longitude_and_latitude_calculator

This is a simple plug-in that calculates the distances between two points with longitude and latitude.

Did you know the distance between New York and Los Angeles is 2446.51.

Features

• Gives distance in kilometers or miles
• Requires no other dependencies
• Apache 2.0 License

Getting Started

Run this command:

With Dart:

 $ dart pub add longitude_and_latitude_calculator

With Flutter:

 $ flutter pub add longitude_and_latitude_calculator

This will add a line like this to your package's pubspec.yaml (and run an implicit dart pub get):

dependencies:
  longitude_and_latitude_calculator: ^0.0.1

Import it Now in your Dart or Flutter code, you can use:

import 'package:longitude_and_latitude_calculator/longitude_and_latitude_calculator.dart';

Add this code to your program and fill in the variables To get the desired result.

  var lonAndLatDistance = LonAndLatDistance();

  final double miles = lonAndLatDistance.lonAndLatDistance(
      lat1: 34.052235,
      lon1: -118.243683,
      lat2: 40.754932,
      lon2: -73.984016,
      km: false);

Variable instructions

Calculates the distance between two GPS coordinates in either miles or kilometers.

The function takes in four required parameters:

• [lat1]: The latitude of the first coordinate.
• [lon1]: The longitude of the first coordinate.
• [lat2]: The latitude of the second coordinate.
• [lon2]: The longitude of the second coordinate.

The function also takes in one optional parameter:

• [km]: A boolean value that determines whether the distance should be returned in kilometers (true) or miles (false).

If [km] is not provided, it defaults to false (miles). If any of the coordinates are not provided, they default to the following values:

• lat1: 34.052235
• lon1: -118.243683
• lat2: 40.754932
• lon2: -73.984016

Returns the distance between the two coordinates in either miles or kilometers.

Example

import 'package:longitude_and_latitude_calculator/longitude_and_latitude_calculator.dart';

void main() {
var lonAndLatDistance = LonAndLatDistance();

final double miles = lonAndLatDistance.lonAndLatDistance(
   lat1: 34.052235,
   lon1: -118.243683,
   lat2: 40.754932,
   lon2: -73.984016,
   km: false);

final double Kilometer = lonAndLatDistance.lonAndLatDistance(
   lat1: 34.052235,
   lon1: -118.243683,
   lat2: 40.754932,
   lon2: -73.984016,
   km: true);

print("Longitude and latitude locations:");
print("*********************************");
print("Latitude 1  34.052235");
print("Longitude 1  -118.243683");
print("Latitude 1  40.754932");
print("Longitude 1  -73.984016");
print("*********************************");
print("Distance in miles: $miles");
print("Distance in Kilometer: $Kilometer");
print("*********************************");
}

Output