[vtkusers] Store multiple versions of an array in a vtp file

[David Doria]

>
> Hi David,
> I really appreciate the speedy response. This query was from a co-worker, I
> will suggest to him that he write (and contribute) new code to do this, but
> he is just getting started with vtk, so that might not happen! I guess this
> is not trivial? Now that I think about this again briefly, why not store as
> FieldData ?
>
> cheers, Dave P
>
> Hm I didn't think about writing it to FieldData, but there would have to be
some support in Paraview to iterate over arrays in the FieldData. Ie. if I
wrote arrays Clusters_1, Clusters_2, etc to FieldData, how would I tell
Paraview "set frame 1 to color by Clusters_1, set frame 2 to color by
Cluster_2, etc"?

Dave
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