Nathan Brake
Skip points that dont have a bounds (#33)
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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
]