更改OSMNX ox.plot_graph_routes（）中的图形大小

Question

我正在尝试使用OSMNX包的函数plot\u graph\u route（）解决在绘图中增加图形大小（或至少导出较大的图形大小）的问题。这是我目前用Python编写的代码

import osmnx as ox
import matplotlib.pyplot as plt

G = ox.graph_from_point(center_point = (30.657000, 104.066002), dist = 10000, dist_type = 'bbox', network_type = 'drive')

route1 = nx.astar_path(G=G, source=3541376411, target=1500638653)
route2 = nx.astar_path(G=G, source=5502368091, target=2956775232)
routes = [route1, route2]

rc = ['r', 'b']

fig, ax = ox.plot_graph_routes(G, routes, route_colors=rc, node_size=0)

任何帮助都会很好