[Paraview] Invalid array name

[Berk Geveci]

I think Group Datasets is causing the issue. It creates a multi-block
dataset that contains all of its inputs. That still means that blocks
do not share arrays. Do these datasets have the same topology (mesh)?
If they do, you should be able to use Append Attributes instead. If
they do not, you have to resample one mesh over the other using the
Resample with Dataset filter. I am not sure how clear I was so please
let me know if I am not making sense :-)

On Tue, Jun 30, 2009 at 6:05 PM, Michael
Zöllner<michael.zoellner at rwth-aachen.de> wrote:
> Hi all,
>
> I want to apply the calculator filter on the results of some 3D numerical
> simulation but keep getting the following error message (it appears about
> fourty times in the Ouput Messages window):
>
> ERROR: In
> /home/berk/Work/ReleaseBuilds/ParaView3/VTK/Graphics/vtkArrayCalculator.cxx,
> line 305
> vtkArrayCalculator (0x882fbf8): Invalid array name: VelSca0
>
> About the data: I have opened a file Conc_Anim.pvd with one float (Conc_0)
> and another file VelScalar_Anim.pvd with three floats (VelSca0, VelSca1, and
> VelSca2) for the velocities in x, y, and z direction. To be able to do some
> calculations with data from both files, I used Group Datasets. The
> calculation should be something like
>
> Conc_0*(VelSca0*iHat+VelSca1*jHat+VelSca2*kHat)
>
> though the error message appears whatever I enter as a formula.
>
> Does anybody have any idea what went wrong here?
>
> Thanks,
> Michael
>
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