[Paraview] Resample with dataset.

[Berk Geveci]

Unfortunately, this is not the correct way of doing it. You are
changing the name of the output array which happens to also be the
input array (thanks to CopyAttributes). Changing your input in a
filter is a no no in VTK. You have to deep copy the attributes if you
want to do this. In the future, I think we will create another level
of indirection such that it will be possible to shallow copy the
contents of arrays (i.e. the pointer) for the purpose of renaming (and
else).

-berk

On Sun, Mar 8, 2009 at 7:50 AM, Jacques Papper <jpapper at ara.co.uk> wrote:
>  Hi all, I made a quick modification to the vtkProbeFilter.cxx to pass the
> input data as well as the interpolated data to the output. This is so I can
> calculate deltas between two configurations without having to use a python
> programmable filter. Could you tell me if you think this modification is the
> right way of doing what I want? (It seems to work, but I'm not absolutely
> sure this is a correct way of doing things.)
>
>
>
>
>  // First, copy the input to the output as a starting point
>  output->CopyStructure(input);
>  output->CopyAttributes(input); //<JP - copies input data as well
>
>  vtkPointData* outPD;
>
>  outPD = output->GetPointData();
>
>  // Change name of input data
>  int numArrays  = outPD->GetNumberOfArrays();
>  for(int i = 0 ; i < numArrays; ++i){
>    vtkAbstractArray * absar = outPD->GetAbstractArray(i);
>    absar->SetName(strcat(absar->GetName(),"_original"));
>  }
>
> Jacques PAPPER
> Applied CFD Team Leader
> Tel: +44 (0) 1234 324677
>
>
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