Embedded elements showcase: Gray-Scott model on a sphere

[termi-official]

This needs quite a bit of polishing, but it is at least a functional example.

TODO

• Parameter passing for diffusivity
• Documentation
• Faster solver
• Cleaner assembly code
• Update FerriteGmsh to allow parsing of embedded meshes Use FerriteGmsh to generate the mesh on the fly

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.69%. Comparing base (cf97ee5) to head (5ab82f2).
Report is 4 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #715   +/-   ##
=======================================
  Coverage   93.69%   93.69%           
=======================================
  Files          36       36           
  Lines        5438     5438           
=======================================
  Hits         5095     5095           
  Misses        343      343           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[termi-official]

Little hack to get the mesh

try
  togrid("sphere.msh")
catch
end
nodes = tonodes();
elements, gmsh_elementidx = toelements(2);

[termi-official]

If we want to include this in the next release, then this is as good as it might get, because we need the next release first to make the FerriteGmsh update (due to the breaking changes).

[termi-official]

Ready again @fredrikekre

[fredrikekre]

Very nice. Since the main reason for this tutorial to exist is to show embedding I think it could be highlighted a bit more. However, since Ferrite is now pretty general there is really nothing extra you need to do to make embedding work :D Perhaps just add a remark somewhere that highlights that we use 2D elements embedded in 3D space?

[termi-official]

Very nice. Since the main reason for this tutorial to exist is to show embedding I think it could be highlighted a bit more. However, since Ferrite is now pretty general there is really nothing extra you need to do to make embedding work :D

I also struggled a bit with this one. Maybe I should add a note to the devdocs for users who might be interested in the internals?

Perhaps just add a remark somewhere that highlights that we use 2D elements embedded in 3D space?

Will do.