[vtkusers] Both layers don't show up when setting a background image

[Bill Lorensen]

Maybe this c++ example will help?

https://lorensen.github.io/VTKExamples/site/Cxx/Images/BackgroundImage/

Bill

On Tue, Aug 15, 2017 at 10:37 AM, Neel Patel 0-0-0
<siva.yedithi at gmail.com> wrote:
> Hi All,
>
>      I have a question about setting a background image. When I set the
> layers individually, as in only one layer is rendering it shows up fine, but
> when I try to have both render only one layer shows up. I've followed the
> background image example and have pretty much the same setup. I'm using WPF
> and C# with Activiz for my application.
>
>       vtkImageActor actor1 = vtkImageActor.New();
>       actor1.SetInput(mapToColors);
>
>       vtkRenderer ren1 =
> renderWindowControl1.RenderWindow.GetRenderers().GetFirstRenderer();
>       ren1.ResetCamera();
>       ren1.SetLayer(0);
>       ren1.InteractiveOff();
>       ren1.AddActor(actor1);
>
>       vtkImageActor actor2 = vtkImageActor.New();
>       actor2.SetInput(mapToColors2);
>
>       vtkRenderer ren2 =
> renderWindowControl1.RenderWindow.GetRenderers().GetFirstRenderer();
>       ren2.ResetCamera();
>       ren2.SetLayer(1);
>       ren2.AddActor(actor2);
>
>      vtkRenderWindow renWin = renderWindowControl1.RenderWindow;
>      renWin.SetNumberOfLayers(2);
>      renWin.AddRenderer(ren1);
>      renWin.AddRenderer(ren2);
>      renWin.Render();
>
>     I'm not sure if it's because both my renderers point to the same window,
> that it's only showing one or
>     if it might be something else. Any help would be appreciated. Thanks.
>
>                        Regards,
>                             Neel
>
>
>
>
>
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