[Paraview] Issue with structured grids and extraction of boundaries with cell data

[Mickael Philit]

Hello,

I managed to reproduce the problem. The difference between ParaView 
4.3.1 and previous version
comes to the removal of vtkPVTrivialExtentTranslator in the pipeline.
Thus, the update extent requested by the extract filter may not be 
updated correctly anymore.
It is a similar problem to this other bug:
http://marc.info/?l=paraview&m=142168609529307&w=2

Best Regards

Mickael

On 20/03/2015 16:26, Etienne Tang wrote:
> Hello,
>
> I'm working with a 3D structured dataset containing cell data. I tried
> to extract a 2D boundary of this dataset corresponding to the maximum
> index of a dimension with the Extract Subset filter and ParaView 4.3.1,
> and I found an issue: the resulting dataset is incorrect. It holds cell
> data from the opposite boundary (eg. if I try to extract the i = imax
> boundary, I get values from i = 0 boundary), and these values are
> shifted of one index in the other dimensions.
>
> This case worked with ParaView 4.1.0, maybe it is related to this other
> bug about structured data :
> http://markmail.org/message/fvatgidqbvnufgi6#query:+page:1+mid:fvatgidqbvnufgi6+state:results
> ?
>
> Here are some pictures showing the problem on a simple dataset which can
> be used to reproduce it:
>    - The simple .vts file : http://z1.gb2n.org/pv/test.vts
>    - The original dataset : http://z1.gb2n.org/pv/original_dataset.png
>    - The result of the ExtractSubset filter to extract the i = imax
> boundary : http://z1.gb2n.org/pv/extract_subset.png
>
> Best regards,