[vtkusers] How many actors do I need?

[Andrew Wilford]

Hi,

I am using VTK to view CAD data in 3D. This has worked very well so far. One
requirement I need to add now is the ability to selectively view certain
objects. My database considers certain objects to belong to certain layers,
which I would like to set visible/invisible as needed.

So far, all my data has been associated with one instance of vtkActor in the
pipeline. My question is, do I need to associate each object in the CAD
database with a separate instance of vtkActor and set the actors' visiblity,
or is there a better way of doing this?

Thanks in advance!

Andrew Wilford