#equirectangular

Lee Tetrahedron Polyhedral Conformal

Invented by L P Lee in 1965, the Lee Conformal World in a Tetrahedron is constructed using a similar method to the Cahill Conformal Butterfly, but using a tetrahedron as its base rather than an octahedron, the result is a projection that represents the world in a triangle.

Lee originally presented it with centred on the south pole, but I'm showing both polar aspects here because that's what map-projections.net does I thought it would be useful given that the north pole aspect doesn't interrupt the continents..

Equirectangular Cylindrical Equidistant

Probably the simplest projection in this tournament, the equirectangular (or plate carrée) projection was probably invented by Marinus of Tyre around 100 CE. It projects latitude and longitude onto a square grid, so that going north, south, east, or west by 1° moves the same distance on the map.

While it is rarely used for general-purpose maps or navigation, this property means it is often used for pixelated datasets and statistical mapping as it is very simple to convert between latitude/longitude and pixel coordinates. Most map projection software will take input images in the form of an equirectangular map.

It is one of the projections featured in xkcd 977.

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