[vtkusers] question on vtkImageData orientation support

[John Drescher]

On Thu, Nov 4, 2010 at 10:18 PM, Xiaofeng Z <xf10036 at hotmail.com> wrote:
> It seems that I can use negative values in pixel spacings to have the image
> correctly displayed.  Is this a (undocumented) feature, or could it be a
> time bomb that's ticking.
>

When I tried to use that hack 2 years ago I was told not to do that
because this was an undocumented feature that could go away at any
time.

John