[Paraview] Unable to display points and lines

[David E DeMarle]

Points are the locations in space, cells are regions of space defined by
some number of points. VTK draws cells (ex. tetrahedra, quads, triangles,
and vertices), not points. A vertex is a cell defined by exactly one
point. To make vertex cells from any data set, apply the glyph filter with
glyph type 2D Glypt, Vertex.

Your data set has line type cells, but the points that define the lines are
coincident. Use the spreadsheet view to confirm.
Ex cell 0 consists of points 0 and 1, but if you look at the point data you
will see that points 0 and 1 are both:
0.3753 -1.15505 0.222222
0.3753 -1.15505 0.222222

hth





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


On Tue, Aug 13, 2013 at 10:34 AM, Pieter Barendrecht <
p.j.barendrecht at student.tue.nl> wrote:

> Is this due to the difference between points and vertices? I found a page (
> http://paraview.org/Wiki/ParaView/User_Created_Plugins) which mentions
> the conversion of points to vertices, but I'm having some problems with
> compiling this plugin. Are there any other methods resulting in ParaView
> visualizing the points and lines from my .vtu file (attached to the
> previous mail)?
>
> Pieter
>
> On Mon, 12 Aug 2013 16:10:13 +0200
> Pieter Barendrecht <p.j.barendrecht at student.tue.nl> wrote:
>
> > Hi,
> >
> > I'm having some trouble displaying the contents of the attached .vtu
> file (5 kB). In Spreadsheet View mode I can confirm that the file contains
> 32 lines and 64 points, however, nothing is displayed regardless of the
> Representation I pick. Adding filters such as a Glyph or 3D Delaunay does
> result in some visualization, but it should be possible to display just
> these line pieces, right?
> >
> > By the way, I am using ParaView 4.0.1 64-bit on Linux.
> >
> > Best,
> > Pieter
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