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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. 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 · As you’ve already learned, map projections are fundamental tools in cartography that aim to depict the Earth’s three-dimensional surface on a two-dimensional map. To achieve this, mapmakers utilize various mathematical techniques to transform the Earth’s curved surface onto different geometric shapes known as developable surfaces.
Mar 1, 2023 · What is a Map Projection? Caitlin Dempsey. Updated: March 1, 2023. GIS Learning. A map projection refers to any of the numerous techniques employed in cartography to depict the three-dimensional surface of the Earth or other spherical objects on a two-dimensional plane.
Jan 27, 2024 · If you’re in need of a visual reference guide to the various map projection types …. Then, look no further. Because we’ve pumped out a goldmine of the top 50 global map projections used by cartographers today. From Aitoff to Winkel, these map projections are your blueprint for designing cartographic masterpieces.
Sep 11, 2020 · In this post, we will quickly go over what a map projection is, how to classify the various map projections, and the advantages and disadvantages of some of the most popular ones, including those available on MapChart. What is a map projection? The surface of the earth is curved but maps are flat.
The method used to portray a part of the spherical Earth on a flat surface, whether a paper map or a computer screen, is called a map projection. No flat map can rival a globe in truly representing the surface of the entire Earth, so every flat map misrepresents the surface of the Earth in some way.
There are three main categories of map projection, those in which projection is directly onto a flat plane, those onto a cone sitting on the sphere that can be unwrapped, and other onto a cylinder around the sphere that can be unrolled (Figure 2.15 above). All three are shown in their normal aspects.
