[vtkusers] writing XML vtk file for Unstructured Grid (C++)

[fred]

Hi,

Can someone give me some url where I could find out how I can write XML
VTK file for an Structured Grid
from a 3D array in C++ ?

PS : I already posted a similar issue in C (for us-grid) but I also need
to write it in C++ (for s-grid) too.

Thanks in advance.

-- 
F.