GetScalarRange will re-compute the scalar range only if the image has been modified. It has time stamps internally to avoid re-computing the scalar range during every call to GetScalarRange(). <br><br>The method SetScalarComponentFromDouble does not change the MTime of the image for efficiency.<br>
<br>Invoke Modified() on the image and then invoke GetScalarRange() and you should see it update.<br><br><br>--<br>karthik<br><br><br><br><div class="gmail_quote">On Sun, Dec 26, 2010 at 11:19 PM, Sebastien Jourdain <span dir="ltr"><<a href="mailto:sebastien.jourdain@kitware.com">sebastien.jourdain@kitware.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I have no idea on the expected behavior... And I'm not much familiar<br>
with imageData...<br>
<br>
Sorry,<br>
<br>
Seb<br>
<div><div></div><div class="h5"><br>
On Sun, Dec 26, 2010 at 6:27 PM, Jonathan Morra <<a href="mailto:jonmorra@gmail.com">jonmorra@gmail.com</a>> wrote:<br>
> This would appear to work, but after<br>
> calling .SetScalarComponentFromDouble(x, y, z, 0, 1) the<br>
> image.GetScalarRange() still returns [0, 0] which, I would assume, it<br>
> shouldn't. Am I doing something wrong?<br>
><br>
> On Sun, Dec 26, 2010 at 8:47 AM, Sebastien Jourdain<br>
> <<a href="mailto:sebastien.jourdain@kitware.com">sebastien.jourdain@kitware.com</a>> wrote:<br>
>><br>
>> If you have a scalar range on the data array and if the min/max are<br>
>> equal to 0, you are done...<br>
>><br>
>> Seb<br>
>><br>
>> On Mon, Dec 20, 2010 at 6:15 PM, Jonathan Morra <<a href="mailto:jonmorra@gmail.com">jonmorra@gmail.com</a>><br>
>> wrote:<br>
>> > Is there a way to quickly tell if a vtkImageData is blank (contains all<br>
>> > 0's)? I can't iterate the pixels cause I'm in Java and that's too slow.<br>
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