[vtkusers] vtkPicker returned actor

[David Gobbi]

On Mon, Feb 29, 2016 at 7:59 AM, Lonni Besançon <lonni.besancon at gmail.com>
wrote:

> Alright changed it but I get similar values.
>

Check to make sure it is really picking the texture:  picker->GetDataSet()
should be returning a vtkImageData (it should return the input to the
texture).  Also, call picker->GetPointIJK() to see if it returns sensible
values.

 - David
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