TruthView Node1 TruthView - m_z0 - m_d0 - m_phi + TruthView() + TruthView() + TruthView() + TruthView() + ~TruthView() + hasDecorations() + z0() + d0() + phi() + add_z0() + add_d0() + add_phi() Node2 TrackView - m_ptr + TrackView() + TrackView() + TrackView() + TrackView() + TrackView() + ~TrackView() + ptr() + pt() + eta() + theta() and 47 more... # vtable() - deref() - pt_impl() - eta_impl() - theta_impl() - phi_impl() - z0_impl() - d0_impl() - m_impl() - qOverP_impl() - p_impl() and 32 more... Node2->Node1 Node3 TrackView::VTable + pt + eta + theta + phi + z0 + d0 + m + qOverP + p + E and 32 more...   Node3->Node2 -m_vtable -table