Spaces:
Running
Running
import requests | |
import json | |
def get_area_lat_lon(area_name: str) -> tuple[float, float]: | |
"""Get the latitude and longitude of an area from Nominatim. | |
Uses the [Nominatim API](https://nominatim.org/release-docs/develop/api/Search/). | |
Args: | |
area_name: The name of the area. | |
Returns: | |
The area found. | |
""" | |
response = requests.get( | |
f"https://nominatim.openstreetmap.org/search?q={area_name}&format=json", | |
headers={"User-Agent": "Mozilla/5.0"}, | |
) | |
response.raise_for_status() | |
area = json.loads(response.content.decode()) | |
return area[0]["lat"], area[0]["lon"] | |
def driving_hours_to_meters(driving_hours: int) -> int: | |
"""Convert driving hours to meters assuming a 70 km/h average speed. | |
Args: | |
driving_hours: The driving hours. | |
Returns: | |
The distance in meters. | |
""" | |
return driving_hours * 70 * 1000 | |
def get_lat_lon_center(bounds: dict) -> tuple[float, float]: | |
"""Get the latitude and longitude of the center of a bounding box. | |
Args: | |
bounds: The bounding box. | |
```json | |
{ | |
"minlat": float, | |
"minlon": float, | |
"maxlat": float, | |
"maxlon": float, | |
} | |
``` | |
Returns: | |
The latitude and longitude of the center. | |
""" | |
return ( | |
(bounds["minlat"] + bounds["maxlat"]) / 2, | |
(bounds["minlon"] + bounds["maxlon"]) / 2, | |
) | |
def get_surfing_spots( | |
lat: float, lon: float, radius: int | |
) -> list[tuple[str, tuple[float, float]]]: | |
"""Get surfing spots around a given latitude and longitude. | |
Uses the [Overpass API](https://wiki.openstreetmap.org/wiki/Overpass_API). | |
Args: | |
lat: The latitude. | |
lon: The longitude. | |
radius: The radius in meters. | |
Returns: | |
The surfing places found. | |
""" | |
overpass_url = "https://overpass-api.de/api/interpreter" | |
query = "[out:json];(" | |
query += f'nwr["natural"="beach"](around:{radius},{lat},{lon});' | |
query += f'nwr["natural"="reef"](around:{radius},{lat},{lon});' | |
query += ");out body geom;" | |
params = {"data": query} | |
response = requests.get( | |
overpass_url, params=params, headers={"User-Agent": "Mozilla/5.0"} | |
) | |
response.raise_for_status() | |
elements = response.json()["elements"] | |
return [ | |
(element.get("tags", {}).get("name", ""), get_lat_lon_center(element["bounds"])) | |
for element in elements | |
if "surfing" in element.get("tags", {}).get("sport", "") and "bounds" in element | |
] | |