import itertools
import numpy as np
from bokeh.plotting import figure, show
TOOLS="crosshair,pan,wheel_zoom,box_zoom,reset,hover,save"
TOOLTIPS = [
("index", "$index"),
("(x,y)", "($x, $y)"),
("radius", "@radius"),
("fill color", "$color[hex, swatch]:colors"),
("foo", "@foo"),
("bar", "@bar"),
]
xx, yy = np.meshgrid(range(0,101,4), range(0,101,4))
x = xx.flatten()
y = yy.flatten()
N = len(x)
inds = [str(i) for i in np.arange(N)]
radii = np.random.random(size=N)*0.4 + 1.7
colors = [
"#%02x%02x%02x" % (int(r), int(g), 150) for r, g in zip(50+2*x, 30+2*y)
]
data=dict(
x=x,
y=y,
radius=radii,
colors=colors,
foo=list(itertools.permutations("abcdef"))[:N],
bar=np.random.normal(size=N),
)
p = figure(title="Hoverful Scatter", tools=TOOLS, tooltips=TOOLTIPS)
r = p.circle(x='x', y='y', radius='radius', source=data,
fill_color='colors', fill_alpha=0.6, line_color=None)
p.hover.renderers = [r] # hover only for circles
p.text(x, y, text=inds, alpha=0.5, text_font_size="7px",
text_baseline="middle", text_align="center")
show(p) # open a browser