Collignon projection

Collignon projection of the world.

The Collignon projection is an equal-area pseudocylindrical map projection first known to be published by Édouard Collignon in 1865 and subsequently cited by A. Tissot in 1881.

For the smallest choices of the parameters chosen for this projection, the sphere may be mapped either to a single diamond, a pair of squares or a triangle. (Another projection that maps each hemisphere to a square is the quincuncial map).

It is used in the polar areas as part of the HEALPix spherical projection, which is widely used in physical cosmology in making maps of the cosmic microwave background, in particular by the WMAP and future Planck Surveyor space missions.

External links

• Pseudocylindrical Projections: Collignon Projection, Carlos A. Furuti
• Projection COLLIGNON à méridiens et parallèles rectilignes, Manuel Luque, Giuseppe Matarazzo
• An interactive Java Applet to study the metric deformations of the Collignon Projection.

This cartography or mapping term article is a stub. You can help Wikipedia by expanding it.v · Categories: Cartographic projections Equal-area projections Cartography stubs Wikimedia Foundation. 2010. Игры ⚽ Нужно сделать НИР? MEI Academy Steve McAllister Look at other dictionaries: Collignon — Charles Collignon, a French fencer and 1908 olympic champion Christophe Collignon, a Belgian politician (b. 1969) Frédéric Collignon, a Belgian professional Table football player (b. 1975). Collignon projection, a pseudocylindrical map projection …   Wikipedia Map projection — A medieval depiction of the Ecumene (1482, Johannes Schnitzer, engraver), constructed after the coordinates in Ptolemy s Geography and using his second map projection A map projection is any method of representing the surface of a sphere or other …   Wikipedia Cylindrical equal-area projection — of the world; standard parallel at 40°N …   Wikipedia Tobler hyperelliptical projection — The Tobler hyperelliptical projection is a family of pseudocylindrical projections used for mapping the earth.It is named for Waldo R. Tobler, its inventor. It is an equal area projection. In the normal aspect, the parallels of latitude are… …   Wikipedia Список картографических проекций — В этом списке картографические проекции рассортированы по виду поверхности проектирования. Традиционно выделяют три категории проекций: цилиндрические, конические и азимутальные. Некоторые проекции трудно отнести к какой либо из этих трёх… …   Википедия HEALPix — (sometimes written as Healpix), an acronym for Hierarchical Equal Area isoLatitude Pixelisation of a 2 sphere, can refer to either an algorithm for pixelisation of the 2 sphere, an associated software package, [http://healpix.jpl.nasa.gov/… …   Wikipedia Le Cinquième Élément — Données clés Titre original Le Cinquième Élément Réalisation Luc Besson Scénario Luc Besson Robert Mark Kamen Acteurs principaux Bruce Willis Gary Oldman Ian …   Wikipédia en Français 5e élément — Le Cinquième Élément Le Cinquième Élément Titre original Le Cinquième Élément Réalisation Luc Besson Acteurs principaux Bruce Willis Gary Oldman Ian Holm Milla Jovovich Chris Tucker Luke Perry Brion James Tommy Tiny Lister Jr. Charlie Creed M …   Wikipédia en Français Cinquième élément — Le Cinquième Élément Le Cinquième Élément Titre original Le Cinquième Élément Réalisation Luc Besson Acteurs principaux Bruce Willis Gary Oldman Ian Holm Milla Jovovich Chris Tucker Luke Perry Brion James Tommy Tiny Lister Jr. Charlie Creed M …   Wikipédia en Français L'Affaire Salengro — est un téléfilm français réalisé par Yves Boisset, réalisé en 2008 et diffusé le 14 avril 2009 sur France 2. Le film a fait l objet d une projection en avant première à l Assemblée nationale, le 24 mars 2009, de nombreuses scènes ayant été… …   Wikipédia en Français 18+ © Academic, 2000-2024 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”