networkx布局

Question

我现在有一个三元组的列表(node1，node2，weight_of_edge)。有没有什么方法可以让中间有边的节点在布局中靠得很近？

Answer 1

您应该看看NetworkX库，它提供了许多用于创建和操作网络的工具。

一个基于三元组列表的基本示例：

list_of_triplets = [("n1", "n2", 4),
                    ("n3", "n4", 1),
                    ("n5", "n6", 2),
                    ("n7", "n8", 4),
                    ("n1", "n7", 4),
                    ("n2", "n8", 4),
                    ("n8", "n9", 6),
                    ("n4", "n9", 12),
                    ("n4", "n6", 1),
                    ("n2", "n7", 4),
                    ("n1", "n8", 4)]

# The line below in the code change the list in a format that take
# a weight argument in a dictionary, to be computed by NetworkX

formatted_list = [(node[0], node[1], {"weight":node[2]}) for node in list_of_triplets]

绘制图表的步骤：

import matplotlib.pyplot as plt
import networkx as nx

G = nx.Graph()
G.add_edges_from(formatted_list)
nx.draw(G)
plt.show()

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