Hi all,

is there a way to project a function defined on a fine mesh onto a functionspace with a coarse mesh? Look at the following exemplary setup:

from firedrake import *

import numpy as np

mesh_fine = UnitSquareMesh(20,20)

mesh_coarse = UnitSquareMesh(10,10)

fs_fine = FunctionSpace(mesh_fine, 'CG', 1)

fs_coarse = FunctionSpace(mesh_coarse, 'CG', 1)

fun_fine = Function(fs_fine)

fun_fine.dat.data[:] = np.random.normal(0, 1, len(fun_fine.dat.data))

fun_coarse = ?

In this case, perhaps one could inherit overlapping nodes from fine to coarse mesh?

All the best,
Tobias