#include <ClusterSequenceVoronoiArea.hh>
Inheritance diagram for fastjet::ClusterSequenceVoronoiArea:
Public Member Functions | |
| template<class L> | |
| ClusterSequenceVoronoiArea (const std::vector< L > &pseudojets, const JetDefinition &jet_def, const VoronoiAreaSpec &spec=VoronoiAreaSpec(), const bool &writeout_combinations=false) | |
| template constructor need to be specified in the header! | |
| ~ClusterSequenceVoronoiArea () | |
| default dtor | |
| virtual double | area (const PseudoJet &jet) const |
| return the area associated with the given jet | |
| virtual PseudoJet | area_4vector (const PseudoJet &jet) const |
| return a 4-vector area associated with the given jet -- stricly this is not the exact 4-vector area, but rather an approximation made of sums of centres of all Voronoi cells in jet, each contributing with a normalisation equal to the area of the cell | |
| virtual double | area_error (const PseudoJet &jet) const |
| return the error of the area associated with the given jet (0 by definition for a voronoi area) | |
Private Member Functions | |
| void | _initializeVA () |
Private Attributes | |
| std::vector< double > | _voronoi_area |
| vector containing the result | |
| std::vector< PseudoJet > | _voronoi_area_4vector |
| vector containing approx 4-vect areas | |
| VoronoiAreaCalc * | _pa_calc |
| area calculator | |
| double | _effective_Rfact |
| effective radius | |
Classes | |
| class | VoronoiAreaCalc |
| class for carrying out a voronoi area calculation on a set of initial vectors More... | |
Definition at line 46 of file ClusterSequenceVoronoiArea.hh.
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template constructor need to be specified in the header!
Definition at line 99 of file ClusterSequenceVoronoiArea.hh. 00102 : 00103 _effective_Rfact(spec.effective_Rfact()) { 00104 00105 // transfer the initial jets (type L) into our own array 00106 _transfer_input_jets(pseudojets); 00107 00108 // run the clustering 00109 _initialise_and_run(jet_def,writeout_combinations); 00110 00111 // the jet clustering's already been done, now worry about areas... 00112 _initializeVA(); 00113 }
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default dtor
Definition at line 311 of file ClusterSequenceVoronoiArea.cc. References _pa_calc. 00311 {
00312 delete _pa_calc;
00313 }
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Definition at line 269 of file ClusterSequenceVoronoiArea.cc. References _effective_Rfact, fastjet::ClusterSequence::_history, fastjet::ClusterSequence::_jet_def, fastjet::ClusterSequence::_jets, _pa_calc, _voronoi_area, _voronoi_area_4vector, area(), fastjet::ClusterSequenceVoronoiArea::VoronoiAreaCalc::area(), fastjet::ClusterSequence::n_particles(), and fastjet::JetDefinition::R(). 00269 {
00270 // run the VAC on our original particles
00271 _pa_calc = new VAC(_jets.begin(),
00272 _jets.begin()+n_particles(),
00273 _effective_Rfact*_jet_def.R());
00274
00275 // transfer the areas to our local structure
00276 // -- first the initial ones
00277 _voronoi_area.reserve(2*n_particles());
00278 for (unsigned int i=0; i<n_particles(); i++) {
00279 _voronoi_area.push_back(_pa_calc->area(i));
00280 // make a stab at a 4-vector area
00281 if (_jets[i].perp2() > 0) {
00282 _voronoi_area_4vector.push_back((_pa_calc->area(i)/_jets[i].perp())
00283 * _jets[i]);
00284 } else {
00285 // not sure what to do here -- just put zero (it won't be meaningful
00286 // anyway)
00287 _voronoi_area_4vector.push_back(PseudoJet(0.0,0.0,0.0,0.0));
00288 }
00289 }
00290
00291 // -- then the combined areas that arise from the clustering
00292 for (unsigned int i = n_particles(); i < _history.size(); i++) {
00293 double area;
00294 PseudoJet area_4vect;
00295 if (_history[i].parent2 >= 0) {
00296 area = _voronoi_area[_history[i].parent1] +
00297 _voronoi_area[_history[i].parent2];
00298 area_4vect = _voronoi_area_4vector[_history[i].parent1] +
00299 _voronoi_area_4vector[_history[i].parent2];
00300 } else {
00301 area = _voronoi_area[_history[i].parent1];
00302 area_4vect = _voronoi_area_4vector[_history[i].parent1];
00303 }
00304 _voronoi_area.push_back(area);
00305 _voronoi_area_4vector.push_back(area_4vect);
00306 }
00307
00308 }
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return the area associated with the given jet
Reimplemented from fastjet::ClusterSequenceAreaBase. Definition at line 63 of file ClusterSequenceVoronoiArea.hh. References fastjet::PseudoJet::cluster_hist_index(). Referenced by fastjet::ClusterSequencePassiveArea::_initialise_and_run_PA(), and _initializeVA(). 00063 {
00064 return _voronoi_area[jet.cluster_hist_index()];};
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return a 4-vector area associated with the given jet -- stricly this is not the exact 4-vector area, but rather an approximation made of sums of centres of all Voronoi cells in jet, each contributing with a normalisation equal to the area of the cell
Reimplemented from fastjet::ClusterSequenceAreaBase. Definition at line 70 of file ClusterSequenceVoronoiArea.hh. References fastjet::PseudoJet::cluster_hist_index(). Referenced by fastjet::ClusterSequencePassiveArea::_initialise_and_run_PA(). 00070 {
00071 return _voronoi_area_4vector[jet.cluster_hist_index()];};
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return the error of the area associated with the given jet (0 by definition for a voronoi area)
Reimplemented from fastjet::ClusterSequenceAreaBase. Definition at line 75 of file ClusterSequenceVoronoiArea.hh. 00075 {
00076 return 0.0;};
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effective radius
Definition at line 90 of file ClusterSequenceVoronoiArea.hh. Referenced by _initializeVA(). |
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area calculator
Definition at line 89 of file ClusterSequenceVoronoiArea.hh. Referenced by _initializeVA(), and ~ClusterSequenceVoronoiArea(). |
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vector containing the result
Definition at line 87 of file ClusterSequenceVoronoiArea.hh. Referenced by _initializeVA(). |
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vector containing approx 4-vect areas
Definition at line 88 of file ClusterSequenceVoronoiArea.hh. Referenced by _initializeVA(). |
1.4.2