from math import *
def getDistance(latA, lonA, latB, lonB):
ra = 6378140 # radius of equator: meter
rb = 6356755 # radius of polar: meter
flatten = (ra - rb) / ra # Partial rate of the earth
# change angle to radians
radLatA = radians(latA)
radLonA = radians(lonA)
radLatB = radians(latB)
radLonB = radians(lonB)
pA = atan(rb / ra * tan(radLatA))
pB = atan(rb / ra * tan(radLatB))
x = acos(sin(pA) * sin(pB) + cos(pA) * cos(pB) * cos(radLonA - radLonB))
c1 = (sin(x) - x) * (sin(pA) + sin(pB)) ** 2 / cos(x / 2) ** 2
c2 = (sin(x) + x) * (sin(pA) - sin(pB)) ** 2 / sin(x / 2) ** 2
dr = flatten / 8 * (c1 - c2)
distance = ra * (x + dr)
return distance
if __name__ == '__main__':
print(getDistance(32.28132167240107, 118.33287467014101, 32.280080173047665, 118.32728124995704))
标签：__,经纬度,radians,距离,pB,pA,ra,两点,sin From： https://www.cnblogs.com/daizichuan/p/17488754.html