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diff --git a/include/Rivet/Projections/SmearedJets.hh b/include/Rivet/Projections/SmearedJets.hh
--- a/include/Rivet/Projections/SmearedJets.hh
+++ b/include/Rivet/Projections/SmearedJets.hh
@@ -1,164 +1,155 @@
// -*- C++ -*-
#ifndef RIVET_SmearedJets_HH
#define RIVET_SmearedJets_HH
#include "Rivet/Jet.hh"
#include "Rivet/Particle.hh"
#include "Rivet/Projection.hh"
#include "Rivet/Projections/JetAlg.hh"
#include "Rivet/Tools/SmearingFunctions.hh"
#include <functional>
namespace Rivet {
/// Wrapper projection for smearing {@link Jet}s with detector resolutions and efficiencies
/// @todo Chain constructors?
class SmearedJets : public JetAlg {
public:
/// @name Constructors etc.
//@{
/// @brief Constructor with efficiency and smearing function args
/// The jet reconstruction efficiency is mandatory; the smearing and tagging functions are optional
template <typename J2JFN>
SmearedJets(const JetAlg& ja,
const J2JFN& jetSmearFn)
- : _jetEffFn(JET_EFF_ONE), _bTagEffFn(JET_BTAG_PERFECT), _cTagEffFn(JET_CTAG_PERFECT), _jetSmearFn(jetSmearFn)
- {
- setName("SmearedJets");
- addProjection(ja, "TruthJets");
- }
+ : SmearedJets(ja, jetSmearFn, JET_BTAG_PERFECT, JET_CTAG_PERFECT, JET_EFF_ONE)
+ { }
/// @brief Constructor with efficiency and smearing function args
/// The jet reconstruction efficiency is mandatory; the smearing and tagging functions are optional
template <typename J2JFN, typename J2DFN>
SmearedJets(const JetAlg& ja,
const J2JFN& jetSmearFn,
const J2DFN& bTagEffFn)
- : _jetEffFn(JET_EFF_ONE), _bTagEffFn(bTagEffFn), _cTagEffFn(JET_CTAG_PERFECT), _jetSmearFn(jetSmearFn)
- {
- setName("SmearedJets");
- addProjection(ja, "TruthJets");
- }
+ : SmearedJets(ja, jetSmearFn, bTagEffFn, JET_CTAG_PERFECT, JET_EFF_ONE)
+ { }
/// @brief Constructor with efficiency and smearing function args
/// The jet reconstruction efficiency is mandatory; the smearing and tagging functions are optional
template <typename J2JFN, typename J2DFNa, typename J2DFNb>
SmearedJets(const JetAlg& ja,
const J2JFN& jetSmearFn,
const J2DFNa& bTagEffFn,
const J2DFNb& cTagEffFn)
- : _jetEffFn(JET_EFF_ONE), _bTagEffFn(bTagEffFn), _cTagEffFn(cTagEffFn), _jetSmearFn(jetSmearFn)
- {
- setName("SmearedJets");
- addProjection(ja, "TruthJets");
- }
+ : SmearedJets(ja, jetSmearFn, bTagEffFn, cTagEffFn, JET_EFF_ONE)
+ { }
/// @brief Constructor with efficiency and smearing function args
/// The jet reconstruction efficiency is mandatory; the smearing and tagging functions are optional
template <typename J2JFN, typename J2DFNa, typename J2DFNb, typename J2DFNc>
SmearedJets(const JetAlg& ja,
const J2JFN& jetSmearFn,
const J2DFNa& bTagEffFn,
const J2DFNb& cTagEffFn,
const J2DFNc& jetEffFn)
: _jetEffFn(jetEffFn), _bTagEffFn(bTagEffFn), _cTagEffFn(cTagEffFn), _jetSmearFn(jetSmearFn)
{
setName("SmearedJets");
addProjection(ja, "TruthJets");
}
/// Clone on the heap.
virtual const Projection* clone() const {
return new SmearedJets(*this);
}
//@}
/// Compare to another SmearedJets
int compare(const Projection& p) const {
const SmearedJets& other = dynamic_cast<const SmearedJets&>(p);
if (_mkhash(_jetEffFn) == 0) return UNDEFINED;
if (_mkhash(_bTagEffFn) == 0) return UNDEFINED;
if (_mkhash(_cTagEffFn) == 0) return UNDEFINED;
if (_mkhash(_jetSmearFn) == 0) return UNDEFINED;
return
cmp(_mkhash(_jetEffFn), _mkhash(other._jetEffFn)) || cmp(_mkhash(_jetSmearFn), _mkhash(other._jetSmearFn)) ||
cmp(_mkhash(_bTagEffFn), _mkhash(other._bTagEffFn)) || cmp(_mkhash(_cTagEffFn), _mkhash(other._cTagEffFn));
}
/// Perform the jet finding & smearing calculation
void project(const Event& e) {
// Copying and filtering
const Jets& truthjets = applyProjection<JetAlg>(e, "TruthJets").jetsByPt();
_recojets.clear(); _recojets.reserve(truthjets.size());
foreach (const Jet& j, truthjets) {
const double jeff = (_jetEffFn) ? _jetEffFn(j) : 1;
MSG_DEBUG("Efficiency of jet " << j.mom() << " = " << 100*jeff << "%");
if (jeff == 0) continue; //< no need to roll expensive dice
if (jeff == 1 || jeff < rand01()) {
_recojets.push_back(_jetSmearFn ? _jetSmearFn(j) : j); //< smearing
}
}
// Tagging efficiencies
foreach (Jet& j, _recojets) {
const double beff = (_bTagEffFn) ? _bTagEffFn(j) : 1;
const bool btag = beff == 1 || (beff != 0 && beff < rand01());
// Remove b-tags if needed, and add a dummy one if needed
if (!btag && j.bTagged()) j.tags().erase(std::remove_if(j.tags().begin(), j.tags().end(), hasBottom), j.tags().end());
if (btag && !j.bTagged()) j.tags().push_back(Particle(PID::BQUARK, j.mom()));
const double ceff = (_cTagEffFn) ? _cTagEffFn(j) : 1;
const bool ctag = ceff == 1 || (ceff != 0 && ceff < rand01());
// Remove c-tags if needed, and add a dummy one if needed
if (!ctag && j.cTagged()) j.tags().erase(std::remove_if(j.tags().begin(), j.tags().end(), hasCharm), j.tags().end());
if (ctag && !j.cTagged()) j.tags().push_back(Particle(PID::CQUARK, j.mom()));
}
}
/// Return the full jet list for the JetAlg methods to use
Jets _jets() const { return _recojets; }
/// Reset the projection. Smearing functions will be unchanged.
void reset() { _recojets.clear(); }
private:
/// Make a hash integer from the provided wrapped Jet -> double function
size_t _mkhash(const std::function<double(const Jet&)>& fn) const {
const size_t rtn = reinterpret_cast<size_t>(fn.target<double(*)(const Jet&)>());
MSG_TRACE("J2D hash = " << rtn);
return rtn;
}
/// Make a hash integer from the provided wrapped Jet -> Jet function
size_t _mkhash(const std::function<Jet(const Jet&)>& fn) const {
const size_t rtn = reinterpret_cast<size_t>(fn.target<Jet(*)(const Jet&)>());
MSG_TRACE("J2J hash = " << rtn);
return rtn;
}
Jets _recojets;
/// Stored efficiency functions
std::function<double(const Jet&)> _jetEffFn, _bTagEffFn, _cTagEffFn;
/// Stored smearing function
std::function<Jet(const Jet&)> _jetSmearFn;
};
}
#endif

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