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4a01bb2c | 1 | /************************************************************************** |
2 | * Copyright(c) 2001-2002, 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 | /* $Id: AliJetGrid.cxx,v 1.0 07/09/2006 */ | |
17 | ||
18 | //========================================================================= | |
19 | // *** 07 September 2006 | |
20 | // This class allows to fill a really general grid in (eta,phi) | |
21 | // Two types of grid can be setted : | |
22 | // if fGrid==0 -> the complete acceptance of a rectangular detector acceptance is filled | |
23 | // if fGrid==1 -> the previous grid - an other rectangular detector acceptance is filled | |
24 | // A (eta,phi(rad)) position can be extracted from an index value without looping over all entries | |
25 | // An index position can be extracted from a (eta,phi(rad)) position without looping over all entries | |
26 | // | |
27 | // How to run it : | |
28 | // > AliJetGrid *grid = new AliJetGrid((NbinPhi-1),(NbinEta-1),PhiMin,PhiMax,EtaMin,EtaMax); | |
29 | // > grid->SetGridType(...); // 0 or 1 for the moment | |
30 | // > grid->SetMatrixIndexes(); | |
31 | // > grid->SetIndexIJ(); | |
32 | // | |
33 | // Author : magali.estienne@ires.in2p3.fr | |
34 | //========================================================================= | |
35 | ||
36 | // Standard headers | |
37 | #include <Riostream.h> | |
38 | // Root headers | |
39 | #include <TMatrixD.h> | |
40 | #include <TArrayD.h> | |
41 | #include <TArrayI.h> | |
42 | // AliRoot headers | |
43 | #include "AliJetGrid.h" | |
44 | ||
45 | ClassImp(AliJetGrid) | |
46 | ||
47 | //__________________________________________________________ | |
48 | AliJetGrid::AliJetGrid() { | |
49 | ||
50 | // Default constructor | |
51 | ||
52 | fNphi = 0; | |
53 | fNeta = 0; | |
54 | fPhi = 0; | |
55 | fEta = 0; | |
56 | fIndex = 0x0; | |
57 | fPhiMin = 0.; // acceptance removed inside | |
58 | fPhiMax = 0.; // acceptance removed inside | |
59 | fEtaMin = 0.; // acceptance removed inside | |
60 | fEtaMax = 0.; // acceptance removed inside | |
61 | fMinPhi = 0.; // total acceptance | |
62 | fMaxPhi = 0.; // total acceptance | |
63 | fMinEta = 0.; // total acceptance | |
64 | fMaxEta = 0.; // total acceptance | |
65 | fEtaBinInTPCAcc = 0; | |
66 | fPhiBinInTPCAcc = 0; | |
67 | fEtaBinInEMCalAcc = 0; | |
68 | fPhiBinInEMCalAcc = 0; | |
69 | fNbinPhi = 0; | |
70 | ||
71 | fDebug = 1; | |
72 | } | |
73 | ||
74 | //__________________________________________________________ | |
75 | AliJetGrid::AliJetGrid(Int_t nphi,Int_t neta,Double_t phiMin,Double_t phiMax,Double_t etaMin,Double_t etaMax) { | |
76 | ||
77 | // Standard constructor | |
78 | ||
79 | fNphi = nphi; | |
80 | fNeta = neta; | |
81 | fPhiMin = 0.; // rad - acceptance removed inside | |
82 | fPhiMax = 0.; // rad - acceptance removed inside | |
83 | fEtaMin = 0.; // acceptance removed inside | |
84 | fEtaMax = 0.; // acceptance removed inside | |
85 | fNbinPhi = 0; | |
86 | ||
87 | fMaxPhi = phiMax; // total acceptance | |
88 | fMinPhi = phiMin; // total acceptance | |
89 | fMaxEta = etaMax; // total acceptance | |
90 | fMinEta = etaMin; // total acceptance | |
91 | ||
92 | fPhi = new TArrayD(fNphi+1); | |
93 | fEta = new TArrayD(fNeta+1); | |
94 | fIndexI = new TArrayI((fNeta+1)*(fNphi+1)+1); | |
95 | fIndexJ = new TArrayI((fNeta+1)*(fNphi+1)+1); | |
96 | ||
97 | for(Int_t i=0; i<fNphi+1; i++) (*fPhi)[i] = (phiMax-phiMin)/fNphi*i+phiMin; | |
98 | for(Int_t i=0; i<fNeta+1; i++) (*fEta)[i] = (etaMax-etaMin)/fNeta*i+etaMin; | |
99 | ||
100 | if(fDebug > 3){ | |
101 | for(Int_t i=0; i<(fNphi+1); i++) cout << (*fPhi)[i] << endl; | |
102 | for(Int_t i=0; i<(fNeta+1); i++) cout << (*fEta)[i] << endl; | |
103 | } | |
104 | ||
105 | fIndex = new TMatrixD(fNphi+1,fNeta+1); | |
106 | ||
107 | } | |
108 | ||
109 | //__________________________________________________________ | |
110 | AliJetGrid::AliJetGrid(const AliJetGrid& grid):TNamed(grid) { | |
111 | ||
112 | // Copy constructor | |
113 | ||
114 | fNphi = grid.fNphi; | |
115 | fNeta = grid.fNeta; | |
116 | fPhiMin = grid.fPhiMin; | |
117 | fPhiMax = grid.fPhiMax; | |
118 | fEtaMin = grid.fEtaMin; | |
119 | fEtaMax = grid.fEtaMax; | |
120 | fEtaBinInTPCAcc = grid.fEtaBinInTPCAcc; | |
121 | fPhiBinInTPCAcc = grid.fPhiBinInTPCAcc; | |
122 | fEtaBinInEMCalAcc = grid.fEtaBinInEMCalAcc; | |
123 | fPhiBinInEMCalAcc = grid.fPhiBinInEMCalAcc; | |
124 | fNbinPhi = grid.fNbinPhi; | |
125 | fMaxPhi = grid.fMaxPhi; | |
126 | fMinPhi = grid.fMinPhi; | |
127 | fMaxEta = grid.fMaxEta; | |
128 | fMinEta = grid.fMinEta; | |
129 | ||
130 | fPhi = new TArrayD(fNphi+1); | |
131 | for(Int_t i=0; i<fNphi+1; i++) (*fPhi)[i] = grid.fPhi->At(i); | |
132 | fEta = new TArrayD(fNeta+1); | |
133 | for(Int_t i=0; i<fNeta+1; i++) (*fEta)[i] = grid.fEta->At(i); | |
134 | ||
135 | fIndex = new TMatrixD(fNphi+1,fNeta+1); | |
136 | for(Int_t i=0; i<fNphi+1; i++) { | |
137 | for(Int_t j=0; j<fNeta+1; j++) (*fIndex)(i,j)=(*grid.fIndex)(i,j); | |
138 | } | |
139 | } | |
140 | ||
141 | //__________________________________________________________ | |
142 | AliJetGrid::~AliJetGrid() { | |
143 | ||
144 | // Destructor | |
145 | delete fPhi; | |
146 | delete fEta; | |
147 | delete fIndexI; | |
148 | delete fIndexJ; | |
149 | delete fIndex; | |
150 | } | |
151 | ||
152 | //__________________________________________________________ | |
153 | void AliJetGrid::InitParams(Double_t phiMinCal,Double_t phiMaxCal,Double_t etaMinCal,Double_t etaMaxCal) | |
154 | { // To set initial parameters | |
155 | ||
156 | fPhiMin = phiMinCal; // rad | |
157 | fPhiMax = phiMaxCal; // rad | |
158 | fEtaMin = etaMinCal; | |
159 | fEtaMax = etaMaxCal; | |
160 | fNbinPhi = static_cast<int>(fPhiMin/(2*TMath::Pi()/fNphi)); | |
161 | ||
162 | // Define some binning numbers | |
163 | if(fGrid==0){ | |
164 | for(Int_t i=0; i<fNphi+1; i++) fPhiBinInTPCAcc++; | |
165 | fPhiBinInEMCalAcc = 0; | |
166 | ||
167 | for(Int_t i=0; i<fNeta+1; i++) fEtaBinInTPCAcc++; | |
168 | fEtaBinInEMCalAcc = 0; | |
169 | } | |
170 | ||
171 | if(fGrid==1){ | |
172 | for(Int_t i=0; i<fNphi+1; i++) { | |
173 | fPhiBinInTPCAcc++; | |
174 | if(fPhi->At(i) >= fPhiMin && | |
175 | fPhi->At(i) <= fPhiMax) | |
176 | fPhiBinInEMCalAcc++; | |
177 | } | |
178 | for(Int_t i=0; i<fNeta+1; i++) { | |
179 | fEtaBinInTPCAcc++; | |
180 | if((fEta->At(i) >= fEtaMin) && | |
181 | (fEta->At(i) <= fEtaMax)) | |
182 | fEtaBinInEMCalAcc++; | |
183 | } | |
184 | } | |
185 | ||
186 | } | |
187 | ||
188 | //__________________________________________________________ | |
189 | TArrayD* AliJetGrid::GetArrayEta() | |
190 | { // Returns an array with the eta points | |
191 | ||
192 | return fEta; | |
193 | ||
194 | } | |
195 | ||
196 | //__________________________________________________________ | |
197 | TArrayD* AliJetGrid::GetArrayPhi() | |
198 | { // Returns an array with the phi points | |
199 | ||
200 | return fPhi; | |
201 | ||
202 | } | |
203 | ||
204 | //__________________________________________________________ | |
205 | TMatrixD* AliJetGrid::GetIndexObject() | |
206 | { // Returns a pointer to the matrix | |
207 | ||
208 | return fIndex; | |
209 | ||
210 | } | |
211 | ||
212 | //__________________________________________________________ | |
213 | void AliJetGrid::GetAccParam(Int_t &nphi, Int_t &neta, Float_t &minphi, Float_t &maxphi, | |
214 | Float_t &mineta, Float_t &maxeta) | |
215 | { // Returns EMCAL acceptance initially setted | |
216 | ||
217 | nphi = fNphi; | |
218 | neta = fNeta; | |
219 | minphi = fPhiMin; | |
220 | maxphi = fPhiMax; | |
221 | mineta = fEtaMin; | |
222 | maxeta = fEtaMax; | |
223 | } | |
224 | ||
225 | //__________________________________________________________ | |
226 | void AliJetGrid::GetBinParam(Int_t &phibintpc, Int_t &etabintpc, | |
227 | Int_t &phibinemc, Int_t &etabinemc, Int_t &nbinphi) | |
228 | { // Returns number of bins in TPC and EMCAL geometry | |
229 | ||
230 | etabintpc = fEtaBinInTPCAcc; | |
231 | phibintpc = fPhiBinInTPCAcc; | |
232 | etabinemc = fEtaBinInEMCalAcc; | |
233 | phibinemc = fPhiBinInEMCalAcc; | |
234 | nbinphi = fNbinPhi; | |
235 | } | |
236 | ||
237 | //__________________________________________________________ | |
238 | Int_t AliJetGrid::GetIndexFromEtaPhi(Double_t phi,Double_t eta) const | |
239 | { // Tells the index value of a corresponding (eta,phi) real position | |
240 | // Loop over all entries -> takes time. | |
241 | // Used one time at the begining to fill the grids | |
242 | ||
243 | /* this is how bins are numbered | |
244 | ||
245 | in all TPC or in TPC - EMCAL | |
246 | ... ... ... .. | |
247 | --------------- | |
248 | ... ... . 10 | | | 11 | |
249 | ---+---+--- --------------- | |
250 | ^ 6 | 7 | 8 or 8 | | | 9 | |
251 | | ---+---+--- --------------- | |
252 | 3 | 4 | 5 4 | 5 | 6 | 7 | |
253 | phi ---+---+--- --------------- | |
254 | 0 | 1 | 2 0 | 1 | 2 | 3 | |
255 | ||
256 | ||
257 | eta -> | |
258 | */ | |
259 | ||
260 | Int_t etaBin=0,phiBin=0,absID=0; | |
261 | Int_t etaBin2=0,etaBin3=0; | |
262 | ||
263 | // Fill all the grid in eta/phi (all TPC acceptance) | |
264 | //----------------------------------------------------- | |
265 | if(fGrid==0){ | |
266 | if(eta <= fEta->At(0)) { | |
267 | etaBin = 0; | |
268 | } else if(eta >= fEta->At(fNeta)) { | |
269 | etaBin = fNeta; | |
270 | } else { | |
271 | for(Int_t i=0; i<fNeta+1; i++) { | |
272 | if(eta < fEta->At(i)) { | |
273 | etaBin = i-1; | |
274 | break; | |
275 | } | |
276 | } | |
277 | } | |
278 | if(phi <= fPhi->At(0)) { | |
279 | phiBin = 0; | |
280 | } else if(phi >= fPhi->At(fNphi)) { | |
281 | phiBin = fNphi; | |
282 | } else { | |
283 | for(Int_t i=0; i<fNphi+1; i++) { | |
284 | if(phi < fPhi->At(i)) { | |
285 | phiBin = i-1; | |
286 | break; | |
287 | } | |
288 | } | |
289 | } | |
290 | ||
291 | // Calculate absolute id | |
292 | absID = phiBin*(fNeta+1) + etaBin; | |
293 | ||
294 | } | |
295 | ||
296 | // Fill the grid but do not count id in EMCal acceptance | |
297 | //------------------------------------------------------ | |
298 | if((eta >= fEtaMin && eta <= fEtaMax) && | |
299 | (phi >= fPhiMin && phi <= fPhiMax)){ | |
300 | etaBin = etaBin2 = etaBin3 = -1; | |
301 | phiBin = -1; | |
302 | } | |
303 | ||
304 | if(fGrid == 1){ | |
305 | if(phi<fPhiMin) { | |
306 | if(eta <= fEta->At(0)) { | |
307 | etaBin = 0; | |
308 | } else if(eta >= fEta->At(fNeta)) { | |
309 | etaBin = fNeta; | |
310 | } else { | |
311 | for(Int_t i=0; i<fNeta+1; i++) { | |
312 | if(eta < fEta->At(i)) { | |
313 | etaBin = i-1; | |
314 | break; | |
315 | } | |
316 | } | |
317 | } | |
318 | } | |
319 | else { | |
320 | if((phi>=fPhiMin) && (phi<=fPhiMax)) { | |
321 | if(eta <= fEta->At(0)) { | |
322 | etaBin2 = 0; | |
323 | } else if(eta >= fEta->At(fNeta)) { | |
324 | etaBin2 = fNeta-fEtaBinInEMCalAcc; | |
325 | } else { | |
326 | for(Int_t i=0; i<fNeta+1; i++) { | |
327 | if(eta < fEta->At(i) && ((fEta->At(0)<eta && eta<fEtaMin) || | |
328 | (fEtaMax<eta && eta<fEta->At(fNeta)))) { | |
329 | // cout << "i : " << i << endl; | |
330 | if(eta<fEtaMin) | |
331 | etaBin2 = i-1; | |
332 | else etaBin2 = i-1-fEtaBinInEMCalAcc; | |
333 | break; | |
334 | } | |
335 | } | |
336 | } | |
337 | } | |
338 | else { | |
339 | if(eta <= fEta->At(0)) { | |
340 | etaBin3 = 0; | |
341 | } else if(eta >= fEta->At(fNeta)) { | |
342 | etaBin3 = fNeta; | |
343 | } else { | |
344 | for(Int_t i=0; i<fNeta+1; i++) { | |
345 | if(eta < fEta->At(i)) { | |
346 | etaBin3 = i-1; | |
347 | break; | |
348 | } | |
349 | } | |
350 | } | |
351 | } | |
352 | } | |
353 | ||
354 | if(phi <= fPhi->At(0)) { | |
355 | phiBin = 0; | |
356 | } else if(phi >= fPhi->At(fNphi)) { | |
357 | phiBin = fNphi; | |
358 | } else { | |
359 | for(Int_t i=0; i<fNphi+1; i++) { | |
360 | if(phi < fPhi->At(i)) { | |
361 | phiBin = i-1; | |
362 | break; | |
363 | } | |
364 | } | |
365 | } | |
366 | ||
367 | // Calculate absID | |
368 | //------------------------------------------------------- | |
369 | if(phi<fPhiMin) | |
370 | absID = phiBin*(fNeta+1) + etaBin; | |
371 | if(phi>=fPhiMin && phi<=fPhiMax) { | |
372 | if(eta >= fEtaMin && eta <= fEtaMax) absID = -1; | |
373 | else{ | |
374 | absID = (fNbinPhi+1)*(fNeta+1) | |
375 | + (phiBin-fNbinPhi-1)*((fEtaBinInTPCAcc-fEtaBinInEMCalAcc)) | |
376 | + etaBin2; | |
377 | } | |
378 | } | |
379 | if(phi>fPhiMax) | |
380 | absID = (fNbinPhi+1)*(fNeta+1) | |
381 | + fPhiBinInEMCalAcc*((fEtaBinInTPCAcc-fEtaBinInEMCalAcc)) | |
382 | + (phiBin-(fNbinPhi+1+fPhiBinInEMCalAcc))*(fNeta+1) | |
383 | + etaBin3; | |
384 | ||
385 | } // END OPTION==1 | |
386 | ||
387 | return absID; | |
388 | ||
389 | } | |
390 | ||
391 | //__________________________________________________________ | |
392 | void AliJetGrid::GetEtaPhiFromIndex(Int_t index, Float_t &eta, Float_t &phi) | |
393 | { // Get (eta,phi) position for a given index BUT loop over all entries (takes time) | |
394 | ||
395 | for(Int_t j=0; j<fNphi+1; j++) { | |
396 | for(Int_t i=0; i<fNeta+1; i++) { | |
397 | ||
398 | // TPC grid only | |
399 | //------------------------------------- | |
400 | if(fGrid==0) { | |
401 | if(j*(fNeta+1)+i == index) { | |
402 | eta = fEta->At(i); | |
403 | phi = fPhi->At(j); | |
404 | } | |
405 | } | |
406 | ||
407 | // TPC-EMCAL grid | |
408 | //------------------------------------- | |
409 | Int_t ii = 0; | |
410 | if(i==0) ii = 0; | |
411 | if(i>0 && i<(fEtaBinInTPCAcc-fEtaBinInEMCalAcc)/2) ii = i; | |
412 | if(i>=(fEtaBinInTPCAcc+fEtaBinInEMCalAcc)/2 && i<fNeta+1) ii = i-fEtaBinInEMCalAcc; | |
413 | ||
414 | if(fGrid==1) { | |
415 | if(j<(fNbinPhi+1) && j*(fNeta+1)+i == index) { | |
416 | eta = fEta->At(i); | |
417 | phi = fPhi->At(j); | |
418 | } | |
419 | ||
420 | if((j>=(fNbinPhi+1) && j<(fNbinPhi+1+fPhiBinInEMCalAcc)) && | |
421 | ((fNbinPhi+1)*(fNeta+1) + (j-fNbinPhi-1)*(fEtaBinInTPCAcc-fEtaBinInEMCalAcc) + ii)== index ) { | |
422 | if(ii==0) {Int_t ind = 0; eta = fEta->At(ind);} | |
423 | else eta = fEta->At(i); | |
424 | phi = fPhi->At(j); | |
425 | } | |
426 | ||
427 | if(j>=(fNbinPhi+1+fPhiBinInEMCalAcc) && | |
428 | ((fNbinPhi+1)*(fNeta+1)+fPhiBinInEMCalAcc*((fEtaBinInTPCAcc-fEtaBinInEMCalAcc)) | |
429 | +(j-(fNbinPhi+1+fPhiBinInEMCalAcc))*(fNeta+1)+i == index)) { | |
430 | eta = fEta->At(i); | |
431 | phi = fPhi->At(j); | |
432 | } | |
433 | } | |
434 | } | |
435 | } | |
436 | } | |
437 | ||
438 | //__________________________________________________________ | |
439 | Int_t AliJetGrid::GetIndex(Double_t phi, Double_t eta) | |
440 | { // Get index value for a (eta,phi) position - Direct value | |
441 | ||
442 | Int_t ieta = GetIndexJFromEta(eta); | |
443 | Int_t iphi = GetIndexIFromPhi(phi); | |
444 | ||
445 | Int_t index = GetMatrixIndex(iphi,ieta); | |
446 | ||
447 | if(fDebug>10){ | |
448 | cout << "(phi,eta) : " << phi << ", " << eta << endl; | |
449 | cout << "index : " << index << endl; | |
450 | } | |
451 | return index; | |
452 | ||
453 | } | |
454 | ||
455 | //__________________________________________________________ | |
456 | Int_t AliJetGrid::GetIndexJFromEta(Double_t eta) | |
457 | { // Get eta id | |
458 | // Eta discretized | |
459 | ||
460 | Int_t idEta =0; | |
461 | Double_t temp = (eta+fMaxEta)/(fMaxEta-fMinEta)*fNeta; | |
462 | if(fDebug>20) | |
463 | { | |
464 | cout << "eta : " << eta << endl; | |
465 | cout << "fMaxEta : " << fMaxEta << endl; | |
466 | cout << "fMinEta : " << fMinEta << endl; | |
467 | cout << "fNeta : " << fNeta << endl; | |
468 | cout << "temp eta before cast : " << temp << endl; | |
469 | } | |
470 | idEta = static_cast<Int_t>(temp+0.5); | |
471 | if(fDebug>20) cout << "temp eta after cast : " << idEta << endl; | |
472 | return idEta; | |
473 | } | |
474 | //__________________________________________________________ | |
475 | Int_t AliJetGrid::GetIndexIFromPhi(Double_t phi) | |
476 | { // Get phi id | |
477 | // Phi discretized | |
478 | ||
479 | Int_t idPhi = 0; | |
480 | Double_t temp = 0.; | |
481 | if(fMinPhi==0) temp = phi/(fMaxPhi-fMinPhi)*fNphi; | |
482 | else temp = (phi-fMinPhi)/(fMaxPhi-fMinPhi)*fNphi; | |
483 | ||
484 | if(fDebug>20) | |
485 | { | |
486 | cout << "phi : " << phi << endl; | |
487 | cout << "fMaxPhi : " << fMaxPhi << endl; | |
488 | cout << "fMinPhi : " << fMinPhi << endl; | |
489 | cout << "fNphi : " << fNphi << endl; | |
490 | cout << "temp phi before cast : " << temp << endl; | |
491 | } | |
492 | idPhi = static_cast<Int_t>(temp+0.5); | |
493 | if(fDebug>20) cout << "temp phi after cast : " << idPhi << endl; | |
494 | return idPhi; | |
495 | ||
496 | ||
497 | } | |
498 | ||
499 | //__________________________________________________________ | |
500 | void AliJetGrid::SetMatrixIndex(Int_t i,Double_t par) | |
501 | { // Allows to set parameters using only one index (if fGrid==0) !! | |
502 | // Not used ! | |
503 | ||
504 | Int_t iphi = (Int_t)i/fNeta; | |
505 | Int_t ieta = i-iphi*fNeta; | |
506 | SetMatrixIndex(iphi,ieta,par); | |
507 | ||
508 | return; | |
509 | } | |
510 | ||
511 | //__________________________________________________________ | |
512 | void AliJetGrid::SetMatrixIndexes() | |
513 | { // Fill the final matrix object with the corresponding index in eta/phi | |
514 | ||
515 | for(Int_t i=0; i<fNphi+1; i++){ | |
516 | for(Int_t j=0; j<fNeta+1; j++){ | |
517 | (*fIndex)(i,j) = GetIndexFromEtaPhi(fPhi->At(i),fEta->At(j))+1; | |
518 | if(fDebug>2){ | |
519 | cout << "(*fIndex)(" << i << "," << j << ") : " << (*fIndex)(i,j) << | |
520 | ", phi : " << fPhi->At(i) << ", eta : " << fEta->At(j) << endl; | |
521 | } | |
522 | } | |
523 | } | |
524 | printf("##########################################################\n"); | |
525 | printf("TMatrix object filled !\n"); | |
526 | printf("Size of the object : phi x eta = (fNphi+1) x (fNeta+1) = %d\n",(fNphi+1)*(fNeta+1)); | |
527 | printf("##########################################################\n"); | |
528 | } | |
529 | ||
530 | //__________________________________________________________ | |
531 | void AliJetGrid::SetIndexIJ() | |
532 | { // | |
533 | ||
534 | for(Int_t i=0; i<fNphi+1; i++){ | |
535 | for(Int_t j=0; j<fNeta+1; j++){ | |
536 | Int_t id = static_cast<Int_t>((*fIndex)(i,j)); | |
537 | ||
538 | if(id!=-1) | |
539 | { | |
540 | (*fIndexI)[id] = i; | |
541 | (*fIndexJ)[id] = j; | |
542 | } | |
543 | } | |
544 | } | |
545 | ||
546 | printf("##########################################################\n"); | |
547 | printf(" In SetIndexIJ - Grid indexes setted !\n"); | |
548 | printf("##########################################################\n"); | |
549 | } | |
550 | ||
551 | //__________________________________________________________ | |
552 | void AliJetGrid::GetIJFromIndex(Int_t index, Int_t i, Int_t j) | |
553 | { // returns i position id of eta and j position id of phi for a given grid index | |
554 | i = (*fIndexI)[index]; | |
555 | j = (*fIndexJ)[index]; | |
556 | } | |
557 | ||
558 | //__________________________________________________________ | |
559 | void AliJetGrid::GetEtaPhiFromIndex2(Int_t index, Float_t &phi, Float_t &eta) | |
560 | { // returns eta, phi values for a given grid index | |
561 | ||
562 | phi = fPhi->At((*fIndexI)[index]); | |
563 | eta = fEta->At((*fIndexJ)[index]); | |
564 | } | |
565 | ||
566 | //__________________________________________________________ | |
567 | Int_t AliJetGrid::GetNEntries() | |
568 | { // Returns the number of entries of the grid | |
569 | ||
570 | if(fDebug>20){ | |
571 | cout << "fMaxPhi : " << fMaxPhi << endl; | |
572 | cout << "fMaxEta : " << fMaxEta << endl; | |
573 | } | |
574 | ||
575 | Int_t indexNum = GetIndex(fMaxPhi,fMaxEta); | |
576 | if(fDebug>20) cout << "indexNum : " << indexNum << endl; | |
577 | return indexNum; | |
578 | ||
579 | } | |
580 | ||
581 | //__________________________________________________________ | |
582 | Int_t AliJetGrid::GetNEntries2() | |
583 | { // Returns the number of entries of the grid | |
584 | ||
585 | Int_t indexNum = GetIndex(fMaxPhi-1.,fMaxEta-0.5); | |
586 | if(fDebug>20) cout << "indexNum : " << indexNum << endl; | |
587 | return indexNum; | |
588 | ||
589 | } | |
590 | ||
591 | ||
592 | ||
593 | ||
594 | ||
595 |