ViewCreatorCentredOnClusterROITool Node1 ViewCreatorCentredOnCluster ROITool + m_roisWriteHandleKey + m_clusterLinkName + m_allowMultipleClusters + m_roiEtaWidth + m_roiPhiWidth + m_roiZedWidth + ViewCreatorCentredOnCluster ROITool() + ~ViewCreatorCentredOnCluster ROITool() + initialize() + attachROILinks() Node2 extends< AthAlgTool, IViewCreatorROITool > Node2->Node1