@googlemaps/polyline-codec
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1.0.28 • Public • Published

Google Maps JavaScript Polyline Encoding

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Description

Encode and decode polyines in Nodejs or the browser using this package.

Polyline encoding is a lossy compression algorithm that allows you to store a series of coordinates as a single string. Point coordinates are encoded using signed values.

Read more at https://developers.google.com/maps/documentation/utilities/polylinealgorithm.

Install

Available via npm as the package @googlemaps/polyline-codec.

npm i @googlemaps/polyline-codec

Documentation

The reference documentation can be found at this link.

Example

import { decode, encode } from "@googlemaps/polyline-codec";

const encoded = "_p~iF~ps|U_ulLnnqC_mqNvxq`@";
console.log(decode(encoded, 5));
// [
//   [38.5, -120.2],
//   [40.7, -120.95],
//   [43.252, -126.453],
// ]

const path = [
  [38.5, -120.2],
  [40.7, -120.95],
  [43.252, -126.453],
];
console.log(encode(path, 5));
// "_p~iF~ps|U_ulLnnqC_mqNvxq`@"

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Install

npm i @googlemaps/polyline-codec

Weekly Downloads

15,427

Version

1.0.28

License

Apache-2.0

Unpacked Size

93.6 kB

Total Files

12

Last publish

Collaborators

  • kenough
  • wangela
  • google-wombot