如何使用networkx在图形中显示节点名称？

Question

我有代码

import networkx as nx
import matplotlib.pyplot as plt

G = nx.DiGraph()

G.add_nodes_from([1, 2, 3, 4])
G.add_edges_from([(1, 2), (2, 1), (2, 3)])

nx.draw(G)
plt.savefig("graph.png")
plt.show()

它绘制了以下图表:

但是,我需要显示标签.如何在图形的节点内显示数值和单词(一,二,三和四)？

Answer 1

您只需要使用nx.Draw()调用with_labels = True参数:

import networkx as nx
import matplotlib.pyplot as plt

G = nx.DiGraph()

G.add_nodes_from([1, 2, 3, 4])
G.add_edges_from([(1, 2), (2, 1), (2, 3)])

nx.draw(G,with_labels=True)
plt.savefig("graph.png")
plt.show()

你也可以调用font_size,font_color等.

https://networkx.github.io/documentation/latest/reference/drawing.html