[vtk-developers] Turn off the visibility of a vtkImageSlice in a vtkImageStack

[David Gobbi]

On Fri, Apr 27, 2012 at 6:45 AM, David Doria <daviddoria at gmail.com> wrote:
>
> On Wed, Apr 25, 2012 at 9:36 AM, David Doria <daviddoria at gmail.com> wrote:
> > Is there a way to temporarily turn off a slice in a stack? The
> > slice->VisibilityOff() function for a slice in a stack does not seem
> > to work. See a full example here:
> >
> > http://codepad.org/1a6rlQdJ
> >
> > Even with the imageSlice2->VisibilityOff() call, both slices are still visible.
> >
> > Any ideas?
> >
> > David
>
> Is this intended behavior? Or should I look into a patch? Perhaps in
> these functions:
>
> RenderOpaqueGeometry and RenderTranslucentPolygonalGeometry
>
> in this loop:
>
> while ( (image = this->Images->GetNextImage(pit)) != 0)
>
> there could just be a conditional that checks the slice's visibility
> property before proceeding?


Yes, there should probably be a conditional.  Sorry that I haven't had
time to look into this yet.

 - David