[vtkusers] Find corner points of closed surface

[Marco Nawijn]

I am not aware (but I am also not an expert) of a particular filter or
method
to get the corner points of a surface in general. However, for the
particular
surface that you show, it should not be that difficult, because each of the
corner points is on the bounding box of the grid. So assuming that the
you have collected the points in a vtkPoints object, you can first extract
the bounds and afterwards find the points that are on (closest to) each
of the sides of the bounding box. Not that hard, not immediately obvious
either.

Marco


On Wed, Dec 30, 2015 at 6:57 AM, madz <madaramh at gmail.com> wrote:

> I have a surface as displayed below. I need to find the 4 corner points
> (circled in black) of the surface.
>
> <http://vtk.1045678.n5.nabble.com/file/n5735700/CORNER_POINTS.png>
>
> Is there a method to achieve this in VTK?
> Any help would be appreciated.
>
> Thanks.
>
>
>
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