1 | //STARTHEADER
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2 | // $Id: NestedDefsPlugin.hh 2577 2011-09-13 15:11:38Z salam $
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3 | //
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4 | // Copyright (c) 2007-2011, 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 __NESTEDALGSPLUGIN_HH__
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30 | #define __NESTEDALGSPLUGIN_HH__
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31 |
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32 | #include "fastjet/JetDefinition.hh"
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33 | #include <list>
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34 | #include <memory>
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35 | #include <cmath>
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36 |
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37 | // questionable whether this should be in fastjet namespace or not...
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38 | FASTJET_BEGIN_NAMESPACE // defined in fastjet/internal/base.hh
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39 |
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40 | // another forward declaration to reduce includes
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41 | class PseudoJet;
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42 |
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43 | //----------------------------------------------------------------------
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44 | //
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45 | /// @ingroup plugins
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46 | /// \class NestedDefsPlugin
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47 | /// Plugin to run multiple jet definitions successively (plugin for fastjet v2.4 upwards)
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48 | ///
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49 | /// NestedAglsPlugin is a plugin for fastjet (v2.4 upwards) that, given
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50 | /// a list of jet definitions, performs the clustering by feeding the
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51 | /// particles to the first algorithm and then, successively feeding the
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52 | /// output to the next algorithm in the list.
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53 | //
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54 | class NestedDefsPlugin : public JetDefinition::Plugin {
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55 | public:
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56 | /// Main constructor for the NestedDefs Plugin class.
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57 | ///
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58 | /// The argument is an initialised list of jet algorithms
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59 | NestedDefsPlugin (std::list<JetDefinition> &defs) :
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60 | _defs(defs){}
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61 |
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62 | /// copy constructor
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63 | NestedDefsPlugin (const NestedDefsPlugin & plugin) {
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64 | *this = plugin;
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65 | }
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66 |
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67 | // the things that are required by base class
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68 | virtual std::string description () const;
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69 | virtual void run_clustering(ClusterSequence &) const;
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70 | /// the plugin mechanism's standard way of accessing the jet radius
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71 | /// here we return the R of the last alg in the list
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72 | virtual double R() const {return _defs.rbegin()->R();}
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73 |
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74 | private:
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75 | std::list<JetDefinition> _defs;
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76 | };
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77 |
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78 | FASTJET_END_NAMESPACE // defined in fastjet/internal/base.hh
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79 |
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80 | #endif // __SISCONEPLUGIN_HH__
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81 |
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