1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
|
"""
Interactive Chart with Cross-Highlight
======================================
This example shows an interactive chart where selections in one portion of
the chart affect what is shown in other panels. Click on the bar chart to
see a detail of the distribution in the upper panel.
"""
# category: interactive charts
import altair as alt
from vega_datasets import data
source = data.movies.url
pts = alt.selection_point(encodings=['x'])
rect = alt.Chart(data.movies.url).mark_rect().encode(
alt.X('IMDB_Rating:Q').bin(),
alt.Y('Rotten_Tomatoes_Rating:Q').bin(),
alt.Color('count()').scale(scheme='greenblue').title('Total Records')
)
circ = rect.mark_point().encode(
alt.ColorValue('grey'),
alt.Size('count()').title('Records in Selection')
).transform_filter(
pts
)
bar = alt.Chart(source, width=550, height=200).mark_bar().encode(
x='Major_Genre:N',
y='count()',
color=alt.condition(pts, alt.ColorValue("steelblue"), alt.ColorValue("grey"))
).add_params(pts)
alt.vconcat(
rect + circ,
bar
).resolve_legend(
color="independent",
size="independent"
)
|
