Cartesian XYZ coordinates with the origin at the centre of the Earth. The X-axis points towards 0N, 0E (i.e. on the equator to the West of Africa). The Z-axis points towards the North Pole. The Y axis points to 0N, 90E.
Top of page
Click to return to www.cadcorp.com
© Copyright 2000-2017 Computer Aided Development Corporation Limited (Cadcorp).