[vtkusers] vtkVisibleCellSelector performance

David E DeMarle dave.demarle at kitware.com
Mon Jul 16 10:18:40 EDT 2007

What version of VTK/Graphics/vtkVisibleCellSelector.cxx do you have?

I added logic on July 9th (rev 1.17) to make it possible to return the
selected vertices of each selected cell. We noticed that was causing a
significant slowdown so on July 16th (rev 1.20) I committed a change that
fixed the slowdown - or so I thought.

If you are using rev 1.20, let me know what OS you are using and I'll take a

Dave DeMarle

On 7/16/07, Lim, Theodore <T.Lim at hw.ac.uk> wrote:
>  Hi,
> I am facing performance issues when using the latest CVS version of
> vtkVisibleCellSelector. I have not changed any of my own code and also in
> the test example, the speed of the CVS version is very slow. The vtk
> provided test example used to be blazingly fast, but now it takes more than
> twice the time.
> The problem seems to in the function - ComputeSelectedIds().
> Any ideas?
> Cheers,
> Theo.
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