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
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
| import dash
import dash_cytoscape as cyto
import dash_html_components as html
import dash_core_components as dcc
from dash.dependencies import Input, Output
app = dash.Dash(__name__)
nodes = [
{
'data': {'id': short, 'label': label},
'position': {'x': 20*lat, 'y': -20*long}
}
for short, label, long, lat in (
('la', 'Los Angeles', 34.03, -118.25),
('nyc', 'New York', 40.71, -74),
('to', 'Toronto', 43.65, -79.38),
('mtl', 'Montreal', 45.50, -73.57),
('van', 'Vancouver', 49.28, -123.12),
('chi', 'Chicago', 41.88, -87.63),
('bos', 'Boston', 42.36, -71.06),
('hou', 'Houston', 29.76, -95.37)
)
]
edges = [
{'data': {'source': source, 'target': target}}
for source, target in (
('van', 'la'),
('la', 'chi'),
('hou', 'chi'),
('to', 'mtl'),
('mtl', 'bos'),
('nyc', 'bos'),
('to', 'hou'),
('to', 'nyc'),
('la', 'nyc'),
('nyc', 'bos')
)
]
elements = nodes + edges
app.layout = html.Div([
dcc.Dropdown(
id='dropdown-update-layout',
value='grid',
clearable=False,
options=[
{'label': name.capitalize(), 'value': name}
for name in ['grid', 'random', 'circle', 'cose', 'concentric']
]
),
cyto.Cytoscape(
id='cytoscape-update-layout',
layout={'name': 'grid'},
style={'width': '100%', 'height': '450px'},
elements=elements
)
])
@app.callback(Output('cytoscape-update-layout', 'layout'),
Input('dropdown-update-layout', 'value'))
def update_layout(layout):
return {
'name': layout,
'animate': True
}
if __name__ == '__main__':
app.run_server(debug=True)
|
