[Paraview] Join two derived variables

[Utkarsh Ayachit]

Pablo,

Group Datasets filter is combines two or more datasets to form a
multiblock dataset comprising of the original datasets. I don't think
that's what you mean to do here. When you apply the two calculators,
are you applying both to the reader? You may want to apply them one
after the other i.e. input of Calc2 is Calc2. Then when you do a plot
over line, you'll see both the variables.

Utkarsh

On Mon, Sep 12, 2011 at 8:20 AM, Pablo Mosquera Michaelsen
<pmosqueram at gmail.com> wrote:
> 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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