[vtkusers] KDTree BuildLocator not working

[David Doria]

> Maybe this is a bug?
>
> This doesn't work (the "you must build the tree first" error):
> http://www.vtk.org/Wiki/KDTree_-_Closest_Point
>
> But this works fine:
> http://www.vtk.org/Wiki/KDTree_-_Closest_Point_%28vtkKDTreePointLocator%29
>
> Any thoughts?
>
> Thanks,
>
> David
>

Can anyone explain why you should use vtkKdTree vs
vtkKdTreePointLocator or vice-versa?

Thanks,

David