Willy, Not that newbie of a question. Actually its probably not obvious but distance_sphere and distance_spheroid don't even look at the srid of the geometry fed to them. If you give it a non-long lat coordinates you will also get garbage results as I recall. So they always assume point and point is long lat. Hope that helps, Regina
_____ From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Willy-Bas Loos Sent: Tuesday, September 09, 2008 5:48 AM To: PostGIS Users Discussion Subject: [postgis-users] why specify spheroid? 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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