |
1644 | //comb : sets of combinations | |
1645 | // in given combination on place "n" is index of | |
1646 | // Nside cluster coresponding to "n" P side cluster | |
1647 | // | |
1648 | //Ncomb : number of combinations == number of rows in "comb" | |
1649 | // | |
1650 | //Ncl : number of clusters in each row == number of columns in "comb" | |
1651 | // | |
1652 | //pkg : package | |
1653 | ||
1654 | ||
1655 | Float_t currbval=-1; //current best value, | |
1656 | //starting value is set to number negative, | |
1657 | //to be changed in first loop turn automatically | |
1658 | ||
1659 | Int_t curridx=0; //index of combination giving currently the best chi^2 | |
1660 | Float_t chi; | |
1661 | Float_t ps, ns; //signal of P cluster and N cluster | |
1662 | ||
1663 | Int_t i,j; | |
1664 | for(i=0;i<Ncomb;i++) | |
1665 | { | |
1666 | chi=0; | |
1667 | ||
1668 | for(j=0;j<Ncl;j++) | |
1669 | { | |
1670 | ps = pkg->GetPSideCluster(j)->GetTotalSignal(); //carrefully here, different functions | |
1671 | ns = GetNSideCluster(comb[i][j])->GetTotalSignal(); | |
1672 | chi+=DistToPML(ps,ns); | |
1673 | } | |
1674 | ||
1675 | if (currbval==-1) currbval = chi; | |
1676 | if (chi<currbval) | |
1677 | { | |
1678 | curridx = i; | |
1679 | currbval =chi; | |
1680 | } | |
1681 | } | |
1682 | ||
1683 | ||
1684 | return curridx; | |
1685 | ||
1686 | } | |
1687 | ||
1688 | //-------------------------------------------------- | |
1689 | void AliITSClusterFinderSSD::GetBestMatchingPoint | |
1690 | (Int_t & ip, Int_t & in, AliITSpackageSSD* pkg ) | |
1691 | { | |
1692 | ||
1693 | ||
1694 | //Piotr Krzysztof Skowronski | |
1695 | //Warsaw University of Technology | |
1696 | //skowron@if.pw.edu.pl | |
1697 | ||
1698 | if (debug) pkg->PrintClusters(); | |
1699 | ||
1700 | Float_t ps, ns; //signals on side p & n | |
1701 | ||
1702 | Int_t nc; // number of crosses in given p side cluster | |
1703 | Int_t n,p; | |
1704 | AliITSclusterSSD *curPcl, *curNcl; //current p side cluster | |
1705 | Float_t bestchi, chi; | |
1706 | ip=p=pkg->GetPSideClusterIdx(0); | |
1707 | in=n=pkg->GetNSideClusterIdx(0); | |
1708 | ||
1709 | bestchi=DistToPML( pkg->GetPSideCluster(0)->GetTotalSignal(), | |
1710 | pkg->GetNSideCluster(0)->GetTotalSignal() ); | |
1711 | Int_t i,j; | |
1712 | for(i = 0; i< pkg->GetNumOfClustersP(); i++) | |
1713 | { | |
1714 | ||
1715 | p = pkg->GetPSideClusterIdx(i); | |
1716 | curPcl= GetPSideCluster(p); | |
1717 | nc=curPcl->GetCrossNo(); | |
1718 | ps=curPcl->GetTotalSignal(); | |
1719 | ||
1720 | for(j = 0; j< nc; j++) | |
1721 | { | |
1722 | n=curPcl->GetCross(j); | |
1723 | curNcl= GetNSideCluster(n); | |
1724 | ns=curNcl->GetTotalSignal(); | |
1725 | chi = DistToPML(ps, ns); | |
1726 | ||
1727 | if (chi <= bestchi) | |
1728 | { | |
1729 | bestchi = chi; | |
1730 | in = n; | |
1731 | ip = p; | |
1732 | } | |
1733 | } | |
1734 | } | |
1735 | ||
1736 | } | |
1737 | ||
1738 | ||
1739 | //------------------------------------------------------ | |
1740 | void AliITSClusterFinderSSD::CalcStepFactor(Float_t Psteo, Float_t Nsteo ) | |
1741 | { | |
1742 | ||
1743 | ||
1744 | //Piotr Krzysztof Skowronski | |
1745 | //Warsaw University of Technology | |
1746 | //skowron@if.pw.edu.pl | |
1747 | ||
1748 | ||
1749 | // 95 is the pitch, 4000 - dimension along z ? | |
1750 | /* | |
1751 | fSFF = ( (Int_t) (Psteo*40000/95 ) );// +1; | |
1752 | fSFB = ( (Int_t) (Nsteo*40000/95 ) );// +1; | |
1753 | */ | |
1754 | ||
1755 | ||
1756 | Float_t dz=fSegmentation->Dz(); | |
1757 | ||
1758 | fSFF = ( (Int_t) (Psteo*dz/fPitch ) );// +1; | |
1759 | fSFB = ( (Int_t) (Nsteo*dz/fPitch ) );// +1; | |
1760 | ||
1761 | } | |
1762 | ||
1763 | ||
1764 | //----------------------------------------------------------- | |
1765 | AliITSclusterSSD* AliITSClusterFinderSSD::GetPSideCluster(Int_t idx) | |
1766 | { | |
1767 | ||
1768 | ||
1769 | //Piotr Krzysztof Skowronski | |
1770 | //Warsaw University of Technology | |
1771 | //skowron@if.pw.edu.pl | |
1772 | ||
1773 | ||
1774 | ||
1775 | if((idx<0)||(idx>=fNClusterP)) | |
1776 | { | |
1777 | printf("AliITSClusterFinderSSD::GetPSideCluster : index out of range\n"); | |
1778 | return 0; | |
1779 | } | |
1780 | else | |
1781 | { | |
1782 | return (AliITSclusterSSD*)((*fClusterP)[idx]); | |
1783 | } | |
1784 | } | |
1785 | ||
1786 | //------------------------------------------------------- | |
1787 | AliITSclusterSSD* AliITSClusterFinderSSD::GetNSideCluster(Int_t idx) | |
1788 | { | |
1789 | ||
1790 | ||
1791 | //Piotr Krzysztof Skowronski | |
1792 | //Warsaw University of Technology | |
1793 | //skowron@if.pw.edu.pl | |
1794 | ||
1795 | if((idx<0)||(idx>=fNClusterN)) | |
1796 | { | |
1797 | printf("AliITSClusterFinderSSD::GetNSideCluster : index out of range\n"); | |
1798 | return 0; | |
1799 | } | |
1800 | else | |
1801 | { | |
1802 | return (AliITSclusterSSD*)((*fClusterN)[idx]); | |
1803 | } | |
1804 | } | |
1805 | ||
1806 | //-------------------------------------------------------- | |
1807 | AliITSclusterSSD* AliITSClusterFinderSSD::GetCluster(Int_t idx, Bool_t side) | |
1808 | { | |
1809 | ||
1810 | ||
1811 | //Piotr Krzysztof Skowronski | |
1812 | //Warsaw University of Technology | |
1813 | //skowron@if.pw.edu.pl | |
1814 | ||
1815 | return (side) ? GetPSideCluster(idx) : GetNSideCluster(idx); | |
1816 | } | |
1817 | ||
1818 | ||
1819 | //-------------------------------------------------------- | |
1820 | void AliITSClusterFinderSSD::ConsumeClusters() | |
1821 | { | |
1822 | ||
1823 | Int_t i; | |
1824 | for(i=0;i<fNPackages;i++) | |
1825 | { | |
1826 | ((AliITSpackageSSD*)((*fPackages)[i]))->ConsumeClusters(); | |
1827 | } | |
1828 | ||
1829 | } | |
1830 | ||
1831 | ||
1832 | //-------------------------------------------------------- | |
1833 | void AliITSClusterFinderSSD::ReconstructNotConsumedClusters() | |
1834 | { | |
1835 | Int_t i; | |
1836 | AliITSclusterSSD *cluster; | |
1837 | Float_t pos; | |
1838 | Float_t sig; | |
1839 | Float_t sigerr; | |
1840 | Float_t x1,x2,z1,z2; | |
1841 | ||
1842 | Float_t Dx = fSegmentation->Dx(); | |
1843 | Float_t Dz = fSegmentation->Dz(); | |
1844 | ||
1845 | const Float_t kdEdXtoQ = 2.778e+8; // GeV -> number of e-hole pairs | |
1846 | const Float_t kconv = 1.0e-4; | |
1847 | const Float_t kRMSx = 20.0*kconv; // microns->cm ITS TDR Table 1.3 | |
1848 | const Float_t kRMSz = 830.0*kconv; // microns->cm ITS TDR Table 1.3 | |
1849 | ||
1850 | for(i=0;i<fNClusterP;i++) | |
1851 | { | |
1852 | //printf("P side cluster: cluster number %d\n",i); | |
1853 | cluster = GetPSideCluster(i); | |
1854 | if (!cluster->IsConsumed()) | |
1855 | { | |
1856 | if( (pos = cluster->GetPosition()) < fSFB) | |
1857 | { | |
1858 | sig = cluster->GetTotalSignal(); | |
1859 | ||
be33dccb | 1860 | sig += sig/fPNsignalRatio; |
b0f5e3fc | 1861 | |
1862 | sigerr = cluster->GetTotalSignalError(); | |
1863 | x1 = -Dx/2 + pos *fPitch; | |
1864 | z1 = -Dz/2; | |
1865 | ||
1866 | x2 = pos; | |
1867 | z2 = 1; | |
1868 | GetCrossing (x2,z2); | |
1869 | AliITSRawClusterSSD cnew; | |
1870 | Int_t nstripsP=cluster->GetNumOfDigits(); | |
1871 | cnew.fMultiplicity=nstripsP; | |
1872 | cnew.fMultiplicityN=0; | |
1873 | /* | |
1874 | if (nstripsP > 100) { | |
1875 | printf("multiplicity > 100 - increase the dimension of the arrays %d\n",nstripsP); | |
1876 | nstripsP=100; | |
1877 | } | |
1878 | Int_t k; | |
1879 | for(k=0;k<nstripsP;k++) { | |
1880 | // check if 'clusterP->GetDigitStripNo(i)' returns | |
1881 | // the digit index and not smth else | |
1882 | cnew.fIndexMap[k] = cluster->GetDigitStripNo(k); | |
1883 | } | |
1884 | */ | |
1885 | cnew.fQErr=sigerr; | |
1886 | //cnew.fProbability=0.75; | |
1887 | fITS->AddCluster(2,&cnew); | |
1888 | // add the rec point info | |
1889 | AliITSRecPoint rnew; | |
1890 | rnew.SetX(kconv*(x1+x2)/2); | |
1891 | rnew.SetZ(kconv*(z1+z2)/2); | |
1892 | rnew.SetQ(sig); | |
1893 | rnew.SetdEdX(sig/kdEdXtoQ); | |
1894 | rnew.SetSigmaX2( kRMSx* kRMSx); | |
1895 | rnew.SetSigmaZ2( kRMSz* kRMSz); | |
1896 | rnew.SetProbability(0.75); | |
1897 | fITS->AddRecPoint(rnew); | |
1898 | /* | |
1899 | fPointsM->AddLast( (TObject*) | |
1900 | new AliITSRecPointSSD((x1+x2)/2 ,0,0,0,(z1+z2)/2,0,sig,sigerr,fLayer,fLad,fDet,cluster, 0.75) ); | |
1901 | */ | |
1902 | ||
1903 | if(debug) cout<<"\n"<<": SINGLE SIDE ImpactPoint Created: X = " | |
1904 | <<(x1+x2)/2<<" Z = "<<(z1+z2)/2<<"; Pos = "<<pos; | |
1905 | } | |
1906 | } | |
1907 | } | |
1908 | ||
1909 | for(i=0;i<fNClusterN;i++) | |
1910 | { | |
1911 | // printf("N side cluster: cluster number %d\n",i); | |
1912 | cluster = GetNSideCluster(i); | |
1913 | if (!cluster->IsConsumed()) | |
1914 | { | |
1915 | if( (pos = cluster->GetPosition()) < fSFF) | |
1916 | { | |
1917 | sig = cluster->GetTotalSignal(); | |
1918 | ||
be33dccb | 1919 | sig += sig*fPNsignalRatio; |
b0f5e3fc | 1920 | |
1921 | sigerr = cluster->GetTotalSignalError(); | |
1922 | ||
1923 | x1 = -Dx/2 + pos *fPitch; | |
1924 | z1 = Dz/2; | |
1925 | ||
1926 | x2 = 1; | |
1927 | z2 = pos; | |
1928 | ||
1929 | GetCrossing (x2,z2); | |
1930 | AliITSRawClusterSSD cnew; | |
1931 | Int_t nstripsN=cluster->GetNumOfDigits(); | |
1932 | cnew.fMultiplicity=0; | |
1933 | cnew.fMultiplicityN=nstripsN; | |
1934 | /* | |
1935 | if (nstripsN > 100) { | |
1936 | printf("multiplicity > 100 - increase the dimension of the arrays %d\n",nstripsN); | |
1937 | nstripsN=100; | |
1938 | } | |
1939 | Int_t k; | |
1940 | for(k=0;k<nstripsN;k++) { | |
1941 | // check if 'clusterP->GetDigitStripNo(i)' returns | |
1942 | // the digit index and not smth else | |
1943 | cnew.fIndexMapN[k] = cluster->GetDigitStripNo(k); | |
1944 | } | |
1945 | */ | |
1946 | cnew.fQErr=sigerr; | |
1947 | //cnew.fProbability=0.75; | |
1948 | fITS->AddCluster(2,&cnew); | |
1949 | // add the rec point info | |
1950 | AliITSRecPoint rnew; | |
1951 | rnew.SetX(kconv*(x1+x2)/2); | |
1952 | rnew.SetZ(kconv*(z1+z2)/2); | |
1953 | rnew.SetQ(sig); | |
1954 | rnew.SetdEdX(sig/kdEdXtoQ); | |
1955 | rnew.SetSigmaX2( kRMSx* kRMSx); | |
1956 | rnew.SetSigmaZ2( kRMSz* kRMSz); | |
1957 | rnew.SetProbability(0.75); | |
1958 | fITS->AddRecPoint(rnew); | |
1959 | /* | |
1960 | fPointsM->AddLast( (TObject*) | |
1961 | new AliITSRecPointSSD((x1+x2)/2 ,0,0,0,(z1+z2)/2,0,sig,sigerr,fLayer,fLad,fDet,cluster, 0.75) ); | |
1962 | */ | |
1963 | ||
1964 | if(debug) cout<<"\n"<<": SINGLE SIDE ImpactPoint Created: X = " | |
1965 | <<(x1+x2)/2<<" Z = "<<(z1+z2)/2<<"; Pos = "<<pos; | |
1966 | ||
1967 | } | |
1968 | } | |
1969 | } | |
1970 | ||
1971 | ||
1972 | } | |
1973 | ||
1974 | //_______________________________________________________________________ | |
1975 | ||
1976 | Bool_t AliITSClusterFinderSSD::GetCrossing (Float_t &P, Float_t &N) | |
1977 | { | |
1978 | ||
1979 | Float_t Dx = fSegmentation->Dx(); | |
1980 | Float_t Dz = fSegmentation->Dz(); | |
1981 | ||
1982 | //P==X | |
1983 | //N==Z | |
1984 | ||
1985 | Float_t dx = 0.1; | |
1986 | P *= fPitch; | |
1987 | N *= fPitch; | |
1988 | ||
1989 | //P = (kZ * fTan + N + P)/2.0; // x coordinate | |
1990 | //N = kZ - (P-N)/fTan; // z coordinate | |
1991 | ||
1992 | if(fTanP + fTanN == 0) return kFALSE; | |
1993 | ||
1994 | N = (N - P + fTanN * Dz) / (fTanP + fTanN); // X coordinate | |
1995 | P = P + fTanP * N; // Y coordinate | |
1996 | ||
1997 | P -= Dx/2; | |
1998 | N -= Dz/2; | |
1999 | ||
2000 | // N = -(N - P + kZ/2*(fTanP + fTanN))/(fTanP + fTanN); | |
2001 | // P = (fTanP*(N-kX/2-kZ*fTanN/2) + fTanN*(P-kX/2-kZ*fTanP/2) )/(fTanP + fTanN); | |
2002 | ||
2003 | if ( ( N < -(Dz/2+dx) ) || ( N > (Dz/2+dx) ) ) return kFALSE; | |
2004 | if ( ( P < -(Dx/2+dx) ) || ( P > (Dx/2+dx) ) ) return kFALSE; | |
2005 | ||
2006 | return kTRUE; | |
2007 | } | |
2008 | ||
2009 | ||
2010 | //_________________________________________________________________________ | |
2011 | ||
2012 | void AliITSClusterFinderSSD::GetCrossingError(Float_t& dP, Float_t& dN) | |
2013 | { | |
2014 | Float_t dz, dx; | |
2015 | ||
2016 | dz = TMath::Abs(( dP + dN )*fPitch/(fTanP + fTanN) ); | |
2017 | dx = fPitch*(TMath::Abs(dP*(1 - fTanP/(fTanP + fTanN))) + | |
2018 | TMath::Abs(dN *fTanP/(fTanP + fTanN) )); | |
2019 | ||
2020 | dN = dz; | |
2021 | dP = dx; | |
2022 | } | |
2023 | ||
2024 |