四格图#

使用matplotlib绘制一个4x4的图形。

这个示例展示了如何使用`networkx.draw`的关键字参数来自定义一个包含4x4网格的简单图形的可视化效果。

plot four grids
import matplotlib.pyplot as plt
import networkx as nx

G = nx.grid_2d_graph(4, 4)  # 4x4 网格

pos = nx.spring_layout(G, iterations=100, seed=39775)

# 创建一个2x2的子图
fig, all_axes = plt.subplots(2, 2)
ax = all_axes.flat

nx.draw(G, pos, ax=ax[0], font_size=8)
nx.draw(G, pos, ax=ax[1], node_size=0, with_labels=False)
nx.draw(
    G,
    pos,
    ax=ax[2],
    node_color="tab:green",
    edgecolors="tab:gray",  # 节点表面颜色
    edge_color="tab:gray",  # 图边缘的颜色
    node_size=250,
    with_labels=False,
    width=6,
)
H = G.to_directed()
nx.draw(
    H,
    pos,
    ax=ax[3],
    node_color="tab:orange",
    node_size=20,
    with_labels=False,
    arrowsize=10,
    width=2,
)

# 设置轴的边距,以确保节点不被裁剪
for a in ax:
    a.margins(0.10)
fig.tight_layout()
plt.show()

Total running time of the script: (0 minutes 0.135 seconds)

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