[vtkusers] Clipping multiple actors in scene

[Cory Quammen]

Federico,

If all your actors will have the same display properties, such as surface
color or coloring by the same data array, you could group your data sets
together with vtkMultiBlockDataGroupFilter [1] and then use a single
vtkClipDataSet on the multiblock data set it produces. If different actors
have different display properties, I don't believe there is a solution that
avoids doing it the hard way.

Alternately, some planar cutting can be done by changing vtkCamera's
clipping range. This would not require grouping the data sets together.

HTH,
Cory


[1]
http://www.vtk.org/doc/nightly/html/classvtkMultiBlockDataGroupFilter.html

On Mon, Oct 3, 2016 at 6:41 AM, Miorelli, Federico <
Federico.Miorelli at cgg.com> wrote:

> Dear All,
>
>
>
> I have a 3D scene with several actors coming from different sources.
>
> I would like to introduce a global clipping tool to cut with a box or a
> plane all the currently active objects, in order to "see through" the scene.
>
>
>
> I understand I can cut a single dataset with vtkClipDataSet, but I could
> not find a way to do it globally for the scene, except by manually
> iterating on my datasets and doing it the hard way.
>
>
>
> Is there a way to obtain something like this?
>
>
>
>
>
> Thanks,
>
> Regards
>
>
>
>
>
> Federico
>
>
>
> *______* *______* *______*
>
> Federico Miorelli
>
>
>
> Senior R&D Geophysicist
>
> *Subsurface Imaging - General Geophysics **Italy*
>
>
>
>
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-- 
Cory Quammen
Staff R&D Engineer
Kitware, Inc.
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