Python 图形化GDF，反之亦然

当我使用python的

osmnx

时，会发生以下情况：

graph = osmnx.graph_from_polygon(Data.bbox)

gdf_nodes, gdf_edges = osmnx.save_load.graph_to_gdfs(
        graph,
        nodes=True, edges=True,
        node_geometry=True,
        fill_edge_geometry=True)
print(gdf_edges['u']) # prints the values nicely

graph2 = osmnx.save_load.gdfs_to_graph(gdf_nodes, gdf_edges) # misses 'v' and 'u' column in gdf_nodes

然后我得到以下错误：

  File "C:\Users\jpelda\AppData\Local\Continuum\anaconda3\lib\site-packages\osmnx\save_load.py", line 513, in gdfs_to_graph
    G.add_edge(u=row['u'], v=row['v'], key=row['key'], **attrs)

TypeError: add_edge() missing 2 required positional arguments: 'u_for_edge' and 'v_for_edge'

将networkx导入为nx
nx.Graph.add_边（第['u']行，第['v']行）

工作

---

显然，u和v不能作为可选项给出！对于新的networkx版本，这种情况发生了变化吗？

请确保您使用的是最新发布的OSMnx版本（从今天起为0.8.1版）和networkx版本（从今天起为2.1版）。您的代码片段工作正常。完整的工作示例：

import networkx as nx
import osmnx as ox
print(ox.__version__)
print(nx.__version__)
graph = ox.graph_from_place('Piedmont, California, USA', network_type='drive')
gdf_nodes, gdf_edges = ox.graph_to_gdfs(
        graph,
        nodes=True, edges=True,
        node_geometry=True,
        fill_edge_geometry=True)
graph2 = ox.gdfs_to_graph(gdf_nodes, gdf_edges)