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Encyclopedia > Winkel Tripel Projection
A Winkel Tripel projection of the Earth

Winkel's Tripel projection was developed to show a map of the round Earth on flat paper with minimal distortion. This work is copyrighted. ... This work is copyrighted. ... Earth, also known as the Earth or Terra, is the third planet outward from the Sun. ...


The projection was devised by the Dutch cartographer Oswald Winkel in 1914, as a modification of the Aitoff projection. Much like in his first and second hybrid maps, Winkel's tripel projection averages the equidistant cylindrical projection, this time with Aitoff's. Again, φ0 = ±arccos 2/π are usually chosen as the standard parallels for the cylindrical base (although the final projection has no standard parallels). Equations follow directly from Aitoff's and the equidistant cylindrical's: Cartography or mapmaking (in Greek chartis = map and graphein = write) is the study and practice of making maps or globes. ... 1914 is a common year starting on Thursday. ... Equidistant cylindrical projection of the Globe Equidistant cylindrical projection of a composite satellite image (NASA) The Plate Carrée or Equidistant Cylindrical Projection or Geographic Projection, is a very simple map projection that has been in use since the earliest days of spherical cartography. ...

α = arccos (cos φ cos (λ/2))
w = 0 if sin α = 0, 1 / sin α otherwise
x = R(λ cos φ0 + 2wα cos φ sin (λ/2)) / 2
y = R(φ + wα sin φ) / 2

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Winkel Tripel projection - Wikipedia, the free encyclopedia (255 words)
The Winkel's Tripel projection is a map projection developed to show a map of the round Earth on flat paper with minimal distortion.
It was devised by the cartographer Oswald Winkel as a modification of the Aitoff projection.
Winkel choose the name Tripel because he had developed a compromise projection; it does not eliminate area, direction or distance distortions; rather, it tries to minimize the sum of all three.
Map projection (1619 words)
A map projection is any of many methods used to represent the 3-dimensional surface of the earth or other round body on a 2-dimensional plane in cartography (mapmaking).
Azimuthal[?] projections touch the earth to a plane at one tangent point; angles from that tangent point are preserved, and distances from that point are computed by a function independent of the angle.
Cordiform projection[?] designates a pole and a meridian; distances from the pole are preserved, as are distances from the meridian (which is straight) along the parallels.
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