Hey Massimiliano,
Since unstructured grids are so unstructured, you could combine both geometries
together as part of the same unstructured grid, but then it's not as easy to
manipulate them or color them separately later.
What you might want to do is to Group your two unstructured grids into a
multi-block data set and save it as a .vtm file. Then, at any point where you
want to deal with one of the grids separately from the other, you can use
Extract Block to pull them apart.
If you already have your two .vtu files and all you're concerned about is being
able to load them simultaneously, then you could also refer to them both within
a single .pvd file and they would load as a multi-block data set:
<?xml version="1.0"?>
<VTKFile type="Collection" version="0.1" byte_order="LittleEndian">
<Collection>
<DataSet group="" part="0" file="elements.vtu"/>
<DataSet group="" part="1" file="quadraticTetra01.vtu"/>
</Collection>
</VTKFile>
Talk to you later,
-Eric
------------------------------------------------------
Eric E Monson
Duke Visualization Technology Group
On Apr 15, 2010, at 9:20 AM, Massimiliano Martinelli wrote:
>
> Hello,
>
> do you know if it is possible to write/read two different unstructured grids
> on a single .vtu file?
> I'm working with B-Spline/NURBS geometry and I would like to have the control
> net (the first unstructured grid) and the resulting discretized geometry (the
> second unstructured grid) in a single file...
>
> Thank you very much.
> MM
>
>
> --------------------------------------------------
> Massimiliano Martinelli, Ph.D.
>
> IMATI-CNR Pavia
> +39 0382 548209
> [email protected]
> [email protected]
>
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