Boost logo

Boost Users :

Subject: Re: [Boost-users] BGL Properties
From: Jeremiah Willcock (jewillco_at_[hidden])
Date: 2011-01-27 13:47:38


On Thu, 27 Jan 2011, David Doria wrote:

> I have two questions:
>
> 1) I am trying to iterate through the edges of a graph and output
> their edge weights. I am confused though. I know how to output the
> "edges", but they are actually just a (vertex, vertex) pair which
> defines the edge. So do I index *edgePair.first into the EdgeWeightMap
> to get the weight of the edge starting from vertex *edgePair.first? Or
> how else would I get the weight associated with a particular edge?
>
> Code snippet:
> http://stackoverflow.com/questions/4810589/output-bgl-edge-weights
>
> 2) I have created a struct, and used it as a template parameter to
> adjacency_list. However, when I try to add_edge(vertex1, vertex2,
> property, graph) , the compiler complains "no matching function call".
> Can anyone see where I've gone wrong?
>
> Code snippet:
> http://stackoverflow.com/questions/4810235/bgl-bundled-properties-add-edge-no-matching-function
>
> Any suggestions on either of these?

I just answered both on StackOverflow; the issue is, as the later posts
say, using an edge property in the VertexProperty slot of the
adjacency_list template parameter list.

-- Jeremiah Willcock


Boost-users list run by williamkempf at hotmail.com, kalb at libertysoft.com, bjorn.karlsson at readsoft.com, gregod at cs.rpi.edu, wekempf at cox.net