FastJet 3.0.2
ClusterSequenceArea.cc
00001 #include "fastjet/ClusterSequenceArea.hh"
00002 
00003 FASTJET_BEGIN_NAMESPACE
00004 
00005 LimitedWarning ClusterSequenceArea::_range_warnings;
00006 LimitedWarning ClusterSequenceArea::_explicit_ghosts_repeats_warnings;
00007 
00008 /// print a warning if the range is unsuitable for the current
00009 /// calculation of the area (e.g. because ghosts do not extend
00010 /// far enough).
00011 void ClusterSequenceArea::_warn_if_range_unsuitable(const Selector & selector) const {
00012   _check_selector_good_for_median(selector);
00013 
00014   bool no_ghosts = (_area_def.area_type() == voronoi_area)
00015     || (_area_def.area_type() == passive_area
00016         && jet_def().jet_algorithm() == kt_algorithm);
00017   if (! no_ghosts) {
00018     double rapmin, rapmax;
00019     selector.get_rapidity_extent(rapmin, rapmax);
00020     if (rapmin < -_area_def.ghost_spec().ghost_maxrap()+0.95*jet_def().R() ||
00021         rapmax >  _area_def.ghost_spec().ghost_maxrap()-0.95*jet_def().R()) {
00022       _range_warnings.warn("rapidity range for median (rho) extends beyond +-(ghost_maxrap - 0.95*R); this is likely to cause the results to be unreliable; safest option is to increase ghost_maxrap in the area definition");
00023     }
00024   }
00025 }
00026 
00027 
00028 FASTJET_END_NAMESPACE
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