On Sun, 7 Feb 2010 15:22:54 -0800 (PST), Nils Bruin <nbr...@sfu.ca> wrote:
> A very nice picture, but it made me notice something about the default
> graph lay-out:
> There are cases where a vertex lies almost perfectly on an edge. This
> makes it look like the edge is incident with the vertex. If there
> would be a small white "shadow" around the vertex, it would be clear
> that the edge passes "under" the vertex.
> If someone feels an urgent need to improve graph plotting, this might
> be a thing that could use some attention. A rough start could be:
>  * plot the edges
>  * plot the vertices on top of a slightly larger white "shadow"
>  * fill in the heads and tails of the edges to make sure they actually
> connect to the vertices.
> 
> Of course, avoiding crossings like this as much as possible is a much
> more difficult and interesting problem to solve (curve edges to avoid
> edges they aren't incident with?)

  ^^^^^  should be vertices.

This sounds like a good idea though.


Alex

-- 
Alex Ghitza -- Lecturer in Mathematics -- The University of Melbourne
-- Australia -- http://www.ms.unimelb.edu.au/~aghitza/

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