plotly でネットワークを描画しようとした

plotly-network.py

import plotly
import plotly.offline as py
import plotly.graph_objs as go
plotly.offline.init_notebook_mode(connected=True)

# pos = nx.spring_layout(graph)
pos = nx.circular_layout(graph)

Xv = [v[0] for v in pos.values()]
Yv = [v[1] for v in pos.values()]
Xed = np.array([[pos[edge[0]][0], pos[edge[1]][0]] for edge in graph.edges()]).flatten()
Yed = np.array([[pos[edge[0]][1], pos[edge[1]][1]] for edge in graph.edges()]).flatten()
labels = graph.nodes()

trace1=go.Scatter(x=Xed,
                  y=Yed,
                  mode='lines',
                  line=go.Line(width=0.5,color='#888'),
                  name='follow',
                  hoverinfo='none'
)
trace2=go.Scatter(x=Xv,
                  y=Yv,
                  mode='markers',
                  name='users',
                  marker=go.Marker(symbol='dot', color='red', size=20),
                  text=labels,
                  hoverinfo='text'
)

images = [{"source": graph.node[user_id]['image_url'], 
           "x": pos[user_id][0]/2.3 + 0.48, # hardcoding transformation
           "y": pos[user_id][1]/2.3 + 0.55, # not good
           "sizex": 0.1, 
           "sizey": 0.1,
           } for user_id in graph.nodes()]
        
layout= go.Layout(images=images)
fig=go.Figure(data=[trace1, trace2], layout=layout)
py.iplot(fig)