[Boost-users] BGL - Multiple graphs on the same data-structure.

Hi, My application needs to have multiple graphs overlayed on the same set of data. Looks like used bundled properties would be very attractive. Since the data-set is likely to be large and the graphs will have to coexist, I'd like to build graphs of pointers to the base data. However, I am having trouble figuring out how to store pointers to the data structures within an adjacency_list. Any suggestions/pointers to examples would be much appreciated. -sr