[vtkusers] Visualize a volume slice on a 3D plane (the acquisition plane of the images)

[Eva Monclús]

Thanks a lot for the quickly answer, but my problem is that I want to 
use the output of the vtkImageActor in a different graphic object 
(another 3D plane) and I do not know how to manage it.

In very, very technical words, I want to get access to the unsigned char 
* that it is being rendering using the vtkImageActor.

Thanks in advance,

     Eva



On 27/06/2018 15:22, Sankhesh Jhaveri wrote:
>
> Hi Eva,
>
> |vtkImageActor| is a 2D textured plane in a 3D space. Make sure that 
> you use the |vtkImageMapper3D| (default mapper) with it.
> If you’re just looking for 3D interaction with the actor, use an 
> interactor style like |vtkInteractorStyleTrackballCamera|.
>
> Hope that helps.
>
> Thanks,
> Sankhesh
>
> ​
>
> On Wed, Jun 27, 2018 at 9:17 AM Eva Monclús <emonclus at cs.upc.edu 
> <mailto:emonclus at cs.upc.edu>> wrote:
>
>     Hello everyone,
>
>     I'm working with a volume dataset (temporal Dicom serie) and I´m
>     able to visualize the  slices using the following vtk C++ classes:
>
>       * vtkImageData: represents the volume dataset
>       * vtkImageMapToColors: I use this class to define the transfer
>         function to be used in the rendering
>       * vtkImageActor: I use this class to render a specific slice of
>         the volume dataset
>
>     Until here everything it is fine. I can render the slice I want
>     using the classes before mentioned changing the SetDisplayExtent
>     of the vtkImageActor.
>
>     Now I want to visualize the output of my vtkImageActor as a 2D
>     texture in a free 3D plane.  Then, I consider to have the
>     following classes:
>
>       *  I use a vtkPlaneSource to define the  3D plane: orientation
>         and position
>       * a vtkTexture that has to be attached to the vtkPlaneSource. My
>         problem comes out with the definition of the
>         SetInputConnection of the vtkTexture. I want to define the 
>         image as the output of the vtkImageActor. But  I do not get it.
>
>     I am successful in visualizing the vtkPlane in black  color (due
>     to the texture is not well defined) unfortunately, I can't get it
>     to work properly  with a texture of a specific slice of the volume
>     dataset. I have tried different ways of assigning the
>     SetInputConnection of the vtkTexture using the vtkImageActor, but
>     none of them worked well.
>
>     Any help will be welcome.  Thank you very much in advance,
>
>        Eva
>
>
>
>     _______________________________________________
>     Powered by www.kitware.com <http://www.kitware.com>
>
>     Visit other Kitware open-source projects at
>     http://www.kitware.com/opensource/opensource.html
>
>     Please keep messages on-topic and check the VTK FAQ at:
>     http://www.vtk.org/Wiki/VTK_FAQ
>
>     Search the list archives at: http://markmail.org/search/?q=vtkusers
>
>     Follow this link to subscribe/unsubscribe:
>     https://public.kitware.com/mailman/listinfo/vtkusers
>
> -- 
>
>
>           Sankhesh Jhaveri
>
>
>             /Sr. Research & Development Engineer/ | Kitware
>             <http://www.kitware.com/> | (518) 881-4417
>
> ​

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://public.kitware.com/pipermail/vtkusers/attachments/20180627/5fcae5de/attachment.html>