[Paraview] Adding interface to vtkVertexGlyphFilter

[David Doria]

Can we add an interface to vtkVertexGlyphFilter? Many times a data set
will have geometry which is supposed to be interpreted as 0D topology,
but in Paraview nothing is displayed. A sphere glyph with a small
radius works, but for big data sets it is not practical. Either the
Filters->Glyph could have Glyph Type = "Vertices", or a new filter
could be added to the menu (Filters -> VertexGlyphs).

Thoughts?

Thanks,

David