[Paraview] Fw: How do we get the indexes and IDs from the extracted selections to be seen in the Trace?

[Cory Quammen]

On Wed, Jun 6, 2018 at 9:37 AM Sarah Flaherty <sjflaherty at loyola.edu> wrote:

> If it does not show in the trace, is it possible to access those numbers
> through the python shell?
>

Alas, the situation is the same.

As a workaround, you can add a GenerateIds filter to your data to generate
point and cell IDs, and add an Extract Selection filter with Preserve
Topology on, which generates a 'vtkInsidedness' point and cell array
marking which points/cells have been selected. Then, you can add an Append
Attributes filter to both the GenerateIds and Extract Selection filters to
combine the IDs and vtkInsidedness arrays. Finally, add z Threshold filter
and threshold by the vtkInsidedness array. The result will be a data set
containing only selected cells and points with the original cell/point IDs.
You can then access these IDs through Python.

Cory


> Sarah
> ------------------------------
> *From:* Cory Quammen <cory.quammen at kitware.com>
> *Sent:* Wednesday, June 6, 2018 9:31:41 AM
> *To:* Sarah Flaherty
> *Cc:* paraview at public.kitware.com; ParaView
> *Subject:* Re: [Paraview] Fw: How do we get the indexes and IDs from the
> extracted selections to be seen in the Trace?
>
> Hi Sarah,
>
> I'm afraid that selections are not currently well supported in Python.
> Because of that, they are not recorded in Python traces.
>
> It is on our todo list to provide a real Python API for selections in one
> of the next ParaView releases.
>
> Best regards,
> Cory
>
> On Wed, Jun 6, 2018 at 9:17 AM Sarah Flaherty <sjflaherty at loyola.edu>
> wrote:
>
> Paraview,
>
> I am trying to have the index of the points that are selected and
> extracted displayed in the trace. They are seen in the Properties Bar on
> the right when the ExtractSelection1 is active, however they are not seen
> in the trace. How do I get this information into python script or the trace?
> Thank you,
> Sarah Flaherty
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> --
> Cory Quammen
> Staff R&D Engineer
> Kitware, Inc.
>


-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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