RE: INTRODUCTION TO CARTOGRAPHY - CARTESIAN COORDINATES & GRID SYSTEMS
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I have clear knowledge about Cartesian coordinate system. This is used in geography are planar representations of locational information typically derived by converting the spherical Earth's geographic coordinates into something less cumbersome to deal with in map form. There are many forms of geographic Cartesian coordinate systems but the most common include the Universal Transverse Mercator (UTM), Universal Polar Stereographic (UPS), Military Grid Reference System (MGRS), State Plane Coordinate (SPC), US National Grid, and the Ordnance Survey National Grid. Each of these systems is devised for a particular purpose, whether that is to allow for interoperability with other systems or for more specific uses such as military uses or regional planning. All of them use datums and map projections specifically selected to improve their accuracy. They also possess some form of lettering and numbering system that allows precise locations down to 10 m in some systems.
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Hey @sifatsarker, thank you for your beautiful, lengthy comment! :)
You're right, we project the Earth's spherical surface on a 2D piece of paper and therefore convert (not always/ not necessarily) geographical coordinates into orthogonal coordinate systems in order to achieve preservation of the scale factor along given specific directions.
Thanks for mentioning all those Cartesian Coordinate Systems. The MGRS and the OSNG are used in very specific cases though.
Thanks for dropping by!
You also welcome.
Go ahead & Best wishes for you.
Have a good day.