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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 | |
cdd730d0 | 50 | using std::endl; |
51 | using std::cout; | |
c13ab450 | 52 | ClassImp(AliMUONPreClusterFinderV3) |
53 | ||
c13ab450 | 54 | //_____________________________________________________________________________ |
55 | AliMUONPreClusterFinderV3::AliMUONPreClusterFinderV3() | |
56 | : AliMUONVClusterFinder(), | |
57 | fClusters(new TClonesArray("AliMUONCluster",10)), | |
72dae9ff | 58 | fkSegmentations(0x0), |
24935e58 | 59 | fPads(0x0), |
c13ab450 | 60 | fDetElemId(0), |
61 | fIterator(0x0) | |
62 | { | |
63 | /// ctor | |
13242232 | 64 | AliInfo(""); |
c13ab450 | 65 | for ( Int_t i = 0; i < 2; ++i ) |
66 | { | |
c13ab450 | 67 | fPreClusters[i] = new TClonesArray("AliMUONCluster",10); |
68 | } | |
69 | } | |
70 | ||
71 | //_____________________________________________________________________________ | |
72 | AliMUONPreClusterFinderV3::~AliMUONPreClusterFinderV3() | |
73 | { | |
24935e58 | 74 | /// dtor |
c13ab450 | 75 | delete fClusters; |
76 | for ( Int_t i = 0; i < 2; ++i ) | |
77 | { | |
c13ab450 | 78 | delete fPreClusters[i]; |
79 | } | |
80 | } | |
81 | ||
82 | //_____________________________________________________________________________ | |
83 | Bool_t | |
84 | AliMUONPreClusterFinderV3::UsePad(const AliMUONPad& pad) | |
85 | { | |
86 | /// Add a pad to the list of pads to be considered | |
87 | if ( pad.DetElemId() != fDetElemId ) | |
88 | { | |
89 | AliError(Form("Cannot add pad from DE %d to this cluster finder which is " | |
90 | "currently dealing with DE %d",pad.DetElemId(),fDetElemId)); | |
91 | return kFALSE; | |
92 | } | |
93 | ||
9e41a340 | 94 | AliMUONPad* p = new AliMUONPad(pad); |
c13ab450 | 95 | p->SetClusterId(-1); |
9e41a340 | 96 | fPads[pad.Cathode()]->Add(p); |
c13ab450 | 97 | return kTRUE; |
98 | } | |
99 | ||
100 | //_____________________________________________________________________________ | |
101 | Bool_t | |
24935e58 | 102 | AliMUONPreClusterFinderV3::Prepare(Int_t detElemId, |
9e41a340 | 103 | TObjArray* pads[2], |
24935e58 | 104 | const AliMpArea& area, |
105 | const AliMpVSegmentation* seg[2]) | |
c13ab450 | 106 | { |
107 | /// Prepare for clustering, by giving access to segmentations and digit lists | |
c13ab450 | 108 | |
24935e58 | 109 | if ( area.IsValid() ) |
110 | { | |
111 | AliError("Handling of area not yet implemented for this class. Please check."); | |
112 | } | |
113 | ||
72dae9ff | 114 | fkSegmentations = seg; |
24935e58 | 115 | fPads = pads; |
c13ab450 | 116 | |
117 | fClusters->Clear("C"); | |
118 | for ( Int_t i = 0; i < 2; ++i ) | |
119 | { | |
c13ab450 | 120 | fPreClusters[i]->Clear("C"); |
121 | } | |
122 | ||
24935e58 | 123 | fDetElemId = detElemId; |
c13ab450 | 124 | |
c13ab450 | 125 | if ( fPads[0]->GetLast() < 0 && fPads[1]->GetLast() < 0 ) |
126 | { | |
127 | // no pad at all, nothing to do... | |
128 | return kFALSE; | |
129 | } | |
130 | ||
131 | MakeCathodePreClusters(0); | |
132 | MakeCathodePreClusters(1); | |
133 | MakeClusters(); | |
134 | ||
135 | delete fIterator; | |
136 | fIterator = fClusters->MakeIterator(); | |
137 | ||
138 | return kTRUE; | |
139 | } | |
140 | ||
141 | //_____________________________________________________________________________ | |
142 | void | |
143 | AliMUONPreClusterFinderV3::DumpPreClusters() const | |
144 | { | |
145 | /// Dump preclusters | |
146 | AliMUONCluster *c; | |
147 | TIter next0(fPreClusters[0]); | |
148 | TIter next1(fPreClusters[1]); | |
149 | cout << "Cath0" << endl; | |
150 | while ( ( c = static_cast<AliMUONCluster*>(next0())) ) | |
151 | { | |
152 | cout << c->AsString().Data() << endl; | |
153 | } | |
154 | cout << "Cath1" << endl; | |
155 | while ( ( c = static_cast<AliMUONCluster*>(next1())) ) | |
156 | { | |
157 | cout << c->AsString().Data() << endl; | |
158 | } | |
159 | } | |
160 | ||
161 | //_____________________________________________________________________________ | |
162 | void | |
163 | AliMUONPreClusterFinderV3::AddPreCluster(AliMUONCluster& cluster, AliMUONCluster* preCluster) | |
164 | { | |
165 | /// Add a pad to a cluster | |
166 | ||
167 | AliMUONCluster a(*preCluster); | |
168 | ||
169 | Int_t cathode = preCluster->Cathode(); | |
1e875d50 | 170 | if ( cathode < 0 ) { |
171 | AliError(Form("Cathod undefined: %d",cathode)); | |
172 | AliFatal(""); | |
5d48f035 | 173 | return; |
1e875d50 | 174 | } |
175 | ||
c13ab450 | 176 | if ( cathode <=1 && !fPreClusters[cathode]->Remove(preCluster) ) |
177 | { | |
178 | AliError(Form("Could not remove %s from preclusters[%d]", | |
179 | preCluster->AsString().Data(),cathode)); | |
180 | StdoutToAliDebug(1,DumpPreClusters()); | |
181 | AliFatal(""); | |
5d48f035 | 182 | return; |
c13ab450 | 183 | } |
184 | ||
185 | cluster.AddCluster(a); | |
186 | ||
187 | // loop on the *other* cathode | |
188 | TIter next(fPreClusters[1-cathode]); | |
189 | AliMUONCluster* testCluster; | |
190 | ||
191 | while ( ( testCluster = static_cast<AliMUONCluster*>(next()))) | |
192 | { | |
193 | if ( AliMUONCluster::AreOverlapping(a,*testCluster) ) | |
194 | { | |
195 | AddPreCluster(cluster,testCluster); | |
196 | } | |
197 | } | |
198 | } | |
199 | ||
200 | ||
201 | //_____________________________________________________________________________ | |
202 | void | |
203 | AliMUONPreClusterFinderV3::AddPad(AliMUONCluster& cluster, AliMUONPad* pad) | |
204 | { | |
205 | /// Add a pad to a cluster | |
206 | AliMUONPad* addedPad = cluster.AddPad(*pad); | |
207 | ||
208 | Int_t cathode = pad->Cathode(); | |
9e41a340 | 209 | TObjArray& padArray = *fPads[cathode]; |
ed90feae | 210 | delete padArray.Remove(pad); |
211 | ||
c13ab450 | 212 | TIter next(&padArray); |
213 | AliMUONPad* testPad; | |
214 | ||
215 | while ( ( testPad = static_cast<AliMUONPad*>(next()))) | |
216 | { | |
217 | if ( AliMUONPad::AreNeighbours(*testPad,*addedPad) ) | |
218 | { | |
219 | AddPad(cluster,testPad); | |
220 | } | |
221 | } | |
222 | } | |
223 | ||
224 | //_____________________________________________________________________________ | |
225 | AliMUONCluster* | |
226 | AliMUONPreClusterFinderV3::NextCluster() | |
227 | { | |
228 | /// Returns the next cluster | |
229 | ||
230 | return static_cast<AliMUONCluster*>(fIterator->Next()); | |
231 | } | |
232 | ||
233 | //_____________________________________________________________________________ | |
234 | void | |
235 | AliMUONPreClusterFinderV3::MakeClusters() | |
236 | { | |
237 | /// Associate (proto)preclusters to form (pre)clusters | |
238 | ||
99c136e1 | 239 | // AliCodeTimerAuto("",0) |
c13ab450 | 240 | |
241 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
242 | { | |
243 | TClonesArray& preclusters = *(fPreClusters[cathode]); | |
244 | ||
245 | TIter next(&preclusters); | |
246 | AliMUONCluster* preCluster(0x0); | |
247 | ||
248 | while ( ( preCluster = static_cast<AliMUONCluster*>(next()) ) ) | |
249 | { | |
250 | Int_t id(fClusters->GetLast()+1); | |
251 | AliMUONCluster* cluster = new((*fClusters)[id]) AliMUONCluster; | |
252 | cluster->SetUniqueID(id); | |
253 | AddPreCluster(*cluster,preCluster); | |
254 | } | |
255 | } | |
256 | } | |
257 | ||
258 | //_____________________________________________________________________________ | |
259 | void | |
260 | AliMUONPreClusterFinderV3::MakeCathodePreClusters(Int_t cathode) | |
261 | { | |
262 | /// Build (proto)preclusters from digits on a given cathode | |
263 | ||
99c136e1 | 264 | // AliCodeTimerAuto(Form("Cathode %d",cathode),0) |
c13ab450 | 265 | |
266 | while ( fPads[cathode]->GetLast() > 0 ) | |
267 | { | |
268 | TIter next(fPads[cathode]); | |
269 | AliMUONPad* pad = static_cast<AliMUONPad*>(next()); | |
270 | ||
271 | if (!pad) AliFatal(""); | |
272 | ||
273 | Int_t id = fPreClusters[cathode]->GetLast()+1; | |
274 | AliMUONCluster* cluster = new ((*fPreClusters[cathode])[id]) AliMUONCluster; | |
275 | cluster->SetUniqueID(id); | |
276 | ||
277 | // Builds (recursively) a cluster on first cathode only | |
278 | AddPad(*cluster,pad); | |
279 | ||
280 | if ( cluster->Multiplicity() <= 1 ) | |
281 | { | |
282 | if ( cluster->Multiplicity() == 0 ) | |
283 | { | |
284 | // no pad is suspicious | |
285 | AliWarning("Got an empty cluster..."); | |
286 | } | |
287 | // else only 1 pad (not suspicious, but kind of useless, probably noise) | |
288 | // so we remove it from our list | |
289 | fPreClusters[cathode]->Remove(cluster); | |
290 | // then proceed further | |
291 | } | |
292 | } | |
293 | ||
294 | } |