[vtkusers] InfoVis: geovis.py example problem?

[Jeff Baumes]

Yeah, there was a recent change to that function, and I didn't update
the python example. You are on the right track in fixing it, by
changing the input from a string to a vtkImageData. I will try to get
the fix in tomorrow.

Jeff

On Mon, Nov 17, 2008 at 4:42 PM, Eric E. Monson <emonson at cs.duke.edu> wrote:
> Hey,
>
> I was trying the Examples/Infovis/Python/geovis.py example (CVS today), and
> I couldn't get it to work, as is.
>
>  File "geoview.py", line 23, in <module>
>    view.AddDefaultImageRepresentation(data_dir + "NE2_ps_bath.jpg")
> ValueError: method requires a VTK object
>
> That methods seems to require a vtkImageData argument. Should this:
>
> # Create the background image
> view.AddDefaultImageRepresentation(data_dir + "NE2_ps_bath.jpg")
>
> be changed to something like this?:
>
> # Create the background image
> image = vtkImageData()
> jpg = vtkJPEGReader()
> jpg.SetFileName(data_dir + "NE2_ps_bath.jpg")
> jpg.Update()
> image.ShallowCopy(jpg.GetOutputDataObject(0))
> view.AddDefaultImageRepresentation(image)
>
> Or, maybe there's an easier way (I'm not sure about that ShallowCopy()
> part)?
>
> Thanks,
> -Eric
>
>
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-- 
Jeff Baumes, Ph.D.
R&D Engineer, Kitware Inc.
(518) 371-3971 x132
jeff.baumes at kitware.com