[Paraview] weird behavior with GroupDatasets filter

[Utkarsh Ayachit]

Ryan,

What are the extents of the two vtr files? Are you sure that the U
(partial) is indeed lost or we just don't see it since the second VTR
without the variable gets rendered on top of the one that has it?

Utkarsh


On Fri, Jan 17, 2014 at 1:14 PM, Ryan Abernathey
<ryan.abernathey at gmail.com>wrote:

> Hello,
>
> I have encountered a confusing behavior with the GroupDatasets filter. I
> hope you can help me resolve it. My datasets are much too large to share on
> the list, so hopefully the attached screenshots will suffice.
>
> My pipeline begins with two VTK sources, both using the same rectilinear
> grid. They are both timeseries: UV.0000*.vtr and THETA.0000*.vtr, with
> identical sequence numbering. UV contains two point-data arrays (U and V),
> while THETA contains only one (THETA).
>
> I would like to group these two sources together so I can, for example,
> use the calculator to calculate quantities based on both. However, when I
> use the GroupDatasets filter, only one of the two sources is passed through
> correctly. Even though they both appear, only the most recently added
> dataset actually passes through its values.
>
> This should be clear from the screenshots.
>
> Here is the U variable, from the original source (UV.00000*)
> [image: Inline image 1]
>
> Here is the same variable from the GroupDatasets filter. Just zeros as far
> as I can tell, although, curiously, the range is still detected correctly
> for the colorbar. The variable name has also been changed to U (partial).
> [image: Inline image 2]
>
> In contrast, here is the THETA (partial) variable within the GroupDatasets
> filter. As you can see, its values made it through fine.
> [image: Inline image 3]
>
> Please help me! This seems like a very straightforward thing to do, and I
> can't understand why it doesn't work.
>
> -Ryan
>
> p.s. I am using 4.1.1, but I verified the same problem happens in 4.0.1.
> p.p.s. Sorry for the low resolution of the images. The mailing list has
> strict size limits.
>
>
>
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