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Authagraph is an equal-area type world map projection that was invented by Japanese architect Hajime Narukawa〔(【引用サイトリンク】title=魑ｴ蟾晁ｇ - Hajime Narukawa )〕 (鳴川肇) in 1999.〔(【引用サイトリンク】title=A new accurate world « Exploraciones )〕While conceptually in the category of an equal-area projection, it would require further subdivision to qualify as an actual equal-area map. The Authagraph world map can be tiled in any direction without visible seams. From this map-tiling, a new world map with triangular, rectangular or a parallelogram’s outline can be framed out with various regions at its center. This map provides a decentralized world view.〔http://www.authagraph.com/projects/description/【作品解説】記事01/?lang=en〕 The map projection tries to reflect an infinite multiverse perspective that is intended to be of particular use for the understanding of global phenomena in the 21st century. The projection is uniquely useful for tessellation and thus allows for depicting temporal themes, such as a satellite’s long term movement around the earth in a continuous line.〔(【引用サイトリンク】title=ICC ONLINE - ARCHIVE - 2009 - Open Space 2009 - Works )〕 This rectangular world map is made by equally dividing a spherical surface into 96 triangles, transferring it to a tetrahedron while maintaining area proportions and unfolding it onto a rectangle. The map substantially keeps sizes and shapes of all continents and oceans while it reduces distortions of their shapes at the same time as a Dymaxion map does. Triangular world maps are also possible. . The name is derived from (authalic ) and graph. In 2011 the Authagraph mapping projection was selected by the Japanese National Museum of Emerging Science and innovation (Miraikan) as its official mapping tool.〔(【引用サイトリンク】title=The National Museum of Emerging Science and Innovation (Miraikan) )〕 As of 2015 it is used in official Japanese high school text books.〔http://dwl.gov-online.go.jp/video/cao/dl/public_html/gov/pdf/hlj/20120401/26-27.pdf〕 ==See also== * List of map projections 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Authagraph」の詳細全文を読む スポンサード リンク
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