[vtkusers] Extracting shell from unorganized points

[David Doria]

On Wed, Jul 2, 2014 at 10:15 AM, Meysam Torabi <meysam.torabi at gmail.com>
wrote:

> Hello,
>
> Is there a class in vtk to extract a shell (external boundary) from some
> unorganized points? The attached image explains the problem.
>
> Thanks,
> Meysam
>
>
>
> ​
>
>
I don't believe there is anything like this built into VTK, but I wrote
some code for this as part of a project one time. You can read about the
technique here:

https://github.com/daviddoria/BoundingPolygon/blob/master/VTKJournal/BoundingPolygon.pdf
(click "view raw" to download)

And the code is here:
https://github.com/daviddoria/BoundingPolygon/blob/master/FindBoundaryPoints.cxx

(the root of the repository is https://github.com/daviddoria/BoundingPolygon
)

Good luck,

David
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