[Paraview] Paraview no more showing glyph

[Federico Nardi]

Hi all,

I'm writing a code for Surface Reconstruction with Level-Set method and 
I use VTK to store 3D data and visualize them with Paraview. So far, 
Paraview has always worked fine, thus I can't understand why I'm having 
the following problem. As shown in the attached picture, I have a 
grid.vtp file which contains a set of points. To visualize these points, 
I used to add a Glyph filter and choose the sphere as glyph type. This 
procedure worked fine since last few days, now the screen is empty. I 
tried also with other files, and the problem seems to be the Glyph 
filter. Can you please tell me how can I solve this problem?

Thaks.
Federico
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