[vtkusers] Problem with vtkLegendActor with VTK 6 Python Wrappings

[Bill Lorensen]

Josh,

Looks like a bug to me. I see the same error with this C++ example:
http://vtk.org/Wiki/VTK/Examples/Cxx/Visualization/Legend

I'll take a look.

Bill


On Sun, Aug 11, 2013 at 5:00 AM, Gelman, Joshua <jgelman at decisionvis.com>wrote:

> Before I report this as a bug, I was just curious if anyone else could
> confirm this or had any other insight.  I'm still not sure if this is a bug
> or a problem on my end.  Basically, when I try to use vtkLegendActor in
> Python, I get the following error:
>
> ERROR: In ..\..\..\VTKSrc\Filters\General\vtkTransformPolyDataFilter.cxx, line 84 vtkTransformPolyDataFilter (09ED64F8): No input data
>
> It doesn't crash my program, but the error shows up in the console as many
> number of times as self.legend.SetNumberOfEntries(n) is set.  This same
> error does NOT occur with my build of VTK 5.10.1.
>
> Below is a sample program I threw together that generates the error on my
> end.  Any insight would be greatly appreciated.
>
> Many thanks,
>
> --Josh
>
> #################################
> import vtk
>
> square = vtk.vtkCubeSource()
> mapper = vtk.vtkPolyDataMapper()
> mapper.SetInputData(square.GetOutput())
>
> legendBox = vtk.vtkLegendBoxActor()
> legendBox.SetNumberOfEntries(1)
>
> legendBox.SetEntry(0, square.GetOutput(), "Test", [1,1,0])
>
> ren = vtk.vtkRenderer()
> renWin = vtk.vtkRenderWindow()
> renWin.AddRenderer(ren)
> ren.AddActor(legendBox)
>
> iren = vtk.vtkRenderWindowInteractor()
> iren.SetRenderWindow(renWin);
>
> renWin.Render()
> iren.Start()
>
> #################################
>
>
>
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-- 
Unpaid intern in BillsBasement at noware dot com
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