[vtkusers] Obbtree...

[David Gobbi]

Hi Michal,

The orientation of the polygons in your polydata might be
reversed.  Try passing the polydata through vtkReverseSense.

 - David

--
  David Gobbi, MSc                       dgobbi at irus.rri.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Wed, 8 May 2002, Michal Chlebiej wrote:

>
> Hi all,
>
> I don't understand how does obbtree works - i have 2 closed
> surface-polydata sets - when i check the whole bounding box for
> inside/outside points (voxels) - i get inversed results: 1first object:
> in the first  object -1 is for inside points, +1 outside.., but for the
> second object the result is reversed..
>
> can anybody tell me what's going on??
> (when i've had not completely closed surface there were some points that
> were outside points assumed as inside.. but now there is no such a problem
> - but why this inversion?)
>
> michal
>
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