graph.py 文件源码

def draw_transmat_graph(G, edge_threshold=0, lw=1, ec='0.2', node_size=15):

    num_states = G.number_of_nodes()

    edgewidth = [ d['weight'] for (u,v,d) in G.edges(data=True)]
    edgewidth = np.array(edgewidth)
    edgewidth[edgewidth<edge_threshold] = 0

    labels = {}
    labels[0] = '1'
    labels[1]= '2'
    labels[2]= '3'
    labels[num_states-1] = str(num_states)

    npos=circular_layout(G, scale=1, direction='CW')
    lpos=circular_layout(G, scale=1.15, direction='CW')

    nx.draw_networkx_edges(G, npos, alpha=0.8, width=edgewidth*lw, edge_color=ec)

    nx.draw_networkx_nodes(G, npos, node_size=node_size, node_color='k',alpha=0.8)
    ax = plt.gca()
    nx.draw_networkx_labels(G, lpos, labels, fontsize=18, ax=ax); # fontsize does not seem to work :/

    ax.set_aspect('equal')

    return ax