[Paraview] Unable to use "Append attributes" filter after using "Resample with dataset" filter

[Utkarsh Ayachit]

George,

What version of ParaView are you using?

Utkarsh

On Sat, Nov 13, 2010 at 4:26 AM, George <george.gerber at gmail.com> wrote:
> Hi Paraviewers,
>
> I would like to do a mesh refinement analysis using the predefined filters
> of paraview (I can already do such an analysis with numpy and pylab).
> My objective is to calculate the difference between the pressure fields of a
> fine grid simulation and a coarse grid simulation.
>
> I have two OpenFoam simulations: A fine grid simulation and a coarse grid
> simulation.
> I have imported the results of both simulations into paraview.
> Then I have resampled the fine grid solution as follows:
> Select fine grid source >Resample with dataset > Source>Coarse grid
> Then I apply a calculator on the resampled solution and basically rename the
> point pressure variable to 'presampled'
> I also apply a calculator on the coarse solution and rename the point
> pressure variable to 'pcoarse'
>
> The next step should be:
> Select both calculators and apply the 'Append attributes' filter.
> However, this filter is not selectable at this stage (grayed out)
> I can confirm that both calculators have the same number of points and
> cells.
>
> Can anyone tell me what I am doing wrong or whether there is a better way of
> performing a grid sensitivity study in paraview?
>
> Thank you,
> George
>
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