Projecting sphere onto plane {orthographic projection, area} can use parallel rays to place one hemisphere on its equatorial plane, making circle edges highly distorted. Orthographic projection preserves either equivalent angles or areas. Mapmaker can choose to keep equivalent areas or equivalent directions but cannot choose both.
Mathematical Sciences>Geometry>Projections>Sphere To Plane>Area Constant
3-Geometry-Projections-Sphere To Plane-Area Constant
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Date Modified: 2022.0224