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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()

Total running time of the script: (0 minutes 0.221 seconds)

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