Jupyter BE Viz Visualization is broken

[ramav87]

Jupyter Visualizer does not work for many datasets, often giving errors, e.g.

fig = belib.viz.be_viz_utils.jupyter_visualize_be_spectrograms(h5_main)

No position datasets found as attributes of /Measurement_000/Channel_000/Spectroscopic_Values

> ---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
<ipython-input-27-990bcd15c372> in <module>
----> 1 fig = belib.viz.be_viz_utils.jupyter_visualize_be_spectrograms(h5_main)

~/PycharmProjects/BGlib/BGlib/be/viz/be_viz_utils.py in jupyter_visualize_be_spectrograms(pc_main, cmap)
    522         y_size = pos_dims[-2]
    523 
--> 524         spatial_map = np.abs(np.reshape(pc_main[spatial_slice, 0], (y_size, x_size)))
    525         spectrogram = np.reshape(pc_main[0], (num_udvs_steps, -1))
    526         fig, axes = plt.subplots(ncols=3, figsize=(12, 4), subplot_kw={'adjustable': 'box'})

h5py/_objects.pyx in h5py._objects.with_phil.wrapper()

h5py/_objects.pyx in h5py._objects.with_phil.wrapper()

//anaconda3/lib/python3.7/site-packages/h5py/_hl/dataset.py in __getitem__(self, args, new_dtype)
    775 
    776         # Perform the dataspace selection.
--> 777         selection = sel.select(self.shape, args, dataset=self)
    778 
    779         if selection.nselect == 0:

//anaconda3/lib/python3.7/site-packages/h5py/_hl/selections.py in select(shape, args, dataset)
     80         selector = _selector.Selector(space)
     81 
---> 82     return selector.make_selection(args)
     83 
     84 

h5py/_selector.pyx in h5py._selector.Selector.make_selection()

h5py/_selector.pyx in h5py._selector.Selector.apply_args()

TypeError: Only 1D arrays allowed for fancy indexing