Tuesday, September 20, 2016

Wikipedia picture of the day for September 21

Lambert conformal conic projection

The Lambert conformal conic projection is a conic map projection used for aeronautical charts, portions of the State Plane Coordinate System, and many national and regional mapping systems. It is one of seven projections introduced by Johann Heinrich Lambert in 1772. Conceptually, the projection seats a cone over the sphere of the Earth and projects the surface conformally onto the cone. The cone is unrolled, and the parallel that was touching the sphere is assigned unit scale. By scaling the resulting map, two parallels can be assigned unit scale, with scale decreasing between them and increasing outside them. Unlike other conic projections, no true secant form of this projection exists.

Map: Strebe, using Geocart



from Wikipedia picture of the day feed http://ift.tt/2d0uleT

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