[vtkusers] Specifying a vtkRenderWindowInteractor

[Vidyadhar]

My experience is that second approach creates a vtkWindow without parent and 
Start method does not exit till you close that window. First approach is 
suitable if a window is already created (say windows form or some control 
window) which is assigned to be parent of render window. So first approach 
is suitable for embedding render window in other GUI controls while second 
approach is suitable for console application.
HTH
Vidyadhar
----- Original Message ----- 
From: "Phil Goddard" <philgoddard at telus.net>
To: <vtkusers at vtk.org>
Sent: Wednesday, June 25, 2008 10:20 AM
Subject: [vtkusers] Specifying a vtkRenderWindowInteractor


>
> I've noticed that the examples use two different approaches to setting
> interactors (shown below).
>
> Can anyone comment one whether the approaches are equivalent?
> When would I use one instead of the other?
> Is either a "right", "better", or "more modern" approach?
>
> Approach One:
> vtkRenderWindow *window = vtkRenderWindow::New();
> vtkRenderWindowInteractor *interactor = vtkRenderWindowInteractor::New();
> window->SetInteractor(interactor);
> window->Render();
>
> Approach Two:
> vtkRenderWindow *renWin = vtkRenderWindow::New();
> vtkRenderWindowInteractor *iren = vtkRenderWindowInteractor::New();
> iren->SetRenderWindow(renWin);
> iren->Initialize();  // Some examples have an Initialize and some do 
> not --
> why?
> iren->Start();
>
> Thanks
> Phil.
>
>
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