TRTPhysicsTool Node1 TRTPhysicsTool + TRTPhysicsTool() + ~TRTPhysicsTool() + initialize() + ConstructParticle() + ConstructProcess() + GetPhysicsOption() Node2 G4VPhysicsConstructor Node2->Node1 Node3 extends< AthAlgTool, IPhysicsOptionTool > Node3->Node1 Node4 std::string Node4->Node1 #m_xmlFile Node5 std::basic_string< char > Node5->Node4