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plugins
CMSIterativeCone
fastjet
CMSIterativeConePlugin.hh
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//STARTHEADER
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// $Id: CMSIterativeConePlugin.hh 1508 2009-04-10 22:46:49Z soyez $
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//
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// Copyright (c) 2007-2011, Matteo Cacciari, Gavin P. Salam and Gregory Soyez
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//
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//----------------------------------------------------------------------
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// This file is part of FastJet.
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//
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// FastJet is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// The algorithms that underlie FastJet have required considerable
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// development and are described in hep-ph/0512210. If you use
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// FastJet as part of work towards a scientific publication, please
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// include a citation to the FastJet paper.
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//
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// FastJet is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with FastJet. If not, see <http://www.gnu.org/licenses/>.
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//----------------------------------------------------------------------
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//ENDHEADER
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#ifndef __CMSITERATIVECONEPLUGIN_HH__
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#define __CMSITERATIVECONEPLUGIN_HH__
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#include "fastjet/JetDefinition.hh"
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// questionable whether this should be in fastjet namespace or not...
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FASTJET_BEGIN_NAMESPACE
// defined in fastjet/internal/base.hh
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// forward declaration to reduce includes
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class
PseudoJet;
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//----------------------------------------------------------------------
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//
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/// @ingroup plugins
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/// \class CMSIterativeConePlugin
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/// Implementation of the CMS Iterative Cone (plugin for fastjet v2.4 upwards)
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class
CMSIterativeConePlugin
:
public
JetDefinition::Plugin
{
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public
:
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/// Main constructor for the CMSIterativeCone Plugin class.
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///
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/// The arguments are
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/// ConeRadius the radius of the cone
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/// SeedThreshold a threshold for the seeds to iterate from
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///
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/// NOTE: to be more coherent with all other fastjet plugins,
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/// we've put the radius before the seed threshold.
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/// CMS does the opposite.
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/// In this way, we also put a default value of 0 for the
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/// seed threshold.
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CMSIterativeConePlugin
(
double
ConeRadius,
double
SeedThreshold=1.0) :
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theConeRadius(ConeRadius), theSeedThreshold(SeedThreshold){}
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/// copy constructor
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CMSIterativeConePlugin
(
const
CMSIterativeConePlugin
& plugin) {
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*
this
= plugin;
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}
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// the things that are required by base class
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virtual
std::string description ()
const
;
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virtual
void
run_clustering(
ClusterSequence
&)
const
;
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/// the plugin mechanism's standard way of accessing the jet radius
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/// here we return the R of the last alg in the list
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virtual
double
R
()
const
{
return
theConeRadius;}
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/// get the seed threshold
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virtual
double
seed_threshold
()
const
{
return
theSeedThreshold;}
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private
:
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double
theConeRadius;
///< cone radius
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double
theSeedThreshold;
///< seed threshold
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static
bool
_first_time;
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/// print a banner for reference to the 3rd-party code
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void
_print_banner(std::ostream *ostr)
const
;
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};
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FASTJET_END_NAMESPACE
// defined in fastjet/internal/base.hh
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#endif // __CMSITERATIVECONEPLUGIN_HH__
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