On 5 Dec 2014 17:33, "Eike Mueller" <e.mueller@bath.ac.uk> wrote:

Thanks, at some point we have to think about orography, but I think then we can just use the coordinates of the extruded mesh instead of the host mesh.

Cheers, Eike

Sent from my iPod

> On 5 Dec 2014, at 17:28, Lawrence Mitchell <lawrence.mitchell@imperial.ac.uk> wrote:
>
>
>
>> On 5 Dec 2014, at 17:14, Eike Mueller <e.mueller@bath.ac.uk> wrote:
>>
>> thanks, I guess I could also just use the code that Lawrence commented out below… I figured out what the C code does, and that’s what I’m doing now. In a radially extruded mesh, are the normals in one column always the same? I think this is what the code assumes, since it only uses the coordinates in the base cell.
>
> Yes, the normal to the horizontal facet is always in the same direction, at least with no orography, since the horizontal facets in a column are parallel with radial extrusion
>
> Lawrence
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