[Paraview] showing all points of a structured dataset

[Jérôme]

Hi,
the same happens if you want to visualize an vtkImageData as "points" or
"surface". Only the outer topological entities are displayed, because of the
mapper internal functionning. See thread "unstructured grid + tetrahedrons"
in the vtk-users mailing list.

In a nutshell, the outer geometrical entities are considered as vertices by
the mapper. Using a glyph filter before visualization with a 2D glyph
(Vertex type) will attached a topological 0D entity (vertex) to all the
geometrical entities (points). Attached is an example of 12^3 volume with 2
different visualizations: left is the volume fitlered through a glyph filter
with vertex type, right is "Style->Representation->Points".

HTH
Jerome

2010/1/15 Hom Nath Gharti <hng.email at gmail.com>

> One possible idea would be:
>
> Filters -> Alphabetical -> Glyphs
>
> On Fri, Jan 15, 2010 at 9:39 AM,  <nagi at toothycat.net> wrote:
> > Hi,
> >
> > I've got a 3x3x3 set of points, and am trying to show all of the points
> > individually. My VTK file looks like
> >
> > # vtk DataFile Version 2.0
> > Volume example
> > ASCII
> > DATASET STRUCTURED_POINTS
> > DIMENSIONS 3 3 3
> > ASPECT_RATIO 1 1 1
> > ORIGIN 0 0 0
> > POINT_DATA 27
> > SCALARS volume_scalars char 1
> > LOOKUP_TABLE default
> > 0 0 0 0 0 0 0 0 0
> > 0 0 0 0 0 0 0 0 0
> > 0 0 0 0 0 0 0 0 0
> >
> >
> > When I set 'Representation' under 'Display' to points, the point at the
> > centre is missed out. In fact, for any 3d dataset of structured points I
> > have tried, the interior points are missed out.
> >
> > The points look like they are there, since 'Information' tells me there
> are
> > 27 points.
> >
> > Any ideas how I can see all the points?
> >
> > Thanks,
> >
> > Nagi
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