[vtkusers] Show/hide actors efficiently

[Bertrand de Boisdeffre]

If you know at the beginning where actors are positionned ( behind or in
front of plane ) , so you can divide your actors in 2 assemblies. In this
case, look at this class : "vtkAssembly". This class allows to change
properties for all actors belonging to the assembly.
If you try to check if the actor is behind/front of a plane and then change
the properties, I don't have solution.

2010/8/31 Nicolas Rannou <nicolas_rannou at hms.harvard.edu>

> Hi all,
>
> I would like to show/hide actors which are:
>  - behind or in front of a plane widget
>  - inside or outside a box widget
> and to be able to interact with the widgets in real time to modify the
> visibility of the actors.
>
> My main issue is that I am working with thousands of actors and checking
> the bounding box of each actor appears not to be efficient enough...
>
> Would somebody know a good way to deal with high number of actors?
>
> Thanks,
>
>    Nicolas
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-- 
Bertrand de Boisdeffre
Etudiant 2A  SICOM Phelma Grenoble-INP
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