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Coordinates

Every coordinate in AarxMaps is a LatLng (AarxMaps.Core.Models.Geometry). Places and Routes take it as input and return it in results.

Example​

using AarxMaps.Core.Models.Geometry;

var spaceNeedle = new LatLng(47.6205, -122.3493);   // latitude, longitude

Console.WriteLine($"{spaceNeedle.Latitude}, {spaceNeedle.Longitude}");

Rules​

ArgumentRange (decimal degrees)
latitude-90 to 90
longitude-180 to 180
  • Latitude comes first. GeoJSON and some map libraries use longitude first, so check the order when you copy values. Named arguments make it explicit: new LatLng(latitude: 47.6205, longitude: -122.3493).
  • Invalid values throw at construction. An out-of-range value, NaN or infinity throws MapsInvalidRequestException, before any request is sent.
  • A swapped pair can still be valid. new LatLng(-122.3, 47.6) throws, but new LatLng(-73.98, 40.75) is a valid point in Antarctica. Range checks only catch some mistakes.
  • Instances are immutable. Latitude and Longitude are read-only, so a LatLng is safe to share.
  • Equality is by reference. LatLng is a class without value equality; compare Latitude and Longitude yourself.

See also​