JetSubStructureUtils::KtSplittingScale Node1 JetSubStructureUtils ::KtSplittingScale - m_nSubJets + KtSplittingScale() + result() + result() Node2 JetSubStructureUtils ::SubstructureCalculator < double > + result() Node2->Node1 Node3 fastjet::FunctionOfPseudo Jet< double > Node3->Node2