Mesh copy

[DSTxj]

How to perform grid duplication in Firedrake? I found that when using "mesh2 = mesh" directly, it merely causes the same mesh to have two identical names.

[connorjward]

You can create a new mesh by running

new_mesh = Mesh(old_mesh.coordinates)

See https://www.firedrakeproject.org/mesh-coordinates.html#changing-the-coordinate-function-space.

I admit this is a bit funny.

[DSTxj]

Thank you very much. I may find the method on the webpage. Thank you.
https://www.firedrakeproject.org/mesh-coordinates.html#changing-the-coordinate-function-space.

I want to save the information of a moved grid and create a grid that is exactly the same as it.

[connorjward]

Ah great.

[DSTxj]

"g = Function(f) # creates a copy of f, new_mesh = Mesh(g)"
Do you mean that by executing these two commands, a completely new grid identical to the original one will be created?

[connorjward]

Yes. Though note that a lot of bits of it are shared. In particular the coordinate field will differ - so you can move one and not the other - but the topology is shared.

[DSTxj]

OK. Thank you very much.