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videos:geopolitics [2025/06/19 05:51] jhagstrandvideos:geopolitics [2025/07/09 00:26] (current) – [Map Projections] jhagstrand
Line 145: Line 145:
  
 observer at the center observer at the center
-horizon, a plane 5 km in diameter tangential to the observer +  * horizon, a plane 5 km in diameter tangential to the observer 
-zenith - directly over the observer's head +  zenith - directly over the observer's head 
-celestial meridian - the circle describing the plane containing the observer, the zenith, and North+  celestial meridian - the circle describing the plane containing the observer, the zenith, and North 
 + 
 +Projections chronological 
 +  * Orthographic 
 +  * Equirectangular 
 +  * 1100 Azimuthal Equidistant 
 +  * 1569 Mercator 
 +  * 1772 Lambert Azimuthal equal-area 
 +  * 1805 Albers equal-area conic 
 +  * 1885 Gall-Peters 
 +  * 1889 Aitoff 
 +  * 1898 Van der Grinten 
 +  * 1963 Robinson 
 +  * 1921 Winkel Tripel 
 +  * 1923 Goode Homolosine 
 +  * 1954 Fuller Dymaxian Polyhedron 
 +  * 1996 Waterman Butterfly 
 + 
 +projection sequence 
 +  * Equirectangular 
 +  * Mercator 
 +  * Aitoff 
 +  * Fuller 
 + 
 +wall chart - the whole globe on one page 
 +  * centered on Prime Meridian 
 +  * centered on Anti Meridian 
 +  * centered on a pole 
 +  * add an orthographic with 4 hemispheres 
  
 ===== geosketch cheatsheet ===== ===== geosketch cheatsheet =====
videos/geopolitics.1750326678.txt.gz · Last modified: 2025/06/19 05:51 by jhagstrand

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