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2. Map projection - Wikipedia

   en.wikipedia.org/wiki/Map_projection

   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. [ 4][ 5 ...

3. Azimuthal equidistant projection - Wikipedia

   en.wikipedia.org/wiki/Azimuthal_equidistant...

   The azimuthal equidistant projection is an azimuthal map projection. It has the useful properties that all points on the map are at proportionally correct distances from the center point, and that all points on the map are at the correct azimuth (direction) from the center point. A useful application for this type of projection is a polar ...

4. History of navigation - Wikipedia

   en.wikipedia.org/wiki/History_of_navigation

   The history of navigation, or the history of seafaring, is the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. Many peoples have excelled as seafarers, prominent among them the Austronesians ( Islander Southeast Asians ...

5. List of map projections - Wikipedia

   en.wikipedia.org/wiki/List_of_map_projections

   Lines of constant bearing (rhumb lines) are straight, aiding navigation. Areas inflate with latitude, becoming so extreme that the map cannot show the poles. 2005 Web Mercator: Cylindrical Compromise Google: Variant of Mercator that ignores Earth's ellipticity for fast calculation, and clips latitudes to ~85.05° for square presentation. De ...

6. Rhumb line - Wikipedia

   en.wikipedia.org/wiki/Rhumb_line

   Rhumb line. Image of a loxodrome, or rhumb line, spiraling towards the North Pole. In navigation, a rhumb line, rhumb ( / rʌm / ), or loxodrome is an arc crossing all meridians of longitude at the same angle, that is, a path with constant bearing as measured relative to true north .

7. Wikipedia:Obtaining geographic coordinates - Wikipedia

   en.wikipedia.org/wiki/Wikipedia:Obtaining...

   Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude for the location. User interface in English language. Mapcoordinates: Map to coordinates: Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude and Elevation for the location. User interface in German language. NASA World Wind ...

8. Waypoint - Wikipedia

   en.wikipedia.org/wiki/Waypoint

   Waypoint. A waypoint is a point or place on a route or line of travel, a stopping point, an intermediate point, or point at which course is changed, [1] [2] the first use of the term tracing to 1880. [2] In modern terms, it most often refers to coordinates which specify one's position on the globe at the end of each "leg" (stage) of an air ...

9. History of longitude - Wikipedia

   en.wikipedia.org/wiki/History_of_longitude

   The history of longitude describes the centuries-long effort by astronomers, cartographers and navigators to discover a means of determining the longitude of any given place on Earth. The measurement of longitude is important to both cartography and navigation. In particular, for safe ocean navigation, knowledge of both latitude and longitude ...