fastjet 2.4.5
pxcone_example.cc
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00001 //STARTHEADER
00002 // $Id: pxcone_example.cc 939 2007-11-08 12:18:08Z salam $
00003 //
00004 // Copyright (c) 2005-2006, Matteo Cacciari and Gavin Salam
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
00011 //  the Free Software Foundation; either version 2 of the License, or
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
00017 //  include a citation to the FastJet paper.
00018 //
00019 //  FastJet is distributed in the hope that it will be useful,
00020 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
00021 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00022 //  GNU General Public License for more details.
00023 //
00024 //  You should have received a copy of the GNU General Public License
00025 //  along with FastJet; if not, write to the Free Software
00026 //  Foundation, Inc.:
00027 //      59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00028 //----------------------------------------------------------------------
00029 //ENDHEADER
00030 
00031 //----------------------------------------------------------------------
00032 // example program to illustrate the use of the pxcone plugin
00033 //
00034 // Compile it with: make pxcone_example
00035 // run it with    : ./pxcone_example < data/single-event.dat
00036 //
00037 // When compiling it make sure that you've modified ../../Makefile
00038 // appropriately to get the relevant fortran libraries
00039 //
00040 //----------------------------------------------------------------------
00041 
00042 #include "run_jet_finder.hh"
00043 
00044 // get info on how fastjet was configured
00045 #include "fastjet/config.h"
00046 
00047 #ifdef ENABLE_PLUGIN_PXCONE
00048 #  include "fastjet/PxConePlugin.hh"
00049 #else
00050 #  error "PxConePlugin not configured according to config.h"
00051 #endif
00052 
00053 #include<vector>
00054 #include<iostream>
00055 using namespace std;
00056 
00057 int main(int argc, char** argv) {
00058 
00059   
00060   // define a plugin point
00061   fastjet::JetDefinition::Plugin * plugin;
00062 
00063   // allocate a new plugin
00064   double cone_radius = 0.7;
00065   double min_jet_energy = 5.0;
00066   double overlap_threshold = 0.5;
00067   bool   E_scheme_jets = false;
00068   plugin = new fastjet::PxConePlugin (cone_radius, min_jet_energy, 
00069                                       overlap_threshold, E_scheme_jets);
00070 
00071   // create a jet-definition based on the plugin
00072   fastjet::JetDefinition jet_def(plugin);
00073 
00074   // call the example routine that runs with arbitrary jet definitions
00075   vector<fastjet::PseudoJet> particles;
00076   read_input_particles(cin, particles);
00077   run_jet_finder(particles, jet_def);
00078 
00079   // clean up plugin memory.
00080   delete plugin;
00081 }
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