[vtkusers] Multiple renderers

[Jens G.]

Hi
You can have multiple renderers in a render window. Spezify the area of the 
window for each renderer with vtkRenderer::SetViewport(...)

	Greetings
		Jens

Am Dienstag, 10. Januar 2006 14:19 schrieb Jesús Spí­nola:
> Hello,
>
> i'm developing a simple application that visualizes medical datasets in
> different views ( axial, coronal , sagittal ) with vtkImageViewer2.
>
> My purpose is to draw simple objects ( like spheres, quads, lines, etc ) on
> top of the current view, that represent annotations of that volume ( like
> distances, angles , ROI's, etc )
> For example, if i'm taking a distance, i wan't to see a little circle for
> the first and the second point and a line that connects both points.
>
> I thought that could be a good idea to draw in a different renderer these
> geometrics objects and then have two renderers in the same render window (
> the vtkImageViewer2 one ). My question is how do I have two different
> layers ( the renderers ) for the same render window in vtkImageViewer2 to
> do this.
>
> Maybe having two renderers is not the best solution, so if there's any
> better solution, what's the best approach to do this?
>
> Thanks in advance