[Paraview] Clip filter doesn't operate on points

[Utkarsh Ayachit]

In general, many VTK filters, including mappers iterate over cells. So
if you don't create at least single cell consisting of all the points
(a poly-vertex cell), they will be skipped.

Utkarsh

On Mon, Feb 7, 2011 at 12:37 PM, Ken Olum <kdo at cosmos.phy.tufts.edu> wrote:
> I created a file with a set of points in an unstructured_grid.  Glyph
> was happy to display glyphs of the locations of the points.  But when I
> wanted to select a subset of the points with Clip, it never passed on
> any of them.  Apparently Clip doesn't work with points, but only with
> cells.  When I made a vertex at each point, it worked fine.
>
> I can't see any reason why Clip should not work with points, but if
> there is at least it should be documented.
>
> Thanks.
>
>                                        Ken
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