[vtkusers] KDTree timing demo

[David Doria]

I am trying to time vtkKdTreePointLocator for several closest point queries
for varying tree depths. I tried this:

http://www.vtk.org/Wiki/VTK/Examples/Cxx/DataStructures/KDTreeTimingDemo

but the results seem not to show the decreasing trend I would expect -
instead they seem rather random. Any thoughts on this?
<http://www.vtk.org/Wiki/VTK/Examples/Cxx/DataStructures/KDTreeTimingDemo>
Thanks,

David
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