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Qibla, and related, map projections / W. Tobler in Cartography and Geographic Information Science, vol 29 n° 1 (January 2002)  

Public [article]  inCartography and Geographic Information Science > vol 29 n° 1 (January 2002) . - pp 17 - 23 Titre : Qibla, and related, map projections Type de document : Article/Communication Auteurs : W. Tobler, Auteur Année de publication : 2002 Article en page(s) : pp 17 - 23 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Projections [Termes IGN] projection [Termes IGN] projection azimutale Résumé : (Auteur) The qibla problem-determination of the direction to Mecca-has given rise to retro-azimuthal map projections, an interesting, albeit unusual and little known, class of map projections. Principal contributors to this subject were Craig and Hammer, both writing in 1910. A property of retro-azimuthal projections is that the parallels are bent downwards towards the equator. The resulting maps, when extended to the entire world, thus must overlap themselves. An unusual recent discovery from Iran suggests that Muslims might have been prior inventors of a similar projection, by at least several centuries. A later corollary by Schoy leads to a new "cylindrical" azimuthal map projection with parallels bending away from the equator, here illustrated for the first time. Numéro de notice : A2002-047 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE/POSITIONNEMENT Nature : Article DOI : 10.1559/152304002782064574 En ligne : https://doi.org/10.1559/152304002782064574 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=21964 [article]

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