[Paraview] Structured Grid Blanking and Scalar Ranges

[Berk Geveci]

Hmmmm. Tricky. The right way of dealing with this is probably adding a
ComputeRange() to vtkDataSet (that takes the array) and ask it to
compute the range. Each sub-class could then take blanking into
account. This would involve quite a few changes, I am afraid.

On 9/6/07, Sean Ziegeler <seanzig at users.sourceforge.net> wrote:
> I'm working on a new reader that creates a vtkStructuredGrid and sets
> the point visibility array for invalid values.  It works fine, except
> that it doesn't affect the scalar ranges.  Looking at the code, I can
> see that vtkPVArrayInformation does indeed not take the blanking array
> into account for structured grids.  It also looks like changing that
> behavior would be involved, as it processes each scalar array without
> regard to its respective containing data set, so I'm not going to worry
> about that just yet.
>
> Is there some other way to set the scalar range manually?
>
> Preferably in such a way that the manual range is maintained when passed
> through filters, but that's probably a bit much to ask.
>
> I'm working with 3.1.0 right now, but I'm willing to switch to head if
> necessary.
>
> Thanks,
> Sean
>
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