[vtkusers] Rendering without displaying a window

[Jeff Lee]

Greg Scott wrote:

> Hi everyone,
>  
> Does anyone know of a way to render in VTK without actually displaying 
> the result; all I need is the pixel data generated by the rendering. 
> How would one specify the size of the rendering produced?
>  
> A similar problem is as follows. I want to create a renderering of a 
> specific size, say 256 x 256. In Java, I find this problematic since 
> whatever I add the vtkPanel to will resize it according to its own 
> agenda. Does anyone know a work around? (As you can see, by avoiding 
> drawing the window completely, as in my first question, you also avoid 
> this resize issue).

vtkPanel takes its size from the container in which it is placed.  I 
would suggest using a layout manager which doesn't resize its contents - 
like FlowLayout, etc...
-Jeff

>  
> Any advice would be very much appreciated,
>  
> Greg
>