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c13ab450 | 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 | #include "AliMUONPreClusterFinderV3.h" | |
19 | ||
20 | #include "AliLog.h" | |
21 | #include "AliMUONCluster.h" | |
22 | #include "AliMpVSegmentation.h" | |
9e41a340 | 23 | #include "TObjArray.h" |
c13ab450 | 24 | #include "AliMpArea.h" |
25 | #include "TVector2.h" | |
26 | #include "AliMUONPad.h" | |
27 | #include "AliMUONVDigit.h" | |
28 | #include "AliMUONVDigitStore.h" | |
29 | #include <Riostream.h> | |
30 | //#include "AliCodeTimer.h" | |
31 | ||
3d1463c8 | 32 | //----------------------------------------------------------------------------- |
c13ab450 | 33 | /// \class AliMUONPreClusterFinderV3 |
34 | /// | |
35 | /// Implementation of AliMUONVClusterFinder | |
36 | /// | |
37 | /// This version uses a 2 steps approach : | |
38 | /// | |
39 | /// we first clusterize each cathode independently to form proto-preclusters, | |
40 | /// and then we try to "merge" proto-preclusters from the two cathodes | |
41 | /// when thoses proto-preclusters overlap, thus ending up with preclusters | |
42 | /// spanning the two cathodes. | |
43 | /// | |
44 | /// This implementation, on the contrary to PreClusterFinder or PreClusterFinderV2 | |
45 | /// should not depend on the order of the input digits. | |
46 | /// | |
47 | /// \author Laurent Aphecetche | |
3d1463c8 | 48 | //----------------------------------------------------------------------------- |
c13ab450 | 49 | |
50 | ClassImp(AliMUONPreClusterFinderV3) | |
51 | ||
c13ab450 | 52 | //_____________________________________________________________________________ |
53 | AliMUONPreClusterFinderV3::AliMUONPreClusterFinderV3() | |
54 | : AliMUONVClusterFinder(), | |
55 | fClusters(new TClonesArray("AliMUONCluster",10)), | |
72dae9ff | 56 | fkSegmentations(0x0), |
24935e58 | 57 | fPads(0x0), |
c13ab450 | 58 | fDetElemId(0), |
59 | fIterator(0x0) | |
60 | { | |
61 | /// ctor | |
13242232 | 62 | AliInfo(""); |
c13ab450 | 63 | for ( Int_t i = 0; i < 2; ++i ) |
64 | { | |
c13ab450 | 65 | fPreClusters[i] = new TClonesArray("AliMUONCluster",10); |
66 | } | |
67 | } | |
68 | ||
69 | //_____________________________________________________________________________ | |
70 | AliMUONPreClusterFinderV3::~AliMUONPreClusterFinderV3() | |
71 | { | |
24935e58 | 72 | /// dtor |
c13ab450 | 73 | delete fClusters; |
74 | for ( Int_t i = 0; i < 2; ++i ) | |
75 | { | |
c13ab450 | 76 | delete fPreClusters[i]; |
77 | } | |
78 | } | |
79 | ||
80 | //_____________________________________________________________________________ | |
81 | Bool_t | |
82 | AliMUONPreClusterFinderV3::UsePad(const AliMUONPad& pad) | |
83 | { | |
84 | /// Add a pad to the list of pads to be considered | |
85 | if ( pad.DetElemId() != fDetElemId ) | |
86 | { | |
87 | AliError(Form("Cannot add pad from DE %d to this cluster finder which is " | |
88 | "currently dealing with DE %d",pad.DetElemId(),fDetElemId)); | |
89 | return kFALSE; | |
90 | } | |
91 | ||
9e41a340 | 92 | AliMUONPad* p = new AliMUONPad(pad); |
c13ab450 | 93 | p->SetClusterId(-1); |
9e41a340 | 94 | fPads[pad.Cathode()]->Add(p); |
c13ab450 | 95 | return kTRUE; |
96 | } | |
97 | ||
98 | //_____________________________________________________________________________ | |
99 | Bool_t | |
24935e58 | 100 | AliMUONPreClusterFinderV3::Prepare(Int_t detElemId, |
9e41a340 | 101 | TObjArray* pads[2], |
24935e58 | 102 | const AliMpArea& area, |
103 | const AliMpVSegmentation* seg[2]) | |
c13ab450 | 104 | { |
105 | /// Prepare for clustering, by giving access to segmentations and digit lists | |
c13ab450 | 106 | |
24935e58 | 107 | if ( area.IsValid() ) |
108 | { | |
109 | AliError("Handling of area not yet implemented for this class. Please check."); | |
110 | } | |
111 | ||
72dae9ff | 112 | fkSegmentations = seg; |
24935e58 | 113 | fPads = pads; |
c13ab450 | 114 | |
115 | fClusters->Clear("C"); | |
116 | for ( Int_t i = 0; i < 2; ++i ) | |
117 | { | |
c13ab450 | 118 | fPreClusters[i]->Clear("C"); |
119 | } | |
120 | ||
24935e58 | 121 | fDetElemId = detElemId; |
c13ab450 | 122 | |
c13ab450 | 123 | if ( fPads[0]->GetLast() < 0 && fPads[1]->GetLast() < 0 ) |
124 | { | |
125 | // no pad at all, nothing to do... | |
126 | return kFALSE; | |
127 | } | |
128 | ||
129 | MakeCathodePreClusters(0); | |
130 | MakeCathodePreClusters(1); | |
131 | MakeClusters(); | |
132 | ||
133 | delete fIterator; | |
134 | fIterator = fClusters->MakeIterator(); | |
135 | ||
136 | return kTRUE; | |
137 | } | |
138 | ||
139 | //_____________________________________________________________________________ | |
140 | void | |
141 | AliMUONPreClusterFinderV3::DumpPreClusters() const | |
142 | { | |
143 | /// Dump preclusters | |
144 | AliMUONCluster *c; | |
145 | TIter next0(fPreClusters[0]); | |
146 | TIter next1(fPreClusters[1]); | |
147 | cout << "Cath0" << endl; | |
148 | while ( ( c = static_cast<AliMUONCluster*>(next0())) ) | |
149 | { | |
150 | cout << c->AsString().Data() << endl; | |
151 | } | |
152 | cout << "Cath1" << endl; | |
153 | while ( ( c = static_cast<AliMUONCluster*>(next1())) ) | |
154 | { | |
155 | cout << c->AsString().Data() << endl; | |
156 | } | |
157 | } | |
158 | ||
159 | //_____________________________________________________________________________ | |
160 | void | |
161 | AliMUONPreClusterFinderV3::AddPreCluster(AliMUONCluster& cluster, AliMUONCluster* preCluster) | |
162 | { | |
163 | /// Add a pad to a cluster | |
164 | ||
165 | AliMUONCluster a(*preCluster); | |
166 | ||
167 | Int_t cathode = preCluster->Cathode(); | |
1e875d50 | 168 | if ( cathode < 0 ) { |
169 | AliError(Form("Cathod undefined: %d",cathode)); | |
170 | AliFatal(""); | |
5d48f035 | 171 | return; |
1e875d50 | 172 | } |
173 | ||
c13ab450 | 174 | if ( cathode <=1 && !fPreClusters[cathode]->Remove(preCluster) ) |
175 | { | |
176 | AliError(Form("Could not remove %s from preclusters[%d]", | |
177 | preCluster->AsString().Data(),cathode)); | |
178 | StdoutToAliDebug(1,DumpPreClusters()); | |
179 | AliFatal(""); | |
5d48f035 | 180 | return; |
c13ab450 | 181 | } |
182 | ||
183 | cluster.AddCluster(a); | |
184 | ||
185 | // loop on the *other* cathode | |
186 | TIter next(fPreClusters[1-cathode]); | |
187 | AliMUONCluster* testCluster; | |
188 | ||
189 | while ( ( testCluster = static_cast<AliMUONCluster*>(next()))) | |
190 | { | |
191 | if ( AliMUONCluster::AreOverlapping(a,*testCluster) ) | |
192 | { | |
193 | AddPreCluster(cluster,testCluster); | |
194 | } | |
195 | } | |
196 | } | |
197 | ||
198 | ||
199 | //_____________________________________________________________________________ | |
200 | void | |
201 | AliMUONPreClusterFinderV3::AddPad(AliMUONCluster& cluster, AliMUONPad* pad) | |
202 | { | |
203 | /// Add a pad to a cluster | |
204 | AliMUONPad* addedPad = cluster.AddPad(*pad); | |
205 | ||
206 | Int_t cathode = pad->Cathode(); | |
9e41a340 | 207 | TObjArray& padArray = *fPads[cathode]; |
ed90feae | 208 | delete padArray.Remove(pad); |
209 | ||
c13ab450 | 210 | TIter next(&padArray); |
211 | AliMUONPad* testPad; | |
212 | ||
213 | while ( ( testPad = static_cast<AliMUONPad*>(next()))) | |
214 | { | |
215 | if ( AliMUONPad::AreNeighbours(*testPad,*addedPad) ) | |
216 | { | |
217 | AddPad(cluster,testPad); | |
218 | } | |
219 | } | |
220 | } | |
221 | ||
222 | //_____________________________________________________________________________ | |
223 | AliMUONCluster* | |
224 | AliMUONPreClusterFinderV3::NextCluster() | |
225 | { | |
226 | /// Returns the next cluster | |
227 | ||
228 | return static_cast<AliMUONCluster*>(fIterator->Next()); | |
229 | } | |
230 | ||
231 | //_____________________________________________________________________________ | |
232 | void | |
233 | AliMUONPreClusterFinderV3::MakeClusters() | |
234 | { | |
235 | /// Associate (proto)preclusters to form (pre)clusters | |
236 | ||
99c136e1 | 237 | // AliCodeTimerAuto("",0) |
c13ab450 | 238 | |
239 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
240 | { | |
241 | TClonesArray& preclusters = *(fPreClusters[cathode]); | |
242 | ||
243 | TIter next(&preclusters); | |
244 | AliMUONCluster* preCluster(0x0); | |
245 | ||
246 | while ( ( preCluster = static_cast<AliMUONCluster*>(next()) ) ) | |
247 | { | |
248 | Int_t id(fClusters->GetLast()+1); | |
249 | AliMUONCluster* cluster = new((*fClusters)[id]) AliMUONCluster; | |
250 | cluster->SetUniqueID(id); | |
251 | AddPreCluster(*cluster,preCluster); | |
252 | } | |
253 | } | |
254 | } | |
255 | ||
256 | //_____________________________________________________________________________ | |
257 | void | |
258 | AliMUONPreClusterFinderV3::MakeCathodePreClusters(Int_t cathode) | |
259 | { | |
260 | /// Build (proto)preclusters from digits on a given cathode | |
261 | ||
99c136e1 | 262 | // AliCodeTimerAuto(Form("Cathode %d",cathode),0) |
c13ab450 | 263 | |
264 | while ( fPads[cathode]->GetLast() > 0 ) | |
265 | { | |
266 | TIter next(fPads[cathode]); | |
267 | AliMUONPad* pad = static_cast<AliMUONPad*>(next()); | |
268 | ||
269 | if (!pad) AliFatal(""); | |
270 | ||
271 | Int_t id = fPreClusters[cathode]->GetLast()+1; | |
272 | AliMUONCluster* cluster = new ((*fPreClusters[cathode])[id]) AliMUONCluster; | |
273 | cluster->SetUniqueID(id); | |
274 | ||
275 | // Builds (recursively) a cluster on first cathode only | |
276 | AddPad(*cluster,pad); | |
277 | ||
278 | if ( cluster->Multiplicity() <= 1 ) | |
279 | { | |
280 | if ( cluster->Multiplicity() == 0 ) | |
281 | { | |
282 | // no pad is suspicious | |
283 | AliWarning("Got an empty cluster..."); | |
284 | } | |
285 | // else only 1 pad (not suspicious, but kind of useless, probably noise) | |
286 | // so we remove it from our list | |
287 | fPreClusters[cathode]->Remove(cluster); | |
288 | // then proceed further | |
289 | } | |
290 | } | |
291 | ||
292 | } |