Directed GraphΒΆ
Draw a graph with directed edges using a colormap and different node sizes.
Edges have different colors and alphas (opacity). Drawn using matplotlib.
# Author: Rodrigo Dorantes-Gilardi (rodgdor@gmail.com)
from __future__ import division
import matplotlib.pyplot as plt
import networkx as nx
G = nx.generators.directed.random_k_out_graph(10, 3, 0.5)
pos = nx.layout.spring_layout(G)
node_sizes = [3 + 10 * i for i in range(len(G))]
M = G.number_of_edges()
edge_colors = range(2, M + 2)
edge_alphas = [(5 + i) / (M + 4) for i in range(M)]
nodes = nx.draw_networkx_nodes(G, pos, node_size=node_sizes, node_color='blue')
edges = nx.draw_networkx_edges(G, pos, node_size=node_sizes, arrowstyle='->',
arrowsize=10, edge_color=edge_colors,
edge_cmap=plt.cm.Blues, width=2)
# set alpha value for each edge
for i in range(M):
edges[i].set_alpha(edge_alphas[i])
ax = plt.gca()
ax.set_axis_off()
plt.show()
Total running time of the script: ( 0 minutes 0.125 seconds)