ActsTrk::ICellClusteringToolBase< T_RDO_Container, T_OutputContainer, NDIM, coordinate_t > Node1 ActsTrk::ICellClustering ToolBase< T_RDO_Container, T_OutputContainer, NDIM, coordinate_t >   + countCells() + clusterize() + createEventDataCache() + makeClusters() Node2 IAlgTool     Node2->Node1