[vtkusers] cleaning up a surface rendering

[Amy Henderson]

Hi John,

If you turn on ColorRegions in the vtkConnectivityFilter, then the filter 
adds a point data scalar array containing the region ids.

- Amy

At 01:02 PM 3/25/2004, John Hunter wrote:
> >>>>> "Amy" == Amy Henderson <amy.henderson at kitware.com> writes:
>
>     Amy> John, vtkConnectivityFilter should be helpful to you.  See
>     Amy> http://www.vtk.org/doc/nightly/html/classvtkConnectivityFilter.html.
>
>Hi Amy,
>
>Thanks for the speedy reply.  That helped a lot.  I'm very close to
>having the functionality I need, but am stuck on one point.
>
>I use the connectivity filter with SetExtractionModeToAllRegions and a
>vtkWorldPointPicker to get the x,y,z coords of a point I click on.  I
>then call
>
>     x,y,z = picker.GetPickPosition()
>     connect.SetClosestPoint(x,y,z)
>     # now I just need to get the id of the region closest point and
>     # then call
>     connect.DeleteSpecifiedRegion (id)
>
>Ie, I set the closest point but don't know how to get the id of the
>region that is at the closest point.
>
>Any suggestions here?
>
>Thanks,
>John Hunter
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