Обсуждение: earthdistance results seem to be wrong.

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earthdistance results seem to be wrong.

От
mikecoxlinux@yahoo.com (Mike Cox)
Дата:
I'm running PostgreSQL 8.0 beta 1.  I'm using the
earthdistance to find the distance between two
different latitude and logitude locations.
Unfortunately, the result seems to be wrong.

Here is what I'm doing:
select
earth_distance(ll_to_earth('122.55688','45.513746'),ll_to_earth('122.396357','47.648845'));

The result I get is this:

128862.563227506

The distance from Portland to Seattle is not 128862
miles.

Re: earthdistance results seem to be wrong.

От
Chris Mair
Дата:
> select
> earth_distance(ll_to_earth('122.55688','45.513746'),ll_to_earth('122.396357','47.648845'));
>
> The result I get is this:
>
> 128862.563227506
>
> The distance from Portland to Seattle is not 128862
> miles.

It is 128000m = 128km.

Welcome to the metric system :)

Bye, Chris.