[Paraview] Join two derived variables

[Pablo Mosquera Michaelsen]

Thank you Ken for your promt reply. I´ll try that way.

Regards,

Pablo

2011/9/12 Moreland, Kenneth <kmorel at sandia.gov>

>   I think the filter you want is append attributes.  The append attributes
> filter takes two datasets with the same topology and combines their fields
> into one dataset.  The group datasets builds an assembly of parts.  Thus,
> your group datasets filter (if I understand correctly) has two parts that
> are coincident with each other.
>
>  -Ken
>
>    From: Pablo Mosquera Michaelsen <pmosqueram at gmail.com>
> Date: Mon, 12 Sep 2011 14:20:17 +0200
> To: <paraview at paraview.org>
> Subject: [Paraview] Join two derived variables
>
>  Hello,
>
> I´m new to Paraview and I am  trying to perform a rather simple task I used
> to do with Tecplot. I have the flow field of a flat plate and I want to
> compare the boundary layer of my simulation with the theoretical velocity
> profile of Blasius. For that, both the velocity tangetial to the plate and
> the distance normal to the plate have to be turn dimensionless. This is how
> I´ve tried to do it in Paraview:
> I open the solution file with the Tecplot reader, I add two Calculator
> filters to derive the dimensionless variables, then I join the two results
> with the Group Datasets filter. At that point I can find the two
> dimensionless variables in the Object inspector when the GroupDatasets1
> object is activated in the pipeline. The problem is that only one of the two
> new variables is displayed appropriately with "Display, Color by" or by
> applying the Plot Over Line filter.
>
> Am I making some fundamental mistake?   How would you people do this?
>
> Another funny thing is that for the Group Datasets object, I see in the
> Information tab that I now have twice as many points and cells. That´s not
> what I wanted and sounds pretty inefficient. I only want to create new
> variables for already existing cells.
>
> Any help will be greatly appreciated.
>
> Regards,
>
> Pablo Mosquera
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