The Plate Carrée Map is an equidistant cylindrical projection.
In case of projecting onto a tangent rotation cylinder which touches the sphere in the equator, thus the equator is also mapped length-preserving and the graticule has a quadratic form.
This projection which is already known in antiquity originates from Marinos of Tyre (about 100 A.D.).
In case of projecting onto a secant rotation cylinder which intersects the sphere in the two parallels of latitude v0 und -v0, thus these are also mapped length-preserving and the graticule has a rectangular form.
Marinos of Tyre determined v0 = / 5 because this parallel of latitude coincides nearly with the West-Eastern-midline of the then known world.
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Derivation of cylindrical projections |
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standard parallels |