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The projection is the arithmetic mean of the equirectangular projection and the Aitoff projection: [2] The name tripel (German for 'triple') refers to Winkel's goal of minimizing three kinds of distortion: area, direction, and distance. [3]
Formulated by using other equal-area map projections as transformations. 1921 Winkel tripel: Pseudoazimuthal Compromise Oswald Winkel: Arithmetic mean of the equirectangular projection and the Aitoff projection. Standard world projection for the NGS since 1998. 1904 Van der Grinten: Pseudoconic Compromise Alphons J. van der Grinten: Boundary is ...
The Winkel projection is a group of three map projections proposed in 1921 by the German ... Winkel II uses the Mollweide projection, [2] and Winkel Tripel ...
The National Geographic Society (NGS) began using the Robinson projection for general-purpose world maps in 1988, replacing the Van der Grinten projection. [2] In 1998, NGS abandoned the Robinson projection for that use in favor of the Winkel tripel projection, as the latter "reduces the distortion of land masses as they near the poles". [3] [4]
The Robinson projection was adopted by National Geographic magazine in 1988 but abandoned by them in about 1997 for the Winkel tripel. Compromise projections give up the idea of perfectly preserving metric properties, seeking instead to strike a balance between distortions, or to simply make things look right.
The Winkel tripel projection with Tissot's indicatrix of deformation. Background. QGIS display your data using the projection you tell it to use. By default, the lat/long projection (= Equirectangular projection, example aside) is used, code: WGS84 lat/lon (EPSG:4326). This projection is the most convenient for georeferencing, but imply strong ...
All projections distort geographic features, distances, and directions in some way. The various map projections that have been developed provide different ways of balancing accuracy and the unavoidable distortion inherent in making world maps. Perhaps the best-known projection is the Mercator Projection, originally designed as a nautical chart.
An azimuthal projection showing the minimal interruption possible: one point, which, in this case, is the south pole that has turned into a ring around the entire map. In map projections, an interruption is any place where the globe has been split. All map projections are interrupted at at least one point.