def plot_route_network_thumbnail(g, map_style=None):
width = 512 # pixels
height = 300 # pixels
scale = 24
dpi = mpl.rcParams["figure.dpi"]
width_m = width * scale
height_m = height * scale
median_lat, median_lon = get_median_lat_lon_of_stops(g)
dlat = util.wgs84_height(height_m)
dlon = util.wgs84_width(width_m, median_lat)
spatial_bounds = {
"lon_min": median_lon - dlon,
"lon_max": median_lon + dlon,
"lat_min": median_lat - dlat,
"lat_max": median_lat + dlat
}
fig = plt.figure(figsize=(width / dpi, height / dpi))
ax = fig.add_subplot(111)
plt.subplots_adjust(bottom=0.0, left=0.0, right=1.0, top=1.0)
return plot_route_network_from_gtfs(g,
ax,
spatial_bounds,
map_alpha=1.0,
scalebar=False,
legend=False,
map_style=map_style)
def test_wgs84_width(self):
lat = 60.4192161560059
lon = 25.3302955627441
# Test going 100m east
width = util.wgs84_width(100, lat)
lon2 = lon + width
d = util.wgs84_distance(lat, lon, lat, lon2)
self.assertTrue(self._approximately_equal(d, 100))
# Test going 100m south
height = util.wgs84_height(100)
lat2 = lat + height
d = util.wgs84_distance(lat, lon, lat2, lon)
self.assertTrue(self._approximately_equal(d, 100))