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Subject: Re: [Boost-users] [BGL] Trying to use subgraph
From: Lindley M French (lfrench1_at_[hidden])
Date: 2009-05-23 10:26:27

More options are always welcome, so long as they're easy to specify.

Incidentally, I believe there was a problem with placing edge_index_t edge_index in the bundled properties----it only worked when I used the (far uglier) joint internal/bundled property approach. Something else to put on the list.

> The intention with regards to properties was never all that clear to me
> from the documentation, to be honest.
> I *thought* that each subgraph would have a local copy of all properties
> (as they were at subgraph creation time) and the modifying these would not
> change the properties of the corresponding global vertex/edge, and my code
> actually relies on this.
> Am I going to have to change my code design, either to accommodate the
> current design or a future fix?

Me neither. This is really my first time digging into subgraph. It makes
sense (to me) that each vertex/edge should have only one property, but I can
see reasons for localizing properties as well. If both are needed, I can
create specializations of property_map that select local/global lookup
strategies. Would that be acceptable?

Andrew Sutton

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