les_mis.py¶
A reproduction of Mike Bostock’s Les Misérables Co-occurrence chart. This example example demonostrates a basic hover tooltip.
Details
- Sampledata
- Bokeh APIs
- More info
- Keywords
hover, rect, tooltip
import numpy as np
from bokeh.plotting import figure, show
from bokeh.sampledata.les_mis import data
nodes = data['nodes']
names = [node['name'] for node in sorted(data['nodes'], key=lambda x: x['group'])]
N = len(nodes)
counts = np.zeros((N, N))
for link in data['links']:
counts[link['source'], link['target']] = link['value']
counts[link['target'], link['source']] = link['value']
colormap = ["#444444", "#a6cee3", "#1f78b4", "#b2df8a", "#33a02c", "#fb9a99",
"#e31a1c", "#fdbf6f", "#ff7f00", "#cab2d6", "#6a3d9a"]
xname = []
yname = []
color = []
alpha = []
for i, node1 in enumerate(nodes):
for j, node2 in enumerate(nodes):
xname.append(node1['name'])
yname.append(node2['name'])
alpha.append(min(counts[i,j]/4.0, 0.9) + 0.1)
if node1['group'] == node2['group']:
color.append(colormap[node1['group']])
else:
color.append('lightgrey')
data=dict(
xname=xname,
yname=yname,
colors=color,
alphas=alpha,
count=counts.flatten(),
)
p = figure(title="Les Mis Occurrences",
x_axis_location="above", tools="hover,save",
x_range=list(reversed(names)), y_range=names,
tooltips = [('names', '@yname, @xname'), ('count', '@count')])
p.width = 800
p.height = 800
p.grid.grid_line_color = None
p.axis.axis_line_color = None
p.axis.major_tick_line_color = None
p.axis.major_label_text_font_size = "7px"
p.axis.major_label_standoff = 0
p.xaxis.major_label_orientation = np.pi/3
p.rect('xname', 'yname', 0.9, 0.9, source=data,
color='colors', alpha='alphas', line_color=None,
hover_line_color='black', hover_color='colors')
show(p)