用科学测量地理距离

问题描述

我无法使用scipy的pdist函数的结果.我对真实的地理距离(首选单位:公里)感兴趣.取以下坐标:

I fail to use the outcome of scipy's pdist function. I am interested in the real geographic distance (preferred unit: km). Take the following coordinates:

from scipy.spatial.distance import pdist

coordinates = [ (42.057, -71.08), (39.132, -84.5155) ]
distance = pdist(coordinates)
print distance
# [ 13.75021037]

但是什么是单位?谷歌表示，这两点之间的距离是1179公里.我如何从13.75021037到达那里?

But what's the unit? Google says the distance between these two points is 1179 km. How do I get there from 13.75021037?

推荐答案

现在使用最新的Python 3，这将发出弃用警告.我实际上是通过更容易理解:

Using the latest Python 3, this now gives a deprecation warning. I actually found this answer by @cffk much easier to understand:

(为方便起见，粘贴在这里)

(pasting here for convenience)

>>> from geopy.distance import great_circle
>>> from geopy.distance import geodesic
>>> p1 = (31.8300167,35.0662833) # (lat, lon) - https://goo.gl/maps/TQwDd
>>> p2 = (31.8300000,35.0708167) # (lat, lon) - https://goo.gl/maps/lHrrg
>>> geodesic(p1, p2).meters
429.1676644986777
>>> great_circle(p1, p2).meters
428.28877358686776

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