NetworkX:工程图 [英] NetworkX: Drawing Graph

问题描述

我正在尝试在Python中使用NetworkX绘制图形.我正在使用以下代码:

I am trying to draw a graph using NetworkX in Python. I am using the following code:

G=nx.to_networkx_graph(adj)
pos=nx.spring_layout(G)

#G=nx.path_graph(8)
nx.draw(G,pos,labels)
plt.savefig("simple_path.png") # save as png
plt.show() # display

我得到以下输出:

但是我想获得带有Labels的以下输出:

But I want to get the following output with Labels:

该如何处理代码?谢谢.

What can I do on the code? thank you.

推荐答案

因此，为了进行定位，您已经基于spring_layout设置了pos. pos给出节点的位置.签出-定义好后，请python为您打印pos并查看其作用.

So for the positioning, you've set pos based on spring_layout. pos gives the positions of your nodes. Check it out - once you've defined it, ask python to print pos for you and see what it's doing.

这是替代代码:

import networkx as nx
import pylab as py
blue_edges = [('B', 'C'), ('B', 'D'), ('B', 'E'), ('E', 'F')]
red_edges = [('A', 'B'), ('A', 'C'), ('C', 'E'), ('D', 'E'), ('D', 'F')]

G=nx.Graph() #define G
G.add_edges_from(blue_edges)
G.add_edges_from(red_edges)

pos = {'A':(0,0), 'B':(1,1), 'C':(1,-1), 'D':(2,1), 'E':(2,-1), 'F':(3,0)}

nx.draw_networkx(G, pos=pos, edgelist = [], node_color = 'k')
nx.draw_networkx(G, pos=pos, nodelist = [], edgelist = blue_edges, edge_color = 'b')
nx.draw_networkx(G, pos=pos, nodelist = [], edgelist = red_edges, edge_color = 'r')

，如果您希望它不显示x和y轴，请将最后一位更改为:

and if you want it without the x and y axes showing, change the last bit to:

nx.draw(G, pos=pos, edgelist = [], node_color = 'k')
nx.draw(G, pos=pos, nodelist = [], edgelist = blue_edges, edge_color = 'b')
nx.draw(G, pos=pos, nodelist = [], edgelist = red_edges, edge_color = 'r')

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