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1 | //-*- Mode: C++ -*- | |
2 | // $Id: AliHLTJETConeJetCandidate.cxx $ | |
3 | //************************************************************************** | |
4 | //* This file is property of and copyright by the ALICE HLT Project * | |
5 | //* ALICE Experiment at CERN, All rights reserved. * | |
6 | //* * | |
7 | //* Primary Authors: Jochen Thaeder <thaeder@kip.uni-heidelberg.de> * | |
8 | //* for The ALICE HLT Project. * | |
9 | //* * | |
10 | //* Permission to use, copy, modify and distribute this software and its * | |
11 | //* documentation strictly for non-commercial purposes is hereby granted * | |
12 | //* without fee, provided that the above copyright notice appears in all * | |
13 | //* copies and that both the copyright notice and this permission notice * | |
14 | //* appear in the supporting documentation. The authors make no claims * | |
15 | //* about the suitability of this software for any purpose. It is * | |
16 | //* provided "as is" without express or implied warranty. * | |
17 | //************************************************************************** | |
18 | ||
19 | /** @file AliHLTJETConeJetCandidate.cxx | |
20 | @author Jochen Thaeder | |
21 | @date | |
22 | @brief Jet candidate of the cone finder | |
23 | */ | |
24 | ||
25 | // see header file for class documentation | |
26 | // or | |
27 | // refer to README to build package | |
28 | // or | |
29 | // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt | |
30 | ||
31 | #include "AliHLTJETConeJetCandidate.h" | |
32 | #include "AliHLTJETConeEtaPhiCell.h" | |
33 | ||
34 | using namespace std; | |
35 | ||
36 | ||
37 | /** ROOT macro for the implementation of ROOT specific class methods */ | |
38 | ClassImp(AliHLTJETConeJetCandidate) | |
39 | ||
40 | /* | |
41 | * --------------------------------------------------------------------------------- | |
42 | * Constructor / Destructor | |
43 | * --------------------------------------------------------------------------------- | |
44 | */ | |
45 | ||
46 | //################################################################################## | |
47 | AliHLTJETConeJetCandidate::AliHLTJETConeJetCandidate() : | |
48 | fSeedCellIdx(0), | |
49 | fSeedEtaIdx(0), | |
50 | fSeedPhiIdx(0), | |
51 | fSeedEta(0.), | |
52 | fSeedPhi(0.), | |
53 | fSeedPt(0.), | |
54 | fEta(0.), | |
55 | fPhi(0.), | |
56 | fPt(0.), | |
57 | fNTracks(0), | |
58 | fUseWholeCell(kTRUE), | |
59 | fConeRadius2(0.) { | |
60 | // see header file for class documentation | |
61 | // or | |
62 | // refer to README to build package | |
63 | // or | |
64 | // visit http://web.ift.uib.no/~kjeks/doc/alice-hlt | |
65 | } | |
66 | ||
67 | ||
68 | //################################################################################## | |
69 | AliHLTJETConeJetCandidate::AliHLTJETConeJetCandidate( const Float_t* aEtaPhi, | |
70 | const Int_t* aGridIdx, | |
71 | Float_t coneRadius, | |
72 | Bool_t useWholeCell ) : | |
73 | fSeedCellIdx(aGridIdx[kIdxPrimary]), | |
74 | fSeedEtaIdx(aGridIdx[kIdxEtaPrimary]), | |
75 | fSeedPhiIdx(aGridIdx[kIdxPhiPrimary]), | |
76 | fSeedEta(aEtaPhi[kIdxEta]), | |
77 | fSeedPhi(aEtaPhi[kIdxPhi]), | |
78 | fSeedPt(aEtaPhi[kIdxPt]), | |
79 | fEta(0.0), | |
80 | fPhi(0.0), | |
81 | fPt(0.0), | |
82 | fNTracks(0), | |
83 | fUseWholeCell(useWholeCell), | |
84 | fConeRadius2(coneRadius*coneRadius) { | |
85 | // see header file for class documentation | |
86 | } | |
87 | ||
88 | //################################################################################## | |
89 | AliHLTJETConeJetCandidate::~AliHLTJETConeJetCandidate() { | |
90 | // see header file for class documentation | |
91 | } | |
92 | ||
93 | /* | |
94 | * --------------------------------------------------------------------------------- | |
95 | * Process | |
96 | * --------------------------------------------------------------------------------- | |
97 | */ | |
98 | ||
99 | //################################################################################## | |
100 | Int_t AliHLTJETConeJetCandidate::AddCell( AliHLTJETConeEtaPhiCell* cell ) { | |
101 | // see header file for class documentation | |
102 | ||
103 | // -- use whole cell | |
104 | // ------------------- | |
105 | if ( fUseWholeCell ) { | |
106 | ||
107 | fPt += cell->GetPt(); | |
108 | fPhi += cell->GetPhi(); | |
109 | fEta += cell->GetEta(); | |
110 | fNTracks += cell->GetNTracks(); | |
111 | ||
112 | HLTDebug("Cell : eta: %f - phi: %f - pt: %f - nTracks: %d .", | |
113 | cell->GetEta(), cell->GetPhi(), cell->GetPt(), cell->GetNTracks() ); | |
114 | ||
115 | } // if ( fUseWholeCell ) { | |
116 | ||
117 | // -- radius compared to every track | |
118 | // ----------------------------------- | |
119 | else { | |
120 | ||
121 | HLTDebug("Check NTracks %d.", cell->GetNTracks()); | |
122 | ||
123 | TObjArray* trackList = cell->GetTrackList(); | |
124 | ||
125 | // -- Loop over all tracks in cell | |
126 | for ( Int_t iter = 0; iter < cell->GetNTracks(); iter++ ) { | |
127 | ||
128 | // -- MC particles | |
129 | if ( cell->GetTrackType() == kTrackMC ) { | |
130 | ||
131 | TParticle* particle = reinterpret_cast<TParticle*> ((*trackList)[iter]); | |
132 | ||
133 | // -- Check if in cone | |
134 | if ( ! InCone( particle->Eta(), particle->Phi() ) ) | |
135 | continue; | |
136 | ||
137 | fPt += particle->Pt(); | |
138 | fPhi += particle->Phi(); | |
139 | fEta += particle->Eta(); | |
140 | ++fNTracks; | |
141 | ||
142 | HLTDebug("Particle : eta: %f - phi: %f - pt: %f .", | |
143 | particle->Eta(), particle->Phi(), particle->Pt() ); | |
144 | ||
145 | } | |
146 | else if ( cell->GetTrackType() == kTrackESD ) { | |
147 | ||
148 | AliESDtrack* esdTrack = reinterpret_cast<AliESDtrack*> ((*trackList)[iter]); | |
149 | ||
150 | // -- Check if in cone | |
151 | if ( ! InCone( esdTrack->Eta(), esdTrack->Phi() ) ) | |
152 | continue; | |
153 | ||
154 | fPt += esdTrack->Pt(); | |
155 | fPhi += esdTrack->Phi(); | |
156 | fEta += esdTrack->Eta(); | |
157 | ++fNTracks; | |
158 | ||
159 | HLTDebug("ESDTrack : eta: %f - phi: %f - pt: %f .", | |
160 | esdTrack->Eta(), esdTrack->Phi(), esdTrack->Pt() ); | |
161 | } | |
162 | else { | |
163 | HLTError("Not implemented yet..."); | |
164 | } | |
165 | ||
166 | } // for ( Int_t iter = 0; iter > cell->GetNTracks(); iter++ ) { | |
167 | } | |
168 | ||
169 | return 0; | |
170 | } | |
171 | ||
172 | /* | |
173 | * --------------------------------------------------------------------------------- | |
174 | * Sort of JetCandidates | |
175 | * --------------------------------------------------------------------------------- | |
176 | */ | |
177 | ||
178 | //################################################################################## | |
179 | Int_t AliHLTJETConeJetCandidate::Compare( const TObject* obj) const { | |
180 | // see header file for class documentation | |
181 | ||
182 | if (this == obj ) | |
183 | return 0; | |
184 | ||
185 | AliHLTJETConeJetCandidate * cand = dynamic_cast<AliHLTJETConeJetCandidate*>(const_cast<TObject*>(obj)); | |
186 | if (cand) { | |
187 | if ( fSeedPt < cand->GetSeedPt() ) | |
188 | return 1; | |
189 | else | |
190 | return -1; | |
191 | } | |
192 | else | |
193 | return 0; | |
194 | } | |
195 | ||
196 | /* | |
197 | * --------------------------------------------------------------------------------- | |
198 | * Helper - private | |
199 | * --------------------------------------------------------------------------------- | |
200 | */ | |
201 | ||
202 | //################################################################################## | |
203 | Float_t AliHLTJETConeJetCandidate::GetDistance2( const Float_t eta1, const Float_t phi1, | |
204 | const Float_t eta2, const Float_t phi2) { | |
205 | // see header file for class documentation | |
206 | ||
207 | return ( (eta1-eta2)*(eta1-eta2) ) + ( (phi1-phi2)*(phi1-phi2) ); | |
208 | } | |
209 | ||
210 | //################################################################################## | |
211 | Bool_t AliHLTJETConeJetCandidate::InCone( Float_t eta, Float_t phi ) { | |
212 | // see header file for class documentation | |
213 | ||
214 | if ( GetDistance2(fSeedEta,fSeedPhi,eta,phi) <= fConeRadius2 ) | |
215 | return kTRUE; | |
216 | else | |
217 | return kFALSE; | |
218 | } |