--- Begin Forwarded Message --- Date: Tue, 13 Feb 2001 09:59:36 +1100 From: Brendan Whyte <[log in to unmask]> Subject: Re: MAP QUESTION! <fwd> Sender: Brendan Whyte <[log in to unmask]> It's a standard mathematical convention. When we give co ordinates, whether on a map or a graph, we use the convention (x,y) where x is along the bottom and y is up the side fomr the origin. Latitude is measured from the equator (0 degrees N or S) and Long from Greenwich. So from cartesian mathematics and graphs like you all did in school, so long. then lat. With any graph, the main variable is along the x axis, and the secondary one on the y, hence reading x first. Brendan Whyte Melbourne Uni _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. --- End Forwarded Message ---