google-polyline


Encodes and decodes Google's polyline format

Install via npm

``sh
$ npm install --save google-polyline
`

Usage

`js
var polyline = require( 'google-polyline' )
`

`js
polyline.encode([
[ 38.5, -120.2 ],
[ 40.7, -120.95 ],
[ 43.252, -126.453 ]
])

> '_p~iF~ps|U_ulLnnqC_mqNvxq@'
``

`js
polyline.decode( '_p~iF~ps|U_ulLnnqC_mqNvxq@' )

> [
[ 38.5, -120.2 ],
[ 40.7, -120.95 ],
[ 43.252, -126.453 ]
]
``

Benchmarks

`sh
$ npm run benchmark
`

`


decode: 3 points ⨉ 1000

ok ~9.03 ms (0 s + 9026482 ns)

decode: ~350 points ⨉ 1000

ok ~34 ms (0 s + 33985497 ns)

encode: 3 points ⨉ 1000

ok ~16 ms (0 s + 15696046 ns)

encode: ~350 points ⨉ 1000

ok ~80 ms (0 s + 80340403 ns)
``