Shows less distance between two postal codes

symerio / pgeocode

Postal code geocoding and distance calculation

https://pgeocode.readthedocs.io/

BSD 3-Clause "New" or "Revised" License

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Shows less distance between two postal codes #84

Closed ak4zh closed 2 months ago

ak4zh commented 2 months ago

I have tried with multiple postal codes and the distance calculated is 25%-30% lesser than what google maps suggest. Is there a way to get more accurate distance?

import pgeocode

dist = pgeocode.GeoDistance('in')
dist.query_postal_code("629702", "180001")

Returns: 2752 kms As per google maps it's 3400 kms

rth commented 2 months ago

This is expected,

pgeocode gives you distance between two coordinates if you go in a straight line
google maps gives you the distance of the fastest road if you travel by car (or other means of transportation). It's often faster to use larger roads even if if it means traveling in this case 600km more.

The correct distance is in this case given by pgeocode. Closing but don't hesitate to comment.