[postgis-users] why specify spheroid?

[Willy-Bas Loos]

Hi,

(This probably will score me some noob-points, but whatever. Actually i
might loose a few if i get to understand this.)

Why do distance_spheroid et al. require that you specify the spheroid?
Doesn't the srid provide enough information?

cheers,

WBL

-- 
"Patriotism is the conviction that your country is superior to all others
because you were born in it." - George Bernard Shaw
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