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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 | /* History of cvs commits: | |
19 | * | |
20 | * $Log$ | |
21 | * Revision 1.26 2007/06/18 07:02:44 kharlov | |
22 | * Change the signature of EvalLocalPosition() to obey the method virtuality from the parent class | |
23 | * | |
24 | * Revision 1.25 2007/03/06 06:47:28 kharlov | |
25 | * DP:Possibility to use actual vertex position added | |
26 | */ | |
27 | ||
28 | //_________________________________________________________________________ | |
29 | // RecPoint implementation for PHOS-CPV | |
30 | // An CpvRecPoint is a cluster of digits | |
31 | //-- Author: Yuri Kharlov | |
32 | // (after Dmitri Peressounko (RRC KI & SUBATECH)) | |
33 | // 30 October 2000 | |
34 | ||
35 | // --- ROOT system --- | |
36 | ||
37 | #include "TMath.h" | |
38 | #include "TClonesArray.h" | |
39 | ||
40 | // --- Standard library --- | |
41 | ||
42 | // --- AliRoot header files --- | |
43 | #include "AliLog.h" | |
44 | #include "AliPHOSGeometry.h" | |
45 | #include "AliPHOSDigit.h" | |
46 | #include "AliPHOSCpvRecPoint.h" | |
47 | #include "AliPHOSLoader.h" | |
48 | ||
49 | ClassImp(AliPHOSCpvRecPoint) | |
50 | ||
51 | //____________________________________________________________________________ | |
52 | AliPHOSCpvRecPoint::AliPHOSCpvRecPoint() : | |
53 | AliPHOSEmcRecPoint(), | |
54 | fLengX(-1), | |
55 | fLengZ(-1) | |
56 | { | |
57 | // ctor | |
58 | } | |
59 | ||
60 | //____________________________________________________________________________ | |
61 | AliPHOSCpvRecPoint::AliPHOSCpvRecPoint(const char * opt) : | |
62 | AliPHOSEmcRecPoint(opt), | |
63 | fLengX(-1), | |
64 | fLengZ(-1) | |
65 | { | |
66 | // ctor | |
67 | } | |
68 | ||
69 | //____________________________________________________________________________ | |
70 | AliPHOSCpvRecPoint::~AliPHOSCpvRecPoint() | |
71 | { | |
72 | // dtor | |
73 | } | |
74 | ||
75 | //____________________________________________________________________________ | |
76 | Bool_t AliPHOSCpvRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const | |
77 | { | |
78 | // Tells if (true) or not (false) two digits are neighbors) | |
79 | ||
80 | Bool_t aren = kFALSE ; | |
81 | ||
82 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ; | |
83 | ||
84 | Int_t relid1[4] ; | |
85 | phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ; | |
86 | ||
87 | Int_t relid2[4] ; | |
88 | phosgeom->AbsToRelNumbering(digit2->GetId(), relid2) ; | |
89 | ||
90 | Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ; | |
91 | Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ; | |
92 | ||
93 | if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0)) | |
94 | aren = kTRUE ; | |
95 | ||
96 | return aren ; | |
97 | } | |
98 | ||
99 | //____________________________________________________________________________ | |
100 | Int_t AliPHOSCpvRecPoint::Compare(const TObject * obj) const | |
101 | { | |
102 | // Compares two RecPoints according to their position in the PHOS modules | |
103 | ||
104 | Float_t delta = 1 ; //Width of "Sorting row". If you changibg this | |
105 | //value (what is senseless) change as vell delta in | |
106 | //AliPHOSTrackSegmentMakerv* and other RecPoints... | |
107 | ||
108 | Int_t rv ; | |
109 | ||
110 | AliPHOSCpvRecPoint * clu = (AliPHOSCpvRecPoint *) obj ; | |
111 | ||
112 | Int_t phosmod1 = GetPHOSMod() ; | |
113 | Int_t phosmod2 = clu->GetPHOSMod() ; | |
114 | ||
115 | TVector3 locpos1; | |
116 | GetLocalPosition(locpos1) ; | |
117 | TVector3 locpos2; | |
118 | clu->GetLocalPosition(locpos2) ; | |
119 | ||
120 | if(phosmod1 == phosmod2 ) { | |
121 | Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ; | |
122 | if (rowdif> 0) | |
123 | rv = 1 ; | |
124 | else if(rowdif < 0) | |
125 | rv = -1 ; | |
126 | else if(locpos1.Z()>locpos2.Z()) | |
127 | rv = -1 ; | |
128 | else | |
129 | rv = 1 ; | |
130 | } | |
131 | ||
132 | else { | |
133 | if(phosmod1 < phosmod2 ) | |
134 | rv = -1 ; | |
135 | else | |
136 | rv = 1 ; | |
137 | } | |
138 | ||
139 | return rv ; | |
140 | ||
141 | } | |
142 | ||
143 | //______________________________________________________________________________ | |
144 | void AliPHOSCpvRecPoint::ExecuteEvent(Int_t, Int_t, Int_t ) /*const*/ | |
145 | { | |
146 | // // Execute action corresponding to one event | |
147 | // // This member function is called when a AliPHOSRecPoint is clicked with the locator | |
148 | // // | |
149 | // // If Left button is clicked on AliPHOSRecPoint, the digits are switched on | |
150 | // // and switched off when the mouse button is released. | |
151 | // // | |
152 | ||
153 | // // static Int_t pxold, pyold; | |
154 | ||
155 | // AliPHOSLoader * gime = AliPHOSLoader::GetInstance() ; | |
156 | ||
157 | // static TGraph * digitgraph = 0 ; | |
158 | ||
159 | // if (!gPad->IsEditable()) return; | |
160 | ||
161 | // TH2F * histo = 0 ; | |
162 | // TCanvas * histocanvas ; | |
163 | ||
164 | // switch (event) { | |
165 | ||
166 | // case kButton1Down: { | |
167 | // AliPHOSDigit * digit ; | |
168 | // AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ; | |
169 | // Int_t iDigit; | |
170 | // Int_t relid[4] ; | |
171 | ||
172 | // const Int_t kMulDigit = AliPHOSCpvRecPoint::GetDigitsMultiplicity() ; | |
173 | // Float_t * xi = new Float_t[kMulDigit] ; | |
174 | // Float_t * zi = new Float_t[kMulDigit] ; | |
175 | ||
176 | // // create the histogram for the single cluster | |
177 | // // 1. gets histogram boundaries | |
178 | // Float_t ximax = -999. ; | |
179 | // Float_t zimax = -999. ; | |
180 | // Float_t ximin = 999. ; | |
181 | // Float_t zimin = 999. ; | |
182 | ||
183 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { | |
184 | // digit = (AliPHOSDigit *) ( gime->Digit(fDigitsList[iDigit]) ) ; | |
185 | // phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
186 | // phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]); | |
187 | // if ( xi[iDigit] > ximax ) | |
188 | // ximax = xi[iDigit] ; | |
189 | // if ( xi[iDigit] < ximin ) | |
190 | // ximin = xi[iDigit] ; | |
191 | // if ( zi[iDigit] > zimax ) | |
192 | // zimax = zi[iDigit] ; | |
193 | // if ( zi[iDigit] < zimin ) | |
194 | // zimin = zi[iDigit] ; | |
195 | // } | |
196 | // ximax += phosgeom->GetCrystalSize(0) / 2. ; | |
197 | // zimax += phosgeom->GetCrystalSize(2) / 2. ; | |
198 | // ximin -= phosgeom->GetCrystalSize(0) / 2. ; | |
199 | // zimin -= phosgeom->GetCrystalSize(2) / 2. ; | |
200 | // Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ; | |
201 | // Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ; | |
202 | ||
203 | // // 2. gets the histogram title | |
204 | ||
205 | // Text_t title[100] ; | |
206 | // sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ; | |
207 | ||
208 | // if (!histo) { | |
209 | // delete histo ; | |
210 | // histo = 0 ; | |
211 | // } | |
212 | // histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ; | |
213 | ||
214 | // Float_t x, z ; | |
215 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { | |
216 | // digit = (AliPHOSDigit *) ( gime->Digit(fDigitsList[iDigit]) ) ; | |
217 | // phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
218 | // phosgeom->RelPosInModule(relid, x, z); | |
219 | // histo->Fill(x, z, fEnergyList[iDigit] ) ; | |
220 | // } | |
221 | ||
222 | // if (!digitgraph) { | |
223 | // digitgraph = new TGraph(kMulDigit,xi,zi); | |
224 | // digitgraph-> SetMarkerStyle(5) ; | |
225 | // digitgraph-> SetMarkerSize(1.) ; | |
226 | // digitgraph-> SetMarkerColor(1) ; | |
227 | // digitgraph-> Paint("P") ; | |
228 | // } | |
229 | ||
230 | // Print() ; | |
231 | // histocanvas = new TCanvas("cluser", "a single cluster", 600, 500) ; | |
232 | // histocanvas->Draw() ; | |
233 | // histo->Draw("lego1") ; | |
234 | ||
235 | // delete[] xi ; | |
236 | // delete[] zi ; | |
237 | ||
238 | // break; | |
239 | // } | |
240 | ||
241 | // case kButton1Up: | |
242 | // if (digitgraph) { | |
243 | // delete digitgraph ; | |
244 | // digitgraph = 0 ; | |
245 | // } | |
246 | // break; | |
247 | ||
248 | // } | |
249 | } | |
250 | ||
251 | //____________________________________________________________________________ | |
252 | void AliPHOSCpvRecPoint::EvalAll(TClonesArray * digits) | |
253 | { | |
254 | // Evaluate local coordinate assuming the vertex in (000) and no inclination | |
255 | AliPHOSEmcRecPoint::EvalAll(digits) ; | |
256 | } | |
257 | //____________________________________________________________________________ | |
258 | void AliPHOSCpvRecPoint::EvalAll(Float_t logWeight, TVector3 &vtx, TClonesArray * digits) | |
259 | { | |
260 | // wraps other methods | |
261 | TVector3 vInc(0,1,0); | |
262 | AliPHOSEmcRecPoint::EvalAll(logWeight,vtx,digits) ; | |
263 | EvalLocalPosition(logWeight, vtx, digits,vInc) ; | |
264 | EvalClusterLengths(digits) ; | |
265 | } | |
266 | //____________________________________________________________________________ | |
267 | void AliPHOSCpvRecPoint::EvalLocalPosition(Float_t logWeight, TVector3 & /*vtx */, TClonesArray * digits, TVector3 &/* vInc */) | |
268 | { | |
269 | // Calculates the center of gravity in the local PHOS-module coordinates | |
270 | ||
271 | Float_t wtot = 0. ; | |
272 | ||
273 | Int_t relid[4] ; | |
274 | ||
275 | Float_t x = 0. ; | |
276 | Float_t z = 0. ; | |
277 | ||
278 | AliPHOSDigit * digit ; | |
279 | ||
280 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance(); | |
281 | ||
282 | Int_t iDigit; | |
283 | ||
284 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
285 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]); | |
286 | ||
287 | Float_t xi ; | |
288 | Float_t zi ; | |
289 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
290 | phosgeom->RelPosInModule(relid, xi, zi); | |
291 | if (fAmp>0 && fEnergyList[iDigit]>0) { | |
292 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; | |
293 | x += xi * w ; | |
294 | z += zi * w ; | |
295 | wtot += w ; | |
296 | } | |
297 | else | |
298 | AliError(Form("Wrong energy %f and/or amplitude %f\n", fEnergyList[iDigit], fAmp)); | |
299 | } | |
300 | ||
301 | if (wtot != 0) { | |
302 | x /= wtot ; | |
303 | z /= wtot ; | |
304 | } else { | |
305 | x = -1e6 ; | |
306 | z = -1e6 ; | |
307 | if (fMulDigit != 0) | |
308 | AliWarning(Form("Too low log weight factor to evaluate cluster's center" )) ; | |
309 | } | |
310 | fLocPos.SetX(x) ; | |
311 | fLocPos.SetY(0.) ; | |
312 | fLocPos.SetZ(z) ; | |
313 | ||
314 | } | |
315 | ||
316 | //____________________________________________________________________________ | |
317 | void AliPHOSCpvRecPoint::EvalClusterLengths(TClonesArray * digits) | |
318 | { | |
319 | //Modified 15.03.2001 by Dmitri Peressounko | |
320 | ||
321 | // Calculates the cluster lengths along X and Z axes | |
322 | // These characteristics are needed for CPV to tune | |
323 | // digitization+reconstruction to experimental data | |
324 | // Yuri Kharlov. 24 October 2000 | |
325 | ||
326 | Int_t relid[4] ; | |
327 | ||
328 | AliPHOSDigit * digit ; | |
329 | ||
330 | AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance(); | |
331 | ||
332 | const Int_t kMaxLeng=20; | |
333 | Int_t idX[kMaxLeng], idZ[kMaxLeng]; | |
334 | fLengX = 0; | |
335 | fLengZ = 0; | |
336 | Bool_t dejavu; | |
337 | ||
338 | for(Int_t iDigit=0; iDigit<fMulDigit; iDigit++) { | |
339 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
340 | Int_t absId = digit->GetId(); | |
341 | phosgeom->AbsToRelNumbering(absId, relid) ; | |
342 | ||
343 | Int_t i; | |
344 | dejavu=kFALSE; | |
345 | for (i=0; i<fLengX; i++) if (relid[2]==idX[i]) { dejavu=kTRUE; break; } | |
346 | if (!dejavu) { | |
347 | idX[fLengX]=relid[2]; | |
348 | fLengX++; | |
349 | fLengX = TMath::Min(fLengX,kMaxLeng); | |
350 | } | |
351 | ||
352 | dejavu=kFALSE; | |
353 | for (i=0; i<fLengZ; i++) if (relid[3]==idZ[i]) { dejavu=kTRUE; break; } | |
354 | if (!dejavu) { | |
355 | idZ[fLengZ]=relid[3]; | |
356 | fLengZ++; | |
357 | fLengZ = TMath::Min(fLengZ,kMaxLeng); | |
358 | } | |
359 | } | |
360 | } | |
361 | ||
362 | //____________________________________________________________________________ | |
363 | void AliPHOSCpvRecPoint::Print(const Option_t *) const | |
364 | { | |
365 | // Print the list of digits belonging to the cluster | |
366 | ||
367 | TString message ; | |
368 | message = "AliPHOSCpvRecPoint: " ; | |
369 | message += "Digits # " ; | |
370 | AliInfo(message.Data()) ; | |
371 | ||
372 | Int_t iDigit; | |
373 | ||
374 | for(iDigit=0; iDigit<fMulDigit; iDigit++) | |
375 | printf(" %d \n", fDigitsList[iDigit]) ; | |
376 | ||
377 | printf("Energies: \n") ; | |
378 | for(iDigit=0; iDigit<fMulDigit; iDigit++) | |
379 | printf(" %f ", fEnergyList[iDigit]) ; | |
380 | ||
381 | message = " Multiplicity = %d\n" ; | |
382 | message += " Cluster Energy = %f\n" ; | |
383 | message += " Stored at position %d\n" ; | |
384 | ||
385 | printf(message.Data(), fMulDigit, fAmp, GetIndexInList() ) ; | |
386 | ||
387 | } |