rsnape

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rsnape

from math import radians, sin, cos, sqrt, asin, factorial
from itertools import combinations, permutations

# by average circumference instead of authalic radius (assume planes)
# shouldn't actually matter for our purposes as we're using this to generate weights
# been nodes/vertices.
EARTH_RADIUS_KM = 6372.8


def haversine(lat1, long1, lat2, long2, planet_radius=EARTH_RADIUS_KM):