[Paraview] Scalars in Polydata

[Bikash Agarwal]

Thanks Amy. Is it possible to achieve this from within the code of my custom
filter? So essentially, my code reads this polydata object which is a list
of point ids and somehow be able to identify which point is associated with
which line.

Bikash

On 4/17/07, Amy Squillacote <amy.squillacote at kitware.com> wrote:
>
> Hi Bikash,
>
> Try using the Pick filter in ParaView. It allows you to pick either
> cells or points with either a 3D coordinate ("World Point") or an id.
> You should use the Cell pick type. On the Parameters tab, it will list
> the cell and the points used by this cell as well as any point-centered
> or cell-centered data attributes.
>
> If you are picking with a 3D coordinate, you can interactively select
> the point by either moving the point widget in the 3D scene or by
> placing the mouse cursor over a particular location and pressing the 'P'
> key.
>
> - Amy
>
> Bikash Agarwal wrote:
> > Hi All,
> >
> > My question relates to legacy VTK file formats. For a polydata .vtk
> > file with points and lines how can identify which points are being
> > used by a particular line in paraview.
> >
> > I would like to identify the points used by each line and then use
> > them for calculations in a custom filter. I have given an example
> > below to demonstrate what I mean.
> >
> > #vtk DataFile Version 2.0
> > My data
> > ASCII
> > DATASET POLYDATA
> > POINTS 6 float
> > 0.0 0.0 0.0
> > 1.0 1.0 1.0
> > 2.0 2.0 2.0
> > 3.0 3.0 3.0
> > 4.0 4.0 4.0
> > 5.0 5.0 5.0
> > LINES 3 9
> > 2 0 1
> > 2 2 3
> > 2 4 5
> >
> > In this case after this has been read into paraview, I want to be able
> > pass this data to my filter and identify which points are being used
> > by which lines. I was thinking of assigning scalars to each line which
> > might be a unique id, but am not sure how to implement that or if that
> > is a correct approach.
> >
> > Thanks,
> > Bikash
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > ParaView mailing list
> > ParaView at paraview.org
> > http://www.paraview.org/mailman/listinfo/paraview
> >
>
> --
> Amy Squillacote
> Kitware, Inc.
> 28 Corporate Drive
> Clifton Park, NY 12065
> Phone: (518) 371-3971 x106
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://public.kitware.com/pipermail/paraview/attachments/20070417/0418c31a/attachment.html