[vtkusers] LOD filter for glyphs

Amy Squillacote amy.squillacote at kitware.com
Mon Jan 8 16:10:23 EST 2007


Hi Patrick,

You could try using vtkMaskPoints in your pipeline before the 
vtkGlyph3D. This filter allows you to "turn on" only every nth point in 
your dataset. See 
http://www.vtk.org/doc/nightly/html/classvtkMaskPoints.html for more 
information.

- Amy

Patrick boenzli wrote:
> hi vtk-wizards!
>
> I'm currently looking for a LOD (level of detail) filter for glyphs (or
> any data sets): With big input data size glyphs fileds get very crowded
> and unhandy. To get better overview I would like to use/write a filter
> that only displays glyphs for a subset of the field.
> Each glyph then represents a set of glyphs (depending on the level of
> detail)
>
> I found LOD-Actors but no LOD filters, is there anything usable in the
> vtk library that I'm not aware of? If not, I will write such a filter in
> the next few days (and commit my work to the vtk project if the project
> would be interessted in the filter).
>
> I tought about using the obb dicer to split the dataset into subsets and
> use them for the LOD-filter.
>
> Do you have any tips for me to start with?
>
> thank you all!
> best wishes,
> Patrick
>
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