Illustrated Glossary
Map projection
Release date: February 9, 2022
Definition
A map projection is the mathematical formula used in the process of transforming positions from the earth's three-dimensional curved surface to a two-dimensional flat surface. The positions on the earth are defined using spherical coordinates of latitude and longitude, usually given in degrees. On a map, the positions may still be defined by spherical coordinates, or by linear coordinates, usually given in metres.
For more information on map projection, consult the Dictionary, Census of Population, 2021.
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