79 lines
2.1 KiB
Python
79 lines
2.1 KiB
Python
import overpy
|
|
import math
|
|
import workers.val
|
|
|
|
def getOSM(lat, lon, distance = 1000):
|
|
query = """
|
|
(
|
|
node
|
|
(around:%i,%f,%f)
|
|
["railway"~"tram_stop|station|subway"]
|
|
[name];
|
|
>;
|
|
|
|
node
|
|
(around:%i,%f,%f)
|
|
["highway"="bus_stop"]
|
|
[name];
|
|
>;);
|
|
|
|
out;
|
|
""" % (distance, lat, lon, distance, lat, lon)
|
|
|
|
api = overpy.Overpass(url="https://overpass.kumi.systems/api/interpreter")
|
|
res = api.query(query)
|
|
|
|
return res.nodes
|
|
|
|
def cDistance(lat1, lon1, lat2, lon2):
|
|
lat1, lon1, lat2, lon2 = map(math.radians, [lat1, lon1, lat2, lon2])
|
|
|
|
dila = lat2 - lat1
|
|
dilo = lon2 - lon1
|
|
|
|
diff = 2 * math.asin(math.sqrt(math.sin(dila/2) ** 2 + math.cos(lat1) * math.cos(lat2) * math.sin(dilo/2) ** 2))
|
|
|
|
dis = diff * 6371000
|
|
|
|
return dis
|
|
|
|
def getStations(nodes, distance = 1000, lat = None, lon = None):
|
|
unodes = list(set([node.tags["alt_name"].split(",")[0] if "alt_name" in node.tags and len(node.tags["alt_name"].split(",")[0]) > len(node.tags["name"]) else node.tags["name"] for node in nodes]))
|
|
for node in unodes:
|
|
for station in workers.val.validateName(node):
|
|
if lat and lon:
|
|
idistance = cDistance(station.lat(), station.lon(), lat, lon)
|
|
if idistance < distance:
|
|
station.distance = idistance
|
|
yield station
|
|
break
|
|
else:
|
|
yield station
|
|
break
|
|
|
|
def findStations(lat, lon, distance = 1000, validate = True):
|
|
stations = list(getStations(getOSM(lat, lon, distance), distance, lat if validate else None, lon if validate else None))
|
|
|
|
if validate:
|
|
return sorted(stations, key = lambda station: station.distance)
|
|
|
|
return stations
|
|
|
|
def worker(lat, lon, distance = 1000, json = False):
|
|
outtext = """{
|
|
"stations": [
|
|
""" if json else """<?xml version="1.0" encoding="UTF-8"?>
|
|
<stations>
|
|
"""
|
|
|
|
for station in findStations(lat, lon, distance):
|
|
outtext += ",\n" if (json and not outtext.strip()[-1] == "[") else ""
|
|
station.distance = station.distance or int(cDistance(station.lat(), station.lon(), lat, lon))
|
|
outtext += station.json(2, distance = True) if json else station.xml(1, distance = True)
|
|
outtext += "\n" if not json else ""
|
|
|
|
outtext += """
|
|
]
|
|
}""" if json else "</stations>"
|
|
|
|
return outtext
|