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A library for area, distance, heading measurements (spherical_util.dart if port from android-maps-utils).

Getting Started

In your dart/flutter project add the dependency:

   maps_toolkit: ^1.0.1+1

A simple usage example:

import 'package:maps_toolkit/maps_toolkit.dart';

main() {
  val distanceBetweenPoints = SphericalUtil.computeDistanceBetween(
    LatLng(51.5073509, -0.1277583),
    LatLng(48.856614, 2.3522219)

List of functions

  • SphericalUtil.computeArea - calculate the area of a closed path on Earth.
  • SphericalUtil.computeDistanceBetween - calculate the distance between two points, in meters.
  • SphericalUtil.computeHeading - calculate the heading from one point to another point.
  • SphericalUtil.computeLength - calculate the length of the given path, in meters, on Earth.
  • SphericalUtil.computeOffset - calculate the point resulting from moving a distance from an origin in the specified heading (expressed in degrees clockwise from north).
  • SphericalUtil.computeOffsetOrigin - calculate the location of origin when provided with a point destination, meters travelled and original heading.
  • SphericalUtil.computeSignedArea - calculate the signed area of a closed path on Earth.
  • SphericalUtil.interpolate - calculate the point which lies the given fraction of the way between the origin and the destination.

Features and bugs

Please file feature requests and bugs at the issue tracker.


Maps toolkit (port from android-maps-utils library)