[vtkusers] Problem with the vtkRenderWindowInteractor

[Andrea Bulgarelli]

Hello to everyone,
I'm a new user of vtk. I'm developing a 3D
representation of a scientific satellite (it's name is
AGILE, an Italian Space Agency satellite). In this
first version I have used only vtkCubeSource to
represent the component of the satellite and the
vtkRenderWindowInteractor to manage the scene. I need
to color the actors with different colors depending of
the data coming from the satellite.
In my application I have two thread. One that manage
the vtkRenderWindowInteractor, and one that set the
color of the actor. 
When I set these colors, I can see the new colors in
the scene only when I move with the mouse the scene in
the window interactor. But I would like that the
render of the scene is performed when the scene are
changed (that it means, when I have set new colors),
and not when the user interacts with the scene.
I have tried with the Render() method of tha actors,
or with the render() method of the vtkRenderer (or the
Render() method of the vtkRenderWindowInteractor), but
the only result that I get is that the actor with the
new color disappear when I interact with the mouse
(they don't disappear if I change the color and don't
use the render() methods but only interact with the
render window).
I think that the solution is very simple, but I'm not
able to found it in the vtk books.

Thank you very much in advance for your help.

Best regards

Andrea Bulgarelli
AGILE Team (Italy)

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com