]>
Commit | Line | Data |
---|---|---|
4c039060 | 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 | ||
f531a546 | 16 | // $Id$ |
4c039060 | 17 | |
959fbac5 | 18 | /////////////////////////////////////////////////////////////////////////// |
19 | // Class AliCalcluster | |
20 | // Description of a cluster of calorimeter modules. | |
21 | // A matrix geometry is assumed in which a cluster center | |
22 | // is identified by (row,col) and contains sig as signal | |
23 | // being the signal of the complete cluster. | |
24 | // Some info about cluster topology is provided in order | |
25 | // to enable EM or hadronic cluster identification. | |
26 | // | |
27 | //--- Author: Nick van Eijndhoven 13-jun-1997 UU-SAP Utrecht | |
f531a546 | 28 | //- Modified: NvE $Date$ UU-SAP Utrecht |
959fbac5 | 29 | /////////////////////////////////////////////////////////////////////////// |
30 | ||
d88f97cc | 31 | #include "AliCalcluster.h" |
32 | ||
33 | ClassImp(AliCalcluster) // Class implementation to enable ROOT I/O | |
34 | ||
35 | AliCalcluster::AliCalcluster() | |
36 | { | |
37 | // Default constructer, all data is set to 0 | |
38 | fCenter=0; | |
39 | fSig=0.; | |
40 | fNmods=0; | |
41 | fSig11=0.; | |
42 | fSig33=0.; | |
43 | fSig55=0.; | |
44 | fRowdisp=0.; | |
45 | fColdisp=0.; | |
46 | fNvetos=0; | |
47 | fVetos=0; | |
48 | } | |
49 | /////////////////////////////////////////////////////////////////////////// | |
50 | AliCalcluster::~AliCalcluster() | |
51 | { | |
52 | // Destructor to delete dynamically allocated memory | |
53 | if (fVetos) | |
54 | { | |
55 | fVetos->Delete(); | |
56 | delete fVetos; | |
57 | fVetos=0; | |
58 | } | |
59 | } | |
60 | /////////////////////////////////////////////////////////////////////////// | |
61 | AliCalcluster::AliCalcluster(AliCalmodule& m) | |
62 | { | |
63 | // Cluster constructor with module m as center. | |
f40f8fbd | 64 | // Module data is only entered for a module which contains a signal, |
65 | // has not been used in a cluster yet, and is not declared dead. | |
66 | // | |
67 | // Note : | |
68 | // It is advised NOT to start a cluster with modules situated at a detector edge. | |
69 | // This feature is automatically checked when using the built-in clustering | |
70 | // of AliCalorimeter. | |
d88f97cc | 71 | |
f40f8fbd | 72 | Ali3Vector r; |
d88f97cc | 73 | |
f40f8fbd | 74 | if (m.GetClusteredSignal()>0. && m.GetDeadValue()==0) |
d88f97cc | 75 | { |
76 | fCenter=&m; | |
f40f8fbd | 77 | r=m.GetPosition(); |
78 | SetPosition(r); | |
d88f97cc | 79 | fSig=m.GetClusteredSignal(); |
80 | fNmods=1; | |
81 | fSig11=m.GetClusteredSignal(); | |
82 | fSig33=m.GetClusteredSignal(); | |
83 | fSig55=m.GetClusteredSignal(); | |
84 | fRowdisp=0.; | |
85 | fColdisp=0.; | |
86 | m.SetClusteredSignal(0.); // mark module as used in cluster | |
87 | fNvetos=0; | |
88 | fVetos=0; | |
89 | } | |
90 | else | |
91 | { | |
92 | fCenter=0; | |
f40f8fbd | 93 | SetPosition(r); |
d88f97cc | 94 | fSig=0.; |
95 | fNmods=0; | |
96 | fSig11=0.; | |
97 | fSig33=0.; | |
98 | fSig55=0.; | |
99 | fRowdisp=0.; | |
100 | fColdisp=0.; | |
101 | fNvetos=0; | |
102 | fVetos=0; | |
103 | } | |
104 | } | |
105 | /////////////////////////////////////////////////////////////////////////// | |
106 | Int_t AliCalcluster::GetRow() | |
107 | { | |
108 | // Provide the row number of the cluster center | |
109 | if (fCenter) | |
110 | { | |
111 | return fCenter->GetRow(); | |
112 | } | |
113 | else | |
114 | { | |
115 | return 0; | |
116 | } | |
117 | } | |
118 | /////////////////////////////////////////////////////////////////////////// | |
119 | Int_t AliCalcluster::GetColumn() | |
120 | { | |
121 | // Provide the column number of the cluster center | |
122 | if (fCenter) | |
123 | { | |
124 | return fCenter->GetColumn(); | |
125 | } | |
126 | else | |
127 | { | |
128 | return 0; | |
129 | } | |
130 | } | |
131 | /////////////////////////////////////////////////////////////////////////// | |
132 | Float_t AliCalcluster::GetSignal(Int_t n) | |
133 | { | |
134 | // Provide the total signal of a module matrix of n modules around | |
135 | // the cluster center. | |
136 | // Example : n=9 --> total signal in the 3x3 matrix | |
137 | // 1 --> signal of central module | |
138 | // Note : n=0 provides the total cluster signal (Default) | |
139 | ||
140 | Float_t signal=-1; | |
141 | ||
142 | if (n == 0) signal=fSig; | |
143 | if (n == 1) signal=fSig11; | |
144 | if (n == 9) signal=fSig33; | |
145 | if (n == 25) signal=fSig55; | |
146 | ||
147 | if (signal > 0.) | |
148 | { | |
149 | return signal; | |
150 | } | |
151 | else | |
152 | { | |
153 | cout << " *AliCalcluster::GetSignal* Invalid argument n = " << n << endl; | |
154 | return 0; | |
155 | } | |
156 | } | |
157 | /////////////////////////////////////////////////////////////////////////// | |
158 | Int_t AliCalcluster::GetNmodules() | |
159 | { | |
160 | // Provide the number of modules in the cluster | |
161 | return fNmods; | |
162 | } | |
163 | /////////////////////////////////////////////////////////////////////////// | |
164 | Float_t AliCalcluster::GetRowDispersion() | |
165 | { | |
166 | // Provide the normalised row dispersion of the cluster | |
167 | if (fSig > 0.) | |
168 | { | |
169 | return fRowdisp/fSig; | |
170 | } | |
171 | else | |
172 | { | |
173 | return 0.; | |
174 | } | |
175 | } | |
176 | /////////////////////////////////////////////////////////////////////////// | |
177 | Float_t AliCalcluster::GetColumnDispersion() | |
178 | { | |
179 | // Provide the normalised column dispersion of the cluster | |
180 | if (fSig > 0.) | |
181 | { | |
182 | return fColdisp/fSig; | |
183 | } | |
184 | else | |
185 | { | |
186 | return 0.; | |
187 | } | |
188 | } | |
189 | /////////////////////////////////////////////////////////////////////////// | |
190 | void AliCalcluster::Start(AliCalmodule& m) | |
191 | { | |
959fbac5 | 192 | // Reset cluster data and start with module m. |
f40f8fbd | 193 | // A module can only start a cluster when it contains a signal, |
194 | // has not been used in a cluster yet, and is not declared dead. | |
195 | // | |
196 | // Note : | |
197 | // It is advised NOT to start a cluster with modules situated at a detector edge. | |
198 | // This feature is automatically checked when using the built-in clustering | |
199 | // of AliCalorimeter. | |
d88f97cc | 200 | |
f40f8fbd | 201 | Ali3Vector r; |
d88f97cc | 202 | |
f40f8fbd | 203 | if (m.GetClusteredSignal()>0. && m.GetDeadValue()==0) |
d88f97cc | 204 | { |
205 | fCenter=&m; | |
f40f8fbd | 206 | r=m.GetPosition(); |
207 | SetPosition(r); | |
d88f97cc | 208 | fSig=m.GetSignal(); |
209 | fNmods=1; | |
210 | fSig11=m.GetSignal(); | |
211 | fSig33=m.GetSignal(); | |
212 | fSig55=m.GetSignal(); | |
213 | fRowdisp=0.; | |
214 | fColdisp=0.; | |
215 | m.SetClusteredSignal(0.); // mark module as used in cluster | |
216 | } | |
217 | else | |
218 | { | |
219 | fCenter=0; | |
f40f8fbd | 220 | SetPosition(r); |
d88f97cc | 221 | fSig=0.; |
222 | fNmods=0; | |
223 | fSig11=0.; | |
224 | fSig33=0.; | |
225 | fSig55=0.; | |
226 | fRowdisp=0.; | |
227 | fColdisp=0.; | |
228 | } | |
229 | } | |
230 | /////////////////////////////////////////////////////////////////////////// | |
231 | void AliCalcluster::Add(AliCalmodule& m) | |
232 | { | |
f40f8fbd | 233 | // Add module data to the cluster. |
234 | // Dead modules are NOT added to the cluster. | |
d88f97cc | 235 | |
236 | Float_t signal=m.GetClusteredSignal(); | |
237 | ||
f40f8fbd | 238 | if (signal>0. && m.GetDeadValue()==0) // only add unused modules |
d88f97cc | 239 | { |
240 | fSig+=signal; | |
241 | fNmods+=1; | |
242 | Int_t drow=int(fabs(double(GetRow()-m.GetRow()))); // row distance to center | |
243 | Int_t dcol=int(fabs(double(GetColumn()-m.GetColumn()))); // column distance to center | |
244 | if ((drow < 2) && (dcol < 2)) fSig33+=signal; | |
245 | if ((drow < 3) && (dcol < 3)) fSig55+=signal; | |
246 | fRowdisp+=signal*float(drow*drow); | |
247 | fColdisp+=signal*float(dcol*dcol); | |
248 | m.SetClusteredSignal(0.); // mark module as used in cluster | |
249 | } | |
250 | } | |
251 | /////////////////////////////////////////////////////////////////////////// | |
252 | void AliCalcluster::AddVetoSignal(Float_t* r,TString f,Float_t s) | |
253 | { | |
959fbac5 | 254 | // Associate an (extrapolated) AliSignal at location r as veto to the cluster. |
255 | // The signal value s indicates the confidence level of hit association | |
256 | // and has to be provided by the user. | |
d88f97cc | 257 | // Note : The default signal value (s) is 0 |
258 | if (!fVetos) | |
259 | { | |
260 | fNvetos=0; | |
261 | fVetos=new TObjArray(); | |
262 | } | |
263 | ||
959fbac5 | 264 | fVetos->Add(new AliSignal(1)); |
d88f97cc | 265 | fNvetos++; |
266 | ||
267 | ((AliSignal*)fVetos->At(fNvetos-1))->SetPosition(r,f); | |
268 | ((AliSignal*)fVetos->At(fNvetos-1))->SetSignal(s); | |
269 | } | |
270 | /////////////////////////////////////////////////////////////////////////// | |
271 | Int_t AliCalcluster::GetNvetos() | |
272 | { | |
273 | // Provide the number of veto signals associated to the cluster | |
274 | return fNvetos; | |
275 | } | |
276 | /////////////////////////////////////////////////////////////////////////// | |
277 | AliSignal* AliCalcluster::GetVetoSignal(Int_t i) | |
278 | { | |
959fbac5 | 279 | // Provide access to the i-th veto signal of this cluster. |
280 | // Note : The first hit corresponds to i=1. | |
d88f97cc | 281 | |
282 | if (i>0 && i<=fNvetos) | |
283 | { | |
284 | return (AliSignal*)fVetos->At(i-1); | |
285 | } | |
286 | else | |
287 | { | |
288 | cout << " *AliCalcluster::GetVetoSignal* Signal number " << i | |
289 | << " out of range." << endl; | |
290 | cout << " --- First signal (if any) returned." << endl; | |
291 | return (AliSignal*)fVetos->At(0); | |
292 | } | |
293 | } | |
294 | /////////////////////////////////////////////////////////////////////////// | |
959fbac5 | 295 | Float_t AliCalcluster::GetVetoLevel() |
296 | { | |
297 | // Provide the confidence level of best associated veto signal. | |
298 | Float_t cl=0; | |
299 | Float_t clmax=0; | |
300 | if (fVetos) | |
301 | { | |
302 | for (Int_t i=0; i<fNvetos; i++) | |
303 | { | |
304 | cl=((AliSignal*)fVetos->At(i))->GetSignal(); | |
305 | if (cl>clmax) clmax=cl; | |
306 | } | |
307 | } | |
308 | return clmax; | |
309 | } | |
310 | /////////////////////////////////////////////////////////////////////////// | |
311 | Int_t AliCalcluster::HasVetoHit(Double_t cl) | |
312 | { | |
313 | // Investigate if cluster has an associated veto hit with conf. level > cl. | |
314 | // Returns 1 if there is such an associated veto hit, otherwise returns 0. | |
315 | // Note : This function is faster than GetVetoLevel(). | |
316 | if (fVetos) | |
317 | { | |
318 | for (Int_t i=0; i<fNvetos; i++) | |
319 | { | |
320 | if (((AliSignal*)fVetos->At(i))->GetSignal() > cl) return 1; | |
321 | } | |
322 | } | |
323 | return 0; | |
324 | } | |
325 | /////////////////////////////////////////////////////////////////////////// |