itk backend RuntimeError: Could not process the viewer data

[qsh-zh]

Follow the https://github.com/enthought/mayavi/blob/master/examples/mayavi/mayavi_jupyter.ipynb

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RuntimeError                              Traceback (most recent call last)
File ~/.local/lib/python3.8/site-packages/IPython/core/formatters.py:920, in IPythonDisplayFormatter.__call__(self, obj)
    918 method = get_real_method(obj, self.print_method)
    919 if method is not None:
--> 920     method()
    921     return True

File ~/anaconda3/envs/WaveletGeneration/lib/python3.8/site-packages/mayavi/tools/notebook.py:31, in _ipython_display_(self)
     22 def _ipython_display_(self):
     23     '''Method attached to Mayavi objects.
     24 
     25     Note that here `self` is the Mayavi object that is going to be
   (...)
     29 
     30     '''
---> 31     return _backend.display(self)

File ~/anaconda3/envs/WaveletGeneration/lib/python3.8/site-packages/mayavi/tools/notebook.py:145, in ITKBackend.display(self, obj)
    137     # Works around bug in released itkwidgets-0.32.1.
    138     # Can remove when this PR is merged and in a release:
    139     # https://github.com/InsightSoftwareConsortium/itkwidgets/pull/438
    140     kw = dict(
    141         actors=actors, geometries=[], geometry_colors=[],
    142         geometry_opacities=[], point_sets=[], point_set_colors=[],
    143         point_set_opacities=[]
    144     )
--> 145     return idisplay(self._view(**kw))
    146 else:
    147     return obj

File ~/anaconda3/envs/WaveletGeneration/lib/python3.8/site-packages/itkwidgets/viewer.py:436, in view(data, **kwargs)
    322 def view(data=None, **kwargs):
    323     """View the image and/or point sets.
    324 
    325     Creates and returns an ImJoy plugin ipywidget to visualize an image, and/or
   (...)
    434         properties on the object to change the visualization.
    435     """
--> 436     viewer = Viewer(data=data, **kwargs)
    438     return viewer

File ~/anaconda3/envs/WaveletGeneration/lib/python3.8/site-packages/itkwidgets/viewer.py:136, in Viewer.__init__(self, ui_collapsed, rotate, ui, **add_data_kwargs)
    132 def __init__(
    133     self, ui_collapsed=True, rotate=False, ui="pydata-sphinx", **add_data_kwargs
    134 ):
    135     input_data = self.input_data(add_data_kwargs)
--> 136     data = self.init_data(input_data)
    137     """Create a viewer."""
    138     self.viewer_rpc = ViewerRPC(
    139         ui_collapsed=ui_collapsed, rotate=rotate, ui=ui, data=data
    140     )

File ~/anaconda3/envs/WaveletGeneration/lib/python3.8/site-packages/itkwidgets/viewer.py:179, in Viewer.init_data(self, input_data)
    177         result = _get_viewer_point_sets(data)
    178     if result is None:
--> 179         raise RuntimeError(f"Could not process the viewer {input_type}")
    180     _init_data[key] = result
    181 return _init_data

RuntimeError: Could not process the viewer data

<mayavi.modules.iso_surface.IsoSurface at 0x7f75beffc450>

[davide-q]

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