Trk::AlSymMat Node1 Trk::AlSymMat # m_ptr_data # m_pathbin # m_pathtxt + AlSymMat() + AlSymMat() + AlSymMat() + AlSymMat() + operator=() + ~AlSymMat() + operator=() + operator=() + operator=() + operator+() and 28 more... # elem() # copy() # copy() # copy() Node2 Trk::AlSymMatBase # m_matrix_type # m_ptr_map # m_size # m_nele + ~AlSymMatBase() + operator[]() + operator[]() + nrow() + ncol() + size() + matrix_type() + reSize() + elemr() + elemc() and 14 more... # AlSymMatBase() # AlSymMatBase() # AlSymMatBase() # operator=() Node2->Node1