dolfin team mailing list archive

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

Anders Logg wrote:
> I'm not sure this will work. If you attach 6 vertices to a triangle by
>
>   <triangle index="0" affine="false" v0="0" v1="1" v2="2" v3="4" v4="5" v5="6"/>
>
> then all sorts of things will break (I imagine). A triangle always has
> three vertices.

I noticed this too. It would make some things troublesome.

> The geometry of the triangles is separate.
>
> Maybe we could just add extra data which could be "control points" for
> the cell facets? For P2 it would be the edge/face midpoints.

I like the idea of defining facet data which would contain the necessary 
info.

Garth


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