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What is a projected coordinate system?
How do I choose a projected coordinate system?
What are the different types of projected coordinate systems?
How many projected coordinate systems are there in ArcGIS?
Download the list of supported geographic and vertical coordinate systems. Projected coordinate systems are planar systems that use linear measurements for the coordinates rather than angular units. A projected coordinate system is composed of a geographic coordinate system and a map projection together.
Each projected coordinate system, such as "Universal Transverse Mercator WGS 84 Zone 26N," is defined by a choice of map projection (with specific parameters), a choice of geodetic datum to bind the coordinate system to real locations on the earth, an origin point, and a choice of unit of measure.
In the example above, the scale factor of 0.9996 means that there is a compression of the map at the central meridian (the location farthest from the secant lines) of the UTM coordinate system where 100 meters on the earth’s surface will measure 99.96 meters on the map at the central meridian.
A Projected Coordinate System (PCS) is a type of spatial reference system that represents the three-dimensional earth on a two-dimensional plane. It employs mathematical techniques to convert spherical earth surfaces into flat maps while minimizing distortion as much as possible.
May 21, 2023 · Coordinate systems are frameworks that are used to define unique positions. For instance, in geometry, we use x (horizontal) and y (vertical) coordinates to define points on a two-dimensional plane. The coordinate system used to define locations on the three-dimensional earth is the geographic coordinate system (GCS), based on a sphere or spheroid.
Figure 2.44: Universal Transverse Mercator Projected Coordinate System. Since UTM is a planar coordinate system the result of converting an angular unit of measure used to locate objects on a geographic coordinate system to a linear unit of measure via a Cartesian Coordinate System.
