Circle Distance

Null safety compatible

Calculate the great-circle distance between two points (having Latitude, Longitude) on the surface of Earth You can get the distance using the Spherical law of cosines, Haversine formula or Vincenty`s formula

Included in this library:

• Spherical law of cosines
• Haversine formula
• Vincenty` formula

Disclaimer: The earth is not quite a sphere. This means that errors(0.3%,0.5% errors) from assuming spherical geometry might be considerable depending on the points; so: don't trust your life on this value

Usage example:

final lat1 = 41.139129;
final lon1 = 1.402244;

final lat2 = 41.139074;
final lon2 = 1.402315;

var gcd = new GreatCircleDistance.fromDegrees(latitude1: lat1, longitude1: lon1, latitude2: lat2, longitude2: lon2);

print('Distance from location 1 to 2 using the Haversine formula is: ${gcd.haversineDistance()}');
print('Distance from location 1 to 2 using the Spherical Law of Cosines is: ${gcd.sphericalLawOfCosinesDistance()}');
print('Distance from location 1 to 2 using the Vicenty`s formula is: ${gcd.vincentyDistance()}');

Check Wikipedia for detailed description on Great-circle distance

Thanks to Oreofe Solarin for the fabulous base library