Sparse data does not work with GridSpace in Bokeh

[wjaskowski]

def sine_curve(phase, freq):
    xvals = [0.1* i for i in range(100)]
    return hv.Curve((xvals, [np.sin(phase+freq*x) for x in xvals]))

phases      = [0, np.pi/2, np.pi, 3*np.pi/2]
frequencies = [0.5, 0.75, 1.0, 1.25]
curve_dict_2D = {(p,f):sine_curve(p,f) for p in phases for f in frequencies if not (f == 0.75 and p == 0)}
gridspace = hv.GridSpace(curve_dict_2D, kdims=['phase', 'frequency'])
gridspace

produces (only for Bokeh)

---------------------------------------------------------------------------
UnboundLocalError                         Traceback (most recent call last)
~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/IPython/core/formatters.py in __call__(self, obj)
    330                 pass
    331             else:
--> 332                 return printer(obj)
    333             # Finally look for special method names
    334             method = get_real_method(obj, self.print_method)

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/ipython/display_hooks.py in pprint_display(obj)
    257     if not ip.display_formatter.formatters['text/plain'].pprint:
    258         return None
--> 259     return display(obj, raw=True)
    260 
    261 

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/ipython/display_hooks.py in display(obj, raw, **kwargs)
    234     if isinstance(obj, GridSpace):
    235         with option_state(obj):
--> 236             html = grid_display(obj)
    237     elif isinstance(obj, (CompositeOverlay, ViewableElement)):
    238         with option_state(obj):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/ipython/display_hooks.py in wrapped(element)
    129         try:
    130             html = fn(element,
--> 131                       max_frames=OutputSettings.options['max_frames'])
    132 
    133             # Only want to add to the archive for one display hook...

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/ipython/display_hooks.py in grid_display(grid, max_frames)
    223         return None
    224 
--> 225     return render(grid)
    226 
    227 

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/ipython/display_hooks.py in render(obj, **kwargs)
     59     if renderer.fig == 'pdf':
     60         renderer = renderer.instance(fig='png')
---> 61     return renderer.html(obj, **kwargs)
     62 
     63 

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/renderer.py in html(self, obj, fmt, css, comm, **kwargs)
    253         code to initialize a Comm, if the plot supplies one.
    254         """
--> 255         plot, fmt =  self._validate(obj, fmt)
    256         figdata, _ = self(plot, fmt, **kwargs)
    257         if css is None: css = self.css

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/renderer.py in _validate(self, obj, fmt)
    189         if isinstance(obj, tuple(self.widgets.values())):
    190             return obj, 'html'
--> 191         plot = self.get_plot(obj, renderer=self)
    192 
    193         fig_formats = self.mode_formats['fig'][self.mode]

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/renderer.py in get_plot(self_or_cls, obj, doc, renderer)
    110         combining the bokeh model with another plot.
    111         """
--> 112         plot = super(BokehRenderer, self_or_cls).get_plot(obj, renderer)
    113         if doc is not None:
    114             plot.document = doc

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/renderer.py in get_plot(self_or_cls, obj, renderer)
    176             plot = self_or_cls.plotting_class(obj)(obj, renderer=renderer,
    177                                                    **plot_opts)
--> 178             plot.update(0)
    179         else:
    180             plot = obj

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/plot.py in update(self, key)
    483     def update(self, key):
    484         if len(self) == 1 and key == 0 and not self.drawn:
--> 485             return self.initialize_plot()
    486         item = self.__getitem__(key)
    487         self.traverse(lambda x: setattr(x, '_updated', True))

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/plot.py in initialize_plot(self, ranges, plots)
    396             plot = gridplot(plots[::-1])
    397 
--> 398         plot = self._make_axes(plot)
    399 
    400         title = self._get_title(self.keys[-1])

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/plot.py in _make_axes(self, plot)
    414 
    415     def _make_axes(self, plot):
--> 416         width, height = self.renderer.get_size(plot)
    417         x_axis, y_axis = None, None
    418         if self.xaxis:

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/renderer.py in get_size(self_or_cls, plot)
    273             raise ValueError('Can only compute sizes for HoloViews '
    274                              'and bokeh plot objects.')
--> 275         return compute_plot_size(plot)
    276 
    277 

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in compute_plot_size(plot)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in <listcomp>(.0)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in compute_plot_size(plot)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in <listcomp>(.0)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in compute_plot_size(plot)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in <listcomp>(.0)
    169         else:
    170             w_agg, h_agg = (np.max, np.sum)
--> 171         widths, heights = zip(*[compute_plot_size(child) for child in plot.children])
    172         width, height = w_agg(widths), h_agg(heights)
    173     elif isinstance(plot, (Figure, Chart)):

~/miniconda3/envs/rlzoo/lib/python3.6/site-packages/holoviews/plotting/bokeh/util.py in compute_plot_size(plot)
    175     elif isinstance(plot, (Plot, DataTable)):
    176         width, height = plot.width, plot.height
--> 177     return width, height
    178 
    179 

UnboundLocalError: local variable 'width' referenced before assignment

[philippjfr]

Should be fixed now, please reopen if you encounter new issues.

[github-actions]

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