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About coordinate reference systems
Latitude and longitude coordinates are not the only way to refer to points on Earth. Features in many geographic files are referenced with a coordinate reference system (CRS) that must first be transformed to latitude and longitude by Magic Maps before additional processing can take place.
Coordinate reference systems are usually projected coordinates that use a projection method and a model of Earth. Magic Maps is able to transform coordinate reference systems that use the following projection methods:
- Albers Equal Area
- Double Stereographic
- Equirectangular
- Lambert Azimuthal Equal Area
- Lambert Conformal Conic
- Transverse Mercator
Magic Maps supports the following models of Earth for coordinate transformation:
- Airy 1830
- Airy 1848
- Airy Modified 1849
- Bessel 1841
- Clarke 1866
- Clarke 1880 RGS
- International 1924
- GRS 1967
- GRS 1980
- WGS 1984 (default)
The above projection methods and Earth models encompass support for the following popular coordinate reference systems:
- Most U.S. state CRSs
- British National Grid
If your coordinate reference system is not supported by Magic Maps, please visit the Magic Maps mailing list to request support.
See also: