/
export_gml.py
29 lines (21 loc) · 1019 Bytes
/
export_gml.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
"""
exporting newport's street graph to a GML file.
"""
import osmnx as ox
import networkx as nx
import shapely.wkt
streetgraph = ox.graph_from_place('Newport, RI')
def prepForWriting(streetgraph):
## pull out this graph attribute, and put it into each node
for node in streetgraph.graph['streets_per_node']:
streetgraph.node[node]['numstreets'] = streetgraph.graph['streets_per_node'][node]
del streetgraph.graph['streets_per_node']
## GML serializer can't handle shapely linestrings, so convert them
for node1 in streetgraph.edge:
for node2 in streetgraph.edge[node1]:
for ix in streetgraph.edge[node1][node2]:
if 'geometry' in streetgraph.edge[node1][node2][ix]:
streetgraph.edge[node1][node2][ix]['geostr'] = shapely.wkt.dumps(streetgraph.edge[node1][node2][ix]['geometry'])
del streetgraph.edge[node1][node2][ix]['geometry']
prepForWriting(streetgraph)
nx.write_gml(streetgraph, "newport_streets.gml")