fenics team mailing list archive

[Harish Narayanan <harish.mlists@xxxxxxxxx>]

On 18/12/2009 13:53, Marie Rognes wrote:
> Harish Narayanan wrote:
>> Dear fellow PDE solvers,
>>
>> The sort of question I am about the phrase might seem strange to some,
>> but perhaps it will seem natural to others.
>>
>> Last evening, I was curious about meshing quirky geometries like the
>> Möbius strip in DOLFIN. This morning, I was curious about solving a PDE
>> on such a domain, and so I came up with the attached python script.
>>
>> The script purportedly sets up a Poisson equation (with homogeneous
>> boundary conditions and a constant source) on a Möbius strip (with four
>> twists) and "solves it." I see a pretty looking plot with some
>> psychedelic colours, but can someone who knows more about this stuff be
>> kind enough to clarify what I've ended up doing?
>>
>>   
> 
> I haven't got the foggiest, but I'd like to know more as well!
> 
> So is this a mesh of triangles with 3D coordinates? (I didn't even know
> that we could do that ;) )

This was my first surprise! I was grepping through some code and saw
some tdim, gdim variables and then stumbled across ("triangle", 2, 2)
somewhere.

I did the obvious, changed one of the 2s to a 3.

Harish