Small improvements to hv.ImageStack

[hoxbro]

• Adding simple HoverTool support if Bokeh 3.3 is installed
• Allow more inputs type to ImageStack:

import numpy as np
import panel as pn

import holoviews as hv

hv.extension("bokeh")

data = np.asarray(
    [
        [[0, 1, 2], [1, 1, 2], [0, 1, 2]],
        [[1, 0, 1], [2, 2, 2], [3, 3, 3]],
        [[0, 1, 4], [7, 1, 3], [3, 5, 1]],
    ]
)
# And:
# data = (range(5, 8), range(10, 13), data) 

colors = ["red", "blue", "green"]
hv.ImageStack(data).opts(
    width=800, height=800, cmap=colors, num_colors=100, tools=["hover"]
)

[codecov-commenter]

Codecov Report

Merging #5945 (c7b3a9c) into main (0292fce) will increase coverage by 0.00%.
The diff coverage is 95.74%.

@@           Coverage Diff           @@
##             main    #5945   +/-   ##
=======================================
  Coverage   88.57%   88.58%           
=======================================
  Files         315      315           
  Lines       65460    65504   +44     
=======================================
+ Hits        57984    58026   +42     
- Misses       7476     7478    +2     

Flag	Coverage Δ
ui-tests	23.15% <6.38%> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
holoviews/element/raster.py	80.00% <100.00%> (+0.27%)	⬆️
holoviews/tests/plotting/bokeh/test_rasterplot.py	98.70% <100.00%> (+0.16%)	⬆️
holoviews/plotting/bokeh/raster.py	84.58% <71.42%> (-0.51%)	⬇️

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[github-actions]

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