可以在 Folium 中绘制路径吗？

我阅读了许多与此相关的文档，但找不到我想要的东西。

我想绘制两点之间的步行路径。是否可以？如果没有，python 中是否有其他库用于此目的？

当然可以。使用PolyLine https://python-visualization.github.io/folium/modules.html#folium.vector_layers.PolyLine:

import folium

m = folium.Map(location=[40.720, -73.993],
              zoom_start=15)

loc = [(40.720, -73.993),
       (40.721, -73.996)]

folium.PolyLine(loc,
                color='red',
                weight=15,
                opacity=0.8).add_to(m)
m

你得到：

EDIT 1

为了画一个步行道在两点之间，您可以使用以下组合OSMnx https://github.com/gboeing/osmnx and networkx https://networkx.github.io/:

import osmnx as ox
import networkx as nx

ox.config(log_console=True,
          use_cache=True)

G_walk = ox.graph_from_place('Manhattan Island, New York City, New York, USA',
                             network_type='walk')

orig_node = ox.get_nearest_node(G_walk,
                                (40.748441, -73.985664))

dest_node = ox.get_nearest_node(G_walk,
                                (40.748441, -73.4))

route = nx.shortest_path(G_walk, orig_node, dest_node, weight='length')

fig, ax = ox.plot_graph_route(G_walk,
                              route,
                              node_size=0,
                              save=True,
                              file_format='svg',
                              filename='test')

你得到：

EDIT 2

对于 folium 类型的地图，您可以使用plot_route_folium https://osmnx.readthedocs.io/en/stable/osmnx.html#osmnx.plot.plot_route_folium:

import osmnx as ox
import networkx as nx

ox.config(log_console=True, use_cache=True)

G_walk = ox.graph_from_place('Manhattan Island, New York City, New York, USA',
                             network_type='walk')

orig_node = ox.get_nearest_node(G_walk,
                                (40.748441, -73.985664))

dest_node = ox.get_nearest_node(G_walk,
                                (40.748441, -73.4))

route = nx.shortest_path(G_walk,
                         orig_node,
                         dest_node,
                         weight='length')

route_map = ox.plot_route_folium(G_walk, route)

route_map.save('route.html')

你会得到一个有用的 html 文件：