59 lines
1.7 KiB
Python
59 lines
1.7 KiB
Python
|
from math import radians, sin, cos, sqrt, atan2
|
||
|
|
|
||
|
|
|
||
|
|
# class PolygonChecker:
|
||
|
|
# """
|
||
|
|
# A class to check if a point is inside a polygon defined by its vertices.
|
||
|
|
# The polygon is defined by a list of points (latitude, longitude).
|
||
|
|
#
|
||
|
|
# """
|
||
|
|
# def __init__(self, *points):
|
||
|
|
# self.coords = points[:] if points else []
|
||
|
|
# self.polygon = Polygon(self.coords)
|
||
|
|
#
|
||
|
|
# def is_inside(self, point) -> bool:
|
||
|
|
# return self.polygon.contains(point)
|
||
|
|
|
||
|
|
class CircleChecker:
|
||
|
|
"""
|
||
|
|
A class to check if a point is inside a circle defined by its center and radius.
|
||
|
|
The circle is defined by a center point (latitude, longitude) and a radius in meters
|
||
|
|
"""
|
||
|
|
def __init__(self, center, radius_meters):
|
||
|
|
self.center = center
|
||
|
|
self.radius_meters = radius_meters
|
||
|
|
|
||
|
|
def is_inside(self, point) -> bool:
|
||
|
|
return is_inside_circle(self.center, point, self.radius_meters)
|
||
|
|
|
||
|
|
|
||
|
|
def is_inside_circle(center, point, radius_meters):
|
||
|
|
R = 6371000 # Earth radius in meters
|
||
|
|
lat1, lon1 = center
|
||
|
|
lat2, lon2 = point
|
||
|
|
|
||
|
|
dlat = radians(lat2 - lat1)
|
||
|
|
dlon = radians(lon2 - lon1)
|
||
|
|
|
||
|
|
a = sin(dlat / 2) ** 2 + cos(radians(lat1)) * cos(radians(lat2)) * sin(dlon / 2) ** 2
|
||
|
|
c = 2 * atan2(sqrt(a), sqrt(1 - a))
|
||
|
|
distance = R * c
|
||
|
|
|
||
|
|
return distance <= radius_meters
|
||
|
|
|
||
|
|
|
||
|
|
# Default CircleChecker with a radius of 1000 meters
|
||
|
|
lido_circle_checker = CircleChecker((46.6770371, 11.1860135), 160) # Center
|
||
|
|
|
||
|
|
# Default PolygonChecker with a predefined polygon
|
||
|
|
# polygon_coords = [
|
||
|
|
# (46.677168, 11.185606),
|
||
|
|
# (46.676910, 11.185692),
|
||
|
|
# (46.676673, 11.186094),
|
||
|
|
# (46.676691, 11.186630),
|
||
|
|
# (46.676673, 11.187094),
|
||
|
|
# (46.677309, 11.187242),
|
||
|
|
# (46.677280, 11.185606)
|
||
|
|
# ]
|
||
|
|
#
|
||
|
|
# lido_polygon_checker = PolygonChecker(polygon_coords)
|