Daniel VandenHeuvel

Thanks for your comments. Here are some functions that are useful for this. I might be using some internals of DelaunayTriangulation here, I'd have to double check. If I am,...

Might be something wrong in my code above, not really sure. I tried using it for https://ferrite-fem.github.io/Ferrite.jl/dev/tutorials/heat_equation/, using triangles instead of quadrilaterals but I get some singular matrix: ```julia using...

`sort_triangle` preserves the order of the triangle (counter-clockwise), it just rotates it to put the minimum vertex first. I think the orientation is consistent throughout but I'll check. ```julia for...

Nevermind. It's because I fixed an issue in my post above but somehow didn't do the same in my actual script 🤦 .

Here's a complete example. It's https://ferrite-fem.github.io/Ferrite.jl/dev/tutorials/heat_equation/ except on an annulus. The boundary conditions are zero on the inner boundary, and $x^2y^2$ on the outer boundary. I use `tricontourf` to plot...

Thanks for the tip with `evaluate_at_grid_nodes`! I figured there was an easier way but that was the best I could find in the docs. I'll write up the example properly...

See https://github.com/Ferrite-FEM/Ferrite.jl/pull/1040

Could this just be an extension without needing another package? Maybe the extension itself would have more dependencies to work with the ContinuumArrays stuff anyway that it'd be annoying to...

Interesting... thanks for the report. I'll look into it on the weekend.

In the meantime can you also send an image of the (1) triangulation and (2) the unclipped tessellation? Just to get a sense of thes two objects.