Reading data from a raw VTK (.vtu) file

Question

I want to extract data arrays from a .vtu file using the Python VTK module. The file looks like this (the raw data at the end of the file is ommitted):

Answer 1

A more lightweight solution would be to use meshio (which I authored). It has no required dependencies except numpy. Install with

pip install meshio

and read the file with

import meshio

mesh = meshio.read("foo.vtu")
# mesh.points, mesh.cells, mesh.point_data, ...