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| """ | |
| ====================== | |
| Read and write graphs. | |
| ====================== | |
| Read and write graphs. | |
| """ | |
| import matplotlib.pyplot as plt | |
| import networkx as nx | |
| G = nx.grid_2d_graph(5, 5) # 5x5 grid | |
| # print the adjacency list | |
| for line in nx.generate_adjlist(G): | |
| print(line) | |
| # write edgelist to grid.edgelist | |
| nx.write_edgelist(G, path="grid.edgelist", delimiter=":") | |
| # read edgelist from grid.edgelist | |
| H = nx.read_edgelist(path="grid.edgelist", delimiter=":") | |
| pos = nx.spring_layout(H, seed=200) | |
| nx.draw(H, pos) | |
| plt.show() | |