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Křovák's Projection
Křovák's projection or simply Krovak is a conic projection invented in 1922 by Czech geodesist Josef Křovák. The projection is based on Bessel ellipsoid and it was calculated as the optimal projection of Czechoslovakia (in its interwar extent including Carpathian Ruthenia). It is still in use as national grids for civil state maps of the Czech Republic and Slovakia Slovakia, officially the Slovak Republic, is a landlocked country in Central Europe. It is bordered by Poland to the north, Ukraine to the east, Hungary to the south, Austria to the west, and the Czech Republic to the northwest. Slovakia's m .... The corresponding coordinate system is abbreviated S-JTSK (for ''Systém Jednotné trigonometrické sítě katastrální'', "the Unified cadastral trigonometric network System"), code 5514. The projection has been deliberately made so that for any point located in former Czechoslovakia, the X coordinate may be always bigger (in absolute value) than Y. This ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conic Projection
In cartography, a map projection is any of a broad set of Transformation (function) , transformations employed to represent the curved two-dimensional Surface (mathematics), surface of a globe on a Plane (mathematics), 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. Projection is a necessary step in creating a two-dimensional map and is one of the essential elements of cartography. All projections of a sphere on a plane necessarily distort the surface in some way. Depending on the purpose of the map, some distortions are acceptable and others are not; therefore, different map projections exist in order to preserve some properties of the sphere-like body at the expense of other properties. The study of map projections is primarily about the characterization of their distortions. There is no limit to the number of possible map projections. More generally, proje ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
