[vtkusers] vtkQuadricLODActor and NumberOfDivisions?

[David Doria]

On Fri, Feb 5, 2010 at 11:36 PM, Bill Lorensen <bill.lorensen at gmail.com>wrote:

> I looked at the source of QuadricLODActor. It controls the number of
> divisions. Even if you override the divisions in the LOD filter, it
> changes them to what it thinks they should be. It  Apparently this is
> not a bug. It is a design decision. There is an algorithm in the code
> to pick the number of divisions based on the desried frame rate.
>
> On Fri, Feb 5, 2010 at 12:47 PM, Arnaud GELAS
> <arnaud_gelas at hms.harvard.edu> wrote:
> > Bill,
> >
> > I have just tried, but I can not see any difference...
> >
> > Arnaud
> >
> > On 02/05/2010 08:32 AM, Bill Lorensen wrote:
> >>
> >> Arnaud,
> >>
> >> There is AutoAdjustNumberOfDivisions which defualt to On. Try to apply
> >> AutoAdjustNumberOfDivisionsOff()
> >>
> >> Bill
> >>
> >> On Thu, Feb 4, 2010 at 4:55 PM, Arnaud GELAS
> >> <arnaud_gelas at hms.harvard.edu>  wrote:
> >>
> >>>
> >>> Hi guys,
> >>>
> >>> It seems that the number of divisions used by the clustering method is
> >>> set
> >>> to a default value, and can not be modified.
> >>> Is it a normal behaviour?
> >>>
> >>> I attach one example, that I was going to submit on the wiki, where you
> >>> can
> >>> (theoretically) change the number of divisions for the clustering
> method,
> >>> but I can't see any difference...
> >>>
> >>> Arnaud
>
>
I tried to set the framerate extremely high, but still the sphere still
appears smooth:
http://www.vtk.org/Wiki/VTK/Examples/Visualization/QuadricLODActor

Arnaud, even before we try to change the number of divisions - can you see a
difference (smooth sphere vs not smooth sphere) when you vary the frame rate
from say 15 to 1e20 ?

Thanks,

David
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100206/9a87f670/attachment.htm>