Trk::INeutralParticleParameterCalculator Node1 Trk::INeutralParticleParameter Calculator + createNeutralTrackFromVertex() + interfaceID() Node3 Trk::NeutralParticleParameter Calculator - theta - phi - m_LinearizedTrackFactory - m_linearizedTrackFactory IsAvailable + initialize() + NeutralParticleParameter Calculator() + ~NeutralParticleParameter Calculator() + createNeutralTrackFromVertex() - getPosMomentumAndMomentum CovMatrix() - AmgMatrix() Node1->Node3 Node2 IAlgTool Node2->Node1