Saturday, 24 October 2015

Why some coordinate systems define x-axis as northings and some as easting?


The definition of north and east are pretty straight forward to grasp but only becomes difficult when used interchangably with x-y coordinates which have varying definitions for the direction of the axes. In Mathematics y was always vertical and x was always horizontal so logically I would assume that "up" == "northing" == "y" and "along" == "easting" == "x".


Why is this not the case in GIS?




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