plot_street_orientation_city.py

gistfile1.txt

import matplotlib.pyplot as plt
import numpy as np
import osmnx as ox

'''
Slimmed down example plot of city street network orientations for a single city, 
instead of multiple as in the osmnx notebook.

Needs the awesome package osmnx:
https://github.com/gboeing/osmnx
e.g. pip install osmnx
'''

weight_by_length = False

# define the study sites as label : query
place = {
    "Hannover": "Hannover, Germany",
}

# create figure and ax
figsize = (5,5)
fig, ax = plt.subplots(1, 1, figsize=figsize, subplot_kw={"projection": "polar"})

# plot each city's polar histogram
for place in sorted(place.keys()):
    print(ox.utils.ts(), place)

    
# get undirected graphs with edge bearing attributes
G = ox.graph_from_place(place, network_type="drive")
Gu = ox.add_edge_bearings(ox.get_undirected(G))
fig, ax = ox.bearing.plot_orientation(Gu, ax=ax, title=place, area=True)

# add figure title and save image
suptitle_font = {
    "family": "DejaVu Sans",
    "fontsize": 16,
    "fontweight": "normal",
    "y": 1,
}
fig.suptitle("Street Network Orientation", **suptitle_font)
fig.tight_layout()
fig.subplots_adjust(hspace=0.35)
plt.show()