Authagraph projection

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The Authagraph projection is an approximately equal -area world map projection that was developed in 1999 by the Japanese architect Hajime Narukawa . The map is created by evenly dividing a spherical surface into 96 triangles, transferring these into a tetrahedron , while maintaining the area relationships and then unfolding the tetrahedron. This gives the map approximately the size and shape of all continents and oceans while reducing distortion, like the Dymaxion world map that Narukawa inspired. The name Authagraph is made up of the words authalic ( true to area ) and -graphy together.

The method for constructing the projection guarantees that each of the 96 regions on the sphere that make up the projection has the correct area, but the projection does not qualify as true-to-area because it does not check the areas in the infinitesimal area.

The Authagraph world map can be tiled seamlessly in all directions . From this tiling, maps in the form of rectangles, triangles and parallelograms can be generated with various world regions in the center. This property makes the map easy to adapt, which allows a decentralized and thus potentially “fairer” view of the world. The projection tries to represent the world map as an "infinite multiverse " that enables the mapping of global phenomena of the 21st century. An example of this is a project by Narukawa, in which the movement of the International Space Station was plotted in a continuous line over a period of twelve hours on a tiled map in Authagraph projection.

In 2011, the Authagraph projection was chosen as the official mapping method by the Japan National Museum of Foresight and Innovation (Miraikan) . It has been used in official Japanese textbooks since 2015. In October 2016, the projection received the 2016 Good Design Award from the Japanese Institute for Design.

See also

Individual evidence

  1. ↑ 鳴 川肇 - Hajime Narukawa. (No longer available online.) Archived from the original on November 5, 2016 ; accessed on December 12, 2016 . Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / ist2010.jp
  2. ↑ a b AuthaGraph Map. In: Theory of Earth System Design 2015. Hajime Narukawa Laboratory, accessed December 12, 2016 .
  3. ↑ a b World Map Projection (AuthaGraph World Map). In: Good Design Award. Accessed December 12, 2016 .
  4. ↑ About AuthaGraph World Map. In: www.authagraph.com. AuthaGraph Co., LTD, accessed December 12, 2016 .
  5. ↑ AuthaGraph ISS Long Term Tracking. In: authagraph.com. Accessed December 12, 2016 .
  6. ^ New standard of the world map: AuthaGraph. In: miraikan.jst.go.jp. Miraikan - The National Museum of Emerging Science and Innovation, accessed December 12, 2016 .
  7. ↑ Masaki Yamada: AuthaGraph World Map Offers New Perspective. (PDF) In: Highlighting Japan April 2012. p. 2 , accessed on December 12, 2016 (English).
  8. ^ Japanese Institute for Design Promotion