Trk::AlSpaMat Node1 Trk::AlSpaMat # m_pathbin # m_pathtxt # m_ptr_row # m_ptr_col + AlSpaMat() + AlSpaMat() + AlSpaMat() + AlSpaMat() + ~AlSpaMat() + operator=() + operator=() + operator=() + operator=() + operator+() and 30 more... # copy() # copy() # copy() # elem() 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