[vtkusers] Tutorial Step1: NotImplementedError

[David Gobbi]

Hi Darya,

The concrete implementation for vtkPolyDataMapper is
vtkOpenGLPolyDataMapper.  The NotImplementedError probably means that the
vtkRenderingOpenGLPython.so module is not loading, because it is the module
that contains vtkOpenGLPolyDataMapper.

I cannot be sure why this module is not loading on your system, but you can
try loading it manually from python:

  >>> from vtkRenderingOpenGLPython import *
  >>> mapper = vtkOpenGLPolyDataMapper()
  >>> print mapper.GetClassName()
  >>>
  >>> from vtkRenderingCore import *
  >>> mapper2 = vtkPolyDataMapper()
  >>> print mapper2.GetClassName()

 - David

On Thu, Jul 30, 2015 at 3:58 AM, Darya Yelshyna <darya.yelshyna at gmail.com>
wrote:

> Hello everyone,
>
> I am sorry for inconvenience, but I can't execute the tutorial steps
> contained in the Examples folder. I pretend to use python for development
> of a 3D Slicer module. When I run the Cone.py, I get the following error:
>
> Generic Warning: In
> /home/darya/Documents/Slicer-SuperBuild/VTKv6/Rendering/Core/vtkPolyDataMapper.cxx,
> line 28
> Error: no override found for 'vtkPolyDataMapper'.
>
> Traceback (most recent call last):
>   File "/home/darya/Documents/LiClipse
> Workspace/VTKtutorials/src/Step1.py", line 14, in <module>
>     coneMapper = vtk.vtkPolyDataMapper()
> NotImplementedError: no concrete implementation exists for this class
> vtkDebugLeaks has detected LEAKS!
> Class "vtkPolyDataMapper" has 1 instance still around.
>
> I could not find a solution for this, the only information I found was
> concerning C++ programming.
> Thank you in advance.
>
> Sincerely,
> Darya Yelshyna
>
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