[Paraview] How to display the cellNormals as vectors?

[Berk Geveci]

Does the file actually contain normals? I am guessing not. In that case, do:

Extract Surface
Generate Surface Normals
Glyph

If you had a vtp file (polydata) instead of vtu (unstructured grid), you
wouldn't need to Extract Surface.

-berk


On Mon, Apr 15, 2013 at 7:27 PM, Pieter Barendrecht <pieter at redpanda.nl>wrote:

> Hi all,
>
> I have just imported a 3D parametric surface in Paraview (from a .VTU file
> generated by a Python script), and I'm wondering how to display the
> cellNormals as actual vectors. Since a cellNormal has an X, Y and Z
> component, it should be possible to use these three scalar values to create
> a vector, pointing from the corresponding cell.
>
> I know I can create a vector field with the Glyph function, but I'm not
> sure how to continue from there. I cannot select any Scalars or Vectors
> from the two dropdown menus/lists (they are enabled but there is nothing to
> select).
>
> Any ideas on how to proceed would be very welcome!
>
> Best,
> Pieter
>
> PS: I'm using Paraview 3.98.1 on a Linux machine.
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