ab48128d |
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 | /* $Id$ */ |
17 | |
18 | //_________________________________________________________________________ |
19 | // RecPoint implementation for EMCAL-EMC |
20 | // An TowerRecPoint is a cluster of digits |
21 | //*-- |
22 | //*-- Author: Dmitri Peressounko (RRC KI & SUBATECH) |
23 | |
24 | |
25 | // --- ROOT system --- |
26 | #include "TPad.h" |
27 | #include "TH2.h" |
28 | #include "TMath.h" |
29 | #include "TCanvas.h" |
30 | |
31 | // --- Standard library --- |
32 | |
33 | #include <iostream.h> |
34 | |
35 | // --- AliRoot header files --- |
36 | |
37 | #include "AliGenerator.h" |
38 | #include "AliEMCALGeometry.h" |
39 | #include "AliEMCALTowerRecPoint.h" |
40 | #include "AliRun.h" |
41 | #include "AliEMCALGetter.h" |
42 | |
43 | ClassImp(AliEMCALTowerRecPoint) |
44 | |
45 | //____________________________________________________________________________ |
46 | AliEMCALTowerRecPoint::AliEMCALTowerRecPoint() : AliEMCALRecPoint() |
47 | { |
48 | // ctor |
49 | |
50 | fMulDigit = 0 ; |
51 | fAmp = 0. ; |
52 | fCoreEnergy = 0 ; |
53 | fEnergyList = 0 ; |
54 | fTime = -1. ; |
55 | fLocPos.SetX(1000000.) ; //Local position should be evaluated |
56 | |
57 | } |
58 | |
59 | //____________________________________________________________________________ |
60 | AliEMCALTowerRecPoint::AliEMCALTowerRecPoint(const char * opt) : AliEMCALRecPoint(opt) |
61 | { |
62 | // ctor |
63 | |
64 | fMulDigit = 0 ; |
65 | fAmp = 0. ; |
66 | fCoreEnergy = 0 ; |
67 | fEnergyList = 0 ; |
68 | fTime = -1. ; |
69 | fLocPos.SetX(1000000.) ; //Local position should be evaluated |
70 | |
71 | } |
72 | |
73 | //____________________________________________________________________________ |
74 | AliEMCALTowerRecPoint::~AliEMCALTowerRecPoint() |
75 | { |
76 | // dtor |
77 | |
78 | if ( fEnergyList ) |
79 | delete[] fEnergyList ; |
80 | } |
81 | |
82 | //____________________________________________________________________________ |
83 | void AliEMCALTowerRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy) |
84 | { |
85 | // Adds a digit to the RecPoint |
86 | // and accumulates the total amplitude and the multiplicity |
87 | |
88 | if(fEnergyList == 0) |
89 | fEnergyList = new Float_t[fMaxDigit]; |
90 | |
91 | if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists |
92 | fMaxDigit*=2 ; |
93 | Int_t * tempo = new ( Int_t[fMaxDigit] ) ; |
94 | Float_t * tempoE = new ( Float_t[fMaxDigit] ) ; |
95 | |
96 | Int_t index ; |
97 | for ( index = 0 ; index < fMulDigit ; index++ ){ |
98 | tempo[index] = fDigitsList[index] ; |
99 | tempoE[index] = fEnergyList[index] ; |
100 | } |
101 | |
102 | delete [] fDigitsList ; |
103 | fDigitsList = new ( Int_t[fMaxDigit] ) ; |
104 | |
105 | delete [] fEnergyList ; |
106 | fEnergyList = new ( Float_t[fMaxDigit] ) ; |
107 | |
108 | for ( index = 0 ; index < fMulDigit ; index++ ){ |
109 | fDigitsList[index] = tempo[index] ; |
110 | fEnergyList[index] = tempoE[index] ; |
111 | } |
112 | |
113 | delete [] tempo ; |
114 | delete [] tempoE ; |
115 | } // if |
116 | |
117 | fDigitsList[fMulDigit] = digit.GetIndexInList() ; |
118 | fEnergyList[fMulDigit] = Energy ; |
119 | fMulDigit++ ; |
120 | fAmp += Energy ; |
121 | |
122 | // EvalEMCALMod(&digit) ; |
123 | } |
124 | |
125 | //____________________________________________________________________________ |
126 | Bool_t AliEMCALTowerRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const |
127 | { |
128 | // Tells if (true) or not (false) two digits are neighbors |
129 | |
130 | Bool_t aren = kFALSE ; |
131 | |
132 | AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
133 | AliEMCALGeometry * phosgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
134 | |
135 | Int_t relid1[4] ; |
136 | phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ; |
137 | |
138 | Int_t relid2[4] ; |
139 | phosgeom->AbsToRelNumbering(digit2->GetId(), relid2) ; |
140 | |
141 | Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ; |
142 | Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ; |
143 | |
144 | if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0)) |
145 | aren = kTRUE ; |
146 | |
147 | return aren ; |
148 | } |
149 | |
150 | //____________________________________________________________________________ |
151 | Int_t AliEMCALTowerRecPoint::Compare(const TObject * obj) const |
152 | { |
153 | // Compares two RecPoints according to their position in the EMCAL modules |
154 | |
155 | Float_t delta = 1 ; //Width of "Sorting row". If you changibg this |
156 | //value (what is senseless) change as vell delta in |
157 | //AliEMCALTrackSegmentMakerv* and other RecPoints... |
158 | Int_t rv ; |
159 | |
160 | AliEMCALTowerRecPoint * clu = (AliEMCALTowerRecPoint *)obj ; |
161 | |
162 | |
163 | Int_t phosmod1 = GetEMCALArm() ; |
164 | Int_t phosmod2 = clu->GetEMCALArm() ; |
165 | |
166 | TVector3 locpos1; |
167 | GetLocalPosition(locpos1) ; |
168 | TVector3 locpos2; |
169 | clu->GetLocalPosition(locpos2) ; |
170 | |
171 | if(phosmod1 == phosmod2 ) { |
172 | Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ; |
173 | if (rowdif> 0) |
174 | rv = 1 ; |
175 | else if(rowdif < 0) |
176 | rv = -1 ; |
177 | else if(locpos1.Z()>locpos2.Z()) |
178 | rv = -1 ; |
179 | else |
180 | rv = 1 ; |
181 | } |
182 | |
183 | else { |
184 | if(phosmod1 < phosmod2 ) |
185 | rv = -1 ; |
186 | else |
187 | rv = 1 ; |
188 | } |
189 | |
190 | return rv ; |
191 | } |
192 | //______________________________________________________________________________ |
193 | void AliEMCALTowerRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const |
194 | { |
195 | |
196 | // Execute action corresponding to one event |
197 | // This member function is called when a AliEMCALRecPoint is clicked with the locator |
198 | // |
199 | // If Left button is clicked on AliEMCALRecPoint, the digits are switched on |
200 | // and switched off when the mouse button is released. |
201 | |
202 | |
203 | // AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
204 | // if(!gime) return ; |
205 | // AliEMCALGeometry * emcalgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
206 | |
207 | // static TGraph * digitgraph = 0 ; |
208 | |
209 | // if (!gPad->IsEditable()) return; |
210 | |
211 | // TH2F * histo = 0 ; |
212 | // TCanvas * histocanvas ; |
213 | |
214 | // const TClonesArray * digits = gime->Digits() ; |
215 | |
216 | // switch (event) { |
217 | |
218 | // case kButton1Down: { |
219 | // AliEMCALDigit * digit ; |
220 | // Int_t iDigit; |
221 | // Int_t relid[4] ; |
222 | |
223 | // const Int_t kMulDigit = AliEMCALTowerRecPoint::GetDigitsMultiplicity() ; |
224 | // Float_t * xi = new Float_t[kMulDigit] ; |
225 | // Float_t * zi = new Float_t[kMulDigit] ; |
226 | |
227 | // // create the histogram for the single cluster |
228 | // // 1. gets histogram boundaries |
229 | // Float_t ximax = -999. ; |
230 | // Float_t zimax = -999. ; |
231 | // Float_t ximin = 999. ; |
232 | // Float_t zimin = 999. ; |
233 | |
234 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { |
235 | // digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; |
236 | // emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
237 | // emcalgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]); |
238 | // if ( xi[iDigit] > ximax ) |
239 | // ximax = xi[iDigit] ; |
240 | // if ( xi[iDigit] < ximin ) |
241 | // ximin = xi[iDigit] ; |
242 | // if ( zi[iDigit] > zimax ) |
243 | // zimax = zi[iDigit] ; |
244 | // if ( zi[iDigit] < zimin ) |
245 | // zimin = zi[iDigit] ; |
246 | // } |
247 | // ximax += emcalgeom->GetCrystalSize(0) / 2. ; |
248 | // zimax += emcalgeom->GetCrystalSize(2) / 2. ; |
249 | // ximin -= emcalgeom->GetCrystalSize(0) / 2. ; |
250 | // zimin -= emcalgeom->GetCrystalSize(2) / 2. ; |
251 | // Int_t xdim = (int)( (ximax - ximin ) / emcalgeom->GetCrystalSize(0) + 0.5 ) ; |
252 | // Int_t zdim = (int)( (zimax - zimin ) / emcalgeom->GetCrystalSize(2) + 0.5 ) ; |
253 | |
254 | // // 2. gets the histogram title |
255 | |
256 | // Text_t title[100] ; |
257 | // sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ; |
258 | |
259 | // if (!histo) { |
260 | // delete histo ; |
261 | // histo = 0 ; |
262 | // } |
263 | // histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ; |
264 | |
265 | // Float_t x, z ; |
266 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { |
267 | // digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; |
268 | // emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
269 | // emcalgeom->RelPosInModule(relid, x, z); |
270 | // histo->Fill(x, z, fEnergyList[iDigit] ) ; |
271 | // } |
272 | |
273 | // if (!digitgraph) { |
274 | // digitgraph = new TGraph(kMulDigit,xi,zi); |
275 | // digitgraph-> SetMarkerStyle(5) ; |
276 | // digitgraph-> SetMarkerSize(1.) ; |
277 | // digitgraph-> SetMarkerColor(1) ; |
278 | // digitgraph-> Paint("P") ; |
279 | // } |
280 | |
281 | // // Print() ; |
282 | // histocanvas = new TCanvas("cluster", "a single cluster", 600, 500) ; |
283 | // histocanvas->Draw() ; |
284 | // histo->Draw("lego1") ; |
285 | |
286 | // delete[] xi ; |
287 | // delete[] zi ; |
288 | |
289 | // break; |
290 | // } |
291 | |
292 | // case kButton1Up: |
293 | // if (digitgraph) { |
294 | // delete digitgraph ; |
295 | // digitgraph = 0 ; |
296 | // } |
297 | // break; |
298 | |
299 | // } |
300 | } |
301 | |
302 | //____________________________________________________________________________ |
303 | void AliEMCALTowerRecPoint::EvalDispersion(Float_t logWeight,TClonesArray * digits) |
304 | { |
305 | // Calculates the dispersion of the shower at the origine of the RecPoint |
306 | |
307 | Float_t d = 0. ; |
308 | Float_t wtot = 0. ; |
309 | |
310 | AliEMCALDigit * digit ; |
311 | |
312 | AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
313 | AliEMCALGeometry * emcalgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
314 | |
315 | |
316 | // Calculates the center of gravity in the local EMCAL-module coordinates |
317 | |
318 | Int_t iDigit; |
319 | Int_t relid[4] ; |
320 | |
321 | if (!fTheta || !fPhi ) { |
322 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
323 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ; |
324 | |
325 | Float_t thetai ; |
326 | Float_t phii ; |
327 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
328 | emcalgeom->PosInAlice(relid, thetai, phii); |
329 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; |
330 | fTheta = fTheta + thetai * w ; |
331 | fPhi += (phii * w ); |
332 | wtot += w ; |
333 | } |
334 | |
335 | fTheta /= wtot ; |
336 | fPhi /= wtot ; |
337 | } |
338 | |
339 | const Float_t kDeg2Rad = TMath::Pi() / static_cast<Double_t>(180) ; |
340 | |
341 | Float_t cyl_radius = emcalgeom->GetIPDistance()+emcalgeom->GetAirGap() ; |
342 | Float_t x = cyl_radius * TMath::Cos(fPhi * kDeg2Rad ) ; |
343 | Float_t y = cyl_radius * TMath::Cos(fPhi * kDeg2Rad ) ; |
344 | Float_t z = cyl_radius * TMath::Tan(fTheta * kDeg2Rad ) ; |
345 | |
346 | // Calculates the dispersion in coordinates |
347 | wtot = 0.; |
348 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { |
349 | digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; |
350 | Float_t thetai = 0. ; |
351 | Float_t phii = 0.; |
352 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
353 | emcalgeom->PosInAlice(relid, thetai, phii); |
354 | Float_t xi = cyl_radius * TMath::Cos(phii * kDeg2Rad ) ; |
355 | Float_t yi = cyl_radius * TMath::Sin(phii * kDeg2Rad ) ; |
356 | Float_t zi = cyl_radius * TMath::Tan(thetai * kDeg2Rad ) ; |
357 | |
358 | Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
359 | d += w*((xi-x)*(xi-x) + (yi-y)*(yi-y)+ (zi-z)*(zi-z) ) ; |
360 | wtot+=w ; |
361 | } |
362 | |
363 | d /= wtot ; |
364 | |
365 | fDispersion = TMath::Sqrt(d) ; |
366 | |
367 | } |
368 | //______________________________________________________________________________ |
369 | void AliEMCALTowerRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits) |
370 | { |
371 | // This function calculates energy in the core, |
372 | // i.e. within a radius rad = 3cm around the center. Beyond this radius |
373 | // in accordance with shower profile the energy deposition |
374 | // should be less than 2% |
375 | |
376 | Float_t coreRadius = 10. ; |
377 | |
378 | AliEMCALDigit * digit ; |
379 | Int_t relid[4] ; |
380 | Float_t wtot = 0. ; |
381 | |
382 | AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
383 | AliEMCALGeometry * emcalgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
384 | |
385 | Int_t iDigit; |
386 | |
387 | if (!fTheta || !fPhi ) { |
388 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
389 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ; |
390 | |
391 | Float_t thetai ; |
392 | Float_t phii ; |
393 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
394 | emcalgeom->PosInAlice(relid, thetai, phii); |
395 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; |
396 | fTheta = fTheta + thetai * w ; |
397 | fPhi += (phii * w ); |
398 | wtot += w ; |
399 | } |
400 | |
401 | fTheta /= wtot ; |
402 | fPhi /= wtot ; |
403 | } |
404 | |
405 | const Float_t kDeg2Rad = TMath::Pi() / static_cast<Double_t>(180) ; |
406 | |
407 | Float_t cyl_radius = emcalgeom->GetIPDistance()+emcalgeom->GetAirGap() ; |
408 | Float_t x = cyl_radius * TMath::Cos(fPhi * kDeg2Rad ) ; |
409 | Float_t y = cyl_radius * TMath::Cos(fPhi * kDeg2Rad ) ; |
410 | Float_t z = cyl_radius * TMath::Tan(fTheta * kDeg2Rad ) ; |
411 | |
412 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { |
413 | digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ; |
414 | Int_t relid[4] ; |
415 | Float_t thetai = 0. ; |
416 | Float_t phii = 0. ; |
417 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
418 | emcalgeom->PosInAlice(relid, thetai, phii); |
419 | |
420 | Float_t xi = cyl_radius * TMath::Cos(phii * kDeg2Rad ) ; |
421 | Float_t yi = cyl_radius * TMath::Sin(phii * kDeg2Rad ) ; |
422 | Float_t zi = cyl_radius * TMath::Tan(thetai * kDeg2Rad ) ; |
423 | |
424 | Float_t distance = TMath::Sqrt((xi-x)*(xi-x)+(yi-y)*(yi-y)+(zi-z)*(zi-z)) ; |
425 | if(distance < coreRadius) |
426 | fCoreEnergy += fEnergyList[iDigit] ; |
427 | } |
428 | |
429 | } |
430 | |
431 | //____________________________________________________________________________ |
432 | void AliEMCALTowerRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits) |
433 | { |
434 | // Calculates the axis of the shower ellipsoid |
435 | |
436 | Double_t wtot = 0. ; |
437 | Double_t x = 0.; |
438 | Double_t z = 0.; |
439 | Double_t dxx = 0.; |
440 | Double_t dzz = 0.; |
441 | Double_t dxz = 0.; |
442 | |
443 | AliEMCALDigit * digit ; |
444 | |
445 | AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
446 | AliEMCALGeometry * emcalgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
447 | |
448 | Int_t iDigit; |
449 | const Float_t kDeg2Rad = TMath::Pi() / static_cast<Double_t>(180) ; |
450 | |
451 | Float_t cyl_radius = emcalgeom->GetIPDistance()+emcalgeom->GetAirGap() ; |
452 | |
453 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
454 | digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; |
455 | Int_t relid[4] ; |
456 | Float_t thetai = 0. ; |
457 | Float_t phii = 0. ; |
458 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
459 | emcalgeom->PosInAlice(relid, thetai, phii); |
460 | Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; |
461 | Float_t xi = cyl_radius * TMath::Cos(fPhi * kDeg2Rad ) ; |
462 | Float_t zi = cyl_radius * TMath::Tan(fTheta * kDeg2Rad ) ; |
463 | dxx += w * xi * xi ; |
464 | x += w * xi ; |
465 | dzz += w * zi * zi ; |
466 | z += w * zi ; |
467 | dxz += w * xi * zi ; |
468 | wtot += w ; |
469 | } |
470 | dxx /= wtot ; |
471 | x /= wtot ; |
472 | dxx -= x * x ; |
473 | dzz /= wtot ; |
474 | z /= wtot ; |
475 | dzz -= z * z ; |
476 | dxz /= wtot ; |
477 | dxz -= x * z ; |
478 | |
479 | // //Apply correction due to non-perpendicular incidence |
480 | // Double_t CosX ; |
481 | // Double_t CosZ ; |
482 | // AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
483 | // AliEMCALGeometry * emcalgeom = (AliEMCALGeometry*)gime->EMCALGeometry(); |
484 | // Double_t DistanceToIP= (Double_t ) emcalgeom->GetIPDistance() ; |
485 | |
486 | // CosX = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+x*x) ; |
487 | // CosZ = DistanceToIP/TMath::Sqrt(DistanceToIP*DistanceToIP+z*z) ; |
488 | |
489 | // dxx = dxx/(CosX*CosX) ; |
490 | // dzz = dzz/(CosZ*CosZ) ; |
491 | // dxz = dxz/(CosX*CosZ) ; |
492 | |
493 | |
494 | fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; |
495 | if(fLambda[0] > 0) |
496 | fLambda[0] = TMath::Sqrt(fLambda[0]) ; |
497 | |
498 | fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; |
499 | if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda. |
500 | fLambda[1] = TMath::Sqrt(fLambda[1]) ; |
501 | else |
502 | fLambda[1]= 0. ; |
503 | } |
504 | |
505 | //____________________________________________________________________________ |
506 | void AliEMCALTowerRecPoint::EvalAll(Float_t logWeight, TClonesArray * digits ) |
507 | { |
508 | // Evaluates all shower parameters |
509 | |
510 | AliEMCALRecPoint::EvalAll(logWeight,digits) ; |
511 | EvalGlobalPosition(logWeight, digits) ; |
512 | EvalElipsAxis(logWeight, digits) ; |
513 | EvalDispersion(logWeight, digits) ; |
514 | EvalCoreEnergy(logWeight, digits); |
515 | EvalTime(digits) ; |
516 | } |
517 | |
518 | //____________________________________________________________________________ |
519 | void AliEMCALTowerRecPoint::EvalGlobalPosition(Float_t logWeight, TClonesArray * digits) |
520 | { |
521 | // Calculates the center of gravity in the local EMCAL-module coordinates |
522 | Float_t wtot = 0. ; |
523 | |
524 | Int_t relid[4] ; |
525 | |
526 | AliEMCALDigit * digit ; |
527 | |
528 | AliEMCALGetter * gime = AliEMCALGetter::GetInstance() ; |
529 | AliEMCALGeometry * emcalgeom = static_cast<AliEMCALGeometry*>(gime->EMCALGeometry()); |
530 | Int_t iDigit; |
531 | |
532 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
533 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ; |
534 | |
535 | Float_t thetai ; |
536 | Float_t phii ; |
537 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; |
538 | emcalgeom->PosInAlice(relid, thetai, phii); |
539 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; |
540 | fTheta = fTheta + thetai * w ; |
541 | fPhi += (phii * w ); |
542 | wtot += w ; |
543 | } |
544 | |
545 | fTheta /= wtot ; |
546 | fPhi /= wtot ; |
547 | |
548 | fLocPos.SetX(0.) ; |
549 | fLocPos.SetY(0.) ; |
550 | fLocPos.SetZ(0.) ; |
551 | |
552 | fLocPosM = 0 ; |
553 | } |
554 | |
555 | //____________________________________________________________________________ |
556 | Float_t AliEMCALTowerRecPoint::GetMaximalEnergy(void) const |
557 | { |
558 | // Finds the maximum energy in the cluster |
559 | |
560 | Float_t menergy = 0. ; |
561 | |
562 | Int_t iDigit; |
563 | |
564 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
565 | |
566 | if(fEnergyList[iDigit] > menergy) |
567 | menergy = fEnergyList[iDigit] ; |
568 | } |
569 | return menergy ; |
570 | } |
571 | |
572 | //____________________________________________________________________________ |
573 | Int_t AliEMCALTowerRecPoint::GetMultiplicityAtLevel(const Float_t H) const |
574 | { |
575 | // Calculates the multiplicity of digits with energy larger than H*energy |
576 | |
577 | Int_t multipl = 0 ; |
578 | Int_t iDigit ; |
579 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
580 | |
581 | if(fEnergyList[iDigit] > H * fAmp) |
582 | multipl++ ; |
583 | } |
584 | return multipl ; |
585 | } |
586 | |
587 | //____________________________________________________________________________ |
588 | Int_t AliEMCALTowerRecPoint::GetNumberOfLocalMax(Int_t * maxAt, Float_t * maxAtEnergy, |
589 | Float_t locMaxCut,TClonesArray * digits) const |
590 | { |
591 | // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum |
592 | // energy difference between two local maxima |
593 | |
594 | AliEMCALDigit * digit ; |
595 | AliEMCALDigit * digitN ; |
596 | |
597 | |
598 | Int_t iDigitN ; |
599 | Int_t iDigit ; |
600 | |
601 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) |
602 | maxAt[iDigit] = (Int_t) digits->At(fDigitsList[iDigit]) ; |
603 | |
604 | |
605 | for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) { |
606 | if(maxAt[iDigit] != -1) { |
607 | digit = (AliEMCALDigit *) maxAt[iDigit] ; |
608 | |
609 | for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) { |
610 | digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ; |
611 | |
612 | if ( AreNeighbours(digit, digitN) ) { |
613 | if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) { |
614 | maxAt[iDigitN] = -1 ; |
615 | // but may be digit too is not local max ? |
616 | if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut) |
617 | maxAt[iDigit] = -1 ; |
618 | } |
619 | else { |
620 | maxAt[iDigit] = -1 ; |
621 | // but may be digitN too is not local max ? |
622 | if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut) |
623 | maxAt[iDigitN] = -1 ; |
624 | } |
625 | } // if Areneighbours |
626 | } // while digitN |
627 | } // slot not empty |
628 | } // while digit |
629 | |
630 | iDigitN = 0 ; |
631 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) { |
632 | if(maxAt[iDigit] != -1){ |
633 | maxAt[iDigitN] = maxAt[iDigit] ; |
634 | maxAtEnergy[iDigitN] = fEnergyList[iDigit] ; |
635 | iDigitN++ ; |
636 | } |
637 | } |
638 | return iDigitN ; |
639 | } |
640 | //____________________________________________________________________________ |
641 | void AliEMCALTowerRecPoint::EvalTime(TClonesArray * digits){ |
642 | |
643 | Float_t maxE = 0; |
644 | Int_t maxAt = 0; |
645 | for(Int_t idig=0; idig < fMulDigit; idig++){ |
646 | if(fEnergyList[idig] > maxE){ |
647 | maxE = fEnergyList[idig] ; |
648 | maxAt = idig; |
649 | } |
650 | } |
651 | fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ; |
652 | |
653 | } |
654 | //____________________________________________________________________________ |
655 | void AliEMCALTowerRecPoint::Print(Option_t * option) |
656 | { |
657 | // Print the list of digits belonging to the cluster |
658 | |
659 | cout << "AliEMCALTowerRecPoint: " << endl ; |
660 | |
661 | Int_t iDigit; |
662 | cout << " digits # = " ; |
663 | for(iDigit=0; iDigit<fMulDigit; iDigit++) |
664 | cout << fDigitsList[iDigit] << " " ; |
665 | cout << endl ; |
666 | |
667 | cout << " Energies = " ; |
668 | for(iDigit=0; iDigit<fMulDigit; iDigit++) |
669 | cout << fEnergyList[iDigit] << " "; |
670 | cout << endl ; |
671 | |
672 | cout << " Primaries " ; |
673 | for(iDigit = 0;iDigit < fMulTrack; iDigit++) |
674 | cout << fTracksList[iDigit] << " " << endl ; |
675 | |
676 | cout << " Multiplicity = " << fMulDigit << endl ; |
677 | cout << " Cluster Energy = " << fAmp << endl ; |
678 | cout << " Number of primaries " << fMulTrack << endl ; |
679 | cout << " Stored at position " << GetIndexInList() << endl ; |
680 | |
681 | } |
682 | |