[vtkusers] Superimpose images

[Erik Tuerke]

Henrik Westerberg wrote:
> Hi Erik, vtkusers,
>
> I found that you can't transform ImageActors in actor mode even though it inherits from Prop3D.
>
> To get round this I use the following pipeline (use whatever image reader you like):
>
> vtkJPEGReader ->vtkDataSetMapper -> vtkActor
>
> If you are using the default InteractorStyle/RenderWindowInteractor, then press "a" and you can
> translate/rotate/scale images on top of each other. You can also make images transparent with
> youractor.getProperty().SetOpactity(0.5).
>
> regards,
> Henrik
> ________________________________________
> From: vtkusers-bounces at vtk.org [vtkusers-bounces at vtk.org] On Behalf Of Erik Tuerke [tuerke at cbs.mpg.de]
> Sent: 02 November 2010 18:55
> To: vtkusers at vtk.org
> Subject: [vtkusers] Superimpose images
>
> Hi!
>
> I have a problem when visualizing two images. VTK visualizes the images
> side by side in my window.
>
> The code is the following:
>
> This is done for both images:
>
> ...
> m_ExtractSagittal->SetInput( m_ImageVector[m_currentTimestep] );
> m_MapperSagittal->SetInput( m_ExtractSagittal->GetOutput() );
> m_ActorSagittal->SetMapper( m_MapperSagittal );
> m_ActorSagittal->GetProperty()->SetInterpolationToFlat();
> m_ActorSagittal->SetPosition(0,0,0);
> m_RendererSagittal->AddActor( m_ActorSagittal );
> ...
>
> And this once:
> m_InteractorSagittal->SetInteractorStyle( m_InteractionStyleSagittal );
> m_WindowSagittal->SetInteractor( m_InteractorSagittal );
> m_WindowSagittal->AddRenderer( m_RendererSagittal );
>
> m_InteractorSagittal->Initialize();
> ui.qvtkWidgetSagittal->SetRenderWindow( m_WindowSagittal );
>
> And then render.
>
> Is there any possibility to superimpose the images??
>
> Thanks for your help!
>
> --
> Erik Tuerke
> Department of Neurophysics
> Max-Planck-Institute for Human Cognitive and Brain Sciences
> Stephanstrasse 1A
> 04103 Leipzig
> Germany
> Tel: +49 341 99 40-2440
> Email: tuerke at cbs.mpg.de
> www.cbs.mpg.de
>
>
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Thanks for your help.

But i found a solution setting up the position of the actors.

Greetings!

-- 
Erik Tuerke
Department of Neurophysics 
Max-Planck-Institute for Human Cognitive and Brain Sciences
Stephanstrasse 1A
04103 Leipzig
Germany 
Tel: +49 341 99 40-2440
Email: tuerke at cbs.mpg.de
www.cbs.mpg.de