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An approximation of the AuthaGraph projection. AuthaGraph is an approximately equal-area world map projection invented by Japanese architect Hajime Narukawa [1] in 1999. [2] The map is made by equally dividing a spherical surface into 96 triangles, transferring it to a tetrahedron while maintaining area proportions, and unfolding it in the form of a rectangle: it is a polyhedral map projection.
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.
The continental scale level refers to a continent; The global scale applies to the entire world; The fluvial scale level relates to river basins (this scale level is mainly used in the context of pollution, for example). Global and continental scale: the world with continents. National and regional scale:The United States with all the states ...
Early world maps cover depictions of the world from the Iron Age to the Age of Discovery and the emergence of modern geography during the early modern period.Old maps provide information about places that were known in past times, as well as the philosophical and cultural basis of the map, which were often much different from modern cartography.
This image is a map derived from a United Nations map. Unless stated otherwise, UN maps are to be considered in the public domain. This applies worldwide. Some UN maps have special copyrights, as indicated on the map itself. UN maps are, in principle, open source material and you can use them in your work or for making your own map.
An initiative to develop Global Map under international cooperation, the Global Mapping Project, was advocated in 1992 by Ministry of Construction, Japan (MOC) at the time (the current Ministry of Land, Infrastructure, Transport and Tourism, Japan-MLIT). Global Map is digital geospatial information in 1 km resolution which satisfies the ...
However, the Web Mercator uses the spherical formulas at all scales whereas large-scale Mercator maps normally use the ellipsoidal form of the projection. [citation needed] The discrepancy is imperceptible at the global scale but causes maps of local areas to deviate slightly from true ellipsoidal Mercator maps at the same scale.