I'm not sure this is exactly what you want but you can select a point/cell
and then go to selection inspector and go to the point label/cell label tab
and toggle the visible button to show selected point or cell ids.  The
selection inspector also allows you to "select cells that include the
selected points".

Hope this helps.
Andy

On Wed, Sep 1, 2010 at 5:30 PM, Karen Lee <kylka...@gmail.com> wrote:

> Dear Paraview users and developers,
>
> I'm interested in finding the element number (ID) that's closest to, or
> containing a given point, or by clicking on the element itself in the
> diagram (2D cut of a 3D mesh). This seems to be a simple question but I
> haven't figured out. Can someone pls help?
>
> thanks,
> Karen
>
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