[vtkusers] Re: turning auto scaling off in vtk

[Anja Ende]

Hi everyone,

It seems to be the ResetCamera() function that rescales the image.

I tried calling the ResetCamera() with the bounds of my image but it did not
seem to do much. It still rescales by image but puts it on the lower rows of
the screen instead of the center.

My rescaled image size is 2045, 2045... so, I cann ResetCamera like

this->Renderer->ResetCamera(0, 2044, 0, 2044, 0, 0);

If anyone has more insight into this, please help!

Thanks,
Anna

On 16/08/06, Anja Ende <anja.ende at googlemail.com> wrote:
>
> Hi everyone,
>
> Another interesting observation:
>
> The scaling does not happen when I use vtkImageViewer instead of
> vtkImageViewer2... so it must be something in the image viewer 2 component,
> but I am yet to figure it out!
>
>
> On 16/08/06, Anja Ende <anja.ende at googlemail.com> wrote:
> >
> > Hi everyone,
> >
> > I am using vtkImageViewer2 component to show a display image that I host
> > in a QT Window.
> >
> > I have scaled the image through vtkImageReslice and vtkTransform.
> > However, when the image is displayed, the vtkImageViewer2 scales it again to
> > fit the window size. Somewhere along the line, VTK is telling its renderers
> > or the render windows to rescale their displays.
> >
> > I am browsing through the code but have not found anything like that
> > yet. My first instinct was to look in the vtkRenderInteractor and
> > vtkRenderInteractorStyle but unless I have missed something, they seem to be
> > ok.
> >
> > Also, vtkRenderWindow does not seem to rescale unless the SetSize method
> > is being called by some other object to reduce the size again...
> >
> > If anyone ahs any idea on how to turn the auto scaling off completely, I
> > would be very grateful.
> >
> > Thanks again everyone,
> >
> > Anna
> >
>
>
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