ActsTrk::PixelClusteringTool::Cluster Node1 ActsTrk::PixelClustering Tool::Cluster + lvl1min Node2 std::vector< Identifier > Node2->Node1 +ids Node3 Identifier - m_id + Identifier() + Identifier() + Identifier() + operator=() + operator=() + ~Identifier() + Identifier() + Identifier() + Identifier() + Identifier() and 38 more... - operator|=() - operator&=() - extract() - mask_shift() - extract() Node3->Node2 +elements Node4 std::vector< int > + elements Node4->Node1 +tots