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What is a map projection?
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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.
Mar 10, 2024 · Similarly, a map projection is a method by which cartographers translate a sphere or globe into a two-dimensional representation. In other words, a map projection systematically renders a 3D ellipsoid (or spheroid) of Earth to a 2D map surface.
A map projection is used to portray all or part of the round Earth on a flat surface. This cannot be done without some distortion. Every projection has its own set of advantages and disadvantages. There is no "best" projection. The mapmaker must select the one best suited to the needs, reducing distortion of the most important features.
Sep 11, 2020 · A map projection is a method by which we translate a sphere or globe into a two-dimensional representation. From globe to map. In fact, the term “map projection” comes from the concept of projecting a light source through the earth’s surface onto a two-dimensional surface (a map).
Nov 21, 2017 · A map projection is a technique for taking the curved surface of the earth and showing it on something flat, similar to a PC screen or a bit of paper. maps makers have conceived techniques for taking points on the curved surface of the earth and "anticipating" them onto a flat surface.
Jan 21, 2023 · Enter the map projection. Map projections refer to the methods and procedures that are used to transform the spherical three-dimensional earth into two-dimensional planar surfaces. Specifically, map projections are mathematical formulas that are used to translate latitude and longitude on the surface of the earth to x and y coordinates on a ...
Form — Some projections distort the “form” of features (e.g., Azimuthal Equidistant) On the projection above, look at how Australia, on the right, is unrecognizable, and New Zealand is stretched out into a ring around the left edge of the map. This projection does not preserve the “look” or the “form” of places.
