MaterialDescriptionTool Node1 MaterialDescriptionTool - m_isTestBeam + MaterialDescriptionTool() + ~MaterialDescriptionTool() + preGeometryConfigure() + postGeometryConfigure() Node2 GeometryConfigurationToolBase + GeometryConfigurationToolBase() + ~GeometryConfigurationToolBase() + initialize() + preGeometryConfigure() + postGeometryConfigure() Node2->Node1 Node3 extends< AthAlgTool, IG4GeometryConfigurationTool > Node3->Node2