Re: Earth distance

From: Dennis Gearon <gearond(at)cvc(dot)net>
To: Bruno Wolff III <bruno(at)wolff(dot)to>
Cc: Tad Marko <tad(at)tadland(dot)net>, Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com>, pgsql-general(at)postgresql(dot)org
Subject: Re: Earth distance
Date: 2003-04-02 16:21:53
Message-ID: 3E8B0E21.80500@cvc.net
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How easy would it be to add other datums, or the flattened spheroid model to be
an option for calculations?

Bruno Wolff III wrote:
> On Tue, Apr 01, 2003 at 13:09:33 -0800,
> Dennis Gearon <gearond(at)cvc(dot)net> wrote:
>
>>So does Postgres do 'Great Circle' calculations? Like distance between two
>>points? What dataset does it use?
>
>
> Yes it does Great Circle distance. It uses a spherical model, so the only
> parameter is the Earth's radius.
>

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