Using mapping as manifold

[Praveen C]

Dear all

I want to transform a cartesian grid with my own transformation which is defined by a formula.

I have done this and created a MappingFEField as in this example

https://bitbucket.org/cpraveen/deal_ii/src/master/mapping_fe_field/

Saving to vtu format I can see it is working.

https://bitbucket.org/cpraveen/deal_ii/src/master/mapping_fe_field/grid.png

But is it possible to use this mapping as a manifold that I can attach to the triangulation ?

If not what other methods are there to tell the triangulation about the transformation ?

Should I try to combine MappingManifold and MappingFEField ?

Thanks
praveen

[Wolfgang Bangerth]

On 10/10/21 1:06 AM, Praveen C wrote:
> Should I try to combine MappingManifold and MappingFEField ?

Have you tried to use MappingManifold? It is, in essence, the same as using first
VectorTools::interpolate
to convert your mapping function into a finite element function, and then
using MappingFEField to use that finite element function to map a
triangulation. I think it does what you describe you want, though I don't
quite understand why you think you would need to combine the two.

Best
W.

--
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Wolfgang Bangerth email: bang...@colostate.edu
www: http://www.math.colostate.edu/~bangerth/