[vtkusers] Multiple renderes and interactor callback

[David Gobbi]

Hi Ali,

Usually ResetCamera() is only called on the first render,
it should not be called every time the user clicks the mouse.

 - David

On Wed, Aug 27, 2014 at 12:32 AM, sfaisalali91 <sfaisal.ali91 at gmail.com> wrote:
> Hello David, Thanks for your reply.
>
> As you suggested i tried assigning separate cameras for the MPR and Volume
> view (One camera for the MPR slicing and another for Volume rendering). I
> succeeded in resetting the volume view but when i try rendering it, the
> volume renders outside the viewport. So i made use of getbounds()
> functionality and tried assigning the camera and related parameters (as you
> suggested) inside the respective Volume viewport bounds. Sadly i was not
> able to achieve the desired. As my viewer is based on MFC, it either crashes
> or hangs.
> Am i missing anything here?
>
> And as i am trying all the possible alternatives, lately i was working on
> the mouse events and i was trying to get a solution for it. I am making use
> of MouseMoveEvent in my call back and accordingly setting the camera of the
> Volumetric viewport, so based on  this i tried implementing Rotate()
> functionality
>
> if ( pokedRenderer == ImageRenderer)
>          {
>                 ImageIren->Rotate();
>                 iren->Render();
>
>          }
>
> The volume and MPR slices render simultaneously as expected. But when i try
> the same with LeftButtonPressEvent (as shown in the snippet below) it fails
> and there is no interaction with the volume. please can you guide me. Thank
> you.
>
> if ( pokedRenderer == ImageRenderer)
>          {
>                  if (event == vtkCommand::LeftButtonPressEvent)
>                  {
>                                         iren->SetInteractorStyle(ImageIren);
>                                         ImageRenderer->ResetCamera();
>                                         ImageIren->Rotate();
>                                         iren->Render();
>                  }
>
>          }
>
>
>
>
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