ActsTrk::BeamPipeBlueprintNodeBuilder Node1 ActsTrk::BeamPipeBlueprint NodeBuilder - m_loadfromDatabase - m_defaultInnerRadius + initialize() + buildBlueprintNode() Node2 extends< AthAlgTool, IBlueprintNodeBuilder >     Node2->Node1 Node3 BeamPipeDetectorManager   + BeamPipeDetectorManager() + ~BeamPipeDetectorManager() + getNumTreeTops() + getTreeTop() + addTreeTop() - operator=() - BeamPipeDetectorManager() Node3->Node1 -m_beamPipeMgr Node4 GeoVDetectorManager     Node4->Node3 Node5 std::vector< PVConstLink > + elements   Node5->Node3 -m_volume