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Since nearly every algorithm requires a vertex index map in one way or another, these may as well be concepts. Also, its a convenient documentary artifact that lets you write, "If your graph is not a *IndexMap, then you must provide an index map as an exterior property."

Ah, interesting. That is helpful.

It's part of a plan for generalized graph semantics framework, so we can discuss EdgeWeightedGraphs, NamedVertexGraphs, etc. Or, more specifically what to do when graphs don't model those concepts.

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Documentation for these features is forthcoming. Its part of my project to (finally) migrate the BGL docs over to quickbook. There are tests for most of these features - some are in progress - others are woefully inadequate and under development. Since I'm generally pretty busy, these will probably materialize slowly. I'm aiming at 1.40.

Quickbook documentation for BGL would be *wonderful*. Perhaps someone from the Boost Documentation project would like to help out (?).

They already have... somebody wrote an HTML to quickbook program :) I just have to dig out a reference to it. Plus, I have some of the quickbook framework built into the SOC project from 2007. Now if only I can get the toolchain to buil the docs correctly. Andrew Sutton andrew.n.sutton@gmail.com