Saving numpy meshgrid to vtk file

I am looking through vtkplotter examples to find an example on how to write a numpy array as a structured grid to a VTK file. But unfortunately, I couldn’t find it.

• Is it possible to write a vtk file from a numpy array? Here is an example:

import numpy as np

X, Y = np.meshgrid(np.linspace(0, 2, 10), np.linspace(0, 1, 5))
x = X.ravel()
y = Y.ravel()
z = np.zeros_like(x)

# Is it possible to use vtkplotter to save these arrays (x,  y, z) as  a vtk file assuming a structured topology?

The expected result is a vtk file as shown here:

[ghost]

Thank you very much 🥇 🥇 🥇

[marcomusy]

I’ve integrated this functionality in shapes.Grid, so from the next release on you can do things like:

from vtkplotter import *

xcoords = arange(0, 2, 0.2)
ycoords = arange(0, 1,  0.2)
sqrtx = sqrt(xcoords)

grid = Grid(sx=sqrtx, sy=ycoords)
grid.show(axes=8, bg='w')