[vtkusers] vtkImageMapToColors vtkWindowLevelLookupTable

[David Gobbi]

Hi Shark,

Glad that you sorted it out.  Your fix looks sensible, given the way that
the bug works. Essentially, the "under" and "over" colors to left as
(0,0,0,0) in certain circumstances, instead of being set to the "min" and
"max" colors.  Directly calling SetTableValue() is a work-around.

Cheers,
 - David

On Wed, Mar 1, 2017 at 6:39 AM, Shark <m.nunes at fratoria.com> wrote:

> David, your tip was useful to come up with a fix.
>
> Apparently got it working by adding SetTableValue in:
>
> Lookup->SetMinimumTableValue(0, 0, 0, 1);
> Lookup->SetMaximumTableValue(1, 1, 1, 1);
> Lookup->SetTableValue(0, 0, 0, 0, 1);
> Lookup->SetTableValue(1, 1, 1, 1, 1);
> Lookup->Build();
>
> Let me know if there is a more logical/correct fix.
>
> Thank you again,
> Shark
>
>
>
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