LArFCalTowerStore Node1 LArFCalTowerStore - m_indxOffset - m_indxBound + LArFCalTowerStore() + ~LArFCalTowerStore() + towers() + towers() + firstCellofTower() + lastCellofTower() + towerSize() + buildLookUp() + size() Node2 std::vector< tower _data_t > Node2->Node1 -m_TTCmatrix Node3 std::vector< T > Node3->Node2 +elements Node4 T Node4->Node3 +elements Node5 std::vector< unsigned int > + elements Node5->Node1 -m_ndyFCal -m_ndxFCal