Trk::GeantFollowerHelper Node1 Trk::GeantFollowerHelper + MAXPROBES - m_extrapolator - m_extrapolateDirectly - m_extrapolateIncrementally - m_parameterCache - m_tX0Cache - m_validationTreeName - m_validationTreeDescription - m_validationTreeFolder - m_validationTree - m_treeData + GeantFollowerHelper() + ~GeantFollowerHelper() + initialize() + finalize() + beginEvent() + trackParticle() + endEvent() Node2 extends< AthAlgTool, IGeantFollowerHelper > Node2->Node1