[vtkusers] test if vtkImageData is blank

[Sebastien Jourdain]

I have no idea on the expected behavior... And I'm not much familiar
with imageData...

Sorry,

Seb

On Sun, Dec 26, 2010 at 6:27 PM, Jonathan Morra <jonmorra at gmail.com> wrote:
> This would appear to work, but after
> calling .SetScalarComponentFromDouble(x, y, z, 0, 1) the
> image.GetScalarRange() still returns [0, 0] which, I would assume, it
> shouldn't.  Am I doing something wrong?
>
> On Sun, Dec 26, 2010 at 8:47 AM, Sebastien Jourdain
> <sebastien.jourdain at kitware.com> wrote:
>>
>> If you have a scalar range on the data array and if the min/max are
>> equal to 0, you are done...
>>
>> Seb
>>
>> On Mon, Dec 20, 2010 at 6:15 PM, Jonathan Morra <jonmorra at gmail.com>
>> wrote:
>> > Is there a way to quickly tell if a vtkImageData is blank (contains all
>> > 0's)?  I can't iterate the pixels cause I'm in Java and that's too slow.
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