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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 | /* $Id$ */ | |
16 | //_________________________________________________________________________ | |
70a93198 | 17 | // Reconstructed Points for the EMCAL |
18 | // A RecPoint is a cluster of digits | |
d64c959b | 19 | //*-- Author: Yves Schutz (SUBATECH) |
70a93198 | 20 | //*-- Author: Dmitri Peressounko (RRC KI & SUBATECH) |
21 | //*-- Author: Heather Gray (LBL) merged AliEMCALRecPoint and AliEMCALTowerRecPoint 02/04 | |
ab48128d | 22 | |
23 | // --- ROOT system --- | |
24 | #include "TPad.h" | |
d64c959b | 25 | #include "TGraph.h" |
26 | #include "TPaveText.h" | |
ab48128d | 27 | #include "TClonesArray.h" |
70a93198 | 28 | #include "TMath.h" |
ab48128d | 29 | |
30 | // --- Standard library --- | |
ab48128d | 31 | |
32 | // --- AliRoot header files --- | |
70a93198 | 33 | #include "AliGenerator.h" |
ab48128d | 34 | #include "AliEMCALGeometry.h" |
35 | #include "AliEMCALDigit.h" | |
36 | #include "AliEMCALRecPoint.h" | |
37 | #include "AliEMCALGetter.h" | |
38 | ||
39 | ClassImp(AliEMCALRecPoint) | |
40 | ||
41 | ||
42 | //____________________________________________________________________________ | |
43 | AliEMCALRecPoint::AliEMCALRecPoint() | |
44 | : AliRecPoint() | |
45 | { | |
46 | // ctor | |
692088ae | 47 | fMaxTrack = 0 ; |
70a93198 | 48 | fMulDigit = 0 ; |
49 | fAmp = 0. ; | |
50 | fCoreEnergy = 0 ; | |
51 | fEnergyList = 0 ; | |
52 | fTime = 0. ; | |
53 | fLocPos.SetX(0.) ; //Local position should be evaluated | |
54 | fCoreRadius = 10; //HG Check this | |
ab48128d | 55 | } |
56 | ||
57 | //____________________________________________________________________________ | |
58 | AliEMCALRecPoint::AliEMCALRecPoint(const char * opt) : AliRecPoint(opt) | |
59 | { | |
60 | // ctor | |
ab48128d | 61 | fMaxTrack = 200 ; |
70a93198 | 62 | fMulDigit = 0 ; |
63 | fAmp = 0. ; | |
64 | fCoreEnergy = 0 ; | |
65 | fEnergyList = 0 ; | |
66 | fTime = -1. ; | |
67 | fLocPos.SetX(1000000.) ; //Local position should be evaluated | |
68 | fCoreRadius = 10; //HG Check this | |
69 | } | |
70 | //____________________________________________________________________________ | |
71 | AliEMCALRecPoint::~AliEMCALRecPoint() | |
72 | { | |
73 | // dtor | |
74 | if ( fEnergyList ) | |
75 | delete[] fEnergyList ; | |
76 | } | |
77 | ||
78 | //____________________________________________________________________________ | |
79 | void AliEMCALRecPoint::AddDigit(AliEMCALDigit & digit, Float_t Energy) | |
80 | { | |
81 | // Adds a digit to the RecPoint | |
82 | // and accumulates the total amplitude and the multiplicity | |
83 | ||
84 | if(fEnergyList == 0) | |
85 | fEnergyList = new Float_t[fMaxDigit]; | |
86 | ||
87 | if ( fMulDigit >= fMaxDigit ) { // increase the size of the lists | |
88 | fMaxDigit*=2 ; | |
89 | Int_t * tempo = new ( Int_t[fMaxDigit] ) ; | |
90 | Float_t * tempoE = new ( Float_t[fMaxDigit] ) ; | |
91 | ||
92 | Int_t index ; | |
93 | for ( index = 0 ; index < fMulDigit ; index++ ){ | |
94 | tempo[index] = fDigitsList[index] ; | |
95 | tempoE[index] = fEnergyList[index] ; | |
96 | } | |
97 | ||
98 | delete [] fDigitsList ; | |
99 | fDigitsList = new ( Int_t[fMaxDigit] ) ; | |
100 | ||
101 | delete [] fEnergyList ; | |
102 | fEnergyList = new ( Float_t[fMaxDigit] ) ; | |
103 | ||
104 | for ( index = 0 ; index < fMulDigit ; index++ ){ | |
105 | fDigitsList[index] = tempo[index] ; | |
106 | fEnergyList[index] = tempoE[index] ; | |
107 | } | |
108 | ||
109 | delete [] tempo ; | |
110 | delete [] tempoE ; | |
111 | } // if | |
112 | ||
113 | fDigitsList[fMulDigit] = digit.GetIndexInList() ; | |
114 | fEnergyList[fMulDigit] = Energy ; | |
115 | fMulDigit++ ; | |
116 | fAmp += Energy ; | |
117 | ||
118 | } | |
119 | //____________________________________________________________________________ | |
120 | Bool_t AliEMCALRecPoint::AreNeighbours(AliEMCALDigit * digit1, AliEMCALDigit * digit2 ) const | |
121 | { | |
122 | // Tells if (true) or not (false) two digits are neighbours | |
123 | // A neighbour is defined as being two digits which share a corner | |
124 | ||
125 | Bool_t areNeighbours = kFALSE ; | |
126 | ||
127 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
128 | ||
129 | Int_t relid1[2] ; | |
130 | geom->AbsToRelNumbering(digit1->GetId(), relid1) ; | |
131 | ||
132 | Int_t relid2[2] ; | |
133 | geom->AbsToRelNumbering(digit2->GetId(), relid2) ; | |
134 | ||
135 | Int_t rowdiff = TMath::Abs( relid1[0] - relid2[0] ) ; | |
136 | Int_t coldiff = TMath::Abs( relid1[1] - relid2[1] ) ; | |
137 | ||
138 | if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0)) | |
139 | areNeighbours = kTRUE ; | |
ab48128d | 140 | |
70a93198 | 141 | return areNeighbours; |
142 | } | |
143 | ||
144 | //____________________________________________________________________________ | |
145 | Int_t AliEMCALRecPoint::Compare(const TObject * obj) const | |
146 | { | |
147 | // Compares two RecPoints according to their position in the EMCAL modules | |
148 | ||
149 | Float_t delta = 1 ; //Width of "Sorting row". If you change this | |
150 | //value (what is senseless) change as well delta in | |
151 | //AliEMCALTrackSegmentMakerv* and other RecPoints... | |
152 | Int_t rv ; | |
153 | ||
154 | AliEMCALRecPoint * clu = (AliEMCALRecPoint *)obj ; | |
155 | ||
156 | TVector3 locpos1; | |
157 | GetLocalPosition(locpos1); | |
158 | TVector3 locpos2; | |
159 | clu->GetLocalPosition(locpos2); | |
160 | ||
161 | Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ; | |
162 | if (rowdif> 0) | |
163 | rv = 1 ; | |
164 | else if(rowdif < 0) | |
165 | rv = -1 ; | |
166 | else if(locpos1.Y()>locpos2.Y()) | |
167 | rv = -1 ; | |
168 | else | |
169 | rv = 1 ; | |
170 | ||
171 | return rv ; | |
ab48128d | 172 | } |
173 | ||
174 | //____________________________________________________________________________ | |
175 | Int_t AliEMCALRecPoint::DistancetoPrimitive(Int_t px, Int_t py) | |
176 | { | |
177 | // Compute distance from point px,py to a AliEMCALRecPoint considered as a Tmarker | |
178 | // Compute the closest distance of approach from point px,py to this marker. | |
179 | // The distance is computed in pixels units. | |
70a93198 | 180 | // HG Still need to update -> Not sure what this should achieve |
ab48128d | 181 | |
182 | TVector3 pos(0.,0.,0.) ; | |
70a93198 | 183 | GetLocalPosition(pos) ; |
ab48128d | 184 | Float_t x = pos.X() ; |
70a93198 | 185 | Float_t y = pos.Y() ; |
ab48128d | 186 | const Int_t kMaxDiff = 10; |
187 | Int_t pxm = gPad->XtoAbsPixel(x); | |
188 | Int_t pym = gPad->YtoAbsPixel(y); | |
189 | Int_t dist = (px-pxm)*(px-pxm) + (py-pym)*(py-pym); | |
190 | ||
191 | if (dist > kMaxDiff) return 9999; | |
192 | return dist; | |
193 | } | |
194 | ||
195 | //___________________________________________________________________________ | |
196 | void AliEMCALRecPoint::Draw(Option_t *option) | |
197 | { | |
198 | // Draw this AliEMCALRecPoint with its current attributes | |
199 | ||
200 | AppendPad(option); | |
201 | } | |
202 | ||
203 | //______________________________________________________________________________ | |
70a93198 | 204 | void AliEMCALRecPoint::ExecuteEvent(Int_t /*event*/, Int_t, Int_t) |
ab48128d | 205 | { |
206 | // Execute action corresponding to one event | |
207 | // This member function is called when a AliEMCALRecPoint is clicked with the locator | |
208 | // | |
209 | // If Left button is clicked on AliEMCALRecPoint, the digits are switched on | |
210 | // and switched off when the mouse button is released. | |
211 | ||
212 | // static Int_t pxold, pyold; | |
213 | ||
70a93198 | 214 | /* static TGraph * digitgraph = 0 ; |
ab48128d | 215 | static TPaveText* clustertext = 0 ; |
216 | ||
217 | if (!gPad->IsEditable()) return; | |
218 | ||
219 | switch (event) { | |
220 | ||
221 | ||
222 | case kButton1Down:{ | |
223 | AliEMCALDigit * digit ; | |
88cb7938 | 224 | AliEMCALGeometry * emcalgeom = (AliEMCALGetter::Instance())->EMCALGeometry() ; |
ab48128d | 225 | |
226 | Int_t iDigit; | |
70a93198 | 227 | Int_t relid[2] ; |
ab48128d | 228 | |
229 | const Int_t kMulDigit=AliEMCALRecPoint::GetDigitsMultiplicity() ; | |
230 | Float_t * xi = new Float_t [kMulDigit] ; | |
231 | Float_t * zi = new Float_t [kMulDigit] ; | |
232 | ||
233 | for(iDigit = 0; iDigit < kMulDigit; iDigit++) { | |
234 | Fatal("AliEMCALRecPoint::ExecuteEvent", " -> Something wrong with the code"); | |
235 | digit = 0 ; //dynamic_cast<AliEMCALDigit *>((fDigitsList)[iDigit]); | |
236 | emcalgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
237 | emcalgeom->PosInAlice(relid, xi[iDigit], zi[iDigit]) ; | |
238 | } | |
239 | ||
240 | if (!digitgraph) { | |
241 | digitgraph = new TGraph(fMulDigit,xi,zi); | |
242 | digitgraph-> SetMarkerStyle(5) ; | |
243 | digitgraph-> SetMarkerSize(1.) ; | |
244 | digitgraph-> SetMarkerColor(1) ; | |
245 | digitgraph-> Draw("P") ; | |
246 | } | |
247 | if (!clustertext) { | |
248 | ||
249 | TVector3 pos(0.,0.,0.) ; | |
250 | GetLocalPosition(pos) ; | |
251 | clustertext = new TPaveText(pos.X()-10,pos.Z()+10,pos.X()+50,pos.Z()+35,"") ; | |
252 | Text_t line1[40] ; | |
253 | Text_t line2[40] ; | |
254 | sprintf(line1,"Energy=%1.2f GeV",GetEnergy()) ; | |
255 | sprintf(line2,"%d Digits",GetDigitsMultiplicity()) ; | |
256 | clustertext ->AddText(line1) ; | |
257 | clustertext ->AddText(line2) ; | |
258 | clustertext ->Draw(""); | |
259 | } | |
260 | gPad->Update() ; | |
9e5d2067 | 261 | Print("") ; |
ab48128d | 262 | delete[] xi ; |
263 | delete[] zi ; | |
264 | } | |
265 | ||
266 | break; | |
267 | ||
268 | case kButton1Up: | |
269 | if (digitgraph) { | |
270 | delete digitgraph ; | |
271 | digitgraph = 0 ; | |
272 | } | |
273 | if (clustertext) { | |
274 | delete clustertext ; | |
275 | clustertext = 0 ; | |
276 | } | |
277 | ||
278 | break; | |
279 | ||
70a93198 | 280 | }*/ |
281 | } | |
282 | //____________________________________________________________________________ | |
283 | void AliEMCALRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) | |
284 | { | |
285 | // Evaluates all shower parameters | |
286 | ||
287 | EvalLocalPosition(logWeight, digits) ; | |
288 | EvalElipsAxis(logWeight, digits) ; | |
289 | EvalDispersion(logWeight, digits) ; | |
290 | EvalCoreEnergy(logWeight, digits); | |
291 | EvalTime(digits) ; | |
292 | ||
293 | //EvalPrimaries(digits) ; | |
294 | } | |
295 | ||
296 | //____________________________________________________________________________ | |
297 | void AliEMCALRecPoint::EvalDispersion(Float_t logWeight, TClonesArray * digits) | |
298 | { | |
299 | // Calculates the dispersion of the shower at the origin of the RecPoint | |
300 | ||
301 | Float_t d = 0. ; | |
302 | Float_t wtot = 0. ; | |
303 | ||
304 | AliEMCALDigit * digit ; | |
305 | ||
306 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
307 | ||
308 | // Calculates the centre of gravity in the local EMCAL-module coordinates | |
309 | Int_t iDigit; | |
310 | ||
311 | if (!fLocPos.X() || !fLocPos.Y()) | |
312 | EvalLocalPosition(logWeight, digits) ; | |
313 | ||
314 | const Float_t kDeg2Rad = TMath::DegToRad() ; | |
315 | ||
316 | Float_t cluEta = fLocPos.X() ; | |
317 | Float_t cluPhi = fLocPos.Y() ; | |
318 | Float_t cluR = fLocPos.Z() ; | |
319 | ||
320 | if (gDebug == 2) | |
321 | printf("EvalDispersion: eta,phi,r = %f,%f,%f", cluEta, cluPhi, cluR) ; | |
322 | ||
323 | // Calculates the dispersion in coordinates | |
324 | wtot = 0.; | |
325 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { | |
326 | digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; | |
327 | Float_t etai = 0.; | |
328 | Float_t phii = 0.; | |
329 | geom->EtaPhiFromIndex(digit->GetId(), etai, phii); | |
330 | phii = phii * kDeg2Rad; | |
331 | if (gDebug == 2) | |
332 | printf("EvalDispersion: id = %d, etai,phii = %f,%f", digit->GetId(), etai, phii) ; | |
333 | ||
334 | Float_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; | |
335 | d += w * ( (etai-cluEta)*(etai-cluEta) + (phii-cluPhi)*(phii-cluPhi) ) ; | |
336 | wtot+=w ; | |
ab48128d | 337 | } |
70a93198 | 338 | |
339 | if ( wtot > 0 ) | |
340 | d /= wtot ; | |
341 | else | |
342 | d = 0. ; | |
343 | ||
344 | fDispersion = TMath::Sqrt(d) ; | |
345 | ||
ab48128d | 346 | } |
70a93198 | 347 | |
ab48128d | 348 | //____________________________________________________________________________ |
70a93198 | 349 | void AliEMCALRecPoint::EvalLocalPosition(Float_t logWeight, TClonesArray * digits) |
88cb7938 | 350 | { |
70a93198 | 351 | // Calculates the center of gravity in the local EMCAL-module coordinates |
352 | Float_t wtot = 0. ; | |
353 | ||
354 | // Int_t relid[3] ; | |
355 | ||
356 | AliEMCALDigit * digit ; | |
357 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
358 | Int_t iDigit; | |
359 | Float_t cluEta = 0; | |
360 | Float_t cluPhi = 0; | |
361 | const Float_t kDeg2Rad = TMath::DegToRad(); | |
362 | ||
363 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
364 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(fDigitsList[iDigit])) ; | |
365 | ||
366 | Float_t etai ; | |
367 | Float_t phii ; | |
368 | geom->EtaPhiFromIndex(digit->GetId(), etai, phii); | |
369 | phii = phii * kDeg2Rad; | |
370 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; | |
371 | cluEta += (etai * w) ; | |
372 | cluPhi += (phii * w ); | |
373 | wtot += w ; | |
374 | } | |
ab48128d | 375 | |
70a93198 | 376 | if ( wtot > 0 ) { |
377 | cluEta /= wtot ; | |
378 | cluPhi /= wtot ; | |
379 | } else { | |
380 | cluEta = -1 ; | |
381 | cluPhi = -1.; | |
382 | } | |
383 | ||
384 | fLocPos.SetX(cluEta); | |
385 | fLocPos.SetY(cluPhi); | |
386 | fLocPos.SetZ(geom->GetIP2ECASection()); | |
387 | ||
388 | if (gDebug==2) | |
389 | printf("EvalLocalPosition: eta,phi,r = %f,%f,%f", fLocPos.X(), fLocPos.Y(), fLocPos.Z()) ; | |
390 | fLocPosM = 0 ; | |
ab48128d | 391 | } |
392 | ||
70a93198 | 393 | //______________________________________________________________________________ |
394 | void AliEMCALRecPoint::EvalCoreEnergy(Float_t logWeight, TClonesArray * digits) | |
395 | { | |
396 | // This function calculates energy in the core, | |
397 | // i.e. within a radius rad = 3cm around the center. Beyond this radius | |
398 | // in accordance with shower profile the energy deposition | |
399 | // should be less than 2% | |
400 | ||
401 | AliEMCALDigit * digit ; | |
402 | const Float_t kDeg2Rad = TMath::DegToRad() ; | |
403 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
404 | Int_t iDigit; | |
405 | ||
406 | if (!fLocPos.X() || !fLocPos.Y() ) { | |
407 | EvalLocalPosition(logWeight, digits); | |
408 | } | |
409 | ||
410 | for(iDigit=0; iDigit < fMulDigit; iDigit++) { | |
411 | digit = (AliEMCALDigit *) ( digits->At(fDigitsList[iDigit]) ) ; | |
412 | Float_t etai = 0. ; | |
413 | Float_t phii = 0. ; | |
414 | geom->PosInAlice(digit->GetId(), etai, phii); | |
415 | phii = phii * kDeg2Rad; | |
416 | ||
417 | Float_t distance = TMath::Sqrt((etai-fLocPos.X())*(etai-fLocPos.X())+(phii-fLocPos.Y())*(phii-fLocPos.Y())) ; | |
418 | if(distance < fCoreRadius) | |
419 | fCoreEnergy += fEnergyList[iDigit] ; | |
420 | } | |
421 | ||
422 | } | |
ab48128d | 423 | //____________________________________________________________________________ |
70a93198 | 424 | void AliEMCALRecPoint::EvalElipsAxis(Float_t logWeight,TClonesArray * digits) |
ab48128d | 425 | { |
70a93198 | 426 | // Calculates the axis of the shower ellipsoid in eta and phi |
ab48128d | 427 | |
70a93198 | 428 | Double_t wtot = 0. ; |
429 | Double_t x = 0.; | |
430 | Double_t z = 0.; | |
431 | Double_t dxx = 0.; | |
432 | Double_t dzz = 0.; | |
433 | Double_t dxz = 0.; | |
ab48128d | 434 | |
70a93198 | 435 | AliEMCALDigit * digit ; |
436 | ||
437 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
438 | ||
439 | Int_t iDigit; | |
ab48128d | 440 | |
70a93198 | 441 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { |
442 | digit = (AliEMCALDigit *) digits->At(fDigitsList[iDigit]) ; | |
443 | Float_t etai = 0. ; | |
444 | Float_t phii = 0. ; | |
445 | geom->EtaPhiFromIndex(digit->GetId(), etai, phii); | |
446 | Double_t w = TMath::Max(0.,logWeight+TMath::Log(fEnergyList[iDigit]/fAmp ) ) ; | |
447 | dxx += w * etai * etai ; | |
448 | x += w * etai ; | |
449 | dzz += w * phii * phii ; | |
450 | z += w * phii ; | |
451 | dxz += w * etai * etai ; | |
452 | wtot += w ; | |
453 | } | |
454 | if ( wtot > 0 ) { | |
455 | dxx /= wtot ; | |
456 | x /= wtot ; | |
457 | dxx -= x * x ; | |
458 | dzz /= wtot ; | |
459 | z /= wtot ; | |
460 | dzz -= z * z ; | |
461 | dxz /= wtot ; | |
462 | dxz -= x * z ; | |
ab48128d | 463 | |
70a93198 | 464 | fLambda[0] = 0.5 * (dxx + dzz) + TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; |
465 | if(fLambda[0] > 0) | |
466 | fLambda[0] = TMath::Sqrt(fLambda[0]) ; | |
467 | else | |
468 | fLambda[0] = 0; | |
469 | ||
470 | fLambda[1] = 0.5 * (dxx + dzz) - TMath::Sqrt( 0.25 * (dxx - dzz) * (dxx - dzz) + dxz * dxz ) ; | |
471 | if(fLambda[1] > 0) //To avoid exception if numerical errors lead to negative lambda. | |
472 | fLambda[1] = TMath::Sqrt(fLambda[1]) ; | |
473 | else | |
474 | fLambda[1]= 0. ; | |
475 | } else { | |
476 | fLambda[0]= 0. ; | |
477 | fLambda[1]= 0. ; | |
ab48128d | 478 | } |
479 | } | |
480 | ||
481 | //______________________________________________________________________________ | |
482 | void AliEMCALRecPoint::EvalPrimaries(TClonesArray * digits) | |
483 | { | |
484 | // Constructs the list of primary particles (tracks) which have contributed to this RecPoint | |
485 | ||
486 | AliEMCALDigit * digit ; | |
487 | Int_t * tempo = new Int_t[fMaxTrack] ; | |
488 | ||
489 | Int_t index ; | |
490 | for ( index = 0 ; index < GetDigitsMultiplicity() ; index++ ) { // all digits | |
491 | digit = dynamic_cast<AliEMCALDigit *>(digits->At( fDigitsList[index] )) ; | |
492 | Int_t nprimaries = digit->GetNprimary() ; | |
493 | Int_t * newprimaryarray = new Int_t[nprimaries] ; | |
494 | Int_t ii ; | |
495 | for ( ii = 0 ; ii < nprimaries ; ii++) | |
496 | newprimaryarray[ii] = digit->GetPrimary(ii+1) ; | |
497 | ||
498 | Int_t jndex ; | |
499 | for ( jndex = 0 ; jndex < nprimaries ; jndex++ ) { // all primaries in digit | |
500 | if ( fMulTrack > fMaxTrack ) { | |
501 | fMulTrack = - 1 ; | |
9859bfc0 | 502 | Error("GetNprimaries", "increase fMaxTrack ") ; |
ab48128d | 503 | break ; |
504 | } | |
505 | Int_t newprimary = newprimaryarray[jndex] ; | |
506 | Int_t kndex ; | |
507 | Bool_t already = kFALSE ; | |
508 | for ( kndex = 0 ; kndex < fMulTrack ; kndex++ ) { //check if not already stored | |
509 | if ( newprimary == tempo[kndex] ){ | |
510 | already = kTRUE ; | |
511 | break ; | |
512 | } | |
513 | } // end of check | |
514 | if ( !already) { // store it | |
515 | tempo[fMulTrack] = newprimary ; | |
516 | fMulTrack++ ; | |
517 | } // store it | |
518 | } // all primaries in digit | |
519 | delete newprimaryarray ; | |
520 | } // all digits | |
521 | ||
522 | ||
523 | fTracksList = new Int_t[fMulTrack] ; | |
524 | for(index = 0; index < fMulTrack; index++) | |
525 | fTracksList[index] = tempo[index] ; | |
526 | ||
527 | delete tempo ; | |
528 | ||
529 | } | |
7ee5c5be | 530 | |
70a93198 | 531 | //____________________________________________________________________________ |
532 | void AliEMCALRecPoint::GetLocalPosition(TVector3 & lpos) const | |
533 | { | |
534 | // returns the position of the cluster in the local reference system of ALICE | |
535 | // X = eta, Y = phi, Z = r (a constant for the EMCAL) | |
536 | ||
537 | lpos.SetX(fLocPos.X()) ; | |
538 | lpos.SetY(fLocPos.Y()) ; | |
539 | lpos.SetZ(fLocPos.Z()) ; | |
540 | } | |
541 | ||
ab48128d | 542 | //____________________________________________________________________________ |
543 | void AliEMCALRecPoint::GetGlobalPosition(TVector3 & gpos) const | |
544 | { | |
545 | // returns the position of the cluster in the global reference system of ALICE | |
70a93198 | 546 | // These are now the Cartesian X, Y and Z |
547 | ||
548 | AliEMCALGeometry * geom = (AliEMCALGetter::Instance())->EMCALGeometry(); | |
549 | Int_t absid = geom->TowerIndexFromEtaPhi(fLocPos.X(), TMath::RadToDeg()*fLocPos.Y()); | |
550 | geom->XYZFromIndex(absid, gpos); | |
551 | } | |
552 | ||
553 | //____________________________________________________________________________ | |
554 | Float_t AliEMCALRecPoint::GetMaximalEnergy(void) const | |
555 | { | |
556 | // Finds the maximum energy in the cluster | |
ab48128d | 557 | |
70a93198 | 558 | Float_t menergy = 0. ; |
559 | ||
560 | Int_t iDigit; | |
561 | ||
562 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
563 | ||
564 | if(fEnergyList[iDigit] > menergy) | |
565 | menergy = fEnergyList[iDigit] ; | |
566 | } | |
567 | return menergy ; | |
ab48128d | 568 | } |
569 | ||
aad8e277 | 570 | //____________________________________________________________________________ |
70a93198 | 571 | Int_t AliEMCALRecPoint::GetMultiplicityAtLevel(Float_t H) const |
aad8e277 | 572 | { |
70a93198 | 573 | // Calculates the multiplicity of digits with energy larger than H*energy |
574 | ||
575 | Int_t multipl = 0 ; | |
576 | Int_t iDigit ; | |
577 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
578 | ||
579 | if(fEnergyList[iDigit] > H * fAmp) | |
580 | multipl++ ; | |
581 | } | |
582 | return multipl ; | |
583 | } | |
584 | ||
585 | //____________________________________________________________________________ | |
586 | Int_t AliEMCALRecPoint::GetNumberOfLocalMax(AliEMCALDigit ** maxAt, Float_t * maxAtEnergy, | |
587 | Float_t locMaxCut,TClonesArray * digits) const | |
588 | { | |
589 | // Calculates the number of local maxima in the cluster using fLocalMaxCut as the minimum | |
590 | // energy difference between two local maxima | |
591 | ||
592 | AliEMCALDigit * digit ; | |
593 | AliEMCALDigit * digitN ; | |
594 | ||
595 | Int_t iDigitN ; | |
596 | Int_t iDigit ; | |
597 | ||
598 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) | |
599 | maxAt[iDigit] = (AliEMCALDigit*) digits->At(fDigitsList[iDigit]) ; | |
600 | ||
601 | for(iDigit = 0 ; iDigit < fMulDigit; iDigit++) { | |
602 | if(maxAt[iDigit]) { | |
603 | digit = maxAt[iDigit] ; | |
604 | ||
605 | for(iDigitN = 0; iDigitN < fMulDigit; iDigitN++) { | |
606 | digitN = (AliEMCALDigit *) digits->At(fDigitsList[iDigitN]) ; | |
607 | ||
608 | if ( AreNeighbours(digit, digitN) ) { | |
609 | if (fEnergyList[iDigit] > fEnergyList[iDigitN] ) { | |
610 | maxAt[iDigitN] = 0 ; | |
611 | // but may be digit too is not local max ? | |
612 | if(fEnergyList[iDigit] < fEnergyList[iDigitN] + locMaxCut) | |
613 | maxAt[iDigit] = 0 ; | |
614 | } | |
615 | else { | |
616 | maxAt[iDigit] = 0 ; | |
617 | // but may be digitN too is not local max ? | |
618 | if(fEnergyList[iDigit] > fEnergyList[iDigitN] - locMaxCut) | |
619 | maxAt[iDigitN] = 0 ; | |
620 | } | |
621 | } // if Areneighbours | |
622 | } // while digitN | |
623 | } // slot not empty | |
624 | } // while digit | |
625 | ||
626 | iDigitN = 0 ; | |
627 | for(iDigit = 0; iDigit < fMulDigit; iDigit++) { | |
628 | if(maxAt[iDigit] ){ | |
629 | maxAt[iDigitN] = maxAt[iDigit] ; | |
630 | maxAtEnergy[iDigitN] = fEnergyList[iDigit] ; | |
631 | iDigitN++ ; | |
632 | } | |
633 | } | |
634 | return iDigitN ; | |
635 | } | |
636 | //____________________________________________________________________________ | |
637 | void AliEMCALRecPoint::EvalTime(TClonesArray * digits){ | |
638 | // time is set to the time of the digit with the maximum energy | |
639 | ||
640 | Float_t maxE = 0; | |
641 | Int_t maxAt = 0; | |
642 | for(Int_t idig=0; idig < fMulDigit; idig++){ | |
643 | if(fEnergyList[idig] > maxE){ | |
644 | maxE = fEnergyList[idig] ; | |
645 | maxAt = idig; | |
646 | } | |
647 | } | |
648 | fTime = ((AliEMCALDigit*) digits->At(fDigitsList[maxAt]))->GetTime() ; | |
aad8e277 | 649 | |
aad8e277 | 650 | } |
ab48128d | 651 | |
652 | //______________________________________________________________________________ | |
653 | void AliEMCALRecPoint::Paint(Option_t *) | |
654 | { | |
655 | // Paint this ALiRecPoint as a TMarker with its current attributes | |
656 | ||
657 | TVector3 pos(0.,0.,0.) ; | |
658 | GetLocalPosition(pos) ; | |
659 | Coord_t x = pos.X() ; | |
660 | Coord_t y = pos.Z() ; | |
661 | Color_t markercolor = 1 ; | |
662 | Size_t markersize = 1. ; | |
663 | Style_t markerstyle = 5 ; | |
664 | ||
665 | if (!gPad->IsBatch()) { | |
666 | gVirtualX->SetMarkerColor(markercolor) ; | |
667 | gVirtualX->SetMarkerSize (markersize) ; | |
668 | gVirtualX->SetMarkerStyle(markerstyle) ; | |
669 | } | |
670 | gPad->SetAttMarkerPS(markercolor,markerstyle,markersize) ; | |
671 | gPad->PaintPolyMarker(1,&x,&y,"") ; | |
672 | } | |
70a93198 | 673 | |
674 | //______________________________________________________________________________ | |
675 | Float_t AliEMCALRecPoint::EtaToTheta(Float_t arg) const | |
676 | { | |
677 | //Converts Theta (Radians) to Eta(Radians) | |
678 | return (2.*TMath::ATan(TMath::Exp(-arg))); | |
679 | } | |
680 | ||
681 | //______________________________________________________________________________ | |
682 | Float_t AliEMCALRecPoint::ThetaToEta(Float_t arg) const | |
683 | { | |
684 | //Converts Eta (Radians) to Theta(Radians) | |
685 | return (-1 * TMath::Log(TMath::Tan(0.5 * arg))); | |
686 | } |