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The Tabula Rogeriana, drawn by al-Idrisi in 1154 The Blue Marble photograph in its original orientation [1]. South-up map orientation is the orientation of a map with south up, at the top of the map, amounting to a 180-degree rotation of the map from the standard convention of north-up.
In cartography, a map projection is any of a broad set of transformations employed to represent the curved two-dimensional surface of a globe on a plane. [1] [2] [3] In a map projection, coordinates, often expressed as latitude and longitude, of locations from the surface of the globe are transformed to coordinates on a plane.
The Fra Mauro world map is a major cartographical work. [2] It took several years to complete and was very expensive to produce. The map contains hundreds of detailed illustrations and more than 3000 descriptive texts. It was the most detailed and accurate representation of the world that had been produced up until that time.
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The orientation of a map is the relationship between the directions on the map and the corresponding compass directions in reality. The word " orient " is derived from Latin oriens , meaning east. In the Middle Ages many maps, including the T and O maps , were drawn with east at the top (meaning that the direction "up" on the map corresponds to ...
A T and O map or O–T or T–O map (orbis terrarum, orb or circle of the lands; with the letter T inside an O), also known as an Isidoran map, is a type of early world map that represents world geography as first described by the 7th-century scholar Isidore of Seville (c. 560–636) in his De Natura Rerum and later his Etymologiae (c. 625) [1]
These three grid patterns (due north, 32 degrees west of north, and 49 degrees west of north) are the result of a disagreement between David Swinson "Doc" Maynard, whose land claim lay south of Yesler Way, and Arthur A. Denny and Carson D. Boren, whose land claims lay to the north (with Henry Yesler and his mill soon brought in between Denny and the others): [2] Denny and Boren preferred that ...