[vtkusers] Zooming the vtkImageViewer

[Matt Clarkson]

You do this by connecting the volume
to a vtkImageReslice filter, and extracting
a 2D slice and connecting this to the viewer.
You set the vtkImageReslice filter
to extract a 2D image, ie. Set the extent to
0 255 0 255 0 0

The vtkImageReslice can then be adjusted to give
different fields of view. Effectively you are resampling
a 2D image each time rather than a 3D volume

I didnt know that the image viewer had a camera
as such.

Anyway, hope this helps

Matt


Erik Sobel wrote:
> 
> Does anyone know how to zoom an image in a vtkImageViewer (without
> resampling the volume - since this messes up other parts of my
> pipeline)?   Is it possible to just grab the camera used by the
> vtkImageViewer and zoom it?
> 
> Thanks,
> Erik
> 
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-- 
Computational Imaging Science Group                
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