dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

dbeacham wrote:
> Question #95085 on DOLFIN changed:
> https://answers.launchpad.net/dolfin/+question/95085
> 
>     Status: Answered => Solved
> 
> dbeacham confirmed that the question is solved:
> Thanks for this - I hadn't appreciated the need to call mesh.init.
> 
> One quick clarification:
> 
> Say that a vertex, v, has v.entities(1) = [300 400 500] (ie is adjacent
> to edges 300, 400 and 500), then in order to find the information on any
> of those edges, I'd have to cycle through the edge iterator until I
> found the edge, e, such that e.index() = 300, 400 or 500?
> 

If you know the index, you can create the edge

  Edge edge(const Mesh& mesh, uint index);

Garth