[vtkusers] Interaction Simultaneous for multiple renderers in one render window

[Jérôme]

Hi,
did you try to set the camera of one renderer to the other renderer?
someting like this:
renderer2->SetActiveCamera( renderer1->GetActiveCamera() );

This will do the trick if you use a camera-style interactor.

Hope that helps,
Jerome

2009/10/18 Yang, Jinzhong <jinzhong76 at gmail.com>

> Can anybody help me on this?
> Thanks.
>
> -----Original Message-----
> From: Yang, Jinzhong [mailto:jinzhong76 at gmail.com]
> Sent: Friday, October 16, 2009 3:59 PM
> To: 'VTK users group'
> Subject: Interaction Simultaneous for multiple renderers in one render
> window
>
> Hi All,
>
> I have a question on the interaction on the rendered window. Here is a
> snippet of my code:
>
>  vtkRenderer* renderer1 = vtkRenderer::New();
>  vtkRenderer* renderer2 = vtkRenderer::New();
>
>  vtkRenderWindow* renWin = vtkRenderWindow::New();
>
>  renWin->AddRenderer(renderer1);
>  renWin->AddRenderer(renderer2);
>
>  renderer1->SetViewport(0.0, 0.0, 0.5, 1.0);
>  renderer2->SetViewport(0.5, 0.0, 1.0, 1.0);
>
>  vtkRenderWindowInteractor* inter = vtkRenderWindowInteractor::New();
>  inter->SetRenderWindow(renWin);
>
>  ... (Add mapping data to renderer1 and renderer2)
>
>  // add axes
>  vtkAxesActor* axes = vtkAxesActor::New();
>  vtkPropAssembly* assembly = vtkPropAssembly::New();
>  assembly->AddPart(axes);
>
>  vtkOrientationMarkerWidget* widget1 = vtkOrientationMarkerWidget::New();
>  widget1->SetOrientationMarker( assembly );
>  widget1->SetInteractor(inter);
>  widget1->SetViewport( 0.0, 0.0, 0.2, 0.2 );
>  widget1->SetEnabled(1);
>  widget1->InteractiveOff();
>
>  renWin->Render();
>  inter->Start();
>
> With this code, the object interactions in renderer1 and renderer2 are not
> correlated. Here, I would like the interactor (inter) acts simultaneously
> for objects in renderer1 and renderer2. For example, when I rotate or zoom
> in/out the object in renderer1, the object in renderer2 should change the
> same way as object in renderer1 does. Further, with this code, the axis
> orientation will change along the object orientation in renderer1, but not
> the one in renderer2. However, if I switch the Viewports of renderer1 and
> renderer2, the axis orientation will change along the object orientation in
> renderer2, but not the one in renderer1. Can anyone give me some hints to
> resolve this problem?
>
> Thank you!
> -Jinzhong
>
>
>
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