[Paraview] Add cell edges to 'surface' visualistion mode

[Brad King]

M. Nawijn wrote:
> In the surface rendering mode, I would like to see the cell vertices. At 
> the moment it seems that you show either in
> 'surface' or in 'wireframe of surface' mode. is it possible to add this 
> functionality?

You can use the "Glyph" filter to put a sphere at every vertex that is 
large enough to stick out from the surface.

-Brad