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@kra3
Last active May 3, 2018 11:30
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GIS

Point coordinates are in x, y order

  • easting, northing for projected coordinates
  • longitude, and latitude for geographic coordinates

The coordinate reference system for all GeoJSON coordinates is a geographic coordinate reference system, using the World Geodetic System 1984 (WGS 84) [WGS84] datum, with longitude and latitude units of decimal degrees.

The latitude must be a number between -90 and 90 and the longitude between -180 and 180.

For lats and longs:

  • 6 decimal places will provide accuracy up-to 4 inches.
  • 8 decimal places will provide accuracy up-to 1 cm
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