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- """
- ==========
- Four Grids
- ==========
- Draw a 4x4 graph with matplotlib.
- This example illustrates the use of keyword arguments to `networkx.draw` to
- customize the visualization of a simple Graph comprising a 4x4 grid.
- """
- import matplotlib.pyplot as plt
- import networkx as nx
- G = nx.grid_2d_graph(4, 4) # 4x4 grid
- pos = nx.spring_layout(G, iterations=100, seed=39775)
- # Create a 2x2 subplot
- 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", # Node surface color
- edge_color="tab:gray", # Color of graph edges
- 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,
- )
- # Set margins for the axes so that nodes aren't clipped
- for a in ax:
- a.margins(0.10)
- fig.tight_layout()
- plt.show()
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