CRS

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Revision as of 13:14, 15 July 2026 by Maxim@tygron.com (talk | contribs) (Created page with "A Coordinate Reference System (CRS) tells you how to interpret coordinates on a map. It defines: * The coordinate system (e.g., latitude/longitude vs. x/y) * The map projection or datum (how the Earth’s shape is transformed to a flat map) * The units and axes (degrees, meters, etc.) So the same numeric coordinates can point to different places depending on the CRS. Common examples: * Web Mercator (EPSG:3857): x/y in meters for many web maps and default in the {{soft...")
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A Coordinate Reference System (CRS) tells you how to interpret coordinates on a map.

It defines:

  • The coordinate system (e.g., latitude/longitude vs. x/y)
  • The map projection or datum (how the Earth’s shape is transformed to a flat map)
  • The units and axes (degrees, meters, etc.)

So the same numeric coordinates can point to different places depending on the CRS.

Common examples:

  • Web Mercator (EPSG:3857): x/y in meters for many web maps and default in the Tygron Platform.
  • WGS 84 (EPSG:4326): longitude/latitude in degrees (used by GPS and GeoJSON).

See also

  • [GeoJSON]
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