FastJet 3.0beta1
ClusterSequencePassiveArea.hh
00001 //STARTHEADER
00002 // $Id: ClusterSequencePassiveArea.hh 2041 2011-04-12 13:33:58Z soyez $
00003 //
00004 // Copyright (c) 2005-2007, Matteo Cacciari, Gavin Salam and Gregory Soyez
00005 //
00006 //----------------------------------------------------------------------
00007 // This file is part of FastJet.
00008 //
00009 //  FastJet is free software; you can redistribute it and/or modify
00010 //  it under the terms of the GNU General Public License as published by
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00012 //  (at your option) any later version.
00013 //
00014 //  The algorithms that underlie FastJet have required considerable
00015 //  development and are described in hep-ph/0512210. If you use
00016 //  FastJet as part of work towards a scientific publication, please
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00018 //
00019 //  FastJet is distributed in the hope that it will be useful,
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00022 //  GNU General Public License for more details.
00023 //
00024 //  You should have received a copy of the GNU General Public License
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00026 //  Foundation, Inc.:
00027 //      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00028 //----------------------------------------------------------------------
00029 //ENDHEADER
00030 
00031 #ifndef __FASTJET_CLUSTERSEQUENCEPASSIVEAREA_HH__
00032 #define __FASTJET_CLUSTERSEQUENCEPASSIVEAREA_HH__
00033 
00034 
00035 #include "fastjet/PseudoJet.hh"
00036 #include "fastjet/ClusterSequence1GhostPassiveArea.hh"
00037 #include<iostream>
00038 #include<vector>
00039 
00040 FASTJET_BEGIN_NAMESPACE      // defined in fastjet/internal/base.hh
00041 
00042 //using namespace std;
00043 
00044 /// @ingroup sec_area_classes
00045 /// \class ClusterSequencePassiveArea
00046 /// Like ClusterSequence with computation of the passive jet area
00047 ///
00048 /// Class that behaves essentially like ClusterSequence except
00049 /// that it also provides access to the area of a jet (which
00050 /// will be a random quantity... Figure out what to do about seeds 
00051 /// later...)
00052 ///
00053 /// This class should not be used directly. Rather use
00054 /// ClusterSequenceArea with the appropriate AreaDefinition
00055 class ClusterSequencePassiveArea : public ClusterSequence1GhostPassiveArea {
00056 public:
00057 
00058   /// constructor based on JetDefinition and PassiveAreaSpec
00059   template<class L> ClusterSequencePassiveArea
00060          (const std::vector<L> & pseudojets, 
00061           const JetDefinition & jet_def,
00062           const GhostedAreaSpec & area_spec,
00063           const bool & writeout_combinations = false) ;
00064 
00065   /// return an empty area that's appropriate to the passive area
00066   /// determination carried out
00067   virtual double empty_area(const Selector & selector) const;
00068 
00069 private:
00070 
00071   /// does the initialisation and running specific to the passive
00072   /// areas class
00073   void _initialise_and_run_PA (const JetDefinition & jet_def,
00074                                const GhostedAreaSpec & area_spec,
00075                                const bool & writeout_combinations = false);
00076 
00077 };
00078 
00079 
00080 
00081 
00082 template<class L> ClusterSequencePassiveArea::ClusterSequencePassiveArea 
00083 (const std::vector<L> & pseudojets, 
00084  const JetDefinition & jet_def,
00085  const GhostedAreaSpec & area_spec,
00086  const bool & writeout_combinations) {
00087 
00088   // transfer the initial jets (type L) into our own array
00089   _transfer_input_jets(pseudojets);
00090 
00091   // run the clustering for passive areas
00092   _initialise_and_run_PA(jet_def, area_spec, writeout_combinations);
00093 
00094 }
00095 
00096 
00097   
00098 FASTJET_END_NAMESPACE
00099 
00100 #endif // __FASTJET_CLUSTERSEQUENCEPASSIVEAREA_HH__
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