database store graph

test.py

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+import networkx as nx
+import json
+
+in_file = open("myfile.json", "r")
+js_file = json.load(in_file)
+in_file.close()
+firm_network = nx.adjacency_graph(js_file)
+
+import matplotlib.pyplot as plt
+
+plt.rcParams['font.sans-serif'] = 'SimHei'
+pos = nx.nx_agraph.graphviz_layout(firm_network, prog="twopi", args="")
+node_label = nx.get_node_attributes(firm_network, 'Name')
+# print(node_label)
+node_degree = dict(firm_network.out_degree())
+node_label = {
+    key: f"{node_label[key]} {node_degree[key]}"
+    for key in node_label.keys()
+}
+node_size = list(nx.get_node_attributes(firm_network, 'Revenue_Log').values())
+node_size = list(map(lambda x: x**2, node_size))
+edge_label = nx.get_edge_attributes(firm_network, "Product")
+# multi(di)graphs, the keys are 3-tuples
+edge_label = {(n1, n2): label for (n1, n2, _), label in edge_label.items()}
+plt.figure(figsize=(12, 12), dpi=300)
+nx.draw(firm_network, pos, node_size=node_size, labels=node_label, font_size=6)
+nx.draw_networkx_edge_labels(firm_network, pos, edge_label, font_size=4)
+plt.savefig("network1.png")