[vtkusers] getting reasonable results from vtkPolyDataConnectivityFilter

[David Gobbi]

Hi Michel,

Try passing the data through vtkCleanPolyData first, before passing
it to vtkPolyDataConnectivityFilter.  This will remove degenerate points
that are foiling the connectivity testing.

 - David


On Wed, 13 Oct 2004, Michel Audette wrote:

> Hi everyone,
>
> I'm using vtkPolyDataConnectivityFilter, with
> SetExtractionModeToAllRegions(), and the number of extracted regions seems
> quite high to me. For a brain surface, I'm expecting more or less one
> connected surface, but I'm getting 200 regions. Is this the right function
> to use to obtain the number of connected vtkPolyData surfaces? Is there a
> parameter I should be setting, or a better function to use?
>
> Cheers,
>
> Michel
>
> Michel Audette, Ph.D.,
> Research Fellow, Surgical Simulation,
> Surgical Assist Technology Group,
> AIST,
> Namiki 1-2,
> Tsukuba, Japan,
> 305-8564.
> --------------------------------------------------------
> "If you think you can do it, you're right.
>  If you think you can't do it, you're still right."
> - Henry Ford
>
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