
Boost : 
Subject: Re: [boost] [graph]
From: Doug Gregor (doug.gregor_at_[hidden])
Date: 20090209 10:02:20
On Sun, Feb 8, 2009 at 9:03 AM, Andrew Sutton <andrew.n.sutton_at_[hidden]> wrote:
> Update on the BGL. I've just ported my SOC work en masse from 2007 to the
> BGL trunk. New features include:
>
> * [un]directed_graph classes  wrappers around adjacency lists. These serve
> as introductory classes to help with prototyping. They also try to hide all
> of the problems with vertex indices and property maps  as in every
> algorithm requires vertex maps, but only VerteSet == vecS provides them.
> * degree_centraility  algorithms for computing the degree centrality of
> vertices in a graph. Includes measures of influence and prestige.
> * closeness_centraltiy  algoritghms for computing the closeness centraility
> (based on SSPs) for vertices in a graph.
> * geodesic_distance  Computes the smallworld and mean geodesic distances
> of graphs.
> * eccentricity  Algorithms for computing eccentricity, and the radius and
> diameter of the graph.
> * clustering_coefficient  Returns the clustering coefficient of a vertex or
> the average CC for the entire graph.
> * core_numbers  Partitioning of a graph into cores based on vertex degree
> (from David Gleich)
> * all_cycles  Find and visit all cycles in a graph (Tiernan)
> * all_cliques  Find and visit all cliques in a graph (Bron & Kerbosch)
> * exterior_properties  A new framework for helping define exterior
> properties (and property maps) for graphs.
This is great!
> New graph concepts:
> * VertexIndexGraph  any graph for which get(vertex_index, g) is valid
> * EdgeIndexGraph  any graph for which get(edge_index, g) is valid
>
> 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.
> 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 (?).
 Doug
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