How to calculate 3D distance (including altitude) between two points in GeoDjango

Question

Prologue:

This is a question arising often in SO:

• 3d distance calculations with GeoDjango
• Calculating distance between two po

Answer 1

Using geopy, this is the easiest and perfect solution.

https://geopy.readthedocs.io/en/stable/#geopy.distance.lonlat

>>> from geopy.distance import distance
>>> from geopy.point import Point
>>> a = Point(-71.312796, 41.49008, 0)
>>> b = Point(-81.695391, 41.499498, 0)
>>> print(distance(a, b).miles)
538.3904453677203