Mapping external data to FESpace

[fihu55]

Hello together,

currently I am solving a simple Poisson equation using a function for x- and y-components, e.g.

f(x) = VectorValue(
    cos(2 * π * x[1]),                  # x-function
    cos(2 * π * x[1] + 2 * π * x[2])    # y-function
)

which works great. But my goal is also to investigate external functions, i.e. field distributions, that I have already calculated in an external FE software. I was wondering if there is a way to map these external solutions to my FE space? In the tutorial there were only examples for the interpolation of functions as above to different FE spaces, or did I miss something?

[fihu55]

solved issue by creating an interpolant using ScatteredInterpolation