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@pravj pravj/octogrid_basic.py
Last active Nov 29, 2017

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The basic version of "octogrid", to visualize communities in GitHub following network
import igraph as ig
import plotly.plotly as py
from plotly.graph_objs import *
G = ig.Graph.Read_GML('network.gml')
labels = list(G.vs['label'])
N = len(labels)
E = [e.tuple for e in G.es]
layt = G.layout('graphopt')
community = G.community_multilevel().membership
communities = len(set(community))
color_list = ['#6959CD', '#DD5E34', '#69CD45', '#000005']
Xn = [layt[k][0] for k in range(N)]
Yn = [layt[k][1] for k in range(N)]
Xe = []
Ye = []
for e in E:
Xe+ = [layt[e[0]][0], layt[e[1]][0], None]
Ye+ = [layt[e[0]][1], layt[e[1]][1], None]
trace1 = Scatter(x=Xe,
y=Ye,
mode='lines',
line=Line(color='rgb(210,210,210)', width=1),
hoverinfo='none'
)
node_x = [[] for i in range(communities)]
node_y = [[] for i in range(communities)]
labelz = [[] for i in range(communities)]
for j in range(len(community)):
index = community[j]
node_x[index].append(layt[j][0])
node_y[index].append(layt[j][1])
labelz[index].append(labels[j])
plot_data = [trace1]
for i in range(communities):
trace = Scatter(x=node_x[i],
y=node_y[i],
mode='markers',
name='ntw',
marker=Marker(symbol='dot',
size=5,
color=color_list[i],
line=Line(color='rgb(50,50,50)', width=0.5)
),
text=labelz[i],
hoverinfo='text'
)
plot_data.append(trace)
axis=dict(showline=False, # hide axis line, grid, ticklabels and title
zeroline=False,
showgrid=False,
showticklabels=False,
title=''
)
width = 800
height = 800
layout = Layout(title= "GitHub Network",
font=Font(size=12),
showlegend=False,
autosize=False,
width=width,
height=height,
xaxis=XAxis(axis),
yaxis=YAxis(axis),
margin=Margin(
l=100,
r=40,
b=85,
t=100,
),
hovermode='closest',
annotations=Annotations([
Annotation(
showarrow=False,
text='This igraph.Graph has the graphopt layout',
xref='paper',
yref='paper',
x=0,
y=-0.1,
xanchor='left',
yanchor='bottom',
font=Font(
size=14
)
)
]),
)
data = Data(plot_data)
fig = Figure(data=data, layout=layout)
py.plot(fig, filename='github-network-community-igraph')
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