[vtkusers] Coupling multiple cameras

Jonas Juselius jonas.juselius at uit.no
Mon Apr 2 10:24:24 EDT 2012


I tried that, but I ended up in the woods. The problem is that I need to
apply some (actor dependent) rotations to each actor. I use
vtkTransform::RotateX(), etc. But for some strange reason, this causes
the camera view/transformation to go bananas. The real problem it seems,
is that I must do a CameraReset() in order to get the camera nicely
centered on each actor. When I transform, the camera is not pointing
correctly at the actors anymore. Does anyone know how to solve this problem?

Jonas


On 02. april 2012 15:32, Jothybasu Selvaraj wrote:
> This does exactly what you need
> 
> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Utilities/ShareCamera
> 
> Jothy
> 
> On Mon, Apr 2, 2012 at 1:31 PM, Jonas Juselius <jonas.juselius at uit.no
> <mailto:jonas.juselius at uit.no>> wrote:
> 
>     Hi!
> 
>     I have the following problem: I have four actors, each with its own
>     renderer. The renderers are tiled onto the rendering window using
>     viewports, the cameras are reset for each renderer and the window is
>     given an interactor. So far so good; I can rotate each of the cameras
>     around each actor. Now I would like to couple the cameras, so that when
>     I interact/move one camera, the others move in unison, i.e. that I get
>     the same transformation for all four cameras/actors. How do I do this?
>     Is there a better solution than using multiple viewports and cameras?
> 
>     Best regards, Jonas
> 
>     --
>     Dr. Jonas Juselius <jonas.juselius at uit.no
>     <mailto:jonas.juselius at uit.no>>
>     High Performance Computing Group, University of Tromsø
>     Tel. +47 776 60400 <tel:%2B47%20776%2060400> Mobile. +47 47419869
>     <tel:%2B47%2047419869>
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> 
> 
> -- 
> Jothy
> 

-- 
Dr. Jonas Juselius <jonas.juselius at uit.no>
High Performance Computing Group, University of Tromsø
Tel. +47 776 60400 Mobile. +47 47419869



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