Support responsive=True, data_aspect=True, and datashader operations

[hoxbro]

Is your feature request related to a problem? Please describe.

I will like to be able to use responsive=True, data_aspect=True, and datashader operations. Right now, this raises a TypeError. See the example below.

This could be seen as a bug, but I will mark it as a feature request.

Additional context

Code

import xarray as xr
import numpy as np
import holoviews as hv
from holoviews.operation.datashader import rasterize

hv.extension("bokeh")

da = xr.DataArray(
    np.arange(10000).reshape(100, 100),
    coords=dict(
        x=np.linspace(0, 3000, 100), y=np.linspace(0, 3000, 100)
    ),
)

image = hv.Image(da).opts(responsive=True, data_aspect=True)
image

rasterize(image)

Traceback

---------------------------------------------------------------------------
TypeError                                 Traceback (most recent call last)
File ~/miniconda3/envs/holoviz/lib/python3.9/site-packages/IPython/core/formatters.py:973, in MimeBundleFormatter.__call__(self, obj, include, exclude)
    970     method = get_real_method(obj, self.print_method)
    972     if method is not None:
--> 973         return method(include=include, exclude=exclude)
    974     return None
    975 else:

File ~/Development/holoviz/repos/holoviews/holoviews/core/dimension.py:1294, in Dimensioned._repr_mimebundle_(self, include, exclude)
   1287 def _repr_mimebundle_(self, include=None, exclude=None):
   1288     """
   1289     Resolves the class hierarchy for the class rendering the
   1290     object using any display hooks registered on Store.display
   1291     hooks.  The output of all registered display_hooks is then
   1292     combined and returned.
   1293     """
-> 1294     return Store.render(self)

File ~/Development/holoviz/repos/holoviews/holoviews/core/options.py:1418, in Store.render(cls, obj)
   1416 data, metadata = {}, {}
   1417 for hook in hooks:
-> 1418     ret = hook(obj)
   1419     if ret is None:
   1420         continue

File ~/Development/holoviz/repos/holoviews/holoviews/ipython/display_hooks.py:277, in pprint_display(obj)
    275 if not ip.display_formatter.formatters['text/plain'].pprint:
    276     return None
--> 277 return display(obj, raw_output=True)

File ~/Development/holoviz/repos/holoviews/holoviews/ipython/display_hooks.py:253, in display(obj, raw_output, **kwargs)
    251 elif isinstance(obj, (HoloMap, DynamicMap)):
    252     with option_state(obj):
--> 253         output = map_display(obj)
    254 elif isinstance(obj, Plot):
    255     output = render(obj)

File ~/Development/holoviz/repos/holoviews/holoviews/ipython/display_hooks.py:141, in display_hook.<locals>.wrapped(element)
    139 try:
    140     max_frames = OutputSettings.options['max_frames']
--> 141     mimebundle = fn(element, max_frames=max_frames)
    142     if mimebundle is None:
    143         return {}, {}

File ~/Development/holoviz/repos/holoviews/holoviews/ipython/display_hooks.py:201, in map_display(vmap, max_frames)
    198     max_frame_warning(max_frames)
    199     return None
--> 201 return render(vmap)

File ~/Development/holoviz/repos/holoviews/holoviews/ipython/display_hooks.py:68, in render(obj, **kwargs)
     65 if renderer.fig == 'pdf':
     66     renderer = renderer.instance(fig='png')
---> 68 return renderer.components(obj, **kwargs)

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/renderer.py:398, in Renderer.components(self, obj, fmt, comm, **kwargs)
    395 embed = (not (dynamic or streams or self.widget_mode == 'live') or config.embed)
    397 if embed or config.comms == 'default':
--> 398     return self._render_panel(plot, embed, comm)
    399 return self._render_ipywidget(plot)

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/renderer.py:405, in Renderer._render_panel(self, plot, embed, comm)
    403 doc = Document()
    404 with config.set(embed=embed):
--> 405     model = plot.layout._render_model(doc, comm)
    406 if embed:
    407     return render_model(model, comm)

File ~/Development/holoviz/repos/panel/panel/viewable.py:507, in Renderable._render_model(self, doc, comm)
    505 if comm is None:
    506     comm = state._comm_manager.get_server_comm()
--> 507 model = self.get_root(doc, comm)
    509 if config.embed:
    510     embed_state(self, model, doc,
    511                 json=config.embed_json,
    512                 json_prefix=config.embed_json_prefix,
    513                 save_path=config.embed_save_path,
    514                 load_path=config.embed_load_path,
    515                 progress=False)

File ~/Development/holoviz/repos/panel/panel/viewable.py:558, in Renderable.get_root(self, doc, comm, preprocess)
    541 """
    542 Returns the root model and applies pre-processing hooks
    543 
   (...)
    555 Returns the bokeh model corresponding to this panel object
    556 """
    557 doc = init_doc(doc)
--> 558 root = self._get_model(doc, comm=comm)
    559 if preprocess:
    560     self._preprocess(root)

File ~/Development/holoviz/repos/panel/panel/layout/base.py:146, in Panel._get_model(self, doc, root, parent, comm)
    144 if root is None:
    145     root = model
--> 146 objects = self._get_objects(model, [], doc, root, comm)
    147 props = dict(self._init_params(), objects=objects)
    148 model.update(**self._process_param_change(props))

File ~/Development/holoviz/repos/panel/panel/layout/base.py:131, in Panel._get_objects(self, model, old_objects, doc, root, comm)
    129 else:
    130     try:
--> 131         child = pane._get_model(doc, root, model, comm)
    132     except RerenderError:
    133         return self._get_objects(model, current_objects[:i], doc, root, comm)

File ~/Development/holoviz/repos/panel/panel/pane/holoviews.py:265, in HoloViews._get_model(self, doc, root, parent, comm)
    263     plot = self.object
    264 else:
--> 265     plot = self._render(doc, comm, root)
    267 plot.pane = self
    268 backend = plot.renderer.backend

File ~/Development/holoviz/repos/panel/panel/pane/holoviews.py:342, in HoloViews._render(self, doc, comm, root)
    339     if comm:
    340         kwargs['comm'] = comm
--> 342 return renderer.get_plot(self.object, **kwargs)

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/bokeh/renderer.py:70, in BokehRenderer.get_plot(self_or_cls, obj, doc, renderer, **kwargs)
     63 @bothmethod
     64 def get_plot(self_or_cls, obj, doc=None, renderer=None, **kwargs):
     65     """
     66     Given a HoloViews Viewable return a corresponding plot instance.
     67     Allows supplying a document attach the plot to, useful when
     68     combining the bokeh model with another plot.
     69     """
---> 70     plot = super().get_plot(obj, doc, renderer, **kwargs)
     71     if plot.document is None:
     72         plot.document = Document() if self_or_cls.notebook_context else curdoc()

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/renderer.py:254, in Renderer.get_plot(self_or_cls, obj, doc, renderer, comm, **kwargs)
    252     p._trigger = []
    253 for trigger in triggers:
--> 254     Stream.trigger([trigger])
    256 if isinstance(self_or_cls, Renderer):
    257     self_or_cls.last_plot = plot

File ~/Development/holoviz/repos/holoviews/holoviews/streams.py:184, in Stream.trigger(cls, streams)
    182 with triggering_streams(streams):
    183     for subscriber in subscribers:
--> 184         subscriber(**dict(union))
    186 for stream in streams:
    187     with util.disable_constant(stream):

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/plot.py:243, in Plot.refresh(self, **kwargs)
    241         self.push()
    242 except Exception as e:
--> 243     raise e
    244 finally:
    245     # Reset triggering state
    246     for s in self._triggering:

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/plot.py:239, in Plot.refresh(self, **kwargs)
    234 key = tuple(None if d in stream_params else k
    235             for d, k in zip(self.dimensions, key))
    236 stream_key = util.wrap_tuple_streams(key, self.dimensions, self.streams)
--> 239 self._trigger_refresh(stream_key)
    240 if self.top_level:
    241     self.push()

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/plot.py:256, in Plot._trigger_refresh(self, key)
    254 if not self.top_level or isinstance(self, GenericElementPlot):
    255     with unlocked():
--> 256         self.update(key)

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/plot.py:949, in DimensionedPlot.update(self, key)
    947 if len(self) == 1 and ((key == 0) or (key == self.keys[0])) and not self.drawn:
    948     return self.initialize_plot()
--> 949 item = self.__getitem__(key)
    950 self.traverse(lambda x: setattr(x, '_updated', True))
    951 return item

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/plot.py:435, in DimensionedPlot.__getitem__(self, frame)
    433 if not isinstance(frame, tuple):
    434     frame = self.keys[frame]
--> 435 self.update_frame(frame)
    436 return self.state

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/bokeh/element.py:1520, in ElementPlot.update_frame(self, key, ranges, plot, element)
   1518 plot = self.handles['plot']
   1519 if not self.overlaid:
-> 1520     self._update_ranges(style_element, ranges)
   1521     self._update_plot(key, plot, style_element)
   1522     self._set_active_tools(plot)

File ~/Development/holoviz/repos/holoviews/holoviews/plotting/bokeh/element.py:835, in ElementPlot._update_ranges(self, element, ranges)
    833     frame_aspect = self.aspect
    834 else:
--> 835     frame_aspect = plot.frame_height/plot.frame_width
    837 if self.drawn:
    838     current_l, current_r = plot.x_range.start, plot.x_range.end

TypeError: unsupported operand type(s) for /: 'NoneType' and 'NoneType'