def test_validation():
h = '8a28308280fffff' # invalid hex
with pytest.raises(H3CellError):
h3.h3_get_base_cell(h)
with pytest.raises(H3CellError):
h3.h3_get_resolution(h)
with pytest.raises(H3CellError):
h3.h3_to_parent(h, 9)
with pytest.raises(H3CellError):
h3.h3_distance(h, h)
with pytest.raises(H3CellError):
h3.k_ring(h, 1)
with pytest.raises(H3CellError):
h3.hex_ring(h, 1)
with pytest.raises(H3CellError):
h3.h3_to_children(h, 11)
with pytest.raises(H3CellError):
h3.compact({h})
with pytest.raises(H3CellError):
h3.uncompact({h}, 10)
def test_distance():
h = '8a28308280c7fff'
assert h3.h3_distance(h, h) == 0
n = h3.hex_ring(h, 1).pop()
assert h3.h3_distance(h, n) == 1
n = h3.hex_ring(h, 2).pop()
assert h3.h3_distance(h, n) == 2
def on_post(self, req, resp):
resp.status = falcon.HTTP_200
credentials = json.loads(req.stream.read())
body = json.loads(credentials["body"])
wind_power = body["windPower"];
offset = body["offset"];
resolution = body["resolution"];
trees = body["trees"];
tic = time.perf_counter()
wind = Wind();
trees_out = [];
for tree in trees:
longitude = tree["longitude"];
latitude = tree["latitude"];
color = tree["color"];
polygon = wind.getWindLayerCoordinates(longitude, latitude, wind_power, offset)
geoJson = {
'type': 'Polygon',
'coordinates': [polygon]
}
hexagons = h3.polyfill(geoJson, resolution)
h3_index = h3.geo_to_h3(latitude, longitude, resolution);
for hex in hexagons:
direction = h3.h3_distance(h3_index, hex);
opacity = 255 - direction * (80 / wind_power);
if (opacity > 0):
trees_out.append({ 'opacity': opacity, 'hex': hex, 'color': color });
toc = time.perf_counter()
print(f"Downloaded the tutorial in {(toc - tic)*1000:4f} ms")
content = {
'hex': json.dumps(trees_out, default=serialize_sets)
}
resp.body = json.dumps(content)
def on_event(self):
passenger_pre = (taxiOD04_RLsample001 >>
filter_by(X.O_time_block == self.current_time, X.h3_lv7_O == self.current_loc,
X.h3_lv7_D.isin(cell_base_map.h3_index)))
fare = 0
if passenger_pre.shape[0] > 0:
passenger = (passenger_pre >> sample(1)).iloc[0,].to_dict()
if passenger['freq'] * 2 >= random.randint(1, 10):
self.current_loc = passenger['h3_lv7_D']
self.current_time = passenger['D_time_block']
fare = 3000 + h3.h3_distance(passenger['h3_lv7_O'], passenger['h3_lv7_D']) * 1000
return fare
def test_distance_error():
h1 = '8353b0fffffffff'
h2 = '835804fffffffff'
with pytest.raises(H3ValueError):
h3.h3_distance(h1, h2)
def test_h3_distance():
h = '89283082993ffff'
assert 0 == h3.h3_distance(h, h)
assert 1 == h3.h3_distance(h, '8928308299bffff')
assert 5 == h3.h3_distance(h, '89283082827ffff')