[Paraview] ParaView Catalyst: export point data

[David E DeMarle]

Ah, then you can skip the filter and directly make a vtkUnstructuredGrid
containing only points and VTK_VERTEX cell that index them.

See section 3 of the users guide for details. Somewhere in your adaptor you
will have something like the following:


output = vtk.vtkUnstructuredGrid()
pts = output.GetPoints()
cells = output.GetCells()
for i in particles.len():
  pids = [i]
  pts.InsertNextPoint(next_coordinate)
  cells.InsertNextCell(vtk.VTK_VERTEX, 1, pids)

When you get that working you will want to replace the inserts with direct
memory references to the  possible.


David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Fri, Jan 6, 2017 at 12:25 PM, <valenpe7 at email.cz> wrote:

> Hello,
>
> thank you, but I mean how to pass these point data computed by a
> simulation code to ParaView in order to visualize them insitu. The Catalyst
> examples (https://gitlab.kitware.com/paraview/paraview/tree/master/
> Examples/Catalyst) usually use some type of a grid and data are then
> attached onto it.
>
> Cheers,
>
> Petr Valenta
>
> ---------- Původní zpráva ----------
> Od: David E DeMarle <dave.demarle at kitware.com>
> Komu: valenpe7 at email.cz
> Datum: 6. 1. 2017 18:00:34
> Předmět: Re: [Paraview] ParaView Catalyst: export point data
>
> Glyph Filter, type=2D subtype=points will create 1D cells (VTK_POINTS
> type) for every point (those that are attached to cells and those that are
> not used by any cell). To get only those points that are not used by cells,
> you may need the programmable filter.
>
>
> David E DeMarle
> Kitware, Inc.
> R&D Engineer
> 21 Corporate Drive
> Clifton Park, NY 12065-8662
> Phone: 518-881-4909 <(518)%20881-4909>
>
> On Fri, Jan 6, 2017 at 11:49 AM, <valenpe7 at email.cz> wrote:
>
> Hello,
>
> is there any way how to export data using Catalyst which are not attached
> to any grid (like particles that are characterized only by the vector of
> their location)?  Thank you!
>
> Petr Valenta
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/opensou
> rce/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview
>
>
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at http://www.kitware.com/
> opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> http://public.kitware.com/mailman/listinfo/paraview
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170106/3f8727fa/attachment.html>