1 | //STARTHEADER |
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2 | // $Id: ClusterSequence1GhostPassiveArea.hh 2687 2011-11-14 11:17:51Z soyez $ |
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3 | // |
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4 | // Copyright (c) 2005-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez |
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5 | // |
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6 | //---------------------------------------------------------------------- |
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7 | // This file is part of FastJet. |
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8 | // |
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9 | // FastJet is free software; you can redistribute it and/or modify |
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10 | // it under the terms of the GNU General Public License as published by |
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11 | // the Free Software Foundation; either version 2 of the License, or |
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12 | // (at your option) any later version. |
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13 | // |
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14 | // The algorithms that underlie FastJet have required considerable |
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15 | // development and are described in hep-ph/0512210. If you use |
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16 | // FastJet as part of work towards a scientific publication, please |
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17 | // include a citation to the FastJet paper. |
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18 | // |
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19 | // FastJet is distributed in the hope that it will be useful, |
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20 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
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21 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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22 | // GNU General Public License for more details. |
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23 | // |
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24 | // You should have received a copy of the GNU General Public License |
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25 | // along with FastJet. If not, see <http://www.gnu.org/licenses/>. |
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26 | //---------------------------------------------------------------------- |
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27 | //ENDHEADER |
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28 | |
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29 | #ifndef __FASTJET_CLUSTERSEQUENCE1GHOSTPASSIVEAREA_HH__ |
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30 | #define __FASTJET_CLUSTERSEQUENCE1GHOSTPASSIVEAREA_HH__ |
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31 | |
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32 | |
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33 | #include "fastjet/PseudoJet.hh" |
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34 | #include "fastjet/ClusterSequenceAreaBase.hh" |
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35 | #include "fastjet/ClusterSequenceActiveArea.hh" |
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36 | #include<iostream> |
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37 | #include<vector> |
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38 | |
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39 | FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh |
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40 | |
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41 | //using namespace std; |
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42 | |
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43 | /// @ingroup sec_area_classes |
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44 | /// \class ClusterSequence1GhostPassiveArea |
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45 | /// Like ClusterSequence with computation of the passive jet area by |
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46 | /// adding a single ghost |
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47 | /// |
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48 | /// Class that behaves essentially like ClusterSequence except |
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49 | /// that it also provides access to the area of a jet (which |
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50 | /// will be a random quantity... Figure out what to do about seeds |
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51 | /// later...) |
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52 | /// |
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53 | /// This class should not be used directly. Rather use |
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54 | /// ClusterSequenceArea |
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55 | class ClusterSequence1GhostPassiveArea : public ClusterSequenceActiveArea { |
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56 | public: |
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57 | |
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58 | ClusterSequence1GhostPassiveArea() {} |
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59 | |
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60 | /// constructor based on JetDefinition and 1GhostPassiveAreaSpec |
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61 | template<class L> ClusterSequence1GhostPassiveArea |
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62 | (const std::vector<L> & pseudojets, |
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63 | const JetDefinition & jet_def_in, |
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64 | const GhostedAreaSpec & area_spec, |
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65 | const bool & writeout_combinations = false) ; |
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66 | |
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67 | /// return an estimate for the number of empty jets -- one uses the |
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68 | /// AreaBase one rather than the ActiveArea one (which for which we |
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69 | /// do not have the information). |
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70 | virtual double n_empty_jets(const Selector & selector) const { |
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71 | return ClusterSequenceAreaBase::n_empty_jets(selector); |
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72 | } |
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73 | |
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74 | protected: |
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75 | /// does the initialisation and running specific to the passive |
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76 | /// areas class |
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77 | void _initialise_and_run_1GPA (const JetDefinition & jet_def_in, |
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78 | const GhostedAreaSpec & area_spec, |
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79 | const bool & writeout_combinations = false); |
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80 | |
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81 | private: |
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82 | |
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83 | void _run_1GPA(const GhostedAreaSpec & area_spec); |
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84 | }; |
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85 | |
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86 | |
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87 | |
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88 | |
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89 | template<class L> ClusterSequence1GhostPassiveArea::ClusterSequence1GhostPassiveArea |
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90 | (const std::vector<L> & pseudojets, |
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91 | const JetDefinition & jet_def_in, |
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92 | const GhostedAreaSpec & area_spec, |
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93 | const bool & writeout_combinations) { |
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94 | |
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95 | // transfer the initial jets (type L) into our own array |
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96 | _transfer_input_jets(pseudojets); |
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97 | |
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98 | // run the clustering for passive areas |
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99 | _initialise_and_run_1GPA(jet_def_in, area_spec, writeout_combinations); |
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100 | |
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101 | } |
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102 | |
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103 | |
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104 | |
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105 | FASTJET_END_NAMESPACE |
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106 | |
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107 | #endif // __FASTJET_CLUSTERSEQUENCE1GHOSTPASSIVEAREA_HH__ |
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