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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 | //_________________________________________________________________________ | |
19 | // RecPoint implementation for PHOS-CPV | |
20 | // An CpvRecPoint is a cluster of digits | |
21 | //*-- Author: Yuri Kharlov | |
22 | // (after Dmitri Peressounko (RRC KI & SUBATECH)) | |
23 | // 30 October 2000 | |
24 | ||
25 | // --- ROOT system --- | |
26 | #include "TPad.h" | |
27 | #include "TH2.h" | |
28 | #include "TMath.h" | |
29 | #include "TCanvas.h" | |
30 | #include "TClonesArray.h" | |
31 | #include "AliPHOSGetter.h" | |
32 | ||
33 | // --- Standard library --- | |
34 | ||
35 | #include <iostream.h> | |
36 | ||
37 | // --- AliRoot header files --- | |
38 | ||
39 | #include "AliPHOSCpvRecPoint.h" | |
40 | #include "AliPHOSPpsdRecPoint.h" | |
41 | ||
42 | ClassImp(AliPHOSCpvRecPoint) | |
43 | ||
44 | //____________________________________________________________________________ | |
45 | AliPHOSCpvRecPoint::AliPHOSCpvRecPoint() : AliPHOSEmcRecPoint() | |
46 | { | |
47 | // ctor | |
48 | ||
49 | fLengX = -1; | |
50 | fLengZ = -1; | |
51 | } | |
52 | ||
53 | //____________________________________________________________________________ | |
54 | AliPHOSCpvRecPoint::~AliPHOSCpvRecPoint() | |
55 | { | |
56 | // dtor | |
57 | } | |
58 | ||
59 | ||
60 | //____________________________________________________________________________ | |
61 | Bool_t AliPHOSCpvRecPoint::AreNeighbours(AliPHOSDigit * digit1, AliPHOSDigit * digit2 ) const | |
62 | { | |
63 | // Tells if (true) or not (false) two digits are neighbors) | |
64 | ||
65 | Bool_t aren = kFALSE ; | |
66 | ||
67 | AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
68 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry*)gime->PHOSGeometry(); | |
69 | ||
70 | Int_t relid1[4] ; | |
71 | phosgeom->AbsToRelNumbering(digit1->GetId(), relid1) ; | |
72 | ||
73 | Int_t relid2[4] ; | |
74 | phosgeom->AbsToRelNumbering(digit2->GetId(), relid2) ; | |
75 | ||
76 | Int_t rowdiff = TMath::Abs( relid1[2] - relid2[2] ) ; | |
77 | Int_t coldiff = TMath::Abs( relid1[3] - relid2[3] ) ; | |
78 | ||
79 | if (( coldiff <= 1 ) && ( rowdiff <= 1 ) && (coldiff + rowdiff > 0)) | |
80 | aren = kTRUE ; | |
81 | ||
82 | return aren ; | |
83 | } | |
84 | ||
85 | //____________________________________________________________________________ | |
86 | Int_t AliPHOSCpvRecPoint::Compare(const TObject * obj) const | |
87 | { | |
88 | // Compares two RecPoints according to their position in the PHOS modules | |
89 | ||
90 | Float_t delta = 1 ; //Width of "Sorting row". If you changibg this | |
91 | //value (what is senseless) change as vell delta in | |
92 | //AliPHOSTrackSegmentMakerv* and other RecPoints... | |
93 | ||
94 | Int_t rv ; | |
95 | ||
96 | if( (strcmp(obj->ClassName() , "AliPHOSPpsdRecPoint" )) == 0) // PPSD Rec Point | |
97 | { | |
98 | AliPHOSPpsdRecPoint * clu = (AliPHOSPpsdRecPoint *)obj ; | |
99 | if(this->GetPHOSMod() < clu->GetPHOSMod() ) | |
100 | rv = -1 ; | |
101 | else | |
102 | rv = 1 ; | |
103 | return rv ; | |
104 | } | |
105 | else | |
106 | { | |
107 | AliPHOSCpvRecPoint * clu = (AliPHOSCpvRecPoint *) obj ; | |
108 | ||
109 | Int_t phosmod1 = GetPHOSMod() ; | |
110 | Int_t phosmod2 = clu->GetPHOSMod() ; | |
111 | ||
112 | TVector3 locpos1; | |
113 | GetLocalPosition(locpos1) ; | |
114 | TVector3 locpos2; | |
115 | clu->GetLocalPosition(locpos2) ; | |
116 | ||
117 | if(phosmod1 == phosmod2 ) { | |
118 | Int_t rowdif = (Int_t)TMath::Ceil(locpos1.X()/delta)-(Int_t)TMath::Ceil(locpos2.X()/delta) ; | |
119 | if (rowdif> 0) | |
120 | rv = 1 ; | |
121 | else if(rowdif < 0) | |
122 | rv = -1 ; | |
123 | else if(locpos1.Z()>locpos2.Z()) | |
124 | rv = -1 ; | |
125 | else | |
126 | rv = 1 ; | |
127 | } | |
128 | ||
129 | else { | |
130 | if(phosmod1 < phosmod2 ) | |
131 | rv = -1 ; | |
132 | else | |
133 | rv = 1 ; | |
134 | } | |
135 | ||
136 | return rv ; | |
137 | } | |
138 | } | |
139 | ||
140 | //______________________________________________________________________________ | |
141 | void AliPHOSCpvRecPoint::ExecuteEvent(Int_t event, Int_t px, Int_t py) const | |
142 | { | |
143 | // // Execute action corresponding to one event | |
144 | // // This member function is called when a AliPHOSRecPoint is clicked with the locator | |
145 | // // | |
146 | // // If Left button is clicked on AliPHOSRecPoint, the digits are switched on | |
147 | // // and switched off when the mouse button is released. | |
148 | // // | |
149 | ||
150 | // // static Int_t pxold, pyold; | |
151 | ||
152 | // AliPHOSGetter * gime = AliPHOSGetter::GetInstance() ; | |
153 | ||
154 | // static TGraph * digitgraph = 0 ; | |
155 | ||
156 | // if (!gPad->IsEditable()) return; | |
157 | ||
158 | // TH2F * histo = 0 ; | |
159 | // TCanvas * histocanvas ; | |
160 | ||
161 | // switch (event) { | |
162 | ||
163 | // case kButton1Down: { | |
164 | // AliPHOSDigit * digit ; | |
165 | // AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ; | |
166 | // Int_t iDigit; | |
167 | // Int_t relid[4] ; | |
168 | ||
169 | // const Int_t kMulDigit = AliPHOSCpvRecPoint::GetDigitsMultiplicity() ; | |
170 | // Float_t * xi = new Float_t[kMulDigit] ; | |
171 | // Float_t * zi = new Float_t[kMulDigit] ; | |
172 | ||
173 | // // create the histogram for the single cluster | |
174 | // // 1. gets histogram boundaries | |
175 | // Float_t ximax = -999. ; | |
176 | // Float_t zimax = -999. ; | |
177 | // Float_t ximin = 999. ; | |
178 | // Float_t zimin = 999. ; | |
179 | ||
180 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { | |
181 | // digit = (AliPHOSDigit *) ( gime->Digit(fDigitsList[iDigit]) ) ; | |
182 | // phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
183 | // phosgeom->RelPosInModule(relid, xi[iDigit], zi[iDigit]); | |
184 | // if ( xi[iDigit] > ximax ) | |
185 | // ximax = xi[iDigit] ; | |
186 | // if ( xi[iDigit] < ximin ) | |
187 | // ximin = xi[iDigit] ; | |
188 | // if ( zi[iDigit] > zimax ) | |
189 | // zimax = zi[iDigit] ; | |
190 | // if ( zi[iDigit] < zimin ) | |
191 | // zimin = zi[iDigit] ; | |
192 | // } | |
193 | // ximax += phosgeom->GetCrystalSize(0) / 2. ; | |
194 | // zimax += phosgeom->GetCrystalSize(2) / 2. ; | |
195 | // ximin -= phosgeom->GetCrystalSize(0) / 2. ; | |
196 | // zimin -= phosgeom->GetCrystalSize(2) / 2. ; | |
197 | // Int_t xdim = (int)( (ximax - ximin ) / phosgeom->GetCrystalSize(0) + 0.5 ) ; | |
198 | // Int_t zdim = (int)( (zimax - zimin ) / phosgeom->GetCrystalSize(2) + 0.5 ) ; | |
199 | ||
200 | // // 2. gets the histogram title | |
201 | ||
202 | // Text_t title[100] ; | |
203 | // sprintf(title,"Energy=%1.2f GeV ; Digits ; %d ", GetEnergy(), GetDigitsMultiplicity()) ; | |
204 | ||
205 | // if (!histo) { | |
206 | // delete histo ; | |
207 | // histo = 0 ; | |
208 | // } | |
209 | // histo = new TH2F("cluster3D", title, xdim, ximin, ximax, zdim, zimin, zimax) ; | |
210 | ||
211 | // Float_t x, z ; | |
212 | // for(iDigit=0; iDigit<kMulDigit; iDigit++) { | |
213 | // digit = (AliPHOSDigit *) ( gime->Digit(fDigitsList[iDigit]) ) ; | |
214 | // phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
215 | // phosgeom->RelPosInModule(relid, x, z); | |
216 | // histo->Fill(x, z, fEnergyList[iDigit] ) ; | |
217 | // } | |
218 | ||
219 | // if (!digitgraph) { | |
220 | // digitgraph = new TGraph(kMulDigit,xi,zi); | |
221 | // digitgraph-> SetMarkerStyle(5) ; | |
222 | // digitgraph-> SetMarkerSize(1.) ; | |
223 | // digitgraph-> SetMarkerColor(1) ; | |
224 | // digitgraph-> Paint("P") ; | |
225 | // } | |
226 | ||
227 | // Print() ; | |
228 | // histocanvas = new TCanvas("cluser", "a single cluster", 600, 500) ; | |
229 | // histocanvas->Draw() ; | |
230 | // histo->Draw("lego1") ; | |
231 | ||
232 | // delete[] xi ; | |
233 | // delete[] zi ; | |
234 | ||
235 | // break; | |
236 | // } | |
237 | ||
238 | // case kButton1Up: | |
239 | // if (digitgraph) { | |
240 | // delete digitgraph ; | |
241 | // digitgraph = 0 ; | |
242 | // } | |
243 | // break; | |
244 | ||
245 | // } | |
246 | } | |
247 | ||
248 | //____________________________________________________________________________ | |
249 | void AliPHOSCpvRecPoint::EvalAll(Float_t logWeight,TClonesArray * digits) | |
250 | { | |
251 | // wraps other methods | |
252 | AliPHOSEmcRecPoint::EvalAll(logWeight,digits) ; | |
253 | EvalClusterLengths(digits) ; | |
254 | } | |
255 | //____________________________________________________________________________ | |
256 | void AliPHOSCpvRecPoint::EvalLocalPosition(Float_t logWeight,TClonesArray * digits) | |
257 | { | |
258 | // Calculates the center of gravity in the local PHOS-module coordinates | |
259 | ||
260 | Float_t wtot = 0. ; | |
261 | ||
262 | Int_t relid[4] ; | |
263 | ||
264 | Float_t x = 0. ; | |
265 | Float_t z = 0. ; | |
266 | ||
267 | AliPHOSDigit * digit ; | |
268 | ||
269 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ; | |
270 | ||
271 | Int_t iDigit; | |
272 | ||
273 | for(iDigit=0; iDigit<fMulDigit; iDigit++) { | |
274 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]); | |
275 | ||
276 | Float_t xi ; | |
277 | Float_t zi ; | |
278 | phosgeom->AbsToRelNumbering(digit->GetId(), relid) ; | |
279 | phosgeom->RelPosInModule(relid, xi, zi); | |
280 | Float_t w = TMath::Max( 0., logWeight + TMath::Log( fEnergyList[iDigit] / fAmp ) ) ; | |
281 | x += xi * w ; | |
282 | z += zi * w ; | |
283 | wtot += w ; | |
284 | } | |
285 | ||
286 | if (wtot != 0) { | |
287 | x /= wtot ; | |
288 | z /= wtot ; | |
289 | } else { | |
290 | x = -1e6 ; | |
291 | z = -1e6 ; | |
292 | if (fMulDigit != 0) cout << "AliPHOSCpvRecPoint: too low log weight factor " | |
293 | << "to evaluate cluster's center\n"; | |
294 | } | |
295 | fLocPos.SetX(x) ; | |
296 | fLocPos.SetY(0.) ; | |
297 | fLocPos.SetZ(z) ; | |
298 | ||
299 | } | |
300 | ||
301 | //____________________________________________________________________________ | |
302 | void AliPHOSCpvRecPoint::EvalClusterLengths(TClonesArray * digits) | |
303 | { | |
304 | //Modified 15.03.2001 by Dmitri Peressounko | |
305 | ||
306 | // Calculates the cluster lengths along X and Z axes | |
307 | // These characteristics are needed for CPV to tune | |
308 | // digitization+reconstruction to experimental data | |
309 | // Yuri Kharlov. 24 October 2000 | |
310 | ||
311 | Int_t relid[4] ; | |
312 | ||
313 | AliPHOSDigit * digit ; | |
314 | ||
315 | AliPHOSGeometry * phosgeom = (AliPHOSGeometry *) fGeom ; | |
316 | ||
317 | const Int_t kMaxLeng=20; | |
318 | Int_t idX[kMaxLeng], idZ[kMaxLeng]; | |
319 | fLengX = 0; | |
320 | fLengZ = 0; | |
321 | Bool_t dejavu; | |
322 | ||
323 | for(Int_t iDigit=0; iDigit<fMulDigit; iDigit++) { | |
324 | digit = (AliPHOSDigit *) digits->At(fDigitsList[iDigit]) ; | |
325 | Int_t absId = digit->GetId(); | |
326 | phosgeom->AbsToRelNumbering(absId, relid) ; | |
327 | ||
328 | Int_t i; | |
329 | dejavu=kFALSE; | |
330 | for (i=0; i<fLengX; i++) if (relid[2]==idX[i]) { dejavu=kTRUE; break; } | |
331 | if (!dejavu) { | |
332 | idX[fLengX]=relid[2]; | |
333 | fLengX++; | |
334 | fLengX = TMath::Min(fLengX,kMaxLeng); | |
335 | } | |
336 | ||
337 | dejavu=kFALSE; | |
338 | for (i=0; i<fLengZ; i++) if (relid[3]==idZ[i]) { dejavu=kTRUE; break; } | |
339 | if (!dejavu) { | |
340 | idZ[fLengZ]=relid[3]; | |
341 | fLengZ++; | |
342 | fLengZ = TMath::Min(fLengZ,kMaxLeng); | |
343 | } | |
344 | } | |
345 | } | |
346 | ||
347 | ||
348 | ||
349 | //____________________________________________________________________________ | |
350 | void AliPHOSCpvRecPoint::Print(Option_t * option) | |
351 | { | |
352 | // Print the list of digits belonging to the cluster | |
353 | ||
354 | cout << "AliPHOSCpvRecPoint: " << endl ; | |
355 | ||
356 | Int_t iDigit; | |
357 | ||
358 | cout << "Digits # " ; | |
359 | for(iDigit=0; iDigit<fMulDigit; iDigit++) | |
360 | cout << fDigitsList[iDigit] << " " ; | |
361 | cout << endl ; | |
362 | ||
363 | cout << "Energies: " ; | |
364 | for(iDigit=0; iDigit<fMulDigit; iDigit++) | |
365 | cout << fEnergyList[iDigit] << " " ; | |
366 | cout << endl ; | |
367 | ||
368 | cout << " Multiplicity = " << fMulDigit << endl ; | |
369 | cout << " Cluster Energy = " << fAmp << endl ; | |
370 | cout << " Stored at position " << GetIndexInList() << endl ; | |
371 | ||
372 | } |